WO2022011761A1 - 显示面板及显示装置 - Google Patents

显示面板及显示装置 Download PDF

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Publication number
WO2022011761A1
WO2022011761A1 PCT/CN2020/108079 CN2020108079W WO2022011761A1 WO 2022011761 A1 WO2022011761 A1 WO 2022011761A1 CN 2020108079 W CN2020108079 W CN 2020108079W WO 2022011761 A1 WO2022011761 A1 WO 2022011761A1
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WO
WIPO (PCT)
Prior art keywords
lens
substrate
display panel
units
sensing
Prior art date
Application number
PCT/CN2020/108079
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English (en)
French (fr)
Inventor
杨欢丽
Original Assignee
武汉华星光电技术有限公司
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Publication of WO2022011761A1 publication Critical patent/WO2022011761A1/zh

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Classifications

    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/0006—Arrays
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133512—Light shielding layers, e.g. black matrix
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133526—Lenses, e.g. microlenses or Fresnel lenses
    • 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

Definitions

  • the present application relates to the field of display technology, and in particular, to a display panel and a display device having the display panel.
  • Optical fingerprint recognition refers to the method that the light passes through the glass cover to reach the fingerprint, and the reflected light is different due to the different lines of the finger. The reflected light penetrates the module and reaches the fingerprint sensor, thereby realizing the method of fingerprint recognition.
  • the fingerprint recognition under the screen needs to improve the structure of multiple layers, such as reflectors, prism sheets, etc., to prevent the loss of light transmittance, while the fingerprint recognition on the screen has no such concerns, but
  • the in-screen fingerprint identification technical solution of the existing liquid crystal display screen is not perfect, which affects the in-screen fingerprint identification performance.
  • Embodiments of the present application provide a display panel and a display device, which can quickly and accurately sense and identify light corresponding to a fingerprint, thereby improving the accuracy and applicability of fingerprint identification in the display panel.
  • An embodiment of the present application provides a display panel, including: a first substrate; a second substrate disposed opposite to the first substrate; a microlens array layer disposed on a side of the second substrate facing the first substrate,
  • the microlens array layer includes a plurality of lens groups arranged in an array; and a plurality of sensing elements, which are distributed in an array on the side of the first substrate facing the second substrate, and the plurality of sensing elements are connected to the second substrate.
  • the plurality of lens groups are arranged in a one-to-one correspondence.
  • the microlens array layer includes a first adhesive layer and a second adhesive layer that are sequentially stacked along a direction away from the second substrate, and the first adhesive layer includes a plurality of convex part, the second adhesive layer includes a plurality of concave parts corresponding to and matching the plurality of convex parts, and each of the plurality of convex parts is fitted with its corresponding concave part to form a lens unit together .
  • the refractive index of the first adhesive layer and the refractive index of the second adhesive layer are both between 1.2 and 1.7.
  • each of the plurality of lens groups includes a lens unit
  • each of the plurality of sensing elements includes a sensing unit
  • the sensor The measuring unit corresponds to the lens unit in the corresponding lens group.
  • each of the plurality of lens groups includes a plurality of lens units
  • each of the plurality of sensing elements includes a sensing unit
  • the One sensing unit corresponds to one or more of the plurality of lens units in its corresponding lens group.
  • each of the plurality of lens groups includes a plurality of lens units
  • each of the plurality of sensing elements includes a plurality of sensing units
  • the The plurality of sensing units are in one-to-one correspondence with the plurality of lens units in the corresponding lens group.
  • a color filter layer is provided on the side of the microlens array layer facing away from the second substrate, and the color filter layer includes a plurality of pixel units and a color filter layer located in the plurality of pixel units A black matrix between them, and the black matrix includes a plurality of openings corresponding to the plurality of lens groups one-to-one.
  • the plurality of openings are arranged in a one-to-one correspondence with the plurality of pixel units.
  • the projected area of each of the plurality of lens groups on the color filter layer is greater than or equal to the area of its corresponding opening, and each of the plurality of sensing elements The projected area of one on the color filter layer is less than or equal to the area of its corresponding opening.
  • a display device includes a display panel, and a backlight module disposed on one side of the display panel, and the display panel includes:
  • microlens array layer disposed on the side of the second substrate facing the first substrate, the microlens array layer comprising a plurality of lens groups arranged in an array;
  • a plurality of sensing elements are distributed in an array on the side of the first substrate facing the second substrate, and the plurality of sensing elements are arranged in a one-to-one correspondence with the plurality of lens groups.
  • the microlens array layer includes a first adhesive layer and a second adhesive layer that are sequentially stacked along a direction away from the second substrate, and the first adhesive layer includes a plurality of convex part, the second adhesive layer includes a plurality of concave parts corresponding to and matching the plurality of convex parts, and each of the plurality of convex parts is fitted with its corresponding concave part to form a lens unit together .
  • the refractive index of the first adhesive layer and the refractive index of the second adhesive layer are both between 1.2 and 1.7.
  • each of the plurality of lens groups includes a lens unit
  • each of the plurality of sensing elements includes a sensing unit
  • the sensor The measuring unit corresponds to the lens unit in the corresponding lens group.
  • each of the plurality of lens groups includes a plurality of lens units
  • each of the plurality of sensing elements includes a sensing unit
  • the One sensing unit corresponds to one or more of the plurality of lens units in its corresponding lens group.
  • each of the plurality of lens groups includes a plurality of lens units
  • each of the plurality of sensing elements includes a plurality of sensing units
  • the The plurality of sensing units are in one-to-one correspondence with the plurality of lens units in the corresponding lens group.
  • a color filter layer is provided on the side of the microlens array layer facing away from the second substrate, and the color filter layer includes a plurality of pixel units and a color filter layer located in the plurality of pixel units A black matrix between them, and the black matrix includes a plurality of openings corresponding to the plurality of lens groups one-to-one.
  • the plurality of openings are arranged in a one-to-one correspondence with the plurality of pixel units.
  • the projected area of each of the plurality of lens groups on the color filter layer is greater than or equal to the area of its corresponding opening, and each of the plurality of sensing elements The projected area of one on the color filter layer is less than or equal to the area of its corresponding opening.
  • the present application can better receive light from multiple angles and specific angles by arranging a matching lens group and a sensing element inside the display panel, thereby improving the quality of the light irradiated on the sensing element. It can form a more complete and accurate fingerprint image, improve the accuracy and applicability of fingerprint recognition in the display panel, and improve the recognition effect of fingerprint recognition in the display.
  • FIG. 1 is a schematic structural diagram of a display panel according to an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a plane distribution of a color filter layer provided by an embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of a lens unit according to an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of another lens unit according to an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of another lens unit according to an embodiment of the present application.
  • FIG. 6 is a light circuit diagram of a lens unit provided by an embodiment of the present application.
  • FIG. 7 is a graph of a fingerprint ridge and valley energy curve provided by an embodiment of the present application.
  • first and second are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined as “first”, “second” may expressly or implicitly include one or more of said features. In the description of the present application, “plurality” means two or more, unless otherwise expressly and specifically defined.
  • the terms “installed”, “connected” and “connected” should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; it can be mechanical connection, electrical connection or can communicate with each other; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction of two elements relation.
  • installed should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; it can be mechanical connection, electrical connection or can communicate with each other; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction of two elements relation.
  • a first feature "on” or “under” a second feature may include direct contact between the first and second features, or may include the first and second features Not directly but through additional features between them.
  • the first feature being “above”, “over” and “above” the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature.
  • the first feature is “below”, “below” and “below” the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.
  • the display panel includes: a first substrate 101 ; a second substrate 102 , which is arranged opposite to the first substrate 101 ; and a microlens array layer 103 , which is arranged On the side of the second substrate 102 facing the first substrate 101 , the microlens array layer 103 includes a plurality of lens groups arranged in an array; and a plurality of sensing elements 104 arranged in an array on the first substrate 101 .
  • a substrate 101 faces the side of the second substrate 102 , and the plurality of sensing elements 104 are disposed in a one-to-one correspondence with the plurality of lens groups.
  • the existing display panels are still immature in terms of in-screen fingerprint recognition technology, and there is no perfect technical solution in the field of optical fingerprint recognition, which leads to the display panel performing in-screen fingerprint recognition. There is insufficient lighting during identification, and the accuracy is not high.
  • a matching lens group and a sensing element inside the display panel, light from various angles can be collected, so that more light can be irradiated to the sensing element.
  • the quality and quantity of light irradiated on the sensing element are improved, and there is no need to improve the structure of other films in the display panel, so that it can have higher light transmittance, so as to form a more complete and more accurate It improves the accuracy and applicability of fingerprint recognition in the display panel, and improves the recognition effect of fingerprint recognition in the display.
  • the display panel includes the first substrate 101 and the second substrate 102 arranged oppositely, wherein the second substrate 102 faces the side of the first substrate 101
  • a microlens array layer 103 is provided, and the microlens array layer 103 includes a first adhesive layer 1031 and a second adhesive layer 1032 that are sequentially stacked along a direction away from the second substrate 102 .
  • the first adhesive layer 1031 Including a plurality of convex portions 1051
  • the second adhesive layer 1032 includes a plurality of concave portions 1052 corresponding to and matching with the plurality of convex portions 1051, wherein each of the plurality of convex portions 1051 corresponds to it
  • the concave portions 1052 of the two are fitted together to form the lens unit 105 together.
  • the first substrate 101 may further include a transistor array layer, and a liquid crystal layer is included between the first substrate 101 and the second substrate 102, and the second substrate 102 faces away from the
  • One side of the first substrate 101 may also be provided with a polarizer 107 , an adhesive layer 108 and a cover plate 109 in sequence, and these structures can be implemented with reference to conventional manufacturing processes, which will not be repeated here.
  • the refractive indices of the first adhesive layer 1031 and the second adhesive layer 1032 are both between 1.2 and 1.7.
  • the first adhesive layer 1031 and the second adhesive layer 1032 The materials of the adhesive layer 1032 include epoxy resin adhesive, photoresist, UV adhesive, etc., wherein the epoxy resin adhesive can also include polymethyl methacrylate, polycarbonate, polyethylene terephthalate, etc. Glycol, etc., are not limited here.
  • the embodiments of the present application are designed for the size of the lens unit 105, please refer to the subsequent embodiments to meet the requirements of more angles of light collection and identification accuracy.
  • the side of the first substrate 101 facing the second substrate 102 is further provided with a plurality of sensing elements 104 corresponding to the plurality of lens groups one-to-one, so as to receive the light collected by the lens groups, and obtain Fingerprint image to identify the fingerprint.
  • a color filter layer 106 is disposed on the side of the microlens array layer 103 facing away from the second substrate 102 , and further, the color filter layer 106 includes a plurality of pixel units 1061 and a black matrix 1062 located between the plurality of pixel units 1061, and the black matrix 1062 includes a plurality of openings 110 corresponding to the plurality of lens groups, and the plurality of openings 110 and the
  • the plurality of pixel units 1061 are arranged in a one-to-one correspondence, and in other embodiments of the present application, each of the plurality of pixel units 1061 may also correspond to one of the openings 110 , or each of the pixel units 1061 may correspond to a plurality of openings 110 . , which can be selected according to the actual situation, which is not limited here.
  • the projected area of each of the plurality of lens groups on the color filter layer 106 is greater than or equal to the area of the corresponding opening 110 , and each of the plurality of sensing elements 104 The projected area of one on the color filter layer 106 is less than or equal to the area of the corresponding opening 104 , which can not only realize the collection of light from multiple angles and specific angles, but also can block the interference light to the greatest extent. .
  • the microlens array layer 103 may be distributed in the entire display area of the display panel, and correspondingly, the plurality of sensing elements 104 are also distributed In order to realize the full-screen fingerprint recognition technology, it is not only limited to a certain area of the display panel, which greatly improves the applicability and fingerprint recognition performance of the fingerprint recognition of the display panel.
  • each of the plurality of lens groups includes a lens unit 105
  • each of the plurality of sensing elements 104 All of them include a sensing unit 1041, and the sensing unit 1041 corresponds to the lens unit 105 in the corresponding lens group.
  • the present embodiment is designed for the size of the lens unit 105 to meet the requirements of the display panel for light collection and recognition accuracy, wherein the thickness of the microlens array layer 103 is between L1 and L2. and, and the sum of L1 and L2 is between 50-100um, the diameter D of the lens unit 105 is between 10-25um, the height H of the lens unit 105 is between 3-10um, the radius of curvature of the lens unit 105 R is between 5-11um, correspondingly, the size range of the sensing unit 1041 is between 5-20um.
  • the display panel provided in this embodiment can adjust the collected light by controlling the parameters of each size
  • the angle of the sensor unit 1041 and the size adjustment of the sensing unit 1041 greatly improve the fingerprint recognition accuracy and effect of the display panel.
  • each of the plurality of lens groups includes multiple lens units 105
  • each of the plurality of sensing elements 104 includes one sensing unit 1041
  • the plurality of lens units 1041 can collect light from multiple angles and specific angles to the sensing unit 1041.
  • the The number of the lens units 105 corresponding to one sensing unit 1041 can be selected according to actual needs, which is not limited here. In this embodiment, only one sensing unit 1041 corresponds to one lens unit in the lens group.
  • the plurality of lens units 105 are taken as an example for illustration.
  • the present embodiment is designed for the size of the lens unit 105 to meet the requirements of the display panel for light collection and recognition accuracy, wherein the thickness of the microlens array layer 103 is between L1 and L2. and, and the sum of L1 and L2 is between 15-50um, the diameter D of the lens unit 105 is between 3-20um, the height H of the lens unit 105 is between 1-5um, the radius of curvature of the lens unit 105 R is between 2-9um, correspondingly, the size range of the sensing unit 1041 is between 5-15um.
  • the display panel provided in this embodiment can adjust the collected light by controlling the parameters of each size
  • the angle of the sensor unit 1041 and the size adjustment of the sensing unit 1041 greatly improve the fingerprint recognition accuracy and effect of the display panel.
  • each of the plurality of lens groups includes a plurality of lens units 105
  • each of the plurality of sensing elements 104 includes a plurality of sensing units 1041
  • the units 105 are in one-to-one correspondence, as shown in FIG. 5 , and the specific correspondence may be two to two, three to three, or four to four, which is not limited herein.
  • the embodiment of the present application simulates a fingerprint identification process to test the display panel provided by the embodiment of the present application, wherein the simulated contrast ratio between the lens unit 105 and the fingerprint ridge and valley 112 is 1.3-2.8.
  • the angle ⁇ of the light collected by the lens unit 105 ranges from 3° to 15°, the size of the focusing spot 111 is 5-20um, and the size of the sensing unit 1041 is 5-20um.
  • the abscissa represents different positions of the fingerprint ridge and valley, and the ordinate represents the energy corresponding to the different positions.
  • the imaging properties of the lens unit 105 make the light energy received by the sensing unit 1041 different. (The reflectivity of fingerprint ridges and valleys is different when the backlight enters the fingerprint), and finally the current difference generated by the ridges and valleys is used to realize the fingerprint image.
  • A1, A2 and A3 can correspond to the part of the fingerprint valley
  • B1, B2 and B3 It can correspond to the part of the fingerprint ridge
  • the structural design and size design of the lens unit 105 and the sensing unit 1041 in this embodiment of the present application can accurately distinguish the ridge and valley in the fingerprint. position, by matching the size of the lens group and the sensing element 104, light of a specific angle can be collected, and by controlling the size of the light spot 111 and the sensing unit 1041 under the light of a specific angle to better
  • the identification of the fingerprint image is realized, and the fingerprint identification accuracy and applicability of the display panel are improved.
  • An embodiment of the present application further provides a display device, and the display device includes the display panel described in the above-mentioned embodiments, and its structure and size are the same as those described in the above-mentioned embodiments, and are not repeated here, and the above-mentioned
  • the display device further includes a backlight module disposed on one side of the display panel.
  • the display panel and the display device provided by the present application can better receive light from multiple angles and specific angles by arranging the matching lens group and the sensing element inside the display panel, thereby improving the efficiency of the light irradiating on the sensing element.
  • the accuracy and applicability of the fingerprint recognition in the display panel are improved, and the recognition effect of the fingerprint recognition in the display is improved.
  • a display panel and a display device provided by the embodiments of the present application have been introduced in detail above, and the principles and implementations of the present application are described with specific examples. The descriptions of the above embodiments are only used to help understand the present application. Those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements to some of the technical features; and these modifications or replacements, and The essence of the corresponding technical solutions is not deviated from the scope of the technical solutions of the embodiments of the present application.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Mathematical Physics (AREA)
  • Engineering & Computer Science (AREA)
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  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
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Abstract

一种显示面板及显示装置，包括：第一基板(101)；第二基板(102)，与第一基板(101)相对设置；微透镜阵列层(103)，设置于第二基板(102)朝向第一基板(101)一侧，微透镜阵列层(103)包括呈阵列排布的多个透镜组；以及多个感测件(104)，呈阵列分布于第一基板(101)朝向第二基板(102)一侧，多个感测件(104)与多个透镜组一一对应设置。

Description

显示面板及显示装置 技术领域
本申请涉及显示技术领域，尤其涉及一种显示面板及具有该显示面板的显示装置。
 背景技术
随着液晶显示屏(LCD)的快速发展以及全面屏的普及，屏下以及屏内指纹识别技术是未来的发展趋势。相比起占用屏幕上的部分显示区域来放置摄像头等元器件来做人脸和指纹识别，屏下以及屏内指纹识别的好处是能够保证整块屏幕的完整性，手指直接贴在屏幕上就能识别并解锁，从目前指纹识别技术的原理来看，较为常见的指纹识别方式分别为光学、电容、热敏和超声波四种。针对LCD显示屏来说，通过穿透力更强的光学指纹识别是主要研究发展趋势。光学指纹识别是指通过光线穿过玻璃盖板等到达指纹上，因手指的不同纹路导致反射光线不同，这些反射光线再穿透模组，到达指纹传感器，从而实现指纹识别的方法。
目前，屏下指纹识别由于透光率的要求，需要对多个膜层结构进行改进，如反射板、棱镜片等，以防止透光率的损失，而屏内指纹识别则无此顾虑，但是现有液晶显示屏的屏内指纹识别技术方案并不完善，进而使得屏内指纹识别性能受到影响。
 技术问题
本申请实施例提供一种显示面板及显示装置，能够快速且准确的感测并识别指纹对应的光线，提高显示面板屏内指纹识别的精确度和适用度。
 技术解决方案
本申请实施例提供一种显示面板，包括：第一基板；第二基板，与所述第一基板相对设置；微透镜阵列层，设置于所述第二基板朝向所述第一基板一侧，所述微透镜阵列层包括呈阵列排布的多个透镜组；以及多个感测件，呈阵列分布于所述第一基板朝向所述第二基板一侧，所述多个感测件与所述多个透镜组一一对应设置。
在本申请的一种实施例中，所述微透镜阵列层包括沿远离所述第二基板方向上依次层叠设置的第一胶层以及第二胶层，所述第一胶层包括多个凸部，所述第二胶层包括与所述多个凸部一一对应且匹配的多个凹部，且所述多个凸部中的每一者与其对应的凹部相嵌合以共同形成透镜单元。
在本申请的一种实施例中，所述第一胶层的折射率以及所述第二胶层的折射率均介于1.2至1.7之间。
在本申请的一种实施例中，所述多个透镜组中的每一者皆包括一个透镜单元，所述多个感测件中的每一者皆包括一个感测单元，且所述感测单元与其对应的所述透镜组中的所述透镜单元相对应。
在本申请的一种实施例中，所述多个透镜组中的每一者皆包括多个透镜单元，所述多个感测件中的每一者皆包括一个感测单元，且所述一个感测单元与其对应的所述透镜组中的所述多个透镜单元中的一个或多个相对应。
在本申请的一种实施例中，所述多个透镜组中的每一者皆包括多个透镜单元，所述多个感测件中的每一者皆包括多个感测单元，且所述多个感测单元与其对应的所述透镜组中的所述多个透镜单元一一对应。
在本申请的一种实施例中，所述微透镜阵列层背向所述第二基板的一侧设置有彩膜层，所述彩膜层包括多个像素单元以及位于所述多个像素单元之间的黑色矩阵，且所述黑色矩阵包括与所述多个透镜组一一对应的多个开口。
在本申请的一种实施例中，所述多个开口与所述多个像素单元一一对应设置。
在本申请的一种实施例中，所述多个透镜组中的每一者在所述彩膜层上的投影面积大于或等于其对应开口的面积，所述多个感测件中的每一者在所述彩膜层上的投影面积小于或等于其对应开口的面积。
根据本申请的上述目的，提供一种显示装置，所述显示装置包括显示面板，以及设置于所述显示面板一侧的背光模组，且所述显示面板包括：
第一基板；
第二基板，与所述第一基板相对设置；
微透镜阵列层，设置于所述第二基板朝向所述第一基板一侧，所述微透镜阵列层包括呈阵列排布的多个透镜组；以及
多个感测件，呈阵列分布于所述第一基板朝向所述第二基板一侧，所述多个感测件与所述多个透镜组一一对应设置。
在本申请的一种实施例中，所述微透镜阵列层包括沿远离所述第二基板方向上依次层叠设置的第一胶层以及第二胶层，所述第一胶层包括多个凸部，所述第二胶层包括与所述多个凸部一一对应且匹配的多个凹部，且所述多个凸部中的每一者与其对应的凹部相嵌合以共同形成透镜单元。
在本申请的一种实施例中，所述第一胶层的折射率以及所述第二胶层的折射率均介于1.2至1.7之间。
在本申请的一种实施例中，所述多个透镜组中的每一者皆包括一个透镜单元，所述多个感测件中的每一者皆包括一个感测单元，且所述感测单元与其对应的所述透镜组中的所述透镜单元相对应。
在本申请的一种实施例中，所述多个透镜组中的每一者皆包括多个透镜单元，所述多个感测件中的每一者皆包括一个感测单元，且所述一个感测单元与其对应的所述透镜组中的所述多个透镜单元中的一个或多个相对应。
在本申请的一种实施例中，所述多个透镜组中的每一者皆包括多个透镜单元，所述多个感测件中的每一者皆包括多个感测单元，且所述多个感测单元与其对应的所述透镜组中的所述多个透镜单元一一对应。
在本申请的一种实施例中，所述微透镜阵列层背向所述第二基板的一侧设置有彩膜层，所述彩膜层包括多个像素单元以及位于所述多个像素单元之间的黑色矩阵，且所述黑色矩阵包括与所述多个透镜组一一对应的多个开口。
在本申请的一种实施例中，所述多个开口与所述多个像素单元一一对应设置。
在本申请的一种实施例中，所述多个透镜组中的每一者在所述彩膜层上的投影面积大于或等于其对应开口的面积，所述多个感测件中的每一者在所述彩膜层上的投影面积小于或等于其对应开口的面积。
 有益效果
相较于现有技术，本申请通过在显示面板内部设置相配合的透镜组以及感测件，可以更好地接收多角度以及特定角度的光线，提高了照射到感测件上的光线的质和量，以形成更全更精准的指纹图像，提高了显示面板屏内指纹识别的精确度和适用度，提高了屏内指纹识别的识别效果。
 附图说明
下面结合附图，通过对本申请的具体实施方式详细描述，将使本申请的技术方案及其它有益效果显而易见。
图1为本申请实施例提供的显示面板结构示意图。
图2为本申请实施例提供的彩膜层平面分布示意图。
图3为本申请实施例提供的一种透镜单元结构示意图。
图4为本申请实施例提供的另一种透镜单元结构示意图。
图5为本申请实施例提供的又一种透镜单元结构示意图。
图6为本申请实施例提供的透镜单元光线线路图。
图7为本申请实施例提供的指纹脊谷能量曲线图。
 本发明的实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述。显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特征。在本申请的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接或可以相互通讯；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方，或仅仅表示第一特征水平高度小于第二特征。
下文的公开提供了许多不同的实施方式或例子用来实现本申请的不同结构。为了简化本申请的公开，下文中对特定例子的部件和设置进行描述。当然，它们仅仅为示例，并且目的不在于限制本申请。此外，本申请可以在不同例子中重复参考数字和/或参考字母，这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施方式和/或设置之间的关系。此外，本申请提供了的各种特定的工艺和材料的例子，但是本领域普通技术人员可以意识到其他工艺的应用和/或其他材料的使用。
本申请实施例提供一种显示面板，请参照图1所示，所述显示面板包括：第一基板101；第二基板102，与所述第一基板101相对设置；微透镜阵列层103，设置于所述第二基板102朝向所述第一基板101一侧，所述微透镜阵列层103包括呈阵列排布的多个透镜组；以及多个感测件104，呈阵列分布于所述第一基板101朝向所述第二基板102一侧，所述多个感测件104与所述多个透镜组一一对应设置。
在实施应用过程中，现有的显示面板，尤其是液晶显示面板，在屏内指纹识别技术方面尚不成熟，在光学指纹识别领域没有很完善的技术方案，进而导致显示面板在进行屏内指纹识别时采光不足，精确度不高，而本申请实施例中通过在显示面板内部设置相配合的透镜组和感测件，可以采集各种角度的光线，使更多的光线照射到感测件上，提高了照射至感测件上的光线的质和量，且无需对显示面板内的其他多个膜层结构进行改进，便可具有较高的光透过性，以形成更全更精准的指纹图像，提高了显示面板屏内指纹识别的精确度和适用度，提高了屏内指纹识别的识别效果。
具体地，请参照图1所示，所述显示面板包括相对设置的所述第一基板101以及所述第二基板102，其中，所述第二基板102朝向所述第一基板101的一侧设置有微透镜阵列层103，且所述微透镜阵列层103包括沿远离所述第二基板102方向上依次层叠设置的第一胶层1031以及第二胶层1032，所述第一胶层1031包括多个凸部1051，所述第二胶层1032包括与所述多个凸部1051一一对应且匹配的多个凹部1052，其中，所述多个凸部1051中的每一者与其对应的凹部1052相嵌合以共同形成透镜单元105。
需要说明的是，所述第一基板101还可以包括电晶体阵列层，以及所述第一基板101与所述第二基板102之间包括有液晶层，所述第二基板102背向所述第一基板101的一侧还可以依次设置有偏光片107、粘附层108以及盖板109，且这些结构均可以参照常规制程进行实现，在此不再赘述。
更进一步地，所述第一胶层1031以及所述第二胶层1032的折射率均介于1.2至1.7之间，在本申请实施例中，所述第一胶层1031以及所述第二胶层1032的材料均包括环氧树脂类胶材、光刻胶、UV胶等，其中，环氧树脂类胶材亦可包括聚甲基丙烯酸甲酯、聚碳酸酯、聚对苯二甲酸乙二醇脂等，在此不作限定，另外，本申请实施例针对所述透镜单元105的尺寸进行了设计，请参照后续实施例，以满足更多角度的光线采集以及识别精确度的要求。
所述第一基板101朝向所述第二基板102的一侧还设置有与所述多个透镜组一一对应的多个感测件104，以接收所述透镜组采集的光线，并得出指纹图像以对指纹进行识别。
请参照图1、图2所示，所述微透镜阵列层103背向所述第二基板102的一侧设置有彩膜层106，更进一步地，所述彩膜层106包括多个像素单元1061以及位于所述多个像素单元1061之间的黑色矩阵1062，且所述黑色矩阵1062包括与所述多个透镜组一一对应的多个开口110，且所述多个开口110与所述多个像素单元1061一一对应设置，且在本申请的其他实施例中，也可以每多个所述像素单元1061对应一个所述开口110，或每个所述像素单元1061对应多个开口110，可根据实际情况进行选择，在此不作限定。
在本申请实施例中，所述多个透镜组中的每一者在所述彩膜层106上的投影面积大于或等于其对应开口110的面积，所述多个感测件104中的每一者在所述彩膜层106上的投影面积小于或等于其对应开口104的面积，既可以实现对多角度和特定角度的光线的采集，亦可以最大程度的起到对干扰光的遮挡作用。
需要说明的是，本申请实施例提供的所述显示面板中，所述微透镜阵列层103可以分布于所述显示面板的整个显示区内，对应的，所述多个感测件104亦分布于相应的区域，以实现全屏指纹识别技术，而不单单局限于所述显示面板的某个区域，极大程度地提高了所述显示面板的指纹识别的适用性和指纹识别性能。
在本申请的一种实施例中，请参照图1以及图3所示，所述多个透镜组中的每一者皆包括一个透镜单元105，所述多个感测件104中的每一者皆包括一个感测单元1041，且所述感测单元1041与其对应的所述透镜组中的所述透镜单元105相对应。
更进一步地，本实施例针对所述透镜单元105的尺寸进行设计，以满足所述显示面板对光线采集以及识别精准度的要求，其中，所述微透镜阵列层103的厚度为L1与L2之和，且L1与L2之和介于50-100um，所述透镜单元105的口径D介于10-25um，所述透镜单元105的高度H介于3-10um，所述透镜单元105的曲率半径R介于5-11um，相对应的，所述感测单元1041的尺寸范围介于5-20um，本实施例提供的所述显示面板，可以通过控制各尺寸的参数，来调整采集到的光线的角度，并配合所述感测单元1041的尺寸调整，极大程度地提高了所述显示面板的指纹识别精度和效果。
在本申请的另一种实施例中，请参照图1以及图4所示，与上述实施例的区别之处在于，本实施例中，所述多个透镜组中的每一者皆包括多个透镜单元105，所述多个感测件104中的每一者皆包括一个感测单元1041，且所述一个感测单元1041与其对应的所述透镜组中的所述多个透镜单元105中的一个或多个相对应，即可通过所述多个透镜单元1041将多角度以及特定角度的光线采集至所述感测单元1041上，需要说明的是，在本实施例中，所述一个感测单元1041具体与多少个所述透镜单元105相对应，可根据实际需求进行选择，在此不作限定，且本实施例仅以所述一个感测单元1041对应一个所述透镜组中的所述多个透镜单元105为例，以作说明。
更进一步地，本实施例针对所述透镜单元105的尺寸进行设计，以满足所述显示面板对光线采集以及识别精准度的要求，其中，所述微透镜阵列层103的厚度为L1与L2之和，且L1与L2之和介于15-50um，所述透镜单元105的口径D介于3-20um，所述透镜单元105的高度H介于1-5um，所述透镜单元105的曲率半径R介于2-9um，相对应的，所述感测单元1041的尺寸范围介于5-15um，本实施例提供的所述显示面板，可以通过控制各尺寸的参数，来调整采集到的光线的角度，并配合所述感测单元1041的尺寸调整，极大程度地提高了所述显示面板的指纹识别精度和效果。
在本申请的另一种实施例中，请参照图1以及图5所示，与上述实施例的区别之处在于，本实施例中，所述多个透镜组中的每一者皆包括多个透镜单元105，所述多个感测件104中的每一者皆包括多个感测单元1041，且所述多个感测单元1041与其对应的所述透镜组中的所述多个透镜单元105一一对应，如图5中所示，具体的对应情况可以为二对二、三对三或四对四，在此不作限定。
另外，请参照图6以及图7所示，本申请实施例模拟指纹识别过程，以对本申请实施例提供的显示面板进行测试，其中，所述透镜单元105与所述指纹脊谷112模拟对比度为1.3-2.8。
其中，经分析计算得，所述透镜单元105收集光线角度Ω范围为3°-15°，聚焦光斑111大小为5-20um，且所述感测单元1041大小为5-20um。
如图7所示，其中横坐标表示指纹脊谷的不同位置，纵坐标表示该不同位置对应的能量，所述透镜单元105的成像属性，使得所述感测单元1041接收到的光线能量存在差异（指纹脊、谷对背光射入指纹时的反射率不同），最后体现为脊谷产生的电流差异来实现指纹图像，其中，A1、A2以及A3可以对应指纹谷的部分，B1、B2以及B3可以对应指纹脊的部分，且从上述模拟结果可以看出，本申请实施例针对所述透镜单元105以及所述感测单元1041的结构设计以及尺寸设计可以很精确的分辨出指纹中脊谷的位置，通过匹配所述透镜组以及所述感测件104的尺寸可以采集到特定角度的光线，并通过控制特定角度光线下的所述光斑111及所述感测单元1041的大小来更好地实现指纹图像的识别，提高了所述显示面板的指纹识别精度以及适用度。
本申请实施例还提供一种显示装置，且所述显示装置包括上述实施例中所述的显示面板，其结构以及尺寸均与上述实施例中所述相同，在此不再赘述，且所述显示装置还包括设置于所述显示面板一侧的背光模组。
本申请提供的显示面板及显示装置，通过在显示面板内部设置相配合的透镜组以及感测件，可以更好地接收多角度以及特定角度的光线，提高了照射至感测件上的光线的质和量，以形成更全更精准的指纹图像，提高了显示面板屏内指纹识别的精确度和适用度，提高了屏内指纹识别的识别效果。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。
以上对本申请实施例所提供的一种显示面板及显示装置进行了详细介绍，本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的技术方案及其核心思想；本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例的技术方案的范围。

Claims (18)

  1. 一种显示面板，其包括：
    第一基板；
    第二基板，与所述第一基板相对设置；
    微透镜阵列层，设置于所述第二基板朝向所述第一基板一侧，所述微透镜阵列层包括呈阵列排布的多个透镜组；以及
    多个感测件，呈阵列分布于所述第一基板朝向所述第二基板一侧，所述多个感测件与所述多个透镜组一一对应设置。
  2. 根据权利要求1所述的显示面板，其中，所述微透镜阵列层包括沿远离所述第二基板方向上依次层叠设置的第一胶层以及第二胶层，所述第一胶层包括多个凸部，所述第二胶层包括与所述多个凸部一一对应且匹配的多个凹部，且所述多个凸部中的每一者与其对应的凹部相嵌合以共同形成透镜单元。
  3. 根据权利要求2所述的显示面板，其中，所述第一胶层的折射率以及所述第二胶层的折射率均介于1.2至1.7之间。
  4. 根据权利要求2所述的显示面板，其中，所述多个透镜组中的每一者皆包括一个透镜单元，所述多个感测件中的每一者皆包括一个感测单元，且所述感测单元与其对应的所述透镜组中的所述透镜单元相对应。
  5. 根据权利要求2所述的显示面板，其中，所述多个透镜组中的每一者皆包括多个透镜单元，所述多个感测件中的每一者皆包括一个感测单元，且所述一个感测单元与其对应的所述透镜组中的所述多个透镜单元中的一个或多个相对应。
  6. 根据权利要求2所述的显示面板，其中，所述多个透镜组中的每一者皆包括多个透镜单元，所述多个感测件中的每一者皆包括多个感测单元，且所述多个感测单元与其对应的所述透镜组中的所述多个透镜单元一一对应。
  7. 根据权利要求1所述的显示面板，其中，所述微透镜阵列层背向所述第二基板的一侧设置有彩膜层，所述彩膜层包括多个像素单元以及位于所述多个像素单元之间的黑色矩阵，且所述黑色矩阵包括与所述多个透镜组一一对应的多个开口。
  8. 根据权利要求7所述的显示面板，其中，所述多个开口与所述多个像素单元一一对应设置。
  9. 根据权利要求7所述的显示面板，其中，所述多个透镜组中的每一者在所述彩膜层上的投影面积大于或等于其对应开口的面积，所述多个感测件中的每一者在所述彩膜层上的投影面积小于或等于其对应开口的面积。
  10. 一种显示装置，所述显示装置包括显示面板，以及设置于所述显示面板一侧的背光模组，且所述显示面板包括：
    第一基板；
    第二基板，与所述第一基板相对设置；
    微透镜阵列层，设置于所述第二基板朝向所述第一基板一侧，所述微透镜阵列层包括呈阵列排布的多个透镜组；以及
    多个感测件，呈阵列分布于所述第一基板朝向所述第二基板一侧，所述多个感测件与所述多个透镜组一一对应设置。
  11. 根据权利要求10所述的显示装置，其中，所述微透镜阵列层包括沿远离所述第二基板方向上依次层叠设置的第一胶层以及第二胶层，所述第一胶层包括多个凸部，所述第二胶层包括与所述多个凸部一一对应且匹配的多个凹部，且所述多个凸部中的每一者与其对应的凹部相嵌合以共同形成透镜单元。
  12. 根据权利要求11所述的显示装置，其中，所述第一胶层的折射率以及所述第二胶层的折射率均介于1.2至1.7之间。
  13. 根据权利要求11所述的显示装置，其中，所述多个透镜组中的每一者皆包括一个透镜单元，所述多个感测件中的每一者皆包括一个感测单元，且所述感测单元与其对应的所述透镜组中的所述透镜单元相对应。
  14. 根据权利要求11所述的显示装置，其中，所述多个透镜组中的每一者皆包括多个透镜单元，所述多个感测件中的每一者皆包括一个感测单元，且所述一个感测单元与其对应的所述透镜组中的所述多个透镜单元中的一个或多个相对应。
  15. 根据权利要求11所述的显示装置，其中，所述多个透镜组中的每一者皆包括多个透镜单元，所述多个感测件中的每一者皆包括多个感测单元，且所述多个感测单元与其对应的所述透镜组中的所述多个透镜单元一一对应。
  16. 根据权利要求10所述的显示装置，其中，所述微透镜阵列层背向所述第二基板的一侧设置有彩膜层，所述彩膜层包括多个像素单元以及位于所述多个像素单元之间的黑色矩阵，且所述黑色矩阵包括与所述多个透镜组一一对应的多个开口。
  17. 根据权利要求16所述的显示装置，其中，所述多个开口与所述多个像素单元一一对应设置。
  18. 根据权利要求16所述的显示装置，其中，所述多个透镜组中的每一者在所述彩膜层上的投影面积大于或等于其对应开口的面积，所述多个感测件中的每一者在所述彩膜层上的投影面积小于或等于其对应开口的面积。
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