WO2018176819A1 - 显示基板及显示装置 - Google Patents

显示基板及显示装置 Download PDF

Info

Publication number
WO2018176819A1
WO2018176819A1 PCT/CN2017/107351 CN2017107351W WO2018176819A1 WO 2018176819 A1 WO2018176819 A1 WO 2018176819A1 CN 2017107351 W CN2017107351 W CN 2017107351W WO 2018176819 A1 WO2018176819 A1 WO 2018176819A1
Authority
WO
WIPO (PCT)
Prior art keywords
optical
light
pixel
display substrate
array
Prior art date
Application number
PCT/CN2017/107351
Other languages
English (en)
French (fr)
Inventor
顾品超
董学
王海生
刘英明
许睿
李昌峰
郭玉珍
秦云科
Original Assignee
京东方科技集团股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 京东方科技集团股份有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US15/774,436 priority Critical patent/US20200285826A1/en
Publication of WO2018176819A1 publication Critical patent/WO2018176819A1/zh

Links

Images

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/005—Diaphragms
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
    • G02B5/3058—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state comprising electrically conductive elements, e.g. wire grids, conductive particles
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/13338—Input devices, e.g. touch panels
    • 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
    • H10K59/50—OLEDs integrated with light modulating elements, e.g. with electrochromic elements, photochromic elements or liquid crystal elements
    • 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
    • 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

Definitions

  • the present disclosure relates to a display substrate and a display device.
  • Fingerprints are invariant features that are inherent in the human body, unique and distinguishable from others. It consists of a series of ridges and valleys on the surface of the fingertip skin. The details of the composition of these ridges and valleys usually include the bifurcation of the ridges, the ends of the ridges, the arches, the tent-shaped arches, the left-handedness, the right-handedness, the spiral or the double-rotation, which determine the uniqueness of the fingerprint pattern.
  • the fingerprint recognition technology developed by it is an early technology used as personal authentication. According to different methods of fingerprint acquisition and input, it is widely used and well-known: optical imaging, thermal sensors, human infrared sensors, and the like.
  • Embodiments of the present disclosure relate to a display substrate, including:
  • optical structure located above the array of optical sensing devices; the optical structure comprising a plurality of optical units, each of the optical units comprising a light blocking region and a light transmitting region;
  • a pixel array is disposed over the optical structure, the pixel array including a plurality of pixel units, each of the pixel units including a different color sub-pixel.
  • the width of each of the optical units is a times the width of one of the sub-pixels of the pixel unit, and a is an integer greater than or equal to 1.
  • the width of each of the optical units is im times the width of one sub-pixel of the pixel unit, i is the number of sub-pixels in each pixel unit, and m is an integer greater than or equal to 1. Change In other words, the width of each of the optical units is m times the width of one of the pixel units.
  • a light transmissive region in each of the optical units is disposed corresponding to n optical sensing devices in the array of optical sensing devices; wherein n is an integer greater than or equal to 1.
  • the light transmissive regions of the plurality of optical units are disposed corresponding to one of the optical sensing devices in the array of optical sensing devices.
  • the light shielding area of each of the optical units is sequentially provided with a first light shielding layer, a first light transmissive layer, and a second light shielding layer in a direction away from the optical sensing device array.
  • each of the light transmissive regions of the optical unit is provided with a second light transmissive layer, and each of the first light transmissive layer and the second light transmissive layer is an integrally formed structure.
  • the material of the first light shielding layer and the second light shielding layer is a black matrix or a metal; the material of the first light transmission layer is polyimide or glass.
  • each of the optical units is provided with a light shielding body, and the through holes defined by any two adjacent light shielding bodies are a light transmission area.
  • Embodiments of the present disclosure relate to a display device including the above display substrate.
  • the display device further includes an encapsulation layer, a polarizer, an optical glue, and a cover glass disposed in sequence in a direction away from the pixel array.
  • FIG. 1 is a schematic structural diagram of a display substrate of one sub-pixel of an optical unit corresponding to a pixel unit in some embodiments of the present disclosure
  • FIG. 2 is a structural diagram of a display substrate of one optical unit corresponding to one pixel unit in some embodiments of the present disclosure
  • FIG. 3 is a structural diagram of a display substrate of an optical unit corresponding to a plurality of pixel units in some embodiments of the present disclosure
  • FIG. 4 is a schematic diagram of an optical structure in a display substrate in accordance with some embodiments of the present disclosure.
  • FIG. 5 is a schematic diagram of an optical structure in a display substrate in accordance with some embodiments of the present disclosure.
  • FIG. 6 is a schematic diagram of a light transmissive region of an optical unit in a display substrate corresponding to an optical sensing device according to some embodiments of the present disclosure
  • FIG. 7 is a schematic diagram of a light transmissive area of one optical unit in a display substrate corresponding to a plurality of optical sensing devices according to some embodiments of the present disclosure
  • FIG. 8 is a schematic diagram of a light transmissive region of a plurality of optical units in a display substrate corresponding to an optical sensing device according to some embodiments of the present disclosure
  • FIG. 9 is a schematic structural diagram of a display device according to still other embodiments of the present disclosure.
  • a related art touch panel having a fingerprint recognition function generally includes: an array of optical sensing devices and a pixel array located above the array of optical sensing devices, and the pixel array includes a plurality of pixel units, each pixel unit including a plurality of sub-different colors Pixel. Since the area of the metal lines under each sub-pixel (these metals are also the driving lines for driving the sub-pixels) is different, it will cause uniform light emitted by each sub-pixel after the touch occurs, passing the finger. After being reflected into the optical path of the array of optical sensing devices, although the sub-pixels in the pixel array are uniformly distributed, the transmittance of the light emitted by the different sub-pixels from the side of the respective lower metal lines is different.
  • the optical sensing device in the optical sensing array should have received the same proportion of light reflected by the finger, but now receives different proportions of reduced intensity light.
  • the image acquisition capability of the optical sensing device is deteriorated.
  • the reflected light of the finger is received, it will cause blurring of the valley and ridge of the fingerprint, and it is impossible to distinguish the valley and the ridge of the fingerprint, and it is difficult to complete the acquisition of the fingerprint image.
  • some embodiments of the present disclosure provide a display substrate including an optical sensing device array 1 , an optical structure 2 above the optical sensing device array 1 , and a pixel array above the optical structure 2 .
  • the optical structure 2 includes a plurality of optical units 20, each of which includes a light blocking area Q1 and a light transmitting area Q2.
  • the pixel array 3 includes a plurality of pixel units 30, each of which includes different color sub-pixels.
  • each optical unit 20 in the display substrate of the embodiment includes the light-transmitting region Q2 and the light-shielding region Q1, that is, only the light-transmitting region Q2 can transmit light, when the display substrate is touched, the optical unit can be restricted.
  • the light of the sub-pixels in the pixel unit 30 above 20 is illuminated to the touch object (including the finger) Afterwards, the angle of the reflected light is such that only a certain angle of light can pass through the optical unit 20 to the lower optical sensing device array 1, so that the object touching the display substrate can be in the optical sensing device array. Get a clear image without blurring due to crosstalk from light in different directions.
  • the pixel array 3 in this embodiment is an organic electroluminescent diode (OLED) pixel array 3.
  • OLED organic electroluminescent diode
  • the "width of the optical unit 20" in the present embodiment refers to the distance of the optical unit 20 in the row direction of the pixel array 3; "the width of the pixel unit 30" refers to the distance of the pixel unit 30 in the row direction of the pixel array 3;
  • the “width of the sub-pixel” refers to the distance of the sub-pixels in the row direction of the pixel array 3.
  • the pixel array 3 includes a driving layer 32 (forming a pixel driving circuit) on which the substrate 31 is disposed on the substrate 31, and a pixel unit 30 located above the driving layer 32.
  • the number of sub-pixels in each pixel unit 30 is i.
  • An OLED light-emitting device composed of a light-emitting layer between the anode and the anode.
  • each of the sub-pixels further includes a pixel driving circuit generally located under the OLED light emitting device, and a metal signal line connected to the pixel driving circuit to provide a driving signal for the OLED light emitting device.
  • a pixel driving circuit generally located under the OLED light emitting device
  • a metal signal line connected to the pixel driving circuit to provide a driving signal for the OLED light emitting device.
  • each optical unit 20 is im times the width of one sub-pixel of the pixel unit 30, i is the number of sub-pixels in each pixel unit, and m is an integer greater than or equal to 1. In other words, the width of each optical unit 20 is m times the width of one pixel unit 30.
  • the optical structure 2 is disposed in the display substrate of the present embodiment, and the width of each of the optical units 20 in the optical structure 2 is im times the width of one sub-pixel of the pixel unit 30, i is in each pixel unit
  • the number of sub-pixels, and m is an integer greater than or equal to 1, that is, one optical unit 20 is disposed corresponding to m pixel units 30.
  • the total transmittance of the light reflected from the lower side of the metal signal line of each sub-pixel of each pixel unit 30 is the same.
  • each sub-pixel of each of the plurality of pixel units 30 has a metal signal line from below. The total transmittance of the light reflected off is also the same, so the light transmitted through every m pixel units 30 is the same.
  • the ratio of the reduction of the light passing through the corresponding optical unit 20 is the same, and the intensity of the light obtained after the optical structure 2 reaches the lower optical sensing device array 1 is also uniformly reduced, so the optical sensing device
  • the acquisition of the image of the object on the display substrate is uniform.
  • the valley and the ridge in the fingerprint of the finger can be acquired, thereby realizing the identification of the fingerprint.
  • one optical unit 20 may correspond to a plurality of display units, that is, m>1. This type of arrangement can roughly recognize objects with large lines such as palm prints.
  • the image obtained by the array during optical sensing is coarser in detail, but the overall structure is identifiable, and the information can be identified is not particularly large, thereby saving the processing time of the terminal, making the terminal more rapid and more power-saving. This is very important in mobile terminals.
  • the light shielding area Q1 may include a first light shielding layer 21, which is sequentially disposed in a direction away from the optical sensing device array 1, and a first The light transmissive layer 23 and the second light shielding layer 22 .
  • the optical unit 20 is composed of two layers of light-shielding materials sandwiched by a light-transmitting material.
  • the material of the first light shielding layer 21 and the second light shielding layer 22 is a black matrix or a metal. Of course, it can also be other composite materials as long as it is opaque.
  • the material of the first light transmissive layer 23 is polyimide or glass.
  • the first light transmissive layer 23 may be an air layer, or may be other composite materials as long as it is transparent.
  • the first light-transmitting layer may be formed at the same time.
  • the second light transmissive layer 24 is formed. At this time, each of the first light transmissive layer 23 and the second light transmissive layer 24 are integrally formed, and the materials of the two are the same. This can make the preparation process of the optical unit 20 simple. Will.
  • each optical unit 20 can also adopt the structure of the light shielding body 25, and the through holes defined by any two adjacent light shielding bodies 25 are a light transmitting area Q2, as shown in FIG.
  • Such a structure can be realized by depositing a whole layer of light-shielding material and etching to form a via hole at a position corresponding to the light-transmitting region Q2 of each optical unit 20.
  • the proportion of the light-shielding region Q1 and the light-transmitting region Q2 in each optical unit 20 can be changed, that is, the light-shielding region Q1 is wider, and the corresponding light-transmitting region Q2 is narrower. It may be that the light-shielding region Q1 is narrower and the corresponding light-transmitting region Q2 is wider.
  • the width of the light-shielding region Q1 in the optical unit 20 is relatively large so as to cope with different thicknesses of the OLED module and the thickness of the opaque material in the optical unit 20, thereby limiting the angle of light from the pixel unit 30 above, so that Only a certain angle of light can pass through the optical structure 2 to reach the optical sensing device array 1.
  • the light-transmitting region Q2 in each optical unit 20 is disposed corresponding to the n optical sensing devices 10 in the optical sensing device array 1, wherein n is an integer greater than or equal to 1. That is, the light-transmitting region Q2 in one optical unit 20 is disposed corresponding to an optical sensing device 10, as shown in FIG. 6, or the light-transmitting region Q2 in one optical unit 20 is disposed corresponding to the plurality of optical sensing devices 10, such as Figure 7 shows. Of course, it is also possible that the light-transmitting region Q2 of the plurality of optical units 20 is disposed corresponding to one of the optical sensing devices 10 in the optical sensing device array 1, as shown in FIG.
  • the size of the optical sensing device 10 in the various implementations described above depends on the material of the optical sensing device 10 and the size of the display substrate.
  • the optical sensing device array 1 may be composed of a thin film transistor and an optical sensing device 10, and the optical sensing device 10 may be a photovoltaic device.
  • the display device further includes an encapsulation layer 4, a polarizer, an optical adhesive 5, and a cover glass 6 which are sequentially disposed in a direction away from the pixel array 3.
  • each of the optical units 20 includes the light-shielding region Q2 light-shielding region Q1, that is, Only the light-transmitting region Q2 can transmit light, so when the display substrate is touched, the light from the sub-pixels in the pixel unit 30 above the optical unit 20 can be restricted from being reflected to the touch object (including the finger).
  • the angle of light exiting, so that only a certain angle of light can pass through this optics The unit 20 reaches the underlying optical sensing device array 1 so that objects touching the display substrate are able to obtain a sharp image in the optical sensing array without blurring due to crosstalk from different directions.
  • the width of each optical unit 20 is a multiple of the width of one sub-pixel of the pixel unit 30, and a is an integer greater than or equal to 1.
  • the width of each optical unit 20 in the optical structure 2 may be im times the width of one of the sub-pixels of the pixel unit 30, i being the number of sub-pixels in each pixel unit,
  • m is an integer greater than or equal to 1. That is, one optical unit 20 can be disposed corresponding to the m pixel units 30.
  • the total transmittance of the light reflected from the lower side of the metal signal line of each sub-pixel of each pixel unit 30 is the same.
  • each sub-pixel of each of the plurality of pixel units 30 has a metal signal line from below.
  • the total transmittance of the light reflected off is also the same, so the light transmitted through every m pixel units 30 is the same.
  • the ratio of the reduction of the light passing through the corresponding optical unit 20 is the same, and the intensity of the light obtained after the optical structure 2 reaches the lower optical sensing device array 1 is also uniformly reduced, so the optical sensing device
  • the acquisition of the image of the object on the display substrate is uniform. In particular, if the object is a finger, the valley and the ridge in the fingerprint of the finger can be acquired, thereby realizing the identification of the fingerprint.
  • the display device may be an electroluminescent display device, such as an electronic paper, an OLED panel, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like, or any product or component having a display function.
  • an electroluminescent display device such as an electronic paper, an OLED panel, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like, or any product or component having a display function.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • General Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Nonlinear Science (AREA)
  • Multimedia (AREA)
  • Inorganic Chemistry (AREA)
  • Sustainable Development (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mathematical Physics (AREA)
  • Image Input (AREA)
  • Electroluminescent Light Sources (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

一种显示基板及显示装置，其显示基板包括光学感应器件阵列（1）；位于光学感应器件阵列（1）上方的光学结构（2）；光学结构（2）包括多个光学单元（20），每个光学单元（20）均包括遮光区（Q1）和透光区（Q2）；位于光学结构（2）上方的像素阵列（3），像素阵列（3）包括多个像素单元（30），每个像素单元（30）包括不同颜色子像素。

Description

显示基板及显示装置
相关申请的交叉引用
本申请要求于2017年03月28日递交的中国专利申请201710192831.7号的优先权，在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。
技术领域
本公开涉及显示基板及显示装置。
背景技术
指纹是人体与生俱来、独一无二并可与他人相区别的不变特征。它是由指端皮肤表面上的一系列脊和谷组成的。这些脊和谷的组成细节通常包括脊的分叉、脊的末端、拱形、帐篷式的拱形、左旋、右旋、螺旋或双旋等细节，决定了指纹图案的唯一性。由之发展起来的指纹识别技术是较早被作为个人身份验证的技术，根据指纹采集、输入的方式不同，目前广泛应用并被熟知的有：光学成像、热敏传感器、人体红外传感器等。
发明内容
本公开的实施方式涉及显示基板，包括：
光学感应器件阵列；
光学结构，位于所述光学感应器件阵列上方；所述光学结构包括多个光学单元，每个所述光学单元均包括遮光区和透光区；
像素阵列，位于所述光学结构上方，所述像素阵列包括多个像素单元，每个所述像素单元均包括不同颜色子像素。
可选地，每个所述光学单元的宽度为所述像素单元的一个所述子像素的宽度的a倍，a为大于或等于1的整数。
可选地，每个所述光学单元的宽度为所述像素单元的一个子像素的宽度的im倍，i为每个像素单元中的子像素的数目，并且m为大于或等于1的整数。换 句话说，每个所述光学单元的宽度为一个所述像素单元的宽度的m倍。
可选地，每个所述光学单元中的透光区与所述光学感应器件阵列中的n个光学感应器件对应设置；其中，n为大于或等于1的整数。
可选地，多个所述光学单元中的透光区与所述光学感应器件阵列中的1个光学感应器件对应设置。
可选地，每个所述光学单元的遮光区在沿背离所述光学感应器件阵列的方向上，依次设置有第一遮光层、第一透光层、第二遮光层。
进一步可选地，每个所述光学单元中的透光区均设置有第二透光层，且各个所述第一透光层与所述第二透光层为一体成型结构。
进一步可选地，所述第一遮光层和所述第二遮光层的材料为黑矩阵或者金属；所述第一透光层的材料为聚酰亚胺或者玻璃。
可选地，每个所述光学单元的遮光区设置有遮光体，任意两相邻的所述遮光体限定出的通孔为一个透光区。
本公开的实施方式涉及显示装置，其包括上述的显示基板。
可选地，所述显示装置还包括沿背离所述像素阵列的方向上，依次设置的封装层、偏光片、光学胶以及保护玻璃。
附图说明
图1为本公开的一些实施例中一个光学单元对应像素单元的一个子像素的显示基板的结构示意图；
图2为本公开的一些实施例中一个光学单元对应一个像素单元的显示基板的结构图；
图3为本公开的一些实施例中一个光学单元对应多个像素单元的显示基板的结构图；
图4为本公开的一些实施例的显示基板中的光学结构的示意图；
图5为本公开的一些实施例的显示基板中的光学结构的示意图；
图6为本公开的一些实施例的显示基板中一个光学单元的透光区对应一个光学感应器件的示意图；
图7为本公开的一些实施例的显示基板中一个光学单元的透光区对应多个光学感应器件的示意图；
图8为本公开的一些实施例的显示基板中多个光学单元的透光区对应一个光学感应器件的示意图；
图9为本公开的另一些实施例的显示装置的结构示意图。
具体实施方式
为使本领域技术人员更好地理解本公开的技术方案，下面结合附图和具体实施方式对本公开作进一步详细描述。
相关技术的具有指纹识别功能的触控基板的一般包括：光学感应器件阵列和位于光学感应器件阵列上方的像素阵列，而像素阵列包括多个像素单元，每个像素单元包括多个不同颜色的子像素。由于每个子像素下方的金属线(这些金属也就是用于驱动子像素工作的驱动线)的面积是不同的，因此将会导致在发生触摸之后，每个子像素所发出的均匀的光线，经过手指之后反射至光学感应器件阵列的光程中，虽然像素阵列中的子像素是均匀分布的，但是不同子像素所发出的光从各自下方的金属线的一旁透过后的透过率是不同的。从而造成光学感应阵列中的光学感应器件原本应该接收到手指反射的同等比例的光的强度，现在却接收到了不同比例的强度的减弱的光。如此一来，会导致光学感应器件的图像获取能力变差。当接收到的手指的反射的光时，将会造成指纹的谷和脊的模糊，不能够分辨指纹的谷和脊，难以完成指纹图像的获取。
如图1所示，本公开的一些实施例提供了一种显示基板，包括光学感应器件阵列1、位于所述光学感应器件阵列1上方的光学结构2、位于所述光学结构2上方的像素阵列3。其中，光学结构2包括多个光学单元20，每个光学单元20均包括遮光区Q1和透光区Q2。像素阵列3包括多个像素单元30，所述像素单元30均包括不同颜色子像素。
由于本实施例的显示基板中每个光学单元20包括透光区Q2和遮光区Q1，也就是说只有透光区Q2可以将光透过，因此在显示基板发生触摸时，可以限制来自光学单元20上方的像素单元30中的子像素的光照射至触摸物体(包括手指) 后，被反射出的光的出射角度，使得只有一定角度的光线才能透过这个光学单元20到达下方的光学感应器件阵列1上，从而使得对显示基板进行触摸的物体能够在光学感应器件阵列中得到清晰的图像，不会因为来自不同方向的光线串扰产生模糊。
在此需要说明的是，本实施例中的像素阵列3为有机电致发光二极管(OLED)像素阵列3。本实施例中的“光学单元20的宽度”是指光学单元20沿像素阵列3的行方向上的距离；“像素单元30的宽度”是指像素单元30沿像素阵列3的行方向上的距离；“子像素的宽度”是指子像素沿像素阵列3的行方向上的距离。像素阵列3包括基底31设置在基底31上的驱动层32(形成像素驱动电路)和位于驱动层32之上的像素单元30。每个像素单元30中的子像素的个数为i。在下述内容中均以每个像素单元30包括红色子像素，绿色子像素，蓝色子像素(即，i＝3)为例进行说明，其中每个子像素包括由阴极、阳极、以及设置在阴极和阳极之间的发光层构成的OLED发光器件。
在本公开的一个实施例中，每个光学单元20的宽度为像素单元30的一个子像素的宽度的a倍，a为大于或等于1的整数。如图1所示，每个光学单元20与像素单元30的一个子像素对应设置。也就是说，每个光学单元20的宽度为像素单元30的一个子像素的宽度的1倍，即，a＝1。在本申请的该实施例中，每个光学单元20还可以与a个子像素对应设置，即，每个光学单元20的宽度还可以为像素单元30的一个子像素的宽度的a倍。
另外，每个子像素还包括通常位于OLED发光器件下方的像素驱动电路，以及与像素驱动电路连接，为OLED发光器件提供驱动信号的金属信号线。虽然位于不同颜色的子像素下方的金属信号线所占的面积不同，即每个OLED发光器件从下方的金属信号线一旁所反射出的光透过率不同，但是对于每一个像素单元30而言，该像素单元30中的各个OLED发光器件从下方的金属信号线一旁所反射出的光的总透过率是相同的。
可选的，每个光学单元20的宽度为像素单元30的一个子像素的宽度的im倍，i为每个像素单元中的子像素的数目，并且m为大于或等于1的整数。换句话说，每个光学单元20的宽度为一个像素单元30的宽度的m倍。
在本实施例的显示基板中设置光学结构2，且光学结构2中的每个光学单元20的宽度为所述像素单元30的一个子像素的宽度的im倍，i为每个像素单元中的子像素的数目，并且m为大于或等于1的整数，也就是说，一个光学单元20与m个像素单元30对应设置。而且每一个像素单元30的各个子像素从下方的金属信号线一旁所反射出的光的总透过率是相同的，同理，每多个像素单元30的各个子像素从下方的金属信号线一旁所反射出的光的总透过率也是相同的，因此每m个像素单元30中透过的光是相同的。之后，光经过下方的对应的光学单元20的减小的比例是一样的，再经过光学结构2到达下方的光学感应器件阵列1后获得的光线强度也是均匀的减小之后的，所以光学感应器件30对于显示基板上的物体图像的获取是均匀的。特别的是，如果物体是手指，就可以获取手指的指纹中的谷和脊，从而实现指纹的识别。
其中，如图2所示，在本实施例的显示基板的光学结构2中一个光学结构2可选地与一个像素单元30对应设置，也即m＝1(此时，a＝i)，此时可以识别比较微小精细的图像如指纹等。如图3所示，当然，也可以是一个光学单元20对应着多个显示单元，也即m＞1，该种设置方式可以粗略的识别掌纹等纹路较大的物体。此时，光学感应期间阵列获得的图像细节较粗，但是整体的结构是可以识别的，能够识别信息不是特别的多，从而节省了终端的处理时间，使得终端更加的迅速，而且更加的省电，这一点在移动终端是非常重要的。
具体的，如图4所示，对于每一个光学单元20而言，其遮光区Q1均可以包括在沿背离所述光学感应器件阵列1的方向上，依次设置的第一遮光层21、第一透光层23、第二遮光层22。也即光学单元20由两层遮光材料夹一层透光材料构成。其中，所述第一遮光层21和所述第二遮光层22的材料为黑矩阵或者金属。当然也可以是其它复合材料，只要不透光即可。第一透光层23的材料为聚酰亚胺或者玻璃。当然第一透光层23可以是空气层，也可以是当然也可以是其它复合材料，只要透光即可。而对于每一个光学单元20的透光区Q2，由于透光区Q2是让光线透过的，因此在透光区Q2中可以不设置任何材料，当然也可以在形成第一透光层的同时形成第二透光层24，此时各个所述第一透光层23与所述第二透光层24为一体成型结构，这二者的材料相同。这样可以使得光学单元20的制备工艺简 便。
当然，每个光学单元20的遮光区Q1也可以采用遮光体25的结构，且任意两相邻的所述遮光体25限定出的通孔为一个透光区Q2，如图5所示。该种结构可以采用沉积一整层遮光材料，再在与每个光学单元20的透光区Q2对应的位置刻蚀形成通孔的方式实现。
在此需要说明的是，每个光学单元20中的遮光区Q1和透光区Q2的占比是可以变化的，即遮光区Q1更宽一些，而相应的透光区Q2更窄一些，也可以是遮光区Q1更窄一些，而相应的透光区Q2更宽一些。其中，光学单元20中遮光区Q1的宽度相对较大，以便可以应对不同的OLED模组厚度和光学单元20中不透光材料的厚度，从而限制来自上方的像素单元30的光的角度，使得只有一定角度的光才能通过光学结构2，从而到达光学感应器件阵列1。
其中，每个光学单元20中的透光区Q2与光学感应器件阵列1中的n个光学感应器件10对应设置，其中，n为大于或等于1的整数。也即，一个光学单元20中的透光区Q2与一个光学感应器件10对应设置，如图6所示，或者一个光学单元20中的透光区Q2与多个光学感应器件10对应设置，如图7所示。当然，也可以是多个光学单元20中的透光区Q2与光学感应器件阵列1中的1个光学感应器件10对应设置，如图8所示。
上述各种实现方式中光学感应器件10的尺寸的大小取决于光学感应器件10的材料和显示基板的尺寸。光学感应器件阵列1可以是由薄膜晶体管和光学感应器件10构成，而光学感应器件10可以是光电器件。
如图9所示，本公开的另一些实施例提供一种显示装置，其包括上述实施例中的显示基板。当然，该显示装置还包括沿背离所述像素阵列3的方向上，依次设置的封装层4、偏光片、光学胶5，以及保护玻璃6。
由于在本实施例的显示装置包括上述实施例中的显示基板，以及上述实施例的显示基板中设置的光学结构2，其中，每个光学单元20包括透光区Q2遮光区Q1，也就是说只有透光区Q2可以将光透过，因此在显示基板发生触摸时，可以限制来自光学单元20上方的像素单元30中的子像素的光照射至触摸物体(包括手指)后，被反射出的光的出射角度，使得只有一定角度的光线才能透过这个光学 单元20到达下方的光学感应器件阵列1上，从而使得对显示基板进行触摸的物体能够在光学感应阵列中得到清晰的图像，不会因为来自不同方向的光线串扰产生模糊。在本公开的一个实施例中，每个光学单元20的宽度为像素单元30的一个子像素的宽度的a倍，a为大于或等于1的整数。在该实施例中，光学结构2中的每个光学单元20的宽度可以为所述像素单元30的一个所述子像素的宽度的im倍，i为每个像素单元中的子像素的数目，并且m为大于或等于1的整数。也就是说，一个光学单元20可以与m个像素单元30对应设置。同时每一个像素单元30的各个子像素从下方的金属信号线一旁所反射出的光的总透过率是相同的，同理，每多个像素单元30的各个子像素从下方的金属信号线一旁所反射出的光的总透过率也是是相同的，因此每m个像素单元30中透过的光是相同的。之后，光经过下方的对应的光学单元20的减小的比例是一样的，再经过光学结构2到达下方的光学感应器件阵列1后获得的光线强度也是均匀的减小之后的，所以光学感应器件30对于显示基板上的物体图像的获取是均匀的。特别的是，如果物体是手指，就可以获取手指的指纹中的谷和脊，从而实现指纹的识别。
其中，显示装置可以为电致发光显示装置，例如电子纸、OLED面板、手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。
可以理解的是，以上实施方式仅仅是为了说明本公开的原理而采用的示例性实施方式，然而本公开并不局限于此。对于本领域内的普通技术人员而言，在不脱离本公开的精神和实质的情况下，可以做出各种变型和改进，这些变型和改进也视为本公开的保护范围。

Claims (11)

  1. 一种显示基板，包括：
    光学感应器件阵列；
    光学结构，位于所述光学感应器件阵列上方，所述光学结构包括多个光学单元，每个所述光学单元均包括遮光区和透光区；
    像素阵列，位于所述光学结构上方，所述像素阵列包括多个像素单元，每个所述像素单元均包括不同颜色的子像素。
  2. 根据权利要求1所述的显示基板，其中，每个所述光学单元的宽度为所述像素单元的一个所述子像素的宽度的a倍，a为大于或等于1的整数。
  3. 根据权利要求2所述的显示基板，其中，每个所述光学单元的宽度为所述像素单元的一个所述子像素的宽度的im倍，i为每个像素单元中的子像素的数目，并且m为大于或等于1的整数。
  4. 根据权利要求1所述的显示基板，其中，每个所述光学单元中的透光区与所述光学感应器件阵列中的n个光学感应器件对应设置，其中，n为大于或等于1的整数。
  5. 根据权利要求1所述的显示基板，其中，多个所述光学单元中的透光区与所述光学感应器件阵列中的1个光学感应器件对应设置。
  6. 根据权利要求1所述的显示基板，其中，每个所述光学单元的遮光区在沿背离所述光学感应器件阵列的方向上，依次设置有第一遮光层、第一透光层、第二遮光层。
  7. 根据权利要求5所述的显示基板，其中，每个所述光学单元中的透光区均 设置有第二透光层，且各个所述第一透光层与所述第二透光层为一体成型结构。
  8. 根据权利要求5或6所述的显示基板，其中，所述第一遮光层和所述第二遮光层的材料为黑矩阵或者金属；
    所述第一透光层的材料为聚酰亚胺或者玻璃。
  9. 根据权利要求1所述的显示基板，其中，每个所述光学单元的遮光区设置有遮光体，任意两相邻的所述遮光体限定出的通孔为一个透光区。
  10. 一种显示装置，其中，包括权利要求1-9中任一项所述的显示基板。
  11. 根据权利要求10所述的显示装置，其中，还包括沿背离所述像素阵列的方向上，依次设置的封装层、偏光片、光学胶以及保护玻璃。
PCT/CN2017/107351 2017-03-28 2017-10-23 显示基板及显示装置 WO2018176819A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US15/774,436 US20200285826A1 (en) 2017-03-28 2017-10-23 Display substrate and display device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710192831.7A CN106886341B (zh) 2017-03-28 2017-03-28 显示基板及显示装置
CN201710192831.7 2017-03-28

Publications (1)

Publication Number Publication Date
WO2018176819A1 true WO2018176819A1 (zh) 2018-10-04

Family

ID=59181679

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/107351 WO2018176819A1 (zh) 2017-03-28 2017-10-23 显示基板及显示装置

Country Status (3)

Country Link
US (1) US20200285826A1 (zh)
CN (1) CN106886341B (zh)
WO (1) WO2018176819A1 (zh)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106886341B (zh) * 2017-03-28 2022-02-25 京东方科技集团股份有限公司 显示基板及显示装置
CN107957747B (zh) * 2017-08-17 2022-02-01 柳州梓博科技有限公司 电子设备
CN113158868A (zh) * 2017-08-17 2021-07-23 深圳信炜科技有限公司 感光模组、显示模组及电子设备
WO2019033348A1 (zh) * 2017-08-17 2019-02-21 深圳信炜科技有限公司 显示模组及电子设备
CN107958650B (zh) * 2017-08-17 2021-01-26 深圳信炜科技有限公司 生物感测模组及其驱动电路、电子设备
CN107946338B (zh) * 2017-08-17 2020-07-28 深圳信炜科技有限公司 显示模组及电子设备
CN107423728B (zh) * 2017-09-07 2024-02-02 京东方科技集团股份有限公司 光学结构及其制作方法、显示基板及显示装置
US11245095B2 (en) * 2017-09-07 2022-02-08 Huawei Technologies Co., Ltd. Organic light emitting display OLED screen and terminal
CN107845666B (zh) * 2017-10-31 2020-06-30 京东方科技集团股份有限公司 显示面板及其制造方法、显示装置
CN108227230B (zh) 2018-02-05 2021-01-22 京东方科技集团股份有限公司 一种准直结构、其制作方法及显示装置
CN110717364B (zh) * 2018-07-13 2023-09-22 中兴通讯股份有限公司 玻璃盖板、终端、指纹识别方法、装置及存储介质
CN111191491B (zh) * 2018-11-15 2023-10-27 世界先进积体电路股份有限公司 光学感应器及其形成方法
CN111506208A (zh) * 2019-01-31 2020-08-07 陕西坤同半导体科技有限公司 感应组件、全屏指纹触控的显示面板
CN111832341A (zh) * 2019-04-16 2020-10-27 华为技术有限公司 一种指纹采集的方法、电子设备
CN110263773B (zh) * 2019-07-31 2021-08-06 厦门天马微电子有限公司 显示模组、显示装置及光栅膜材层的制作方法
CN113075817A (zh) * 2021-03-22 2021-07-06 武汉华星光电技术有限公司 背光模组及液晶显示装置
CN114824124B (zh) * 2022-03-29 2023-08-22 武汉华星光电半导体显示技术有限公司 显示面板及显示装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6128399A (en) * 1996-03-28 2000-10-03 Sagem Sa Fingerprint sensor device
US20050103983A1 (en) * 2003-11-18 2005-05-19 Matsushita Electric Industrial Co., Ltd. Photodetector
CN101241922A (zh) * 2007-02-08 2008-08-13 卡西欧计算机株式会社 光电转换装置和具备该光电转换装置的显示面板
CN102842027A (zh) * 2011-03-23 2012-12-26 精工爱普生株式会社 摄像装置
CN105678255A (zh) * 2016-01-04 2016-06-15 京东方科技集团股份有限公司 一种光学式指纹识别显示屏及显示装置
CN106298859A (zh) * 2016-09-30 2017-01-04 京东方科技集团股份有限公司 触控面板及显示装置
CN106886341A (zh) * 2017-03-28 2017-06-23 京东方科技集团股份有限公司 显示基板及显示装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100964234B1 (ko) * 2008-12-11 2010-06-17 삼성모바일디스플레이주식회사 유기 발광 디스플레이 장치
US9836165B2 (en) * 2014-05-16 2017-12-05 Apple Inc. Integrated silicon-OLED display and touch sensor panel
CN105550664A (zh) * 2016-01-08 2016-05-04 上海箩箕技术有限公司 光学指纹传感器模组
CN106022324B (zh) * 2016-08-04 2019-04-30 京东方科技集团股份有限公司 一种纹路识别显示装置
CN106444998B (zh) * 2016-12-06 2023-10-13 Oppo广东移动通信有限公司 一种面板、传感器组件及移动终端

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6128399A (en) * 1996-03-28 2000-10-03 Sagem Sa Fingerprint sensor device
US20050103983A1 (en) * 2003-11-18 2005-05-19 Matsushita Electric Industrial Co., Ltd. Photodetector
CN101241922A (zh) * 2007-02-08 2008-08-13 卡西欧计算机株式会社 光电转换装置和具备该光电转换装置的显示面板
CN102842027A (zh) * 2011-03-23 2012-12-26 精工爱普生株式会社 摄像装置
CN105678255A (zh) * 2016-01-04 2016-06-15 京东方科技集团股份有限公司 一种光学式指纹识别显示屏及显示装置
CN106298859A (zh) * 2016-09-30 2017-01-04 京东方科技集团股份有限公司 触控面板及显示装置
CN106886341A (zh) * 2017-03-28 2017-06-23 京东方科技集团股份有限公司 显示基板及显示装置

Also Published As

Publication number Publication date
CN106886341B (zh) 2022-02-25
US20200285826A1 (en) 2020-09-10
CN106886341A (zh) 2017-06-23

Similar Documents

Publication Publication Date Title
WO2018176819A1 (zh) 显示基板及显示装置
US11100308B2 (en) Array substrate and preparation method therefor, fingerprint recognition method, and display device
US10867155B2 (en) Fingerprint identification display panel and fabricating method thereof, fingerprint identification display device
EP3584842B1 (en) Display screen, display device and mobile terminal
US11469279B2 (en) Display device
US10936840B2 (en) Optical sensor with angled reflectors
WO2018145461A1 (zh) 显示装置
WO2018000824A1 (zh) 显示面板及其制备方法、显示装置
WO2018059060A1 (zh) 触控面板及显示装置
WO2017206547A1 (zh) 触控显示面板、柔性显示面板以及显示装置
WO2019137002A1 (zh) 显示面板和显示装置
WO2019029206A1 (zh) 纹路识别器件、阵列基板及显示装置
WO2021077331A1 (zh) 显示基板、显示装置及使用显示装置进行检测的方法
US20220086378A1 (en) Electronic device and imaging method thereof
US20190305034A1 (en) Sensing Device and Display Apparatus Including the Same
US11825677B2 (en) Display substrate, method of manufacturing the same, display apparatus, and mask
US20220012452A1 (en) Fingerprint identification method, fingerprint identification device, display panel and readable storage medium
US10777624B2 (en) Display assembly and manufacturing method thereof and display apparatus
WO2020034726A1 (zh) 阵列基板、显示面板、显示装置、指纹识别方法和触控方法
WO2022022068A1 (zh) 显示面板及显示装置
WO2021258941A1 (zh) 纹路识别装置以及电子装置
WO2021217770A1 (zh) 显示面板及显示装置
US11450088B2 (en) Method of detecting biometric feature
US12014568B2 (en) Display panel and display device
CN114975572A (zh) 显示面板及其制作方法和显示装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17903194

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17903194

Country of ref document: EP

Kind code of ref document: A1

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205 DATED 17/03/2020)

122 Ep: pct application non-entry in european phase

Ref document number: 17903194

Country of ref document: EP

Kind code of ref document: A1