WO2021168967A1 - 显示面板 - Google Patents

显示面板 Download PDF

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Publication number
WO2021168967A1
WO2021168967A1 PCT/CN2020/081629 CN2020081629W WO2021168967A1 WO 2021168967 A1 WO2021168967 A1 WO 2021168967A1 CN 2020081629 W CN2020081629 W CN 2020081629W WO 2021168967 A1 WO2021168967 A1 WO 2021168967A1
Authority
WO
WIPO (PCT)
Prior art keywords
display panel
substrate
fingerprint recognition
layer
pixel
Prior art date
Application number
PCT/CN2020/081629
Other languages
English (en)
French (fr)
Inventor
张洲
马长文
徐盼
Original Assignee
武汉华星光电技术有限公司
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 武汉华星光电技术有限公司 filed Critical 武汉华星光电技术有限公司
Priority to US16/956,966 priority Critical patent/US11830277B2/en
Publication of WO2021168967A1 publication Critical patent/WO2021168967A1/zh

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Classifications

    • 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
    • G06V40/1324—Sensors therefor by using geometrical optics, e.g. using prisms
    • 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
    • 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
    • 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
    • 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
    • G02F1/133514—Colour filters
    • 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
    • G02F1/133528—Polarisers
    • G02F1/133531—Polarisers characterised by the arrangement of polariser or analyser axes
    • 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
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • G02F1/134345—Subdivided pixels, e.g. for grey scale or redundancy
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/10—Image acquisition
    • G06V10/12—Details of acquisition arrangements; Constructional details thereof
    • G06V10/14—Optical characteristics of the device performing the acquisition or on the illumination arrangements
    • G06V10/145—Illumination specially adapted for pattern recognition, e.g. using gratings

Definitions

  • This application relates to the field of display technology, and in particular to a display panel.
  • the fingerprint recognition sensor is usually placed in the position of the menu button (home button), but with the advent of the full-screen era, the border around the display becomes narrower and narrower, and the menu button gradually It was cancelled, so there is an intermediate transition scheme of placing fingerprint recognition sensors on the back or side of the mobile phone, and placing the fingerprint recognition sensor under or in the screen will be a major trend in the development of fingerprint recognition technology.
  • the under-screen fingerprint identification method based on liquid crystal display technology is to install the fingerprint identification sensor on the thin film transistor array substrate, and the light emitted by the backlight module is reflected by the user's fingerprint and captured by the fingerprint identification sensor to generate user fingerprint information.
  • the existing liquid crystal display panel structure determines that the fingerprint reflected light needs to pass through the multi-layer panel structure before reaching the fingerprint recognition sensor, such as the color film substrate layer and the liquid crystal layer. These panel structures will weaken the intensity of the fingerprint reflected light to varying degrees, resulting in The fingerprint information detected by the fingerprint recognition sensor is incomplete or the function is invalid, which seriously affects the user experience.
  • the fingerprint recognition function of the liquid crystal display panel is affected by the multi-layer structure of the liquid crystal display panel that weakens the reflected light of the fingerprint, which causes the problem of weakening or failure of the fingerprint recognition function.
  • This application provides a display panel, including:
  • the backlight module is used as the light-emitting unit of the display panel
  • the first substrate is arranged on the backlight module, and a color filter layer is arranged on the first substrate;
  • the second substrate is arranged opposite to the first substrate and away from the backlight module.
  • the second substrate is provided with at least a thin film transistor array layer and a fingerprint identification layer, and the fingerprint identification layer is used to identify user fingerprint information;
  • a liquid crystal layer disposed between the first substrate and the second substrate, the liquid crystal layer including liquid crystal
  • the glass cover plate is arranged on the second substrate and is away from the liquid crystal layer.
  • the fingerprint recognition layer includes a plurality of fingerprint recognition sensors.
  • an upper polarizer is provided between the second substrate and the glass cover plate, and a lower polarizer is provided between the first substrate and the backlight module;
  • the upper polarizer is provided with a light-transmitting unit corresponding to the fingerprint identification sensor perpendicularly.
  • the light-transmitting unit is a collimator or a light-transmitting hole distributed on the upper polarizer.
  • the fingerprint recognition layer is disposed close to the liquid crystal layer.
  • the fingerprint recognition layer is disposed away from the liquid crystal layer.
  • a touch function layer for realizing the touch function of the display panel is further provided on the second substrate.
  • a plurality of color filter units are provided on the color filter layer;
  • the second substrate is provided with pixel electrodes corresponding to the color filter units one-to-one, and the pixel electrodes are used to drive the liquid crystal to deflect;
  • Each of the pixel electrodes corresponds to one pixel unit of the display panel
  • the fingerprint recognition sensor and the pixel unit are staggered.
  • a plane parallel to the second substrate is defined as the projection plane, and the projection of the fingerprint recognition sensor on the projection plane is the same as the projection of the pixel electrode on the projection plane.
  • the projections do not overlap.
  • the color filter unit includes a red filter unit, a green filter unit, and a blue filter unit.
  • the pixel electrode on the second substrate includes a red pixel electrode, a green pixel electrode, and a blue pixel electrode, and the red pixel electrode, the green pixel electrode, and the blue pixel electrode are respectively Corresponding to the red filter unit, the green filter unit and the blue filter unit.
  • the pixel units are arranged in multiple rows side by side on the display panel, and the fingerprint recognition sensor is arranged between two adjacent rows of the pixel units.
  • multiple rows of the pixel units are arranged side by side on the display panel, and the fingerprint recognition sensor is arranged between two adjacent pixel units in a single row of the pixel units.
  • every three adjacent pixel units form a group, and each of the groups is provided with one fingerprint recognition sensor.
  • the pixel units are arranged side by side in multiple rows on the display panel;
  • Some of the pixel units have a small area and are defined as the first pixel unit, and the remaining pixel units are defined as the second pixel unit;
  • the fingerprint recognition sensor and the first pixel unit are arranged side by side along the column direction.
  • the fingerprint recognition layer covers a partial area of the display panel.
  • the fingerprint recognition layer covers the entire display area of the display panel.
  • the application further provides a display panel, which includes
  • the backlight module is used as the light-emitting unit of the display panel
  • the first substrate is arranged on the backlight module, and a color filter layer is arranged on the first substrate;
  • the second substrate is arranged opposite to the first substrate and away from the backlight module.
  • the second substrate is provided with at least a thin film transistor array layer and a fingerprint identification layer, and the fingerprint identification layer is used to identify user fingerprint information;
  • a liquid crystal layer disposed between the first substrate and the second substrate, the liquid crystal layer including liquid crystal
  • a glass cover plate arranged on the second substrate, away from the liquid crystal layer
  • the fingerprint recognition layer includes a plurality of fingerprint recognition sensors, an upper polarizer is arranged between the second substrate and the glass cover, and a collimator corresponding to the fingerprint recognition sensor is arranged on the upper polarizer. Or light hole.
  • the second substrate configured with the fingerprint identification layer is arranged close to the glass cover of the display panel, so that the fingerprint identification layer is closer to the user fingerprint, and the path for the reflected light of the fingerprint to reach the fingerprint identification sensor is shortened. Eliminate the influence of the liquid crystal layer on the reflected light of the fingerprint; and configure the light-transmitting unit corresponding to the fingerprint recognition sensor on the upper polarizer to reduce the attenuation of the reflected light of the fingerprint and improve the fingerprint recognition effect.
  • FIG. 1 is a schematic diagram of a planar structure of a display panel provided by an embodiment of the present application
  • FIG. 2 is a schematic diagram of a layered structure of a display panel provided by an embodiment of the present application.
  • FIG. 3 is a schematic diagram of the fingerprint recognition layer in the display panel shown in FIG. 2 detecting reflected light from fingerprints;
  • FIG. 4 is a schematic structural diagram of an embodiment of a second substrate in area A on the display panel shown in FIG. 1;
  • FIG. 5 is a schematic structural view of another embodiment of the second substrate in the area A on the display panel shown in FIG. 1;
  • FIG. 6 is a schematic structural view of another embodiment of the second substrate in the area A on the display panel shown in FIG. 1;
  • FIG. 7 is a schematic structural diagram of an embodiment corresponding to the embodiment of the second substrate shown in FIG. 4 of the first substrate in the area A on the display panel shown in FIG. 1;
  • FIG. 8 is a schematic structural diagram of an embodiment corresponding to the embodiment of the second substrate shown in FIG. 5 of the first substrate in the area A on the display panel shown in FIG. 1;
  • FIG. 9 is a schematic structural diagram of an embodiment of the first substrate in the area A on the display panel shown in FIG. 1 corresponding to the embodiment of the second substrate shown in FIG. 6.
  • the embodiment of the present application provides a display panel.
  • a second substrate configured with a fingerprint identification layer close to the glass cover of the display panel, the fingerprint identification layer is closer to the user's fingerprint, and the reflected light from the fingerprint reaches the fingerprint.
  • FIG. 1 is a schematic diagram of a planar structure of a display panel provided by an embodiment of the present application
  • FIG. 2 is a schematic diagram of a layered structure of a display panel provided by an embodiment of the present application.
  • the display panel 01 is provided with a plurality of pixel units 02 distributed in an array. It should be noted that the display panel 01 shown in FIG. 1 may be a partial structural diagram of the display panel provided by an embodiment of the present application, or an overall structural diagram.
  • the pixel unit 02 is the basic unit of the display screen of the display panel 01, and the pixel unit 02 is a generalized area on the display panel 01, and the generalized area contains the display panel 01
  • the corresponding structure in the array substrate, the color filter substrate and the liquid crystal layer is not limited.
  • the layered structure of the display panel 01 includes a backlight module 10, a first substrate 30, a liquid crystal layer 40, a second substrate 50 and a glass cover 70.
  • the backlight module 10 is a light-emitting unit of the display panel 01, and is used to provide a light source when the display panel 01 displays images.
  • the light emitting direction of the backlight module 10 faces the first substrate 30, and after light passes through the first substrate 30, the liquid crystal layer 40 and the second substrate 50 in sequence, it is emitted from the glass cover 70, To present a different picture.
  • a lower polarizer 20 is provided on the backlight module 10 to adjust the polarization direction of the light emitted by the backlight module 10.
  • FIG. 7 is a schematic structural diagram of an embodiment of the first substrate in the area A on the display panel shown in FIG. 1.
  • the first substrate 30 is disposed on the lower polarizer 20, and a color filter layer 31 is disposed on the first substrate 30.
  • the color filter layer 31 includes a plurality of color filter units, as shown in FIG. 7 In the illustrated red filter unit 31R, green filter unit 31G, and blue filter unit 31B, each of the color filter units corresponds to one pixel unit 02.
  • the light emitted by the backlight module 10 is white light. After the white light passes through the color filter layer 31, three monochromatic lights of red, green and blue are formed. The combined form will produce different color pictures, so as to realize the color display of the display panel 01.
  • the liquid crystal layer 40 is disposed between the first substrate 30 and the second substrate 50 and contains liquid crystals.
  • the different deflection angles of the liquid crystals in the liquid crystal layer 40 can control the passing state of light, which is an important structure for the display panel 01 to display different pictures.
  • an alignment film is provided between the liquid crystal layer 40 and the first substrate 30, and the alignment film is used to position the liquid crystal at a certain initial deflection angle.
  • the second substrate 50 is disposed opposite to the first substrate 30 and is far away from the backlight module. A gap for accommodating the liquid crystal layer 40 is left between the first substrate 30 and the second substrate 50. At least a thin film transistor array layer (not shown in the figure) and a fingerprint recognition layer 51 are provided on the second substrate 50.
  • the thin film transistor array layer includes functional elements such as thin film transistors, gate lines, data lines, and pixel electrodes, which are used to provide data signals and scan signals for the display panel 01 and control the display function of the display panel 01.
  • the fingerprint identification layer 51 is used to identify user fingerprint information.
  • the fingerprint recognition layer 51 includes a plurality of fingerprint recognition sensors 511, and the fingerprint recognition sensor 511 is electrically connected to an external fingerprint recognition chip.
  • the fingerprint recognition sensor 511 can detect the light reflected by the user's fingerprint and reflect the light from the fingerprint. The information is fed back to the fingerprint recognition chip, and the fingerprint recognition chip recognizes the user's fingerprint based on the fingerprint reflected light information.
  • the fingerprint recognition layer 51 is disposed on the second substrate 50 on the side close to the liquid crystal layer 40, or the fingerprint recognition layer 51 is disposed on the second substrate 50 far away from the One side of the liquid crystal layer 40. It should be understood that disposing the fingerprint recognition layer 51 on the second substrate 50 can utilize the wiring arrangement space on the second substrate 50 to optimize the wiring structure of the fingerprint recognition layer 51, for example,
  • the fingerprint recognition sensor 511 can be connected to the traces of an external fingerprint recognition chip, or the traces connected to a plurality of the fingerprint recognition sensors 511 can be arranged on the data line layer or the gate line layer in the second substrate 50, thereby The wiring arrangement space on the display panel 01 is saved.
  • a touch function layer (not shown in the figure) is further provided on the second substrate 50, and the touch function layer is used to realize the touch function of the display panel 01.
  • an upper polarizer 60 is provided between the second substrate 50 and the glass cover 70 for adjusting the polarization direction of light and optimizing the display effect of the display panel 01.
  • the upper polarizer 60 is provided with a light-transmitting unit 611 corresponding to the fingerprint recognition sensor 511 perpendicularly, and the light-transmitting unit 611 is used to prevent fingerprint reflection light from being weakened when passing through the upper polarizer 60. Block, so that the fingerprint recognition sensor 511 captures the real fingerprint reflected light.
  • the light transmission unit 611 may be a light transmission hole or a collimator provided in the upper polarizer 60.
  • the light reflected by the fingerprint can reach the fingerprint identification sensor 511 after passing through the light transmitting unit 611.
  • both the light-transmitting hole and the collimator can ensure that the fingerprint reflected light passes through the upper polarizer 60 without changing the polarization direction, and the collimator can adjust the propagation direction of the fingerprint reflected light.
  • the reflected light of the fingerprint is directed to the fingerprint identification sensor 511 vertically to ensure the accuracy of fingerprint identification.
  • the glass cover 70 is used to encapsulate the light-emitting surface of the display panel 01 to prevent external objects from wearing the internal components of the display panel 01.
  • a thin-film encapsulation layer (not shown in the figure) may be further provided between the glass cover 70 and the upper polarizer 60, and the thin-film encapsulation layer is used to connect the internal components of the display panel 01 Sealed to prevent corrosion from outside air and moisture.
  • the embodiments of the present application provide the following alternative implementation manners, but are not limited to these several implementation manners.
  • a plurality of pixel electrodes 52 arranged in an array are provided on the second substrate 50, and a plurality of pixel electrodes 52 are provided on the first substrate 30.
  • the electrodes 52 correspond to the color filter units 31 one by one, and each pixel electrode 52 corresponds to one pixel unit 02.
  • the fingerprint recognition sensor 511 and the pixel electrode 52 are arranged staggered, that is, assuming that a plane parallel to the second substrate 50 is a projection plane, the projection of the fingerprint recognition sensor 511 on the projection plane is the same as The projections of the pixel electrodes 52 on the projection plane do not overlap.
  • the pixel electrodes 52 are arranged side by side on the second substrate 50 in multiple rows, each row includes a plurality of the pixel electrodes 52, and a gap is left between the pixel electrodes 52 in two adjacent rows, and the fingerprint
  • the identification sensor 511 is arranged in the gap between the pixel electrodes 52 in two adjacent rows. It should be understood that since each pixel electrode 52 corresponds to one pixel unit 02, the fingerprint recognition sensor 511 is arranged between the pixel units 02 in two adjacent rows.
  • the pixel unit 02 is divided into a red pixel unit, a green pixel unit and a blue pixel unit, respectively corresponding to the red filter unit 31R, the green filter unit 31G and the blue filter unit on the first substrate 30
  • the red pixel electrode 52R, the green pixel electrode 52G, and the blue pixel electrode 52B in each row are periodically arranged in sequence, and every three adjacent pixel electrodes 52 (including one red pixel electrode 52R, one The green pixel electrode 52G and one blue pixel electrode 52B) form a group, and each group corresponds to one fingerprint recognition sensor 511.
  • a plurality of pixel electrodes 52 arranged in an array are provided on the second substrate 50, and a plurality of pixel electrodes 52 arranged in an array are provided on the first substrate 30.
  • the pixel electrodes 52 correspond to the color filter units 31 one by one, and each pixel electrode 52 corresponds to one pixel unit 02.
  • the fingerprint recognition sensor 511 and the pixel electrode 52 are arranged staggered, that is, assuming that a plane parallel to the second substrate 50 is a projection plane, the projection of the fingerprint recognition sensor 511 on the projection plane is the same as The projections of the pixel electrodes 52 on the projection plane do not overlap.
  • the pixel electrodes 52 are arranged side by side on the second substrate 50 in multiple rows, each row includes a plurality of the pixel electrodes 52, the fingerprint recognition sensor 511 and the pixel electrodes 52 are arranged side by side, and are arranged in Between two adjacent pixel electrodes 52 in a single row of the pixel electrodes 52. It should be understood that since each pixel electrode 52 corresponds to one pixel unit 02, the fingerprint recognition sensor 511 is arranged between two adjacent pixel units 02 in a single row of the pixel units 02. .
  • the pixel unit 02 is divided into a red pixel unit, a green pixel unit and a blue pixel unit, respectively corresponding to the red filter unit 31R, the green filter unit 31G and the blue filter unit on the first substrate 30
  • the red pixel electrode 52R, the green pixel electrode 52G, and the blue pixel electrode 52B in each row are periodically arranged in sequence, and every three adjacent pixel electrodes 52 (including one red pixel electrode 52R, one The green pixel electrode 52G and one blue pixel electrode 52B) form a group, and the fingerprint recognition sensor 511 is arranged between adjacent two groups.
  • the second substrate 50 is provided with a plurality of pixel electrodes 52 arranged in an array
  • the first substrate 30 is provided with
  • the pixel electrodes 52 correspond to the color filter units 31 one by one
  • each pixel electrode 52 corresponds to one pixel unit 02.
  • the fingerprint recognition sensor 511 and the pixel electrode 52 are arranged staggered, that is, assuming that a plane parallel to the second substrate 50 is a projection plane, the projection of the fingerprint recognition sensor 511 on the projection plane is the same as The projections of the pixel electrodes 52 on the projection plane do not overlap.
  • the pixel electrodes 52 are arranged side by side on the second substrate 50 in multiple rows, and each row includes a plurality of the pixel electrodes 52. Some of the pixel electrodes 52 have a small area and are defined as the first pixel electrode. The remaining pixel electrodes 52 are defined as second pixel electrodes.
  • the fingerprint recognition sensor 511 and the first pixel electrode are arranged side by side along the column direction. It should be understood that, since each pixel electrode 52 corresponds to one pixel unit 02, and the two have the same shape, the pixel unit 02 also includes a first pixel unit with a smaller area and a smaller area. The second pixel unit is larger, so the fingerprint recognition sensor 511 and the first pixel unit are arranged side by side along the column direction.
  • the pixel unit 02 is divided into a red pixel unit, a green pixel unit and a blue pixel unit, respectively corresponding to the red filter unit 31R, the green filter unit 31G and the blue filter unit on the first substrate 30
  • the red pixel electrode 52R, the green pixel electrode 52G, and the blue pixel electrode 52B in each row are periodically arranged in sequence.
  • the blue pixel electrode 52B is the first pixel electrode
  • the red pixel electrode 52R and the green pixel electrode 52G are the second pixel electrode
  • the fingerprint recognition sensor 511 and the blue pixel electrode 52B are Columns are arranged side by side.
  • the fingerprint recognition layer 51 may cover a partial area or the entire display surface of the display panel 01 to realize partial screen fingerprint recognition and full screen fingerprint recognition, respectively.
  • the second substrate configured with the fingerprint identification layer is arranged close to the glass cover of the display panel, so that the fingerprint identification layer is closer to the user's fingerprint, and the reflected light of the fingerprint is shortened.
  • the path to the fingerprint recognition sensor; and the light-transmitting unit corresponding to the fingerprint recognition sensor is arranged on the upper polarizer to reduce the attenuation of the reflected light of the fingerprint, thereby improving the fingerprint recognition effect.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mathematical Physics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Geometry (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Image Input (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

本申请提供一种显示面板，包括背光模组、第一基板、液晶层、第二基板以及玻璃盖板，其中所述第二基板上配置有指纹识别层，用于识别用户指纹信息。本申请通过将配置有指纹识别层的第二基板靠近所述玻璃盖板设置，使所述指纹识别层更加接近用户指纹，缩短指纹反射光到达指纹识别传感器的路径，提升指纹识别效果。

Description

显示面板 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。
 背景技术
现有的显示装置如智能手机等，指纹识别传感器通常放置在菜单键（home键）的位置，但是随着全面屏时代的到来，显示屏四周边框变得越来越窄，并且菜单键也逐渐被取消，因此出现了在手机背面或侧面放置指纹识别传感器的中间过渡方案，而将指纹识别传感器置于显示屏下或屏内将是指纹识别技术发展的一大趋势。
目前，基于液晶显示技术的屏下指纹识别方式是将指纹识别传感器设置于薄膜晶体管阵列基板上，由背光模组发出的光线经用户指纹反射后被指纹识别传感器捕捉，进而生成用户指纹信息。现有的液晶显示面板结构决定了指纹反射光在到达指纹识别传感器之前需要穿过多层面板结构，如彩膜基板层和液晶层，这些面板结构会不同程度的削弱指纹反射光的强度，造成指纹识别传感器探测的指纹信息不完整或功能失效，严重影响用户使用体验。
 技术问题
现有技术中，液晶显示面板的指纹识别功能受到液晶显示面板的多层结构削弱指纹反射光的影响，而引发指纹识别功能减弱或失效的问题。
 技术解决方案
为了解决上述技术问题，本申请的解决方案如下：
本申请提供一种显示面板，包括：
背光模组，作为所述显示面板的发光单元；
第一基板，设置于所述背光模组上，所述第一基板上设置有彩色滤光层；
第二基板，与所述第一基板相对设置，远离所述背光模组，所述第二基板上至少设置有薄膜晶体管阵列层和指纹识别层，所述指纹识别层用于识别用户指纹信息；
液晶层，设置于所述第一基板与所述第二基板之间，所述液晶层包含液晶；以及
玻璃盖板，设置于所述第二基板上，远离所述液晶层。
在本申请的显示面板中，所述指纹识别层包括多个指纹识别传感器。
在本申请的显示面板中，所述第二基板与所述玻璃盖板之间设置有上偏光片，所述第一基板与所述背光模组之间设置有下偏光片；
所述上偏光片上设置有与所述指纹识别传感器垂直对应的透光单元。
在本申请的显示面板中，所述透光单元是分布于所述上偏光片上的准直器或透光孔。
在本申请的显示面板中，所述指纹识别层靠近所述液晶层设置。
在本申请的显示面板中，所述指纹识别层远离所述液晶层设置。
在本申请的显示面板中，所述第二基板上还设置有用于实现所述显示面板触控功能的触控功能层。
在本申请的显示面板中，所述彩色滤光层上设置有多个彩色滤光单元；
所述第二基板上设置有与所述彩色滤光单元一一对应的像素电极，所述像素电极用于驱动所述液晶偏转；
每一个所述像素电极对应所述显示面板的一个像素单元；
所述指纹识别传感器与所述像素单元错开设置。
在本申请的显示面板中，定义一个与所述第二基板平行的平面为投影平面，所述指纹识别传感器在所述投影平面的上的投影，与所述像素电极在所述投影平面上的投影不发生重合。
在本申请的显示面板中，所述彩色滤光单元包括红色滤光单元、绿色滤光单元和蓝色滤光单元。
在本申请的显示面板中，所述第二基板上的所述像素电极包括红像素电极、绿像素电极和蓝像素电极，所述红像素电极、所述绿像素电极和所述蓝像素电极分别对应所述红色滤光单元、所述绿色滤光单元和所述蓝色滤光单元。
在本申请的显示面板中，所述像素单元在所述显示面板上并排设置多行，所述指纹识别传感器设置于相邻两行所述像素单元之间。
在本申请的显示面板中，所述像素单元在所述显示面板上并排设置多行，所述指纹识别传感器设置于单行所述像素单元中的相邻两个所述像素单元之间。
在本申请的显示面板中，在每一行所述像素单元内，每相邻三个所述像素单元为一个组，每个所述组内设置一个所述指纹识别传感器。
在本申请的显示面板中，所述像素单元在所述显示面板上并排设置多行；
部分所述像素单元的面积较小，定义为第一像素单元，其余像素单元定义为第二像素单元；
所述指纹识别传感器与所述第一像素单元沿列向并排设置。
在本申请的显示面板中，所述指纹识别层覆盖所述显示面板的局部区域。
在本申请的显示面板中，所述指纹识别层覆盖所述显示面板的整个显示区。
本申请又提供一种显示面板，其包括
背光模组，作为所述显示面板的发光单元；
第一基板，设置于所述背光模组上，所述第一基板上设置有彩色滤光层；
第二基板，与所述第一基板相对设置，远离所述背光模组，所述第二基板上至少设置有薄膜晶体管阵列层和指纹识别层，所述指纹识别层用于识别用户指纹信息；
液晶层，设置于所述第一基板与所述第二基板之间，所述液晶层包含液晶；以及
玻璃盖板，设置于所述第二基板上，远离所述液晶层；
所述指纹识别层包括多个指纹识别传感器，所述第二基板与所述玻璃盖板之间设置有上偏光片，所述上偏光片上设置有与所述指纹识别传感器垂直对应的准直器或透光孔。
 有益效果
本申请提供的显示面板，将配置有指纹识别层的第二基板靠近所述显示面板的玻璃盖板设置，使所述指纹识别层更加接近用户指纹，缩短指纹反射光到达指纹识别传感器的路径，消除液晶层等对指纹反射光的影响；并在上偏光片上配置对应指纹识别传感器的透光单元，以减小对指纹反射光的削弱，进而提升指纹识别效果。
 附图说明
为了更清楚地说明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单介绍，显而易见地，下面描述中的附图仅仅是申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本申请实施例提供的显示面板的平面结构示意图；
图2是本申请实施例提供的显示面板的层状结构示意图；
图3是图2所示的显示面板中的指纹识别层探测指纹反射光的示意图；
图4是图1所示的显示面板上区域A中的第二基板的一种实施方式的结构示意图；
图5是图1所示的显示面板上区域A中的第二基板的另一种实施方式的结构示意图；
图6是图1所示的显示面板上区域A中的第二基板的又一种实施方式的结构示意图；
图7是图1所示的显示面板上区域A中的第一基板的与图4所示的第二基板的实施方式相对应的实施方式的结构示意图；
图8是图1所示的显示面板上区域A中的第一基板的与图5所示的第二基板的实施方式相对应的实施方式的结构示意图；
图9是图1所示的显示面板上区域A中的第一基板的与图6所示的第二基板的实施方式相对应的实施方式的结构示意图。
 本发明的实施方式
以下各实施例的说明是参考附加的图示，用以例示本申请可用以实施的特定实施例。本申请所提到的方向用语，例如[上]、[下]、[前]、[后]、[左]、[右]、[内]、[外]、[侧面]等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本申请，而非用以限制本申请。在图中，结构相似的单元是用以相同标号表示。
本申请实施例提供了一种显示面板，通过将配置有指纹识别层的第二基板靠近所述显示面板的玻璃盖板设置，使所述指纹识别层更加接近用户指纹，缩短指纹反射光到达指纹识别传感器的路径；并在上偏光片上配置对应指纹识别传感器的透光单元，以减小对指纹反射光的削弱，进而提升指纹识别效果。
如图1和图2所示，其中图1是本申请实施例提供的显示面板的平面结构示意图，图2是本申请实施例提供的显示面板的层状结构示意图。所述显示面板01上设置有阵列分布的多个像素单元02。需要说明的是，图1所示的显示面板01可以是本申请实施例提供的显示面板的局部结构示意图，也可以是整体结构示意图，对所述显示面板01中所包含的像素单元02的数量不做限制；所述像素单元02是所述显示面板01显示画面的基本单元，并且所述像素单元02是所述显示面板01上的概括性区域，该概括性区域内包含所述显示面板01的阵列基板、彩膜基板以及液晶层中的对应结构。
所述显示面板01的层状结构包括背光模组10、第一基板30、液晶层40、第二基板50以及玻璃盖板70。
所述背光模组10是所述显示面板01的发光单元，用于为所述显示面板01显示画面时提供光源。所述背光模组10的出光方向朝向所述第一基板30，光线依次经过所述第一基板30、所述液晶层40和所述第二基板50后，由所述玻璃盖板70射出，以呈现不同的画面。
可选地，所述背光模组10上设置有下偏光片20，以调整由所述背光模组10射出的光线的偏振方向。
参考图1、图2和图7所示，其中图7是图1所示的显示面板上区域A中的第一基板的一种实施方式的结构示意图。所述第一基板30设置于所述下偏光片20上，所述第一基板30上配置有彩色滤光层31，所述彩色滤光层31包括多个彩色滤光单元，例如图7中所示的红色滤光单元31R、绿色滤光单元31G和蓝色滤光单元31B，每一个所述彩色滤光单元对应一个所述像素单元02。应当理解的是，所述背光模组10发出的光线是白色光，该白色光经过所述彩色滤光层31后形成红、绿、蓝三种单色光，这三种单色光的不同组合形式会产生不同的彩色画面，从而实现所述显示面板01的彩色显示。
所述液晶层40设置于所述第一基板30和所述第二基板50之间，其内包含液晶。所述液晶层40中的液晶的不同偏转角度可以调控光线的通过状态，是所述显示面板01显示不同画面的重要结构。可选地，所述液晶层40与所述第一基板30之间设置有配向膜，所述配向膜用于将所述液晶定位在某一初始偏转角。
所述第二基板50与所述第一基板30相对设置，远离所述背光模组，所述第一基板30与所述第二基板50之间留有容纳所述液晶层40的间隙。所述第二基板50上至少设置有薄膜晶体管阵列层（图中未示出）和指纹识别层51。所述薄膜晶体管阵列层包括薄膜晶体管、栅极线、数据线以及像素电极等功能元件，用于为所述显示面板01提供数据信号和扫描信号，并控制所述显示面板01的显示功能。
所述指纹识别层51用于识别用户指纹信息。可选地，所述指纹识别层51包括多个指纹识别传感器511，所述指纹识别传感器511电性连接外部指纹识别芯片，所述指纹识别传感器511可以探测用户指纹反射光，并将指纹反射光的信息反馈至指纹识别芯片，指纹识别芯片根据该指纹反射光信息识别用户指纹。
可选地，所述指纹识别层51设置于所述第二基板50上的靠近所述液晶层40的一侧，或所述指纹识别层51设置于所述第二基板50上的远离所述液晶层40的一侧。应当理解的是，将所述指纹识别层51设置于所述第二基板50上可以利用所述第二基板50上的走线布置空间，优化所述指纹识别层51的走线结构，例如，可以将所述指纹识别传感器511连接外部指纹识别芯片的走线，或连接多个所述指纹识别传感器511的走线设置于所述第二基板50中的数据线层或栅极线层，从而节约所述显示面板01上的走线布置空间。
可选地，所述第二基板50上还设置有触控功能层（图中未示出），所述触控功能层用于实现所述显示面板01的触控功能。
可选地，所述第二基板50与所述玻璃盖板70之间设置有上偏光片60，用于调整光线的偏振方向，优化所述显示面板01的显示效果。所述上偏光片60上设置有与所述指纹识别传感器511垂直对应的透光单元611，所述透光单元611用于使指纹反射光在穿过所述上偏光片60时不被削弱和阻挡，从而使所述指纹识别传感器511捕捉到真实的指纹反射光。
可选地，所述透光单元611可以是设置于所述上偏光片60中的透光孔或准直器。如图3所示，经指纹反射的光线通过所述透光单元611后方可到达所述指纹识别传感器511。应当理解的是，所述透光孔和所述准直器均可以保证指纹反射光穿过所述上偏光片60而不改变偏振方向，所述准直器可以调整指纹反射光的传播方向，使指纹反射光垂直射向所述指纹识别传感器511，保证了指纹识别精度。
所述玻璃盖板70用于对所述显示面板01的出光面进行封装，防止外界物体磨损所述显示面板01的内部元件。可选地，所述玻璃盖板70与所述上偏光片60之间还可以设置有薄膜封装层（图中未示出），所述薄膜封装层用于将所述显示面板01的内部元件密封，以防止外界空气和水分的侵蚀。
关于所述指纹识别传感器511在所述第二基板50上的分布特点，本申请实施例提供了以下可供选择的实施方式，但并不仅限于这几种实施方式。
根据其中一种实施方式，如图1、图4和图7所示，所述第二基板50上设置有多个阵列排布的像素电极52，所述第一基板30上设置与所述像素电极52一一对应的彩色滤光单元31，每一个所述像素电极52对应一个所述像素单元02。所述指纹识别传感器511与所述像素电极52错开设置，即：假设一个与所述第二基板50平行的平面为投影平面，所述指纹识别传感器511在所述投影平面的上的投影，与所述像素电极52在所述投影平面上的投影不发生重合。
进一步地，所述像素电极52在所述第二基板50上并排设置多行，每一行包含多个所述像素电极52，相邻两行所述像素电极52之间留有空隙，所述指纹识别传感器511设置于相邻两行所述像素电极52之间的空隙中。应当理解的是，由于每一个所述像素电极52分别对应一个所述像素单元02，所以所述指纹识别传感器511设置于相邻两行所述像素单元02之间。
可选地，所述像素单元02分为红像素单元、绿像素单元和蓝像素单元，分别对应于所述第一基板30上的红色滤光单元31R、绿色滤光单元31G和蓝色滤光单元31B，以及对应于所述第二基板50上的红像素电极52R、绿像素电极52G和蓝像素电极52B。每行的所述红像素电极52R、所述绿像素电极52G和所述蓝像素电极52B按顺序周期排列，每相邻的三个所述像素电极52（包含一个所述红像素电极52R、一个所述绿像素电极52G和一个所述蓝像素电极52B）为一个组，每组对应设置一个所述指纹识别传感器511。
根据其中另一种实施方式，如图1、图5和图8所示，所述第二基板50上设置有多个阵列排布的像素电极52，所述第一基板30上设置与所述像素电极52一一对应的彩色滤光单元31，每一个所述像素电极52对应一个所述像素单元02。所述指纹识别传感器511与所述像素电极52错开设置，即：假设一个与所述第二基板50平行的平面为投影平面，所述指纹识别传感器511在所述投影平面的上的投影，与所述像素电极52在所述投影平面上的投影不发生重合。
进一步地，所述像素电极52在所述第二基板50上并排设置多行，每一行包含多个所述像素电极52，所述指纹识别传感器511与所述像素电极52并排设置，并设置于单行所述像素电极52中的相邻两个所述像素电极52之间。应当理解的是，由于每一个所述像素电极52分别对应一个所述像素单元02，所以所述指纹识别传感器511设置于单行所述像素单元02中的相邻两个所述像素单元02之间。
可选地，所述像素单元02分为红像素单元、绿像素单元和蓝像素单元，分别对应于所述第一基板30上的红色滤光单元31R、绿色滤光单元31G和蓝色滤光单元31B，以及对应于所述第二基板50上的红像素电极52R、绿像素电极52G和蓝像素电极52B。每行的所述红像素电极52R、所述绿像素电极52G和所述蓝像素电极52B按顺序周期排列，每相邻的三个所述像素电极52（包含一个所述红像素电极52R、一个所述绿像素电极52G和一个所述蓝像素电极52B）为一个组，所述指纹识别传感器511设置于相邻两组之间。
根据其中又一种实施方式，如图1、图6和图9所示，所述第二基板50上设置有多个阵列排布的像素电极52，所述第一基板30上设置与所述像素电极52一一对应的彩色滤光单元31，每一个所述像素电极52对应一个所述像素单元02。所述指纹识别传感器511与所述像素电极52错开设置，即：假设一个与所述第二基板50平行的平面为投影平面，所述指纹识别传感器511在所述投影平面的上的投影，与所述像素电极52在所述投影平面上的投影不发生重合。
进一步地，所述像素电极52在所述第二基板50上并排设置多行，每一行包含多个所述像素电极52，其中部分所述像素电极52的面积较小，定义为第一像素电极，其余所述像素电极52定义为第二像素电极。所述指纹识别传感器511与第一像素电极沿列向并排设置。应当理解的是，由于每一个所述像素电极52分别对应一个所述像素单元02，并且二者在形状上具有一致性，所以所述像素单元02也包括面积较小的第一像素单元和面积较大的第二像素单元，所以所述指纹识别传感器511与所述第一像素单元沿列向并排设置。
可选地，所述像素单元02分为红像素单元、绿像素单元和蓝像素单元，分别对应于所述第一基板30上的红色滤光单元31R、绿色滤光单元31G和蓝色滤光单元31B，以及对应于所述第二基板50上的红像素电极52R、绿像素电极52G和蓝像素电极52B。每行的所述红像素电极52R、所述绿像素电极52G和所述蓝像素电极52B按顺序周期排列。其中所述蓝像素电极52B为所述第一像素电极，所述红像素电极52R和所述绿像素电极52G为所述第二像素电极，所述指纹识别传感器511与所述蓝像素电极52B沿列向并排设置。
另外，需要说明的是，本申请实施例提供的显示面板01中，所述指纹识别层51可以覆盖所述显示面板01的局部区域或整个显示面，以分别实现局部屏幕指纹识别和全屏指纹识别。
综上所述，本申请实施例提供的显示面板，将配置有指纹识别层的第二基板靠近所述显示面板的玻璃盖板设置，使所述指纹识别层更加接近用户指纹，缩短指纹反射光到达指纹识别传感器的路径；并在上偏光片上配置对应指纹识别传感器的透光单元，以减小对指纹反射光的削弱，进而提升指纹识别效果。
需要说明的是，虽然本申请以具体实施例揭露如上，但上述实施例并非用以限制本申请，本领域的普通技术人员，在不脱离本申请的精神和范围内，均可作各种更动与润饰，因此本申请的保护范围以权利要求界定的范围为准。

Claims (18)

  1. 一种显示面板，其包括：
    背光模组，作为所述显示面板的发光单元；
    第一基板，设置于所述背光模组上，所述第一基板上设置有彩色滤光层；
    第二基板，与所述第一基板相对设置，远离所述背光模组，所述第二基板上至少设置有薄膜晶体管阵列层和指纹识别层，所述指纹识别层用于识别用户指纹信息；
    液晶层，设置于所述第一基板与所述第二基板之间，所述液晶层包含液晶；以及
    玻璃盖板，设置于所述第二基板上，远离所述液晶层。
  2. 根据权利要求1所述的显示面板，其中，所述指纹识别层包括多个指纹识别传感器。
  3. 根据权利要求2所述的显示面板，其中，所述第二基板与所述玻璃盖板之间设置有上偏光片，所述第一基板与所述背光模组之间设置有下偏光片；
    所述上偏光片上设置有与所述指纹识别传感器垂直对应的透光单元。
  4. 根据权利要求3所述的显示面板，其中，所述透光单元是分布于所述上偏光片上的准直器或透光孔。
  5. 根据权利要求3所述的显示面板，其中，所述指纹识别层靠近所述液晶层设置。
  6. 根据权利要求3所述的显示面板，其中，所述指纹识别层远离所述液晶层设置。
  7. 根据权利要求3所述的显示面板，其中，所述第二基板上还设置有用于实现所述显示面板触控功能的触控功能层。
  8. 根据权利要求2所述的显示面板，其中，所述彩色滤光层上设置有多个彩色滤光单元；
    所述第二基板上设置有与所述彩色滤光单元一一对应的像素电极，所述像素电极用于驱动所述液晶偏转；
    每一个所述像素电极对应所述显示面板的一个像素单元；
    所述指纹识别传感器与所述像素单元错开设置。
  9. 根据权利要求8所述的显示面板，其中，定义一个与所述第二基板平行的平面为投影平面，所述指纹识别传感器在所述投影平面的上的投影，与所述像素电极在所述投影平面上的投影不发生重合。
  10. 根据权利要求8所述的显示面板，其中，所述彩色滤光单元包括红色滤光单元、绿色滤光单元和蓝色滤光单元。
  11. 根据权利要求10所述的显示面板，其中，所述第二基板上的所述像素电极包括红像素电极、绿像素电极和蓝像素电极，所述红像素电极、所述绿像素电极和所述蓝像素电极分别对应所述红色滤光单元、所述绿色滤光单元和所述蓝色滤光单元。
  12. 根据权利要求8所述的显示面板，其中，所述像素单元在所述显示面板上并排设置多行，所述指纹识别传感器设置于相邻两行所述像素单元之间。
  13. 根据权利要求8所述的显示面板，其中，所述像素单元在所述显示面板上并排设置多行，所述指纹识别传感器设置于单行所述像素单元中的相邻两个所述像素单元之间。
  14. 根据权利要求13所述的显示面板，其中，在每一行所述像素单元内，每相邻三个所述像素单元为一个组，每个所述组内设置一个所述指纹识别传感器。
  15. 根据权利要求8所述的显示面板，其中，所述像素单元在所述显示面板上并排设置多行；
    部分所述像素单元的面积较小，定义为第一像素单元，其余像素单元定义为第二像素单元；
    所述指纹识别传感器与所述第一像素单元沿列向并排设置。
  16. 根据权利要求1所述的显示面板，其中，所述指纹识别层覆盖所述显示面板的局部区域。
  17. 根据权利要求1所述的显示面板，其中，所述指纹识别层覆盖所述显示面板的整个显示区。
  18. 一种显示面板，其包括：
    背光模组，作为所述显示面板的发光单元；
    第一基板，设置于所述背光模组上，所述第一基板上设置有彩色滤光层；
    第二基板，与所述第一基板相对设置，远离所述背光模组，所述第二基板上至少设置有薄膜晶体管阵列层和指纹识别层，所述指纹识别层用于识别用户指纹信息；
    液晶层，设置于所述第一基板与所述第二基板之间，所述液晶层包含液晶；以及
    玻璃盖板，设置于所述第二基板上，远离所述液晶层；
    所述指纹识别层包括多个指纹识别传感器，所述第二基板与所述玻璃盖板之间设置有上偏光片，所述上偏光片上设置有与所述指纹识别传感器垂直对应的准直器或透光孔。
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