WO2015103824A1 - 阵列基板、电容式触摸屏和触控显示装置 - Google Patents

阵列基板、电容式触摸屏和触控显示装置 Download PDF

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Publication number
WO2015103824A1
WO2015103824A1 PCT/CN2014/075979 CN2014075979W WO2015103824A1 WO 2015103824 A1 WO2015103824 A1 WO 2015103824A1 CN 2014075979 W CN2014075979 W CN 2014075979W WO 2015103824 A1 WO2015103824 A1 WO 2015103824A1
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Prior art keywords
electrodes
electrode
common electrode
touch
array substrate
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Application number
PCT/CN2014/075979
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English (en)
French (fr)
Inventor
杨盛际
董学
王海生
王磊
王春雷
刘英明
Original Assignee
京东方科技集团股份有限公司
北京京东方光电科技有限公司
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Priority to US14/406,322 priority Critical patent/US9606657B2/en
Publication of WO2015103824A1 publication Critical patent/WO2015103824A1/zh

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    • 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
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G—PHYSICS
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    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
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    • G—PHYSICS
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    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
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    • G02F1/1362—Active matrix addressed cells
    • G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
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    • 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
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    • 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
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    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3648—Control of matrices with row and column drivers using an active matrix
    • G09G3/3655—Details of drivers for counter electrodes, e.g. common electrodes for pixel capacitors or supplementary storage capacitors
    • G—PHYSICS
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    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04101—2.5D-digitiser, i.e. digitiser detecting the X/Y position of the input means, finger or stylus, also when it does not touch, but is proximate to the digitiser's interaction surface and also measures the distance of the input means within a short range in the Z direction, possibly with a separate measurement setup
    • G—PHYSICS
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    • G06F—ELECTRIC DIGITAL DATA PROCESSING
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    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04111—Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
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    • G06F2203/04112—Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material
    • G—PHYSICS
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    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
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    • G—PHYSICS
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    • G09G2300/0421—Structural details of the set of electrodes
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    • G09G2310/00—Command of the display device
    • G09G2310/08—Details of timing specific for flat panels, other than clock recovery

Definitions

  • Embodiments of the present invention relate to an array substrate, a capacitive in-cell touch panel, and a touch display device. Background technique
  • the composition of the touch screen it can be divided into: an add on Mode Touch Panel, an On Cell Touch Panel, and an In Cell Touch Panel.
  • the external touch screen is produced by separately separating the touch screen from the liquid crystal display (LCD), and then bonding them together to form a liquid crystal display with touch function.
  • the external touch screen has high manufacturing cost, low light transmittance, and mode.
  • the group is thicker; covering the surface type touch screen also has the problem of thicker modules.
  • the capacitive in-cell touch screen embeds the touch driving electrode of the touch screen inside the liquid crystal display. Since the touch sensing circuit is implemented in the box, the module can be made thinner and lighter than other touch screen implementations. And more cost effective.
  • the existing capacitive in-cell touch panel is directly added to an existing thin film field effect transistor (TFT) array substrate by adding additional touch scan lines and touch sensing lines, that is, on the TFT array substrate.
  • TFT thin film field effect transistor
  • the surface is formed by two layers of indium tin oxide (ITO) electrodes which are intersected by mutually different surfaces, and the two electrodes are respectively used as a touch driving line and a touch sensing line of the touch screen, and the two electrodes are The mutual intersections form a mutual capacitance; or a part of the common electrode on the array substrate is used as a touch driving line, and an additional touch sensing line is added on the color film substrate.
  • ITO indium tin oxide
  • the above preparation process when preparing a TFT array substrate for a capacitive in-cell touch panel, has high preparation cost and low production efficiency, and also means an increase in preparation cost and preparation difficulty of the capacitive in-cell touch panel. Summary of the invention
  • an array substrate including:
  • a substrate on which a plurality of pixel units, a common electrode layer, and a pixel electrode layer are arranged in a matrix, and a gate signal line and a common electrode signal line are disposed in a row direction, and the adjacent two columns of the image
  • a data line is arranged between the prime units
  • the common electrode layer includes a plurality of touch driving electrodes and a plurality of common electrodes, and each of the touch driving electrodes extends in a row direction, and each of the common electrodes extends in a column direction; in a display time of one frame, Each of the touch driving electrodes is configured to transmit a touch scan signal and a common electrode signal in a time division manner; the pixel electrode layer includes a plurality of first wires, and a projection of each of the first wires on the TFT array substrate is located The data line in the area where the common electrode is located at least partially overlaps with the data line projected in the area where the common electrode is located, and the plurality of the first wires projected in the same region of the common electrode constitute a touch Induction electrode.
  • each of the touch driving electrodes includes a plurality of touch driving sub-electrodes disposed in the same direction, and each of the touch driving sub-electrodes is located between the adjacent common electrodes.
  • each of the touch driving sub-electrodes of the touch driving electrode and the at least one common electrode signal line are electrically connected through the first via.
  • each of the common electrodes is a strip electrode, and the common electrode and the touch driving sub-electrode are insulated from each other.
  • the common electrode and the common electrode signal line to which the touch driving electrode is not connected are electrically connected through the second via.
  • each of the common electrodes includes a plurality of the common sub-electrodes, and each of the common electrodes includes a plurality of the common sub-electrodes corresponding to a column of the touch driving sub-electrodes.
  • each of the touch driving sub-electrodes of the touch driving electrode and the at least one common electrode signal line are electrically connected through the first via, and the common sub-electrode and the touch driving electrode are The common electrode signal lines to which the touch driving electrodes are not connected are electrically connected through the second via holes.
  • each of the touch driving sub-electrodes of the touch driving electrode and the common sub-electrode on the row of the touch driving electrodes are connected to the at least one common electrode signal line through the first via. connection.
  • each adjacent two rows of pixel units is a pixel unit group, and two rows of the pixel signal lines are disposed between two rows of the pixel unit groups of each of the pixel unit groups, and the two The gate signal lines respectively provide gate scanning signals for a row of the pixel units, and one common electrode signal line is disposed between each adjacent two of the pixel unit groups.
  • a capacitive touch screen includes two substrates of a pair of boxes and a liquid crystal disposed between the two substrates, wherein one of the two substrates is an array substrate according to the above embodiment. .
  • a touch display device including the capacitive touch screen according to the above embodiment.
  • FIG. 1 is a partial plan view of an array substrate according to an embodiment of the present invention.
  • FIG. 2 is a partial cross-sectional view of an array substrate according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a touch driving electrode and a touch sensing electrode according to an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of a first array substrate according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a second array substrate according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a third array substrate according to an embodiment of the present invention. detailed description
  • an embodiment of the present invention provides an array substrate including a substrate 1 on which a plurality of pixel units 2 arranged in a matrix are formed, and a gate signal line 3 and a common electrode signal line 4 are disposed in a row direction.
  • a data line 5 is disposed between the adjacent two columns of pixel units 2.
  • a common electrode layer 20 and a pixel electrode layer 30 are also included.
  • the common electrode layer 20 includes a plurality of touch driving electrodes 6 and a plurality of common electrodes 7.
  • the touch driving electrodes 6 and the common electrodes 7 are disposed at intersections, and each touch driving is performed.
  • the electrodes 6 extend along the row direction of the pixel unit 2, and the common electrodes 7 extend along the column direction of the pixel unit 2; during the display time of one frame, the touch driving electrodes 6 are used for time-division transfer of the touch scan signals and Common electrode signal.
  • the pixel electrode layer 30 includes a plurality of first wires 8 .
  • the projection of each of the first wires 8 on the substrate 1 is located in the region where the common electrode 7 is located, and is opposite to the position of the data line 5 projected in the region where the common electrode 7 is located.
  • the plurality of first wires 8 projecting in the region where the same common electrode 7 is located constitute a touch sensing electrode 9.
  • the gate signal line 3 and the common electrode line 4 may be provided according to design requirements, such as a single gate structure or a double gate structure.
  • the double gate structure indicated in this embodiment is as follows: each adjacent two rows of pixel units 2 is a pixel unit 2 group, and two gate signal lines are disposed between two rows of pixel units 2 of each pixel unit 2 group. 3.
  • the two gate signal lines 3 respectively provide gate scanning signals for one row of pixel units 2, and one common electrode signal line 4 is disposed between each adjacent two pixel unit groups 2. It should be noted that the above examples are for illustrative purposes only, and the present invention is not limited thereto.
  • each of the touch driving electrodes 6 includes a plurality of touch driving sub-electrodes 61 disposed in the same direction, and each of the touch driving sub-electrodes 61 is located between the adjacent common electrodes 7. Since the touch driving electrodes 6 and the touch sensing electrodes 9 are crossed, in order to ensure that the two are not in contact, it is necessary to make the one of the two portions in the common electrode layer 20 a discontinuous structure.
  • the size and shape of the touch driving electrode 6 and the common electrode 7 can be adjusted according to actual design requirements or production process requirements. There are detailed instructions as follows:
  • the touch drive line is denoted by ⁇
  • the touch sense line is denoted by RX
  • the touch drive electrode 6 is a part of the touch drive line
  • the touch sensing electrode 9 is part of the touch sensing line RX
  • the touch is simultaneously
  • the drive electrode 6 and the touch sensing electrode 9 are referred to the mark of Fig. 3, and the mark is not repeated in the following embodiments.
  • Each common electrode 7 is a strip electrode, and the common electrode 7 and the touch driving sub-electrode 61 are insulated from each other, and each touch driving of the touch driving electrode 6 is used.
  • the sub-electrode 61 is electrically connected to the at least one common electrode signal line 4 through the first via hole 10, and the common electrode 7 and the common electrode signal line 4 to which the touch driving electrode 6 is not connected pass through the second via hole. 11 electrical connection.
  • the touch driving line TX is composed of a touch driving electrode 6 and a common electrode signal line connected thereto.
  • the touch sensing line RX is composed of a touch sensing electrode 9 (ie, at least one first wire 8), and the touch sensing electrode 9 is The positions of the common electrodes 7 correspond (for example, their projections on the substrate at least partially overlap).
  • the strip-shaped common electrode 7 is easy to implement, which simplifies the design.
  • the touch driving sub-electrode 61 constituting the touch driving electrode 6 does not overlap the touch sensing electrode 9, but only
  • the common electrode signal line 4 connected to the touch driving sub-electrode 61 overlaps with the touch sensing electrode 9 to form a d-shaped orthogonal charging capacitor between the touch driving electrode 6 and the touch sensing electrode 9
  • the electric field is projected to ensure the realization of the touch function.
  • the plurality of touch driving sub-electrodes 61 disposed in the same direction are electrically connected together through the common electrode signal lines to form the touch driving electrodes 6. Therefore, the touch driving electrodes 6 are in the row direction as a whole. extend.
  • Each common electrode 7 includes a plurality of common sub-electrodes 71, and each common electrode 7 includes a plurality of common sub-electrodes 71 and a column of touch.
  • Driving the sub-electrode 61 - correspondingly; the touch driving sub-electrode 61 of the touch driving electrode 6 and the at least one common electrode signal line 4 are electrically connected through the first via 10, and the common sub-electrode 71 with the touch driving electrode
  • the common electrode signal line 4 to which the touch driving electrodes 6 are not connected is electrically connected through the second via holes 11.
  • the touch driving line TX is composed of a touch driving electrode 6 and a common electrode signal line connected thereto, and the touch sensing line RX is composed of a touch sensing power 9 (ie, at least one first wire 8), and the touch sensing electrode 9 is The position of the common electrode 7 corresponds.
  • the touch driving sub-electrode 61 constituting the touch driving electrode 6 does not overlap the touch sensing electrode 9 , but only the common electrode signal line 4 and the touch sensing electrode connected to the touch driving sub-electrode 61 .
  • the overlap of the two forms a small orthogonal capacitance between the touch driving electrode 6 and the touch sensing electrode 9 to facilitate electric field projection, thereby ensuring the realization of the touch function.
  • Each common electrode 7 includes a plurality of common sub-electrodes 71, and each common electrode 7 includes a plurality of common sub-electrodes 71 and a column of touch driving.
  • the sub-electrode 61 - corresponding to each of the touch driving sub-electrode 61 and the common sub-electrode 71 on the row of the touch driving electrode 6 are electrically connected to the at least one common electrode signal line 4 through the first via 10 connection.
  • the touch driving line TX is composed of a touch driving electrode 6 and a common electrode signal line connected thereto, and the touch sensing line RX is composed of a touch sensing power 9 (ie, at least one first wire 8), and the touch sensing electrode 9 is The position of the common electrode 7 corresponds.
  • the beneficial effects of the embodiments of the present invention are as follows: The touch driving electrode and the touch sensing electrode are respectively disposed on the common electrode layer and the pixel electrode layer. Therefore, on the basis of the existing TFT array substrate preparation process, the additional manufacturing process is not required.
  • the array substrate with touch function is prepared, and the array substrate is combined with the display component to form an in-line touch screen, which has simple preparation process, reduces production cost and improves production efficiency; at the same time, the touch sensing electrode and the touch driving electrode are incomplete Orthogonal, so that a small orthogonal capacitance is formed between the two, so that a small orthogonal capacitance is formed between the touch sensing electrode and the touch driving electrode, which contributes to electric field projection, thereby ensuring touch.
  • Embodiments of the present invention provide a capacitive in-cell touch panel including two substrates of a pair of boxes and a liquid crystal disposed therebetween, and one of the two substrates is an array substrate provided by the above embodiments.
  • the other pair of the cassette substrates may be a color filter substrate.
  • the embodiment of the invention provides a touch display device comprising the capacitive in-cell touch screen provided by the embodiment described above.
  • the touch driving line is composed of a common electrode group and a common electrode signal line, and the touch sensing line is firstly disposed in the same layer as the pixel electrode.
  • the array substrate with touch function can be prepared without additional manufacturing process, and the array substrate and the display component can be combined to form an in-line touch screen, and the preparation process is simple. Reduce production costs and increase production efficiency.

Abstract

一种阵列基板、电容式内嵌触摸屏和触控显示装置。阵列基板（1）的公共电极层（20）包括多个触控驱动电极（6）和多个公共电极（7）。各触控驱动电极（6）沿行方向延伸，各公共电极（7）沿列方向延伸。像素电极层（30）包括多条第一导线（8），各第一导线（8）在阵列基板（1）上的投影位于公共电极（7）所在区域内，且与投影位于公共电极（7）所在区域内的数据线（5）至少部分重叠，投影位于同一公共电极（7）所在区域内的多条第一导线（8）构成一触控驱动电极（6）。由于触控驱动电极（6）和触控感应电极（9）分别设置于公共电极层（20）和像素电极层（30），制备时不需要增加额外的制作工艺即可制备具有触控功能的阵列基板（1），制备工艺简单，降低了生产成本并提高了生产效率。

Description

阵列基板、 电容式触摸屏和触控显示装置 技术领域
本发明的实施例涉及一种阵列基板、电容式内嵌触摸屏和触控显示装置。 背景技术
触摸屏按照组成结构可以分为： 外挂式触摸屏 （Add on Mode Touch Panel )、 覆盖表面式触摸屏（ On Cell Touch Panel ) 、 以及内嵌式触摸屏 ( In Cell Touch Panel ) 。 外挂式触摸屏是将触摸屏与液晶显示屏（ Liquid Crystal Display, LCD )分开生产， 然后贴合到一起成为具有触摸功能的液晶显示屏， 外挂式触摸屏制作成本较高、 光透过率较低、 模组较厚； 覆盖表面式触摸屏 同样存在模组较厚的问题。 而电容式内嵌式触摸屏将触摸屏的触控驱动电极 内嵌在液晶显示屏内部， 由于其将触摸感应电路在盒内实现， 相对其他的触 摸屏实现方式可以将模组做得更薄、 更轻且更加节省成本。
目前， 现有的电容式内嵌触摸屏是在现有的薄膜场效应晶体管 （Thin Film Transistor, TFT ) 阵列基板上直接增加额外的触控扫描线和触控感应线 实现的，即在 TFT阵列基板的表面制作两层相互异面相交的条状铟锡金属氧 化物（Indium Tin Oxides, ITO )电极， 这两层 ΙΤΟ电极分别作为触摸屏的触 控驱动线和触控感应线， 在两条 ΙΤΟ电极的异面相交处形成互电容； 或者以 阵列基板上的部分公共电极作为触控驱动线， 在彩膜基板上增加额外的触控 感应线。
以上制备工艺， 在制备用于电容式内嵌触摸屏的 TFT阵列基板时， 制备 成本高且生产效率低， 也意味着增加了电容式内嵌触摸屏的制备成本及制备 难度。 发明内容
根据本发明的一个实施例提供一种阵列基板， 包括：
基板， 所述基板上形成有呈矩阵排列的多个像素单元、 公共电极层和像 素电极层， 行方向设置有栅极信号线和公共电极信号线， 相邻的两列所述像 素单元之间设置有一条数据线；
所述公共电极层包括多个触控驱动电极和多个公共电极， 且各所述触控 驱动电极沿行方向延伸， 各所述公共电极沿列方向延伸； 在一帧画面的显示 时间内，各所述触控驱动电极用于分时的传递触控扫描信号和公共电极信号； 所述像素电极层包括多条第一导线，各所述第一导线在所述 TFT阵列基 板上的投影位于所述公共电极所在区域内， 且与投影位于所述公共电极所在 区域内的所述数据线至少部分重叠， 投影位于同一所述公共电极所在区域内 的多条所述第一导线构成一触控感应电极。
在一个示例中， 每一所述触控驱动电极包括多个同行设置的触控驱动子 电极， 各所述触控驱动子电极位于相邻的所述公共电极之间。
在一个示例中， 所述触控驱动电极的各所述触控驱动子电极与至少一条 公共电极信号线通过第一过孔电连接。
在一个示例中， 各所述公共电极为条状电极， 所述公共电极与所述触控 驱动子电极彼此绝缘。
在一个示例中， 所述公共电极与未连接所述触控驱动电极的所述公共电 极信号线通过第二过孔电连接。
在一个示例中， 每一所述公共电极包括多个所述公共子电极， 且每一所 述公共电极包括的多个所述公共子电极与一列所述触控驱动子电极——对 应。
在一个示例中， 所述触控驱动电极的各所述触控驱动子电极与至少一条 公共电极信号线通过第一过孔电连接， 与所述触控驱动电极同行的所述公共 子电极与未连接所述触控驱动电极的所述公共电极信号线通过第二过孔电连 接。
在一个示例中， 所述触控驱动电极的各所述触控驱动子电极、 所述触控 驱动电极所在行上的所述公共子电极均与至少一条公共电极信号线通过第一 过孔电连接。
在一个示例中， 以每相邻的两行像素单元为一个像素单元组， 每一所述 像素单元组的两行所述像素单元之间设置有两条所述栅极信号线， 该两条栅 极信号线分别为一行所述像素单元提供栅极扫描信号， 每相邻的两个所述像 素单元组之间设置一条所述公共电极信号线。 根据本发明的另一个实施例提供一种电容式触摸屏， 包括对盒的两个基 板及所述两个基板之间设置的液晶， 其中所述两个基板之一为根据上述实施 例的阵列基板。
根据本发明的再一个实施例提供一种触控显示装置， 包括根据上述实施 例的电容式触摸屏。 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 简单地介绍，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为本发明实施例提供的阵列基板的局部俯视图；
图 2为本发明实施例提供的阵列基板的局部剖面示意图；
图 3 为本发明实施例提供的触控驱动电极与触控感应电极的结构示意 图；
图 4为本发明实施例提供的第一种阵列基板的结构示意图；
图 5为本发明实施例提供的第二种阵列基板的结构示意图；
图 6为本发明实施例提供的第三种阵列基板的结构示意图。 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。
参见图 1， 本发明实施例提供一种阵列基板， 包括基板 1，基板 1上形成 有呈矩阵排列的多个像素单元 2， 行方向设置有栅极信号线 3和公共电极信 号线 4， 相邻的两列像素单元 2之间设置有一条数据线 5。
参见图 2所示， 还包括公共电极层 20和像素电极层 30。
结合图 1和图 2， 参见图 3所示， 公共电极层 20包括多个触控驱动电极 6和多个公共电极 7，触控驱动电极 6和公共电极 7交叉设置，且各触控驱动 电极 6沿像素单元 2的行方向延伸， 各公共电极 7沿像素单元 2的列方向延 伸； 在一帧画面的显示时间内， 各触控驱动电极 6用于分时的传递触控扫描 信号和公共电极信号。
像素电极层 30包括多条第一导线 8，各第一导线 8在基板 1上的投影位 于公共电极 7所在区域内， 且与投影位于该公共电极 7所在区域内的数据线 5位置正对， 投影位于同一公共电极 7所在区域内的多条第一导线 8构成一 触控感应电极 9。
栅极信号线 3和公共电极线 4可以根据设计需要设置， 如单栅结构或双 栅结构。 本实施例所指出的双栅结构如下： 以每相邻的两行像素单元 2为一 个像素单元 2组， 每一像素单元 2组的两行像素单元 2之间设置有两条栅极 信号线 3， 该两条栅极信号线 3分别为一行像素单元 2提供栅极扫描信号， 每相邻的两个像素单元 2组之间设置一条公共电极信号线 4。需要说明的是， 以上举例只是为了说明， 本发明不限于此。
本实施例中， 由于第一导线 8的投影与数据线 5的位置正对， 因此不会 影响像素结构和像素开口率， 并充分利用制备像素电极的 ITO， 降低了制备 工序和生产成本；
优选的， 每一触控驱动电极 6包括多个同行设置的触控驱动子电极 61， 各触控驱动子电极 61位于相邻的公共电极 7之间。由于触控驱动电极 6与触 控感应电极 9交叉， 为了保证二者不接触， 因此有必要令二者之一在公共电 极层 20的部分为不连续的结构。
需要说明的是， 触控驱动电极 6和公共电极 7的大小和形状可以根据实 际设计需要或生产工艺的要求进行调整。 有如下详细说明：
为了便于理解， 以 ΤΧ表示触控驱动线， 以 RX表示触控感应线， 触控 驱动电极 6为触控驱动线 ΤΧ的一部分， 触控感应电极 9为触控感应线 RX 一部分， 同时触控驱动电极 6和触控感应电极 9参考图 3的标记， 在下述实 施例中不再重复标记。
例如， 参见图 4， 示出的第一种阵列基板的结构示意图， 各公共电极 7 为条状电极， 公共电极 7与触控驱动子电极 61彼此绝缘， 触控驱动电极 6 的各触控驱动子电极 61与至少一条公共电极信号线 4通过第一过孔 10电连 接， 公共电极 7与未连接触控驱动电极 6的公共电极信号线 4通过第二过孔 11电连接。 触控驱动线 TX由触控驱动电极 6和与之连接的公共电极信号线 构成， 触控感应线 RX由触控感应电极 9 (即至少一条第一导线 8 )构成， 触 控感应电极 9与公共电极 7的位置对应 （例如， 它们在基板上的投影至少部 分重叠） 。 本实施例中， 条状的公共电极 7易于实现， 便于简化设计； 同时 该结构中， 构成触控驱动电极 6的触控驱动子电极 61 不与触控感应电极 9 交叠，而仅仅是与触控驱动子电极 61连接的公共电极信号线 4与触控感应电 极 9交叠， 使得触控驱动电极 6和触控感应电极 9之间形成较 d、的正交辆合 电容， 有助于电场投射， 从而确保触控功能的实现。
如图 4所示，同行设置的多个触控驱动子电极 61通过公共电极信号线电 连接在一起以形成触控驱动电极 6， 因此， 从整体上来看， 触控驱动电极 6 是沿行方向延伸。
又例如， 参见图 5， 示出的第二种阵列基板的结构示意图， 每一公共电 极 7包括多个公共子电极 71， 且每一公共电极 7包括的多个公共子电极 71 与一列触控驱动子电极 61——对应； 触控驱动电极 6的各触控驱动子电极 61与至少一条公共电极信号线 4通过第一过孔 10电连接， 与触控驱动电极 同行的公共子电极 71与未连接触控驱动电极 6的公共电极信号线 4通过第二 过孔 11电连接。触控驱动线 TX由触控驱动电极 6和与之连接的公共电极信 号线构成， 触控感应线 RX由触控感应电 9 (即至少一条第一导线 8 )构成， 触控感应电极 9与公共电极 7的位置对应。 本实施例中， 构成触控驱动电极 6的触控驱动子电极 61不与触控感应电极 9交叠，而仅仅是与触控驱动子电 极 61连接的公共电极信号线 4与触控感应电极 9交叠，使得触控驱动电极 6 和触控感应电极 9之间形成较小的正交辆合电容， 有助于电场投射， 从而确 保触控功能的实现。
例如， 参见图 6， 示出的第三种阵列基板的结构示意图，每一公共电极 7 包括多个公共子电极 71， 且每一公共电极 7包括的多个公共子电极 71与一 列触控驱动子电极 61——对应； 触控驱动电极 6的各触控驱动子电极 61、 触控驱动电极 6所在行上的公共子电极 71 均与至少一条公共电极信号线 4 通过第一过孔 10电连接。触控驱动线 TX由触控驱动电极 6和与之连接的公 共电极信号线构成，触控感应线 RX由触控感应电 9(即至少一条第一导线 8 ) 构成， 触控感应电极 9与公共电极 7的位置对应。 本发明实施例有益效果如下： 触控驱动电极和触控感应电极分别设置于 公共电极层和像素电极层， 因此， 在现有 TFT阵列基板制备工艺的基础上， 不需要额外增加制作工艺即可制备具有触控功能的阵列基板， 该阵列基板与 显示部件结合即可形成内嵌触摸屏， 制备工艺简单， 降低了生产成本并提高 了生产效率； 同时， 触控感应电极与触控驱动电极非完全正交， 使得二者之 间形成较小的正交辆合电容， 使得触控感应电极和触控驱动电极之间形成较 小的正交辆合电容， 有助于电场投射， 从而确保触控功能的实现。
本发明实施例提供一种电容式内嵌触摸屏， 包括对盒的两个基板及之间 设置的液晶， 所述两个基板之一为如上所述实施例提供的阵列基板。 本实施 例中， 另一对盒基板可以为彩膜基板。
本发明实施例提供一种触控显示装置， 包括如上所述实施例提供的电容 式内嵌触摸屏。
本发明实施例有益效果如下： 电容式内嵌触摸屏所应用的 TFT阵列基板 上， 触控驱动线由公共电极组和公共电极信号线构成， 触控感应线由与像素 电极同层设置的第一导线构成， 在现有 TFT阵列基板制备工艺的基础上， 不 需要额外增加制作工艺即可制备具有触控功能的阵列基板， 该阵列基板与显 示部件结合即可形成内嵌触摸屏， 制备工艺简单， 降低了生产成本并提高了 生产效率。
以上所述仅是本发明的示范性实施方式， 而非用于限制本发明的保护范 围， 本发明的保护范围由所附的权利要求确定。

Claims

权利要求书
1、 一种阵列基板， 包括：
基板， 所述基板上形成有呈矩阵排列的多个像素单元、 公共电极层和像 素电极层， 行方向设置有栅极信号线和公共电极信号线， 相邻的两列所述像 素单元之间设置有一条数据线；
所述公共电极层包括多个触控驱动电极和多个公共电极， 且各所述触控 驱动电极沿行方向延伸， 各所述公共电极沿列方向延伸； 在一帧画面的显示 时间内，各所述触控驱动电极用于分时的传递触控扫描信号和公共电极信号； 所述像素电极层包括多条第一导线，各所述第一导线在所述 TFT阵列基 板上的投影位于所述公共电极所在区域内， 且与投影位于所述公共电极所在 区域内的所述数据线至少部分重叠， 投影位于同一所述公共电极所在区域内 的多条所述第一导线构成一触控感应电极。
2、如权利要求 1所述的阵列基板， 其中，每一所述触控驱动电极包括多 个同行设置的触控驱动子电极， 各所述触控驱动子电极位于相邻的所述公共 电极之间。
3、如权利要求 2所述的阵列基板，所述触控驱动电极的各所述触控驱动 子电极与至少一条公共电极信号线通过第一过孔电连接。
4、 如权利要求 1-3中任一项所述的阵列基板， 其中， 各所述公共电极为 条状电极， 所述公共电极与所述触控驱动子电极彼此绝缘。
5、如权利要求 3所述的阵列基板， 其中， 所述公共电极与未连接所述触 控驱动电极的所述公共电极信号线通过第二过孔电连接。
6、如权利要求 2所述的阵列基板， 其中，每一所述公共电极包括多个所 述公共子电极， 且每一所述公共电极包括的多个所述公共子电极与一列所述 触控驱动子电极——对应。
7、如权利要求 6所述的阵列基板， 其中， 所述触控驱动电极的各所述触 控驱动子电极与至少一条公共电极信号线通过第一过孔电连接， 与所述触控 驱动电极同行的所述公共子电极与未连接所述触控驱动电极的所述公共电极 信号线通过第二过孔电连接。
8、如权利要求 6所述的阵列基板， 其中， 所述触控驱动电极的各所述触 控驱动子电极、 所述触控驱动电极所在行上的所述公共子电极均与至少一条 公共电极信号线通过第一过孔电连接。
9、 如权利要求 1-8任一项所述的阵列基板， 其中， 以每相邻的两行像素 单元为一个像素单元组， 每一所述像素单元组的两行所述像素单元之间设置 有两条所述栅极信号线， 该两条栅极信号线分别为一行所述像素单元提供栅 极扫描信号， 每相邻的两个所述像素单元组之间设置一条所述公共电极信号 线。
10、 一种电容式触摸屏， 包括对盒的两个基板及所述两个基板之间设置 的液晶， 其中所述两个基板之一为权利要求 1-9任一项所述的阵列基板。
11、 一种触控显示装置， 包括如权利要求 10所述的电容式触摸屏。
PCT/CN2014/075979 2014-01-09 2014-04-22 阵列基板、电容式触摸屏和触控显示装置 WO2015103824A1 (zh)

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