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WO2024029686A1 - Appareil électronique et procédé de changement de fréquence de rafraîchissement - Google Patents

Appareil électronique et procédé de changement de fréquence de rafraîchissement Download PDF

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Publication number
WO2024029686A1
WO2024029686A1 PCT/KR2023/005992 KR2023005992W WO2024029686A1 WO 2024029686 A1 WO2024029686 A1 WO 2024029686A1 KR 2023005992 W KR2023005992 W KR 2023005992W WO 2024029686 A1 WO2024029686 A1 WO 2024029686A1
Authority
WO
WIPO (PCT)
Prior art keywords
refresh rate
period
screen
cycle
display
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2023/005992
Other languages
English (en)
Korean (ko)
Inventor
이주석
이민우
염동현
김광태
김승렬
이서영
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020220120365A external-priority patent/KR20240018337A/ko
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Priority to EP23720705.5A priority Critical patent/EP4350678A4/fr
Publication of WO2024029686A1 publication Critical patent/WO2024029686A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2007—Display of intermediate tones
    • G09G3/2014—Display of intermediate tones by modulation of the duration of a single pulse during which the logic level remains constant
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/32—Pulse-control circuits
    • H05B45/325—Pulse-width modulation [PWM]
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/105—Controlling the light source in response to determined parameters
    • H05B47/11—Controlling the light source in response to determined parameters by determining the brightness or colour temperature of ambient light
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0809—Several active elements per pixel in active matrix panels
    • G09G2300/0842—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
    • G09G2300/0861—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor with additional control of the display period without amending the charge stored in a pixel memory, e.g. by means of additional select electrodes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0257—Reduction of after-image effects
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G09G2330/021—Power management, e.g. power saving
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00—Aspects of display data processing
    • G09G2340/04—Changes in size, position or resolution of an image
    • G09G2340/0407—Resolution change, inclusive of the use of different resolutions for different screen areas
    • G09G2340/0435—Change or adaptation of the frame rate of the video stream
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
    • G09G2360/144—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light being ambient light
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]

Definitions

  • Electronic devices such as smartphones, tablet personal computers, smart watches, etc. can display images (or screens) through a display panel based on the refresh rate.
  • the refresh rate may refer to the number of frames per second, for example, the number of times per second that an image refreshes on the display panel.
  • the electronic device may include a display panel including a plurality of pixels.
  • the electronic device may include a display driving circuit.
  • the display driving circuit may be configured to display a screen at a first refresh rate by providing an emission signal to the display panel according to a first cycle to drive each of the plurality of pixels. there is.
  • the display driving circuit drives each of the plurality of pixels in response to identifying that the first refresh rate is changed to a second refresh rate that is less than the first refresh rate and is not a factor or divisor of the first refresh rate.
  • the display panel may be configured to display the screen at the second refresh rate by providing the light emission signal to the display panel according to the second cycle.
  • the display driving circuit in response to identifying that the first refresh rate is changed to a third refresh rate that is less than the first refresh rate and is a factor of the first refresh rate, is configured to drive each of the plurality of pixels in the first period. It may be configured to display the screen at the third refresh rate by providing the light emission signal to the display panel according to .
  • the difference value between the first period and the second period may be less than a threshold value.
  • a method for executing within an electronic device including a display panel includes displaying a screen at a first refresh rate by providing an emission signal to the display panel according to a first cycle to drive each of a plurality of pixels in the display panel. It can be included.
  • the method in response to identifying that the first refresh rate is changed to a second refresh rate that is less than the first refresh rate and is not a factor or divisor of the first refresh rate, to drive each of the plurality of pixels.
  • the method may include displaying a screen at the second refresh rate by providing the light emitting signal to the display panel according to a second cycle.
  • the method in response to identifying that the first refresh rate is changed to a third refresh rate that is less than the first refresh rate and is a factor of the first refresh rate, drives each of the plurality of pixels according to the first period.
  • the method may include displaying a screen at the third refresh rate by providing the light emission signal to the display panel.
  • the difference value between the first period and the second period may be less than a threshold value.
  • the electronic device may include an illuminance sensor configured to obtain data indicating the illuminance around the electronic device.
  • the electronic device may include a display panel including a plurality of pixels.
  • the electronic device may include a display driving circuit.
  • the display driving circuit may be configured to display a screen at a first refresh rate by providing an emission signal to the display panel according to a first cycle to drive each of the plurality of pixels. there is.
  • the display driving circuit in response to identifying that the first refresh rate is changed to a second refresh rate that is less than the first refresh rate and is not a factor or divisor of the first refresh rate, is configured to display the illumination level below the reference illumination level.
  • the second refresh rate is adjusted by providing the light emitting signal to the display panel according to the second period among the second and third periods allocated to the second refresh rate to drive each of the plurality of pixels based on data.
  • the light emitting signal according to any one of the second period and the third period to display the screen and drive each of the plurality of pixels based on the data representing the illuminance that is higher than the reference illuminance. It may be configured to display the screen at the second refresh rate by providing to the display panel.
  • the difference value between the first period and the second period may be less than a threshold value.
  • the difference value between the first period and the third period may be greater than or equal to the threshold value.
  • a method for implementing within an electronic device that includes a light sensor and a display panel may include displaying a screen at a first refresh rate by providing an emission signal to the display panel according to a first cycle to drive each of the plurality of pixels. there is.
  • the method in response to identifying that the first refresh rate is changed to a second refresh rate that is less than the first refresh rate and is not a factor or divisor of the first refresh rate, may include: Based on this, the light emitting signal is provided to the display panel according to the second period among the second and third periods allocated to the second refresh rate to drive each of the plurality of pixels, thereby creating a screen at the second refresh rate.
  • any one of the second period and the third period to drive each of the plurality of pixels based on the data indicating the illuminance that is greater than the reference illuminance. It may include an operation of displaying a screen at the second refresh rate by providing the screen to a display panel.
  • the difference value between the first period and the second period may be less than a threshold value.
  • the difference value between the first period and the third period may be greater than or equal to the threshold value.
  • FIG. 1 is a block diagram of an electronic device in a network environment according to various embodiments.
  • FIG. 2 is a block diagram of a display module, according to various embodiments.
  • FIG. 3 is a simplified block diagram of an example electronic device.
  • FIG. 4 illustrates refresh rates provided through a display panel of an example electronic device.
  • Figure 5 shows an example of a change in the period of a light emission signal according to a change in the refresh rate.
  • FIG. 6 is a flow diagram illustrating an example method for identifying a period based on luminance and illuminance.
  • FIG. 1 is a block diagram of an electronic device 101 in a network environment 100, according to various embodiments.
  • the electronic device 101 communicates with the electronic device 102 through a first network 198 (e.g., a short-range wireless communication network) or a second network 199. It is possible to communicate with at least one of the electronic device 104 or the server 108 through (e.g., a long-distance wireless communication network). According to one embodiment, the electronic device 101 may communicate with the electronic device 104 through the server 108.
  • a first network 198 e.g., a short-range wireless communication network
  • a second network 199 e.g., a long-distance wireless communication network.
  • the electronic device 101 may communicate with the electronic device 104 through the server 108.
  • the electronic device 101 includes a processor 120, a memory 130, an input module 150, an audio output module 155, a display module 160, an audio module 170, and a sensor module ( 176), interface 177, connection terminal 178, haptic module 179, camera module 180, power management module 188, battery 189, communication module 190, subscriber identification module 196 , or may include an antenna module 197.
  • at least one of these components eg, the connection terminal 178) may be omitted or one or more other components may be added to the electronic device 101.
  • some of these components e.g., sensor module 176, camera module 180, or antenna module 197) are integrated into one component (e.g., display module 160). It can be.
  • the processor 120 for example, executes software (e.g., program 140) to operate at least one other component (e.g., hardware or software component) of the electronic device 101 connected to the processor 120. It can be controlled and various data processing or calculations can be performed. According to one embodiment, as at least part of data processing or computation, the processor 120 stores commands or data received from another component (e.g., sensor module 176 or communication module 190) in volatile memory 132. The commands or data stored in the volatile memory 132 can be processed, and the resulting data can be stored in the non-volatile memory 134.
  • software e.g., program 140
  • the processor 120 stores commands or data received from another component (e.g., sensor module 176 or communication module 190) in volatile memory 132.
  • the commands or data stored in the volatile memory 132 can be processed, and the resulting data can be stored in the non-volatile memory 134.
  • the processor 120 includes a main processor 121 (e.g., a central processing unit or an application processor) or an auxiliary processor 123 that can operate independently or together (e.g., a graphics processing unit, a neural network processing unit ( It may include a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor).
  • a main processor 121 e.g., a central processing unit or an application processor
  • auxiliary processor 123 e.g., a graphics processing unit, a neural network processing unit ( It may include a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor.
  • the electronic device 101 includes a main processor 121 and a secondary processor 123
  • the secondary processor 123 may be set to use lower power than the main processor 121 or be specialized for a designated function. You can.
  • the auxiliary processor 123 may be implemented separately from the main processor 121 or as part of it.
  • the auxiliary processor 123 may, for example, act on behalf of the main processor 121 while the main processor 121 is in an inactive (e.g., sleep) state, or while the main processor 121 is in an active (e.g., application execution) state. ), together with the main processor 121, at least one of the components of the electronic device 101 (e.g., the display module 160, the sensor module 176, or the communication module 190) At least some of the functions or states related to can be controlled.
  • co-processor 123 e.g., image signal processor or communication processor
  • may be implemented as part of another functionally related component e.g., camera module 180 or communication module 190. there is.
  • the auxiliary processor 123 may include a hardware structure specialized for processing artificial intelligence models.
  • Artificial intelligence models can be created through machine learning. For example, such learning may be performed in the electronic device 101 itself on which the artificial intelligence model is performed, or may be performed through a separate server (e.g., server 108).
  • Learning algorithms may include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but It is not limited.
  • An artificial intelligence model may include multiple artificial neural network layers.
  • Artificial neural networks include deep neural network (DNN), convolutional neural network (CNN), recurrent neural network (RNN), restricted boltzmann machine (RBM), belief deep network (DBN), bidirectional recurrent deep neural network (BRDNN), It may be one of deep Q-networks or a combination of two or more of the above, but is not limited to the examples described above.
  • artificial intelligence models may additionally or alternatively include software structures.
  • the memory 130 may store various data used by at least one component (eg, the processor 120 or the sensor module 176) of the electronic device 101. Data may include, for example, input data or output data for software (e.g., program 140) and instructions related thereto.
  • Memory 130 may include volatile memory 132 or non-volatile memory 134.
  • the program 140 may be stored as software in the memory 130 and may include, for example, an operating system 142, middleware 144, or application 146.
  • the input module 150 may receive commands or data to be used in a component of the electronic device 101 (e.g., the processor 120) from outside the electronic device 101 (e.g., a user).
  • the input module 150 may include, for example, a microphone, mouse, keyboard, keys (eg, buttons), or digital pen (eg, stylus pen).
  • the sound output module 155 may output sound signals to the outside of the electronic device 101.
  • the sound output module 155 may include, for example, a speaker or a receiver. Speakers can be used for general purposes such as multimedia playback or recording playback.
  • the receiver can be used to receive incoming calls. According to one embodiment, the receiver may be implemented separately from the speaker or as part of it.
  • the display module 160 can visually provide information to the outside of the electronic device 101 (eg, a user).
  • the display module 160 may include, for example, a display, a hologram device, or a projector, and a control circuit for controlling the device.
  • the display module 160 may include a touch sensor configured to detect a touch, or a pressure sensor configured to measure the intensity of force generated by the touch.
  • the audio module 170 can convert sound into an electrical signal or, conversely, convert an electrical signal into sound. According to one embodiment, the audio module 170 acquires sound through the input module 150, the audio output module 155, or directly (e.g., through a wired connection) or wirelessly with the electronic device 101. Sound can be output through an external electronic device (e.g., electronic device 102) (e.g., speaker or headphone) connected to the .
  • an external electronic device e.g., electronic device 102
  • speaker or headphone e.g., speaker or headphone
  • the sensor module 176 detects the operating state (e.g., power or temperature) of the electronic device 101 or the external environmental state (e.g., user state) and generates an electrical signal or data value corresponding to the detected state. can do.
  • the sensor module 176 includes, for example, a gesture sensor, a gyro sensor, an air pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, It may include a temperature sensor, humidity sensor, or light sensor.
  • Interface 177 may support one or more designated protocols that can be used to connect electronic device 101 to an external electronic device (e.g., electronic device 102) directly (e.g., via a wired connection) or wirelessly.
  • the interface 177 may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.
  • HDMI high definition multimedia interface
  • USB universal serial bus
  • SD card interface Secure Digital
  • connection terminal 178 may include a connector through which the electronic device 101 can be physically connected to an external electronic device (eg, the electronic device 102).
  • the connection terminal 178 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (eg, a headphone connector).
  • the haptic module 179 can convert electrical signals into mechanical stimulation (e.g., vibration or movement) or electrical stimulation that the user can perceive through tactile or kinesthetic senses.
  • the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.
  • the camera module 180 can capture still images and moving images.
  • the camera module 180 may include one or more lenses, image sensors, image signal processors, or flashes.
  • the power management module 188 can manage power supplied to the electronic device 101.
  • the power management module 188 may be implemented as at least a part of, for example, a power management integrated circuit (PMIC).
  • PMIC power management integrated circuit
  • the battery 189 may supply power to at least one component of the electronic device 101.
  • the battery 189 may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.
  • Communication module 190 is configured to provide a direct (e.g., wired) communication channel or wireless communication channel between electronic device 101 and an external electronic device (e.g., electronic device 102, electronic device 104, or server 108). It can support establishment and communication through established communication channels. Communication module 190 operates independently of processor 120 (e.g., an application processor) and may include one or more communication processors that support direct (e.g., wired) communication or wireless communication.
  • processor 120 e.g., an application processor
  • the communication module 190 is a wireless communication module 192 (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 194 (e.g., : LAN (local area network) communication module, or power line communication module) may be included.
  • a wireless communication module 192 e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module
  • GNSS global navigation satellite system
  • wired communication module 194 e.g., : LAN (local area network) communication module, or power line communication module
  • the corresponding communication module is a first network 198 (e.g., a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network 199 (e.g., legacy It may communicate with an external electronic device 104 through a telecommunication network such as a cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., LAN or WAN).
  • a telecommunication network such as a cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., LAN or WAN).
  • a telecommunication network such as a cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., LAN or WAN).
  • a telecommunication network such as a cellular network, a 5G network, a next-generation communication network
  • the wireless communication module 192 uses subscriber information (e.g., International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module 196 to communicate within a communication network such as the first network 198 or the second network 199.
  • subscriber information e.g., International Mobile Subscriber Identifier (IMSI)
  • IMSI International Mobile Subscriber Identifier
  • the wireless communication module 192 may support 5G networks after 4G networks and next-generation communication technologies, for example, NR access technology (new radio access technology).
  • NR access technology provides high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimization of terminal power and access to multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low latency). -latency communications)) can be supported.
  • the wireless communication module 192 may support high frequency bands (eg, mmWave bands), for example, to achieve high data rates.
  • the wireless communication module 192 uses various technologies to secure performance in high frequency bands, for example, beamforming, massive array multiple-input and multiple-output (MIMO), and full-dimensional multiplexing. It can support technologies such as input/output (FD-MIMO (full dimensional MIMO)), array antenna, analog beam-forming, or large scale antenna.
  • the wireless communication module 192 may support various requirements specified in the electronic device 101, an external electronic device (e.g., electronic device 104), or a network system (e.g., second network 199).
  • the wireless communication module 192 supports Peak data rate (e.g., 20 Gbps or more) for realizing eMBB, loss coverage (e.g., 164 dB or less) for realizing mmTC, or U-plane latency (e.g., 164 dB or less) for realizing URLLC.
  • Peak data rate e.g., 20 Gbps or more
  • loss coverage e.g., 164 dB or less
  • U-plane latency e.g., 164 dB or less
  • the antenna module 197 may transmit signals or power to or receive signals or power from the outside (e.g., an external electronic device).
  • the antenna module 197 may include an antenna including a radiator made of a conductor or a conductive pattern formed on a substrate (eg, PCB).
  • the antenna module 197 may include a plurality of antennas (eg, an array antenna). In this case, at least one antenna suitable for the communication method used in the communication network, such as the first network 198 or the second network 199, is connected to the plurality of antennas by, for example, the communication module 190. can be selected Signals or power may be transmitted or received between the communication module 190 and an external electronic device through the at least one selected antenna.
  • other components eg, radio frequency integrated circuit (RFIC) may be additionally formed as part of the antenna module 197.
  • RFIC radio frequency integrated circuit
  • the antenna module 197 may form a mmWave antenna module.
  • a mmWave antenna module includes a printed circuit board, an RFIC disposed on or adjacent to a first side (e.g., bottom side) of the printed circuit board and capable of supporting a designated high frequency band (e.g., mmWave band); And a plurality of antennas (e.g., array antennas) disposed on or adjacent to the second side (e.g., top or side) of the printed circuit board and capable of transmitting or receiving signals in the designated high frequency band. can do.
  • a mmWave antenna module includes a printed circuit board, an RFIC disposed on or adjacent to a first side (e.g., bottom side) of the printed circuit board and capable of supporting a designated high frequency band (e.g., mmWave band); And a plurality of antennas (e.g., array antennas) disposed on or adjacent to the second side (e.g., top or side) of the
  • peripheral devices e.g., bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)
  • signal e.g. commands or data
  • commands or data may be transmitted or received between the electronic device 101 and the external electronic device 104 through the server 108 connected to the second network 199.
  • Each of the external electronic devices 102 or 104 may be of the same or different type as the electronic device 101.
  • all or part of the operations performed in the electronic device 101 may be executed in one or more of the external electronic devices 102, 104, or 108.
  • the electronic device 101 may perform the function or service instead of executing the function or service on its own.
  • one or more external electronic devices may be requested to perform at least part of the function or service.
  • One or more external electronic devices that have received the request may execute at least part of the requested function or service, or an additional function or service related to the request, and transmit the result of the execution to the electronic device 101.
  • the electronic device 101 may process the result as is or additionally and provide it as at least part of a response to the request.
  • cloud computing distributed computing, mobile edge computing (MEC), or client-server computing technology can be used.
  • the electronic device 101 may provide an ultra-low latency service using, for example, distributed computing or mobile edge computing.
  • the external electronic device 104 may include an Internet of Things (IoT) device.
  • Server 108 may be an intelligent server using machine learning and/or neural networks.
  • the external electronic device 104 or server 108 may be included in the second network 199.
  • the electronic device 101 may be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology and IoT-related technology.
  • FIG. 2 is a block diagram 200 of the display module 160, according to various embodiments.
  • the display module 160 may include a display 210 and a display driver IC (DDI) 230 for controlling the display 210.
  • the DDI 230 may include an interface module 231, a memory 233 (eg, buffer memory), an image processing module 235, or a mapping module 237.
  • the DDI 230 receives image information including image data or an image control signal corresponding to a command for controlling the image data from other components of the electronic device 101 through the interface module 231. can do.
  • the image information is stored in the processor 120 (e.g., the main processor 121 (e.g., an application processor) or the auxiliary processor 123 ( For example: a graphics processing unit).
  • the DDI 230 can communicate with the touch circuit 250 or the sensor module 176, etc. through the interface module 231. In addition, the DDI 230 can communicate with the touch circuit 250 or the sensor module 176, etc. At least a portion of the received image information may be stored, for example, in frame units, in the memory 233.
  • the image processing module 235 may, for example, store at least a portion of the image data in accordance with the characteristics or characteristics of the image data. Preprocessing or postprocessing (e.g., resolution, brightness, or size adjustment) may be performed based at least on the characteristics of the display 210.
  • the mapping module 237 performs preprocessing or postprocessing through the image processing module 135. A voltage value or current value corresponding to the image data may be generated.
  • the generation of the voltage value or current value may be performed by, for example, an attribute of the pixels of the display 210 (e.g., an arrangement of pixels ( RGB stripe or pentile structure), or the size of each subpixel). At least some pixels of the display 210 may be performed at least in part based on, for example, the voltage value or the current value.
  • visual information eg, text, image, or icon
  • the image data may be displayed through the display 210.
  • the display module 160 may further include a touch circuit 250.
  • the touch circuit 250 may include a touch sensor 251 and a touch sensor IC 253 for controlling the touch sensor 251.
  • the touch sensor IC 253 may control the touch sensor 251 to detect a touch input or a hovering input for a specific position of the display 210.
  • the touch sensor IC 253 may detect a touch input or a hovering input by measuring a change in a signal (eg, voltage, light amount, resistance, or charge amount) for a specific position of the display 210.
  • the touch sensor IC 253 may provide information (e.g., location, area, pressure, or time) about the detected touch input or hovering input to the processor 120.
  • At least a portion of the touch circuit 250 is disposed as part of the display driver IC 230, the display 210, or outside the display module 160. It may be included as part of other components (e.g., auxiliary processor 123).
  • the display module 160 may further include at least one sensor (eg, a fingerprint sensor, an iris sensor, a pressure sensor, or an illumination sensor) of the sensor module 176, or a control circuit therefor.
  • the at least one sensor or a control circuit therefor may be embedded in a part of the display module 160 (eg, the display 210 or the DDI 230) or a part of the touch circuit 250.
  • the sensor module 176 embedded in the display module 160 includes a biometric sensor (e.g., a fingerprint sensor)
  • the biometric sensor records biometric information associated with a touch input through a portion of the display 210. (e.g. fingerprint image) can be acquired.
  • the pressure sensor may acquire pressure information associated with a touch input through part or the entire area of the display 210. You can.
  • the touch sensor 251 or the sensor module 176 may be disposed between pixels of a pixel layer of the display 210, or above or below the pixel layer.
  • the display module 160 of the electronic device may support a variable refresh rate. For example, under conditions where the state of the electronic device changes from a state of enhancing screen quality to a state of reducing power consumption by displaying the screen, the electronic device may adjust the refresh rate of the display from the first refresh rate to the state of reducing power consumption by displaying the screen. It is possible to change to a second refresh rate that is different from the first refresh rate. For example, when the first refresh rate is changed to the second refresh rate, the optical characteristics of the screen displayed through the display may change. For example, a change in the optical characteristics above a certain level may reduce the quality of services provided through the display.
  • FIG. 3 is a simplified block diagram of an example electronic device.
  • the electronic device 101 may include a processor 120, a display driving circuit 230, and a display panel 320.
  • the electronic device 101 may further include an illumination sensor 310.
  • the processor 120 may include at least a portion of the processor 120 shown in FIG. 1 .
  • the display driving circuit 230 may include at least a portion of the DDI 230 shown in FIG. 2 .
  • the display panel 320 may include at least a portion of the display 210 shown in FIG. 2 .
  • the illuminance sensor 310 may include at least a portion of the sensor module 176 shown in FIG. 1 or at least a portion of the sensor module 176 shown in FIG. 2 .
  • the illuminance sensor 310 may be used to obtain data representing the illuminance around the electronic device 101 (or the illuminance of the environment including the electronic device 101). However, it is not limited to this.
  • the display driving circuit 230 may display a screen through the display panel 320 based on one (a) refresh rate among a plurality of refresh rates.
  • the refresh rate may be identified among the plurality of refresh rates by processor 120.
  • the display driving circuit 230 may obtain a signal indicating the refresh rate from the processor 120.
  • the display driving circuit 230 may display a screen through the display panel 320 based on the signal and the identified refresh rate.
  • the display driving circuit 230 may identify one of the plurality of refresh rates and display a screen through the display panel 320 based on the identified refresh rate.
  • the display driving circuit 230 may display a screen through the display panel 320 based on a first refresh rate among the plurality of refresh rates, and may display a screen that is smaller than the first refresh rate among the plurality of refresh rates.
  • a screen may be displayed through the display panel 320 based on a second refresh rate, and the screen may be displayed based on a third refresh rate among the plurality of refresh rates, which is smaller than the first refresh rate and different from the second refresh rate. ) can be displayed through.
  • the first refresh rate, the second refresh rate, and the third refresh rate may be illustrated through FIG. 4.
  • FIG. 4 illustrates refresh rates provided through a display panel of an example electronic device.
  • the display driving circuit 230 may display a screen based on the first refresh rate.
  • the display driving circuit 230 displays the first image 410-1 to the M image 410-M within the time interval 405 (M is a natural number greater than 1). ) are sequentially displayed through the display panel 320, so that the screen can be displayed based on the first refresh rate.
  • the processor 120 sequentially displays the first image 420-1 to the M image 420-M within the time interval 415 following the time interval 405 through the display panel 320. By displaying , the screen can be displayed based on the first refresh rate.
  • Time interval 405 may be the same length of time as time interval 415 .
  • M may be 120.
  • the first refresh rate is not limited to 120 (Hz).
  • the display driving circuit 230 may display a screen based on the second refresh rate. For example, as shown in the chart 425, the display driving circuit 230 displays the first image 430-1 to the Nth image 430-N within the time interval 435 (N is a natural number smaller than M). ) are sequentially displayed through the display panel 320, so that the screen can be displayed based on the second refresh rate. For example, the display driving circuit 230 displays the first image 440-1 to the Nth image 440-N within the time interval 445 following the time interval 435 to display the display panel 320. By sequentially displaying the screen, the screen can be displayed based on the second refresh rate.
  • the time interval 435 may be the same length of time as the time interval 445. For example, when the second refresh rate is 96 (Hz), N may be 96. However, the second refresh rate is not limited to 96 (Hz).
  • the display driving circuit 230 may display a screen based on the third refresh rate.
  • the display driving circuit 230 displays the first image 460-1 to the Kth image 460-K (K is N (and/ Alternatively, the screen can be displayed based on the third refresh rate by sequentially displaying (or a natural number smaller than M) through the display panel 320.
  • the display driving circuit 230 displays the first image 470-1 to the Kth image 470-K within the time interval 465 following the time interval 455 to display the display panel 320.
  • the time interval 435 may be the same length of time as the time interval 445.
  • K may be 60.
  • the third refresh rate is not limited to 60 (Hz).
  • the power consumed to display the screen based on the first refresh rate is greater than the power consumed to display the screen based on the second refresh rate (or the third refresh rate).
  • the quality of the screen displayed based on the first refresh rate may be higher than the quality of the screen displayed based on the second refresh rate (or the third refresh rate).
  • the power consumed for displaying a screen based on the second refresh rate is greater than the power consumed for displaying a screen based on the third refresh rate
  • the power consumed for displaying a screen based on the second refresh rate is greater than the power consumed for displaying a screen based on the second refresh rate.
  • the quality of the screen displayed may be higher than the quality of the screen displayed based on the third refresh rate.
  • processor 120 may identify the first state in which enhancing screen quality takes precedence over reducing power consumption by screen display.
  • the display driving circuit 230 may display a screen at the first refresh rate through the display panel 320 in the first state based on control of the processor 120.
  • the processor 120 may identify a second state in which reducing power consumption by screen display takes precedence over enhancing screen quality.
  • the display driving circuit 230 displays a screen at the second refresh rate (or the third refresh rate) through the display panel 320 in the second state, based on the control of the processor 120. can do.
  • the processor 120 drives the display by sending a signal indicating that the first refresh rate is changed to the second refresh rate (or the third refresh rate) under the condition that the first state is changed to the second state. It can be provided to the circuit 230.
  • the processor 120 is based on identifying that a static image is displayed through the display panel 320 for more than a certain period of time or that no touch input is received for a certain period of time.
  • the signal indicating changing the first refresh rate to the second refresh rate (or the third refresh rate) may be provided to the display driving circuit 230.
  • processor 120 may, based on identifying that frame data is not provided to display driving circuit 230 from processor 120 during a reference time or that the frame data does not change during the reference time,
  • the signal indicating changing the first refresh rate to the second refresh rate (or the third refresh rate) may be provided to the display driving circuit 230.
  • processor 120 may generate the signal indicating changing the first refresh rate to the second refresh rate (or the third refresh rate) based on identifying that no touch input is received for a reference time. It can be provided to the display driving circuit 230.
  • the display driving circuit 230 may, based on the signal obtained from the processor 120, indicate changing the first refresh rate to the second refresh rate (or the third refresh rate), It can be identified that the refresh rate is changed to the second refresh rate (or the third refresh rate).
  • the processor 120 changes the second refresh rate (or the third refresh rate) to the first refresh rate (or the second refresh rate) under the condition that the second state changes to the first state.
  • a signal indicating this may be provided to the display driving circuit 230.
  • processor 120 may determine the second refresh rate (or the third refresh rate) based on identifying an event displaying a dynamic image within the second state or receiving a touch input within the second state. ) may be provided to indicate that the signal is changed to the first refresh rate (or the second refresh rate).
  • the display driving circuit 230 may receive the signal obtained from the processor 120, indicating that the second refresh rate (or the third refresh rate) is changed to the first refresh rate (or the second refresh rate). Based on , it can be identified that the second refresh rate (or the third refresh rate) is changed to the first refresh rate (or the third refresh rate).
  • the display driving circuit 230 may display a screen at the changed refresh rate in response to identifying a change in the refresh rate of the display panel 320.
  • display driving circuit 230 may, in response to identifying that the first refresh rate has changed to the second refresh rate (or the third refresh rate), change the second refresh rate (or the third refresh rate) from the first refresh rate.
  • the screen can be displayed through the display panel 320 at a third refresh rate.
  • display driving circuit 230 may, in response to identifying that the third refresh rate has changed to the first refresh rate (or the second refresh rate), change the first refresh rate (or the second refresh rate) from the third refresh rate.
  • the screen can be displayed through the display panel 320 at a second refresh rate.
  • display driving circuit 230 may, in response to identifying that the second refresh rate has changed to the first refresh rate (or the third refresh rate), change the first refresh rate (or the third refresh rate) from the second refresh rate.
  • the screen can be displayed through the display 320 at a third refresh rate.
  • a change in the refresh rate of the display panel 320 may cause a change in the optical characteristics of the screen.
  • a change in the optical characteristics above a certain level may reduce the quality of services provided through the display panel 320.
  • a method for changing the optical characteristics below a certain level may be required.
  • the display panel 320 may be driven according to a pulse width modulation (PWM) scheme to adjust the brightness (or brightness) of the screen displayed through the display panel 320.
  • PWM pulse width modulation
  • the driving according to the PWM method controls the emission of each of the plurality of pixels in the display panel 320 based on a pulse signal provided based on a cycle. This may represent driving to adjust the brightness.
  • the period may be the time interval between the start of a pulse and the start of the next pulse.
  • the pulse signal may include an emission signal provided from the display driving circuit 230 to the display panel 320 to drive each of the plurality of pixels.
  • the light emission signal may be a signal for adjusting the voltage of a source of a driving transistor for driving each of the plurality of pixels.
  • the light emission signal may be a signal for providing current to each of the plurality of pixels through the driving transistor.
  • the time period of light emission of each of the plurality of pixels within the period may be changed depending on the width (or duty ratio) of the light emission signal (or the width of the pulse signal).
  • the optical characteristics of the screen displayed through the display panel 320 are determined by the period (e.g., the time between the start of a pulse and the start of the next pulse). section) and the duty ratio (e.g., the ratio of the width of the period to the width of the light emitting signal). For example, if the period is 2 (ms) (milliseconds) and the light emitting signal in each period is 1 (ms), the duty ratio is 50%.
  • the difference may be determined according to the relationship between the first duty ratio of the light emitting signal provided for the first refresh rate and the second duty ratio of the light emitting signal provided for the second refresh rate.
  • the difference may correspond to the difference between the first duty ratio and the second duty ratio.
  • the second duty ratio may be determined based on the first duty ratio or may be derived from the first duty ratio.
  • the second duty ratio may be the same as or correspond to the first duty ratio.
  • the difference may be determined according to the relationship between the first period of the light emitting signal provided for the first refresh rate and the second period of the light emitting signal provided for the second refresh rate.
  • the difference may correspond to a difference between the first period and the second period.
  • the smaller the difference between the first period and the second period the smaller the difference in optical properties can be.
  • it is not limited to this.
  • the period of the light emitting signal provided for the second refresh rate may be the first period of the light emitting signal provided for the first refresh rate to reduce the difference between the first period and the second period. It may be determined based on a period or derived from the first period.
  • the second refresh rate may be smaller than the first refresh rate.
  • the second refresh rate may not be a factor or divisor of the first refresh rate. For example, when the first refresh rate is 120 (Hz), the second refresh rate may be 96 (Hz). For example, when the first refresh rate is 120 (Hz), the second refresh rate may be 48 (Hz).
  • the second period of the light emitting signal provided for the second refresh rate reduces the difference between the optical characteristics of the screen displayed at the first refresh rate and the optical characteristics of the screen displayed at the second refresh rate.
  • the difference value between the first period and the second period may be less than a threshold value.
  • the threshold may be a value derived to reduce the difference between the optical characteristics of the screen displayed at the first refresh rate and the optical characteristics of the screen displayed at the second refresh rate.
  • the threshold may be a value chosen to ensure that a predetermined quality of optical properties is provided.
  • the light emitting signal is provided to the display panel 320 at the second refresh rate.
  • the optical characteristics of the screen displayed at the first refresh rate are determined through the display panel 320.
  • the difference value between the indicated values may be less than a predetermined value.
  • the first refresh rate is 120 (Hz)
  • the second refresh rate is 96 (Hz)
  • the first period is 1/240 (about 4.17 (ms) (milliseconds)
  • the threshold is When it is about 1.25 (ms), which is 30% of the first cycle
  • the second cycle is about 2.91 (ms) ((1/240) ) and about 3.47 (ms)((1/96)X, which are values in the range between about 5.42 (ms)((1/240) (1/3), e.g., 3 cycles per frame) or about 5.21 (ms) ((1/96)X(1/2), e.g., 2 cycles per frame.
  • the first refresh rate is 120 (Hz)
  • the second refresh rate is 48 (Hz)
  • the first period is 1/240 (about 4.17 (ms)
  • the threshold is the first period.
  • the second period is about 2.91 (ms) ((1/240) About 5.21 (ms)(1/48)X(1/4), which are values within the range of about 5.42 (ms)((1/240) , e.g. 4 cycles per frame), about 4.17 (ms)((1/48)X(1/5), e.g. 5 cycles per frame), about 3.47 (ms)((1/48)X( 1/6), e.g. 6 cycles per frame), or about 2.98 (ms) ((1/48)X(1/7), e.g. 7 cycles per frame).
  • the cycle of the light emitting signal provided for the third refresh rate is based on the first cycle of the light emitting signal provided for the first refresh rate to reduce the difference from the first cycle. It can be determined or derived from the first period.
  • the third refresh rate may be smaller than the first refresh rate.
  • the third refresh rate may be a factor or divisor of the first refresh rate. For example, when the first refresh rate is 120 (Hz), the third refresh rate may be 60 (Hz). For example, when the first refresh rate is 120 (Hz), the third refresh rate may be 30 (Hz). However, it is not limited to this.
  • the period of the light emission signal provided for the third refresh rate is to reduce the difference between the optical characteristics of the screen displayed at the first refresh rate and the optical characteristics of the screen displayed at the third refresh rate, It may be the same as the first cycle.
  • the period of the light emitting signal provided for the third refresh rate is the same as the first period, one frame (a frame) of the third refresh rate (frame length is the reciprocal of the third refresh rate) )
  • the number of one or more cycles of the light emitting signal within ) can be determined or derived through Equation 1 below.
  • A represents the number of cycles of the light emitting signal within one frame of the third refresh rate
  • B represents the first refresh rate
  • C represents the third refresh rate
  • D represents the third refresh rate. It can indicate the number of cycles of the light emitting signal within one frame at a refresh rate of 1. For example, if the first refresh rate (B) is 120 (Hz) and the third refresh rate (C) is 60 (Hz) and the number of cycles of the luminescent signal (D) within the frame of the first refresh rate is When is 2, the number (A) of cycles of the light emitting signal within the frame of the third refresh rate may be 4.
  • the first refresh rate (B) is 120 (Hz) and the third refresh rate (C) is 30 (Hz) and the number of cycles of the luminescent signal (D) within the frame of the first refresh rate is When is 2, the number (A) of cycles of the light emitting signal within the frame of the third refresh rate may be 8.
  • the values of A, B, C, and D are not limited to the values illustrated above.
  • the period of the light emission signal provided to the display panel 320 for each of the first refresh rate, the second refresh rate, and the third refresh rate can be expressed as Table 1 below. .
  • R/R (refresh rate) Length of frame (ms) cycle (ms) Number of cycles in frame 1st refresh rate 120 1/120 1/240 2 2nd refresh rate 96 1/96 1/(96X2) 2 1/(96X3) 3 48 1/48 1/(48X4) 4 1/(48X5) 5 1/(48X6) 6 3rd refresh rate 60 1/60 1/240 4 30 1/30 1/240 8
  • the first refresh rate may be referred to as a reference refresh rate or a first reference refresh rate in that it is used to determine the period of the light emission signal for displaying the screen at the second refresh rate and the third refresh rate, respectively. You can.
  • a second reference refresh rate that is distinct from the first reference refresh rate may be used for the electronic device 101.
  • a plurality of refresh rates available within the electronic device 101 may include a second reference refresh rate that is not a factor of the first reference refresh rate.
  • the second reference refresh rate may be a refresh rate that can display a screen having optical characteristics corresponding to the optical characteristics of the screen displayed at the first reference refresh rate.
  • the second reference refresh rate may be used to determine the period of the light emission signal for displaying a screen at each of the plurality of refresh rates.
  • it may include a fourth refresh rate that is a factor of the second reference refresh rate.
  • the plurality of refresh rates may include the first reference refresh rate and the second refresh rate that is not a factor of the second reference refresh rate.
  • the first reference refresh rate is 60 (Hz)
  • the number of cycles in one frame of the first reference refresh rate is 4, and the threshold for the first reference refresh rate is light emission for displaying a screen at the first reference refresh rate.
  • the second reference refresh rate is 165 (Hz)
  • the number of cycles in one frame of the second reference refresh rate is 2
  • the threshold for the second reference refresh rate is 2.
  • R/R Length of frame (ms) cycle (ms) Number of cycles in frame First reference refresh rate 60 1/60 1/240 4
  • Second reference refresh rate 165 1/165 1/330 2 2nd refresh rate 96 1/96 1/(96X2) 2 1/(96X3) 3 1/(96X4) 4 48 1/48 1/(48X4) 4 1/(48X5) 5 1/(48X6) 6 1/(48X7) 7 1/(48X8) 8 1/(48X9) 9 3rd refresh rate 30 1/30 1/240 8 4th refresh rate 82.5 1/82.5 1/330 4
  • the period of the light emitting signal for displaying the screen at the second refresh rate is the period of the screen at the first reference refresh rate.
  • the period for displaying the screen at the second refresh rate is about 5.21 (ms) (1/(96X2), for example, 2 per frame, which is within the first range. cycles), about 3.47 (ms) (1/(96 96X4), e.g. 4 cycles per frame).
  • the period for displaying the screen at the second refresh rate is about 5.21 (ms) (1/(48X4), e.g., per frame, which is within the first range. 4 cycles), about 4.17 (ms)(1/(48X5), e.g., 5 cycles per frame) within the first range, about 3.47 (ms)(1/( 48 (ms) (1/(48)
  • the period of the light emission signal for displaying the screen at the third refresh rate is the period of the light emission signal for displaying the screen at the first reference refresh rate.
  • the period of the light emission signal for displaying the screen at the fourth refresh rate is the period of the light emission signal for displaying the screen at the second reference refresh rate.
  • the display driving circuit 230 provides the display panel 320 with a light emitting signal according to a first cycle to drive each of the plurality of pixels in the display panel 320, thereby providing the first refresh rate ( Example: The screen can be displayed at 120 (Hz)).
  • the display driving circuit 230 may select a second refresh rate (e.g., 96) that is smaller than the first refresh rate and is not a factor of the first refresh rate. (Hz)).
  • the display driving circuit 230 displays the screen at the second refresh rate by providing the light emission signal to the display panel 320 according to a second cycle to drive each of the plurality of pixels. can do.
  • the reciprocal of the first refresh rate divided by the first cycle length and the reciprocal of the second refresh rate divided by the second cycle length are each one of the first refresh rate and the second refresh rate.
  • the reciprocal of the first refresh rate divided by the first cycle length and the reciprocal of the second refresh rate divided by the second cycle length may each be a natural number.
  • the difference value between the first period and the second period may be less than the threshold value.
  • the difference value is less than the threshold value, the difference between the optical characteristics of the screen displayed at the first refresh rate and the optical characteristics of the screen displayed at the second refresh rate may be relatively small.
  • the difference value is below the threshold, the transition from displaying the screen at the first refresh rate to displaying the screen at the second refresh rate will not be noticeable to the user. You can.
  • the difference value is less than the threshold value, the transition can be seamless.
  • the display driving circuit 320 may set a third refresh rate that is smaller than the first refresh rate and is a factor of the first refresh rate (e.g., 60 ( Hz)), the screen can be displayed at the third refresh rate by providing the light emitting signal to the display panel 320 according to the first cycle to drive each of the plurality of pixels.
  • the reciprocal of the third refresh rate divided by the first cycle length represents the number of one or more cycles in one frame of the third refresh rate, so the reciprocal of the third refresh rate is divided by the first cycle length.
  • the value divided by the cycle length may be a natural number.
  • the first refresh rate the first refresh rate
  • the optical characteristics of the screen displayed as may correspond to the optical characteristics of the screen displayed at the third refresh rate.
  • the cycle of the light emission signal for displaying the screen at the third refresh rate is the first cycle
  • the transition may be transparent to the user (not to be noticeable).
  • the period of the light emission signal for displaying the screen at the third refresh rate is the first period, the transition can be seamless.
  • Figure 5 shows an example of a change in the period of a light emission signal according to a change in the refresh rate.
  • each of the timing diagrams 500 and 550 represent time
  • the vertical axes of each of the timing diagrams 500 and 550 represent time from the display driving circuit 230 to the display panel ( 320) indicates the status of the light emitting signal (e.g., on/off, high/low, etc.).
  • the display driving circuit 230 has a timing 510 at which the first refresh rate (e.g., 120 (Hz)) is changed to the second refresh rate (e.g., 96 (Hz)).
  • the first refresh rate e.g., 120 (Hz)
  • the second refresh rate e.g., 96 (Hz)
  • a light emitting signal having a duty ratio of 1/2 (or 50%) according to the first period 512 (e.g., 1/240 (ms)
  • the screen can be displayed at the first refresh rate.
  • the display driving circuit 230 While displaying the screen at the first refresh rate within the first time interval 511, the display driving circuit 230 selects a second refresh rate (e.g., the second refresh rate) that is not a factor of the first refresh rate from the first refresh rate. The refresh rate is not a factor of the first refresh rate).
  • the display driving circuit 230 may change the first refresh rate to the second refresh rate at timing 510 in response to the identification. In response to the change, the display driving circuit 230 performs a second period 522 (e.g., within a second time interval 521, which is a time interval after timing 510, as shown in timing diagram 500).
  • the screen By providing the light emitting signal with a duty ratio of 1/2 (or 50%) according to 1/(96X2)) to the display panel 320, the screen can be displayed at the second refresh rate.
  • the difference value between the first period 512 and the second period 522 may be less than a threshold value (eg, (1/240)X0.3).
  • the above descriptions describe examples where the threshold value is a single value, but this is for convenience of explanation.
  • the threshold may be comprised of a plurality of threshold values.
  • the plurality of threshold values may include a first threshold value and a second threshold value.
  • each of the first threshold value and the second threshold value may be a value for providing optical characteristics corresponding to optical characteristics provided through the plurality of pixels based on the first refresh rate.
  • the first threshold and the second threshold may be selected to ensure that a predetermined quality of optical properties is provided.
  • the second period 522 is between a first value obtained by subtracting the first threshold value from the first period 512 and a second value obtained by adding the second threshold value to the first period 512. It may be within range. However, it is not limited to this.
  • the display driving circuit 230 may identify a change from the first refresh rate to a third refresh rate that is a factor of the first refresh rate while displaying the screen at the first refresh rate within the first time interval 511. there is.
  • the display driving circuit 230 may change the first refresh rate to the third refresh rate at timing 510 in response to the identification.
  • the display driving circuit 230 performs a first period 512 (e.g., within a second time period 533, which is a time period after timing 510, as shown in timing diagram 550).
  • a duty ratio of 1/2 (or 50%) according to 1/240 (ms) to the display panel 320, the screen can be displayed at the third refresh rate.
  • the display driving circuit 230 is configured to, while the screen is displayed at the first refresh rate, determine that the first refresh rate is less than the first refresh rate, is not a factor of the first refresh rate, and is different from the second refresh rate.
  • the screen may be displayed at the fourth refresh rate by providing the light emitting signal to the display panel 320 according to a third cycle to drive each of the plurality of pixels.
  • the difference value between the first period and the third period may be less than the threshold value, as is the difference value between the first period and the second period.
  • the third period may be less than the threshold value to reduce the difference between the optical characteristics of the screen displayed at the first refresh rate and the optical characteristics of the screen displayed at the fourth refresh rate.
  • the display driving circuit 230 provides the light emitting signal to the display panel 320 according to a third cycle to drive each of the plurality of pixels, thereby providing the first reference refresh rate, which is the first refresh rate.
  • the screen may be displayed at a second reference refresh rate that is different from the second refresh rate and the third refresh rate and is not a factor of the first reference refresh rate or a factor of the second refresh rate.
  • the difference value between the second period and the third period may be greater than or equal to the threshold value or less than the threshold value.
  • the difference value between the second period and the third period may be greater than or equal to the threshold value.
  • the second cycle for displaying the screen at the second refresh rate is 1/(96X3)(ms)
  • the second cycle is within the first range and the second range
  • the difference value between the second period and the third period may be less than the threshold value.
  • the display driving circuit 230 adaptively identifies a period for displaying the screen at the second refresh rate rather than a factor of the first refresh rate according to data representing the illuminance around the electronic device 101.
  • the electronic device 101 may include a non-volatile memory configured to store reference data for a plurality of periods, which are a plurality of candidate periods of the light emitting signal, defined for the second refresh rate (e.g., FIG. 1 It may include non-volatile memory 134).
  • the non-volatile memory may be within the display driving circuit 230 or outside the display driving circuit 230.
  • the plurality of cycles may include the second cycle, the third cycle, and the fourth cycle.
  • the difference value between the first period and the third period may be greater than or equal to the threshold value.
  • the third cycle may be included in the plurality of cycles for an environment in which a change in optical characteristics due to a change in the refresh rate of the display panel 320 may not be recognized by the user.
  • the difference value between the first period and the fourth period may be less than the threshold value.
  • the fourth cycle like the second cycle, is within the plurality of cycles for an environment in which a change in optical characteristics due to a change in the refresh rate of the display panel 320 can be recognized by the user. may be included. However, it is not limited to this.
  • the difference value between the first period and the second period may be smaller than the difference value between the first period and the fourth period.
  • the difference value between the first period and the second period is smaller than the difference value between the first period and the fourth period, by providing the light emitting signal according to the first period.
  • the difference in optical characteristics caused by switching from displaying a screen at a first refresh rate to displaying a screen at a second refresh rate by providing the light emitting signal according to the second cycle is caused by providing the light emitting signal according to the first cycle. It may be smaller than the difference in optical characteristics caused by switching from displaying the screen at the first refresh rate to displaying the screen at the second refresh rate by providing the light emission signal according to the fourth cycle.
  • the display driving circuit 230 may perform a plurality of cycles (e.g., the second cycle) to drive each of the plurality of pixels in response to the data indicating the illuminance that is greater than or equal to the first reference illuminance.
  • the screen can be displayed at the second refresh rate by providing the light emitting signal to the display panel 320 according to any one of a plurality of cycles including the third cycle and the fourth cycle. there is.
  • the electronic device 101 relatively recognizes the difference between the optical characteristics of the screen displayed at the first refresh rate and the optical characteristics of the screen displayed at the second refresh rate.
  • the display driving circuit 230 Because it indicates that the display driving circuit 230 is located in a state where it is not activated, the display driving circuit 230 operates in a plurality of cycles (e.g., a plurality of cycles including the second cycle, the third cycle, and the fourth cycle).
  • the display driving circuit 230 operates in a plurality of cycles (e.g., a plurality of cycles including the second cycle, the third cycle, and the fourth cycle).
  • the screen can be displayed at the second refresh rate. That is, since it is relatively difficult for the user to recognize changes in optical characteristics when the illuminance is high, any one of the cycles can be used regardless of the difference from the first cycle.
  • the display driving circuit 230 may, in response to the data indicating the illuminance greater than a second reference illuminance (the second reference illuminance being less than the first reference illuminance) and less than the first reference illuminance,
  • the screen can be displayed at the second refresh rate by providing the light emitting signal to the display panel 320 according to any one cycle (e.g., one of the second cycle and the fourth cycle) that satisfies condition 1.
  • the illuminance that is greater than the second reference illuminance and less than the first reference illuminance is determined by the electronic device 101 as the optical characteristics of the screen displayed at the first refresh rate and the optical characteristics of the screen displayed at the second refresh rate.
  • the display driving circuit 230 Since the difference between them indicates that the display driver circuit 230 is located within a state that can be recognized by the user, the display driving circuit 230 provides the light emitting signal to the display panel 320 according to whichever of the first conditions is satisfied.
  • the screen can be displayed at the second refresh rate. For example, when the difference between the first condition and the first cycle is less than the threshold, either the second cycle or the fourth cycle may be provided to the display panel 320. That is, since the user can feel a change in optical characteristics when the illuminance is within a certain range, cycles in which the difference from the first cycle is smaller than the threshold value can be used.
  • the display driving circuit 230 in response to the data indicating the illuminance that is less than the second reference illuminance, may provide a period satisfying a second condition (e.g., the second period, the third period, and the By providing the light emitting signal to the display panel 320 according to the second cycle of the fourth cycle), the screen can be displayed at the second refresh rate.
  • a second condition e.g., the second period, the third period, and the
  • the display driving circuit 230 is a cycle that satisfies the second condition (e.g., the second cycle, the third cycle, and the second cycle of the fourth cycle) to display the screen at the second refresh rate by providing the light emission signal to the display panel 320.
  • the second condition e.g., the second cycle, the third cycle, and the second cycle of the fourth cycle
  • the second period may be provided to the display panel 320.
  • the display driving circuit 230 adapts the identification of the period for displaying the screen at the second refresh rate rather than the factor of the first refresh rate according to data representing the luminance of the screen of the electronic device 101. It can be executed effectively.
  • the display driving circuit 230 may, in response to identifying that the first refresh rate is changed to the second refresh rate while the screen displayed at the first refresh rate is displayed at a luminance that is greater than or equal to the first reference luminance,
  • the screen can be displayed at the second refresh rate by providing the light emission signal to the display panel 320 according to any one of the second cycle, the third cycle, and the fourth cycle.
  • the luminance that is greater than the first reference luminance may be determined by the user when the electronic device 101 determines the difference between the optical characteristics of the screen displayed at the first refresh rate and the optical characteristics of the screen displayed at the second refresh rate.
  • the display driving circuit 230 may execute a plurality of cycles (e.g., a plurality of cycles including the second cycle, the third cycle, and the fourth cycle). ), the screen can be displayed at the second refresh rate by providing the light emission signal to the display panel 320 according to any one of the following. For example, when luminance is high, it is relatively difficult for the user to perceive changes in optical characteristics, so any of the above periods may be used regardless of the difference from the first period.
  • the display driving circuit 230 displays the screen displayed at the first refresh rate with a luminance that is greater than or equal to the second reference luminance (the second reference luminance is less than the first reference luminance) and less than the first reference luminance.
  • the screen can be displayed at the second refresh rate.
  • the luminance which is greater than the second reference luminance but less than the first reference luminance, is determined by the electronic device 101 between the optical characteristics of the screen displayed at the first refresh rate and the optical characteristics of the screen displayed at the second refresh rate.
  • the display driving circuit 230 provides the light emitting signal to the display panel 320 according to a certain period that satisfies the first condition.
  • the screen can be displayed at a second refresh rate. For example, if the first condition is that the difference from the first period is less than the threshold, either one of the second period and the fourth period may be provided to the display panel 320. there is. For example, since a user can recognize a change in optical characteristics when the luminance is within a certain range, a period having a difference from the first period that is less than the threshold may be used.
  • the display driving circuit 230 may, in response to identifying that the first refresh rate is changed to the second refresh rate while the screen displayed at the first refresh rate is displayed at a luminance that is less than the second reference luminance, By providing the light emitting signal to the display panel 320 according to a cycle that satisfies a second condition (for example, the second cycle among the second cycle, the third cycle, and the fourth cycle), the second The screen can be displayed at the refresh rate. For example, when the luminance is less than the second reference luminance, the electronic device 101 notices a significant difference between the optical characteristics of the screen displayed at the first refresh rate and the optical characteristics of the screen displayed at the second refresh rate.
  • a second condition for example, the second cycle among the second cycle, the third cycle, and the fourth cycle
  • the screen can be displayed at the second refresh rate.
  • the second condition is that the period has the smallest difference from the first period
  • the second period may be provided to the display panel 320.
  • a cycle with a small (or smallest) difference from the first cycle can be used.
  • the display driving circuit 230 may adaptively identify a period for displaying the screen at the second refresh rate based on both luminance and illuminance. The identification can be illustrated through FIG. 6.
  • FIG. 6 is a flow diagram illustrating an example method for identifying a period based on luminance and illuminance.
  • the display driving circuit 230 may display a screen at the first refresh rate.
  • the display driving circuit 230 may display the screen at the first refresh rate by providing the light emission signal to the display panel 320 according to the first cycle.
  • the display driving circuit 230 may identify a change from the first refresh rate to the second refresh rate. For example, display driving circuit 230 may perform the identification based on obtaining a signal indicating the change from processor 120.
  • the display driving circuit 230 determines that the luminance of the screen provided at the first refresh rate is greater than or equal to the first reference luminance (e.g., about 150 (nit)) and the electronic device 101 ) It is possible to identify whether the surrounding illuminance is higher than the first standard illuminance (e.g., about 200 (lux)). For example, the display driving circuit 230 may execute operation 607 based on identifying the luminance that is greater than or equal to the first reference luminance and the illuminance that is greater than or equal to the first reference luminance. For example, the display driving circuit 230 may execute operation 609 based on identifying the luminance that is less than the first reference luminance and/or the illuminance that is less than the first reference luminance.
  • the first reference luminance e.g., about 150 (nit)
  • the electronic device 101 It is possible to identify whether the surrounding illuminance is higher than the first standard illuminance (e.g., about 200 (lux)
  • the display driving circuit 230
  • the display driving circuit 230 identifies that the luminance is greater than or equal to the first reference luminance and, based on identifying that the illuminance is greater than or equal to the first reference luminance, performs the plurality of periods (e.g., the plurality of periods). Periods include the second cycle, the third cycle, and the fourth cycle) to display the screen at the second refresh rate by providing the light emitting signal to the display panel 320 according to any one cycle. You can. For example, the display driving circuit 230 sends the light emitting signal to the display panel 320 according to an independently identified period and whether the difference between the first period and each of the plurality of periods is less than the threshold. ), the screen can be displayed at the second refresh rate.
  • the plurality of periods e.g., the plurality of periods.
  • the display driving circuit 230 determines that the luminance is less than the second reference luminance (the second reference luminance is less than the first reference luminance), and the illuminance is the second reference illuminance (the second reference illuminance). It is possible to identify whether the illuminance is less than the first standard illuminance. For example, the display driving circuit 230 may execute operation 613 based on identifying the luminance that is less than the second reference luminance and the illuminance that is less than the second reference illuminance.
  • the display driving circuit 230 is based on identifying the luminance that is greater than the second reference luminance and less than the first reference luminance and/or the illuminance that is greater than the second reference illuminance and less than the first reference illuminance.
  • operation 611 can be executed.
  • the display driving circuit 230 identifies that the luminance is greater than or equal to the second reference luminance and less than the first reference luminance and/or that the illuminance is greater than or equal to the second reference illuminance and the first reference illuminance. Based on identifying that it is less than 100%, the screen can be displayed at the second refresh rate by providing the light emitting signal to the display panel 320 according to any one of the plurality of periods. For example, some of the plurality of periods include periods that satisfy a first condition (e.g., when the first condition includes a difference from the first period that is less than the threshold, the second period and the fourth cycle).
  • a first condition e.g., when the first condition includes a difference from the first period that is less than the threshold, the second period and the fourth cycle.
  • the display driving circuit 230 identifies whether a difference between the first period and each of the plurality of periods is less than the threshold value, and determines whether the difference among the plurality of periods is less than the threshold value.
  • the screen can be displayed at the second refresh rate by identifying the second cycle and the fourth cycle and providing the light emitting signal to the display panel 320 according to one of the second cycle and the fourth cycle. there is.
  • the display driving circuit 230 based on identifying that the luminance is less than the second reference luminance and that the illuminance is less than the second reference luminance, performs one (a) period of the plurality of periods. Accordingly, the screen can be displayed at the second refresh rate by providing the light emission signal to the display panel 320.
  • the cycle identified among the plurality of cycles may be a cycle that satisfies a second condition (e.g., if the second condition has the smallest difference from the first cycle, the second cycle , the third cycle, and the fourth cycle).
  • the second period may be a period in which the difference from the first period is the smallest among the plurality of periods.
  • the difference between the first period and the second period may be less than the threshold value.
  • the display driving circuit 230 may display the screen at the second refresh rate by providing the light emission signal to the display panel 320 according to the second cycle.
  • the electronic device 101 uses the period of the light emission signal for displaying the screen at the first refresh rate to reduce the difference in optical characteristics due to the change from the first refresh rate to the second refresh rate.
  • the screen can be displayed at the second refresh rate according to the determined cycle of the light emission signal.
  • the electronic device 101 can provide a seamless user experience through use of this cycle.
  • the electronic device 101 may include a display panel 320 including a plurality of pixels.
  • the electronic device 101 may include a display driving circuit 230.
  • the display driving circuit 230 provides an emission signal to the display panel 320 according to a first cycle to drive each of the plurality of pixels, thereby maintaining a first refresh rate. It can be configured to display the screen at a (refresh rate).
  • the display driving circuit 230 is responsive to identifying that the first refresh rate is changed to a second refresh rate that is less than the first refresh rate and is not a factor or divisor of the first refresh rate.
  • the screen may be displayed at the second refresh rate by providing the light emission signal to the display panel 320 according to a second cycle to drive each of the plurality of pixels.
  • the display driving circuit 230 in response to identifying that the first refresh rate is changed to a third refresh rate that is less than the first refresh rate and is a factor of the first refresh rate, displays the plurality of pixels. It may be configured to display the screen at the third refresh rate by providing the light emitting signal to the display panel 320 according to the first cycle to drive each. According to one embodiment, the difference value between the first period and the second period may be less than a threshold value.
  • the display driving circuit 230 determines that while the screen is displayed at the first refresh rate, the first refresh rate is smaller than the first refresh rate, is not a factor of the first refresh rate, and is different from the second refresh rate.
  • providing the light emitting signal to the display panel 320 according to a third cycle to drive each of the plurality of pixels to display the screen at the fourth refresh rate. can be configured.
  • the difference value between the first period and the third period may be less than the threshold value.
  • the reciprocal of the first refresh rate divided by the first period, the reciprocal of the second refresh rate divided by the second period, and the reciprocal of the third refresh rate divided by the first period are each , can be a natural number.
  • the duty ratio of the light emitting signal provided according to the first period may correspond to the duty ratio of the light emitting signal provided according to the second period.
  • the second period may be within a range between a first value obtained by subtracting a first threshold value from the first period and a second value obtained by adding the second threshold value to the first period.
  • the first threshold value and the second threshold value are each configured to provide a predetermined quality of an optical characteristic corresponding to an optical characteristic provided through the plurality of pixels based on the first refresh rate. It can be a value.
  • the electronic device 101 may further include a processor.
  • the display driving circuit 230 identifies that the first refresh rate is changed to the second refresh rate by obtaining a signal indicating a change from the first refresh rate to the second refresh rate from the processor. It can be configured to do so.
  • the display driving circuit 230 identifies that the first refresh rate is changed to the third refresh rate by obtaining a signal indicating that the first refresh rate is changed to the third refresh rate from the processor. It can be configured to do so.
  • the first refresh rate may be a first reference refresh rate.
  • the display driving circuit 230 provides the light emission signal to the display panel 320 according to a third cycle to drive each of the plurality of pixels, thereby achieving the first reference refresh rate, It may be configured to display a screen at a second reference refresh rate that is different from the second refresh rate and the third refresh rate and is not a factor of the first reference refresh rate and a factor of the second refresh rate.
  • the difference between the second period and the third period may be greater than or equal to the threshold value.
  • the electronic device 101 may include an illuminance sensor configured to obtain data indicating the illuminance around the electronic device.
  • the electronic device 101 includes a non-volatile memory configured to store reference data for a plurality of periods, which are a plurality of candidate periods of the light emitting signal, defined for the second refresh rate. can do.
  • the plurality of cycles may include the second cycle, the third cycle, and the fourth cycle.
  • the difference value between the first period and the third period may be greater than or equal to the threshold value.
  • the difference value between the first period and the fourth period may be less than the threshold value.
  • the difference value between the first period and the second period may be smaller than the difference value between the first period and the fourth period.
  • the display driving circuit 230 is configured to drive each of the plurality of pixels in the second period, the third period, and may be configured to display the screen at the second refresh rate by providing the light emitting signal to the display panel 320 according to any one of the fourth cycle.
  • the display driving circuit 230 is configured to drive each of the plurality of pixels in response to the data indicating the illuminance that is greater than or equal to the second reference illuminance and less than the first reference illuminance. It may be configured to display the screen at the second refresh rate by providing the light emitting signal to the display panel 320 according to any one of the cycle and the fourth cycle.
  • the display driving circuit 230 is configured to drive each of the plurality of pixels in the second period and the third period in response to the data indicating the illuminance that is less than the second reference illuminance. , and may be configured to display the screen at the second refresh rate by providing the light emitting signal to the display panel 320 according to the second cycle of the fourth cycle.
  • the display driving circuit 230 may be configured to obtain the data through the processor.
  • the display driving circuit 230 is in response to identifying that the first refresh rate is changed to the second refresh rate while the screen is displayed according to a luminance that is greater than or equal to the first reference luminance at the first refresh rate. , it may be configured to display the screen at the second refresh rate by providing the light emitting signal to the display panel 320 according to any one of the second cycle, the third cycle, and the fourth cycle.
  • the display driving circuit 230 changes the first refresh rate to the second refresh rate while the screen is displayed at the first refresh rate according to a luminance that is greater than or equal to the second reference luminance and less than the first reference luminance.
  • it may be configured to display the screen at the second refresh rate by providing the light emitting signal to the display panel 320 according to any one of the second cycle and the fourth cycle.
  • the display driving circuit 230 is responsive to identifying that the first refresh rate is changed to the second refresh rate while the screen is displayed according to a luminance that is less than the second reference luminance at the first refresh rate.
  • it can be configured to display the second playback path screen by providing the light emitting signal to the display panel 320 according to the second cycle among the second cycle, the third cycle, and the fourth cycle. there is.
  • the light emission signal may be a signal for adjusting the voltage of a source of a driving transistor for driving each of the plurality of pixels.
  • the light emission signal may be a signal for providing current to each of the plurality of pixels through the driving transistor.
  • the light emission signal may be a signal for a PWM (pulse width modulation) method.
  • the electronic device 101 may include an illuminance sensor 310 configured to acquire data indicating the illuminance around the electronic device.
  • the electronic device 101 may include a display panel 320 including a plurality of pixels.
  • the electronic device 101 may include a display driving circuit 230.
  • the display driving circuit 230 provides an emission signal to the display panel 320 according to a first cycle to drive each of the plurality of pixels, thereby maintaining a first refresh rate. It can be configured to display the screen at a (refresh rate).
  • the display driving circuit 230 is responsive to identifying that the first refresh rate is changed to a second refresh rate that is less than the first refresh rate and is not a factor or divisor of the first refresh rate.
  • the second cycle and the third cycle are provided to the display panel 320 to display a screen at the second refresh rate and to drive each of the plurality of pixels based on the data indicating the illuminance that is higher than the reference illuminance. It may be configured to display the screen at the second refresh rate by providing the light emitting signal to the display panel 320 according to any one of the following.
  • the difference value between the first period and the second period may be less than a threshold value.
  • the difference value between the first period and the third period may be greater than or equal to the threshold value.
  • the reciprocal of the first refresh rate divided by the first period, the reciprocal of the second refresh rate divided by the second period, and the reciprocal of the third refresh rate divided by the third period are each , can be a natural number.
  • the duty ratio of the light emitting signal provided according to the first period is the duty ratio of the light emitting signal provided according to the second period and the duty ratio of the light emitting signal provided according to the third period. We can respond to each rain.
  • the display driving circuit 230 in response to identifying that the first refresh rate is changed to a second refresh rate, determines that the reference illuminance is above the reference illuminance and is below another reference illuminance that is above the reference illuminance.
  • the light emitting signal is transmitted to the display panel 320 according to one of the second period and the fourth period assigned to the second refresh rate to drive each of the plurality of pixels based on the data representing the illuminance.
  • the second cycle, the third cycle, and the fourth cycle are used to display a screen at the second refresh rate and drive each of the plurality of pixels based on the data representing the illuminance that is greater than or equal to the other reference illuminance.
  • Displaying a screen at the second refresh rate by providing the light emitting signal to the display panel 320 according to any one of the cycles, and driving each of the plurality of pixels based on the data indicating the illuminance that is less than the reference illuminance
  • it may be configured to display the screen at the second refresh rate by providing the light emitting signal to the display panel 320 according to the second cycle among the second cycle, the third cycle, and the fourth cycle.
  • the difference value between the first period and the fourth period may be less than the threshold value.
  • the difference value between the first period and the second period may be smaller than the difference value between the first period and the fourth period.
  • the display driving circuit 230 in response to identifying that the first refresh rate is changed to a second refresh rate, displays the data representing the illuminance that is less than the reference illuminance and the first refresh rate. , by providing the light emitting signal to the display panel 320 according to the second period of the second period and the third period to drive each of the plurality of pixels based on the luminance of the screen, which is less than the reference luminance.
  • the second period and the third period to display a screen at the second refresh rate and drive each of the plurality of pixels based on the data representing the illuminance that is higher than the reference illuminance and the luminance that is higher than the reference luminance. It may be configured to display the screen at the second refresh rate by providing the light emission signal to the display panel 320 according to one of the options.
  • an electronic device may include a display panel including a plurality of pixels and a display driving circuit.
  • the display driving circuit displays a screen at a first refresh rate by providing a light emitting signal to the display panel according to a first cycle to drive each of the plurality of pixels, and the first refresh rate is less than the first refresh rate.
  • the light emitting signal is provided to the display panel according to a second cycle to drive each of the plurality of pixels to the second refresh rate.
  • the screen In response to displaying a screen and identifying that the first refresh rate is changed to a third refresh rate that is less than the first refresh rate and is a factor of the first refresh rate, in the first period to drive each of the plurality of pixels Accordingly, the screen is configured to display the screen at the third refresh rate by providing the light emission signal to the display panel, and the difference between the first cycle and the second cycle is less than a threshold value.
  • the electronic device of the first example includes a non-volatile memory configured to store reference data for a plurality of periods, which are a plurality of candidate periods of the light emitting signal, defined for the second refresh rate. Includes more.
  • the plurality of cycles include the second cycle, the third cycle, and the fourth cycle.
  • the difference value between the first period and the third period is greater than or equal to the threshold value.
  • the difference value between the first period and the fourth period is less than the threshold value.
  • the difference value between the first period and the second period is smaller than the difference value between the first period and the fourth period.
  • the display driving circuit in response to identifying that the first refresh rate is changed to the second refresh rate while the screen is displayed at the first refresh rate according to a luminance greater than or equal to a first reference luminance, performs the second period , displaying a screen at the second refresh rate by providing the light emitting signal to the display panel according to any one of the third cycle and the fourth cycle, and the screen is greater than or equal to the second reference luminance and the first reference
  • the display panel in response to identifying that the first refresh rate is changed to the second refresh rate while being displayed at the first refresh rate according to a luminance less than the luminance, the display panel according to either the second period or the fourth period displaying a screen at the second refresh rate by providing the light emitting signal to the screen, and changing the first refresh rate to the second refresh rate while the screen is displayed at the first refresh rate according to a luminance less than the second reference luminance.
  • the screen is configured to display the screen at the second refresh rate by providing the light emitting signal to the display panel according to the second cycle.
  • the electronic device of the first example includes an illuminance sensor configured to obtain data representing the illuminance around the electronic device, and a plurality of candidate periods of the light emission signal defined for the second refresh rate. , and further includes a non-volatile memory configured to store reference data for a plurality of periods.
  • the plurality of cycles include the second cycle, the third cycle, and the fourth cycle.
  • the difference value between the first period and the third period is greater than or equal to the threshold value.
  • the difference value between the first period and the fourth period is less than the threshold value.
  • the difference value between the first period and the second period is smaller than the difference value between the first period and the fourth period.
  • the display driving circuit is configured to drive each of the plurality of pixels in the second period, the third period, and the fourth period in response to the data indicating that the illuminance is greater than or equal to the first reference illuminance.
  • Displaying a screen at the second refresh rate by providing the light emitting signal to the display panel according to any one of the following, and in response to the data indicating that the illuminance is less than the first reference illuminance and greater than or equal to the second reference illuminance ,
  • the screen is displayed at the second refresh rate by providing the light emitting signal to the display panel according to any one of the second cycle and the fourth cycle, and the illuminance is adjusted to the
  • display the screen at the second refresh rate by providing the light emitting signal to the display panel according to the second cycle to drive each of the plurality of pixels. It is composed.
  • the electronic device of the first example includes an illuminance sensor configured to obtain data representing the illuminance around the electronic device, and a plurality of candidate periods of the light emission signal defined for the second refresh rate. , and includes a non-volatile memory configured to store reference data for a plurality of periods.
  • the plurality of cycles include the second cycle, the third cycle, and the fourth cycle.
  • the difference value between the first period and the third period is greater than or equal to the threshold value.
  • the difference value between the first period and the fourth period is less than the threshold value.
  • the difference value between the first period and the second period is smaller than the difference value between the first period and the fourth period.
  • the display driving circuit in response to identifying that the first refresh rate is changed to the second refresh rate while the screen is displayed at the first refresh rate according to a luminance greater than or equal to a first reference luminance, and that the illuminance is changed to a second refresh rate. 1 Based on the data indicating greater than or equal to the reference illuminance, to the display panel according to any one of the second cycle, the third cycle, and the fourth cycle to drive each of the plurality of pixels.
  • a screen is displayed at the second refresh rate by providing the light emitting signal, and the first refresh rate is maintained while the screen is displayed at the first refresh rate according to a luminance that is greater than or equal to a second reference luminance and less than the first reference luminance.
  • each of the plurality of pixels In response to identifying that the first refresh rate has changed to the second refresh rate while displayed at a refresh rate, and based on the data indicating that the illuminance is less than the second reference illuminance, drive each of the plurality of pixels In order to do this, it is configured to display the screen at the second refresh rate by providing the light emission signal to the display panel according to the second cycle.
  • the electronic devices of the third example and the fourth example further include a processor, and the display driving circuit is configured to obtain the data through the processor.
  • the electronic device of any one of the previously numbered examples wherein the display driving circuit is configured to set the first refresh rate less than the first refresh rate while a screen is displayed at the first refresh rate.
  • the display driving circuit is configured to set the first refresh rate less than the first refresh rate while a screen is displayed at the first refresh rate.
  • the display driving circuit is configured to set the first refresh rate less than the first refresh rate while a screen is displayed at the first refresh rate.
  • the display driving circuit is configured to set the first refresh rate less than the first refresh rate while a screen is displayed at the first refresh rate.
  • the display driving circuit is configured to set the first refresh rate less than the first refresh rate while a screen is displayed at the first refresh rate.
  • any one of the previously numbered examples is provided, wherein the reciprocal of the first refresh rate is divided by the first period, the reciprocal of the second refresh rate is divided by the second period, and Each value obtained by dividing the reciprocal of the third refresh rate by the first period is a natural number.
  • any one of the previously numbered examples is provided, the electronic device further comprising a processor, and the display driving circuit converts the first refresh rate from the processor to the second refresh rate. Identifying that the first refresh rate is changed to the second refresh rate by obtaining a signal indicating a change, and obtaining a signal from the processor indicating changing the first refresh rate to the third refresh rate, wherein the first refresh rate is changed to the third refresh rate. and configured to identify a change to the third refresh rate.
  • an electronic device of any of the previously numbered examples wherein the first refresh rate is a first reference refresh rate, and the display driving circuit performs a third cycle to drive each of the plurality of pixels.
  • a second refresh rate is different from the first reference refresh rate, the second refresh rate, and the third refresh rate, and is not a factor of the first reference refresh rate, but is a factor of the second refresh rate. It is configured to display the screen at a reference refresh rate.
  • the difference value between the second period and the third period is greater than or equal to the threshold value.
  • any one of the previously numbered examples is provided, wherein the reciprocal of the first refresh rate is divided by the first period, the reciprocal of the second refresh rate is divided by the second period, and Each value obtained by dividing the reciprocal of the third refresh rate by the third period is a natural number.
  • an electronic device includes an illuminance sensor configured to acquire data representing the illuminance around the electronic device, a display panel including a plurality of pixels, and a display driving circuit, wherein the display driving circuit includes: Displaying a screen at a first refresh rate by providing a light emitting signal to the display panel according to a first cycle to drive each of the plurality of pixels, wherein the first refresh rate is less than the first refresh rate and is a factor of the first refresh rate.
  • the display panel In response to identifying a change to a second refresh rate other than Accordingly, the display panel is provided with the light emitting signal to display the screen at the second refresh rate, and to drive each of the plurality of pixels based on the data indicating that the illuminance is greater than or equal to the reference illuminance. It is configured to display the screen at the second refresh rate by providing the light emitting signal to the display panel according to any one of the second cycle and the third cycle allocated for the 2 refresh rate.
  • the difference value between the first period and the second period is less than a threshold value.
  • the difference value between the first period and the third period is greater than or equal to the threshold value.
  • an electronic device includes an illuminance sensor configured to acquire data representing the illuminance around the electronic device, a display panel including a plurality of pixels, and a display driving circuit, wherein the display driving circuit includes: Displaying a screen at a first refresh rate by providing a light emitting signal to the display panel according to a first cycle to drive each of the plurality of pixels, wherein the first refresh rate is less than the first refresh rate and is a factor of the first refresh rate.
  • the display panel according to the second period to display a screen at the second refresh rate by providing the light emitting signal and to drive each of the plurality of pixels based on the data indicating that the illuminance is greater than or equal to the other reference illuminance.
  • the display panel according to the second period to display a screen at the second refresh rate by providing the light emitting signal and to drive each of the plurality of pixels based on the data indicating that the illuminance is less than the reference illuminance. configured to display the screen at the second refresh rate by providing the light emitting signal to the user, wherein the difference value between the first period and the second period is greater than the difference value between the first period and the fourth period.
  • an electronic device includes a display panel including a plurality of pixels and a display driving circuit, wherein the display driving circuit operates the display according to a first cycle to drive each of the plurality of pixels.
  • the light is emitted to the display panel according to the second period to drive each of the plurality of pixels.
  • an electronic device of any one of the previously numbered examples is provided, and the light emitting signal is a signal for a pulse width modulation (PWM) technique.
  • PWM pulse width modulation
  • any one of the previously numbered examples is provided, wherein the light emission signal is a signal for adjusting the voltage of a source of a driving transistor for driving each of the plurality of pixels.
  • any one of the previously numbered examples is provided, where the light emitting signal is a signal for providing current to each of the plurality of pixels through the driving transistor.
  • any one of the previously numbered examples is provided, wherein the reciprocal of the first refresh rate divided by the first period and the reciprocal of the second refresh rate divided by the second period are respectively It is a natural number.
  • any one of the previously numbered examples is provided, wherein the duty ratio of the light emitting signal provided according to the first period is equal to the period of the light emitting signal provided according to the second period. respond.
  • any one of the previously numbered examples is provided, wherein the duty ratio of the light emitting signal provided according to the first period is the duty ratio of the light emitting signal provided according to the second period. and a duty ratio of the light emitting signal provided according to the third period.
  • any one of the previously numbered examples is provided, wherein the second period is a first value obtained by subtracting a first threshold value from the first period and a second threshold value is added to the first period. It is within the range between the value plus the second value.
  • each of the first threshold value and the second threshold value is an optical device provided through the plurality of pixels based on the first refresh rate. It is a value to provide a predetermined quality of the optical characteristic corresponding to the characteristic.
  • a method of an electronic device including a display panel including a plurality of pixels wherein a light emitting signal is provided to the display panel according to a first period to drive each of the plurality of pixels.
  • displaying a screen at a first refresh rate by providing, and in response to identifying that the first refresh rate is changed to a second refresh rate that is less than the first refresh rate and is not a factor of the first refresh rate, the plurality of pixels an operation of displaying a screen at the second refresh rate by providing the light emitting signal to the display panel according to a second cycle to drive each, wherein the first refresh rate is smaller than the first refresh rate and is a factor of the first refresh rate;
  • displaying a screen at the third refresh rate by providing the light emitting signal to the display panel according to the first cycle to drive each of the plurality of pixels.
  • the difference between the first period and the second period is less than a threshold value.
  • the method of the first example wherein the electronic device stores reference data for a plurality of periods, which are a plurality of candidate periods of the light emitting signal, defined for the second refresh rate. It further includes configured non-volatile memory.
  • the plurality of cycles include the second cycle, the third cycle, and the fourth cycle.
  • the difference value between the first period and the third period is greater than or equal to the threshold value.
  • the difference value between the first period and the fourth period is less than the threshold value.
  • the difference value between the first period and the second period is smaller than the difference value between the first period and the fourth period.
  • the method in response to identifying that the first refresh rate is changed to the second refresh rate while a screen is displayed at the first refresh rate according to a luminance greater than or equal to a first reference luminance, the second period, the An operation of displaying a screen at the second refresh rate by providing the light emitting signal to the display panel according to any one of the third cycle and the fourth cycle, wherein the screen has a luminance greater than or equal to the second reference luminance and the first reference luminance.
  • the display panel In response to identifying that the first refresh rate is changed to the second refresh rate while being displayed at the first refresh rate according to a luminance less than the luminance, the display panel according to either the second period or the fourth period an operation of displaying a screen at the second refresh rate by providing the light emitting signal to In response to identifying the change, displaying the screen at the second refresh rate by providing the light emitting signal to the display panel according to the second cycle.
  • the method of the first example is provided, wherein the electronic device includes an illuminance sensor configured to obtain data representing an illuminance around the electronic device, and It further includes a non-volatile memory configured to store reference data for a plurality of periods, which are a plurality of candidate periods.
  • the plurality of cycles include the second cycle, the third cycle, and the fourth cycle.
  • the difference value between the first period and the third period is greater than or equal to the threshold value.
  • the difference value between the first period and the fourth period is less than the threshold value.
  • the difference value between the first period and the second period is smaller than the difference value between the first period and the fourth period.
  • the method may further include, in response to the data indicating that the illuminance is greater than or equal to a first reference illuminance, any of the second period, the third period, and the fourth period to drive each of the plurality of pixels. an operation of displaying a screen at the second refresh rate by providing the light emitting signal to the display panel according to one of the following, and in response to the data indicating that the illuminance is less than the first reference illuminance and greater than or equal to the second reference illuminance , an operation of displaying a screen at the second refresh rate by providing the light emission signal to the display panel according to any one of the second cycle and the fourth cycle to drive each of the plurality of pixels, and the illuminance In response to the data indicating that is less than the second reference illuminance, displaying the screen at the second refresh rate by providing the light emitting signal to the display panel according to the second cycle to drive each of the plurality of pixels. It further includes a display operation.
  • the method of the first example is provided, wherein the electronic device includes an illuminance sensor configured to obtain data indicative of an illuminance around the electronic device, and and a non-volatile memory configured to store reference data for a plurality of periods, which are a plurality of candidate periods.
  • the plurality of cycles include the second cycle, the third cycle, and the fourth cycle.
  • the difference value between the first period and the third period is greater than or equal to the threshold value.
  • the difference value between the first period and the fourth period is less than the threshold value.
  • the difference value between the first period and the second period is smaller than the difference value between the first period and the fourth period.
  • the method in response to identifying that the first refresh rate is changed to the second refresh rate while a screen is displayed at the first refresh rate according to a luminance that is greater than or equal to a first reference luminance, and that the illuminance is changed to the second refresh rate according to the first reference luminance. Based on the data indicating greater than or equal to the illuminance, the light is emitted to the display panel according to any one of the second cycle, the third cycle, and the fourth cycle to drive each of the plurality of pixels.
  • each of the plurality of pixels and displaying a screen at the second refresh rate In response to identifying that the first refresh rate changes to the second refresh rate while being displayed at a first refresh rate, and based on the data indicating that the illuminance is less than the second reference illuminance, each of the plurality of pixels and displaying a screen at the second refresh rate by providing the light emitting signal to the display panel according to the second cycle to drive .
  • the method of the third example and the fourth example is provided, wherein the electronic device further includes a processor, and the method further includes an operation of acquiring the data through the processor.
  • the fourth refresh rate is provided by providing the light emitting signal to the display panel according to a third cycle to drive each of the plurality of pixels. It further includes an operation of displaying the screen. The difference value between the first period and the third period is less than the threshold value.
  • a method of any of the previously numbered examples comprising: the reciprocal of the first refresh rate divided by the first period, the reciprocal of the second refresh rate divided by the second period, and the reciprocal of the second refresh rate divided by the second period.
  • the reciprocal of the refresh rate divided by the first period is each a natural number.
  • a method of any one of the previously numbered examples is provided, wherein the electronic device further includes a processor, and the method includes changing the first refresh rate to the second refresh rate from the processor. Identifying that the first refresh rate is changed to the second refresh rate by obtaining a signal indicating that the first refresh rate is changed to the second refresh rate, and obtaining a signal from the processor indicating that the first refresh rate is changed to the third refresh rate, wherein the first refresh rate is changed to the third refresh rate. It further includes an operation of identifying a change to the third refresh rate.
  • a method of any of the previously numbered examples comprising: driving each of the plurality of pixels according to a third period.
  • a second reference refresh rate is set, which is different from the first reference refresh rate, the second refresh rate, and the third refresh rate, and is not a factor of the first reference refresh rate, but is a factor of the second refresh rate.
  • the difference value between the second period and the third period is greater than or equal to the threshold value.
  • a method of any one of the previously numbered examples comprising: the reciprocal of the first refresh rate divided by the first period, the reciprocal of the second refresh rate divided by the second period, and the second refresh rate.
  • the reciprocal of the refresh rate divided by the third period is each a natural number.
  • the method is a method of an electronic device including an illuminance sensor configured to acquire data representing the illuminance around the electronic device, and a display panel including a plurality of pixels, the method comprising: An operation of displaying a screen at a first refresh rate by providing a light emitting signal to the display panel according to a first cycle to drive each of the pixels, wherein the first refresh rate is smaller than the first refresh rate and a factor of the first refresh rate is in response to identifying a change to a second refresh rate, according to a second period allocated for the second refresh rate to drive each of the plurality of pixels based on the data indicating that the illuminance is lower than the reference illuminance.
  • displaying a screen at the second refresh rate by providing the light emitting signal to the display panel, and driving each of the plurality of pixels based on the data indicating that the illuminance is greater than or equal to the reference illuminance. and displaying a screen at the second refresh rate by providing the light emitting signal to the display panel according to any one of the second cycle and the third cycle allocated for the second refresh rate.
  • the difference value between the first period and the second period is less than a threshold value.
  • the difference value between the first period and the third period is greater than or equal to the threshold value.
  • the method is a method of an electronic device including a display panel including a plurality of pixels and an illuminance sensor configured to obtain data representing the illuminance around the electronic device, the method comprising: An operation of displaying a screen at a first refresh rate by providing a light emitting signal to the display panel according to a first cycle to drive each of the pixels, wherein the first refresh rate is smaller than the first refresh rate and a factor of the first refresh rate is In response to identifying a change to a second refresh rate, the plurality of pixels based on the data indicating that the illuminance is greater than or equal to a reference illuminance and less than another reference illuminance (the other reference illuminance is greater than the reference illuminance) an operation of displaying a screen at the second refresh rate by providing the light emitting signal to the display panel according to any one of the second cycle and the fourth cycle allocated for the second refresh rate to drive each of the The display panel according to any one of the second period, the
  • displaying a screen at the second refresh rate by providing the light emitting signal to the user, and driving each of the plurality of pixels based on the data indicating that the illuminance is less than the reference illuminance according to the second period. and displaying a screen at the second refresh rate by providing the light emitting signal to the display panel.
  • the difference value between the first period and the second period is smaller than the difference value between the first period and the fourth period.
  • the method is a method of an electronic device including a display panel including a plurality of pixels, the method comprising: operating the display panel according to a first cycle to drive each of the plurality of pixels. displaying a screen at a first refresh rate by providing a luminous signal, and in response to identifying that the first refresh rate is changed to a second refresh rate that is less than the first refresh rate and is not a factor of the first refresh rate, the reference illuminance Based on the data indicating that the luminance of the screen displayed at the smaller illuminance and the first refresh rate is less than the reference luminance, the light is emitted to the display panel according to the second period to drive each of the plurality of pixels.
  • the light emitting signal is a signal for a pulse width modulation (PWM) technique.
  • PWM pulse width modulation
  • the light emission signal is a signal for adjusting the voltage of a source of a driving transistor for driving each of the plurality of pixels.
  • the light emission signal is a signal for providing current to each of the plurality of pixels through the driving transistor.
  • a method of any one of the previously numbered examples wherein the reciprocal of the first refresh rate divided by the first period and the reciprocal of the second refresh rate divided by the second period are each a natural number. am.
  • a method of any one of the previously numbered examples wherein the duty ratio of the light emitting signal provided according to the first period corresponds to the period of the light emitting signal provided according to the second period. do.
  • a method of any one of the previously numbered examples is provided, wherein the duty ratio of the light emitting signal provided according to the first period is the duty ratio of the light emitting signal provided according to the second period, and Each corresponds to a duty ratio of the light emitting signal provided according to the third period.
  • a method of any one of the previously numbered examples is provided, wherein the second period is a first value obtained by subtracting a first threshold value from the first period and a second threshold value to the first period. It is within the range between the second value plus .
  • each of the first threshold value and the second threshold value is based on the first refresh rate and provides an optical characteristic provided through the plurality of pixels. It is a value to provide a predetermined quality of optical properties corresponding to .
  • Electronic devices may be of various types.
  • Electronic devices may include, for example, portable communication devices (e.g., smartphones), computer devices, portable multimedia devices, portable medical devices, cameras, wearable devices, or home appliances.
  • Electronic devices according to embodiments of this document are not limited to the above-described devices.
  • first, second, or first or second may be used simply to distinguish one element from another, and may be used to distinguish such elements in other respects, such as importance or order) is not limited.
  • One (e.g. first) component is said to be “coupled” or “connected” to another (e.g. second) component, with or without the terms “functionally” or “communicatively”.
  • any of the components can be connected to the other components directly (e.g. wired), wirelessly, or through a third component.
  • module used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and is interchangeable with terms such as logic, logic block, component, or circuit, for example. It can be used as A module may be an integrated part or a minimum unit of the parts or a part thereof that performs one or more functions. For example, according to one embodiment, the module may be implemented in the form of an application-specific integrated circuit (ASIC).
  • ASIC application-specific integrated circuit
  • Various embodiments of the present document are one or more instructions stored in a storage medium (e.g., built-in memory 136 or external memory 138) that can be read by a machine (e.g., electronic device 101). It may be implemented as software (e.g., program 140) including these.
  • a processor e.g., processor 120
  • the one or more instructions may include code generated by a compiler or code that can be executed by an interpreter.
  • a storage medium that can be read by a device may be provided in the form of a non-transitory storage medium.
  • 'non-transitory' only means that the storage medium is a tangible device and does not contain signals (e.g. electromagnetic waves), and this term refers to cases where data is semi-permanently stored in the storage medium. There is no distinction between temporary storage cases.
  • Computer program products are commodities and can be traded between sellers and buyers.
  • a computer program product may be distributed in the form of a machine-readable storage medium (e.g., compact disc read only memory (CD-ROM)), through an application store (e.g., Play Store), or on two user devices (e.g., It can be distributed (e.g. downloaded or uploaded) directly between smart phones) or online.
  • a machine-readable storage medium e.g., compact disc read only memory (CD-ROM)
  • an application store e.g., Play Store
  • It can be distributed (e.g. downloaded or uploaded) directly between smart phones) or online.
  • at least a portion of the computer program product may be at least temporarily stored or temporarily created in a machine-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or a relay server.
  • each component (e.g., module or program) of the above-described components may include a single or plural entity, and some of the plurality of entities may be separately placed in other components. there is.
  • one or more of the components or operations described above may be omitted, or one or more other components or operations may be added.
  • multiple components eg, modules or programs
  • the integrated component may perform one or more functions of each component of the plurality of components in the same or similar manner as those performed by the corresponding component of the plurality of components prior to the integration. .
  • operations performed by a module, program, or other component may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, or omitted. Alternatively, one or more other operations may be added.

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Abstract

Un circuit d'attaque d'affichage d'un appareil électronique peut être conçu pour afficher un écran à une première fréquence de rafraîchissement en fournissant un signal d'émission à un panneau d'affichage en fonction d'une première période afin d'exciter chaque pixel d'une pluralité de pixels du panneau d'affichage. Le circuit d'attaque d'affichage peut être conçu pour afficher l'écran à une deuxième fréquence de rafraîchissement qui est inférieure à la première fréquence de rafraîchissement et qui n'est pas un facteur de la première fréquence de rafraîchissement en réponse à l'identification d'un passage de la fréquence de rafraîchissement de la première fréquence de rafraîchissement à la deuxième fréquence de rafraîchissement, l'écran étant affiché à la deuxième fréquence de rafraîchissement en fournissant le signal d'émission au panneau d'affichage en fonction d'une deuxième période afin d'exciter chaque pixel de la pluralité de pixels. Le circuit d'attaque d'affichage peut être conçu pour afficher l'écran à une troisième fréquence de rafraîchissement qui est inférieure à la première fréquence de rafraîchissement et qui est un facteur de la première fréquence de rafraîchissement en réponse à l'identification d'un passage de la fréquence de rafraîchissement de la première fréquence de rafraîchissement à la troisième fréquence de rafraîchissement, l'écran étant affiché à la troisième fréquence de rafraîchissement en fournissant le signal d'émission au panneau d'affichage en fonction de la première période afin d'exciter chaque pixel de la pluralité de pixels.
PCT/KR2023/005992 2022-08-02 2023-05-02 Appareil électronique et procédé de changement de fréquence de rafraîchissement Ceased WO2024029686A1 (fr)

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