WO2020211619A1 - Display device and texture recognition method therefor - Google Patents
Display device and texture recognition method therefor Download PDFInfo
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- WO2020211619A1 WO2020211619A1 PCT/CN2020/081790 CN2020081790W WO2020211619A1 WO 2020211619 A1 WO2020211619 A1 WO 2020211619A1 CN 2020081790 W CN2020081790 W CN 2020081790W WO 2020211619 A1 WO2020211619 A1 WO 2020211619A1
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- light
- display device
- base substrate
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- electroluminescent
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1318—Sensors therefor using electro-optical elements or layers, e.g. electroluminescent sensing
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/126—Shielding, e.g. light-blocking means over the TFTs
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/60—OLEDs integrated with inorganic light-sensitive elements, e.g. with inorganic solar cells or inorganic photodiodes
- H10K59/65—OLEDs integrated with inorganic image sensors
Definitions
- This application relates to the field of display technology, and in particular to a display device and a method for identifying its lines.
- the optical fingerprint sensor is mainly set in the non-display area of the display product.
- the optical fingerprint sensor mainly includes a light source, a prism, and an electrical coupling device (Charge-coupled Device, CCD) or a complementary metal oxide semiconductor (Complementary Metal Oxide Semiconductor, CMOS) .
- CCD Charge-coupled Device
- CMOS complementary metal oxide semiconductor
- the under-screen fingerprint recognition solution in related technologies uses the light of the organic light-emitting diode device itself as the fingerprint recognition light source, and the photosensitive device receives the light reflected by the upper finger through the gap between the sub-pixels, so that the photosensitive device receives The amount of reflected light is very small.
- the full-screen fingerprint identification scheme in the related technology receives a small amount of reflected light and the fingerprint identification has poor reliability.
- the embodiment of the present application provides a display device and a method for identifying a pattern thereof, which are used for pattern recognition in a display area.
- An embodiment of the application provides a display device, the display device includes: a display panel, and a pattern recognition module located on the side of the display panel away from the light-emitting surface; the display panel includes: a display located on the display panel A plurality of electroluminescent units in the area, and a light selector located on the side of the electroluminescent unit close to the pattern recognition module; the pattern recognition module includes: a plurality of light-emitting components and a plurality of photoelectric components arranged alternately The conversion component, wherein the orthographic projection of the light-emitting component on the display panel is located within the display area; the wavelength band of light emitted by the light-emitting component and the wavelength band of light emitted by the electroluminescent unit do not overlap each other; The light selector is configured to transmit the light emitted by the light emitting component and reflect the light emitted by the electroluminescent unit.
- a pattern recognition module is provided in the display area of the corresponding display panel, and the display panel is provided with light that transmits the light emitted by the light emitting component and reflects the light emitted by the electroluminescent unit.
- the light emitted by the light-emitting component reaching the pattern touch area through the light selector will be reflected by the pattern to be detected, and the reflected light can also reach the photoelectric conversion component through the light selector, so that pattern recognition can be performed in the display area. Since the light selector reflects the light emitted by the electroluminescence unit, the light emitted by the electroluminescence unit will not reach the photoelectric conversion component and affect the pattern recognition.
- the light utilization rate of the electroluminescence unit can be improved.
- the light source used for pattern recognition and the light source used for display are set independently, and the photoelectric conversion part is arranged in the light-emitting area and will not affect the display. Since the area of the light-emitting area is large, the area of the photoelectric conversion part can also be set to Larger, which can increase the amount of light received by the photoelectric conversion component, increase the photocurrent, and thereby improve the reliability of pattern recognition.
- the display panel further includes a base substrate, and the light selector is located between the base substrate and the electroluminescent unit.
- the base substrate is located between the light selector and the electroluminescence unit.
- the electroluminescent unit includes a thin film transistor and an electroluminescent device located on a side of the thin film transistor away from the base substrate;
- the light selector includes a light shielding layer and a light transmitting selection layer, wherein the The orthographic projection of the thin film transistor on the base substrate falls within the orthographic projection of the light shielding layer on the base substrate.
- the light-shielding layer corresponds to an orthographic projection of the thin film transistor on the base substrate
- the light-transmitting selective layer corresponds to an orthographic projection of the electroluminescent device on the base substrate.
- the light-transmitting selective layer includes a photonic crystal.
- the photonic crystal includes a plurality of periodic arrays of dielectric rods.
- the photonic crystal includes periodically arranged dielectric holes.
- the light emitting component emits infrared light
- the electroluminescent unit includes: a red electroluminescent unit, a green electroluminescent unit, and a blue electroluminescent unit.
- the photoelectric conversion component includes one or a combination of the following: an electrical coupling device, a complementary metal oxide semiconductor.
- the pattern recognition module further includes a substrate, and the light-emitting structure and the photoelectric conversion component are alternately arranged on the substrate.
- An embodiment of the present application also provides a fingerprint identification method for the above-mentioned display device, and the method includes:
- FIG. 1 is a schematic structural diagram of a display device provided by an embodiment of the application.
- FIG. 2 is a schematic structural diagram of another display device provided by an embodiment of the application.
- FIG. 3 is a schematic structural diagram of yet another display device provided by an embodiment of the application.
- FIG. 4 is a schematic diagram of a photonic crystal structure provided by an embodiment of the application.
- FIG. 5 is a schematic diagram of another photonic crystal structure provided by an embodiment of the application.
- FIG. 6 is a schematic diagram of a method for pattern recognition of a display device according to an embodiment of the application.
- FIG. 7 is a schematic diagram of another display device provided by an embodiment of the application.
- the display device includes: a display panel 2, and a pattern recognition module 1 located on the side of the display panel 2 away from the light-emitting surface;
- the display panel 2 includes: a plurality of electroluminescent units 3 located in the display area of the display panel 2, and a light selector 4 located on the side of the electroluminescent unit 3 close to the pattern recognition module 1;
- the pattern recognition The module 1 includes: a plurality of light emitting components 5 and a plurality of photoelectric conversion components 6 arranged alternately, wherein the orthographic projection of the light emitting components 5 on the display panel 2 is located in the display area; the light emitting components 5 The wavelength band of light emitted and the wavelength band of light emitted by the electroluminescent unit 3 do not overlap each other; the light selector 4 is configured to transmit the light emitted by the light-emitting component and reflect the light emitted by the electroluminescent unit .
- a pattern recognition module is provided in the display area of the corresponding display panel, and the display panel is provided with light that transmits the light emitted by the light emitting component and reflects the light emitted by the electroluminescent unit In this way, the light emitted by the light-emitting component reaching the pattern touch area through the light selector will be reflected by the pattern to be detected, and the reflected light can also reach the photoelectric conversion component through the light selector, so that pattern recognition can be performed in the display area.
- the light selector reflects the light emitted by the electroluminescence unit, the light emitted by the electroluminescence unit will not reach the photoelectric conversion component and affect the pattern recognition, and the light utilization rate of the electroluminescence unit can also be improved.
- the light source used for pattern recognition and the light source used for display are set independently, and the photoelectric conversion part is arranged in the light-emitting area and will not affect the display. Since the area of the light-emitting area is large, the area of the photoelectric conversion part can also be set to Larger, which can increase the amount of light received by the photoelectric conversion component, increase the photocurrent, and thereby improve the reliability of pattern recognition.
- the display panel 2 further includes a base substrate 7, and the light selector 4 is located between the base substrate 7 and the electroluminescence Between unit 3.
- the base substrate is a glass substrate.
- the light selector 4 is arranged on the side of the base substrate 1 away from the electroluminescent unit 3.
- the electroluminescent unit 3 includes: a thin film transistor 8 and an electroluminescent unit located on the side of the thin film transistor 8 away from the base substrate 1.
- the light shielding layer 10 corresponds to the orthographic projection of the thin film transistor 8 on the base substrate 1, and the light-transmitting selection layer 11 and the electroluminescent device 9 are on the base substrate 1.
- the orthographic projection on the corresponding one to one.
- the display device provided by the embodiment of the present application includes the light-shielding layer 10 corresponding to the thin film transistor one-to-one, so that the light-shielding layer 10 can shield the light emitted by the light-emitting components in the pattern recognition module, thereby avoiding the light-emitting components in the pattern recognition module.
- the emitted light irradiates the thin film transistor to ensure the working stability and reliability of the thin film transistor.
- the light shielding layer 10 is a black matrix.
- the thin film transistor 8 includes a gate 13, a gate insulating layer 14, an active layer 15, a source 16, a drain 17, and a planarization layer 18.
- the electroluminescent device 9 includes an anode 19, a cathode 20, and a light-emitting functional layer 21 located between the anode 19 and the cathode 20.
- the anode 19 is electrically connected to the drain 17 through a via hole penetrating the planarization layer 18.
- the display panel also includes a packaging structure (not shown in the figure) for packaging the electroluminescent device.
- the display device provided in the embodiment of the application is provided with a light selector
- the light selector can reflect the light emitted by the electroluminescent device, so the electroluminescent device does not need to be provided with a reflective layer, and the anode material of the electroluminescent device can be a transparent material .
- the display devices shown in FIGS. 1 to 3 provided by the embodiments of the present application are illustrated by taking a thin film transistor with a bottom gate structure as an example.
- the thin film transistor may also have other structures, such as a top gate structure, which is not limited in this application.
- the light-transmitting selective layer 11 includes a photonic crystal.
- the display device uses a photonic crystal to transmit the light emitted by the light-emitting component and reflect the light emitted by the electroluminescent unit.
- the photonic crystal includes a plurality of periodic arrays of dielectric rods 22.
- the photonic crystal includes periodically arranged dielectric holes 34.
- an etching process can be used to perforate the film to form a photonic crystal.
- the photonic crystal refers to an artificial periodic dielectric structure with photonic band gap characteristics.
- the so-called photonic band gap means that waves of a certain frequency range cannot propagate in this periodic structure, that is, the structure itself has a band gap.
- the photonic band gap of different frequencies and bandwidths can be realized by adjusting the diameter and spacing of dielectric rods or dielectric holes.
- the photonic band gap is a frequency range. When the wave of incident light enters this range, it will be totally reflected, otherwise it will pass through the photonic crystal.
- the photonic crystal needs to realize the photonic band gap of the light emitted by the electroluminescence unit, that is, the light emitted by the electroluminescence unit reaches the photonic crystal and is totally reflected, and the light emitted by the optical component reaches the photonic crystal through .
- the light emitting component emits infrared light
- the electroluminescent unit includes a red electroluminescent unit, a green electroluminescent unit, and a blue electroluminescent unit.
- the photonic crystal transmits infrared light and reflects red, green, and blue light.
- the display devices shown in Figures 1 to 3 provided in the embodiments of the application only show two electroluminescent units for illustration.
- the number of light-emitting units and the red electroluminescent unit and the green electroluminescent unit The arrangement of the blue electroluminescence unit can be selected according to actual needs.
- the photoelectric conversion component includes one or a combination of the following: an electrically coupled device (Charge-coupled Device, CCD), and a complementary metal oxide semiconductor (Complementary Metal Oxide Semiconductor, CMOS).
- CCD Charge-coupled Device
- CMOS complementary metal oxide semiconductor
- the photoelectric conversion component can convert the optical signal into an electrical signal, so that the pattern can be identified based on the electrical signal.
- the pattern recognition module 1 further includes a substrate 12, and the light-emitting structure 5 and the photoelectric conversion component 6 are alternately arranged on the substrate 12.
- the photoelectric conversion component 6 is provided in the light-emitting area of the electroluminescent unit 3.
- the light source used for pattern recognition and the light source used for display are arranged independently, and the photoelectric conversion component is arranged in the light-emitting area without affecting the display, so that the photoelectric conversion component can be arranged in the light-emitting area. Since the area of the light-emitting region is larger, the area of the photoelectric conversion component can also be set to be larger, so that the light receiving amount of the photoelectric conversion component can be increased, the photocurrent can be increased, and the reliability of the pattern recognition can be improved.
- the display device provided by the embodiment of the present application may be, for example, a mobile phone, a tablet, or the like.
- An embodiment of the present application provides a fingerprint identification method for the above display device. As shown in FIG. 6, the method includes:
- the method further includes: controlling the electroluminescent unit to turn on.
- the lines may be fingerprints or palm prints, for example.
- the pattern recognition operation can be triggered by pressing the unlock side key 27, that is, when the user presses the unlock side key, the screen lights up in the locked state, and the light is controlled at the same time The component and the photoelectric conversion component are turned on at the same time.
- the pattern recognition module can detect the pattern. If the current pattern is consistent with the preset pattern, the screen will be unlocked. If the pattern is inconsistent, it will not unlock.
- the display device shown in FIG. 3 is taken as an example to illustrate the principle of pattern detection and recognition.
- the pattern 26 When the pattern 26 is placed in the pattern recognition area, because the pattern has concave and convex points, the light will be reflected by the pattern 26 when it reaches the concave and convex points, and will also pass through the light-emitting function layer 21 and the light-transmitting selective layer after reflection. 11 and the base substrate 7 are captured by the photoelectric conversion part 6 and converted into electrical signals.
- the electrical signals generated by the photoelectric conversion component 6 will be different, so as to identify the convex and concave points, realize the function of pattern recognition, and then judge the current Whether the pattern is consistent with the preset pattern.
- a pattern recognition module is provided in the display area of the corresponding display panel, and the display panel is provided with light transmitted through the light emitting component and reflected
- the light selector for the light emitted by the electroluminescent unit in this way, the light emitted by the light-emitting component that reaches the pattern touch area through the light selector will be reflected by the pattern to be detected, and the reflected light can also reach the photoelectric conversion component through the light selector.
- pattern recognition can be performed in the display area.
- the light selector reflects the light emitted by the electroluminescence unit, the light emitted by the electroluminescence unit will not reach the photoelectric conversion component and affect the pattern recognition, and the light utilization rate of the electroluminescence unit can also be improved.
- the light source used for pattern recognition and the light source used for display are set independently, and the photoelectric conversion part is arranged in the light-emitting area and will not affect the display. Since the area of the light-emitting area is large, the area of the photoelectric conversion part can also be set to Larger, which can increase the amount of light received by the photoelectric conversion component, increase the photocurrent, and thereby improve the reliability of pattern recognition.
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Abstract
Description
相关申请的交叉引用Cross references to related applications
本申请主张在2019年4月16日在中国提交的中国专利申请号No.201910302990.7的优先权，其全部内容通过引用包含于此。This application claims the priority of Chinese Patent Application No. 201910302990.7 filed in China on April 16, 2019, the entire content of which is incorporated herein by reference.
本申请涉及显示技术领域，尤其涉及一种显示装置及其纹路识别方法。This application relates to the field of display technology, and in particular to a display device and a method for identifying its lines.
目前市场上的移动显示产品都具有指纹识别功能，目前常用的指纹识别技术包括光学指纹传感器、半导体电容传感器、射频传感器、超声波传感器等。相关技术中光学指纹传感器主要设置在显示产品的非显示区，光学指纹传感器主要包含光源、三棱镜以及电耦合器件(Charge-coupled Device，CCD)或者互补金属氧化物半导体(Complementary Metal Oxide Semiconductor，CMOS)。但由于全面屏技术的发展，需要实现屏下指纹识别，设置在非显示区的光学指纹传感器无法直接设置在显示区。对于全面屏，相关技术中的屏下指纹识别方案利用有机发光二极管器件自身的光作为指纹识别光源，并且感光器件是通过子像素之间的间隙接收到上方手指反射后的光，这样感光器件接收的反射的光量很小。综上，相关技术中的全面屏指纹识别方案感光器件接受的反射光量小，指纹识别可靠性差。At present, mobile display products on the market all have fingerprint recognition functions. Currently commonly used fingerprint recognition technologies include optical fingerprint sensors, semiconductor capacitive sensors, radio frequency sensors, ultrasonic sensors, etc. In related technologies, the optical fingerprint sensor is mainly set in the non-display area of the display product. The optical fingerprint sensor mainly includes a light source, a prism, and an electrical coupling device (Charge-coupled Device, CCD) or a complementary metal oxide semiconductor (Complementary Metal Oxide Semiconductor, CMOS) . However, due to the development of full-screen technology, under-screen fingerprint recognition needs to be realized, and the optical fingerprint sensor set in the non-display area cannot be directly set in the display area. For a full screen, the under-screen fingerprint recognition solution in related technologies uses the light of the organic light-emitting diode device itself as the fingerprint recognition light source, and the photosensitive device receives the light reflected by the upper finger through the gap between the sub-pixels, so that the photosensitive device receives The amount of reflected light is very small. To sum up, the full-screen fingerprint identification scheme in the related technology receives a small amount of reflected light and the fingerprint identification has poor reliability.
发明内容Summary of the invention
本申请实施例提供了一种显示装置及其纹路识别方法，用以在显示区进行纹路识别。The embodiment of the present application provides a display device and a method for identifying a pattern thereof, which are used for pattern recognition in a display area.
本申请实施例提供的一种显示装置，所述显示装置包括：显示面板，以及位于所述显示面板远离出光面一侧的纹路识别模组；所述显示面板包括：位于所述显示面板的显示区的多个电致发光单元，以及位于所述电致发光单元靠近所述纹路识别模组一侧的光选择器；所述纹路识别模组包括：交替排 列的多个发光部件以及多个光电转换部件，其中所述发光部件在所述显示面板上的正投影位于所述显示区之内；所述发光部件发出光的波段与所述电致发光单元发出光的波段互不交叠；所述光选择器构造为透过所述发光部件发出的光，且反射所述电致发光单元发出的光。An embodiment of the application provides a display device, the display device includes: a display panel, and a pattern recognition module located on the side of the display panel away from the light-emitting surface; the display panel includes: a display located on the display panel A plurality of electroluminescent units in the area, and a light selector located on the side of the electroluminescent unit close to the pattern recognition module; the pattern recognition module includes: a plurality of light-emitting components and a plurality of photoelectric components arranged alternately The conversion component, wherein the orthographic projection of the light-emitting component on the display panel is located within the display area; the wavelength band of light emitted by the light-emitting component and the wavelength band of light emitted by the electroluminescent unit do not overlap each other; The light selector is configured to transmit the light emitted by the light emitting component and reflect the light emitted by the electroluminescent unit.
本申请实施例提供的显示装置，在对应显示面板的显示区设置纹路识别模组，并且在显示面板设置有透过所述发光部件发出的光且反射所述电致发光单元发出的光的光选择器，这样，发光部件发出的光通过光选择器到达纹路触摸区域会被待检测纹路反射，反射后的光同样可以通过光选择器到达光电转换部件，从而可以在显示区进行纹路识别。由于光选择器反射电致发光单元发出的光，从而电致发光单元发出的光不会到达光电转换部件并对纹路识别产生影响，此外还可以提高电致发光单元的光利用率。并且，用于纹路识别的光源与用于显示的光源独立设置，光电转换部件设置在发光区也不会对显示造成影响，由于发光区的面积较大，因此光电转换部件的面积也可以设置为较大，从而可以提高光电转换部件的光接收量，提高光电流，进而提高纹路识别的可靠性。In the display device provided by the embodiment of the present application, a pattern recognition module is provided in the display area of the corresponding display panel, and the display panel is provided with light that transmits the light emitted by the light emitting component and reflects the light emitted by the electroluminescent unit In this way, the light emitted by the light-emitting component reaching the pattern touch area through the light selector will be reflected by the pattern to be detected, and the reflected light can also reach the photoelectric conversion component through the light selector, so that pattern recognition can be performed in the display area. Since the light selector reflects the light emitted by the electroluminescence unit, the light emitted by the electroluminescence unit will not reach the photoelectric conversion component and affect the pattern recognition. In addition, the light utilization rate of the electroluminescence unit can be improved. In addition, the light source used for pattern recognition and the light source used for display are set independently, and the photoelectric conversion part is arranged in the light-emitting area and will not affect the display. Since the area of the light-emitting area is large, the area of the photoelectric conversion part can also be set to Larger, which can increase the amount of light received by the photoelectric conversion component, increase the photocurrent, and thereby improve the reliability of pattern recognition.
可选地，所述显示面板还包括衬底基板，所述光选择器位于所述衬底基板与所述电致发光单元之间。Optionally, the display panel further includes a base substrate, and the light selector is located between the base substrate and the electroluminescent unit.
可选地，所述衬底基板位于所述光选择器与所述电致发光单元之间。Optionally, the base substrate is located between the light selector and the electroluminescence unit.
可选地，所述电致发光单元包括薄膜晶体管以及位于所述薄膜晶体管远离所述衬底基板一侧的电致发光器件；所述光选择器包括遮光层和透光选择层，其中所述薄膜晶体管在所述衬底基板上的正投影落在所述遮光层在所述衬底基板上的正投影内。Optionally, the electroluminescent unit includes a thin film transistor and an electroluminescent device located on a side of the thin film transistor away from the base substrate; the light selector includes a light shielding layer and a light transmitting selection layer, wherein the The orthographic projection of the thin film transistor on the base substrate falls within the orthographic projection of the light shielding layer on the base substrate.
可选地，所述遮光层与所述薄膜晶体管在所述衬底基板上的正投影一一对应，所述透光选择层与所述电致发光器件在所述衬底基板上的正投影一一对应。Optionally, the light-shielding layer corresponds to an orthographic projection of the thin film transistor on the base substrate, and the light-transmitting selective layer corresponds to an orthographic projection of the electroluminescent device on the base substrate. One to one correspondence.
可选地，所述透光选择层包括光子晶体。Optionally, the light-transmitting selective layer includes a photonic crystal.
可选地，所述光子晶体包括多个周期排列的介质棒阵列。Optionally, the photonic crystal includes a plurality of periodic arrays of dielectric rods.
可选地，所述光子晶体包括周期排列的介质孔。Optionally, the photonic crystal includes periodically arranged dielectric holes.
可选地，所述发光部件出射红外光，所述电致发光单元包括：红光电致 发光单元，绿光电致发光单元，以及蓝光电致发光单元。Optionally, the light emitting component emits infrared light, and the electroluminescent unit includes: a red electroluminescent unit, a green electroluminescent unit, and a blue electroluminescent unit.
可选地，所述光电转换部件包括下列之一或其组合：电耦合器件、互补金属氧化物半导体。Optionally, the photoelectric conversion component includes one or a combination of the following: an electrical coupling device, a complementary metal oxide semiconductor.
可选地，所述纹路识别模组还包括衬底，所述发光结构和所述光电转换部件在所述衬底之上交替排列。Optionally, the pattern recognition module further includes a substrate, and the light-emitting structure and the photoelectric conversion component are alternately arranged on the substrate.
本申请实施例还提供一种用于上述显示装置的指纹识别方法，所述方法包括：An embodiment of the present application also provides a fingerprint identification method for the above-mentioned display device, and the method includes:
当确定需要进行纹路识别时，控制所述发光部件和所述光电转换部件同时开启；When it is determined that pattern recognition is required, control the light-emitting component and the photoelectric conversion component to turn on simultaneously;
对当前纹路触摸位置进行检测，确定当前纹路是否与预设纹路一致。Detect the touch position of the current pattern to determine whether the current pattern is consistent with the preset pattern.
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简要介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域的普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly explain the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative work, other drawings can be obtained from these drawings.
图1为本申请实施例提供的一种显示装置的结构示意图；FIG. 1 is a schematic structural diagram of a display device provided by an embodiment of the application;
图2为本申请实施例提供的另一种显示装置的结构示意图；2 is a schematic structural diagram of another display device provided by an embodiment of the application;
图3为本申请实施例提供的又一种显示装置的结构示意图；FIG. 3 is a schematic structural diagram of yet another display device provided by an embodiment of the application;
图4为本申请实施例提供的一种光子晶体结构示意图；4 is a schematic diagram of a photonic crystal structure provided by an embodiment of the application;
图5为本申请实施例提供的另一种光子晶体结构示意图；5 is a schematic diagram of another photonic crystal structure provided by an embodiment of the application;
图6为本申请实施例提供的一种显示装置的纹路识别方法的示意图；FIG. 6 is a schematic diagram of a method for pattern recognition of a display device according to an embodiment of the application;
图7为本申请实施例提供的又一种显示装置的示意图。FIG. 7 is a schematic diagram of another display device provided by an embodiment of the application.
本申请实施例提供了一种显示装置，如图1所示，所述显示装置包括：显示面板2，以及位于所述显示面板2远离出光面一侧的纹路识别模组1；所述显示面板2包括：位于所述显示面板2的显示区的多个电致发光单元3，以及位于所述电致发光单元3靠近所述纹路识别模组1一侧的光选择器4； 所述纹路识别模组1包括：交替排列的多个发光部件5以及多个光电转换部件6，其中所述发光部件5在所述显示面板2上的正投影位于所述显示区之内；所述发光部件5发出光的波段与所述电致发光单元3发出光的波段互不交叠；所述光选择器4构造为透过所述发光部件发出的光，且反射所述电致发光单元发出的光。An embodiment of the present application provides a display device. As shown in FIG. 1, the display device includes: a
本申请实施例提供的显示装置，在对应显示面板的显示区设置纹路识别模组，并且在显示面板设置有透过所述发光部件发出的光且反射所述电致发光单元发出的光的光选择器，这样，发光部件发出的光通过光选择器到达纹路触摸区域会被待检测纹路反射，反射后的光同样可以通过光选择器到达光电转换部件，从而可以在显示区进行纹路识别。由于光选择器反射电致发光单元发出的光，从而电致发光单元发出的光不会到达光电转换部件并对纹路识别产生影响，还可以提高电致发光单元的光利用率。并且，用于纹路识别的光源与用于显示的光源独立设置，光电转换部件设置在发光区也不会对显示造成影响，由于发光区的面积较大，因此光电转换部件的面积也可以设置为较大，从而可以提高光电转换部件的光接收量，提高光电流，进而提高纹路识别的可靠性。In the display device provided by the embodiment of the present application, a pattern recognition module is provided in the display area of the corresponding display panel, and the display panel is provided with light that transmits the light emitted by the light emitting component and reflects the light emitted by the electroluminescent unit In this way, the light emitted by the light-emitting component reaching the pattern touch area through the light selector will be reflected by the pattern to be detected, and the reflected light can also reach the photoelectric conversion component through the light selector, so that pattern recognition can be performed in the display area. Since the light selector reflects the light emitted by the electroluminescence unit, the light emitted by the electroluminescence unit will not reach the photoelectric conversion component and affect the pattern recognition, and the light utilization rate of the electroluminescence unit can also be improved. In addition, the light source used for pattern recognition and the light source used for display are set independently, and the photoelectric conversion part is arranged in the light-emitting area and will not affect the display. Since the area of the light-emitting area is large, the area of the photoelectric conversion part can also be set to Larger, which can increase the amount of light received by the photoelectric conversion component, increase the photocurrent, and thereby improve the reliability of pattern recognition.
可选地，本申请实施例提供的如图1所示的显示装置，所述显示面板2还包括衬底基板7，所述光选择器4位于所述衬底基板7与所述电致发光单元3之间。Optionally, in the display device shown in FIG. 1 provided by an embodiment of the present application, the
可选地，衬底基板为玻璃基板。Optionally, the base substrate is a glass substrate.
当然，也可以是如图2所示，本申请实施例提供的显示装置，光选择器4设置在衬底基板1背离所述电致发光单元3的一侧。Of course, as shown in FIG. 2, in the display device provided by the embodiment of the present application, the
可选地，如图3所示，本申请实施例提供的显示装置，所述电致发光单元3包括：薄膜晶体管8以及位于所述薄膜晶体管8远离所述衬底基板1一侧的电致发光器件9；所述光选择器4包括遮光层10和透光选择层11，其中所述薄膜晶体管8在所述衬底基板1上的正投影落在所述遮光层10在所述衬底基板1上的正投影内。Optionally, as shown in FIG. 3, in the display device provided by the embodiment of the present application, the electroluminescent unit 3 includes: a
可选地，遮光层10与所述薄膜晶体管8在所述衬底基板1上的正投影一一对应，所述透光选择层11与所述电致发光器件9在所述衬底基板1上的正 投影一一对应。Optionally, the light shielding layer 10 corresponds to the orthographic projection of the
本申请实施例提供的显示装置，由于包括与薄膜晶体管一一对应的遮光层10，这样遮光层10可以遮挡纹路识别模组中发光部件发出的光，从而可以避免纹路识别模组中的发光部件发出的光照射到薄膜晶体管，可以保证薄膜晶体管的工作稳定性和可靠性。The display device provided by the embodiment of the present application includes the light-shielding layer 10 corresponding to the thin film transistor one-to-one, so that the light-shielding layer 10 can shield the light emitted by the light-emitting components in the pattern recognition module, thereby avoiding the light-emitting components in the pattern recognition module. The emitted light irradiates the thin film transistor to ensure the working stability and reliability of the thin film transistor.
可选地，所述遮光层10为黑矩阵。Optionally, the light shielding layer 10 is a black matrix.
本申请实施例提供的如图1～3所示的显示装置，薄膜晶体管8包括：栅极13，栅绝缘层14，有源层15，源极16，漏极17，以及平坦化层18。电致发光器件9包括：阳极19，阴极20，以及位于阳极19和阴极20之间的发光功能层21。阳极19通过贯穿平坦化层18的过孔与漏极17电连接。显示面板还包括封装电致发光器件的封装结构(图中未示出)。In the display device shown in FIGS. 1 to 3 provided by the embodiment of the present application, the
由于本申请实施例提供的显示装置设置有光选择器，光选择器可以反射电致发光器件发出的光，因此电致发光器件无需设置反射层，电致发光器件的阳极的材料可以是透明材料。Since the display device provided in the embodiment of the application is provided with a light selector, the light selector can reflect the light emitted by the electroluminescent device, so the electroluminescent device does not need to be provided with a reflective layer, and the anode material of the electroluminescent device can be a transparent material .
本申请实施例提供的如图1～3所示的显示装置，以底栅结构的薄膜晶体管为例进行举例说明，当然薄膜晶体管还可以是其他结构，例如顶栅结构，本申请不进行限制。The display devices shown in FIGS. 1 to 3 provided by the embodiments of the present application are illustrated by taking a thin film transistor with a bottom gate structure as an example. Of course, the thin film transistor may also have other structures, such as a top gate structure, which is not limited in this application.
可选地，本申请实施例提供的如图1～3所示的显示装置，所述透光选择层11包括光子晶体。Optionally, in the display device shown in FIGS. 1 to 3 provided by the embodiment of the present application, the light-transmitting
即本申请实施例提供的显示装置利用光子晶体透过所述发光部件发出的光，且反射所述电致发光单元发出的光。That is, the display device provided by the embodiment of the present application uses a photonic crystal to transmit the light emitted by the light-emitting component and reflect the light emitted by the electroluminescent unit.
可选地，如图4所示，所述光子晶体包括多个周期排列的介质棒22阵列。Optionally, as shown in FIG. 4, the photonic crystal includes a plurality of periodic arrays of dielectric rods 22.
或者，可选地，如图5所示，所述光子晶体包括周期排列的介质孔34。例如可以对薄膜采用刻蚀工艺打孔形成光子晶体。Or, optionally, as shown in FIG. 5, the photonic crystal includes periodically arranged dielectric holes 34. For example, an etching process can be used to perforate the film to form a photonic crystal.
需要说明的是，光子晶体是指具有光子带隙特性的人造周期性电介质结构。所谓的光子带隙是指某一频率范围的波不能在此周期性结构中传播，即这种结构本身存在禁带。可以通过调节介质棒或介质孔的直径以及间距，来实现不同频率与带宽的光子禁带。光子禁带是一个频率区间，当入射光的波段落入该区间时，会被全反射，否则会通过光子晶体。It should be noted that the photonic crystal refers to an artificial periodic dielectric structure with photonic band gap characteristics. The so-called photonic band gap means that waves of a certain frequency range cannot propagate in this periodic structure, that is, the structure itself has a band gap. The photonic band gap of different frequencies and bandwidths can be realized by adjusting the diameter and spacing of dielectric rods or dielectric holes. The photonic band gap is a frequency range. When the wave of incident light enters this range, it will be totally reflected, otherwise it will pass through the photonic crystal.
本申请实施例提供的显示装置，光子晶体需要实现电致发光单元发出的光的光子禁带，即电致发光单元发出的光到达光子晶体全反射，而光学部件发出的光到达光子晶体可以通过。In the display device provided by the embodiment of the application, the photonic crystal needs to realize the photonic band gap of the light emitted by the electroluminescence unit, that is, the light emitted by the electroluminescence unit reaches the photonic crystal and is totally reflected, and the light emitted by the optical component reaches the photonic crystal through .
可选地，所述发光部件出射红外光，所述电致发光单元包括：红光电致发光单元，绿光电致发光单元，以及蓝光电致发光单元。Optionally, the light emitting component emits infrared light, and the electroluminescent unit includes a red electroluminescent unit, a green electroluminescent unit, and a blue electroluminescent unit.
即光子晶体透过红外光，且反射红光、绿光以及蓝光。That is, the photonic crystal transmits infrared light and reflects red, green, and blue light.
本申请实施例提供的如图1～3所示的显示装置，仅示出两个电致发光单元进行举例说明，具体实施时，发光单元的数量以及红光电致发光单元、绿光电致发光单元、蓝光电致发光单元的排列方式可以根据实际需要进行选择。The display devices shown in Figures 1 to 3 provided in the embodiments of the application only show two electroluminescent units for illustration. In specific implementation, the number of light-emitting units and the red electroluminescent unit and the green electroluminescent unit The arrangement of the blue electroluminescence unit can be selected according to actual needs.
可选地，所述光电转换部件包括下列之一或其组合：电耦合器件(Charge-coupled Device，CCD)、互补金属氧化物半导体(Complementary Metal Oxide Semiconductor，CMOS)。Optionally, the photoelectric conversion component includes one or a combination of the following: an electrically coupled device (Charge-coupled Device, CCD), and a complementary metal oxide semiconductor (Complementary Metal Oxide Semiconductor, CMOS).
光电转换部件可以实现将光信号转化为电信号即可，从而可以根据电信号进行纹路识别。The photoelectric conversion component can convert the optical signal into an electrical signal, so that the pattern can be identified based on the electrical signal.
可选地，所述纹路识别模组1还包括衬底12，所述发光结构5和所述光电转换部件6在所述衬底12之上交替排列。Optionally, the pattern recognition module 1 further includes a
可选地，本申请实施例提供的如图1～3所示显示装置，在电致发光单元3的发光区设置所述光电转换部件6。Optionally, in the display device shown in FIGS. 1 to 3 provided by the embodiment of the present application, the
本申请实施例提供的显示装置，用于纹路识别的光源与用于显示的光源独立设置，光电转换部件设置在发光区也不会对显示造成影响，从而可以将光电转换部件设置在发光区，由于发光区的面积较大，因此光电转换部件的面积也可以设置为较大，从而可以提高光电转换部件的光接收量，提高光电流，进而提高纹路识别的可靠性。In the display device provided by the embodiments of the present application, the light source used for pattern recognition and the light source used for display are arranged independently, and the photoelectric conversion component is arranged in the light-emitting area without affecting the display, so that the photoelectric conversion component can be arranged in the light-emitting area. Since the area of the light-emitting region is larger, the area of the photoelectric conversion component can also be set to be larger, so that the light receiving amount of the photoelectric conversion component can be increased, the photocurrent can be increased, and the reliability of the pattern recognition can be improved.
本申请实施例提供的显示装置，例如可以是手机、平板等装置。The display device provided by the embodiment of the present application may be, for example, a mobile phone, a tablet, or the like.
本申请实施例提供的一种上述显示装置的指纹识别方法，如图6所示，所述方法包括：An embodiment of the present application provides a fingerprint identification method for the above display device. As shown in FIG. 6, the method includes:
S101、当确定需要进行纹路识别时，控制所述发光部件和所述光电转换部件同时开启；S101. When it is determined that pattern recognition is required, control the light-emitting component and the photoelectric conversion component to be turned on simultaneously;
S102、对当前纹路触摸位置进行检测，确定当前纹路是否与预设纹路一 致。S102. Detect the touch position of the current pattern to determine whether the current pattern is consistent with the preset pattern.
可选地，当确定需要进行纹路识别时，控制所述发光部件和所述光电转换部件同时开启的同时，该方法还包括：控制电致发光单元开启。Optionally, when it is determined that pattern recognition is required, while controlling the light-emitting component and the photoelectric conversion component to be turned on at the same time, the method further includes: controlling the electroluminescent unit to turn on.
纹路例如可以是指纹或掌纹。The lines may be fingerprints or palm prints, for example.
以显示装置为手机进行举例说明，如图7所示，可以通过按下解锁侧键27触发纹路识别操作，即当用户按下解锁侧键，屏幕点亮处于锁屏状态，同时控制所述发光部件和所述光电转换部件同时开启，当手指28在纹路识别区29发生触摸，纹路识别模组便可以对纹路进行检测，若当前纹路与预设纹路一致，则屏幕解锁，若当前纹路与预设纹路不一致则不解锁。Taking the display device as a mobile phone as an example, as shown in Figure 7, the pattern recognition operation can be triggered by pressing the unlock side key 27, that is, when the user presses the unlock side key, the screen lights up in the locked state, and the light is controlled at the same time The component and the photoelectric conversion component are turned on at the same time. When the
接下来以如图3所示的显示装置为例，对纹路检测识别原理进行举例说明。当将纹路26放在纹路识别区时，由于纹路存在凹点和凸点，所述光线到达凹点和凸点时会被该纹路26反射，反射后同样经发光功能层21、透光选择层11和衬底基板7被光电转换部件6所捕获，并转化为电学信号。由于凹点和凸点反射出光线的能量和方向有所差异，因而光电转换部件6所产生的电学信号会有所差异，从而识别凸点和凹点，实现纹路识别的功能，进而可以判断当前纹路与预设纹路是否一致。Next, the display device shown in FIG. 3 is taken as an example to illustrate the principle of pattern detection and recognition. When the
综上所述，本申请实施例提供的显示装置及其纹路识别方法，在对应显示面板的显示区设置纹路识别模组，并且在显示面板设置有透过所述发光部件发出的光且反射所述电致发光单元发出的光的光选择器，这样，发光部件发出的光通过光选择器到达纹路触摸区域会被待检测纹路反射，反射后的光同样可以通过光选择器到达光电转换部件，从而可以在显示区进行纹路识别。由于光选择器反射电致发光单元发出的光，从而电致发光单元发出的光不会到达光电转换部件并对纹路识别产生影响，还可以提高电致发光单元的光利用率。并且，用于纹路识别的光源与用于显示的光源独立设置，光电转换部件设置在发光区也不会对显示造成影响，由于发光区的面积较大，因此光电转换部件的面积也可以设置为较大，从而可以提高光电转换部件的光接收量，提高光电流，进而提高纹路识别的可靠性。In summary, in the display device and its pattern recognition method provided by the embodiments of the present application, a pattern recognition module is provided in the display area of the corresponding display panel, and the display panel is provided with light transmitted through the light emitting component and reflected The light selector for the light emitted by the electroluminescent unit, in this way, the light emitted by the light-emitting component that reaches the pattern touch area through the light selector will be reflected by the pattern to be detected, and the reflected light can also reach the photoelectric conversion component through the light selector. Thus, pattern recognition can be performed in the display area. Since the light selector reflects the light emitted by the electroluminescence unit, the light emitted by the electroluminescence unit will not reach the photoelectric conversion component and affect the pattern recognition, and the light utilization rate of the electroluminescence unit can also be improved. In addition, the light source used for pattern recognition and the light source used for display are set independently, and the photoelectric conversion part is arranged in the light-emitting area and will not affect the display. Since the area of the light-emitting area is large, the area of the photoelectric conversion part can also be set to Larger, which can increase the amount of light received by the photoelectric conversion component, increase the photocurrent, and thereby improve the reliability of pattern recognition.
显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请的这些修改和变型属于本申请权利要 求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。Obviously, those skilled in the art can make various changes and modifications to the application without departing from the spirit and scope of the application. In this way, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, then this application is also intended to include these modifications and variations.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090051283A1 (en) * | 2007-08-21 | 2009-02-26 | Cok Ronald S | Led device having improved contrast |
| CN107145869A (en) * | 2017-05-09 | 2017-09-08 | 上海箩箕技术有限公司 | Display module |
| CN108122941A (en) * | 2016-11-28 | 2018-06-05 | 南昌欧菲生物识别技术有限公司 | Organic light-emitting diode (OLED) display screen fingerprint identification device and electronic equipment |
| CN108766987A (en) * | 2018-05-31 | 2018-11-06 | 上海天马有机发光显示技术有限公司 | A kind of display device and its driving method |
| CN110164922A (en) * | 2019-04-16 | 2019-08-23 | 福州京东方光电科技有限公司 | A kind of display device and its lines recognition methods |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105678255B (en) * | 2016-01-04 | 2019-01-08 | 京东方科技集团股份有限公司 | A kind of optical fingerprint identification display screen and display device |
| KR101981318B1 (en) * | 2017-04-19 | 2019-05-23 | 크루셜텍(주) | Transparent Fingerprint Image Scanning Panel and Display Apparatus Comprising The Same |
| CN109299631B (en) * | 2017-07-24 | 2021-03-23 | 华为技术有限公司 | A screen and terminal |
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2019
- 2019-04-16 CN CN201910302990.7A patent/CN110164922B/en active Active
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2020
- 2020-03-27 WO PCT/CN2020/081790 patent/WO2020211619A1/en not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090051283A1 (en) * | 2007-08-21 | 2009-02-26 | Cok Ronald S | Led device having improved contrast |
| CN108122941A (en) * | 2016-11-28 | 2018-06-05 | 南昌欧菲生物识别技术有限公司 | Organic light-emitting diode (OLED) display screen fingerprint identification device and electronic equipment |
| CN107145869A (en) * | 2017-05-09 | 2017-09-08 | 上海箩箕技术有限公司 | Display module |
| CN108766987A (en) * | 2018-05-31 | 2018-11-06 | 上海天马有机发光显示技术有限公司 | A kind of display device and its driving method |
| CN110164922A (en) * | 2019-04-16 | 2019-08-23 | 福州京东方光电科技有限公司 | A kind of display device and its lines recognition methods |
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| Publication number | Publication date |
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| CN110164922A (en) | 2019-08-23 |
| CN110164922B (en) | 2022-05-20 |
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