WO2018176572A1 - 触控面板及触控显示装置 - Google Patents

触控面板及触控显示装置 Download PDF

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Publication number
WO2018176572A1
WO2018176572A1 PCT/CN2017/082820 CN2017082820W WO2018176572A1 WO 2018176572 A1 WO2018176572 A1 WO 2018176572A1 CN 2017082820 W CN2017082820 W CN 2017082820W WO 2018176572 A1 WO2018176572 A1 WO 2018176572A1
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WO
WIPO (PCT)
Prior art keywords
display area
touch
fingerprint identification
fingerprint
subunit
Prior art date
Application number
PCT/CN2017/082820
Other languages
English (en)
French (fr)
Inventor
黄耀立
张红森
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 US15/569,090 priority Critical patent/US10572708B2/en
Publication of WO2018176572A1 publication Critical patent/WO2018176572A1/zh

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—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
    • G06F3/04164—Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
    • 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
    • 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
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
    • G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
    • G06F3/04886—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures by partitioning the display area of the touch-screen or the surface of the digitising tablet into independently controllable areas, e.g. virtual keyboards or menus
    • 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

Definitions

  • the present invention relates to the field of mobile terminal management, and in particular, to a touch panel and a touch display device.
  • Fingerprint recognition is an authentication technique that compares multiple global features and local detail features between different fingerprint images according to different fingerprints with different texture characteristics. According to different fingerprint collection methods, fingerprint identification is mainly divided. There are three types of optical technology, capacitive (silicon) technology and ultrasonic (radio frequency) technology.
  • capacitive fingerprint recognition technology With the popularization of consumer products such as smart phones and smart wearable watches, capacitive fingerprint recognition technology has been widely used due to its small size.
  • the principle of capacitive fingerprint recognition technology is to use human fingers as an electrode of a capacitor, fingerprint sensor. (sensor) is another electrode, which uses the capacitance difference formed between the ridge and valley of the finger fingerprint relative to the smooth fingerprint sensor to form a grayscale image, and then matches the global and local details of the fingerprint by the fingerprint algorithm, thereby realizing the fingerprint recognition function. .
  • the fingerprint recognition technology is applied to the mobile phone, but the fingerprint recognition module is disposed at the Home button, the back side, or the side of the mobile phone.
  • This fingerprint recognition setting needs to occupy a part of the space of the mobile phone module, which is disadvantageous for Increasing the screen ratio of mobile phones is not conducive to the thin and light of mobile phones.
  • the fingerprint recognition function is integrated into the embedded touch panel, the fingerprint recognition area and the touch area are separately set to occupy the space, and the metal pull wire and the connection touch connected to the fingerprint recognition area are connected.
  • the metal wire of the sensing area is the same layer.
  • the touch sensing area and the fingerprint identification area share the metal wiring space, when the number of design fingerprint identification areas increases, or the fingerprint local feature recognition area increases, the cable may not be pulled. The problem that arises limits the use of fingerprint recognition integrated in the touch panel.
  • An object of the present invention is to provide a touch panel and a touch device, which are intended to solve the problem that the fingerprint recognition display area in the prior art is independent of the touch display area, and the occupied space is large, which is not conducive to improving the aperture ratio of the panel. .
  • An embodiment of the present invention provides a touch panel, including: a substrate, the substrate includes a plurality of touch units arranged in a matrix disposed in a display area, wherein the display area includes at least one fingerprint identification display area, The fingerprint recognition display area includes a plurality of touch units, and the touch unit in the fingerprint identification display area includes:
  • At least one fingerprint identification subunit the interval being set in the corresponding fingerprint identification display area for identifying the fingerprint
  • the plurality of touch recognition sub-units are arranged in a matrix in the corresponding fingerprint recognition display area for identifying the touch operation;
  • the fingerprint identification display area is an approximately square area with a side length of 8.5-9.5 mm;
  • the touch unit of the fingerprint identification display area includes a first fingerprint identification subunit, a second fingerprint identification subunit, a third fingerprint identification subunit, a fourth fingerprint identification subunit, and a fifth fingerprint identification subunit;
  • the first fingerprint identification subunit, the second fingerprint identification subunit, the third fingerprint identification subunit, and the fourth fingerprint identification subunit are respectively located at four corners of the corresponding display area of the touch unit;
  • the fifth fingerprint identification subunit is located at a central location of the corresponding display area of the touch unit.
  • the embodiment of the invention further provides a touch panel, comprising: a substrate, the substrate comprises a plurality of touch units arranged in a matrix arranged in a display area, wherein the display area comprises at least one fingerprint identification display area,
  • the fingerprint recognition display area includes a plurality of touch units, and the touch unit in the fingerprint identification display area includes:
  • At least one fingerprint identification subunit the interval being set in the corresponding fingerprint identification display area for identifying the fingerprint
  • the plurality of touch recognition sub-units are distributed in a matrix in the corresponding fingerprint recognition display area for identifying the touch operation.
  • the fingerprint recognition display area is an approximately square area having a side length of 8.5-9.5 mm.
  • the touch unit of the fingerprint identification display area includes a first fingerprint identification subunit, a second fingerprint identification subunit, a third fingerprint identification subunit, a fourth fingerprint identification subunit, and a fifth fingerprint identification subunit. ;
  • the first fingerprint identification subunit, the second fingerprint identification subunit, the third fingerprint identification subunit, and the fourth fingerprint identification subunit are respectively located at four corners of the corresponding display area of the touch unit;
  • the fifth fingerprint identification subunit is located at a central location of the corresponding display area of the touch unit.
  • each of the fingerprint recognition subunits comprises a plurality of fingerprint recognition electrodes, and the plurality of fingerprint recognition electrodes are spaced apart.
  • the touch panel further includes a touch recognition driving module connected to the plurality of touch recognition subunits, wherein the touch recognition subunit is connected to the touch recognition driving module through a first metal trace .
  • the touch panel further includes a fingerprint recognition driving module connected to the plurality of fingerprint identification subunits, wherein each of the fingerprint identification subunits is connected to the fingerprint identification driving module by a second metal routing, wherein The first metal trace and the second metal trace belong to different metal layers.
  • the plurality of fingerprint recognition electrodes are simultaneously a common electrode.
  • the substrate is a first array substrate
  • the first array substrate includes at least: a first insulating layer, a second metal trace disposed on the first insulating layer, and a second covering the second metal trace a passivation layer, a first common electrode layer disposed on the first passivation layer, a second passivation layer disposed on the first common electrode layer, and a first planar layer disposed on the second passivation layer a first pixel electrode disposed on the first planar layer;
  • the common electrode layer is connected to the second metal trace through a through hole of the first passivation layer
  • the first metal trace is connected to the common electrode layer through a through hole on the second passivation layer.
  • the substrate is a second array substrate
  • the array substrate includes at least: a second insulating layer, a second pixel electrode disposed on the second insulating layer, and a third blunt covering the second pixel electrode a first metal trace disposed on the third passivation layer, a fourth passivation layer disposed on the first metal trace, and a second common electrode layer disposed on the fourth passivation layer a second planar layer disposed on the second common electrode layer, and a second metal trace disposed on the second planar layer;
  • the second metal trace is connected to the second common electrode layer through a through hole on the second flat layer.
  • the second common electrode layer is connected to the first metal trace through a through hole on the fourth passivation layer.
  • the present invention further provides a touch display device, the touch display device includes a touch panel, and the touch panel includes: a substrate, the substrate includes a plurality of touch units arranged in a matrix in a display area, The display area includes at least one fingerprint identification display area, and the fingerprint recognition display area includes a plurality of touch units, and the touch unit in the fingerprint identification display area includes:
  • At least one fingerprint identification subunit the interval being set in the corresponding fingerprint identification display area for identifying the fingerprint
  • the plurality of touch recognition sub-units are distributed in a matrix in the corresponding fingerprint recognition display area for identifying the touch operation.
  • the fingerprint recognition display area is an approximately square area having a side length of 8.5-9.5 mm.
  • the touch unit of the fingerprint identification display area includes a first fingerprint identification subunit, a second fingerprint identification subunit, a third fingerprint identification subunit, a fourth fingerprint identification subunit, and a fifth fingerprint identification subunit. ;
  • the first fingerprint identification subunit, the second fingerprint identification subunit, the third fingerprint identification subunit, and the fourth fingerprint identification subunit are respectively located at four corners of the corresponding display area of the touch unit;
  • the fifth fingerprint identification subunit is located at a central location of the corresponding display area of the touch unit.
  • each of the fingerprint recognition subunits comprises a plurality of fingerprint recognition electrodes, and the plurality of fingerprint recognition electrodes are spaced apart.
  • the touch panel further includes a touch recognition driving module connected to the plurality of touch recognition subunits, wherein the touch recognition subunit is connected to the touch recognition driving module through a first metal trace .
  • the touch panel further includes a fingerprint recognition driving module connected to the plurality of fingerprint identification subunits, wherein each of the fingerprint identification subunits is connected to the fingerprint identification driving module by a second metal routing, wherein The first metal trace and the second metal trace belong to different metal layers.
  • the plurality of fingerprint recognition electrodes are simultaneously a common electrode.
  • the substrate is a first array substrate
  • the first array substrate includes at least: a first insulating layer, a second metal trace disposed on the first insulating layer, and a second covering the second metal trace a passivation layer, a first common electrode layer disposed on the first passivation layer, a second passivation layer disposed on the first common electrode layer, and a first planar layer disposed on the second passivation layer a first pixel electrode disposed on the first planar layer;
  • the common electrode layer is connected to the second metal trace through a through hole of the first passivation layer
  • the first metal trace is connected to the common electrode layer through a through hole on the second passivation layer.
  • the substrate is a second array substrate
  • the array substrate includes at least: a second insulating layer, a second pixel electrode disposed on the second insulating layer, and a third blunt covering the second pixel electrode a first metal trace disposed on the third passivation layer, a fourth passivation layer disposed on the first metal trace, and a second common electrode layer disposed on the fourth passivation layer a second planar layer disposed on the second common electrode layer, and a second metal trace disposed on the second planar layer;
  • the second metal trace is connected to the second common electrode layer through a through hole on the second flat layer.
  • the second common electrode layer is connected to the first metal trace through a through hole on the fourth passivation layer.
  • the fingerprint recognition function and the touch function are integrated in the fingerprint recognition display area provided in the touch panel, and the occupied area of the fingerprint recognition is reduced, and the aperture ratio of the display panel is improved to some extent.
  • An object of the present invention is to provide a touch panel and a touch device, which are intended to solve the problem that the fingerprint recognition display area in the prior art is independent of the touch display area, and the occupied space is large, which is not conducive to improving the aperture ratio of the panel. .
  • FIG. 1 is a partial structural schematic view of a touch panel of the present invention
  • FIG. 2 is a schematic structural diagram of a fingerprint identification area of a touch panel according to the present invention.
  • FIG. 3 is a schematic structural diagram of a fingerprint recognition electrode of a touch panel according to the present invention.
  • FIG. 4 is a partial structural diagram of an array substrate corresponding to a non-fingerprint identification display area of a first preferred embodiment of a touch panel of the present invention
  • FIG. 5 is a partial structural diagram of an array substrate corresponding to a fingerprint identification display area of a first preferred embodiment of a touch panel of the present invention
  • FIG. 6 is a partial structural diagram of an array substrate corresponding to a non-fingerprint identification display area of a second preferred embodiment of a touch panel of the present invention.
  • FIG. 7 is a partial structural diagram of an array substrate corresponding to a fingerprint identification display area according to a second preferred embodiment of the touch panel of the present invention.
  • the touch panel includes a substrate, and the substrate includes a plurality of touch units 1 disposed in a display area, and the plurality of touch units are arranged in a matrix.
  • the display area includes at least one fingerprint identification display area 2.
  • the fingerprint recognition display area 2 includes a plurality of consecutive touch units 1.
  • the number of the fingerprint identification display areas 2 may be set according to actual conditions, and may be 1, 2 or more. Generally, the sum of the areas of the fingerprint identification display area 2 is not larger than the area of the display area.
  • the area of the fingerprint recognition display area 2 is adapted to the surface area of the finger pad, preferably an approximately square area having a side length of 8.5-9.5 mm.
  • the touch unit 1 disposed in the fingerprint identification display area 2 includes: at least one fingerprint recognition sub-unit 11 and a plurality of touch recognition sub-units 12, wherein the at least one fingerprint recognition sub-unit 11 is spaced apart in a corresponding manner.
  • the fingerprint identification display area is configured to identify the fingerprint
  • the plurality of touch recognition sub-units 12 are matrix-distributed in the corresponding fingerprint identification display area for identifying the touch operation.
  • the fingerprint recognition and the touch recognition function are integrated in the fingerprint identification display area.
  • the technical solution of the embodiment brings a simplified structure and reduces the fingerprint recognition display.
  • the occupied area of the area ie, the fingerprint recognition display area is reduced), and the aperture ratio of the display panel is increased to some extent.
  • the fingerprint identification display area 2 is an approximately square area, as shown in FIG. 2 , which is a schematic structural diagram of the fingerprint identification display area 2 of the touch panel of the present invention.
  • the area 2 includes more than four touch units 1 .
  • the fingerprint recognition display area 2 includes four touch units 1 .
  • the touch unit 1 of the fingerprint identification display area 2 includes three or more fingerprint recognition sub-units 11 (having a side length of 100 ⁇ m to 300 ⁇ m).
  • the touch unit 1 includes five fingerprints.
  • the identification subunits are: a first fingerprint identification subunit, a second fingerprint identification subunit, a third fingerprint identification subunit, a fourth fingerprint identification subunit, and a fifth fingerprint identification subunit, wherein The first fingerprint identification subunit, the second fingerprint identification subunit, the third fingerprint identification subunit, and the fourth fingerprint identification subunit are respectively located at four corners of the corresponding display area of the touch unit 1, and the fifth fingerprint identification subunit is located at the touch Unit 1 corresponds to the center position of the display area.
  • the fingerprint recognition subunit 11 includes a plurality of fingerprint recognition electrodes 111 (the side length is 50 ⁇ m). -100 ⁇ m), the plurality of fingerprint recognition electrodes 111 are spaced apart, and the area of the single fingerprint recognition electrode 111 is several times, such as 3 times, 4 times or more, of the sub-pixel area of the touch panel. limit.
  • the touch recognition unit 1 includes a plurality of touch electrodes (not shown), and the plurality of touch electrodes are spaced apart.
  • the touch panel includes a driving chip 3, and the driving chip 3 includes a touch recognition driving module 31 and a fingerprint recognition driving module 32 (see FIG. 1).
  • the touch recognition sub-units 12 of the unit 1 and the fingerprint recognition display area 2 are respectively connected to the touch recognition drive module 31 through the first metal trace 4, and the at least one fingerprint recognition sub-unit 11 passes through the second metal trace 5 respectively.
  • the first metal trace 4 and the second metal trace 5 may be the same metal layer or may not be in the same metal layer, which is not limited herein, and is preferred in this embodiment. In the solution, the first metal trace 4 and the second metal trace 5 belong to different metal layers.
  • the substrate is a first array substrate, and preferably, the first array substrate is Bottom.
  • the first array substrate includes at least: a first insulating layer (not shown), a second metal trace 51 disposed on the first insulating layer, a first passivation layer (not shown) overlying the second metal trace 51, a first common electrode layer 6 disposed on the first passivation layer, and a second disposed on the first common electrode layer 6.
  • a passivation layer (not shown), a first metal trace 41 disposed on the second passivation layer, a first flat layer (not shown) disposed on the first metal trace 41, and disposed at a first pixel electrode 7 on the first planar layer, wherein:
  • the first common electrode layer 6 is connected to the second metal trace 51 through a through hole of the first passivation layer;
  • the first metal trace 41 is connected to the first common electrode layer 6 through a through hole on the second passivation layer.
  • the substrate is a second array substrate, and preferably, the second array substrate is a Top a Vcom (top-layer common electrode) structure, as shown in FIGS. 6 to 7, the second array substrate includes at least: a second insulating layer, a second pixel electrode 8 disposed on the second insulating layer, and a second pixel electrode 8 a third passivation layer (not shown), a first metal trace 42 disposed on the third passivation layer, a fourth passivation layer disposed on the first metal trace 42 (not shown), a second common electrode layer 9 disposed on the fourth passivation layer, a second planar layer (not shown) disposed on the second common electrode layer 9, and a second metal disposed on the second planar layer Trace 52, where:
  • the second metal trace 52 is connected to the second common electrode layer 9 through a through hole on the second flat layer.
  • the second common electrode layer 9 is connected to the first metal trace 42 through a through hole on the fourth passivation layer.
  • first metal traces 41 and the first metal traces 42 are all the first metal traces 4; the second metal traces 51 and the second metal traces 52 are all the second metal traces. 5, only different naming is used in different embodiments, the functions are the same, the labels are only for distinguishing in different embodiments.
  • the fingerprint recognition is integrated in the touch panel, so that the fingerprint recognition area has both a fingerprint recognition function and a touch function, and the fingerprint recognition and the touch recognition need not be separately set.
  • a fingerprint recognition electrode is disposed in the touch panel, and the touch electrode and the fingerprint recognition electrode are connected to the driving chip through different metal layers, and the touch sensing and the fingerprint recognition are separately controlled, and do not interfere with each other, thereby improving the accuracy of the sensing recognition.
  • the touch electrode and the fingerprint recognition electrode are simultaneously common electrodes, and no additional metal layer is needed, which simplifies the process and reduces the cost; and the fingerprint recognition is set in the display area, which does not occupy extra space, and realizes the thinness and narrowness of the panel. Chemical.
  • the fingerprint recognition driving module 32 detects the identification capacitance on the fingerprint recognition electrode 111 (due to When the finger is placed on the fingerprint recognition electrode 111, the finger forms a self-capacitance with the fingerprint recognition electrode 111, and the self-capacitance is the identification capacitance), and the identification capacitance is recognized (the fingerprint recognition electrode 111 and the ridge and valley of the finger fingerprint)
  • the identification capacitors are respectively formed, and the difference between the adjacent capacitors can form a multi-gray fingerprint image that can be recognized by the fingerprint algorithm, and then the local feature points of the finger fingerprint are detected, and then the identity or matching identification is performed, and the recognition result is performed according to the recognition result. The corresponding operation.
  • the fingerprint recognition area in addition to fingerprint recognition, also has a touch function, that is, the fingerprint recognition function is added without sacrificing the touch function of the area, and the practicality of the touch panel is improved.
  • the plurality of fingerprint recognition electrodes 111 and the touch electrodes are multiplexed into a common electrode, that is, the touch electrodes and the fingerprint recognition electrodes 111 are all part of the common electrode layer 6 (see FIG. 4).
  • the common electrode layer 6 is used as the touch electrode and the fingerprint recognition electrode, and no additional metal layer is needed, which simplifies the structure and reduces the cost.
  • the 5.5 inch FHD Full High
  • the four touch units 1 can be formed into a fingerprint recognition display area 2 of a square area, and the edge of the fingerprint recognition area 2
  • a fingerprint recognition sub-unit 11 is taken from each of the touch units 1 of the fingerprint recognition display area 2, and the fingerprint identification display area 2 has 20 fingerprint recognition sub-units 11, each of which has a length of about 9 mm.
  • Nine fingerprint recognition electrodes 111 are defined in the identification sub-unit 11, and the area of each fingerprint recognition electrode 111 is equal to the area of three sub-pixels.
  • Each of the fingerprint recognition sub-units 11 has a side length of about 63 ⁇ m, and each of the fingerprint recognition electrodes 111 has a side length of about 189 ⁇ m.
  • Each of the fingerprint recognition electrodes 111 is connected to the pattern recognition drive chip 32 via a second trace 5.
  • the present invention further provides a touch display device.
  • the touch display device includes the touch panel of the above embodiment.
  • the specific structure and working principle of the touch panel are substantially the same as those of the foregoing embodiment. Description of the embodiments, which are not described herein again.
  • the touch display device may be a touch display panel or a smart wearable display device with a fingerprint recognition function, which is not limited herein.
  • the fingerprint recognition is integrated in the touch panel, so that the fingerprint recognition area has both a fingerprint recognition function and a touch function, and the fingerprint recognition and the touch recognition need not be separately set.
  • a fingerprint recognition electrode is disposed in the touch panel, and the touch electrode and the fingerprint recognition electrode are connected to the driving chip through different metal layers, and the touch sensing and the fingerprint recognition are separately controlled, and do not interfere with each other, thereby improving the accuracy of the sensing recognition.
  • the touch electrode and the fingerprint recognition electrode are multiplexed into a common electrode, which eliminates the need for an additional metal layer, simplifies the process and reduces the cost, and sets the fingerprint recognition in the display area without occupying extra space, thereby realizing the thinning and narrowing of the panel. Edged.

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  • General Engineering & Computer Science (AREA)
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Abstract

本发明公开了一种触控面板，其包括：基板，包括设置在显示区域的呈矩阵分布的多个触控单元，显示区域包括至少一个指纹识别显示区域，指纹识别显示区域包括多个触控单元，在指纹识别显示区域的所述触控单元包括：至少一个指纹识别子单元，间隔设置在对应的指纹识别显示区域中；以及多个触控识别子单元，呈矩阵分布在对应的指纹识别显示区域中。

Description

触控面板及触控显示装置 技术领域
本发明涉及移动终端管理领域，特别是涉及一种触控面板及触控显示装置。
 背景技术
指纹识别是根据不同指纹具有不同纹理的特性，将不同指纹图像之间的多个全局特征和局部细节特征进行对比，从而确定身份的一种认证技术，按照指纹的采集方式不同，指纹识别主要分为光学技术、电容式（硅）技术和超声波（射频）技术三类。
随着智能手机、智能穿戴手表等消费品的普及，电容式指纹识别技术因其体积较小而得到了广泛的应用，电容式指纹识别技术的原理是将人的手指作为电容器的一个电极，指纹传感器（sensor）为另一个电极，利用手指指纹的脊和谷相对于平滑指纹传感器之间形成的电容差，形成灰度图像，然后通过指纹算法匹配指纹的全局及局部细节信息，从而实现指纹识别功能。
传统的技术中，将指纹识别技术应用在手机上，但指纹识别模块是设置于手机的Home键处、背面、或者侧边，这种指纹识别的设置需要占用手机模组的一部分空间，不利于提升手机的屏占比，不利于手机的轻薄化。
现有技术中，为了使手机轻薄化，将指纹识别功能集成到内嵌式触控面板之中，指纹识别区域及触控区域分开设置占用空间，且连接指纹识别区域的金属拉线与连接触控感应区域的金属拉线为同一层，但由于触控感应区域与指纹识别区域共用金属走线空间，当设计指纹识别区域个数增加，或者指纹局部特征识别区块增加时，可能会出现无法将拉线引出的问题，限制了指纹识别集成在触控面板的使用。
因此，现有技术存在缺陷，急需改进。
 技术问题
本发明的目的在于提供一种触控面板及触控装置，旨在解决现有技术中的指纹识别显示区域独立于触控显示区域设置，占用空间较大不利于提高面板的开口率的技术问题。
 技术解决方案
本发明实施例提供一种触控面板，其包括：基板，所述基板包括设置在显示区域的呈矩阵分布的多个触控单元，其中所述显示区域包括至少一个指纹识别显示区域，所述指纹识别显示区域包括多个触控单元，在所述指纹识别显示区域的所述触控单元包括：
至少一个指纹识别子单元，间隔设置在对应的指纹识别显示区域中，用于对指纹进行识别；以及
多个触控识别子单元，呈矩阵分布在对应的指纹识别显示区域中，用于对触控操作进行识别；
其中所述指纹识别显示区域为边长为8.5-9.5mm的近似方形区域；
所述指纹识别显示区域的所述触控单元包括第一指纹识别子单元、第二指纹识别子单元、第三指纹识别子单元、第四指纹识别子单元以及第五指纹识别子单元；
所述第一指纹识别子单元、所述第二指纹识别子单元、所述第三指纹识别子单元以及所述第四指纹识别子单元分别位于所述触控单元对应显示区域的四角；所述第五指纹识别子单元位于所述触控单元对应显示区域的中心位置。
本发明实施例还提供了一种触控面板，包括：基板，所述基板包括设置在显示区域的呈矩阵分布的多个触控单元，其中所述显示区域包括至少一个指纹识别显示区域，所述指纹识别显示区域包括多个触控单元，在所述指纹识别显示区域的所述触控单元包括：
至少一个指纹识别子单元，间隔设置在对应的指纹识别显示区域中，用于对指纹进行识别；以及
多个触控识别子单元，呈矩阵分布在对应的指纹识别显示区域中，用于对触控操作进行识别。
优选地，所述指纹识别显示区域为边长为8.5-9.5mm的近似方形区域。
优选地，所述指纹识别显示区域的所述触控单元包括第一指纹识别子单元、第二指纹识别子单元、第三指纹识别子单元、第四指纹识别子单元以及第五指纹识别子单元；
所述第一指纹识别子单元、所述第二指纹识别子单元、所述第三指纹识别子单元以及所述第四指纹识别子单元分别位于所述触控单元对应显示区域的四角；所述第五指纹识别子单元位于所述触控单元对应显示区域的中心位置。
优选地，每一所述指纹识别子单元包括多个指纹识别电极，所述多个指纹识别电极间隔设置。
优选地，所述触控面板还包括与所述多个触控识别子单元连接的触控识别驱动模块，所述触控识别子单元通过第一金属走线与所述触控识别驱动模块连接。
优选地，所述触控面板还包括与所述多个指纹识别子单元连接的指纹识别驱动模块，每一所述指纹识别子单元通过第二金属走线与所述指纹识别驱动模块连接，其中所述第一金属走线和所述第二金属走线属于不同金属层。
优选地，所述多个指纹识别电极同时为公共电极。
优选地，所述基板为第一阵列基板，所述第一阵列基板至少包括：第一绝缘层、设置在第一绝缘层上的第二金属走线、覆盖在第二金属走线上的第一钝化层、设置在第一钝化层上的第一公共电极层、设置在第一公共电极层上的第二钝化层、设置在所述第二钝化层上的第一平坦层、设置在所述第一平坦层上的第一像素电极；
在指纹识别显示区域，所述公共电极层穿过所述第一钝化层的通孔与所述第二金属走线连接；
在非指纹识别显示区域，所述第一金属走线穿过所述第二钝化层上的通孔与所述公共电极层连接。
优选地，所述基板为第二阵列基板，所述阵列基板至少包括：第二绝缘层、设置在所述第二绝缘层上的第二像素电极、覆盖所述第二像素电极的第三钝化层、设置在所述第三钝化层上的第一金属走线、设置在第一金属走线的第四钝化层、设置在所述第四钝化层上的第二公共电极层、设置在所述第二公共电极层上的第二平坦层、设置在所述第二平坦层上的第二金属走线；
在指纹识别显示区域，所述第二金属走线穿过所述第二平坦层上的通孔与所述第二公共电极层连接，
在非指纹识别显示区域，所述第二公共电极层穿过所述第四钝化层上的通孔与所述第一金属走线连接。
本发明还提供一种触控显示装置，所述触控显示装置包括触控面板，所述触控面板包括：基板，所述基板包括设置在显示区域的呈矩阵分布的多个触控单元，其中所述显示区域包括至少一个指纹识别显示区域，所述指纹识别显示区域包括多个触控单元，在所述指纹识别显示区域的所述触控单元包括：
至少一个指纹识别子单元，间隔设置在对应的指纹识别显示区域中，用于对指纹进行识别；以及
多个触控识别子单元，呈矩阵分布在对应的指纹识别显示区域中，用于对触控操作进行识别。
优选地，所述指纹识别显示区域为边长为8.5-9.5mm的近似方形区域。
优选地，所述指纹识别显示区域的所述触控单元包括第一指纹识别子单元、第二指纹识别子单元、第三指纹识别子单元、第四指纹识别子单元以及第五指纹识别子单元；
所述第一指纹识别子单元、所述第二指纹识别子单元、所述第三指纹识别子单元以及所述第四指纹识别子单元分别位于所述触控单元对应显示区域的四角；所述第五指纹识别子单元位于所述触控单元对应显示区域的中心位置。
优选地，每一所述指纹识别子单元包括多个指纹识别电极，所述多个指纹识别电极间隔设置。
优选地，所述触控面板还包括与所述多个触控识别子单元连接的触控识别驱动模块，所述触控识别子单元通过第一金属走线与所述触控识别驱动模块连接。
优选地，所述触控面板还包括与所述多个指纹识别子单元连接的指纹识别驱动模块，每一所述指纹识别子单元通过第二金属走线与所述指纹识别驱动模块连接，其中所述第一金属走线和所述第二金属走线属于不同金属层。
优选地，所述多个指纹识别电极同时为公共电极。
优选地，所述基板为第一阵列基板，所述第一阵列基板至少包括：第一绝缘层、设置在第一绝缘层上的第二金属走线、覆盖在第二金属走线上的第一钝化层、设置在第一钝化层上的第一公共电极层、设置在第一公共电极层上的第二钝化层、设置在所述第二钝化层上的第一平坦层、设置在所述第一平坦层上的第一像素电极；
在指纹识别显示区域，所述公共电极层穿过所述第一钝化层的通孔与所述第二金属走线连接；
在非指纹识别显示区域，所述第一金属走线穿过所述第二钝化层上的通孔与所述公共电极层连接。
优选地，所述基板为第二阵列基板，所述阵列基板至少包括：第二绝缘层、设置在所述第二绝缘层上的第二像素电极、覆盖所述第二像素电极的第三钝化层、设置在所述第三钝化层上的第一金属走线、设置在第一金属走线的第四钝化层、设置在所述第四钝化层上的第二公共电极层、设置在所述第二公共电极层上的第二平坦层、设置在所述第二平坦层上的第二金属走线；
在指纹识别显示区域，所述第二金属走线穿过所述第二平坦层上的通孔与所述第二公共电极层连接，
在非指纹识别显示区域，所述第二公共电极层穿过所述第四钝化层上的通孔与所述第一金属走线连接。
本发明中，在触控面板中设置的指纹识别显示区域中集成指纹识别功能及触控功能，减小指纹识别的占用面积，一定程度上提高显示面板的开口率。
 有益效果
本发明的目的在于提供一种触控面板及触控装置，旨在解决现有技术中的指纹识别显示区域独立于触控显示区域设置，占用空间较大不利于提高面板的开口率的技术问题。
 附图说明
为让本发明的上述内容能更明显易懂，下文特举优选实施例，并配合所附图式，作详细说明如下：
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，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。其中：
图1为本发明的一种触控面板的部分结构示意图；
图2为本发明的一种触控面板的指纹识别区域的结构示意图；
图3为本发明的一种触控面板的指纹识别电极的具体结构示意图；
图4为本发明的一种触控面板的第一优选实施例的非指纹识别显示区域对应的阵列基板的部分结构示意图；
图5为本发明的一种触控面板的第一优选实施例的指纹识别显示区域对应的阵列基板的部分结构示意图；
图6为本发明的一种触控面板的第二优选实施例的非指纹识别显示区域对应的阵列基板的部分结构示意图；
图7为本发明的一种触控面板的第二优选实施例的指纹识别显示区域对应的阵列基板的部分结构示意图。
 本发明的最佳实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性的劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
参照图1，为本发明的一种触控面板的部分结构示意图，该触控面板包括：基板、该基板包括设置在显示区域的多个触控单元1，该多个触控单元呈矩阵分布，该显示区域包括至少一个指纹识别显示区域2。该指纹识别显示区域2包括多个连续的触控单元1。该指纹识别显示区域2的数量可根据实际情况而设，优选地，可为1个、2个或者更多，通常情况下，该指纹识别显示区域2的面积之和不大于显示区域的面积，在本实施例的一个优选方案中，该指纹识别显示区域2的面积与手指指腹表面积适配，优选为边长为8.5-9.5mm的近似方形区域。
具体地，设置在该指纹识别显示区域2的触控单元1包括：至少一个指纹识别子单元11及多个触控识别子单元12，其中，该至少一个指纹识别子单元11间隔设置在对应的指纹识别显示区域，用于对指纹进行识别，该多个触控识别子单元12矩阵分布在对应的指纹识别显示区域中，用于对触控操作进行识别。本实施例中，在指纹识别显示区域集成了指纹识别及触控识别功能，相比于需要单独设置触控及指纹识别区域，本实施例的技术方案带来了简化结构，减小指纹识别显示区域的占用面积（即指纹识别显示区域变小化），一定程度上提高显示面板的开口率。
在本实施例的一个优选方案中，该指纹识别显示区域2呈近似方形区域，如图2所示，为本发明的一种触控面板的指纹识别显示区域2的结构示意图，该指纹识别显示区域2包括4个以上触控单元1，优选地，该指纹识别显示区域2包括四个触控单元1。
进一步地，该指纹识别显示区域2的触控单元1包括3个以上指纹识别子单元11（边长为100μm-300μm），优选地，如图2所示，该触控单元1包括5个指纹识别子单元（图中未示），分别为：第一指纹识别子单元、第二指纹识别子单元、第三指纹识别子单元、第四指纹识别子单元及第五指纹识别子单元，其中，第一指纹识别子单元、第二指纹识别子单元、第三指纹识别子单元、第四指纹识别子单元分别位于该触控单元1对应显示区域的四角，第五指纹识别子单元位于该触控单元1对应显示区域的中心位置。
在本实施例的一个优选方案中，如图3所示，该指纹识别子单元11包括多个指纹识别电极111（边长为50μm -100μm），该多个指纹识别电极111间隔设置，且单个指纹识别电极111的面积为触控面板的子像素面积的若干倍，例如3倍、4倍或者更多倍，此处对此不作限制。进一步地，该触控识别单元1包括多个触控电极（图中未示），该多个触控电极间隔设置。
在本实施例的一个优选方案中，该触控面板包括驱动芯片3，该驱动芯片3包括触控识别驱动模块31及指纹识别驱动模块32（见图1），非指纹识别显示区域的触控单元1及指纹识别显示区域2的触控识别子单元12均分别通过第一金属走线4与该触控识别驱动模块31连接，该至少一个指纹识别子单元11分别通过第二金属走线5与该指纹识别驱动模块32连接，该第一金属走线4与第二金属走线5可为同一金属层，也可不在同一金属层，此处对此不作限制，在本实施例的一个优选方案中，该第一金属走线4与第二金属走线5属于不同金属层。
在本实施例的一个优选方案中，该基板为第一阵列基板，优选地，该第一阵列基板为Bottom Vcom（底层公共电极）结构，如图4及5所示，该第一阵列基板至少包括：第一绝缘层（图中未标示）、设置在第一绝缘层上的第二金属走线51、覆盖在第二金属走线51上的第一钝化层（图中未标示）、设置在第一钝化层上的第一公共电极层6、设置在第一公共电极层6上的第二钝化层（图中未标示），设置在第二钝化层上的第一金属走线41、设置在所述第一金属走线41的第一平坦层（图中未标示）、设置在所述第一平坦层上的第一像素电极7，其中：
在指纹识别显示区域，该第一公共电极层6穿过该第一钝化层的通孔与该第二金属走线51连接；
在非指纹识别显示区域，该第一金属走线41穿过该第二钝化层上的通孔与该第一公共电极层6连接。
在本实施例的一个优选方案中，该基板为第二阵列基板，优选地，该第二阵列基板为Top Vcom（顶层公共电极）结构，如图6至7所示，该第二阵列基板至少包括：第二绝缘层、设置在该第二绝缘层上的第二像素电极8、覆盖第二像素电极8的第三钝化层（图中未标示）、设置在第三钝化层上的第一金属走线42、设置在第一金属走线42的第四钝化层（图中未标示）、设置在该第四钝化层上的第二公共电极层9、设置在第二公共电极层9上的第二平坦层（图中未标示）、设置在该第二平坦层上的第二金属走线52，其中：
在指纹识别显示区域，该第二金属走线52穿过该第二平坦层上的通孔与该第二公共电极层9连接，
在非指纹识别显示区域，该第二公共电极层9穿过该第四钝化层上的通孔与该第一金属走线42连接。
使用不同层的金属走线传输指纹识别信号以及触控感应信号，可以较好的避免传输指纹识别信号与触控感应信号走线的相互干扰。
需要说明的是，上述第一金属走线41及第一金属走线42均为上述第一金属走线4；第二金属走线51及第二金属走线52均为上述第二金属走线5，只是在不同的实施例中采用了不同的命名，其作用都是一样的，标号只是为了在不同实施例中作区别。
本实施例中，在触控面板中集成指纹识别，使得指纹识别区域既有指纹识别功能，又有触控功能，无需将指纹识别与触控识别单独设置，
可节省面板制作的复杂度，简化结构，提升产品竞争力。
此外，在触控面板中设置指纹识别电极，且触控电极与指纹识别电极通过不同金属层连接至驱动芯片，触控感应与指纹识别单独控制，不会互相干扰，提高感应识别准确度。
再者，将触控电极及指纹识别电极同时为公共电极，无需额外设置金属层，简化制程，降低成本；而将指纹识别设置在显示区，不占用额外空间，实现面板的轻薄化及窄边化。
为了便于理解，下面详细描述本实施例的触控面板的部分实现过程：具体地，当手指按压该指纹识别电极111时，该指纹识别驱动模块32检测到指纹识别电极111上的识别电容（由于手指放在指纹识别电极111时，手指与该指纹识别电极111形成自电容，该自电容即为该识别电容），并对所述识别电容进行识别（指纹识别电极111与手指指纹的脊、谷之间分别形成识别电容，由相邻电容的差值可形成能被指纹算法识别的多灰阶指纹图像，进而检测出手指指纹的局部特征点，然后进行身份或者匹配识别），根据识别结果执行相应的操作。
本发明中，指纹识别区域除了可进行指纹识别，还具有触控功能，即增加指纹识别功能的同时没有牺牲该区域的触控功能，提高触控面板的实用性。
在本实施例的一个优选方案中，该多个指纹识别电极111及触控电极均复用为公共电极，即上述触控电极、指纹识别电极111均为公共电极层6的一部分（见图4至7），以公共电极层6作为触控电极及指纹识别电极，无需额外设置金属层，简化结构，降低成本。
为了便于理解，以5.5寸的FHD（Full High Definition，全高清）内触控面板为例，触控单元1的边长为4.5mm时，可以将四个触控单元1组成近似方形区域的指纹识别显示区域2，该指纹识别区域2的边长约为9mm,从每一个该指纹识别显示区域2的触控单元1中各取5个指纹识别子单元11，则该该指纹识别显示区域2有20个指纹识别子单元11，每个指纹识别子单元11中划分出9个指纹识别电极111，每个指纹识别电极111的面积与三个子像素面积相等。每个指纹识别子单元11的边长约为63μm，每个指纹识别电极111的边长约为189μm，每个指纹识别电极111均通过第二走线5与纹识别驱动芯片32连接。
本发明还提供一种触控显示装置，该触控显示装置包括上述实施例所述的触控面板，该触控面板的具体结构及工作原理与上述实施例的描述基本一致，具体可参考上述实施例的描述，此处不再赘述。
具体地，该触控显示装置可为触控显示面板、还可以为具有指纹识别功能的智能可穿戴显示装置，此处对此不作限制。
本发明中，在触控面板中集成指纹识别，使得指纹识别区域既有指纹识别功能，又有触控功能，无需将指纹识别与触控识别单独设置，
可节省面板制作的复杂度，简化结构，提升产品竞争力。
此外，在触控面板中设置指纹识别电极，且触控电极与指纹识别电极通过不同金属层连接至驱动芯片，触控感应与指纹识别单独控制，不会互相干扰，提高感应识别准确度。
再者，将触控电极及指纹识别电极复用为公共电极，无需额外设置金属层，简化制程，降低成本；而将指纹识别设置在显示区，不占用额外空间，实现面板的轻薄化及窄边化。
以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (19)

  1. 一种触控面板，其包括：基板，所述基板包括设置在显示区域的呈矩阵分布的多个触控单元，其中所述显示区域包括至少一个指纹识别显示区域，所述指纹识别显示区域包括多个触控单元，在所述指纹识别显示区域的所述触控单元包括：
    至少一个指纹识别子单元，间隔设置在对应的指纹识别显示区域中，用于对指纹进行识别；以及
    多个触控识别子单元，呈矩阵分布在对应的指纹识别显示区域中，用于对触控操作进行识别；
    其中所述指纹识别显示区域为边长为8.5-9.5mm的近似方形区域；
    所述指纹识别显示区域的所述触控单元包括第一指纹识别子单元、第二指纹识别子单元、第三指纹识别子单元、第四指纹识别子单元以及第五指纹识别子单元；
    所述第一指纹识别子单元、所述第二指纹识别子单元、所述第三指纹识别子单元以及所述第四指纹识别子单元分别位于所述触控单元对应显示区域的四角；所述第五指纹识别子单元位于所述触控单元对应显示区域的中心位置。
  2. 一种触控面板，其包括：基板，所述基板包括设置在显示区域的呈矩阵分布的多个触控单元，其中所述显示区域包括至少一个指纹识别显示区域，所述指纹识别显示区域包括多个触控单元，在所述指纹识别显示区域的所述触控单元包括：
    至少一个指纹识别子单元，间隔设置在对应的指纹识别显示区域中，用于对指纹进行识别；以及
    多个触控识别子单元，呈矩阵分布在对应的指纹识别显示区域中，用于对触控操作进行识别。
  3. 根据权利要求2所述的触控面板，其中所述指纹识别显示区域为边长为8.5-9.5mm的近似方形区域。
  4. 根据权利要求2所述的触控面板，其中所述指纹识别显示区域的所述触控单元包括第一指纹识别子单元、第二指纹识别子单元、第三指纹识别子单元、第四指纹识别子单元以及第五指纹识别子单元；
    所述第一指纹识别子单元、所述第二指纹识别子单元、所述第三指纹识别子单元以及所述第四指纹识别子单元分别位于所述触控单元对应显示区域的四角；所述第五指纹识别子单元位于所述触控单元对应显示区域的中心位置。
  5. 根据权利要求2所述的触控面板，其中每一所述指纹识别子单元包括多个指纹识别电极，所述多个指纹识别电极间隔设置。
  6. 根据权利要求5所述的触控面板，其中所述触控面板还包括与所述多个触控识别子单元连接的触控识别驱动模块，所述触控识别子单元通过第一金属走线与所述触控识别驱动模块连接。
  7. 根据权利要求6所述的触控面板，其中所述触控面板还包括与所述多个指纹识别子单元连接的指纹识别驱动模块，每一所述指纹识别子单元通过第二金属走线与所述指纹识别驱动模块连接，其中所述第一金属走线和所述第二金属走线属于不同金属层。
  8. 根据权利要求7所述的触控面板，其中所述多个指纹识别电极同时为公共电极。
  9. 根据权利要求8所述的触控面板，其中所述基板为第一阵列基板，所述第一阵列基板至少包括：第一绝缘层、设置在第一绝缘层上的第二金属走线、覆盖在第二金属走线上的第一钝化层、设置在第一钝化层上的第一公共电极层、设置在第一公共电极层上的第二钝化层、设置在所述第二钝化层上的第一平坦层、设置在所述第一平坦层上的第一像素电极；
    在指纹识别显示区域，所述公共电极层穿过所述第一钝化层的通孔与所述第二金属走线连接；
    在非指纹识别显示区域，所述第一金属走线穿过所述第二钝化层上的通孔与所述公共电极层连接。
  10. 根据权利要求8所述的触控面板，其中所述基板为第二阵列基板，所述阵列基板至少包括：第二绝缘层、设置在所述第二绝缘层上的第二像素电极、覆盖所述第二像素电极的第三钝化层、设置在所述第三钝化层上的第一金属走线、设置在第一金属走线的第四钝化层、设置在所述第四钝化层上的第二公共电极层、设置在所述第二公共电极层上的第二平坦层、设置在所述第二平坦层上的第二金属走线；
    在指纹识别显示区域，所述第二金属走线穿过所述第二平坦层上的通孔与所述第二公共电极层连接，
    在非指纹识别显示区域，所述第二公共电极层穿过所述第四钝化层上的通孔与所述第一金属走线连接。
  11. 一种触控显示装置，其包括触控面板，所述触控面板包括：基板，所述基板包括设置在显示区域的呈矩阵分布的多个触控单元，其中所述显示区域包括至少一个指纹识别显示区域，所述指纹识别显示区域包括多个触控单元，在所述指纹识别显示区域的所述触控单元包括：
    至少一个指纹识别子单元，间隔设置在对应的指纹识别显示区域中，用于对指纹进行识别；以及
    多个触控识别子单元，呈矩阵分布在对应的指纹识别显示区域中，用于对触控操作进行识别。
  12. 根据权利要求11所述的触控显示装置，其中所述指纹识别显示区域为边长为8.5-9.5mm的近似方形区域。
  13. 根据权利要求11所述的触控显示装置，其中所述指纹识别显示区域的所述触控单元包括第一指纹识别子单元、第二指纹识别子单元、第三指纹识别子单元、第四指纹识别子单元以及第五指纹识别子单元；
    所述第一指纹识别子单元、所述第二指纹识别子单元、所述第三指纹识别子单元以及所述第四指纹识别子单元分别位于所述触控单元对应显示区域的四角；所述第五指纹识别子单元位于所述触控单元对应显示区域的中心位置。
  14. 根据权利要求11所述的触控显示装置，其中每一所述指纹识别子单元包括多个指纹识别电极，所述多个指纹识别电极间隔设置。
  15. 根据权利要求14所述的触控显示装置，其中所述触控面板还包括与所述多个触控识别子单元连接的触控识别驱动模块，所述触控识别子单元通过第一金属走线与所述触控识别驱动模块连接。
  16. 根据权利要求15所述的触控显示装置，其中所述触控面板还包括与所述多个指纹识别子单元连接的指纹识别驱动模块，每一所述指纹识别子单元通过第二金属走线与所述指纹识别驱动模块连接，其中所述第一金属走线和所述第二金属走线属于不同金属层。
  17. 根据权利要求16所述的触控显示装置，其中所述多个指纹识别电极同时为公共电极。
  18. 根据权利要求17所述的触控显示装置，其中所述基板为第一阵列基板，所述第一阵列基板至少包括：第一绝缘层、设置在第一绝缘层上的第二金属走线、覆盖在第二金属走线上的第一钝化层、设置在第一钝化层上的第一公共电极层、设置在第一公共电极层上的第二钝化层、设置在所述第二钝化层上的第一平坦层、设置在所述第一平坦层上的第一像素电极；
    在指纹识别显示区域，所述公共电极层穿过所述第一钝化层的通孔与所述第二金属走线连接；
    在非指纹识别显示区域，所述第一金属走线穿过所述第二钝化层上的通孔与所述公共电极层连接。
  19. 根据权利要求17所述的触控显示装置，其中所述基板为第二阵列基板，所述阵列基板至少包括：第二绝缘层、设置在所述第二绝缘层上的第二像素电极、覆盖所述第二像素电极的第三钝化层、设置在所述第三钝化层上的第一金属走线、设置在第一金属走线的第四钝化层、设置在所述第四钝化层上的第二公共电极层、设置在所述第二公共电极层上的第二平坦层、设置在所述第二平坦层上的第二金属走线；
    在指纹识别显示区域，所述第二金属走线穿过所述第二平坦层上的通孔与所述第二公共电极层连接，
    在非指纹识别显示区域，所述第二公共电极层穿过所述第四钝化层上的通孔与所述第一金属走线连接。
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CN104808886A (zh) * 2015-05-11 2015-07-29 京东方科技集团股份有限公司 自电容式指纹识别触摸屏及其制备方法、显示装置
CN104850292A (zh) * 2015-06-01 2015-08-19 京东方科技集团股份有限公司 一种内嵌式触摸屏、其驱动方法及显示装置
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CN109828696B (zh) * 2019-01-09 2022-09-13 广州国显科技有限公司 显示面板以及显示屏
CN109976577A (zh) * 2019-03-22 2019-07-05 江西合力泰科技有限公司 一种带指纹识别触显功能的模组
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CN111582096A (zh) * 2020-04-28 2020-08-25 上海天马微电子有限公司 指纹识别结构及装置、显示装置
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CN114063834A (zh) * 2021-11-05 2022-02-18 武汉华星光电半导体显示技术有限公司 触控显示面板及其触控驱动方法
CN114265516A (zh) * 2021-12-17 2022-04-01 武汉华星光电半导体显示技术有限公司 一种触控显示面板及显示装置
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