WO2017067041A1 - 一种触控显示装置 - Google Patents

一种触控显示装置 Download PDF

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Publication number
WO2017067041A1
WO2017067041A1 PCT/CN2015/095581 CN2015095581W WO2017067041A1 WO 2017067041 A1 WO2017067041 A1 WO 2017067041A1 CN 2015095581 W CN2015095581 W CN 2015095581W WO 2017067041 A1 WO2017067041 A1 WO 2017067041A1
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Prior art keywords
region
sensing
driving
electrode
floating
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PCT/CN2015/095581
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English (en)
French (fr)
Inventor
黄耀立
谢剑星
黄俊宏
蔡育徵
曹昌
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深圳市华星光电技术有限公司
武汉华星光电技术有限公司
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Priority to US14/916,564 priority Critical patent/US10048785B2/en
Publication of WO2017067041A1 publication Critical patent/WO2017067041A1/zh

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    • 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
    • G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
    • 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
    • G06F3/0445—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
    • 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
    • G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a touch display device.
  • capacitive touch screens are widely used in a variety of electronic products, such as: smart phones, tablets and so on.
  • the existing capacitive touch screen is divided into an external capacitive screen represented by G+G (Glass+Glass), GF (Glass-Film), GFF (Glass-Film-Film), OGS (One glass solution), etc.
  • On cell and In cell represent the embedded capacitive screen.
  • people are pursuing a more and more user-friendly experience, which has led to the situation of OGS, On cell, and In cell. Because of the unique advantages of In cell in the manufacturing process, it can be compared with OGS and On cell. It is lighter, lighter, and more responsive to customer needs. Therefore, the In cell touch display device is bound to become the mainstream of touch display devices.
  • FIG. 1 is a schematic plan view of a common electrode layer 100 of an In cell touch display device in the prior art.
  • the common electrode layer 100 is divided into a plurality of driving regions 101 and a plurality of sensing regions 102.
  • Each driving region 101 is provided with a corresponding driving region electrode
  • each sensing region 102 is provided with a corresponding sensing region electrode.
  • the driving regions 101 are arranged in a matrix, and the sensing regions 102 are disposed between the adjacent two columns of driving regions 101.
  • the drive region electrodes of the adjacent two drive regions 101 (referred to simply as drive region pairs) disposed in the same row are electrically connected by the drive leads 103. Due to the presence of the sensing region 102, it is necessary to route the driving leads 103 in a bridging manner.
  • FIG. 2 shows the manner in which the drive leads 103 shown in FIG. 1 are arranged.
  • a planarization layer 200 and a gate insulating layer 300 are sequentially disposed under the common electrode layer 100, wherein the planarization layer 200 is provided with data lines (because of the existence of the data lines, the planarization layer cannot be present) 200 is provided with a metal connection line 302 to avoid mutual interference between the metal connection line 302 and the data line) and a plurality of first via holes 201.
  • the gate insulating layer 300 is provided with a plurality of second via holes 301 and a plurality of metal connection lines. 302.
  • first vias 201 For each pair of driving regions, there are two first vias 201, two second vias 301 and a metal connecting line 302 corresponding thereto, wherein the driving region electrodes of one driving region 101 are sequentially located at their positive
  • the lower first via 201 and the second via 301 are electrically connected to one end of the metal connecting line 302, and the driving region electrodes of the other driving region 101 sequentially pass through the first via 201 and the second via directly below thereof.
  • 301 is electrically connected to the other end of the metal connection line 302.
  • the driving region electrodes and the metal connecting wires 302 filled in the first via 201 and the second via 301 together constitute a driving lead 103 for connecting the above-mentioned driving region pair.
  • the planarizing layer 200 is generally thick (for example, 2 ⁇ m, which is 20 times the thickness of the gate insulating layer 300), further increasing the process difficulty of boring, so
  • the In cell type touch display device has a complicated manufacturing process and a low yield.
  • Embodiments of the present invention provide a touch display device. Not only can the process difficulty of digging holes be effectively reduced, but also the production efficiency can be improved. Moreover, the influence of environmental changes on the touch precision can be reduced by providing an isolation region between the driving region and the floating region.
  • Embodiments of the present invention provide a touch display device including a sensing layer, an insulating layer, and a common electrode layer disposed in order from top to bottom, wherein:
  • the common electrode layer includes a plurality of driving regions arranged in a rectangular array and having driving region electrodes disposed therein, and a plurality of floating regions disposed between the adjacent two columns of the driving regions and having floating region electrodes therein Two adjacent floating zones are disposed at intervals and constitute a pair of floating zones, and an isolation zone disposed between the driving zone and the floating zone;
  • Suspension connecting lines are disposed on the sensing layer, and a point on the floating connecting line is electrically connected to a floating area electrode in a floating area of the pair of floating areas through a first via hole in the insulating layer Another point is electrically connected to the floating zone electrode in the other suspension zone of the pair of suspension zones through a second via in the insulating layer.
  • the common electrode layer further comprises a driving lead extending through the isolation region between two adjacent floating regions, wherein:
  • Drive zone electrodes in adjacent two of the drive zones located in the same row are electrically connected by the drive leads.
  • the driving region electrode and the floating region electrode are electrically connected to a common voltage output terminal in the driving circuit;
  • the driving region electrodes are electrically connected to a common voltage output terminal in the driving circuit, and the floating region electrodes are left blank.
  • the sensing layer further includes a plurality of first sensing regions that are in one-to-one correspondence with the floating region, and the first sensing region is disposed in a positive region corresponding to the first sensing region.
  • the sensing region electrode is disposed in the first sensing region.
  • the sensing region electrode in the first sensing region is one of a metal mesh, a transparent indium tin oxide electrode, and a carbon nanotube electrode.
  • the sensing layer further includes a plurality of second sensing regions corresponding to the driving region, and the second sensing region is disposed at a positive driving region corresponding to the second sensing region.
  • the sensing region electrode is disposed in the second sensing region, wherein:
  • the sensing region electrode in the second sensing region is electrically connected through a third via in the insulating layer and a driving region electrode in a driving region corresponding to the second sensing region.
  • the sensing region electrode in the second sensing region passes through at least two of the third via holes in the insulating layer and a driving region electrode in a driving region corresponding to the second sensing region Electrical connection.
  • the third via holes are arranged in a rectangular array.
  • the sensing region electrode in the second sensing region is one of a metal mesh, a transparent indium tin oxide electrode, and a carbon nanotube electrode.
  • a plurality of driving regions respectively provided with driving region electrodes arranged in a rectangular array are disposed on the common electrode layer, and a plurality of floating regions disposed between the adjacent two columns of the driving regions are disposed.
  • a suspension region of the electrode, two adjacent floating regions are spaced apart and constitute a pair of floating regions, and an isolation region disposed between the driving region and the floating region; and a suspension connecting line is disposed on the sensing layer
  • one point of the suspension connection line is electrically connected to the floating area electrode in one of the suspension zone pairs through the first via hole in the insulating layer, and the other point passes through the second one in the insulation layer
  • the via hole is electrically connected to the floating area electrode in the other suspension zone of the pair of suspension zones, thereby not only effectively reducing the process difficulty of digging holes, but also improving the production efficiency, and by providing an isolation zone between the driving zone and the suspension zone. Reduce the impact of environmental changes on touch accuracy.
  • FIG. 1 is a schematic plan view of a common electrode layer of an In cell type touch display device in the prior art
  • FIG. 2 is a layout manner of driving leads in the common electrode layer shown in FIG. 1;
  • FIG. 3 is a schematic structural diagram of a touch display device according to an embodiment of the present invention.
  • FIG. 4 is a schematic plan view of a common electrode layer according to an embodiment of the present invention.
  • FIG. 5 is a schematic plan view showing another common electrode layer according to an embodiment of the present invention.
  • FIG. 6 is a schematic plan view showing the sensing layer and the common electrode layer overlapped according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a touch display device according to an embodiment of the present invention.
  • the touch display device can be a liquid crystal display, a digital photo frame display, a mobile terminal display, and the like.
  • the touch display device in the embodiment of the invention includes:
  • the touch display device includes a common electrode layer 3 , an insulating layer 4 formed on the common electrode layer 3 , and a sensing layer 5 formed on the insulating layer 4 .
  • the touch display device further includes a thin film transistor array 1 , a dielectric layer 2 formed on the thin film transistor array 1 , a dielectric layer 6 formed on the sensing layer 5 , and pixels formed on the dielectric layer 6 .
  • FIG. 4 shows a plan view of the common electrode layer 3 shown in FIG.
  • the common electrode layer 3 includes a plurality of driving regions 31, a plurality of floating regions 32, a plurality of driving leads 33, and an isolation region (IOS) 34 disposed between the driving region 31 and the floating region 32.
  • FIG. 5 is a schematic structural view between the driving region 31, the floating region 32, and the isolation region 34 in the common electrode region, wherein, in the display phase, the isolation region 34 and the common voltage output terminal in the driving circuit are electrically Connect, The isolation region 34 is grounded during the touch phase.
  • each pair of suspension zones there is a drive lead 33 extending from the isolation zone between the pair of suspension zones (ie, the isolation zone between the two suspension zones 32 constituting the pair of suspension zones) to electrically connect to the same row Drive zone electrodes in adjacent two drive zones 31.
  • the driving region electrodes in the adjacent two driving regions 31 in the same column are disconnected from each other, and the driving region electrodes are electrically connected by the driving leads 33 of the common electrode layer 3, and the floating region electrodes are connected by suspension. Line electrical connection. It should be noted that by providing the isolation region 34 between the driving region 31 and the floating region 32, the influence of environmental changes on the touch precision can be reduced.
  • each drive region 31 is arranged in a rectangular array, and each drive region 31 is internally provided with drive zone electrodes, each of which is controlled by a common voltage output of a drive circuit (not shown in the drawings).
  • a plurality of floating zones 32 are disposed between adjacent columns of drive zones 31.
  • the floating regions 32 are also arranged in a rectangular array, and floating region electrodes are disposed in each of the floating regions 32.
  • Each of the floating zone electrodes is also controlled by the common voltage output of the drive circuit when displaying the image.
  • each adjacent two suspension zones 32 constitute a pair of suspension zones. As shown in FIG.
  • FIG. 6 a schematic plan view in which the sensing layer 5 and the common electrode layer 3 are overlapped, the driving leads and the isolation region leads are respectively turned on from the edge of the isolation region 34 and the edge of the driving region 31 by using a hole. Since the optical display problem is caused only by crossing the trace above the floating region 32, the lead wires are required to be traversed above the driving region 31 and the floating region 32, and the lead wires are respectively turned on in the corresponding driving region 31 and the floating region 32 below. .
  • first vias are disposed in the insulating layer 4, wherein the first vias are The number of pairs is equal to the number of pairs in the floating zone, and the number of second vias is also equal to the number of pairs of floating zones.
  • Each of the first vias uniquely corresponds to one pair of floating zones, and each of the second vias uniquely corresponds to a pair of floating zones.
  • a suspension connecting line is directly above each of the first via holes, and a floating area of the pair of floating areas corresponding thereto is disposed directly below.
  • a suspension connection line is traversed directly above each of the second via holes, and another suspension zone of the pair of suspension zones corresponding thereto is disposed directly below. Therefore, for each suspension connection line, a point on the suspension connection line is electrically connected to the suspension area electrode in a suspension area 32 of the suspension zone pair through the first via hole in the insulation layer 4, and the suspension connection line is further A point is electrically connected to the floating zone electrode in the other of the suspension zone by a second via in the insulating layer 4. It should be noted here that the suspension connection lines filled in the first via hole and the second via hole and the suspension connection line in the sensing layer 5 are combined. Suspended leads for connecting pairs of suspension zones. With the above structure, the electrical connection of the electrodes of the floating zone in the adjacent two floating zones 32 can be realized.
  • the driving region electrode and the sensing region electrode are respectively disposed in the common electrode layer 3 and the sensing layer 5, and only the edge layer 4 is isolated between the common electrode layer 3 and the sensing layer 5.
  • the drive region electrodes may be electrically connected between the drive leads 33 in the common electrode layer 3, and the suspension region electrodes may be electrically connected between the suspension layers distributed in the sensing layer 5 and the insulating layer 4.
  • the manufacturing process of the touch display device can be completed by using a conventional TFT process without modifying the existing machine configuration.
  • the In cell technology is used to integrate touch and display on the display panel, which improves production efficiency.
  • the display and touch time-sharing control modes are used to achieve perfect cooperation between the display function and the touch function of the touch display device.
  • the driving region electrodes in each driving region 31 and the floating region electrodes in each floating region 32 are electrically connected to a common voltage output terminal in the driving circuit.
  • the driving region electrodes in each driving region 31 remain electrically connected to the common voltage output terminal in the driving circuit, and at this time, the floating region electrodes in the floating region 32 are left blank.
  • the floating zone electrode can be vacant in the following manner: an electronic switch is connected in series between the floating zone electrode and the common voltage output of the drive circuit, the electronic switch being controlled by a controller.
  • the controller determines that the touch display device is currently in the display image state and the touch scan state: when in the display image state, the controller controls the electronic switch to be closed to electrically connect the floating region electrode to the common voltage output terminal of the driving circuit; When in the touch scanning state, the controller controls the electronic switch to open to disconnect the floating region electrode from the common voltage output terminal of the driving circuit, and the floating region electrode is blanked.
  • the sensing layer 5 further includes a plurality of first sensing regions corresponding to the floating region 32.
  • the first sensing region is disposed directly above the floating region corresponding thereto, and is disposed in the first sensing region.
  • the driving region electrodes in each driving region 31 remain electrically connected to the common voltage output terminal in the driving circuit, and at this time, the floating region electrodes in the floating region 32 are evacuated, and the floating region electrodes correspond to the same.
  • the sensing region electrodes are electrically coupled, thereby increasing signal inductance and increasing signal to noise ratio.
  • the sensing region electrode in the first sensing region is preferably a metal grid, transparent indium tin oxide One of the pole and carbon nanotube electrodes. When the sensing region electrode in the first sensing region is a metal mesh, the conductive resistance is lower, the sensing layer is thinner, and the strength and cost performance of the touch display device are improved.
  • the sensing layer 5 further includes a second sensing area on the basis of the above embodiments.
  • the number of the second sensing regions is equal to the number of the driving regions 31, and each of the second sensing regions uniquely corresponds to one driving region 31, and the second sensing region is disposed directly above the driving region 31 corresponding thereto .
  • a sensing region electrode is disposed in the second sensing region.
  • a third via hole (not shown in the drawing) for connecting the sensing region electrode and the corresponding driving region electrode is further provided in the insulating layer 4.
  • the sensing region electrode in the second sensing region is electrically connected to the driving region electrode in the driving region 31 corresponding thereto through the third via hole in the insulating layer 4.
  • the sensing region electrodes in the second sensing region are preferably one of a metal mesh, a transparent indium tin oxide electrode, and a carbon nanotube electrode.
  • the sensing region electrode in the second sensing region is a metal mesh, the conductive resistance is lower, the sensing layer is thinner, and the strength and cost performance of the touch display device are improved.
  • the setting of the sensing region electrodes in the second sensing region can improve the balance of the display pixels.
  • the driving region electrode is generally a transparent indium tin oxide electrode, and its resistance is large.
  • the difference in resistance of the driving region electrodes in the respective driving regions 31 is large, thereby causing imbalance of display pixels.
  • a resistor is connected in parallel at both ends of each driving region electrode, so that the total resistance of the driving region electrode and the sensing region electrode are connected in parallel.
  • the decrease causes the difference in the resistance (the total resistance after the parallel connection) of the driving region electrodes in the driving region 31 to be reduced, thereby contributing to an improvement in the balance of the display pixels.
  • the sensing region electrodes in the second sensing region are preferably metal meshes, since the resistance of the metal mesh is small, the problem of a decrease in yield due to excessive reduction in total resistance can be avoided.
  • the third via for connecting the sensing region electrode and the driving region electrode in the second sensing region may be one hole or a collection of a plurality of holes.
  • the sensing region electrodes in the second sensing region are electrically connected through the at least two third vias in the insulating layer 4 and the driving region electrodes in the driving region 31 corresponding thereto.
  • a plurality of driving regions respectively provided with driving region electrodes arranged in a rectangular array are disposed on the common electrode layer, and are disposed in a plurality of suspensions between the adjacent two columns of the driving regions.
  • a floating area of the area electrode two adjacent floating areas are spaced apart and constitute a pair of floating areas, and an isolation area disposed between the driving area and the floating area; and a suspension connecting line is disposed in the sensing layer,
  • a point of each of the suspension connecting wires is electrically connected to a floating region electrode in a suspension region of the pair of floating regions through a first via hole in the insulating layer, and another point passes through a first portion in the insulating layer
  • the two via holes are electrically connected to the floating region electrodes in the other suspension region of the pair of suspension regions, thereby not only effectively reducing the process difficulty of the hole digging, but also improving the production efficiency, and providing an isolation region between the driving region and the floating region. It can reduce the impact of environmental changes on touch accuracy.
  • the program may be stored in a computer readable storage medium, and the storage medium may include: Flash disk, read-only memory (English: Read-Only Memory, referred to as: ROM), random accessor (English: Random Access Memory, referred to as: RAM), disk or optical disk.
  • ROM Read-Only Memory
  • RAM Random Access Memory

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  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Input By Displaying (AREA)

Abstract

本发明实施例公开了一种触控显示装置，包括：公共电极层包括呈矩形阵列排布的多个内设有驱动区电极的驱动区，布设在相邻两列驱动区之间的多个内设有悬浮区电极的悬浮区，相邻两个悬浮区间隔设置并构成悬浮区对，以及布设在驱动区与悬浮区之间的隔离区；感测层上布设有悬浮连接线，且悬浮连接线的一点通过绝缘层中的第一过孔与悬浮区对中的一个悬浮区内的悬浮区电极电连接，另一点通过绝缘层中的第二过孔与悬浮区对中的另一个悬浮区内的悬浮区电极电连接。采用本发明实施例，不仅可以有效减少挖孔的工艺难度提高生产效率，而且通过在驱动区与悬浮区之间设置隔离区可以减低环境变化对触控精度的影响。

Description

一种触控显示装置
本发明要求2015年10月20日递交的发明名称为“一种触控显示装置”的申请号201510686201.6的在先申请优先权，上述在先申请的内容以引入的方式并入本文本中。
技术领域
本发明涉及显示技术领域，尤其涉及一种触控显示装置。
背景技术
随着智能电子产品的普及，电容式触摸屏被广泛应用于各种电子产品，例如：智能手机、平板电脑等。现有的电容式触摸屏分为以G+G(Glass+Glass)、GF(Glass-Film)、GFF(Glass-Film-Film)、OGS(One glass solution)等为代表的外挂式电容屏和以On cell、In cell为代表的嵌入式电容屏。近年来，人们追求越来越轻薄化的用户式体验，促使OGS、On cell、In cell三种技术并争的局面，而由于In cell在制造过程上的独特优势可以做到比OGS和On cell更轻薄、透光性更好和更能满足客户需求，因此In cell式触控显示装置势必成为触控显示装置的主流。
如图1所示，图1是现有技术中In cell式触控显示装置的公共电极层100的平面示意图。公共电极层100被划分为多个驱动区101和多个感测区102，各个驱动区101内布设有相应的驱动区电极，各个感测区102内布设有相应的感测区电极。具体地，驱动区101呈矩阵排布，并且相邻两列驱动区101之间设置感测区102。设置在同一行的相邻两个驱动区101(简称为驱动区对)的驱动区电极通过驱动引线103电连接。由于感测区102的存在，因此需要采用桥接的方式布设驱动引线103。
图2示出了图1中所示的驱动引线103的布设方式。如图2所示，在公共电极层100的下方顺次设置有平坦化层200和栅极绝缘层300，其中平坦化层200内布设有数据线(由于数据线的存在，不能在平坦化层200布设金属连接线302，以避免金属连接线302与数据线的彼此干扰)和多个第一过孔201，栅极绝缘层300内布设有多个第二过孔301和多条金属连接线 302。对于每个驱动区对而言，均有两个第一过孔201、两个第二过孔301和一条金属连接线302与其对应，其中一个驱动区101的驱动区电极顺次贯穿位于其正下方的第一过孔201和第二过孔301与金属连接线302的一端电连接，另一个驱动区101的驱动区电极顺次贯穿位于其正下方的第一过孔201和第二过孔301与金属连接线302的另一端电连接。这里需要指出的是，填充在第一过孔201和第二过孔301中的驱动区电极以及金属连接线302共同构成了用于连接上述驱动区对的驱动引线103。可见，为了布设驱动引线103，需要先后挖通两层结构，而平坦化层200一般较厚(例如2μm，是栅极绝缘层300厚度的20倍)，进一步增加了挖孔的工艺难度，因此现有技术中In cell式触控显示装置的制造过程复杂，良品率低。
发明内容
本发明实施例提供一种触控显示装置。不仅可以有效减少挖孔的工艺难度提高生产效率，而且通过在驱动区与悬浮区之间设置隔离区可以减低环境变化对触控精度的影响。
本发明实施例提供了一种触控显示装置，包括从上至下依次设置的感测层、绝缘层和公共电极层，其中：
所述公共电极层包括呈矩形阵列排布的多个内设有驱动区电极的驱动区，布设在相邻两列所述驱动区之间的多个内设有悬浮区电极的悬浮区，相邻两个所述悬浮区间隔设置并构成悬浮区对，以及布设在所述驱动区与所述悬浮区之间的隔离区；
所述感测层上布设有悬浮连接线，且所述悬浮连接线上的一点通过所述绝缘层中的第一过孔与所述悬浮区对中的一个悬浮区内的悬浮区电极电连接，另一点通过所述绝缘层中的第二过孔与所述悬浮区对中的另一个悬浮区内的悬浮区电极电连接。
其中，所述公共电极层还包括贯穿相邻两个所述悬浮区之间的所述隔离区的驱动引线，其中：
位于同一行的相邻两个所述驱动区内的驱动区电极通过所述驱动引线电连接。
其中，在显示图像时，所述驱动区电极和所述悬浮区电极均与驱动电路中的公共电压输出端电连接；或
在触控扫描时，所述驱动区电极与驱动电路中的公共电压输出端电连接，所述悬浮区电极置空。
其中，所述感测层还包括多个与所述悬浮区一一对应的第一感测区，所述第一感测区设置在与所述第一感测区相对应的悬浮区的正上方，所述第一感测区内设置有感测区电极。
其中，所述第一感测区内的感测区电极为金属网格、透明氧化铟锡电极和碳纳米管电极中的一种。
其中，所述感测层还包括多个与所述驱动区一一对应的第二感测区，所述第二感测区设置在与所述第二感测区相对应的驱动区的正上方，所述第二感测区内设置有感测区电极，其中：
所述第二感测区内的感测区电极通过所述绝缘层中的第三过孔和与所述第二感测区相对应的驱动区内的驱动区电极电连接。
其中，所述第二感测区内的感测区电极通过所述绝缘层中的至少两个所述第三过孔和与所述第二感测区相对应的驱动区内的驱动区电极电连接。
其中，所述第三过孔呈矩形阵列排布。
其中，所述第二感测区内的感测区电极为金属网格、透明氧化铟锡电极和碳纳米管电极中的一种。
实施本发明实施例，在公共电极层分别设置呈矩形阵列排布的多个内设有驱动区电极的驱动区，布设在相邻两列所述驱动区之间的多个内设有悬浮区电极的悬浮区，相邻两个所述悬浮区间隔设置并构成悬浮区对，以及布设在所述驱动区与所述悬浮区之间的隔离区；并且在感测层上布设有悬浮连接线，且所述悬浮连接线的一点通过所述绝缘层中的第一过孔与所述悬浮区对中的一个悬浮区内的悬浮区电极电连接，另一点通过所述绝缘层中的第二过孔与所述悬浮区对中的另一个悬浮区内的悬浮区电极电连接，从而不仅可以有效减少挖孔的工艺难度提高生产效率，而且通过在驱动区与悬浮区之间设置隔离区可以减低环境变化对触控精度的影响。
附图说明
为了更清楚地说明本发明实施例的技术方案，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。
图1是现有技术中In cell式触控显示装置的公共电极层的平面示意图；
图2是图1中所示的公共电极层中的驱动引线的布设方式；
图3是本发明实施例提出的一种触控显示装置的结构示意图；
图4是本发明实施例提供的一种公共电极层的平面示意图；
图5是本发明实施例提供的另一种公共电极层的平面示意图；
图6是本发明实施例提供的感测层和公共电极层重合后的平面示意图。
具体实施方式
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，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
请参考图3，图3是本发明实施例提出的一种触控显示装置的结构示意图。触控显示装置可以为液晶显示屏、数码相框显示屏以及移动终端显示屏等等。如图所示，本发明实施例中的触控显示装置包括：
如图3所示，该触控显示装置包括公共电极层3、形成于公共电极层3之上的绝缘层4和形成于绝缘层4之上的感测层5。除此之外，触控显示装置还包括薄膜晶体管阵列1、形成于薄膜晶体管阵列1上的介质层2、形成于感测层5之上的介质层6、形成于介质层6之上的像素电极层7。
具体地，图4示出了图3中所示的公共电极层3的平面示意图。如图4所示，公共电极层3包括多个驱动区31、多个悬浮区32、多条驱动引线33以及布设在驱动区31与悬浮区32之间的隔离区(IOS)34。如图5所示，图5是公共电极区中驱动区31、悬浮区32以及隔离区34之间的的结构示意图，其中，在显示阶段，隔离区34与驱动电路中的公共电压输出端电连接， 在触控阶段隔离区34接地。对于每个悬浮区对，均存在一条驱动引线33从该悬浮区对之间的隔离区(即构成悬浮区对的两个悬浮区32之间的隔离区)中贯穿，以电连接位于同一行的相邻的两个驱动区31内的驱动区电极。位于同一列的相邻的两个驱动区31内的驱动区电极之间彼此断开，驱动区电极之间通过公共电极层3的驱动引线33电连接，而悬浮区电极之间则通过悬浮连接线电连接。需要说明的是，通过在驱动区31与悬浮区32之间设置隔离区34，可以减低环境变化对触控精度的影响。
特别地，驱动区31呈矩形阵列排布，并且每个驱动区31内部设置有驱动区电极，各个驱动区电极分别受控于驱动电路(附图中未示出)的公共电压输出端。在相邻两列驱动区31之间设置多个悬浮区32。参照图2，与驱动区31类似，悬浮区32也呈矩形阵列排布，并且每个悬浮区32内设置有悬浮区电极。各个悬浮区电极在显示图像时也受控于驱动电路的公共电压输出端。在本发明实施例中，每个相邻的两个悬浮区32构成一个悬浮区对。如图6所示，感测层5和公共电极层3重合后的平面示意图，驱动引线与隔离区引线分别从隔离区34边缘、驱动区31边缘利用挖孔的形式导通。由于只在悬浮区32上方横跨走线会造成光学显示问题，因此在驱动区31与悬浮区32的上方都需要横跨引线，引线各自于下方对应的驱动区31、悬浮区32分别导通。
继续参考图3和图6，在绝缘层4设置多个第一过孔(附图中未示出)和多个第二过孔(附图中未示出)，其中第一过孔的个数与悬浮区对的个数相等，第二过孔的个数也与悬浮区对的个数相等。每个第一过孔唯一地对应一个悬浮区对，每个第二过孔唯一地对应一个悬浮区对。每个第一过孔的正上方横跨有悬浮连接线，正下方设置有与其相对应的悬浮区对中的一个悬浮区。每个第二过孔的正上方横跨有悬浮连接线，正下方设置有与其相对应的悬浮区对中的另一个悬浮区。因此，对于每条悬浮连接线而言，悬浮连接线上的一点通过绝缘层4中的第一过孔与悬浮区对中的一个悬浮区32内的悬浮区电极电连接，悬浮连接线的另一点通过绝缘层4中的第二过孔与所述悬浮区对中的另一个悬浮区内的悬浮区电极电连接。这里需要指出的是，填充在第一过孔和第二过孔中的悬浮连接线以及感测层5中的悬浮连接线共同构成 了用于连接悬浮区对的悬浮引线。采用上述结构，即可实现相邻两个悬浮区32内的悬浮区电极的电连接。
在本实施例中，分别将驱动区电极和感测区电极布设在公共电极层3和感测层5中，而公共电极层3和感测层5之间仅隔绝缘层4。驱动区电极之间可通过公共电极层3中的驱动引线33电连接，而悬浮区电极之间可通过分布在感测层5和绝缘层4中的悬浮引线电连接。在形成每条悬浮引线的过程中，仅需要在绝缘层4这一层中打孔，并且绝缘层4的厚度远小于平坦化层的厚度，从而有效地减少了挖孔的工艺难度，同时克服了因多层开孔导致的良品率下降的缺陷，简化了产品结构，提高了良品率。其次，采用传统的TFT工艺即可完成触控显示装置的制造过程，无需改造现有的机台配置。另外，采用In cell技术，将触控与显示集成于显示面板，提高了生产效率。
可选的，采用显示和触控分时控制的方式，实现触控显示装置显示功能和触控功能的完美配合。具体地，在显示图像时，各驱动区31内的驱动区电极和各悬浮区32内的悬浮区电极均与驱动电路中的公共电压输出端电连接。在触控扫描时，各驱动区31内的驱动区电极仍然保持与驱动电路中的公共电压输出端电连接，而此时悬浮区32内的悬浮区电极置空。在本发明一优选的实施例中，可采用以下方式将悬浮区电极置空：在悬浮区电极与驱动电路的公共电压输出端之间串联一电子开关，该电子开关受控于一控制器。由控制器判断触控显示装置当前处于显示图像状态和触控扫描状态：当处于显示图像状态时，控制器控制电子开关闭合，以使悬浮区电极与驱动电路的公共电压输出端电连接；当处于触控扫描状态时，控制器控制电子开关断开，以断开悬浮区电极与驱动电路的公共电压输出端之间的连接，悬浮区电极置空。
可选的，感测层5还包括多个与悬浮区32一一对应的第一感测区，第一感测区设置在与其相对应的悬浮区的正上方，第一感测区内设置有感测区电极。在触控扫描时，各驱动区31内的驱动区电极仍然保持与驱动电路中的公共电压输出端电连接，而此时悬浮区32内的悬浮区电极置空，悬浮区电极和与其相对应的感测区电极电耦合，因此可增大信号感应量，增加信噪比。特别地，第一感测区内的感测区电极优选为金属网格、透明氧化铟锡电 极和碳纳米管电极中的一种。当第一感测区内的感测区电极为金属网格时，可以使得导电电阻更低、感测层更薄、有利于提高触控显示装置的强度和性价比。
进一步地，感测层5在上述实施例的基础上还包括第二感测区。第二感测区的个数与驱动区31的个数相等，并且每个第二感测区唯一地对应一个驱动区31，第二感测区设置在与其相对应的驱动区31的正上方。另外，第二感测区内设置有感测区电极。相应地，在绝缘层4中还要设置用于连接感测区电极和相应的驱动区电极的第三过孔(附图中未示出)。第二感测区内的感测区电极通过绝缘层4中的第三过孔和与其相对应的驱动区31内的驱动区电极电连接。特别地，与第一感测区的感测区电极的选材类似，第二感测区内的感测区电极优选为金属网格、透明氧化铟锡电极和碳纳米管电极中的一种。当第二感测区内的感测区电极为金属网格时，可以使得导电电阻更低、感测层更薄、有利于提高触控显示装置的强度和性价比。
在本实施例中，第二感测区内的感测区电极的设置，可以改善显示像素的平衡。原因如下：在现有技术中，驱动区电极一般为透明氧化铟锡电极，其电阻较大。在形成驱动区电极的过程中，各个驱动区31内的驱动区电极的电阻的差异较大，从而造成显示像素的不平衡。应用本实施例，由于第二感测区内的感测区电极的设置，相当于在每个驱动区电极的两端并联了一个电阻，从而驱动区电极与感测区电极并联后的总电阻减小，进而使得驱动区31内的驱动区电极的电阻(并联后的总电阻)的差异减小，因此有助于改善显示像素的平衡。并且，当第二感测区内的感测区电极优选为金属网格时，由于金属网格的电阻较小，因此可以避免由于总电阻过度减小而导致的良品率下降的问题。
进一步地，用于连接第二感测区内的感测区电极与驱动区电极的第三过孔可以是一个孔，也可以是多个孔的集合。在本发明一优选的实施例中，第二感测区内的感测区电极通过绝缘层4中的至少两个第三过孔和与其相对应的驱动区31内的驱动区电极电连接。
在本发明实施例中，在公共电极层分别设置呈矩形阵列排布的多个内设有驱动区电极的驱动区，布设在相邻两列所述驱动区之间的多个内设有悬浮 区电极的悬浮区，相邻两个所述悬浮区间隔设置并构成悬浮区对，以及布设在所述驱动区与所述悬浮区之间的隔离区；并且在感测层设置悬浮连接线，且每条所述悬浮连接线的一点过所述绝缘层中的第一过孔与所述悬浮区对中的一个悬浮区内的悬浮区电极电连接，另一点通过所述绝缘层中的第二过孔与所述悬浮区对中的另一个悬浮区内的悬浮区电极电连接，从而不仅可以有效减少挖孔的工艺难度提高生产效率，而且通过在驱动区与悬浮区之间设置隔离区可以减低环境变化对触控精度的影响。
需要说明的是，对于前述的各个方法实施例，为了简单描述，故将其都表述为一系列的动作组合，但是本领域技术人员应该知悉，本发明并不受所描述的动作顺序的限制，因为依据本发明，某一些步骤可以采用其他顺序或者同时进行。其次，本领域技术人员也应该知悉，说明书中所描述的实施例均属于优选实施例，所涉及的动作和模块并不一定是本发明所必须的。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详细描述的部分，可以参见其他实施例的相关描述。
本领域普通技术人员可以理解上述实施例的各种方法中的全部或部分步骤是可以通过程序来指令相关的硬件来完成，该程序可以存储于一计算机可读存储介质中，存储介质可以包括：闪存盘、只读存储器(英文：Read-Only Memory，简称：ROM)、随机存取器(英文：Random Access Memory，简称：RAM)、磁盘或光盘等。
以上对本发明实施例所提供的内容下载方法及相关设备、系统进行了详细介绍，本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想；同时，对于本领域的一般技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本发明的限制。

Claims (13)

  1. 一种触控显示装置，其中，所述装置包括从上至下依次设置的感测层、绝缘层和公共电极层，其中：
    所述公共电极层包括呈矩形阵列排布的多个内设有驱动区电极的驱动区，布设在相邻两列所述驱动区之间的多个内设有悬浮区电极的悬浮区，相邻两个所述悬浮区间隔设置并构成悬浮区对，以及布设在所述驱动区与所述悬浮区之间的隔离区；
    所述感测层上布设有悬浮连接线，且所述悬浮连接线上的一点通过所述绝缘层中的第一过孔与所述悬浮区对中的一个悬浮区内的悬浮区电极电连接，另一点通过所述绝缘层中的第二过孔与所述悬浮区对中的另一个悬浮区内的悬浮区电极电连接。
  2. 如权利要求1所述的触控显示装置，其中，所述公共电极层还包括贯穿相邻两个所述悬浮区之间的所述隔离区的驱动引线，其中：
    位于同一行的相邻两个所述驱动区内的驱动区电极通过所述驱动引线电连接。
  3. 如权利要求1所述的触控显示装置，其中，
    在显示图像时，所述驱动区电极和所述悬浮区电极均与驱动电路中的公共电压输出端电连接；或
    在触控扫描时，所述驱动区电极与驱动电路中的公共电压输出端电连接，所述悬浮区电极置空。
  4. 如权利要求2所述的触控显示装置，其中，所述感测层还包括多个与所述悬浮区一一对应的第一感测区，所述第一感测区设置在与所述第一感测区相对应的悬浮区的正上方，所述第一感测区内设置有感测区电极。
  5. 如权利要求4所述的触控显示装置，其中，所述第一感测区内的感测区电极为金属网格、透明氧化铟锡电极和碳纳米管电极中的一种。
  6. 如权利要求1所述的触控显示装置，其中，所述感测层还包括多个与所述驱动区一一对应的第二感测区，所述第二感测区设置在与所述第二感测区相对应的驱动区的正上方，所述第二感测区内设置有感测区电极，其中：
    所述第二感测区内的感测区电极通过所述绝缘层中的第三过孔和与所述第二感测区相对应的驱动区内的驱动区电极电连接。
  7. 如权利要求2所述的触控显示装置，其中，所述感测层还包括多个与所述驱动区一一对应的第二感测区，所述第二感测区设置在与所述第二感测区相对应的驱动区的正上方，所述第二感测区内设置有感测区电极，其中：
    所述第二感测区内的感测区电极通过所述绝缘层中的第三过孔和与所述第二感测区相对应的驱动区内的驱动区电极电连接。
  8. 如权利要求3所述的触控显示装置，其中，所述感测层还包括多个与所述驱动区一一对应的第二感测区，所述第二感测区设置在与所述第二感测区相对应的驱动区的正上方，所述第二感测区内设置有感测区电极，其中：
    所述第二感测区内的感测区电极通过所述绝缘层中的第三过孔和与所述第二感测区相对应的驱动区内的驱动区电极电连接。
  9. 如权利要求4所述的触控显示装置，其中，所述感测层还包括多个与所述驱动区一一对应的第二感测区，所述第二感测区设置在与所述第二感测区相对应的驱动区的正上方，所述第二感测区内设置有感测区电极，其中：
    所述第二感测区内的感测区电极通过所述绝缘层中的第三过孔和与所述第二感测区相对应的驱动区内的驱动区电极电连接。
  10. 如权利要求5所述的触控显示装置，其中，所述感测层还包括多个与所述驱动区一一对应的第二感测区，所述第二感测区设置在与所述第二感测 区相对应的驱动区的正上方，所述第二感测区内设置有感测区电极，其中：
    所述第二感测区内的感测区电极通过所述绝缘层中的第三过孔和与所述第二感测区相对应的驱动区内的驱动区电极电连接。
  11. 如权利要求6所述的触控显示装置，其中，所述第二感测区内的感测区电极通过所述绝缘层中的至少两个所述第三过孔和与所述第二感测区相对应的驱动区内的驱动区电极电连接。
  12. 如权利要求7所述的触控显示装置，其中，所述第三过孔呈矩形阵列排布。
  13. 如权利要求6所述的触控显示装置，其中，所述第二感测区内的感测区电极为金属网格、透明氧化铟锡电极和碳纳米管电极中的一种。
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