WO2019100524A1 - 一种全屏指纹识别触控显示屏 - Google Patents

一种全屏指纹识别触控显示屏 Download PDF

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Publication number
WO2019100524A1
WO2019100524A1 PCT/CN2017/119410 CN2017119410W WO2019100524A1 WO 2019100524 A1 WO2019100524 A1 WO 2019100524A1 CN 2017119410 W CN2017119410 W CN 2017119410W WO 2019100524 A1 WO2019100524 A1 WO 2019100524A1
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WO
WIPO (PCT)
Prior art keywords
fingerprint recognition
screen
full
touch
layer
Prior art date
Application number
PCT/CN2017/119410
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English (en)
French (fr)
Inventor
叶剑
Original Assignee
武汉华星光电半导体显示技术有限公司
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Application filed by 武汉华星光电半导体显示技术有限公司 filed Critical 武汉华星光电半导体显示技术有限公司
Priority to US15/743,245 priority Critical patent/US10719680B2/en
Publication of WO2019100524A1 publication Critical patent/WO2019100524A1/zh

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Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/40—OLEDs integrated with touch screens
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04166—Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving
    • G06F3/041661—Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving using detection at multiple resolutions, e.g. coarse and fine scanning; using detection within a limited area, e.g. object tracking window
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • 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
    • G06V40/1306—Sensors therefor non-optical, e.g. ultrasonic or capacitive sensing
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/84—Passivation; Containers; Encapsulations
    • H10K50/844—Encapsulations
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/87—Passivation; Containers; Encapsulations
    • H10K59/873—Encapsulations
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K77/00—Constructional details of devices covered by this subclass and not covered by groups H10K10/80, H10K30/80, H10K50/80 or H10K59/80
    • H10K77/10—Substrates, e.g. flexible substrates
    • H10K77/111—Flexible substrates
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04112—Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/60—OLEDs integrated with inorganic light-sensitive elements, e.g. with inorganic solar cells or inorganic photodiodes
    • H10K59/65—OLEDs integrated with inorganic image sensors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/549—Organic PV cells

Definitions

  • the present invention relates to the field of touch display screens, and more particularly to a full screen fingerprint recognition touch screen display.
  • the touch display panel and the fingerprint recognition module in the smart phone are usually independent modules, which are separately manufactured and then assembled together; at present, fingerprint recognition usually requires pressing a fingerprint on a specific fingerprint recognition module area to implement fingerprint recognition, such as Home button for mobile phones such as Iphone.
  • the independent fingerprint identification module usually needs the body opening and the fingerprint recognition module to be embedded in the body; thus affecting the integrity of the mobile phone design, and the independent fingerprint recognition module usually compresses the screen display area (such as pre-fingerprint recognition). ), reducing the screen ratio.
  • the fingerprint recognition display screen of the prior art, the touch display panel and the fingerprint recognition module are independent modules, and the fingerprint recognition can be performed by pressing the fingerprint on the specific fingerprint recognition module area, thereby affecting the integrity of the display device. And reduce the screen ratio.
  • the invention provides a full-screen fingerprint recognition touch display screen, which can integrate the touch display panel and the fingerprint recognition module, so that fingerprint recognition can be performed in the full screen range, thereby improving the integrity of the display device and the screen ratio.
  • the invention provides a full screen fingerprint recognition touch screen display, comprising:
  • An anode layer is prepared on the surface of the thin film transistor layer
  • An organic light-emitting layer is prepared on the surface of the anode layer, the organic light-emitting layer includes a pixel unit, and the pixel unit includes three sub-pixels;
  • mesh metal wire disposed on the thin film encapsulation layer, wherein the mesh metal wire is made of one or more alloy materials of titanium, aluminum, molybdenum, copper, gold, silver;
  • the grid metal line is disposed at a position of the gap, and the grid metal lines are patterned to form fingerprint sensing electrodes independent of each other, and the fingerprint sensing electrode Connect a switch unit.
  • the grid metal wire is prepared on a surface of the thin film encapsulation layer away from the side of the flexible substrate, and distributed over the entire surface of the thin film encapsulation layer.
  • the mesh metal wire is prepared on an inner surface of the protective cover and distributed over the entire surface of the protective cover.
  • the grid metal lines are patterned to form at least two fingerprint sensing electrodes, and a spacing between two adjacent fingerprint sensing electrodes is the same as a width of the gap.
  • the width of the grid metal lines is less than or equal to the width of the gap between the sub-pixels.
  • the switch unit controls the corresponding fingerprint sensing electrode to conduct, and performs fingerprint capacitance sensing for identification; at the time of the touch operation, at least two of the switch units are closed.
  • a touch sensing electrode is formed to determine a touch location.
  • the touch sensing electrode is connected to the touch sensing controller, and the fingerprint sensing electrode is connected to the fingerprint sensing controller.
  • the grid metal wire is a high-resolution metal wire whose resolution satisfies a predetermined value.
  • the fingerprint recognition and touch sensing manner of the full-screen fingerprint recognition touch display screen is self-capacitance sensing.
  • the invention also provides a full screen fingerprint recognition touch screen display, comprising:
  • An anode layer is prepared on the surface of the thin film transistor layer
  • An organic light-emitting layer is prepared on the surface of the anode layer, the organic light-emitting layer includes a pixel unit, and the pixel unit includes three sub-pixels;
  • the grid metal line is disposed at a position of the gap, and the grid metal lines are patterned to form fingerprint sensing electrodes independent of each other, and the fingerprint sensing electrode Connect a switch unit.
  • the grid metal wire is prepared on a surface of the thin film encapsulation layer away from the flexible substrate side and distributed over the entire surface of the thin film encapsulation layer.
  • the mesh metal wire is prepared on an inner surface of the protective cover and distributed over the entire surface of the protective cover.
  • the grid metal lines are patterned to form at least two fingerprint sensing electrodes, and a spacing between two adjacent fingerprint sensing electrodes is the same as a width of the gap.
  • the width of the grid metal line is less than or equal to the width of the gap between the sub-pixels.
  • the switch unit controls the corresponding fingerprint sensing electrode to conduct, and performs fingerprint capacitance sensing for identification; during the touch operation, at least two of the switch units are closed to form a touch sensing electrode to determine Touch the location.
  • the The touch sensing electrode is connected to the touch sensing controller, and the fingerprint sensing electrode is connected to the fingerprint sensing controller.
  • the grid metal wire is a high-resolution metal wire whose resolution satisfies a predetermined value.
  • Fingerprint recognition and touch sensing are self-capacitive sensing.
  • the invention has the beneficial effects that the fingerprint recognition touch screen provided by the present invention passes through the R/G/B of the touch display panel compared to the existing fingerprint recognition touch screen display.
  • a high-resolution metal mesh of the entire surface is disposed at a gap position of the illuminating pixel, and a separate fingerprint sensing electrode is formed and connected to the switch unit, and the fingerprint recognition function and the touch function are integrated on the touch display panel, thereby enabling touch
  • the control display panel and the fingerprint identification module are integrated, and the fingerprint identification module does not need to be separately produced, thereby making the fingerprint identification more flexible and convenient, reducing the cost, simplifying the structure, improving the integrity of the display device and the screen ratio, and realizing full-screen fingerprint recognition. .
  • FIG. 1 is a structural diagram of a full-screen fingerprint recognition touch display screen according to an embodiment of the present invention.
  • FIG. 2 is a distribution diagram of a fingerprint sensing electrode according to an embodiment of the present invention.
  • FIG. 3 is a structural diagram of a touch sensing electrode according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of the principle of fingerprint recognition and touch sensing according to an embodiment of the present invention.
  • the invention is directed to the existing fingerprint recognition touch display screen, and solves the prior art fingerprint recognition touch display screen.
  • the touch display panel and the fingerprint recognition module are independent modules, and fingerprints need to be pressed on a specific fingerprint recognition module area to implement fingerprint recognition, thereby affecting display device integrity and reducing screen ratio.
  • the technical problem of the present invention can solve the drawback.
  • the thin film transistor layer 100 includes a first gate insulating layer 103, a second gate insulating layer 104, an interlayer insulating layer 105, a planarization layer 107, and a switching unit 106.
  • the source and the drain of the switching unit 106 are located.
  • the planarization layer 107 is connected to the active layer located in the first gate insulating layer 103 through via holes located in the inter-insulating layer 105 and the second gate insulating layer 104.
  • the grid metal line 113 may be prepared on the upper surface or the lower surface of the thin film encapsulation layer 111. If it is a flexible AMOLED display panel, the grid metal line 113 may be fabricated on the thin film package of the AMOLED display panel.
  • the upper surface of the layer 111; the mesh metal lines 113 are distributed over the entire surface of the thin film encapsulation layer 111.
  • the grid metal lines 113 are patterned to form at least two fingerprint sensing electrodes.
  • Material of the grid metal line 113 It is one or more alloy materials of titanium, aluminum, molybdenum, copper, gold, and silver.
  • the isolation pillar 114 for separating different sub-pixels
  • the grid metal line 113 corresponds to the position of the isolation pillar 114, and the width is smaller than
  • the width of the isolation pillar 114 is described, and the coverage of the grid metal line 113 is within the coverage of the isolation pillar 114.
  • the anode layer 108 and the cathode layer 110 sandwich the organic light-emitting layer 109, and the anode layer 108 is connected to the drain of the switching unit 106 through a via of the planarization layer 107.
  • the mesh metal line 113 may be further prepared on an inner surface of the protective cover 112 and distributed over the entire surface of the protective cover 112; the width of the mesh metal line 113 is less than or equal to the sub-surface The width of the gap between pixels.
  • the grid metal lines 113 are patterned to form at least two fingerprint sensing electrodes, and the spacing between two adjacent fingerprint sensing electrodes is the same as the width of the gap.
  • the fingerprint sensing electrode distribution diagram is The grid metal lines may be formed on the upper surface or the lower surface of the thin film encapsulation layer 201 of the flexible AMOLED display panel, and the grid metal lines are patterned to form the fingerprint sensing electrodes 202 distributed in an array, and the grid metal lines are patterned. Forming at least two of the fingerprint sensing electrodes 202, and gaps between the two adjacent fingerprint sensing electrodes 202 are insulated from each other, and the fingerprint sensing electrode 202 is connected to the switch unit through a sensing electrode line 203, and the fingerprint sensing The electrodes 202 are distributed throughout the thin film encapsulation layer 201.
  • the structure of the touch sensing electrode provided by the embodiment of the present invention is
  • the organic light-emitting layer includes a pixel unit, and the pixel unit includes three sub-pixels 301.
  • a gap is formed between two adjacent sub-pixels 301.
  • the gap is used to define different sub-pixels 301, and the gap is a spacer.
  • the grid metal line 302 is prepared on the surface of the thin film encapsulation layer, and the grid metal line 302 is patterned to form the fingerprint sensing electrode 303, which is independent of each other.
  • the fingerprint sensing electrode 303 is connected to a switching unit.
  • the spacing width between two adjacent fingerprint sensing electrodes 303 may be the width of the gap.
  • the width of the grid metal line 302 is less than or equal to the width of the gap between the sub-pixels.
  • the grid metal line 302 is A high-resolution metal wire whose resolution satisfies a predetermined value, that is, the resolution required for fingerprint recognition.
  • At least two of the fingerprint sensing electrodes 303 form a touch sensing electrode 304, and the two adjacent touch sensing electrodes 304 are insulated from each other to determine the position of the touched point.
  • the touch display panel and the fingerprint recognition module are integrated, When the fingerprint recognition operation is performed, the switch unit controls the corresponding fingerprint sensing electrode 303 to conduct, and performs fingerprint capacitance sensing for identification; at the time of the touch operation, at least two of the switch units are closed to form a touch sensing electrode. 304, performing touch capacitance sensing to determine the touch position.
  • FIG. 4 is a schematic diagram showing the principle of fingerprint recognition and touch sensing provided by an embodiment of the present invention.
  • the fingerprint sensing electrode 406 is connected to a sensing electrode line 404, and the sensing electrode line 404 is connected to a switching unit 402.
  • the switching unit 402 controls a single independent finger.
  • the sensing electrode 406 is turned on, connected to the fingerprint sensing controller 403 for fingerprint capacitive sensing, and performs fingerprint recognition; when the touch operation is performed, the switching unit 402 controls at least two adjacent fingers.
  • the pattern sensing electrode 406 is connected to form a large touch sensing electrode 405, and at least two of the switching units 402 that form the touch sensing electrode 405 are closed after being completely closed.
  • the sensing electrode line 404 can be connected to the touch sensing controller 401 for touch capacitance sensing to determine the touch position.
  • the fingerprint sensing electrodes 406 are distributed throughout the thin film encapsulation layer, so this embodiment can be implemented Full screen fingerprint recognition.
  • the fingerprint recognition and the touch function in this embodiment adopt a self-capacitance sensing mode.
  • the capacitance of the finger is superimposed on the capacitance of the touch display screen body, so that The screen capacitance is increased to detect.
  • the touch display panel further includes a driving chip, and the driving chip is used for time-division driving of the fingerprint recognition and the touch function, when the touch display panel is in the fingerprint recognition mode or the touch mode.
  • the driving chip provides a corresponding driving signal for fingerprint recognition or touch sensing.
  • the fingerprint sensing electrode is used as a fingerprint in the fingerprint recognition mode, and at least two of the fingerprint sensing electrodes are used as touch sensing electrodes in the touch mode to perform touch capacitance sensing, and the fingerprint sensing electrode Sharing an electrode layer with the touch sensing electrode and sharing a driving chip greatly simplifies the structure and manufacturing process of the touch display panel.
  • the fingerprint recognition touch screen provided by the present invention is adopted in the touch display panel.
  • R/G/B A high-resolution metal mesh of the entire surface is disposed at a gap position of the illuminating pixel, and an independent fingerprint sensing electrode is formed and connected to the switch unit to integrate the fingerprint recognition function and the touch function onto the touch display panel, thereby enabling
  • the touch display panel and the fingerprint recognition module are integrated, and the fingerprint recognition module does not need to be separately manufactured, thereby making the fingerprint recognition more flexible and convenient, reducing the cost, simplifying the structure, improving the display device integrity and the screen ratio, and realizing Full screen fingerprint recognition.

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Optics & Photonics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Image Input (AREA)
  • Position Input By Displaying (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

一种全屏指纹识别触控显示屏，包括开关单元、像素单元以及网格金属线（302），一像素单元包括三个子像素（301）；其中，相邻子像素（301）间存在间隙，网格金属线（302）正对于间隙的位置设置，网格金属线（302）图案化后形成彼此独立的指纹感应电极（303），一指纹感应电极（303）连接一开关单元。

Description

一种全屏指纹识别触控显示屏 技术领域
本发明涉及触控显示屏领域，尤其涉及一种全屏指纹识别触控显示屏。
背景技术
目前智能手机里的触控显示面板与指纹识别模块通常都是独立模块，分开制作，然后再组装在一起；目前指纹识别，通常需要在特定的指纹识别模块区域上按压指纹才能实现指纹辨识，如 Iphone 等手机的 Home 键。
目前独立的指纹识别模块通常需要机身开孔、将指纹识别模块镶嵌到机身中；因此影响手机设计的整体性，同时独立的指纹识别模块通常会压缩屏幕显示区域 ( 如前置指纹识别 ) ，降低屏占比。
综上所述，现有技术的指纹识别触控显示屏，触控显示面板与指纹识别模块是独立模块，需在特定的指纹识别模块区域上按压指纹才能实现指纹辨识，从而影响显示装置整体性和降低屏占比。
 技术问题
本发明提供一种全屏指纹识别触控显示屏，能使触控显示面板与指纹识别模块一体化，从而在全屏范围内均可进行指纹识别，进而提高显示装置整体性和屏占比。
技术解决方案
为解决上述问题，本发明提供的技术方案如下：
本发明提供一种全屏指纹识别触控显示屏，包括：
柔性基板；
缓冲层，制备于所述柔性基板表面；
薄膜晶体管层，制备于所述缓冲层表面；
阳极层，制备于所述薄膜晶体管层表面；
有机发光层，制备于所述阳极层表面，所述有机发光层包括像素单元，一所述像素单元包括三个子像素；
阴极层，制备于所述有机发光层表面；
薄膜封装层，制备于所述阴极层表面；以及
网格金属线，设置于所述薄膜封装层上，所述网格金属线的材料为钛、铝、钼、铜、金、银中的一种或者一种以上的合金材料；
保护盖板，设置于所述薄膜封装层上；
其中，相邻所述子像素间存在间隙，所述网格金属线正对于所述间隙的位置设置，所述网格金属线图案化后形成彼此独立的指纹感应电极，一所述指纹感应电极连接一开关单元。
根据本发明一优选实施例，所述网格金属线制备于所述薄膜封装层远离所述柔性基板一侧的表面，且分布于整个所述薄膜封装层表面。
根据本发明一优选实施例，所述网格金属线制备于所述保护盖板的内表面，且分布于整个所述保护盖板表面。
根据本发明一优选实施例，所述网格金属线图案化后形成至少两个指纹感应电极，相邻两个所述指纹感应电极之间的间距与所述间隙的宽度相同。
根据本发明一优选实施例，所述网格金属线的宽度小于或等于所述子像素间的所述间隙的宽度。
根据本发明一优选实施例，指纹识别操作时，所述开关单元控制相应的所述指纹感应电极导通，进行指纹电容感应，进行识别；在触控操作时，至少两个所述开关单元闭合形成一触控感应电极以确定触摸位置。
根据本发明一优选实施例，所述触控感应电极连接到触控感应控制器，所述指纹感应电极连接到指纹感应控制器。
根据本发明一优选实施例，所述网格金属线为高解析度的金属线，其解析度满足预定值。
根据本发明一优选实施例，所述全屏指纹识别触控显示屏的指纹识别及触控的感应方式为自电容式感应。
本发明还提供 一种全屏指纹识别触控显示屏 ，包括：
柔性基板；
缓冲层，制备于所述柔性基板表面；
薄膜晶体管层，制备于所述缓冲层表面；
阳极层，制备于所述薄膜晶体管层表面；
有机发光层，制备于所述阳极层表面，所述有机发光层包括像素单元，一所述像素单元包括三个子像素；
阴极层，制备于所述有机发光层表面；
薄膜封装层，制备于所述阴极层表面；以及
网格金属线，设置于所述薄膜封装层上；
保护盖板，设置于所述薄膜封装层上；
其中，相邻所述子像素间存在间隙，所述网格金属线正对于所述间隙的位置设置，所述网格金属线图案化后形成彼此独立的指纹感应电极，一所述指纹感应电极连接一开关单元。
根据本发明一优选实施例， 所述网格金属线制备于所述薄膜封装层远离所述柔性基板一侧的表面，且分布于整个所述薄膜封装层表面。
根据本发明一优选实施例， 所述网格金属线制备于所述保护盖板的内表面，且分布于整个所述保护盖板表面。
根据本发明一优选实施例， 所述网格金属线图案化后形成至少两个指纹感应电极，相邻两个所述指纹感应电极之间的间距与所述间隙的宽度相同。
根据本发明一优选实施例， 所述网格金属线的宽度小于或等于所述子像素间的所述间隙的宽度。
根据本发明一优选实施例， 指纹识别操作时，所述开关单元控制相应的所述指纹感应电极导通，进行指纹电容感应，进行识别；在触控操作时，至少两个所述开关单元闭合形成一触控感应电极以确定触摸位置。
根据本发明一优选实施例，所述 触控感应电极连接到触控感应控制器，所述指纹感应电极连接到指纹感应控制器。
根据本发明一优选实施例， 所述网格金属线为 高解析度的金属线，其解析度满足预定值。
根据本发明一优选实施例，所述
全屏指纹识别触控显示屏的
指纹识别及触控的感应方式为自电容式感应。
 有益效果
本发明的有益效果为：相较于现有的指纹识别触控显示屏，本发明所提供的指纹识别触控显示屏，通过在触控显示面板的 R/G/B 发光像素的间隙位置处设置整面的高分辨率金属网格，图案化形成独立的指纹感应电极并连接开关单元，将指纹识别功能及触控功能集成到触控显示面板上，因此可以使得触控显示面板与指纹识别模块一体化，无需单独制作指纹识别模块，从而使得指纹识别更佳灵活便捷，并降低成本，精简了结构，提高了显示装置整体性和屏占比，实现全屏指纹识别 。
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发明的一些实施例，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 为本发明实施例提供的全屏指纹识别触控显示屏的结构图；
图 2 为本发明实施例提供的指纹感应电极分布图；
图 3 为本发明实施例提供的触控感应电极结构图；
图 4 为本发明实施例提供的指纹识别与触控感应的原理示意图 。
 本发明的最佳实施方式
以下各实施例的说明是参考附加的图示，用以例示本发明可用以实施的特定实施例。本发明所提到的方向用语，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发明，而非用以限制本发明。在图中，结构相似的单元是用以相同标号表示。
本发明针对现有的 指纹识别触控显示屏 ，解决了现有技术的 指纹识别触控显示屏 ， 触控显示面板与指纹识别模块是独立模块，需在特定的指纹识别模块区域上按压指纹才能实现指纹辨识，从而影响显示装置整体性和降低屏占比 的技术问题，本发明实施例能够解决该缺陷。
如图 1 所示，本发明实施例提供的 全屏指纹识别触控显示屏的结构图 ，本发明的 指纹识别触控显示屏 包括： 柔性基板101；缓冲层102，制备于所述柔性基板101表面；薄膜晶体管层100，制备于所述缓冲层102表面；阳极层108，制备于所述薄膜晶体管层100表面；有机发光层109，制备于所述阳极层108表面，所述有机发光层109包括像素单元，一所述像素单元包括三个子像素，通过隔离柱115将不同所述子像素隔离开；阴极层110，制备于所述有机发光层109表面；薄膜封装层111，制备于所述阴极层110表面；以及网格金属线113，设置于所述薄膜封装层111上；保护盖板112，设置于所述薄膜封装层111上。其中，所述薄膜晶体管层100包括：第一栅绝缘层103、第二栅绝缘层104、间绝缘层105、平坦化层107以及开关单元106；所述开关单元106的源极与漏极位于所述平坦化层107，并通过位于所述间绝缘层105与所述第二栅绝缘层104的过孔连接到位于所述第一栅绝缘层103的有源层。所述网格金属线113可制备于所述薄膜封装层111的上表面或下表面，如果是柔性AMOLED显示面板，所述网格金属线113可以制作在所述AMOLED显示面板的所述薄膜封装层111上表面；所述网格金属线113分布于整个所述薄膜封装层111表面。所述网格金属线113图案化后形成至少两个指纹感应电极。所述网格金属线113的材料 为钛、铝、钼、铜、金、银中的一种或者一种以上的合金材料。
相邻两所述子像素间存在间隙，所述间隙处为所述隔离柱114，用以分隔不同所述子像素，所述网格金属线113对应所述隔离柱114的位置，宽度小于所述隔离柱114宽度，所述网格金属线113的覆盖范围在所述隔离柱114的覆盖范围内。所述阳极层108与所述阴极层110将所述有机发光层109夹于中间，所述阳极层108通过所述平坦化层107的过孔与所述开关单元106的所述漏极相连。
此外，所述网格金属线113还可制备于所述保护盖板112的内表面，且分布于整个所述保护盖板112表面；所述网格金属线113的宽度小于或等于所述子像素间的所述间隙的宽度。所述网格金属线113图案化后形成至少两个指纹感应电极，相邻两个所述指纹感应电极之间的间距与所述间隙的宽度相同。
如图 2 所示，本发明实施例提供的 指纹感应电极分布图 ， 网格金属线可以制作在柔性AMOLED显示面板的薄膜封装层201上表面或者下表面，所述网格金属线经图案化后形成呈阵列分布的指纹感应电极202，所述网格金属线图案化后形成至少两个所述指纹感应电极202，相邻两所述指纹感应电极202间存在间隙，彼此绝缘，一所述指纹感应电极202通过一感应电极线203连接到开关单元，所述指纹感应电极202分布于整个所述薄膜封装层201。
如图 3 所示，本发明实施例提供的 触控感应电极结构图 ， 有机发光层包括像素单元，一所述像素单元包括三个子像素301，相邻两所述子像素301间形成间隙，所述间隙用以界定不同所述子像素301，所述间隙处为隔离柱，网格金属线302制备于薄膜封装层的表面，所述网格金属线302正对于所述间隙的位置，所述网格金属线302图案化后形成彼此独立的指纹感应电极303，一所述指纹感应电极303连接一开关单元。相邻两所述指纹感应电极303之间的间隔宽度可以为所述间隙的宽度。所述网格金属线302的宽度小于或等于所述子像素间的所述间隙的宽度。所述网格金属线302为 高解析度的金属线，其解析度满足预定值，即满足指纹识别所需的解析度。 至少两个所述指纹感应电极303形成一个触控感应电极304，相邻两所述触控感应电极304间彼此绝缘，以实现对触摸点的位置确定， 本实施例中 触控显示面板与指纹识别模块实现一体化 ， 当指纹识别操作时，所述开关单元控制相应的所述指纹感应电极303导通，进行指纹电容感应，进行识别；在触控操作时，至少两个所述开关单元闭合形成一触控感应电极304，进行触控电容感应，以确定触摸位置。
如图 4 所示，本发明实施例提供的 指纹识别与触控感应的原理示意图 ，一 指纹感应电极406连接一感应电极线404，一所述感应电极线404连接一开关单元402， 在进行指纹识别时，由所述开关单元 402 控制单个独立的所述指 纹感应电极406 导通， 连接到指纹感应控制器403 进行指纹电容感应，进行指纹识别；当进行触控操作时，由所述开关单元 402 控制将至少两个相邻的所述指 纹感应电极406 连接导通形成一个大的触控感应电极 405 ，闭合形成所述触控感应电极 405 的至少两所述开关单元 402 全部闭合后，被导通的至少两所述 感应电极线404可连接到触控感应控制器401 ，进行触控电容感应，以确定触摸位置。所述指 纹感应电极406分布于整个薄膜封装层，所以 本实施例可实现 全屏指纹识别。
本实施例中的指纹识别及触控功能均采用自电容的感应方式，当手指触摸到所述触控显示屏时，手指的电容会叠加到所述触控显示屏屏体的电容上，使所述屏体电容增加，以此进行检测。 其中，优选的所述触控显示面板还包括一驱动芯片，所述驱动芯片用于对指纹识别与触控功能进行分时驱动，当所述触控显示面板处于指纹识别模式或触控模式时，所述驱动芯片为指纹识别或触控感应提供相应的驱动信号。 所述指纹感应电极 ，在指纹识别模式下用作识别 指纹 ，在触控模式下至少两个 所述指纹感应电极 用作触控感应电极，进行触控电容感应，所述 指纹感应电极 与所述触控感应电极共用一电极层且共用一驱动芯片，大大简化了触控显示面板的结构及制作工艺。
相较于现有的 指纹识别触控显示屏 ，本发明所提供的 指纹识别触控显示屏 ，通过在触控显示面板的 R/G/B 发光像素的间隙位置处设置整面的高分辨率金属网格，图案化形成独立的指纹感应电极并连接开关单元，将指纹识别功能及触控功能集成到触控显示面板上，因此可以使得 触控显示面板与指纹识别模块一体化 ，无需单独制作指纹识别模块，从而使得指纹识别更佳灵活便捷，并降低成本，精简了结构，提高了 显示装置整体性和屏占比，实现 全屏指纹识别。
综上所述，虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。

Claims (18)

  1. 一种全屏指纹识别触控显示屏，其包括：
    柔性基板；
    缓冲层，制备于所述柔性基板表面；
    薄膜晶体管层，制备于所述缓冲层表面；
    阳极层，制备于所述薄膜晶体管层表面；
    有机发光层，制备于所述阳极层表面，所述有机发光层包括像素单元，一所述像素单元包括三个子像素；
    阴极层，制备于所述有机发光层表面；
    薄膜封装层，制备于所述阴极层表面；以及
    网格金属线，设置于所述薄膜封装层上，所述网格金属线的材料 为钛、铝、钼、铜、金、银中的一种或者一种以上的合金材料 ；
    保护盖板，设置于所述薄膜封装层上；
    其中，相邻所述子像素间存在间隙，所述网格金属线正对于所述间隙的位置设置，所述网格金属线图案化后形成彼此独立的指纹感应电极，一所述指纹感应电极连接一开关单元。
  2. 根据权利要求1所述的全屏指纹识别触控显示屏，其中，所述网格金属线制备于所述薄膜封装层远离所述柔性基板一侧的表面，且分布于整个所述薄膜封装层表面。
  3. 根据权利要求1所述的全屏指纹识别触控显示屏，其中，所述网格金属线制备于所述保护盖板的内表面，且分布于整个所述保护盖板表面。
  4. 根据权利要求3所述的全屏指纹识别触控显示屏，其中，所述网格金属线图案化后形成至少两个指纹感应电极，相邻两个所述指纹感应电极之间的间距与所述间隙的宽度相同。
  5. 根据权利要求4所述的全屏指纹识别触控显示屏，其中，所述网格金属线的宽度小于或等于所述子像素间的所述间隙的宽度。
  6. 根据权利要求5所述的全屏指纹识别触控显示屏，其中，指纹识别操作时，所述开关单元控制相应的所述指纹感应电极导通，进行指纹电容感应，进行识别；在触控操作时，至少两个所述开关单元闭合形成一触控感应电极以确定触摸位置。
  7. 根据权利要求 6 所述的 全屏指纹识别触控显示屏 ，其中，所述 触控感应电极连接到触控感应控制器，所述指纹感应电极连接到指纹感应控制器。
  8. 根据权利要求 1 所述的 全屏指纹识别触控显示屏 ，其中， 所述网格金属线为 高解析度的金属线，其解析度满足预定值。
  9. 根据权利要求 1 所述的 全屏指纹识别触控显示屏 ，其中，所述 全屏指纹识别触控显示屏的 指纹识别及触控的感应方式为自电容式感应。
  10. 一种全屏指纹识别触控显示屏，其包括：
    柔性基板；
    缓冲层，制备于所述柔性基板表面；
    薄膜晶体管层，制备于所述缓冲层表面；
    阳极层，制备于所述薄膜晶体管层表面；
    有机发光层，制备于所述阳极层表面，所述有机发光层包括像素单元，一所述像素单元包括三个子像素；
    阴极层，制备于所述有机发光层表面；
    薄膜封装层，制备于所述阴极层表面；以及
    网格金属线，设置于所述薄膜封装层上；
    保护盖板，设置于所述薄膜封装层上；
    其中，相邻所述子像素间存在间隙，所述网格金属线正对于所述间隙的位置设置，所述网格金属线图案化后形成彼此独立的指纹感应电极，一所述指纹感应电极连接一开关单元。
  11. 根据权利要求10所述的全屏指纹识别触控显示屏，其中，所述网格金属线制备于所述薄膜封装层远离所述柔性基板一侧的表面，且分布于整个所述薄膜封装层表面。
  12. 根据权利要求10所述的全屏指纹识别触控显示屏，其中，所述网格金属线制备于所述保护盖板的内表面，且分布于整个所述保护盖板表面。
  13. 根据权利要求12所述的全屏指纹识别触控显示屏，其中，所述网格金属线图案化后形成至少两个指纹感应电极，相邻两个所述指纹感应电极之间的间距与所述间隙的宽度相同。
  14. 根据权利要求13所述的全屏指纹识别触控显示屏，其中，所述网格金属线的宽度小于或等于所述子像素间的所述间隙的宽度。
  15. 根据权利要求14所述的全屏指纹识别触控显示屏，其中，指纹识别操作时，所述开关单元控制相应的所述指纹感应电极导通，进行指纹电容感应，进行识别；在触控操作时，至少两个所述开关单元闭合形成一触控感应电极以确定触摸位置。
  16. 根据权利要求 15 所述的 全屏指纹识别触控显示屏 ，其中，所述 触控感应电极连接到触控感应控制器，所述指纹感应电极连接到指纹感应控制器。
  17. 根据权利要求 10 所述的 全屏指纹识别触控显示屏 ，其中， 所述网格金属线为 高解析度的金属线，其解析度满足预定值。
  18. 根据权利要求 10 所述的 全屏指纹识别触控显示屏 ，其中，所述 全屏指纹识别触控显示屏的 指纹识别及触控的感应方式为自电容式感应。
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