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WO2014153862A1 - 电容内嵌式触摸屏和显示装置 - Google Patents

电容内嵌式触摸屏和显示装置 Download PDF

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Publication number
WO2014153862A1
WO2014153862A1 PCT/CN2013/077493 CN2013077493W WO2014153862A1 WO 2014153862 A1 WO2014153862 A1 WO 2014153862A1 CN 2013077493 W CN2013077493 W CN 2013077493W WO 2014153862 A1 WO2014153862 A1 WO 2014153862A1
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WO
WIPO (PCT)
Prior art keywords
touch
electrodes
sub
line
signal connection
Prior art date
Application number
PCT/CN2013/077493
Other languages
English (en)
French (fr)
Inventor
徐宇博
木素真
胡明
林炳仟
Original Assignee
合肥京东方光电科技有限公司
京东方科技集团股份有限公司
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 合肥京东方光电科技有限公司, 京东方科技集团股份有限公司 filed Critical 合肥京东方光电科技有限公司
Priority to US14/348,723 priority Critical patent/US9665203B2/en
Priority to JP2016503515A priority patent/JP6254250B2/ja
Priority to KR1020147010718A priority patent/KR101641804B1/ko
Priority to EP13840131.0A priority patent/EP2980684A4/en
Publication of WO2014153862A1 publication Critical patent/WO2014153862A1/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
    • G06F3/044—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
    • 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
    • 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
    • G06F3/0448—Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality

Definitions

  • the invention relates to a capacitive in-cell touch screen and a display device. Background technique
  • the touch screen is an input device that allows a user to directly input a user's instruction by selecting an instruction content displayed on a screen of an image display or the like by hand or an object.
  • the touch screen detects the touch point and drives the liquid crystal display device according to the command indicated by the selected icon to achieve a specific display.
  • the existing touch screens are mainly classified into an external type and an in-line type depending on the position of the liquid crystal display.
  • the in-cell touch screen is disposed inside the panel of the liquid crystal display device, which can greatly reduce the thickness of the liquid crystal display product.
  • the touch function is realized by adding one or two transparent electrodes in the liquid crystal cell.
  • the structure of the in-cell touch panel is complicated in process and affects the transmittance of the liquid crystal display. Summary of the invention
  • Embodiments of the present invention provide a capacitive in-cell touch panel and a display device capable of implementing a touch function without adding a new film layer.
  • Embodiments of the present invention provide a capacitive in-cell touch panel, the touch panel includes an array substrate, and the array substrate is provided with a gate line, a data line, and a common electrode layer.
  • the common electrode layer includes a plurality of touch driving electrode units and a touch sensing electrode unit that are insulated from each other.
  • the touch driving electrode unit includes a plurality of touch driving sub-electrodes
  • the touch sensing electrode unit includes a plurality of touch sensing sub-electrodes.
  • One of the touch driving sub-electrode and the touch sensing sub-electrode is connected in a data line direction by a bridge mode, and the other of the touch driving sub-electrode and the touch sensing sub-electrode One is connected directly in the direction of the grid line.
  • one of the touch driving sub-electrode and the touch sensing sub-electrode is connected in a gate line manner by a bridge manner, and the other of the touch driving sub-electrode and the touch sensing sub-electrode are directly connected along a data line direction. .
  • the touch driving sub-electrodes are directly connected along the gate line direction and the touch sensing sub-electrodes are connected to each other along the data line direction by using a bridge mode
  • at least one gate line is used as a touch scan line during the touch time period. , for applying a touch scan signal to the touch driving electrode unit.
  • the touch screen further includes a signal connection line.
  • the touch driving sub-electrodes are directly connected along the gate line direction and the touch sensing sub-electrodes are connected to each other in the data line direction by a bridge method, the data lines are in the direction of the data line.
  • the adjacent touch sensing sub-electrodes are connected to each other through a signal connection line in a bridging manner, and the signal connection lines are disposed in the same direction as the data lines.
  • the touch screen further includes a signal connection line, and the touch driving sub-electrodes are connected to each other in a data line direction by a bridge mode.
  • the touch sensing sub-electrodes are directly connected along a gate line direction, the data line direction is opposite.
  • the adjacent touch driving sub-electrodes are connected to each other through a signal connection line in a bridging manner, and the signal connection lines are disposed in the same direction as the data lines.
  • the signal connection line is disposed in the same layer as the data line.
  • the touch screen further includes a signal connection line, and the touch driving sub-electrodes are directly connected along the data line direction, and when the touch sensing sub-electrodes are connected to each other in the grid line direction by a bridge method, adjacent to each other in the row direction
  • the touch sensing sub-electrodes are connected to each other through a signal connection line in a bridging manner, and the signal connection lines are disposed in the same direction as the gate lines.
  • the touch screen further includes a signal connection line, and the touch driving sub-electrodes are connected to each other in a gate line direction by a bridge manner.
  • the gate line direction is opposite.
  • the adjacent touch driving sub-electrodes are connected to each other by a bridge by a signal, and the signal connecting lines are disposed in the same direction as the gate lines.
  • the signal connection line is disposed in the same layer as the gate line.
  • One embodiment of the present invention provides a display device including the touch panel described above. For example, when the signal connection line on the touch screen is disposed in the same direction as the data line, the signal connection line is disposed in a region corresponding to the blue pixel.
  • Embodiments of the present invention provide a touch screen and a display device.
  • the touch screen includes an array substrate, and the array substrate is provided with a gate line, a data line and a common electrode layer.
  • the common electrode layer includes a plurality of mutually insulated touch driving electrode units and a touch sensing electrode unit.
  • the touch driving electrode unit includes a plurality of touch driving sub-electrodes, and the touch sensing electrode unit includes a plurality of touch sensing sub-electrodes.
  • One of the touch driving sub-electrode and the touch sensing sub-electrode is connected in a data line direction by a bridge method, and the other sub-electrode is directly connected in a grid line direction.
  • one of the touch driving sub-electrode and the touch sensing sub-electrode is connected in a grid line manner in a bridge manner, and the other sub-electrode is directly connected in a data line direction.
  • the touch screen display device forms a touch electrode of the touch screen by using a splitting scheme of the common electrode, that is, a touch driving electrode unit and a touch sensing electrode unit of the touch screen by using a bridge mode and a direct connection manner, or a touch sensing electrode of the touch screen by using a bridge method and a direct connection manner.
  • the unit and the touch driving electrode unit can realize the touch function without adding a new film layer, and the manufacturing process of the in-cell touch screen is integrated.
  • FIG. 1 is a plan top view of an array substrate according to a first embodiment of the present invention
  • Figure 2 is a cross-sectional structural view taken along line A1-A of Figure 1;
  • FIG. 3 is a plan view showing a structure of a common electrode layer according to a first embodiment of the present invention
  • FIG. 5 is a plan top view of an array substrate according to a second embodiment of the present invention.
  • FIG. 6 is a plan top view of an array substrate according to a third embodiment of the present invention
  • FIG. 7 is a top plan view of an array substrate according to a fourth embodiment of the present invention.
  • Embodiments of the present invention provide a capacitive in-cell touch panel and a display device capable of implementing a touch function without adding a new film layer.
  • a first embodiment of the present invention provides a capacitive in-cell touch panel.
  • the touch screen includes an array substrate as shown in FIG. As can be seen from FIG. 1, the array substrate is provided with a gate line 101, a data line 102, and a common electrode layer 103.
  • the common electrode layer 103 includes a plurality of touch driving electrode units 1031 and a touch sensing electrode unit 1032 (see FIG. 3 ) that are insulated from each other.
  • the touch driving electrode unit 1031 includes a plurality of touch driving sub-electrodes 1031a
  • the touch sensing electrode unit 1032 includes a plurality of touch sensing sub-electrodes 1032b.
  • the touch driving sub-electrode 1031a adopts a bridge
  • the modes are connected in the direction of the data line 102, and the touch sensing sub-electrodes 1032b are directly connected in the direction of the gate line 101.
  • the touch screen further includes a signal connection line 104.
  • the touch driving sub-electrode 1031a When the touch driving sub-electrode 1031a is bridged in the direction of the data line 102 and the touch sensing sub-electrode 1032b is directly connected in the direction of the gate line 101, the touch driving sub-electrode 1031a is adjacent to the data line 102 by the signal connecting line 104.
  • the touch driving sub-electrode is bridge-connected, and the signal connection line 104 is disposed in the same direction as the data line 102.
  • the array substrate further includes a substrate 201, a metal line 202, a gate insulating layer 203, an insulating layer 204, and a pixel electrode 205. Passivation layer 206, via 207 and metal layer 208.
  • the substrate 201 is a glass substrate.
  • the gate line 101 is located above the substrate 201.
  • the metal line 202 is disposed in the same layer as the gate line 101 and is parallel to the gate line 101.
  • the metal line 102 is connected to the common electrode layer 103 through a via 207 for reducing the resistance of the common electrode layer 103.
  • a gate insulating layer 203 is located above the gate line 101 and the metal line 202 for insulating the gate from other layer electrodes.
  • the signal connection line 104 is disposed in the same layer as the data line 102, and is made of a metal such as copper or iron.
  • the insulating layer 204 is located between the signal connection line 104 and the pixel electrode 205 for insulating the pixel electrode 205 and the signal connection line 104.
  • the pixel electrode 205 is located above the insulating layer 204 and is made of a transparent conductive material such as indium tin oxide (ITO).
  • ITO indium tin oxide
  • a passivation layer 206 is disposed between the pixel electrode 205 and the metal layer 208 for insulating the pixel electrode 205 and the metal layer 208.
  • the signal connection line 104 and the metal layer 208 are connected through the via 207.
  • the metal layer 208 is located between the passivation layer 206 and the common electrode layer 103 and is directly connected to the common electrode layer 103 for reducing the resistance of the common electrode layer 103.
  • the common electrode layer 103 is located above the metal layer 208.
  • the common electrode layer 103 includes a touch driving electrode unit 1031 and a touch sensing electrode unit 1032.
  • the plurality of touch driving sub-electrodes 1031a constituting the touch driving electrode unit 1031 are connected to each other through a signal connection line 104.
  • the user's hand or stylus When the user clicks on the touch screen with a hand or a stylus, the user's hand or stylus is coupled to the common electrode layer 103 at the touch point to create a coupling capacitance that affects the output voltage and output current at the contact. If the output voltage or / and output current changes there, it means that there is a touch action.
  • the thin film transistor 105 is for controlling the magnitude of the voltage of the pixel electrode 205 and the common electrode 103. By changing the magnitude of the voltage across the pixel electrode 205 and the common electrode 103, the electric field between the electrodes is changed, thereby changing the brightness of the liquid crystal display device to achieve display of different gray levels.
  • the common electrode layer is modified to connect the plurality of touch driving sub-electrodes together to form a touch driving electrode unit of the touch screen.
  • a plurality of touch sensing sub-electrodes are connected to form a touch sensing electrode unit of the touch screen.
  • the touch driving electrode unit and the touch sensing electrode unit are vertically arranged in cross. The specific position of the contacts in the touch screen can be determined by a row or column in which the voltage of the output of the touch driving electrode unit and the touch sensing electrode unit changes.
  • a common electrode layer is formed on the metal layer 208. Then, using the patterning process, as shown in FIG. 3, the common electrode layer is divided into a vertical cross-aligned touch driving electrode unit 1031 and a touch sensing electrode unit 1032.
  • the touch sensing electrode units 1032 are lateral arrays, and each horizontal array is electrically isolated from an adjacent horizontal array.
  • Each of the horizontal arrays includes a plurality of touch sensing sub-electrodes 1032b, and each of the plurality of lateral sensing sub-electrodes 1032b is electrically connected in sequence.
  • Touch sensing sub-electrode 1032b It is formed by electrically connecting a common electrode of a plurality of pixels.
  • the touch drive electrode unit 1031 is a longitudinal array, and each longitudinal array is electrically isolated from an adjacent longitudinal array.
  • Each of the longitudinal arrays includes a plurality of touch drive sub-electrodes 1031a, and each of the longitudinal touch drive sub-electrodes 1031a are electrically connected in sequence.
  • the touch driving sub-electrode 1031a is formed by electrically connecting together a common electrode of a plurality of pixels.
  • the common electrode layer 103 is continuous over the entire surface. Therefore, in the process of etching the touch driving electrode unit 1031 and the touch sensing electrode unit 1032 on a continuous continuous common electrode layer 103, as shown in FIG. 3, if the touch sensing electrode unit 1032 is ensured during etching, The plurality of touch-sensing sub-electrodes 1032b in each of the lateral touch driving electrode units 1031 are disconnected. In order to realize the electrical connection between each of the plurality of vertical touch driving sub-electrodes 1031a, an additional signal connecting line 104 is required to electrically connect the plurality of longitudinal touch driving sub-electrodes 1031a.
  • the signal connection line 104 must be disposed on a different layer from the common electrode layer. Otherwise, the touch sensing sub-electrode 1032b connected along the gate line direction will be short-circuited with the touch driving sub-electrode 1031a connected along the data line direction, that is, touch. The sensing electrode unit 1032 will be short-circuited with the touch driving electrode unit 1031.
  • FIG. 4 is an equivalent view of the common electrode layer of FIG. 1.
  • Each horizontal line in Figure 4 represents a transverse array ⁇ ij
  • each vertical line represents a longitudinal array.
  • Each of the lateral arrays and each of the longitudinal arrays respectively intersect to form a plurality of intersections.
  • the intersection of the horizontal array 103 and the longitudinal array 1031" is the point B ( Xl , yj ) 0
  • a detecting unit is further provided.
  • the detecting unit provides a reference voltage value at the output of each pixel unit.
  • the detecting unit sequentially scans each of the horizontal array and the vertical array, and compares the detected actual voltage values of the horizontal arrays and the vertical array with the reference voltage values to determine whether they are touched. The following is an example to determine whether point B is touched and how to determine the coordinates (X, y) of point B as an example.
  • transverse array 1032 [mu] After completion detecting unit scans and detects transverse array 1032 [mu], followed by transverse array 103 is scanned, successively detecting the actual voltage value of each point of the output of the transverse array 103, and detects the reference voltage value of the actual voltage value detection unit provided Compared. If the detected actual voltage value is the same as the reference voltage value, it means that there is no touched point on the lateral array 103; if the detected actual voltage value is different from the reference voltage value, it means that there is a touch on the horizontal array 1033 ⁇ 4 The point at which the ordinate y of the touched point can be determined.
  • the detecting unit is sequentially scanning each longitudinal array ij, and after scanning and detecting the vertical array 1031, the detecting unit then scans the vertical array 1031j, and detects the actual voltage value outputted by each point in the vertical array 103 lj, and The actual voltage value detected is compared to the reference voltage value provided by the detection unit. If the detected actual voltage value is the same as the reference voltage value, it means that there is no touched point on the vertical array; if the detected actual voltage value is different from the reference voltage value, it means that there is a touch on the vertical array 1031" The point, and thus the abscissa x of the touched point.
  • the second embodiment of the present invention provides another array substrate.
  • the planar top view is as shown in FIG. 5.
  • the touch driving sub-electrode 1031a Directly connected along the gate line 101
  • the touch sensing sub-electrodes 1032b are bridged in the direction of the data line 102.
  • the touch sensing sub-electrode 1032b is connected to the touch sensing sub-electrode adjacent to the data line by a signal connection line, wherein the signal connection line is disposed in the same direction as the data line.
  • the working principle of the array substrate shown in FIG. 5 is the same as that of the array substrate shown in FIG. 1.
  • a third embodiment of the present invention provides an array substrate, a plan view of which is shown in FIG. Different from the array substrate shown in FIG. 1 , in the array substrate shown in FIG. 6 , the touch driving sub-electrode 1031 a is directly connected along the data line 102 , and the touch sensing sub-electrode 1032 b is bridged along the gate line 101 . Connected. The touch sensing sub-electrode 1032b is connected to the touch sensing sub-electrode adjacent in the row direction through the signal connection line 104, and the signal connection line 104 is disposed in the same direction as the gate line 101.
  • the working principle of the array substrate shown in FIG. 6 is the same as that of the array substrate shown in FIG. 1.
  • a fourth embodiment of the present invention provides an array substrate, and a plan view thereof is shown in FIG. Different from the array substrate shown in FIG. 1, in the array substrate shown in FIG. 7, the touch driving sub-electrodes 1031a are bridge-connected in the grid line direction, and the touch sensing sub-electrodes 1032b are directly connected in the direction of the data line 102.
  • the touch driving sub-electrode 1031a is connected to the touch driving sub-electrode adjacent to the gate line by a signal connecting line, and the signal connecting line 104 is disposed in the same direction as the gate line 101.
  • the working principle of the array substrate shown in Fig. 7 is the same as that of the array substrate shown in Fig. 1.
  • Another embodiment of the present invention also provides a display device including the above-described touch screen.
  • the signal connection line 104 on the touch screen is disposed in the same direction as the data line 102, the signal connection line 104 is disposed in an area corresponding to the blue pixel. Because the sensitivity of the human eye to color is different, it is not sensitive to the recognition of blue, so even if the component of the blue pixel is relatively reduced, it will not affect the screen display.
  • the capacitive in-cell touch panel and the display device do not need to additionally provide the sensing electrode and the touch electrode, but improve the common electrode layer, so that the improved common electrode can be combined with the pixel.
  • An electric field is formed between the electrodes to drive the movement of the liquid crystal molecules.
  • the common electrode can form a coupling capacitance with the user at the touch point to determine whether the touch screen is touched.
  • the common electrode layer has a cross-arranged touch sensing electrode unit array and a touch driving electrode unit array
  • the touch sensing electrode unit array is a horizontal array
  • the touch driving electrode unit array is a vertical array, so that each scanning can be sequentially performed A horizontal touch sensing electrode unit array, and sequentially scanning each longitudinal touch driving electrode unit array, thereby comprehensively obtaining a specific position of the touched point.
  • the display device provided by the embodiment of the invention is more light and thin, and the control is more accurate and reliable, since the touch sensing electrode and the touch driving electrode are not required to be additionally provided.
  • the present invention uses a whole signal line to connect the touch driving electrodes or the touch sensing electrodes, thereby reducing the signal. The delay increases the speed of signal transmission.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Position Input By Displaying (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

一种电容内嵌式触摸屏和显示装置，用以解决基于普通像素设计的公共电极分割的连接问题；所述电容内嵌式触摸屏包括阵列基板；所述阵列基板上设置有栅线（101）、数据线（102）和公共电极层（103）；其中，所述公共电极层（103）包括多个相互绝缘的触控驱动电极单元（1031）和触摸感应电极单元（1032）；所述触控驱动电极单元（1031）包括多个触控驱动子电极（1031a）；所述触控感应电极单元（1032）包括多个触控感应子电极（1032b）；所述触控驱动子电极（1031a）和触控感应子电极（1032b）中的一个采用搭桥方式沿数据线（102）方向连接，另一个沿栅线（101）方向直接连接；或所述触控驱动子电极（1031a）和触控感应子电极（1032b）中的一个采用搭桥方式沿栅线（101）方向连接，另一个子电极沿数据线（102）方向直接连接。

Description

电容内嵌式触摸屏和显示装置 技术领域
本发明涉及一种电容内嵌式触摸屏和显示装置。 背景技术
触摸屏是允许用户直接用手或物体，通过选择显示在图像显示器等的屏 幕上的指令内容来输入用户指令的输入设备。用户用手或物体直接与触摸屏 接触时，触摸屏检测到触摸点并根据所选图标指示的命令来驱动液晶显示装 置， 以实现特定的显示。
现有的触摸屏， 根据其设置在液晶显示器上的位置的不同， 主要分为外 置型和内嵌式两种。其中，内嵌式触摸屏设置在液晶显示装置的面板的内部， 这样可以大大的减小液晶显示器产品的厚度。 目前， 具有内嵌式触摸屏的显 示装置的设计方案有很多种。一般是通过在液晶盒内多增加一层或两层透明 电极，从而实现触摸功能。 然而， 此结构的内嵌式触摸屏的工艺复杂， 同时， 影响了液晶显示器的透过率。 发明内容
本发明实施例提供了一种电容内嵌式触摸屏和显示装置， 能够在不增加 新的膜层的条件下实现触控功能。
本发明实施例提供了一种电容内嵌式触摸屏， 该触摸屏包括阵列基板， 所述阵列基板上设置有栅线、 数据线和公共电极层。 其中， 所述公共电极 层包括多个相互绝缘的触控驱动电极单元和触摸感应电极单元。 所述触控 驱动电极单元包括多个触控驱动子电极， 所述触控感应电极单元包括多个 触控感应子电极。 所述触控驱动子电极和触控感应子电极中的一个采用搭 桥方式沿数据线方向连接， 所述触控驱动子电极和触控感应子电极中的另 一个沿栅线方向直接连接。 或者， 所述触控驱动子电极和触控感应子电极 中的一个采用搭桥方式沿栅线方向连接， 所述触控驱动子电极和触控感应 子电极中的另一个沿数据线方向直接连接。
例如，当所述触控驱动子电极沿栅线方向直接连接并且所述触控感应子 电极采用搭桥方式沿数据线方向彼此连接时， 至少有一条栅线在触控时间 段作为触控扫描线， 用于给触控驱动电极单元施加触控扫描信号。
例如， 所述触摸屏还包括信号连接线， 当所述触控驱动子电极沿栅线方 向直接连接并且所述触控感应子电极采用搭桥方式沿数据线方向彼此连接 时， 在数据线方向上相邻的所述触控感应子电极通过信号连接线采用搭桥 方式彼此连接， 所述信号连接线与所述数据线同方向设置。
例如， 所述触摸屏还包括信号连接线， 所述触控驱动子电极采用搭桥方 式沿数据线方向彼此连接， 所述触控感应子电极沿栅线方向直接连接时， 所述数据线方向上相邻的所述触控驱动子电极通过信号连接线采用搭桥方 式彼此连接， 所述信号连接线与所述数据线同方向设置。
例如， 所述信号连接线与所述数据线同层设置。
例如， 所述触摸屏还包括信号连接线， 所述触控驱动子电极沿数据线方 向直接连接， 所述触控感应子电极采用搭桥方式沿栅线方向彼此连接时， 在行方向上相邻的所述触控感应子电极通过信号连接线采用搭桥方式彼此 连接， 所述信号连接线与所述栅线同方向设置。
例如， 所述触摸屏还包括信号连接线， 所述触控驱动子电极采用搭桥方 式沿栅线方向彼此连接， 所述触控感应子电极沿数据线方向直接连接时， 所述栅线方向上相邻的所述触控驱动子电极通过信号采用搭桥方式彼此连 接， 所述信号连接线与所述栅线同方向设置。
例如， 所述信号连接线与所述栅线同层设置。
本发明的一个实施例提供的一种显示装置，所述显示装置包括上述的触 摸屏。 例如， 所述触摸屏上的信号连接线在与数据线同向设置时， 所述信号连 接线设置在与蓝色像素对应的区域内。
本发明实施例提供了一种触摸屏和显示装置。 所述触摸屏包括阵列基 板， 所述阵列基板上设置有栅线、 数据线和公共电极层。 其中， 所述公共电 极层包括多个相互绝缘的触控驱动电极单元和触摸感应电极单元。所述触控 驱动电极单元包括多个触控驱动子电极， 所述触控感应电极单元包括多个触 控感应子电极。所述触控驱动子电极和触控感应子电极中的一个采用搭桥方 式沿数据线方向连接， 另一个子电极沿栅线方向直接连接。 或者， 所述触控 驱动子电极和触控感应子电极中的一个采用搭桥方式沿栅线方向连接， 另一 个子电极沿数据线方向直接连接。所述触摸屏显示装置通过设计公共电极的 分割方案， 即， 利用搭桥方式和直接连接方式形成触摸屏的触控驱动电极单 元和触摸感应电极单元， 或利用搭桥方式和直接连接方式形成触摸屏的触摸 感应电极单元和触控驱动电极单元，可以在不增加新的膜层的条件下实现触 控功能， 筒化了内嵌式触摸屏的制作工艺。 附图说明 为了更清楚地说明本发明实施例的技术方案，下面将对实施例的附图 作筒单地介绍， 显而易见地， 下面描述中的附图仅仅涉及本发明的一些实施 例， 而非对本发明的限制。 图 1 为本发明第一实施例提供的阵列基板的平面俯视图；
图 2为沿图 1中 A1-A方向的剖面结构图；
图 3为本发明第一实施例提供的公共电极层的平面结构图；
图 4为本发明第一实施例提供的公共电极的等效电路图；
图 5为本发明第二实施例提供的阵列基板的平面俯视图；
图 6为本发明第三实施例提供的阵列基板的平面俯视图； 图 7为本发明第四实施例提供的阵列基板的平面俯视图。 具体实施方式 为使本发明实施例的目的、 技术方案和优点更加清楚， 下面将结合本发 明实施例的附图，对本发明实施例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的一部分实施例， 而不是全部的实施例。 基于所描 述的本发明的实施例，本领域普通技术人员在无需创造性劳动的前提下所获 得的所有其他实施例， 都属于本发明保护的范围。
除非另作定义， 此处使用的技术术语或者科学术语应当为本发明所属领 域内具有一般技能的人士所理解的通常意义。本发明专利申请说明书以及权 利要求书中使用的 "第一"、 "第二" 以及类似的词语并不表示任何顺序、 数 量或者重要性， 而只是用来区分不同的组成部分。 同样， "一个" 或者 "一" 等类似词语也不表示数量限制， 而是表示存在至少一个。 "包括" 或者 "包 含" 等类似的词语意指出现在 "包括" 或者 "包含" 前面的元件或者物件涵 盖出现在 "包括" 或者 "包含" 后面列举的元件或者物件及其等同， 并不排 除其他元件或者物件。 "连接" 或者 "相连" 等类似的词语并非限定于物理 的或者机械的连接， 而是可以包括电性的连接， 不管是直接的还是间接的。 "上"、 "下"、 "左"、 "右" 等仅用于表示相对位置关系， 当被描述对象的绝 对位置改变后， 则该相对位置关系也可能相应地改变。 本发明实施例提供了一种电容内嵌式触摸屏和显示装置， 能够在不增加 新的膜层的条件下实现触控功能。
本发明第一实施例提供了一种电容内嵌式触摸屏。该触摸屏包括阵列基 板， 如图 1所示。 从图 1 中可以看出， 所述阵列基板上设置有栅线 101、 数据线 102和公共电极层 103。 其中， 公共电极层 103包括多个相互绝缘 的触控驱动电极单元 1031和触摸感应电极单元 1032 (参见图 3 )。 触控驱 动电极单元 1031包括多个触控驱动子电极 1031a,触控感应电极单元 1032 包括多个触控感应子电极 1032b。 其中， 触控驱动子电极 1031a采用搭桥 方式沿数据线 102方向连接， 触控感应子电极 1032b沿栅线 101方向直接 连接。
如图 1所示， 触摸屏还包括信号连接线 104。 当触控驱动子电极 1031a 沿数据线 102方向搭桥连接并且触控感应子电极 1032b沿栅线 101方向直 接连接时， 触控驱动子电极 1031a通过信号连接线 104与数据线 102方向 上相邻的触控驱动子电极搭桥连接， 信号连接线 104与数据线 102同方向 设置。
图 2为沿图 1中虚线 A1-A方向的剖面结构图， 从图 2中可以看出， 阵 列基板还包括基板 201 , 金属线 202、 栅极绝缘层 203、 绝缘层 204、 像素 电极 205、 钝化层 206、 过孔 207和金属层 208。 其中， 基板 201为玻璃基 板。 栅线 101位于基板 201上方。 金属线 202与栅线 101同层设置， 并且 与栅线 101平行。 该金属线 102通过过孔 207与公共电极层 103连接， 用 于降低公共电极层 103的电阻。
栅极绝缘层 203位于栅线 101和金属线 202的上方，用于将栅极与其它 层电极绝缘。
信号连接线 104与数据线 102同层设置， 其制作材料为例如铜、铁等金 属。
绝缘层 204位于信号连接线 104和像素电极 205之间，用于将像素电极 205和信号连接线 104绝缘。
像素电极 205 , 位于绝缘层 204上方， 其制作材料为透明导电材料， 如 氧化铟锡（ITO )等。
钝化层 206位于像素电极 205和金属层 208之间， 用于将像素电极 205 和金属层 208进行绝缘。
通过过孔 207连接信号连接线 104和金属层 208。
金属层 208位于钝化层 206和公共电极层 103之间， 与公共电极层 103 直接连接， 用于降低公共电极层 103的电阻。 公共电极层 103位于金属层 208上方，公共电极层 103包括触控驱动电 极单元 1031和触控感应电极单元 1032。其中，组成触控驱动电极单元 1031 的多个触控驱动子电极 1031a通过信号连接线 104相互连接。
当用户用手或触控笔点击触摸屏时，用户的手或触控笔在触摸点处与公 共电极层 103耦合， 产生耦合电容， 从而影响该触点处的输出电压和输出 电流。 若该处的输出电压或 /和输出电流发生变化， 则表示该处有触控动作 发生。
进一步的， 当判断触摸屏是否被触摸后，还需要确定触摸屏中触摸点的 具体位置。
本发明第一实施例提供的阵列基板中， 如图 1所示， 还包括具有栅极
105a, 源极 105b和漏极 105c的薄膜晶体管 (TFT) 105。 其中， 栅极 105a与栅线 101电连接， 源极 105b与数据线 102连接， 漏极 105c通过过孔与像素电极 205 电连接。 薄膜晶体管 105用于控制像素电极 205和公共电极 103的电压大小。 通过改变像素电极 205和公共电极 103两端电压的大小，使两电极之间的电场 发生变化， 从而改变液晶显示装置的亮度， 以实现不同灰阶的显示。
本发明实施例提供的触摸屏中， 对公共电极层进行改进，使多个触控驱 动子电极连接在一起形成触摸屏的触控驱动电极单元。 另外， 连接多个触 控感应子电极以形成触摸屏的触控感应电极单元。 触控驱动电极单元和触 控感应电极单元垂直交叉排列。 可通过触控驱动电极单元和触控感应电极 单元中输出的电压发生变化的行或列， 确定触摸屏中触点的具体位置。
在金属层 208上形成公共电极层。 然后利用构图工艺， 如图 3所示， 将 公共电极层划分为垂直交叉排列的触控驱动电极单元 1031 和触控感应电 极单元 1032。
如图 3所示， 触控感应电极单元 1032为横向阵列， 每一横向阵列与相 邻横向阵列间电隔离。 每一横向阵列包括多个触控感应子电极 1032b, 且 每一横向的多个触控感应子电极 1032b依次电连接。触控感应子电极 1032b 是由多个像素的公共电极电连接在一起形成的。
触控驱动电极单元 1031为纵向阵列， 每一纵向阵列与相邻纵向阵列间 电隔离。 每一纵向阵列包括多个触控驱动子电极 1031a, 且每一纵向的触 控驱动子电极 1031a依次电连接。 触控驱动子电极 1031a是由多个像素的 公共电极电连接在一起形成的。
由于从液晶显示装置的整体上看， 公共电极层 103是整面连续的。 因此， 在一个整面连续的公共电极层 103上刻蚀形成触控驱动电极单元 1031和触控 感应电极单元 1032的过程中， 如图 3所示， 若刻蚀时保证触控感应电极单元 1032中的每一横向的多个触控感应子电极 1032b间是连续的， 那么触控驱动 电极单元 1031中每一纵向的多个触控驱动子电极 1031a就是断开的。 要实现 每一纵向的多个触控驱动子电极 1031a间的电连接， 就需要额外的设置信号 连接线 104, 使每一纵向的多个触控驱动子电极 1031a间电连接。
信号连接线 104必须和公共电极层设置在不同层上， 否则沿栅线方向连 接的触控感应子电极 1032b将会和沿数据线方向连接的触控驱动子电极 1031a短路在一起， 即触控感应电极单元 1032将会和触控驱动电极单元 1031 短路在一起。
图 4为图 1中的公共电极层的等效图。 图 4中每一条横线表示一个横向阵 歹 ij , 每一条竖线表示一个纵向阵列。 1032^ 103 和10321+1表示三个相邻的 横向阵列， 即触控感应电极单元阵列， 其中， i = 1 , 2, 3 , 4...... ； 1031 、 1031」和1031」+1为三个相邻的纵向阵列， 即触控驱动电极单元阵列， 其中， j = 1 , 2, 3 , 4......。 每一横向阵列和每一纵向阵列分别交叉， 形成多个交点。 例如， 横向阵列 103 与纵向阵列 1031」相交的交点为点 B(Xl, yj)0
在此液晶显示装置中， 还设置有检测单元。 该检测单元提供各像素单元 输出端的参考电压值。 检测单元依次扫描各横向阵列和纵向阵列， 将检测到 的各横向阵列和纵向阵列的实际电压值与参考电压值进行比较， 判断是否被 触摸。 下面以确定点 B是否被触摸， 及如何确定点 B 的坐标 (X , y) 为例进行具 体说明。
当检测单元扫描并检测完横向阵列 1032Μ后， 接着对横向阵列 103 进行 扫描，依次检测横向阵列 103 中各点输出的实际电压值， 并且将检测到实际 电压值与检测单元提供的参考电压值相比较。若检测到的实际电压值与参考 电压值相同， 则表示横向阵列 103 上不存在被触摸的点； 若检测到的实际电 压值与参考电压值不相同， 那么则表示横向阵列 103¾上存在被触摸的点， 由 此可以确定被触摸点的纵坐标y。 此时， 检测单元正在依次扫描每一纵向阵 歹 ij , 当扫描完并检测完纵向阵列 1031 后，检测单元接着扫描纵向阵列 1031j , 并检测纵向阵列 103 lj中各点输出的实际电压值，并且将检测到实际电压值与 检测单元提供的参考电压值相比较。若检测到的实际电压值与参考电压值相 同， 则表示该纵向阵列上不存在被触摸的点； 若检测到的实际电压值与参考 电压值不相同， 则表示纵向阵列 1031」上存在被触摸的点， 并由此可以确定被 触摸点的横坐标 x。 综合考虑横向阵列和纵向阵列， 若横向阵列 103 上存在 被触摸的点， 纵向阵列 1031」上也存在被触摸的点， 那么根据横向阵列 103 的对应的纵坐标 y和纵向阵列 1031」的对应的横坐标 X , 即可得出被触摸的点 B 的坐标为（X , y)。
本发明第二实施例提供了另一种阵列基板， 其平面俯视图如图 5所示， 与图 1所示阵列基板不同的是， 在图 5所示的阵列基板中， 触控驱动子电 极 1031a沿栅线 101方向直接连接， 触控感应子电极 1032b沿数据线 102 方向搭桥连接。 触控感应子电极 1032b通过信号连接线与在数据线方向上 相邻的触控感应子电极搭桥连接， 其中，信号连接线与数据线同方向设置。 图 5所示阵列基板的工作原理与图 1所示阵列基板的工作原理相同。
本发明第三实施例提供了一种阵列基板， 其平面俯视图如图 6所示。 与 图 1所示阵列基板不同的是,在图 6所示阵列基板中，触控驱动子电极 1031a 沿数据线 102方向直接连接， 触控感应子电极 1032b沿栅线 101方向搭桥 连接。 其中， 触控感应子电极 1032b通过信号连接线 104与在行方向上相 邻的触控感应子电极搭桥连接， 信号连接线 104与栅线 101同方向设置。 图 6所示阵列基板的工作原理与图 1所示阵列基板的工作原理相同。
本发明第四实施例提供了一种阵列基板， 其平面俯视图如图 7所示。 与 图 1所示阵列基板不同的是,在图 7所示阵列基板中，触控驱动子电极 1031a 沿栅线方向搭桥连接，触控感应子电极 1032b沿数据线 102方向直接连接。 其中， 触控驱动子电极 1031a通过信号连接线与栅线方向上相邻的触控驱 动子电极搭桥连接， 信号连接线 104与栅线 101同方向设置。 图 7所示阵 列基板的工作原理与图 1所示阵列基板的工作原理相同。
本发明的另一实施例还提供了一种显示装置，该显示装置包括上述的触 摸屏。
触摸屏上的信号连接线 104在与数据线 102 同向设置时， 信号连接线 104设置在与蓝色像素对应的区域内。 因为人眼对色彩的灵敏度不同， 对 蓝色的识别不敏感， 所以即使相对的减少蓝色像素的分量， 也不会对画面 显示造成影响。
综上所述， 本发明实施例提供的电容内嵌式触摸屏和显示装置， 不需要 额外设置感应电极和触控电极， 而是对公共电极层进行了改进， 使得改进后 的公共电极可以与像素电极之间形成电场用以驱动液晶分子的运动。 同时， 公共电极可以和用户在触摸点处形成耦合电容， 用以判断触摸屏是否被触 摸。 并且， 由于公共电极层具有交叉排列的触控感应电极单元阵列和触控驱 动电极单元阵列， 触控感应电极单元阵列为横向阵列， 触控驱动电极单元阵 列为纵向阵列， 因而可以通过依次扫描每一横向的触控感应电极单元阵列， 并依次扫描每一纵向的触控驱动电极单元阵列，从而综合得出被触摸点的具 体位置。 由于不需要额外设置触控感应电极和触控驱动电极， 因此， 本发明 实施例提供的显示装置更加轻薄， 且控制更加准确可靠。 此外， 本发明采用 一整条信号线对触摸驱动电极或触摸感应电极进行连接，从而可以降低信号 的延迟， 提高信号传输的速度。 发明的精神和范围。 这样， 倘若本发明的这些修改和变型属于本发明权利要 求及其等同技术的范围之内， 则本发明也意图包含这些改动和变型在内。

Claims

权利要求书
1、 一种电容内嵌式触摸屏， 包括阵列基板， 所述阵列基板上设置有栅 线、 数据线和公共电极层， 其中，
所述公共电极层包括多个相互绝缘的触控驱动电极单元和触摸感应电 极单元；
所述触控驱动电极单元包括多个触控驱动子电极，所述触控感应电极单 元包括多个触控感应子电极；
其中，所述触控驱动子电极和触控感应子电极中的一个采用搭桥方式沿 数据线方向连接， 所述触控驱动子电极和触控感应子电极中的另一个沿栅 线方向直接连接； 或者， 所述触控驱动子电极和触控感应子电极中的一个 采用搭桥方式沿栅线方向连接， 所述触控驱动子电极和触控感应子电极中 的另一个沿数据线方向直接连接。
2、 根据权利要求 1所述的触摸屏， 其中， 当所述触控驱动子电极沿栅 线方向直接连接并且所述触控感应子电极采用搭桥方式沿数据线方向彼此 连接时， 至少有一条栅线在触控时间段作为触控扫描线， 用于给触控驱动 电极单元施加触控扫描信号。
3、 根据权利要求 1所述的触摸屏， 其中， 所述触摸屏还包括信号连接 线， 当所述触控驱动子电极沿栅线方向直接连接并且所述触控感应子电极 采用搭桥方式沿数据线方向彼此连接时， 在所述数据线方向上相邻的所述 触控感应子电极通过信号连接线采用搭桥方式彼此连接， 所述信号连接线 与所述数据线同方向设置。
4、 根据权利要求 1所述的触摸屏， 其中， 所述触摸屏还包括信号连接 线， 当所述触控驱动子电极采用搭桥方式沿数据线方向彼此连接并且所述 触控感应子电极沿栅线方向直接连接时， 在所述数据线方向上相邻的所述 触控驱动子电极通过信号连接线采用搭桥方式彼此连接， 所述信号连接线 与所述数据线同方向设置。
5、 根据权利要求 3或 4所述的触摸屏， 其中， 所述信号连接线与所述 数据线同层设置。
6、 根据权利要求 1所述的触摸屏， 其中， 所述触摸屏还包括信号连接 线， 当所述触控驱动子电极沿数据线方向直接连接并且所述触控感应子电 极采用搭桥方式沿栅线方向彼此连接时， 在行方向上相邻的所述触控感应 子电极通过信号连接线采用搭桥方式彼此连接， 所述信号连接线与所述栅 线同方向设置。
7、 根据权利要求 1所述的触摸屏， 其中， 所述触摸屏还包括信号连接 线， 当所述触控驱动子电极采用搭桥方式沿栅线方向彼此连接并且所述触 控感应子电极沿数据线方向直接连接时， 在所述栅线方向上相邻的所述触 控驱动子电极通过信号连接线采用搭桥方式彼此连接， 所述信号连接线与 所述栅线同方向设置。
8、 根据权利要求 6或 7所述的触摸屏， 其中， 所述信号连接线与所述 栅线同层设置。
9、 一种显示装置， 包括权利要求 1-8中任一所述的触摸屏。
10、 根据权利要求 9所述的显示装置， 其中， 所述触摸屏上的信号连接 线与数据线同向设置时，所述信号连接线设置在与蓝色像素对应的区域内。
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