CN119274481A

CN119274481A - Burn-in screen repair method, electronic device and readable storage medium

Info

Publication number: CN119274481A
Application number: CN202310835612.1A
Authority: CN
Inventors: 徐增
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2023-07-07
Filing date: 2023-07-07
Publication date: 2025-01-07

Abstract

The embodiment of the present application provides a burn-in screen repair method, an electronic device, and a computer-readable storage medium, which are applied to an electronic device including a display screen, wherein the display screen includes multiple light-emitting elements and a burn-in screen area, and the method includes: displaying a first application interface, wherein the first application interface includes an adjustment control; detecting a first operation of the adjustment control by a user; determining a first expected display brightness corresponding to the first operation; and based on the first expected display brightness, determining an excitation current of multiple light-emitting elements included in the display screen, wherein the multiple light-emitting elements include a first light-emitting element and a second light-emitting element, the first light-emitting element is located in the burn-in screen area, the second light-emitting element is located outside the burn-in screen area, and the first excitation current of the first light-emitting element and the second excitation current of the second light-emitting element are determined to be different. When the user observes that the display brightness of the entire display screen is the same during the process of adjusting the adjustment control, the burn-in screen repair is completed, and the use is convenient.

Description

Burn-in repair method, electronic device and readable storage medium

Technical Field

The application relates to the technical field of intelligent terminals, in particular to a burn-in repair method, electronic equipment and a readable storage medium.

Background

An organic light-emitting diode (OLED) is a diode device formed from a stack of multiple layers of organic nanofilms. In a display constructed from OLEDs, each OLED can emit light independently, such that each OLED in the OLED display experiences a different degree of attenuation in use. Because the organic material is electrically aged faster than the inorganic material, the burn-in phenomenon of the OLED display screen is more serious than that of a light-emitting diode (LED) display screen made of the inorganic material.

When the OLED display screen displays an image, the on-current of the OLED in the high-brightness area in the image is larger than that of the OLED in the low-brightness area, so that the OLED in the high-brightness area in the image A is easier to age than the OLED in the low-brightness area when a certain image A is still displayed for a long time. And at the same current, the display brightness of the aged OLED is lower than the unattenuated OLED display brightness. After the display screen finishes displaying the image A for a long time and after the display content is replaced, for example, when a pure-color interface is displayed, the display brightness of the OLED with different attenuation degrees on the display screen is different, so that the afterimage of the image A is generated and cannot be eliminated, and the phenomenon of screen burn-in is the phenomenon.

Whether the OLED display screen of the electronic equipment is easy to burn is related to the use situation of the electronic equipment. For example, compared with a mobile phone and a flat panel, the fixed icon scene of the computer interface has higher average brightness and longer daily use time in an office scene, and the burn-in probability of the OLED display screen can be improved when the OLED display screen is applied to the field of computer display. For another example, the silicon-based OLED display technology includes a mixed reality/augmented reality/virtual reality (MR/AR/VR) display technology, where the optical path loss is large, and the luminance of the OLED needs to be greatly improved to ensure the display effect (for example, the luminance needs to be improved to 5000nits, which is several times of the display luminance of devices such as a mobile phone, a tablet, a computer, etc.), which results in faster attenuation of the OLED and higher probability of screen burn. For another example, since the same image needs to be displayed for a long time and dynamic changes are small, the display screen of the delay camera using the OLED display screen is liable to burn. As another example, live applications typically have fixed icons and OLEDs that display the fixed icons for long periods of time are susceptible to decay, and thus live devices using OLED displays are also susceptible to burn-in.

In addition, in order to bring a more realistic display experience to the user, the OLED display screen is typically loaded with a display scheme with a high dynamic range (high-DYNAMIC RANGE, HDR), which can make the bright-dark contrast of the display screen larger, and both the upper and lower limit values of the brightness become larger. This will further increase the burn-in probability of the OLED display.

However, the display screen after screen burning is extremely difficult to repair, so that a user can only replace the display screen, and extremely high cost is generated. Therefore, how to repair the burned-in OLED display without changing the display is a urgent problem to be solved.

Disclosure of Invention

The embodiment of the application provides a screen burn repairing method, electronic equipment and a computer readable storage medium, which are convenient for a user to carry out screen burn repairing by providing screen burn repairing software for the user, and the user can immediately complete screen burn repairing by using the screen burn repairing software.

Some embodiments of the application provide a burn-in repair method. The application is described in terms of several aspects, embodiments and advantages of which can be referenced to one another.

In a first aspect, the application provides a burn-in repair method applied to electronic equipment comprising a display screen, wherein the display screen comprises a plurality of light emitting elements and a burn-in area, the method comprises the steps of displaying a first application interface, detecting first operation of a user on the adjustment control, determining first expected display brightness corresponding to the first operation, and determining excitation current of the display screen comprising the plurality of light emitting elements based on the first expected display brightness, wherein the plurality of light emitting elements comprise a first light emitting element and a second light emitting element, the first light emitting element is located in the burn-in area, the second light emitting element is located outside the burn-in area, and the determined first excitation current of the first light emitting element and the determined second excitation current of the second light emitting element are different.

It can be understood that the first application is screen burn repair software, and can provide a first application interface (i.e. screen burn repair interface) for a user, and an adjustment control for adjusting the screen burn repair strength is arranged in the repair interface. By acquiring the operation of the user on the adjustment control, the electronic device can generate a first expected display brightness (for example, a first brightness value L (t)) corresponding to the adjustment control in real time, and because the display brightness of the OLED and the excitation current are in a linear relationship, the excitation current for exciting each OLED in the OLED display screen can be determined according to the first expected display brightness, and the excitation current corresponding to each OLED is adopted to excite each OLED. The brightness of the OLED in the OLED display screen is changed, namely, a user can observe that the brightness of the first light-emitting element in the unburnt screen area and the brightness of the second light-emitting element in the screen burning area are changed (for example, the brightness of the whole OLED display screen is changed in the process of adjusting the adjusting control. When the user observes that the brightness of the display area where the screen burn happens is the same as the brightness of the display area where the screen burn does not happen in the process of adjusting the adjusting control, the screen burn repair is completed. Therefore, the condition that the special equipment is used for shooting the display screen to analyze the screen burning area is avoided, a user does not need to go to a repairing place with the special equipment, and the screen burning repairing can be carried out anytime and anywhere, so that the screen burning device is convenient to use.

It will be appreciated that the initial excitation current of the first light emitting element and the second light emitting element may be the same, e.g. the rated operating current of the display screen. After the electronic device detects the first operation of the adjustment control by the user, the excitation current of the first light-emitting element and the excitation current of the second light-emitting element change, for example, the excitation current of the first light-emitting element in the unburnt screen area is smaller than the excitation current of the second light-emitting element in the burn-in screen area, so that the display brightness of the first light-emitting element and the display brightness of the second light-emitting element tend to be consistent.

In a possible implementation of the first aspect, the first application interface includes a background layer, where the background layer includes any one of a white background layer, a red background layer, a green background layer, or a blue background layer.

That is, the first application interface may be covered with a background layer, for example, a white layer, a red layer, a green layer, or a blue layer, or may be a single gray-scale layer, a multi-level gray-scale layer, or any other picture layer, where the background layer may be freely set by a user. It can be understood that the background layer can improve the light-dark contrast of the screen burning area, highlight the screen burning area, and facilitate the user to determine the screen burning repair effect in real time through naked eyes. The screen burn area and the screen burn repairing effect can be seen by the user only with naked eyes, and the brightness analysis equipment is no longer necessary equipment for screen burn repairing. Furthermore, the burn-in repair site can be a designated repair site with brightness analysis equipment, and can also be a user home, and the repair site is not limited by the brightness analysis equipment any more, so that the burn-in repair becomes convenient. It can be understood that the image layer formed by the image background is positioned below the icon image layer corresponding to the adjustment control. Because the adjusting control is movable, the screen burning area with the background of the display picture protruding is not blocked.

In one possible implementation manner of the first aspect, determining the first expected display brightness corresponding to the first operation includes inputting a first repair intensity value corresponding to the first operation into the first model, and determining the first expected display brightness. It can be understood that the first operation is an adjustment operation of the adjustment control by the user, and the electronic device can determine a first repair intensity value corresponding to the first operation, further determine first expected display brightness according to the first repair intensity value, and further enable the display brightness regions of all OLEDs to be first expected display brightness, until the first expected display brightness is adjusted to be the first brightness value, so that the OLEDs in any use time tend to be the first brightness value, and repair the burn-in phenomenon.

In some embodiments, the first model may be a lifetime model, for example, a span exponential decay (THE STRETCHED exponential decay, SED) model may be used as the lifetime model, and the SED model may derive the decay equivalent curve of the OLED.

The model can be characterized by the following formulas (1.1), (1.2) and (1.3):

Wherein n is an acceleration factor related to the decay rate, is an empirical value, and is influenced by factors such as brightness, temperature, packaging effect and the like of the light-emitting device;

L _(t) is the display brightness value of the display unit at the time t, L ₀ is the initial brightness of the display unit;

t _1/2 is the half-life of the OLED, i.e. the time period during which the display brightness of the OLED decays to 50% of the original display brightness;

τ, β, C, K are all constant parameters of OLED lifetime, related to OLED materials, device structure and fabrication process, for example, related to structure of the light emitting material, arrangement of light emitting units, arrangement density and package structure, and can be determined by curve fitting.

In a possible implementation of the first aspect, the first repair strength value comprises any one of an acceleration factor related to a decay rate of the light emitting element, a plurality of constant parameters related to a lifetime of the light emitting element, wherein at least two parameters of the acceleration factor related to the decay rate of the light emitting element, the plurality of constant parameters related to the lifetime of the light emitting element have a first correspondence, wherein the first correspondence comprises a linear relationship.

It can be understood that the parameters affecting the display brightness value of the display unit at time t include at least the following five parameters:

(1) An acceleration factor related to a display luminance decay rate;

(2) τ, a specific decay time scale;

(3) The constant parameters determined by the OLED material, the device structure and the manufacturing process;

(4) Beta is constant parameters determined by OLED materials, device structures and manufacturing processes;

(5) And K is constant parameters determined by OLED materials, device structures and manufacturing processes.

Thus, by adjusting any one or more of the above-mentioned five parameters, which may be any one of n, τ, C, β, or K, for example, the display brightness of a single display unit at the current usage time may be adjusted. For example, the display brightness of a single display unit in the current use time can be increased to a first brightness value, so that the uniform display brightness of all display units of the display screen is realized, and the burn-in is repaired.

In a possible implementation of the first aspect, the adjustment control includes a control bar, a control panel, a control icon, or a physical button.

It will be appreciated that the adjustment control may take a variety of forms, such as a control bar, a control pad, a control icon, or a physical button, and that the adjustment control may be moved within the first application interface to avoid obscuring the burn-in area.

In some embodiments, the repair intensity value can be quickly adjusted by constructing the adjustment control in a control bar form, so that the screen burning can be quickly repaired.

In other embodiments, the control panel can be provided with a plurality of gears by constructing the adjustment control in the form of a control panel, so that a user can accurately adjust the repair intensity value with a plurality of gears, and further, the display brightness of the OLED is accurately adjusted by accurately adjusting the relevant parameters of the life model, thereby improving the accuracy of burn-in repair.

In still other embodiments, the adjustment control may also be a plurality of grouped icons, such as an add control and a drop control, which may be characterized by a "+" icon and a "-" icon for a drop control. The adjustment value of the first repair intensity value by the single-click increase control and the single-click decrease control by the user may be set. In some embodiments, the adjustment value of the single click adjustment control for adjusting the first repair intensity value is set to be lower than the specified value, so that a user can accurately adjust the first brightness value by a small amplitude, and further accurate repair of the burned screen is achieved.

In a possible implementation of the first aspect, the range of values of the first desired display brightness includes 0 to 10000 nits.

It is understood that the range of the first desired display brightness may be 0 to 10000 nits, so long as all the OLED display brightness on the screen tends to be uniform.

In some embodiments, the first desired display brightness may be 600 nits.

In one possible implementation of the first aspect, the first application interface includes a resume control, and the method further includes detecting a second operation of the resume control by the user, and restoring the brightness of the display screen to the brightness before the user does not adjust the adjustment control.

It will be appreciated that, when the lifetime model parameters are modified, a recovery control may be set on the first application interface in order to avoid damage to the display unit of the display screen caused by erroneous parameter modification. The restoration control is used for restoring the first restoration intensity value to an initial restoration intensity value and providing an entrance for restoring the initial parameter value of the life model for a user. Further, after the first repair intensity value is restored to the initial repair intensity value, the brightness of the display screen may be restored to before the user does not adjust the first adjustment control. In one possible implementation of the first aspect, restoring the brightness of the display screen to the initial brightness before the user does not adjust the adjustment control includes obtaining an initial repair intensity value of the first model, and inputting the initial repair intensity value to the first model to obtain the initial brightness.

It can be understood that the initial restoration intensity value is input into the first model, so that the initial brightness can be obtained, and further, the brightness of the display screen can be ensured to be restored before the user does not adjust the first adjustment control.

In some embodiments, the initial numerical parameters of the lifetime model may be pre-stored in a memory of the electronic device and may be stored in a preset format. For example, the initial parameters of the lifetime model may be written into a display screen configuration file or written into a display screen log file.

In a possible implementation of the first aspect, inputting the initial repairing intensity value to the first model to obtain the initial brightness includes inputting the initial repairing intensity value to the first model to obtain the second desired brightness, determining an excitation current of each light emitting element corresponding to the second desired brightness according to the second desired brightness, and exciting the light emitting element using the excitation current of each light emitting element corresponding to the second desired brightness to obtain the initial brightness.

It will be appreciated that the second desired luminance may be calculated after the initial repair intensity value is input into the first model, where the second desired luminance is linearly related to the excitation current, so that the excitation current of each corresponding light emitting element may be obtained based on the second desired luminance, and each light emitting element may be excited by the excitation current, so that the light emitting element may be displayed as the initial luminance.

In a second aspect, the application also provides an electronic device comprising one or more processors, one or more memories, the one or more memories storing one or more programs which, when executed by the one or more processors, cause the electronic device to perform any of the possible burn-in repair methods of the first aspect described above.

In a third aspect, the present application also provides a computer readable storage medium having stored thereon instructions which, when executed on a computer, cause the computer to perform any one of the possible burn-in repair methods of the first aspect described above.

In a fourth aspect, embodiments of the present application disclose a computer program product comprising instructions which, when run on a computer, cause the computer to perform any of the possible burn-in repair methods of the first aspect described above.

Drawings

FIGS. 1A and 1B show a schematic view of a burn-in scenario;

FIGS. 2A-2B are interface diagrams illustrating burn-in repair according to some embodiments of the application;

FIG. 3 illustrates a burn-in repair control bar and a repair interface schematic according to some embodiments of the application;

FIG. 4 illustrates a burn-in repair control panel and a repair interface schematic in accordance with some embodiments of the application;

FIG. 5 illustrates a schematic diagram of a burn-in repair control icon and a repair interface, according to some embodiments of the application;

FIG. 6 is a schematic flow chart of a burn-in repair method according to some embodiments of the application;

FIG. 7 illustrates a burn-in repair interface diagram for obtaining a user repair operation via a control bar, according to some embodiments of the application;

FIG. 8 illustrates a burn-in repair interface diagram for acquiring a user repair operation via a control panel, according to some embodiments of the application;

FIG. 9 illustrates a burn-in repair interface diagram for acquiring a user repair operation via a control icon, according to some embodiments of the application;

FIG. 10 illustrates a burn-in repair interface diagram for acquiring a user repair operation via a volume key, according to some embodiments of the application;

FIG. 11 is a schematic diagram showing a plurality of display luminance curves of a display unit according to some embodiments of the present application;

FIG. 12 illustrates an interface diagram of another burn-in repair according to some embodiments of the application;

FIG. 13 illustrates a hardware architecture diagram of an electronic device 100, according to some embodiments of the application;

fig. 14 illustrates a software architecture block diagram of an electronic device 100, according to some embodiments of the application.

Detailed Description

Illustrative embodiments of the application include, but are not limited to, burn-in repair methods, electronic devices, computer-readable storage media, and the like.

In order to facilitate understanding of the solutions in the embodiments of the present application, some concepts and terms related to the embodiments of the present application are explained below.

(1) An organic light-emitting diode (OLED) Display screen (OLED Display) is a Display screen with OLED as a light-emitting element. The display principle of the OLED display screen is to drive each OLED by a power supply. The brightness or intensity of light emitted by an OLED depends on the properties of the luminescent material and the magnitude of the applied current, the greater the current, the higher the brightness of the light for the same OLED, the more the excitation current is linear with the emitted brightness. Therefore, the brightness and gray scale of the OLED display screen may be adjusted by the direct current of the sub-display units corresponding to the three color channels red (R), green (G), and blue (B).

In order to make the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be described in detail below with reference to the accompanying drawings and specific embodiments of the present application.

Fig. 1A and 1B show a schematic view of a burn-in scene.

As shown in fig. 1A, when an application program is started, the mobile phone 00 displays an interface 01, and functional controls 01A, 01b and 01c are set in the interface 01 and can be used for acquiring an interaction request of a user on the interface 01. For example, the click operation of the user on 01a may be obtained, and then the mobile phone 00 obtains the collection request of the user on the interface 01, the click operation of the user on 01b may be obtained, and then the mobile phone 00 obtains the comment call request of the user on the interface 01, and the click operation of the user on 01c may be obtained, and then the mobile phone 00 obtains the appreciation request of the user on the interface 01.

When the mobile phone 00 stays on the interface 01 for a long time, the display brightness of the area of the interface 01 except for the controls 01a, 01b and 01c is low (for example, black), the display brightness of the controls 01a, 01b and 01c is high (for example, pure white), the on-state current of the display units of the controls 01a, 01b and 01c is high, so that the organic luminescent material is aged, the brightness is attenuated, and finally the screen burning phenomenon is caused.

After the burn-in phenomenon occurs, referring to fig. 1B, when the mobile phone 00 enters an interface 02 different from the interface 01, afterimages 02a, 02B, and 02c are displayed in the interface 02. It can be understood that, the ghost 02a is a luminance degradation display area of the control 01a, the ghost 02b corresponds to a luminance degradation display area of the control 01b, and the ghost 02c corresponds to a luminance degradation display area of the control 01 c. At this time, the brightness of the afterimages 02a, 02b, and 02c is always lower than that of the surrounding area, regardless of what is displayed in the interface 02, and the display of the interface 02 is affected. Thus, the burn-in phenomenon may seriously affect the user's use experience.

At present, a user needs to repair equipment with a burned screen, and needs to bring the equipment to a professional display screen repair place to repair the burned screen. For example, a special device (such as an imaging brightness meter) needs to be used for shooting a burned electronic device display screen, so as to obtain a burned display screen image, and analyzing the burned display screen image to obtain a burned area. The burn-in area is then brightness enhanced by a professional to repair the burn-in. Therefore, it is inconvenient for the user to repair the burn-in.

In addition, the above-mentioned process of determining the burn-in area takes a long time, for example, a special device is required to analyze the gray value of the burned-in display screen image pixel by pixel, which results in an excessively long analysis time. In addition, some screen burning areas have no clear boundary, for example, a shooting object of delayed shooting usually has small-amplitude dynamic change, so that the boundary of the screen burning area is fuzzy, even if a special device is used for shooting a screen burning display screen, an accurate screen burning area is still difficult to analyze, and even if the special device is used, the screen burning repairing effect is not accurate.

Therefore, in order to solve the above problems, the present application provides a burn-in repair method, which is convenient for a user to perform burn-in repair by providing the user with a burn-in repair software, and the user can complete the burn-in repair in real time by using the burn-in repair software. Specifically, the burn-in repair software can provide a repair interface for a user, and an adjusting control used for adjusting the burn-in repair strength is arranged in the repair interface. Through obtaining the operation of the user on the adjustment control, the electronic equipment can generate the screen burning restoration intensity value corresponding to the adjustment control in real time, determine the excitation current for exciting each OLED in the OLED display screen based on the screen burning restoration intensity value, and respectively excite each OLED by adopting the excitation current corresponding to each OLED, so that the luminous brightness of the OLED in the OLED display screen changes, namely, the brightness change of the whole OLED display screen can be observed by the user in the process of adjusting the adjustment control. When the user observes that the brightness of the display area where the screen burn happens is the same as the brightness of the display area where the screen burn does not happen in the process of adjusting the adjusting control, the screen burn repair is completed.

It will be appreciated that, corresponding to different burn-in repair intensity values, different display brightness values may be set, for example, a user adjusts the adjustment control to the first repair intensity value, which indicates that the display brightness needs to be adjusted to the first brightness value.

Specifically, the screen burn-in repair software is arranged in an electronic device comprising a display screen and is used for repairing the display screen of the electronic device. When the electronic equipment detects that a user starts operation on the screen burn repair software, the screen burn repair software is called, a repair interface is provided for the user, and an adjusting control used for adjusting the screen burn repair intensity is arranged in the repair interface. It can be appreciated that if the electronic device detects that the user adjusts the adjustment control, the adjusted burn-in repair intensity value can be determined, and the electronic device can adjust the OLED brightness based on the adjusted burn-in repair intensity value.

Thus, in some embodiments of the present application, a lifetime model may be used to determine the brightness of the OLED at different burn-in repair intensity values, and model parameters of the lifetime model may be related to the burn-in repair intensity values, and thus the corresponding excitation current may be determined based on the adjusted brightness of the OLED. For example, a burn-in repair intensity value may be input into the lifetime model, and a luminance value of the OLED at the current usage time may be obtained. Since the display brightness and the excitation current of the OLED have a linear relationship, determining the display brightness of the organic light emitting diode can determine the corresponding excitation current. Therefore, the electronic device knows the display brightness required by the OLED, and the excitation current values of all the OLED in the whole display screen can be obtained. Therefore, in the process of repairing the screen burning area, a user can continuously observe the real-time repairing effect of the screen burning area in real time, the screen burning repairing visualization can enable the time consumption of screen burning repairing to be short, special equipment for shooting the screen burning display screen is not needed, the screen burning repairing can be completed without analyzing the screen burning area, and the screen burning repairing device is convenient to use.

In some embodiments, the OLED on the display screen may be divided into a plurality of display units, and the display units may include a predetermined number of organic light emitting diodes, for example, a single display unit may include one organic light emitting diode, or may include two or more organic light emitting diodes, which is not limited herein. For example, a×b organic light emitting diodes may be configured as a display unit, such as 1*1, 2×2, 3*3, 4*4, 2×4, 3*5, each of which independently determines the excitation current. Furthermore, the excitation current of the preset number of organic light emitting diodes can be directly calculated, but not the excitation current of a single OLED, so that the data calculation amount is reduced, and the burn-in repair is more efficient.

For example, the adjustment of the display brightness of a single display unit may be achieved by adjusting parameters in the lifetime model of each display unit. For example, the display brightness of a single display unit in the current use time can be increased to a first brightness value, so that the uniform display brightness of all display units of the display screen is realized, and the burn-in is repaired.

It is understood that if the adjusted lifetime model is used to control the single display unit to emit light, the single display unit displays the first luminance value no matter how long the single display unit is used. Furthermore, after long-time use, the adjusted life model correspondingly compensates current for the display units with different use durations, so that all the display units display the first brightness value. Therefore, after the screen burn is repaired by using the life model, the screen burn phenomenon is not easy to generate again.

It can be appreciated that the electronic device to which the burn-in repair method provided by the embodiment of the present application is applicable may include, but is not limited to, mobile phones, folding screen mobile phones, tablet computers, desktop computers, laptops, handheld computers, netbooks, and electronic devices with display screens such as augmented reality (augmented reality, AR)/Virtual Reality (VR) devices, smart televisions, smart watches, and vehicle-mounted display screens.

The repairing interface for realizing the burn-in repairing by adjusting the life model parameters is described in detail below with reference to the related drawings.

Fig. 2A-2B illustrate interface diagrams of burn-in repair according to some embodiments of the application.

Referring to fig. 2A, electronic device 100 is burned off, and an area 011 of burned off is displayed when interface 201 is displayed. At this time, the electronic device 100 may detect the operation 202 of the volume key 203 by the user, and in response to the operation 202, adjust the specified parameters in the lifetime model of each display unit of the display interface 201 to obtain a first luminance value, so that the display luminance of all the display units on the display screen tends to the first luminance value, and obtain the interface 204 with uniform luminance shown in fig. 2B.

It will be appreciated that the volume key 203 has a volume up key and a volume down key, and the operation 202 may be clicking the volume up key or clicking the volume down key. Therefore, clicking the volume increasing key can adjust the life model parameters to increase the screen burn repair strength, and clicking the volume decreasing key can adjust the life model parameters to decrease the screen burn repair strength. In some embodiments, a single click may be set to adjust the value of the lifetime model, e.g., one click of the volume up button may increase the brightness of 2nit for display units in the lifetime model where burn-in exists until the brightness of all display units for the duration of use is uniform. Because the adjustment value generated by single click is smaller, the screen burning repair strength can be accurately adjusted, and the screen burning can be quickly and accurately repaired.

It will be appreciated that the above-described operation 202 may be implemented by the physical buttons shown in fig. 2A and 2B, or by virtual controls. Therefore, an adjusting control capable of controlling the parameters of the life model can be arranged on the screen burn-in repair interface, the adjusting control can be used for adjusting the parameters of the life model of each display unit, and the adjusting control can be moved randomly on the interface so as to avoid shielding the screen burn-in area.

The adjustment controls described above are described in detail below in conjunction with fig. 3, 4, and 5.

Referring to FIG. 3, the adjustment control may be a control bar 301 that may be arbitrarily moved across interface 201 to avoid obscuring the burn-in area 011. In some implementations, the user can drag control bar 301 to adjust the repair intensity, e.g., to obtain a first repair intensity value, and input the first repair intensity value into the life model to adjust a parameter associated with the life model to determine the first brightness value. For example, when the user drags control bar 301 to the right, the burn-in repair intensity may be increased, thereby increasing the first brightness value. The display brightness of each display unit with different use time is raised to the first brightness value, so that the display brightness of the display screen tends to the first brightness value, and the interface 204 with uniform brightness shown in fig. 2B can be obtained. By constructing the adjustment control in the control bar form, the repair intensity value can be quickly adjusted, and the quick repair of the burned screen is realized.

Referring to FIG. 4, the adjustment control may be a control pad 401 that may be arbitrarily moved over interface 201 to avoid obscuring the burn-in area 011. In some embodiments, the user may rotate the control panel 401 to adjust the repair strength, for example, to obtain a first repair strength value, and input the first repair strength value into the lifetime model to adjust the relevant parameters of the lifetime model, to obtain a first brightness value, and further, the display brightness of each display unit tends to the first brightness value. For example, when the user rotates the control dial 401 in a clockwise direction, an increase in burn-in repair intensity may be characterized to increase the first brightness value and cause the display brightness to tend toward the first brightness value. And thus an interface 204 of uniform brightness as shown in fig. 2B can be obtained.

In some embodiments, the control dial 401 may have multiple gears. As shown in fig. 4, the keypad 401 may have an X1, an X2, an X3, an X4, an X5, an X6, an X7, and an X8, respectively, for characterizing different burn-in repair strengths. Therefore, the repair intensity value can be accurately adjusted in multiple gears by constructing the adjusting control in a control panel mode, and further the first brightness value is accurately adjusted by accurately adjusting the related parameters of the life model, so that the display brightness of the display screen tends to the first brightness value. The accuracy of burn-in repair is improved.

In some implementations, the adjustment control may also be a plurality of grouped icons. The plurality of adjustment controls are described in connection with the associated figures.

Referring to fig. 5, the adjustment controls may include an increase control 501 and a decrease control 502, with the increase control 501 being characterized by a "+" icon and the decrease control 502 being characterized by a "-" icon. And the icons may be arbitrarily moved on the interface 201 to avoid obscuring the burn-in area 011. Here, the user may click on the increase control 501 and the decrease control 502 to adjust the repair intensity value, for example to the first repair intensity value. The first repair intensity value is a parameter in the life model, and then the first repair intensity value is input into the life model to determine a first brightness value, so that the display brightness of all the OLEDs on the display screen tends to the first brightness value. For example, when the user clicks the increase control 501 or the decrease control 502, the first repair strength value is adjusted in real-time, e.g., the increase control 501 characterizes the adjust life model parameters to increase repair strength, and the decrease control 502 characterizes the adjust life model parameters to decrease repair strength. And thus an interface 204 of uniform brightness as shown in fig. 2B can be obtained.

Further, the adjustment value of the first repair intensity value by the single-click increase control and the single-click decrease control may be set. In some embodiments, the adjustment value of the single click adjustment control for adjusting the first repair intensity value is set to be lower than the specified value, so that a user can accurately adjust the first brightness value by a small amplitude, and further accurate repair of the burned screen is achieved.

Based on the above fig. 2A, fig. 3, fig. 4, and fig. 5, it can be known that the electronic device 100 can determine the first repair intensity value adjusted by the user through adjusting the control or the physical key, and further input the first repair intensity value into the life model, so as to obtain the first brightness value. And determining the excitation current of each display unit according to the first brightness value and the service time of each display unit, so that the display brightness of each display unit on the interface is consistent.

For example, each display unit emits light using rated current excitation before the repair strength is not adjusted, and each display unit reduces display brightness with use time. Therefore, the different display units have different use times, and the display brightness is different. After the repair intensity is adjusted, the display brightness of all the display units needs to be adjusted to the first brightness value. Therefore, based on the first brightness value and the current brightness value corresponding to the rated excitation current under different use time, the brightness difference to be improved of different display units can be determined, further the current difference to be compensated for the current value is determined, and different excitation currents are formulated for the display units under different use time. So that the display brightness of each display unit on the interface is the first brightness value.

It can be understood that the above-mentioned setting manners of the adjustment control and the entity key are examples. For example, the adjustment control may be invoked on the burn-in repair interface by other means, such as a user may invoke the adjustment control from the burn-in repair interface using a preset gesture (e.g., tapping a cell phone/flat panel display, or initiating a spatial gesture during use of the MR/AR/VR device), without limitation.

Based on the repair interface schematic diagrams shown in fig. 2A to 5, the specific implementation process of the burn-in repair method provided by the application is described in detail below with reference to specific embodiments and related drawings.

Fig. 6 is a schematic flow chart of a burn-in repair method according to some embodiments of the application. It can be understood that the execution body of each step in the flowchart shown in fig. 6 may be the electronic device 100 described above, or other electronic devices, and the execution body of a single step will not be described in detail.

As shown in fig. 6, the interaction flow includes the following steps:

601, a user start operation to start a burn-in repair application is detected.

It can be understood that the above-mentioned user start operation may be a click operation on a screen burn repair application icon, etc., and when the electronic device detects the user start operation, the screen burn repair application may be invoked in response to the user start operation.

602, Loading a burn-in repair interface in response to a user start operation.

It will be appreciated that in response to a user initiated operation, a burn-in repair interface, such as a solid color interface, may be loaded to facilitate visual observation of the real-time burn-in repair effect by the user.

In some embodiments, the screen burn-in repair interface may be covered with a background layer, such as a white layer, a red layer, a green layer, or a blue layer, or may be a single gray-scale layer, a multi-level gray-scale layer, or any other picture layer. It can be understood that the background layer can improve the light-dark contrast of the screen burning area, highlight the screen burning area, and facilitate the user to determine the screen burning repair effect in real time through naked eyes. For example, when the blue organic light emitting diode is seriously aged, the screen burning area in the white layer, the red layer and the green layer is not obvious, and the screen burning area in the blue layer is very dark and has larger brightness difference with the surrounding area without screen burning, so that a user can conveniently distinguish the screen burning area and determine the real-time repair effect of the screen burning. The screen burn area and the screen burn repairing effect can be seen by the user only with naked eyes, and the brightness analysis equipment is no longer necessary equipment for screen burn repairing. Furthermore, the burn-in repair site can be a designated repair site with brightness analysis equipment, and can also be a user home, and the repair site is not limited by the brightness analysis equipment any more, so that the burn-in repair becomes convenient.

It can be understood that the image layer formed by the image background is positioned below the icon image layer corresponding to the adjustment control. Because the adjusting control is movable, the screen burning area with the background of the display picture protruding is not blocked.

The background of the burn-in repair interface is described in detail below with reference to the accompanying drawings.

Fig. 7 illustrates a burn-in repair interface for acquiring a user repair operation through the control bar 301, fig. 8 illustrates a burn-in repair interface for acquiring a user repair operation through the control panel 401, fig. 9 illustrates a burn-in repair interface for acquiring a user repair operation through the control icon 501 and the control icon 502, and fig. 10 illustrates a burn-in repair interface for acquiring a user repair operation through the volume key 203.

It can be appreciated that the screen burn repair is started, and the screen burn repair interface can be provided for the user, so that the user can perform screen burn repair through any control or entity key of the electronic device 100 set on the screen burn repair interface. In order to accurately display the screen burning area, pure-color pictures with different colors can be preset to serve as the background of the screen burning repairing interface, and gradual-change pictures with different gray scales can be preset to serve as the background of the screen burning repairing interface.

7-10, A screen burn repair interface loaded with different controls or physical buttons is presented, and pure-color pictures of four colors of white, red, green and blue are matched as background layers of the screen burn repair interface, so that a screen burn area 702 can be displayed more clearly through interface backgrounds of the four colors respectively, and a user can observe the repair effect in real time.

For example, referring to fig. 7 to 10, the burn-in repair interfaces 701W, 801W, 901W, and 1001W are each on a white solid-color picture as a background, the burn-in repair interfaces 701R, 801R, 901R, and 1001R are on a red solid-color picture as a background layer, the burn-in repair interfaces 701G, 801G, 901G, and 1001G are on a green solid-color picture as a background layer, and the burn-in repair interfaces 701B, 801B, 901B, and 1001B are on a blue solid-color picture as a background layer. The solid-color pictures with different colors are used as the background picture layer of the burn-in repair interface, and after the burn-in area 702 is repaired, the solid-color picture layer background without residual shadows can be obtained for a user to confirm the burn-in repair effect. For example, the burn-in repair interfaces 701W, 801W, 901W, and 1001W may be repaired to obtain white layer backgrounds 701W ', 801W', 901W ', 1001W' without afterimage. For another example, after the burn-in repair interfaces 701R, 801R, 901R, and 1001R are repaired, the red layer backgrounds 701R ', 801R', 901R ', 1001R' without afterimage can be obtained. For another example, after the burn-in repair interfaces 701G, 801G, 901G, and 1001G are repaired, the green layer backgrounds 701G ', 801G', 901G ', and 1001G' without the ghost can be obtained. Also for example, after the burn-in repair interfaces 701B, 801B, 901B, and 1001B are repaired, blue layer backgrounds 701B ', 801B', 901B ', and 1001B' without afterimage can be obtained.

In some embodiments, in response to a user initiated operation, the electronic device 100 may default to loading a burn-in repair interface provided with a white background layer. When the electronic device 100 obtains the user modifying the background of the repair interface, the picture designated by the user may be used as the background layer of the burn-in repair interface, for example, the red, green and blue solid-color pictures illustrated in fig. 7 to 10 are used as the background layer of the burn-in repair interface.

It can be understood that, since the burn-in repair is to increase the repair intensity of the display brightness or decrease the repair intensity of the display brightness by adjusting the parameters of the lifetime model, a first brightness value is obtained, and corresponding current compensation is provided for all display units with different use times based on the first brightness value, so as to increase the display brightness of all display units until the first brightness value is reached, without judging the specific boundary position of the burn-in area. Therefore, pure-color pictures with different colors can be loaded to serve as a background picture layer of the screen burning repair interface, and judgment of the screen burning area is not affected.

In some embodiments, the brightness analysis device may be further configured to obtain the display brightness of the display screen in real time, for example, using an imaging brightness meter to obtain the display brightness of the burn-in area in real time, where the burn-in repair may be completed after determining that the display brightness is the first brightness value.

Further, it can be understood that if only the brightness analysis device is used to capture the image displayed by the display screen, the gray level of the pixels in the image is analyzed to determine the screen burning area, and for the screen burning condition without an explicit boundary, misjudgment on the screen burning area may occur, so that the screen burning repair on the boundary of the screen burning area cannot be realized. In the application, since current compensation can be performed on each display unit based on the life model until all the display units have the same display brightness, the burn-in area without an explicit boundary can be accurately repaired.

603, Obtaining an adjustment operation of the user on the adjustment control on the burn-in repair interface.

It is understood that the adjustment operation may be an interactive operation of the user on the burn-in repair interface, such as dragging a control bar, rotating a control panel, or clicking a control icon.

In other embodiments, the adjustment control may be associated with the physical key, so that the repair strength value may be directly adjusted by acquiring the touch operation of the user on the physical key.

It will be appreciated that the specific example of the above adjustment operation may refer to the user operation shown in fig. 2A to 5, and will not be further described herein.

A first repair strength value is determined based on the adjustment operation 604.

It can be understood that, in response to the adjustment operation of the user, the repair intensity value corresponding to the adjustment operation can be determined, and then the display brightness of all the OLEDs is adjusted according to the repair intensity value, so that the OLEDs at any use time display the same brightness.

605, Inputting the first repair intensity value to the life model to determine a first luminance value.

In some embodiments, a extensive exponential decay (THE STRETCHED exponential decay, SED) model may be used as a lifetime model for each display unit, which SED model may derive the decay equivalent curve of the OLED. The model can be characterized by the following formulas (1.1), (1.2) and (1.3):

It will be appreciated that the OLED products produced in the same batch have the same materials, structures and processes, and thus have similar values of n, β, τ, C, K, and that there is a mathematical correspondence between n, β, τ, C, K between different OLED products in the same batch.

As can be seen from this, the parameters affecting the display brightness value of the display unit at time t include at least the following five parameters:

(1) An acceleration factor related to a display luminance decay rate;

(2) τ, a specific decay time scale;

Thus, by adjusting any one or more of the five parameters in equation (1.1), which may be, for example, any one of n, τ, C, β, or K, the display brightness of a single display unit at the current usage time may be adjusted. For example, the display brightness of a single display unit in the current use time can be increased to a first brightness value, so that the uniform display brightness of all display units of the display screen is realized, and the burn-in is repaired.

Illustratively, the first repair intensity value may be any one of the five parameters described above for the lifetime model to determine a first luminance value required to repair the burn-in.

In other embodiments, one or more of the five parameters may also have a correspondence relationship, so that the adjustment control has a correspondence relationship with only a single parameter of the five parameters, for example, any one parameter of n, τ, C, β, or K. At this time, in response to the user repair operation, only a single parameter of the five parameters needs to be subjected to data adjustment, so that the numerical value after the update of the remaining parameters can be obtained, the quick adjustment of the life model is facilitated, and the burn-in is repaired efficiently.

For example, in the OLED display manufactured in batch under the same design, for example, the arrangement mode of the OLEDs, the material system of the luminescent material in the OLEDs, the process design (such as the packaging process) of the display, and other design modes are consistent, and the values of β and τ may have a corresponding relationship, then only one parameter of β and τ needs to be adjusted to obtain the updated value of another parameter, so that the updated luminance L _(t) at the current time t can be quickly obtained based on the above formula (1.1), the formula (1.2), and the formula (1.3), and the luminance L _(t) of all display units at any time t is the same first luminance value.

In some embodiments, the lifetime model may be a curve that produces a decay in luminance over time for an OLED at rated current without adjusting the repair intensity. For example, fig. 11 shows a schematic diagram of a plurality of display luminance curves of a display unit, wherein the vertical axis represents luminance L _(t) at time t, the unit is nit (nit), and the horizontal axis represents the usage period t, the unit is hour (H). Referring to fig. 11, the display brightness of the display unit without the repair strength adjusted is shown as a curve X, and decreases as the use time increases. After the repair intensity is adjusted until the screen burn phenomenon is repaired, the display brightness of the display unit is shown as a straight line Y, and the first brightness value is 600nit at any use time, so that the brightness of the whole display screen tends to the first brightness value, and the screen burn phenomenon is repaired.

In other embodiments, when the repair strength is not adjusted, the initial repair strength value in the lifetime model may also be a specified value, so that the lifetime model may pre-compensate a part of current for a display unit of the entire display screen, and delay the display screen from generating a burn-in phenomenon. For example, referring to fig. 11, the brightness and the use time of the lifetime model of the pre-compensated partial current are shown as curve Z. Compared with the curve X corresponding to the lifetime model without the repair intensity adjustment, the lifetime model with the pre-compensated partial current can make the OLED have less brightness attenuation under the same service time, so as to reduce the risk of screen burn-in of the display screen.

It can be understood that the life model shown by the curve Z can reduce the risk of burning, but the display units with different use times still have larger difference of display brightness, and still have the possibility of burning. Therefore, the adjusted first repairing intensity value can be input into the life model, so that the OLEDs at different use times emit light with the first brightness value to repair the burn-in phenomenon.

It is understood that if the adjusted lifetime model is used to control the single display unit display interface, the single display unit displays the first brightness value no matter how long the single display unit is used. Furthermore, after long-time use, the adjusted life model correspondingly formulates excitation current for display units with different use durations, and determines a first brightness value according to the linear relation between the excitation current and display brightness, so that all the display units display the first brightness value. Therefore, after the screen burn is repaired by using the life model corresponding to the straight line Y, the excitation current can be determined based on the current use time, so that the organic light emitting diode emits light with the same brightness (namely the first brightness value) under different use time periods, and the screen burn again is effectively avoided in a short time.

In some embodiments, the first luminance value may have a value ranging from 0 to 10000 nits.

The excitation current of each display element is determined 606 based on the first luminance value and the current time of use of each display element.

It can be understood that, when the first repair intensity value is input into the lifetime model, the luminance (i.e. the first luminance value) required to be emitted by the OLED at different use times can be determined, and the display luminance and the excitation current of the organic light emitting diode have a linear relationship, so that the corresponding excitation current can be determined according to the first luminance value and the current use time of the OELD.

For example, each display unit emits light using rated current excitation before the repair strength is not adjusted, and each display unit reduces display brightness with use time. Therefore, the different display units have different use times, and the display brightness is different. After the repair intensity is adjusted, the display brightness of all the display units needs to be adjusted to the first brightness value. Therefore, based on the first brightness value and the current brightness value corresponding to the rated excitation current under different use times, the brightness difference of different display units to be lifted can be determined, and further, the current difference value to be compensated for the current value is determined, and corresponding current difference value compensation is carried out for the display units under different use times. The method realizes that different excitation currents are formulated for the display units under different use time, so that the display brightness of each display unit on the interface is a first brightness value, and the screen burn phenomenon is repaired.

Illustratively, the duration of use of the display unit Q1 is T1 hours, the duration of use of the display unit Q2 is T2 hours, and T2> T1. The luminance L1 of the display unit Q1 is greater than the luminance L2 of the display unit Q2 at the rated current, i.e., the display unit Q2 is aged more seriously. Therefore, if the brightness of the display unit Q1 and the brightness of the display unit Q2 need to be compensated to the first brightness value, the excitation current I1 after the adjustment of the display unit Q1 is smaller than the excitation current I2 after the adjustment of the display unit Q2, so that the display brightness of each display unit on the interface is the first brightness value, and the burn-in phenomenon is repaired.

It will be appreciated that the OLEDs in the display screen may be divided into a plurality of areas resulting in a plurality of display elements. One or more organic light emitting diodes may be included in a single display unit. In some embodiments, a×a organic light emitting diodes may be configured as one display unit, for example, 2×2, 3*3, 4*4, where each display unit performs brightness compensation independently, so that the brightness of the entire display screen tends to the first brightness value.

And 607, acquiring the operation of a user on a restoration control on the screen burn-in restoration interface, and restoring the first restoration intensity value to an initial restoration intensity value.

It will be appreciated that, when the life model parameter is changed, in order to avoid damage to the display unit of the display screen caused by erroneous parameter modification, a recovery control for recovering the first recovery intensity value to the initial recovery intensity value may be set on the burn-in recovery interface loaded in step 602 above, so as to provide an entry for the user to recover the initial parameter value of the life model. Further, after the first repair intensity value is restored to the initial repair intensity value, the brightness of the display screen may be restored to before the user does not adjust the first adjustment control.

It will be appreciated that the initial numerical parameters of the lifetime model described above may be pre-stored in the memory of the electronic device 100 and may be stored in a pre-set format. For example, the initial parameters of the lifetime model may be written into a display screen configuration file or written into a display screen log file.

608, Obtaining the adjustment operation of the brightness control on the burn-in repair interface by the user, and adjusting the backlight brightness of each display unit.

For example, a user brightness modification operation may be obtained through a brightness control, for example, the brightness control is set to be a brightness control bar, and in response to a user operation of dragging the brightness control bar, a corresponding backlight brightness control signal may be generated, so as to implement adjustment of the backlight brightness of the display screen through the backlight brightness control signal.

In some embodiments, the backlight brightness control signal may be a pulse width modulation (pulse width modulation, PWM) signal, where the PWM signal may implement control over the backlight brightness of the display screen.

It can be understood that the above pulse width modulation is an analog control manner for backlight brightness of a display screen, and modulates bias of the organic light emitting diode according to a change of a corresponding load, so as to control on time of the organic light emitting diode, thereby realizing backlight value adjustment of the organic light emitting diode by controlling on time of the organic light emitting diode.

It can be understood that, since it is difficult for the human eye to perceive flickering of a single color patch having a frequency greater than 60 hz, increasing the flickering frequency of the organic light emitting diode, for example, taking 1 ms as a single switching period of the organic light emitting diode, it is difficult for the user to perceive flickering generated by the organic light emitting diode, but the human eye can observe a decrease in brightness due to flickering. For example, if the organic light emitting diode is turned on for 0.5 ms and turned off for 0.5 ms in a 1 ms switching period, the user can observe that the display brightness of the organic light emitting diode is only half of the brightness in the normally-on state. Similarly, if the organic light emitting diode is turned on for 0.1 ms and turned off for 0.9 ms within 1 ms, the display brightness of the organic light emitting diode observed by human eyes is only one tenth of the brightness in a normally-bright state. Thereby the backlight value of the organic light emitting diode can be adjusted by controlling the switch of the organic light emitting diode.

It will be appreciated that for the human eye, the perceived change in brightness is not linearly and evenly distributed, and that the gray scale perceived by the human eye is approximately power-exponent dependent on the actual image input, which can be expressed as f (x) =x ζ, with the value of the gamma typically being around 2.2. It is clear that the human eye has a relatively high resolution of darkness, and has a relatively low resolution of an image having a relatively high brightness.

The gray coefficient (gamma) can be expressed by Greek letter gamma, can be used for representing the corresponding relation between an output light curve and an input screen voltage in the display screen, and can be used for calculating the gray value of an interface displayed by the display screen.

Therefore, in some embodiments, 256 luminance values corresponding to 256 gray scales can be identified based on human eyes, and the second luminance value adjusted by the backlight luminance can be set to a luminance threshold corresponding to the gamma gray scale, for example, 800-600 nit, 600-90 nit, 90-30 nit, 30-10 nit, 10-2 nit, 2nit.

In some embodiments, referring to fig. 12, where the burn-in repair interface 1200a includes a burn-in area 1204 thereon, in response to a user-initiated operation, the following three controls may be loaded in the burn-in repair interface 1200 a:

(1) A brightness control 1201 providing an entry to adjust the brightness of the backlight;

(2) An adjustment control 1202 providing an entry to adjust burn-in repair strength;

(3) A recovery control 1203 that provides access to recovery lifetime model initial parameters.

Furthermore, the burn-in repair interface 1200a may provide the user with access to control the burn-in repair intensity, control the backlight brightness, and recover the initial parameters of the life model, respectively, so that the user can change the burn-in repair intensity, the backlight brightness, and the initial parameters of the life model through steps 601 to 608, and obtain the repaired burn-in interface 1200b.

It can be appreciated that the brightness control 1201, the adjustment control 1202 and the recovery control 1203 can all move on the screen burn repairing interface 1200a to avoid shielding the screen burn area 1204, so that the user can observe the screen burn repairing effect in real time.

In still other embodiments, the above-mentioned control for providing the entry for adjusting the backlight brightness and the control for restoring the entry of the life model initial parameter may also be associated with the physical key, and the touch/click/long press operation of the corresponding physical key by the user is obtained, so that the backlight brightness or the life model initial parameter can be adjusted. Because the entity keys do not occupy the display screen interface, the influence on the brightness change of the screen burning area and the non-screen burning area observed by a user can be avoided, and the influence on the screen burning repairing effect is avoided.

It can be understood that, according to the specific implementation process of the screen burn repairing method shown in the above steps 601 to 606, the starting operation of the screen burn repairing software started by the user is obtained, and a screen burn repairing interface is provided for the user, where the screen burn repairing interface includes an adjustment control. And acquiring the adjustment operation of the user on the adjustment control, determining a corresponding first restoration intensity value based on the adjustment operation, and inputting the first restoration intensity value into the life model to determine a first brightness value, wherein the first brightness value indicates that the brightness of the display screen needs to be adjusted to the first brightness value. Different excitation currents are set for different OLEDs according to the first luminance value and the use time of the different OLEDs so that the luminance of the entire display screen tends to the first luminance value. Therefore, the screen burn is effectively repaired, and the user can observe the screen burn repairing effect in real time through naked eyes, or can detect the screen burn repairing effect in real time through special equipment, so that the screen burn repairing device is convenient to use.

Further, by adjusting the repair intensity value, a best-matched life model can be made for each organic light emitting diode in the display screen, meanwhile, the service time of the organic light emitting diode is monitored in real time, and the long-term service life of the organic light emitting diode can be accurately predicted by combining the service time with the parameters of the life model corresponding to the repair intensity value.

Specifically, the excitation current of the OLED under different use times can be determined based on the current use time and the first brightness value, so that the organic light emitting diode emits light with the same first brightness value under different use time periods, the same display brightness is maintained, and the phenomenon of screen burning again in a short time is effectively avoided.

In addition, according to the specific implementation process of the burn-in repair method shown in the above steps 607 to 608, in response to the user operation on the recovery control, the parameters of the lifetime model of each display unit may be recovered to the initial parameters, so as to avoid the device damage caused by the modification of the error parameters to the display units of the display screen. And responding to the adjustment operation of the brightness control by the user, the backlight brightness of each display unit can be adjusted, and the user can observe the screen burn-in repair effect conveniently.

It should be noted that, in the present application, reference numerals of method steps are only used to identify steps, the execution sequence of the steps is not limited by the reference numerals, and the steps may be executed sequentially, executed in parallel or split, which is not particularly limited herein.

Fig. 13 shows a schematic hardware structure of the electronic device 100 according to an embodiment of the present application.

As shown in fig. 13, the electronic device 100 may include a processor 110, an external memory interface 120, an internal memory 121, a universal serial bus (universal serial bus, USB) interface 130, a charge management module 140, a power management module 141, a battery 142, an antenna 1 and an antenna 2 (not shown in the drawing), a mobile communication module 150, a wireless communication module 160, an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D (not shown in the drawing), a sensor module 180, a key 190, a motor 191, an indicator 192, a camera 193, a display 194, a display control chip 195, and a subscriber identity module (subscriber identification module, SIM) card interface (not shown in the drawing), etc. The sensor module 180 may include a pressure sensor 180A, a gyro sensor 180B, an acceleration sensor 180E, a distance sensor 180F, a touch sensor 180K, an ambient light sensor 180L, and the like.

It should be understood that the illustrated structure of the embodiment of the present application does not constitute a specific limitation on the electronic device 100. In other embodiments of the application, electronic device 100 may include more or less components than illustrated, or certain components may be combined, or certain components may be split, or different arrangements of components, without limitation.

The processor 110 may include one or more processing units, for example, the processor 110 may include an application processor (application processor, AP), a modem processor, a graphics processor (graphics processing unit, GPU), an image signal processor (IMAGE SIGNAL processor, ISP), a controller, a video codec, and the like. Wherein the different processing units may be separate devices or may be integrated in one or more processors.

In some embodiments, the controller generates operation control signals according to the instruction operation code and the timing signals of the processor 110, and completes the control of instruction fetching and instruction execution to execute the burn-in repair method provided by the embodiment of the application.

A memory may also be provided in the processor 110 for storing instructions and data.

In some embodiments, the processor 110 may include one or more interfaces. In some embodiments, the processor 110 may include one or more interfaces. The interfaces may include an integrated circuit (inter-INTEGRATED CIRCUIT, I2C) interface, an integrated circuit built-in audio (inter-INTEGRATED CIRCUIT SOUND, I2S) interface, a pulse code modulation (pulse code modulation, PCM) interface, a universal asynchronous receiver transmitter (universal asynchronous receiver/transmitter, UART) interface, a mobile industry processor interface (mobile industry processor interface, MIPI), a general-purpose input/output (GPIO) interface, a subscriber identity module (subscriber identity module, SIM) interface, and/or a universal serial bus (universal serial bus, USB) interface, among others. The USB interface 130 may be used to connect a charger to charge the electronic device 100, or may be used to transfer data between the electronic device 100 and a peripheral device.

A memory may also be provided in the processor 110 for storing instructions and data. In some embodiments, the memory in the processor 110 is a cache memory. The memory may hold instructions or data that the processor 110 has just used or recycled. If the processor 110 needs to reuse the instruction or data, it can be called directly from the memory. Repeated accesses are avoided and the latency of the processor 110 is reduced, thereby improving the efficiency of the system.

In some embodiments, the processor 110 may include one or more interfaces. The interface may include a universal serial bus (universal serial bus, USB) interface, or the like. The USB interface 130 may be used to connect a charger to charge the electronic device 100, or may be used to transfer data between the electronic device 100 and a peripheral device.

The charge management module 140 is configured to receive a charge input from a charger. The power management module 141 is used for connecting the battery 142, and the charge management module 140 and the processor 110. The power management module 141 receives input from the battery 142 and/or the charge management module 140 and provides power to the processor 110, the internal memory 121, the display 194, the display control chip 195, the camera 193, the wireless communication module 160, and the like.

The wireless communication function of the electronic device 100 may be implemented by the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, a modem processor, a baseband processor, and the like.

The antennas 1 and 2 are used for transmitting and receiving electromagnetic wave signals. Each antenna in the electronic device 100 may be used to cover a single or multiple communication bands. Different antennas may also be multiplexed to improve the utilization of the antennas.

The mobile communication module 150 may provide a solution for wireless communication including 2G/3G/4G/5G, etc., applied to the electronic device 100. The modem processor may include a modulator and a demodulator.

The wireless communication module 160 may provide solutions for wireless communication including wireless local area network (Wireless local area networks, WLAN) (e.g., wi-Fi network, WIRELESS FIDELITY), bluetooth (BT), global navigation satellite system (global navigation SATELLITE SYSTEM, GNSS), frequency modulation (frequency modulation, FM), near Field Communication (NFC), infrared (IR), etc., applied to the electronic device 100.

In some embodiments, antenna 1 and mobile communication module 150 of electronic device 100 are coupled, and antenna 2 and wireless communication module 160 are coupled, such that electronic device 100 may communicate with a network and other devices through wireless communication techniques.

The electronic device 100 implements display functions through a GPU, a display screen 194, a display screen control chip 195, and the like. The GPU is a microprocessor for image processing, and is connected to the display 194 and the display control chip 195. The GPU is used to perform mathematical and geometric calculations for graphics rendering, and in some embodiments may be used to modify the burn-in repair interface background according to a user-specified picture, such as modifying a white picture background to a red picture background. Processor 110 may include one or more GPUs that execute program instructions to generate or change display information.

The display control chip 195 may acquire the current use time of a single display unit and the display brightness of the single display unit on the display 194 in real time. In some embodiments, the display screen control chip 195 may also respond to the user repair operation by adjusting parameters of the lifetime model to obtain a new lifetime model, and controlling each display unit in the display screen 194 with the new lifetime model to display the interface after repairing the burned-in screen.

The display control chip 195 may be a system on chip (SoC) or a timing controller (timing controller, TCON), for example.

The timing controller may power the display screen 194 and may set the appropriate gray scale values for the display signals. In addition, the timing controller can convert the data and control signals transmitted from the front-end motherboard (such as the processor 110) into the format required by the display screen. For example, the timing controller may convert a low-voltage DIFFERENTIAL SIGNALING (LVDS) signal into a low swing SWING DIFFERENTIAL SIGNAL (RSDS) signal for data driving of the display screen to implement interface display.

In some embodiments, a monitoring program is disposed in the timing controller, and the monitoring program can be used to monitor the current usage time of the display units in the display screen 194, so as to increase the display brightness of all the display units to the first brightness value according to the current usage time and the updated lifetime model, and further repair the burn-in phenomenon.

The display screen 194 is used to display images, videos, and the like. The display 194 includes a display panel. The display panel may employ a Liquid Crystal Display (LCD), an organic light-emitting diode (OLED), an active-matrix organic LIGHT EMITTING diode (AMOLED), a flexible light-emitting diode (FLED), a Mini-LED, a Micro-OLED, a quantum dot light-emitting diode (QLED), or the like. In some embodiments, the electronic device 100 may include 1 or N display screens 194, N being a positive integer greater than 1.

In the embodiment of the application, the display screen 194 can display a burn-in repair interface, and also can display a repair intensity control, a brightness control, a recovery parameter control and the like loaded on the burn-in repair interface.

The electronic device 100 may implement photographing functions through an ISP, a camera 193, a video codec, a GPU, a display screen 194, an application processor, and the like.

The ISP is used to process data fed back by the camera 193. For example, when photographing or taking a video, the shutter is opened, light is transmitted to the camera photosensitive element through the lens, the optical signal is converted into an electrical signal, and the camera photosensitive element transmits the electrical signal to the ISP for processing, so that the electrical signal is converted into an image visible to the naked eye. ISP can also optimize the noise, brightness and skin color of the image. The ISP can also optimize parameters such as exposure, color temperature and the like of a shooting scene. In some embodiments, the ISP may be provided in the camera 193.

The camera 193 is used to capture still images or video. The object generates an optical image through the lens and projects the optical image onto the photosensitive element. The photosensitive element may be a charge coupled device (charge coupled device, CCD) or a Complementary Metal Oxide Semiconductor (CMOS) phototransistor. The photosensitive element converts the optical signal into an electrical signal, which is then transferred to the ISP to be converted into a digital image signal. The ISP outputs the digital image signal to the DSP for processing. The DSP converts the digital image signal into an image signal in a standard RGB, YUV, or the like format. In some embodiments, electronic device 100 may include 1 or N cameras 193, N being a positive integer greater than 1.

Video codecs are used to compress or decompress digital video.

The external memory interface 120 may be used to connect an external memory card, such as a Micro SD card, to enable expansion of the memory capabilities of the electronic device 100.

The internal memory 121 may be used to store computer executable program code that includes instructions. The internal memory 121 may include a storage program area and a storage data area. The storage data area may store data created during use of the electronic device 100 (e.g., video data obtained by photographing, etc.), and the like. In addition, the internal memory 121 may include a high-speed random access memory, a nonvolatile memory, and the like. The processor 110 performs various functional applications of the electronic device 100 and data processing by executing instructions stored in the internal memory 121 and/or instructions stored in a memory provided in the processor.

The electronic device 100 may implement audio functions through an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, an application processor, and the like. Such as music playing, recording, etc.

The pressure sensor 180A is used to sense a pressure signal, and may convert the pressure signal into an electrical signal. In some embodiments, the pressure sensor 180A may be disposed on the display screen 194.

The pressure sensor 180A is of various types, such as a resistive pressure sensor, an inductive pressure sensor, a capacitive pressure sensor, and the like. The capacitive pressure sensor may be a capacitive pressure sensor comprising at least two parallel plates with conductive material. The capacitance between the electrodes changes when a force is applied to the pressure sensor 180A. The electronic device 100 determines the strength of the pressure from the change in capacitance. When a touch operation is applied to the display 194, the electronic apparatus 100 detects the intensity of the touch operation according to the pressure sensor 180A. The electronic device 100 may also calculate the location of the touch based on the detection signal of the pressure sensor 180A.

The gyro sensor 180B may be used to determine a motion gesture of the electronic device 100.

The acceleration sensor 180E may detect the magnitude of acceleration of the electronic device 100 in various directions (typically three axes). The magnitude and direction of gravity may be detected when the electronic device 100 is stationary. The method can also be used for identifying the gesture of the electronic equipment and is applied to applications such as horizontal and vertical screen switching.

A distance sensor 180F for measuring a distance. The electronic device 100 may measure the distance by infrared or laser.

The ambient light sensor 180L is used to sense ambient light level.

The touch sensor 180K, also referred to as a "touch panel". The touch sensor 180K may be disposed on the display screen 194, and the touch sensor 180K and the display screen 194 form a touch screen, which is also called a "touch screen". The touch sensor 180K is for detecting a touch operation acting thereon or thereabout. The touch sensor may communicate the detected touch operation to the application processor to determine the touch event type. Visual output related to touch operations may be provided through the display 194.

It is appreciated that the software system of the electronic device 100 may employ a layered architecture, an event driven architecture, a microkernel architecture, a microservice architecture, or a cloud architecture. The embodiment of the invention takes an android system with a layered architecture as an example, and illustrates the software structure of the electronic device 100.

Illustratively, the layered architecture divides the software into several layers, each with distinct roles and branches. The layers communicate with each other through a software interface. In some embodiments, the android system is divided into four layers, from top to bottom, an application layer, an application framework layer, an Zhuoyun rows (android runtime) and system libraries, and a kernel layer, respectively.

It is to be understood that the components included in the electronic device 100 shown in fig. 14 do not constitute a specific limitation on the electronic device 100. In other embodiments of the present application, the electronic device 100 may include more or fewer components than shown, or certain components may be combined, or certain components may be split, or different arrangements of components.

As shown in fig. 14, the application layer may include a series of application packages. The application package may include applications for cameras, gallery, calendar, talk, map, navigation, WLAN, bluetooth, music, video, short messages, burn-in repairs, etc.

The application framework layer provides an application programming interface (Application Programming Interface, API) and programming framework for the application of the application layer, including various components and services to support the android development of the developer.

The application framework layer includes a number of predefined functions. The application framework layer may include a view system, a window manager, a resource manager, a content provider, a notification manager, a camera service, a multimedia management module, and the like.

The window manager is used for managing window programs. The window manager can acquire the size of the display screen, judge whether a status bar exists, lock the display screen, intercept the display screen and the like.

The content provider is used to store and retrieve data and make such data accessible to applications. The data may include video, images, audio, calls made and received, browsing history and bookmarks, phonebooks, etc. In some embodiments, the content provider may provide initial parameters of the lifetime model for the burn-in repair application for restoring lifetime model parameters for a single display unit on the display screen 194.

The view system includes visual controls, such as controls to display text, controls to display pictures, and the like. The view system may be used to build applications. The display interface may be composed of one or more views. For example, the burn-in repair interface may include a view for displaying text and a view for displaying pictures, so as to display a layer corresponding to different controls on the burn-in repair interface and a layer corresponding to a background picture, so as to display the burn-in repair interfaces shown in fig. 2A to 5 and the burn-in repair interfaces shown in fig. 7 to 12.

The telephony manager is used to provide the communication functions of the electronic device 100. Such as the management of call status (including on, hung-up, etc.).

The resource manager provides various resources for the application program, such as localization strings, icons, pictures, layout files, video files, and the like.

The notification manager allows the application to display notification information in a status bar, can be used to communicate notification type messages, can automatically disappear after a short dwell, and does not require user interaction. Such as notification manager is used to inform that the download is complete, message alerts, etc. The notification manager may also be a notification presented in the form of a chart or scroll bar text in the system top status bar, such as a notification of a background running application, or a notification presented in the form of a dialog window on a display screen. For example, a text message is prompted in a status bar, a prompt tone is emitted, the electronic device vibrates, and an indicator light blinks, etc.

The camera service is used for calling a camera driver (including a front camera and/or a rear camera) in response to a request of an application.

The multimedia management module is configured to process the image based on the configuration of the camera service, and a specific process will be described in detail in the following embodiments.

The android runtime includes a core library and virtual machines. And the android running time is responsible for scheduling and managing an android system.

The core library comprises two parts, wherein one part is a function required to be called by java language, and the other part is an android core library.

The application layer and the application framework layer run in a virtual machine. The virtual machine executes java files of the application program layer and the application program framework layer as binary files. The virtual machine is used for executing the functions of object life cycle management, stack management, thread management, security and exception management, garbage collection and the like.

The system library may include a plurality of functional modules. Such as surface manager (surface manager), media library (media library), three-dimensional graphics processing library (e.g., openGL ES), 2D graphics engine (e.g., SGL), etc.

The surface manager is used to manage the display subsystem and provides a fusion of 2D and 3D layers for multiple applications.

Media libraries support a variety of commonly used audio, video format playback and recording, still image files, and the like. The media library may support a variety of audio and video encoding formats, such as MPEG4, h.264, MP3, AAC, AMR, JPG, PNG, etc.

The three-dimensional graphic processing library is used for realizing three-dimensional graphic drawing, image rendering, synthesis, layer processing and the like.

The 2D graphics engine is a drawing engine for 2D drawing.

The kernel layer is a layer between the hardware and the software layers described above. The inner core layer at least comprises a display driver, a camera driver, an audio driver and a sensor driver. The hardware may include a camera, a display screen, a microphone, a processor, a memory, and the like.

In the embodiment of the present application, the display screen in the hardware may display a burn-in repair interface. A camera in hardware may be used to capture the image.

The workflow of the electronic device 100 software and hardware is illustrated below in connection with a scenario in which a user uses the electronic device 100 for burn-in repair.

When touch sensor 180K receives a touch operation, a corresponding hardware interrupt is issued to the kernel layer. The kernel layer processes the touch operation into an original input event (including information such as touch coordinates of the touch operation, time stamp of the touch operation, etc.). The original input event is stored at the kernel layer. The application framework layer acquires an original input event from the kernel layer, and identifies a control corresponding to the input event. When the touch operation is a drag operation, for example, when the control corresponding to the drag operation is an adjusting control for adjusting the screen burn repair strength in the interface of the screen burn repair application, the screen burn repair application can call a screen display process, for example, call an interface of an application framework layer, and further start the screen burn repair process through display driving of a kernel layer. The electronic device 100 may perform the call of the corresponding burn-in repair process through the interactive operations such as the touch/click/long press/drag/space gesture/handle remote control of the adjustment control by the user detected by the display screen, or other operations capable of triggering the burn-in repair intensity adjustment process.

Illustratively, the burn-in repair application is launched and invokes the view system to cause the view system to provide a burn-in repair interface for the user. When the application program is started, a burn-in repair process is built in the application program framework layer through an interface with the application program framework layer. For example, an interface of the application framework layer is called, a control signal (e.g., LVDS image data input signal) to the display screen 194 is generated by an adjustment instruction of the burn-in repair strength, and the control signal is sent to the display screen control chip 195 in a display driver of the kernel layer. The display driver may then invoke a content provider within the application framework layer to determine a lifetime model corresponding to the single display unit. And the display driver carries out parameter adjustment on the life model built in the content provider according to the life model parameter adjustment instruction to obtain a new life model. Meanwhile, the display driver builds a monitoring service in the application framework layer, monitors the current use time of a single display unit in real time, generates a new control signal for the display screen 194 based on the new life model when the new life model is obtained, further provides corresponding power supply current for each display unit in the display screen 194 according to the new control signal, for example, displays the display unit with the same first brightness value, and then needs to determine compensation current for each display unit according to the current use time and the life model and provide different current compensation for each display unit. Thereby eliminating the display brightness difference of each display unit of the display screen 194 and repairing the burn-in phenomenon of the display screen 194.

Reference in the specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one example implementation or technique according to the disclosure. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment.

The present disclosure also relates to an operating device for executing the text. The apparatus may be specially constructed for the required purposes, or it may comprise a general-purpose computer selectively activated or reconfigured by a computer program stored in the computer. Such a computer program may be stored in a computer readable medium, such as, but is not limited to, any type of disk including floppy disks, optical disks, CD-ROMs, magnetic-optical disks, read-only memories (ROMs), random Access Memories (RAMs), EPROMs, EEPROMs, magnetic or optical cards, application Specific Integrated Circuits (ASICs), or any type of media suitable for storing electronic instructions, and each may be coupled to a computer system bus. Furthermore, the computers referred to in the specification may include a single processor or may be architectures employing multiple processors for increased computing power.

The processes and displays presented herein are not inherently related to any particular computer or other apparatus. Various general-purpose systems may also be used with programs in accordance with the teachings herein, or it may prove convenient to construct more specialized apparatus to perform one or more method steps. The structure for a variety of these systems is discussed in the following description. In addition, any particular programming language sufficient to practice the techniques and embodiments of the present disclosure may be used. Various programming languages may be used to implement the burn-in repair methods of the present disclosure, as discussed herein.

Additionally, the language used in the specification has been principally selected for readability and instructional purposes, and may not have been selected to delineate or circumscribe the disclosed subject matter. Accordingly, the present disclosure is intended to be illustrative, but not limiting, of the scope of the concepts discussed herein.

Claims

1. A burn-in repair method for an electronic device comprising a display screen, the display screen comprising a plurality of light emitting elements and a burn-in area, the method comprising:

displaying a first application interface, wherein the first application interface comprises an adjustment control;

Detecting a first operation of the adjustment control by a user;

determining a first expected display brightness corresponding to the first operation;

Determining, based on the first desired display brightness, an excitation current for the display screen including a plurality of light emitting elements, wherein,

The plurality of light emitting elements includes a first light emitting element and a second light emitting element, the first light emitting element is located in the burn-in area, the second light emitting element is located outside the burn-in area, and the determined first excitation current of the first light emitting element and the determined second excitation current of the second light emitting element are different.

2. The method of claim 1, wherein the first application interface comprises a background layer, wherein the background layer comprises any one of a white background layer, a red background layer, a green background layer, or a blue background layer.

3. The method of claim 1, wherein determining a first desired display brightness corresponding to the first operation comprises:

and inputting a first repair intensity value corresponding to the first operation into a first model, and determining the first expected display brightness.

4. A method according to claim 3, wherein the first repair strength value comprises any one of:

An acceleration factor related to the decay rate of the light emitting element, a plurality of constant parameters related to the lifetime of the light emitting element, wherein,

At least two of the acceleration factor related to the decay rate of the light emitting element, the plurality of constant parameters related to the lifetime of the light emitting element, have a first correspondence, wherein the first correspondence comprises a linear relationship.

5. The method of claim 1, wherein the adjustment control comprises a control bar, a control pad, a control icon, or a physical button.

6. The method of claim 1, wherein the range of values for the first desired display brightness comprises 0 to 10000 nits.

7. The method of claim 3, wherein the first application interface includes a resume control, and wherein the method further comprises:

Detecting a second operation of the recovery control by the user;

And restoring the brightness of the display screen to the brightness before the user does not adjust the adjusting control.

8. The method of claim 7, wherein the restoring the brightness of the display screen to the initial brightness before the user does not adjust the adjustment control comprises:

And acquiring an initial restoration intensity value of the first model, and inputting the initial restoration intensity value into the first model to obtain initial brightness.

9. The method of claim 8, wherein said inputting the initial repair intensity value into the first model results in an initial luminance, comprising:

inputting the initial restoration intensity value into the first model to obtain second expected brightness;

And determining the excitation current of each light-emitting element corresponding to the second expected brightness according to the second expected brightness, and exciting the light-emitting element by using the excitation current of each light-emitting element corresponding to the second expected brightness to obtain the initial brightness.

10. An electronic device comprising one or more processors, one or more memories, the one or more memories storing one or more programs that, when executed by the one or more processors, cause the electronic device to perform the burn-in repair method of any of claims 1-9.

11. A computer readable storage medium having stored thereon instructions that when executed on a computer cause the computer to perform the burn-in repair method of any of claims 1 to 9.