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CN111766731A - Display panel and display device - Google Patents

Display panel and display device Download PDF

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Publication number
CN111766731A
CN111766731A CN202010694731.6A CN202010694731A CN111766731A CN 111766731 A CN111766731 A CN 111766731A CN 202010694731 A CN202010694731 A CN 202010694731A CN 111766731 A CN111766731 A CN 111766731A
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CN
China
Prior art keywords
lens
display panel
substrate
sensing
units
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010694731.6A
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Chinese (zh)
Inventor
杨欢丽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan China Star Optoelectronics Technology Co Ltd
Original Assignee
Wuhan China Star Optoelectronics Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuhan China Star Optoelectronics Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Technology Co Ltd
Priority to CN202010694731.6A priority Critical patent/CN111766731A/en
Priority to PCT/CN2020/108079 priority patent/WO2022011761A1/en
Publication of CN111766731A publication Critical patent/CN111766731A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00Simple or compound lenses
    • G02B3/0006Arrays
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509Filters, e.g. light shielding masks
    • G02F1/133512Light shielding layers, e.g. black matrix
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133526Lenses, e.g. microlenses or Fresnel lenses
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06VIMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12Fingerprints or palmprints
    • G06V40/13Sensors therefor
    • G06V40/1318Sensors therefor using electro-optical elements or layers, e.g. electroluminescent sensing

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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)
  • Human Computer Interaction (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Image Input (AREA)

Abstract

The application discloses display panel and display device includes: a first substrate; a second substrate disposed opposite to the first substrate; the micro-lens array layer is arranged on one side, facing the first substrate, of the second substrate and comprises a plurality of lens groups which are arranged in an array manner; and a plurality of sensing pieces, be array distribution in first base plate orientation second base plate one side, a plurality of sensing pieces with a plurality of battery of lens one-to-one set up, compare in prior art, this application has improved fingerprint identification's in the display panel screen precision, suitability and discernment effect.

Description

Display panel and display device
Technical Field
The present application relates to the field of display technologies, and in particular, to a display panel and a display device having the same.
Background
With the rapid development of Liquid Crystal Display (LCD) and the popularization of full-screen, the under-screen and in-screen fingerprint identification technology is a future development trend. Compare and take partial display area on the screen to place components and parts such as camera and make people's face and fingerprint identification, the screen down and in the screen fingerprint identification's benefit be can guarantee the integrality of monoblock screen, the finger directly pastes just can discern and the unblock on the screen, see from the principle of present fingerprint identification technique, comparatively common fingerprint identification mode is four kinds for optics, electric capacity, temperature sensing and ultrasonic wave respectively. For LCD display screens, optical fingerprint identification with stronger penetrating power is a main research and development trend. Optical fingerprint identification means pass through on the glass apron etc. reachs the fingerprint through light, and different lines because of the finger lead to reflection light different, and these reflection light penetrate the module again, reachs fingerprint sensor to realize fingerprint identification's method.
At present, fingerprint identification needs to improve a plurality of rete structures under the screen because the requirement of luminousness, like reflecting plate, prism piece etc to prevent the loss of luminousness, fingerprint identification then does not have this worry in the screen, but fingerprint identification technical scheme is not perfect in current liquid crystal display's the screen, and then makes fingerprint identification performance receive the influence in the screen.
Disclosure of Invention
The embodiment of the application provides a display panel and display device, light that sensing and discernment fingerprint that can be quick and accurate correspond improves accuracy and the suitability of fingerprint identification in the display panel screen.
An embodiment of the present application provides a display panel, including: a first substrate; a second substrate disposed opposite to the first substrate; the micro-lens array layer is arranged on one side, facing the first substrate, of the second substrate and comprises a plurality of lens groups which are arranged in an array manner; and a plurality of sensing elements distributed on one side of the first substrate facing the second substrate in an array, wherein the plurality of sensing elements and the plurality of lens groups are arranged in a one-to-one correspondence manner.
In an embodiment of the present application, the microlens array layer includes a first adhesive layer and a second adhesive layer sequentially stacked along a direction away from the second substrate, the first adhesive layer includes a plurality of convex portions, the second adhesive layer includes a plurality of concave portions corresponding to and matching with the plurality of convex portions one to one, and each of the plurality of convex portions is embedded with its corresponding concave portion to form a lens unit together.
In an embodiment of the present application, 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.
In an embodiment of the present application, each of the plurality of lens groups includes a lens unit, each of the plurality of sensing elements includes a sensing unit, and the sensing unit corresponds to the lens unit in the lens group corresponding thereto.
In an embodiment of the present application, each of the plurality of lens groups includes a plurality of lens units, each of the plurality of sensing elements includes one sensing unit, and the one sensing unit corresponds to one or more of the plurality of lens units in the lens group corresponding thereto.
In an embodiment of the present application, 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, and the plurality of sensing units correspond to the plurality of lens units in the lens group corresponding thereto one to one.
In an embodiment of the present application, a color film layer is disposed on a side of the microlens array layer facing away from the second substrate, the color film layer includes a plurality of pixel units and a black matrix located between the pixel units, and the black matrix includes a plurality of openings corresponding to the lens groups one to one.
In an embodiment of the present application, the plurality of openings and the plurality of pixel units are arranged in a one-to-one correspondence.
In an embodiment of the present application, a projected area of each of the plurality of lens groups on the color film layer is greater than or equal to an area of its corresponding opening, and a projected area of each of the plurality of sensing elements on the color film layer is less than or equal to an area of its corresponding opening.
According to the above object of the present application, a display device is provided, which includes the display panel and a backlight module disposed on one side of the display panel.
The beneficial effect of this application: this application is through setting up matched with battery of lens and sensing piece inside display panel, can receive the light of multi-angle and specific angle better, has improved the quality and the volume of shining the light on the sensing piece to form more complete more accurate fingerprint image, improved fingerprint identification's in the display panel screen accuracy and suitability, improved fingerprint identification's in the screen recognition effect.
Drawings
The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure.
Fig. 2 is a schematic plane distribution diagram of a color film layer according to an embodiment of the present disclosure.
Fig. 3 is a schematic structural diagram of a lens unit according to an embodiment of the present disclosure.
Fig. 4 is a schematic structural diagram of another lens unit provided in an embodiment of the present application.
Fig. 5 is a schematic structural diagram of another lens unit according to an embodiment of the present disclosure.
Fig. 6 is a light path diagram of a lens unit according to an embodiment of the present disclosure.
Fig. 7 is a graph of fingerprint ridge and valley energy provided by an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
An embodiment of the present application provides a display panel, please refer to fig. 1, where the display panel includes: a first substrate 101; a second substrate 102 disposed opposite to the first substrate 101; the micro-lens array layer 103 is arranged on one side of the second substrate 102 facing the first substrate 101, and the micro-lens array layer 103 comprises a plurality of lens groups arranged in an array; and a plurality of sensing elements 104 distributed in an array on a side of the first substrate 101 facing the second substrate 102, wherein the plurality of sensing elements 104 and the plurality of lens groups are arranged in a one-to-one correspondence.
In implementing the application, current display panel, especially, liquid crystal display panel, the aspect of fingerprint identification technique is not mature in the screen, there is not very perfect technical scheme in optics fingerprint identification field, and then it is not enough to lead to display panel when carrying out fingerprint identification in the screen, the accuracy is not high, and through at inside matched with lens group and the sensing piece of setting up of display panel in this application embodiment, can gather the light of various angles, make more light shine on the sensing piece, the quality and the volume of the light of shining on the sensing piece have been improved, and need not to improve other a plurality of membranous layer structures in the display panel, alright have higher light transmissivity, in order to form more complete accurate fingerprint image, fingerprint identification's in the display panel screen accuracy and suitability have been improved, the fingerprint identification effect in the screen has been improved.
Specifically, referring to fig. 1, the display panel includes the first substrate 101 and the second substrate 102 disposed opposite to each other, wherein a microlens array layer 103 is disposed on a side of the second substrate 102 facing the first substrate 101, the microlens array layer 103 includes a first glue layer 1031 and a second glue layer 1032 sequentially stacked in a direction away from the second substrate 102, the first glue layer 1031 includes a plurality of convex portions 1051, the second glue layer 1032 includes a plurality of concave portions 1052 corresponding to and matching with the plurality of convex portions 1051, and each of the plurality of convex portions 1051 is engaged with its corresponding concave portion 1052 to form a lens unit 105.
It should be noted that 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 a polarizer 107, an adhesion layer 108, and a cover plate 109 may be sequentially disposed on a side of the second substrate 102 facing away from the first substrate 101, and these structures may all be implemented with reference to a conventional process, which is not described herein again.
Furthermore, the refractive indexes of the first adhesive layer 1031 and the second adhesive layer 1032 are both between 1.2 and 1.7, in the embodiment of the present application, the materials of the first adhesive layer 1031 and the second adhesive layer 1032 include epoxy resin adhesive materials, photoresist, UV glue, etc., wherein the epoxy resin adhesive materials may also include polymethyl methacrylate, polycarbonate, polyethylene terephthalate, etc., which are not limited herein, and in addition, the embodiment of the present application is designed for the size of the lens unit 105, so as to meet the requirements of light collection and recognition accuracy for more angles with reference to the subsequent embodiments.
One side of the first substrate 101 facing the second substrate 102 is further provided with a plurality of sensing elements 104 corresponding to the lens assemblies one to receive light collected by the lens assemblies and obtain a fingerprint image to identify a fingerprint.
Referring to fig. 1 and 2, a color film layer 106 is disposed on a side of the microlens array layer 103 facing away from the second substrate 102, further, the color film layer 106 includes a plurality of pixel units 1061 and a black matrix 1062 located between the plurality of pixel units 1061, the black matrix 1062 includes a plurality of openings 110 corresponding to the plurality of lens groups, and the plurality of openings 110 are disposed in one-to-one correspondence with the plurality of pixel units 1061, and in other embodiments of the present application, each plurality of pixel units 1061 may correspond to one opening 110, or each pixel unit 1061 corresponds to a plurality of openings 110, which may be selected according to actual situations and is not limited herein.
In the embodiment of the present application, a projection area of each of the plurality of lens assemblies on the color film layer 106 is greater than or equal to an area of the corresponding opening 110, and a projection area of each of the plurality of sensing elements 104 on the color film layer 106 is less than or equal to an area of the corresponding opening 104, so that not only can the light beams of multiple angles and specific angles be collected, but also the interference light can be shielded to the greatest extent.
It should be noted that, in the display panel provided in the embodiment of the present application, 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 the corresponding area, so as to implement a full-screen fingerprint identification technology, which is not limited to a certain area of the display panel alone, and greatly improve the applicability and fingerprint identification performance of fingerprint identification of the display panel.
In an embodiment of the present application, please refer to fig. 1 and fig. 3, each of the plurality of lens assemblies includes a lens unit 105, each of the plurality of sensing elements 104 includes a sensing unit 1041, and the sensing unit 1041 corresponds to the lens unit 105 of the corresponding lens assembly.
Furthermore, the present embodiment is designed for the size of the lens unit 105 to meet the requirement of the display panel for light collection and recognition accuracy, wherein the thickness of the microlens array layer 103 is the sum of L1 and L2, and the sum of L1 and L2 is between 50-100um, the aperture 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 R of the lens unit 105 is between 5-11um, corresponding, the size of the sensing unit 1041 ranges from 5um to 20um, the display panel provided in this embodiment, the angle of the collected light can be adjusted by controlling the parameters of each size, and the fingerprint identification precision and effect of the display panel are greatly improved by matching with the size adjustment of the sensing unit 1041.
In another embodiment of the present application, please refer to fig. 1 and fig. 4, which is different from the above embodiments in that in the present embodiment, each of the lens groups includes a plurality of lens units 105, each of the plurality of sensing elements 104 includes a sensing unit 1041, and the sensing unit 1041 corresponds to one or more of the lens units 105 in the corresponding lens group, that is, light beams of multiple angles and specific angles can be collected onto the sensing unit 1041 through the plurality of lens units 1041, it should be noted that, in the present embodiment, the sensing unit 1041 specifically corresponds to how many lens units 105, which can be selected according to practical requirements without limitation, and the present embodiment only takes as an example that the sensing unit 1041 corresponds to the plurality of lens units 105 in one lens group, for the purpose of illustration.
Furthermore, the present embodiment is designed for the size of the lens unit 105 to meet the requirement of the display panel for light collection and recognition accuracy, wherein the thickness of the microlens array layer 103 is the sum of L1 and L2, and the sum of L1 and L2 is 15-50um, the aperture D of the lens unit 105 is between 3-20um, the height H of the lens unit 105 is between 1-5um, the curvature radius R of the lens unit 105 is between 2-9um, and correspondingly, the size range of the sensing unit 1041 is between 5-15um, the display panel provided in this embodiment, the angle of the collected light can be adjusted by controlling the parameters of each size, and the fingerprint identification precision and effect of the display panel are greatly improved by matching with the size adjustment of the sensing unit 1041.
In another embodiment of the present application, please refer to fig. 1 and fig. 5, which are different from the above embodiments in that in the present embodiment, each of the plurality of lens assemblies includes a plurality of lens units 105, each of the plurality of sensing elements 104 includes a plurality of sensing units 1041, and the plurality of sensing units 1041 correspond to the plurality of lens units 105 in the corresponding lens assembly one by one, as shown in fig. 5, a specific corresponding situation may be two-to-two, three-to-three, or four-to-four, which is not limited herein.
In addition, referring to fig. 6 and fig. 7, the display panel provided in the embodiment of the present application is tested by simulating a fingerprint identification process, wherein the simulated contrast ratio between the lens unit 105 and the fingerprint ridge 112 is 1.3-2.8.
The lens unit 105 collects light with an angle Ω ranging from 3 ° to 15 °, the size of the focusing spot 111 is 5 to 20um, and the size of the sensing unit 1041 is 5 to 20 um.
As shown in fig. 7, wherein the abscissa represents different positions of fingerprint ridges and valleys, and the ordinate represents energy corresponding to the different positions, the imaging property of the lens unit 105 enables the sensing unit 1041 to receive light energy differences (the reflectivity of fingerprint ridges and valleys when a backlight is incident on a fingerprint is different), and finally embodies current differences generated by the ridges and valleys to realize a fingerprint image, wherein a1, a2 and A3 may correspond to parts of fingerprint valleys, B1, B2 and B3 may correspond to parts of fingerprint ridges, and as can be seen from the simulation results, the present embodiment can precisely distinguish positions of the ridges and valleys in the fingerprint by aiming at the structural design and the size design of the lens unit 105 and the sensing unit 1041, collect light rays at specific angles by matching the lens group and the size of the sensing element 104, and better realize finger positions by controlling the sizes of the light spot 111 and the sensing unit 1041 under specific angles of light rays The fingerprint identification precision and the applicability of the display panel are improved by identifying the fingerprint image.
The embodiment of the present application further provides a display device, and the display device includes the display panel described in the above embodiments, the structure and the size of the display panel are the same as those described in the above embodiments, and are not repeated herein, and the display device further includes a backlight module disposed on one side of the display panel.
The application provides a display panel and display device, through at inside matched with battery of lens and the sensing piece that sets up of display panel, can receive the light of multi-angle and specific angle better, improved the quality and the volume of shining the light on the sensing piece to form more complete more accurate fingerprint image, improved fingerprint identification's in the display panel screen accuracy and suitability, improved fingerprint identification's in the screen recognition effect.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The display panel and the display device provided by the embodiments of the present application are described in detail above, and the principle and the implementation of the present application are explained in the present application by applying specific examples, and the description of the embodiments above is only used to help understanding the technical solution and the core idea of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.

Claims (10)

1. A display panel, comprising:
a first substrate;
a second substrate disposed opposite to the first substrate;
the micro-lens array layer is arranged on one side, facing the first substrate, of the second substrate and comprises a plurality of lens groups which are arranged in an array manner; and
the sensing elements are distributed on one side of the first substrate, which faces the second substrate, in an array mode, and the sensing elements and the lens groups are arranged in a one-to-one corresponding mode.
2. The display panel according to claim 1, wherein the microlens array layer comprises a first adhesive layer and a second adhesive layer sequentially stacked in a direction away from the second substrate, the first adhesive layer comprises a plurality of convex portions, the second adhesive layer comprises a plurality of concave portions corresponding to and matching with the plurality of convex portions, and each of the plurality of convex portions is embedded with its corresponding concave portion to form a lens unit together.
3. The display panel according to claim 2, wherein 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.
4. The display panel of claim 2, wherein each of the plurality of lens groups comprises a lens unit, each of the plurality of sensing elements comprises a sensing unit, and the sensing unit corresponds to the lens unit of the lens group corresponding thereto.
5. The display panel of claim 2, wherein each of the plurality of lens groups comprises a plurality of lens units, each of the plurality of sensing elements comprises a sensing unit, and the sensing unit corresponds to one or more of the plurality of lens units in the corresponding lens group.
6. The display panel of claim 2, wherein each of the plurality of lens groups comprises a plurality of lens units, each of the plurality of sensing elements comprises a plurality of sensing units, and the plurality of sensing units are in one-to-one correspondence with the plurality of lens units in the corresponding lens group.
7. The display panel according to claim 1, wherein a color film layer is disposed on a side of the microlens array layer facing away from the second substrate, the color film layer includes a plurality of pixel units and a black matrix located between the pixel units, and the black matrix includes a plurality of openings corresponding to the lens groups one to one.
8. The display panel according to claim 7, wherein the plurality of openings are provided in one-to-one correspondence with the plurality of pixel units.
9. The display panel of claim 7, wherein a projected area of each of the plurality of lens groups on the color film layer is greater than or equal to an area of its corresponding opening, and a projected area of each of the plurality of sensing elements on the color film layer is less than or equal to an area of its corresponding opening.
10. A display device, comprising the display panel according to any one of claims 1 to 9, and a backlight module disposed on one side of the display panel.
CN202010694731.6A 2020-07-17 2020-07-17 Display panel and display device Pending CN111766731A (en)

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CN202010694731.6A CN111766731A (en) 2020-07-17 2020-07-17 Display panel and display device
PCT/CN2020/108079 WO2022011761A1 (en) 2020-07-17 2020-08-10 Display panel and display device

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Application Number Priority Date Filing Date Title
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Cited By (2)

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Publication number Priority date Publication date Assignee Title
CN114255673A (en) * 2021-12-31 2022-03-29 浙江全视通科技有限公司 Process-optimized under-screen camera device
CN114815364A (en) * 2021-01-18 2022-07-29 北京小米移动软件有限公司 Display screen, manufacturing method of display screen and terminal

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