WO2015180347A1 - 一种阵列基板及其制备方法、内嵌式触摸屏及显示装置 - Google Patents

一种阵列基板及其制备方法、内嵌式触摸屏及显示装置 Download PDF

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WO2015180347A1
WO2015180347A1 PCT/CN2014/087809 CN2014087809W WO2015180347A1 WO 2015180347 A1 WO2015180347 A1 WO 2015180347A1 CN 2014087809 W CN2014087809 W CN 2014087809W WO 2015180347 A1 WO2015180347 A1 WO 2015180347A1
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touch driving
electrodes
array substrate
electrode
touch
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PCT/CN2014/087809
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English (en)
French (fr)
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刘英明
董学
王海生
丁小梁
杨盛际
赵卫杰
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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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Publication of WO2015180347A1 publication Critical patent/WO2015180347A1/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

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  • the present disclosure relates to the field of display technologies, and in particular, to an array substrate and a method for fabricating the same, an in-cell touch panel, and a display device.
  • the Touch Screen Panel With the rapid development of display technology, the Touch Screen Panel has gradually spread throughout people's lives.
  • the touch screen can be divided into an add-on touch panel, an on-cell touch panel, and an in-cell touch panel according to the composition structure.
  • the external touch screen is produced by separately separating the touch screen from the liquid crystal display (LCD), and then being bonded together to become a liquid crystal display with touch function.
  • the external touch screen has higher production cost and light transmittance. Low, thicker modules and other shortcomings.
  • the in-cell touch screen embeds the touch electrode of the touch screen inside the liquid crystal display, which can reduce the overall thickness of the module, and can greatly reduce the manufacturing cost of the touch screen, and is favored by major panel manufacturers.
  • the liquid crystal display technology capable of achieving a wide viewing angle mainly includes an in-plane switch (IPS, In-Plane Switch) technology and an advanced super-dimension switch (ADS) technology; among them, the ADS technology passes through the same in-plane slit.
  • the electric field generated by the edge of the electrode and the electric field generated between the slit electrode layer and the plate electrode layer form a multi-dimensional electric field, so that all the aligned liquid crystal molecules between the slit electrodes in the liquid crystal cell and directly above the electrode can be rotated, thereby improving the liquid crystal operation.
  • Efficiency and increased light transmission efficiency Advanced super-dimensional field conversion technology can improve the picture quality of TFT-LCD products, with high resolution, high transmittance, low power consumption, wide viewing angle, high aperture ratio, low chromatic aberration, push mura, etc. advantage.
  • the in-cell touch screen structure proposed based on ADS technology is the whole surface of the array substrate.
  • the common electrode layer is divided to form a touch driving electrode and a common electrode which are insulated and intersect with each other, and a touch sensing electrode corresponding to a region where the common electrode is located is disposed on the opposite substrate; and the touch driving electrode is time-divisionally driven To achieve touch and display functions.
  • each common electrode 01 is a strip electrode; each touch driving electrode is composed of a plurality of touch driving sub-electrodes 021 arranged in the same column.
  • the touch driving sub-electrodes 021 are located between the adjacent common electrodes 01.
  • the touch driving sub-electrodes 021 belonging to the same touch driving electrode are connected to the horizontal touch driving signal line 031, and the horizontal touch driving signal lines are arranged by the vertical touch driving signal lines 032 disposed in the non-display area.
  • the 031 are connected together to connect the plurality of touch driving sub-electrodes 021 belonging to the same touch driving electrode in series.
  • the common electrode signal needs to be simultaneously loaded to the common electrode 01 and the touch driving electrode.
  • the resistance of the touch driving electrode is large, thereby making the touch driving electrode and
  • the signal transmission load of the common electrode 01 is inconsistent, which causes the transmission speed of the common signal at the common electrode 01 and the touch driving electrode to be inconsistent, resulting in uneven display screen and affecting picture quality.
  • the touch driving signal line set on one side is modified to a bilateral setting, the influence on the signal transmission load is not large, and it is difficult to implement a narrow border.
  • the present disclosure provides an array substrate, a method for fabricating the same, a display panel, and a display device, which are used to solve the problem of uneven display and inconsistent display caused by inconsistent load of the touch driving electrode and the common electrode in the existing in-cell touch panel.
  • the problem of narrow borders are used to solve the problem of uneven display and inconsistent display caused by inconsistent load of the touch driving electrode and the common electrode in the existing in-cell touch panel. The problem of narrow borders.
  • the present disclosure provides an array substrate, wherein the common electrode layer of the array substrate includes a plurality of touch driving electrodes and a plurality of common electrodes insulated from each other, and the touch driving electrodes cross the common electrodes
  • the touch driving driving electrode includes a plurality of touch driving sub-electrodes disposed along an extending direction of the touch driving electrodes, and each of the touch driving sub-electrodes is located between the adjacent common electrodes;
  • the array substrate further includes:
  • Each of the touch driving sub-electrodes of the same touch driving electrode is electrically connected through at least one of the touch driving electrode strings, and the touch driving electrode string is located in a display area of the array substrate.
  • the extending direction thereof is consistent with the extending direction of the touch driving electrode.
  • a plurality of pixel units arranged in a matrix are formed on the array substrate;
  • Each of the touch driving electrodes extends in a column direction of the pixel unit, and each of the common electrodes extends along a row direction of the pixel unit.
  • a plurality of pixel units arranged in a matrix are formed on the array substrate;
  • Each of the touch driving electrodes extends in a row direction of the pixel unit, and each of the common electrodes extends along a column direction of the pixel unit.
  • each of the touch driving electrode strings is disposed by a plurality of transparent conductive lines disposed along a direction of extending of the touch driving electrodes of the pixel electrode layer of the array substrate, and the array substrate A source/drain metal connection line of the source/drain metal layer, wherein a plurality of transparent conductive lines disposed along an extending direction of the touch driving electrode are connected in series through the source/drain metal connection line.
  • the transparent conductive line is electrically connected to the source/drain metal connection line through a via.
  • the source/drain metal layer further includes: a plurality of sub data lines disposed along an extending direction of the data line, the plurality of sub data lines passing through an extension of the gate metal layer of the array substrate along the data line
  • the gate metal connecting wires arranged in the direction are connected in series.
  • the array substrate further includes:
  • common electrode string wherein the common electrode string is connected in parallel with the common electrode, and the common electrode string is located in a display area of the array substrate.
  • the extending direction of the common electrode string line is consistent with the extending direction of the touch driving electrode string, and the number of the common electrode string lines is smaller than the number of the touch driving electrode string lines.
  • the present disclosure further provides an in-cell touch panel including the array substrate and a counter substrate opposite to the array substrate, wherein the opposite substrate has a plurality of touch sensing electrodes.
  • an orthographic projection of each of the touch sensing electrodes on the array substrate is located in a region where the common electrode is located.
  • the opposite substrate has a black matrix disposed on the base substrate, and the touch sensing electrode is located between the base substrate and the black matrix or on the black matrix.
  • the present disclosure also provides a display device including the above-described in-cell touch panel.
  • the present disclosure also provides a method for preparing an array substrate, comprising the following steps:
  • Step 1 forming a gate metal layer, the gate metal layer includes: a plurality of gate lines arranged in parallel and a plurality of gate metal connection lines disposed between adjacent gate lines along an extending direction of the data lines;
  • Step 2 forming a gate insulating layer and forming via holes at positions of corresponding gate metal connecting lines of the gate insulating layer;
  • Step 3 forming an active layer
  • Step 4 forming a source/drain metal layer, the source/drain metal layer includes: a plurality of sub data lines and a plurality of source/drain metal connection lines disposed along an extending direction of the data line, the sub data lines and the source and drain metal a plurality of the sub-data lines belonging to the same data line are electrically connected to the gate metal connection line through the via holes of the gate insulating layer to form a completed data line;
  • Step 5 forming a first protective layer, and forming a via hole at a position of the corresponding source-drain metal connection line of the first protective layer;
  • Step 6 forming a pixel electrode layer, the pixel electrode layer includes: a pixel electrode and a plurality of transparent conductive lines facing the position of the data line, and the plurality of transparent conductive lines in the same column pass through the via and the source on the first protective layer
  • the drain metal connection lines are connected to form a touch drive electrode string;
  • Step 7 forming a second protective layer and forming via holes at corresponding transparent conductive lines of the second protective layer;
  • Step 8 forming a common electrode layer, the common electrode layer includes: a plurality of touch driving electrodes and a plurality of common electrodes insulated from each other, wherein the touch driving electrodes are disposed to intersect with the common electrode; and the touch driving electrode
  • the plurality of touch driving sub-electrodes are disposed along the extending direction of the touch driving electrodes, and each of the touch driving sub-electrodes is located between the adjacent common electrodes, and belongs to the same touch driving electrode.
  • the touch driving sub-electrode is electrically connected to the touch driving electrode string through a via hole on the second protective layer.
  • the touch driving electrode composed of the plurality of touch driving sub-electrodes is electrically connected to the touch driving electrode string, thereby reducing the signal transmission load of the touch driving electrode and the signal of the common electrode.
  • the transmission load is relatively close.
  • the touch drive electrode string is disposed in the non-display area of the array substrate, which is advantageous for the realization of the narrow bezel.
  • FIG. 1 is a schematic structural view of an array substrate in the prior art
  • FIG. 3 is a schematic structural view of an array substrate according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic structural diagram of a touch driving electrode string according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic cross-sectional structural view of an array substrate according to an embodiment of the present disclosure.
  • FIG. 6 is another schematic structural diagram of an array substrate according to an embodiment of the present disclosure.
  • FIG. 7 is still another schematic structural diagram of an array substrate according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic flow chart of a method for fabricating an array substrate according to an embodiment of the present disclosure.
  • FIG. 3 is a schematic structural diagram of an array substrate according to an embodiment of the present disclosure.
  • the common electrode layer of the array substrate includes a plurality of touch driving electrodes 110 and a plurality of common electrodes 120 insulated from each other.
  • the touch driving driving electrode 110 includes a plurality of touch driving sub-electrodes 111 disposed along an extending direction of the touch driving electrode 110, and each of the touch driving sub-electrodes 111 is located between adjacent common electrodes 120.
  • the common electrode layer connected to the entire surface of the array substrate is divided to form a plurality of touch driving electrodes 110 and a plurality of common electrodes 120 which are insulated and intersect with each other.
  • Time-division driving of the touch driving electrodes to implement touch function and display function When the touch function needs to be implemented, the touch scan signal is loaded to the touch drive electrode.
  • the common electrode signal is simultaneously applied to the common electrode 120 and the touch driving electrode 110.
  • the array substrate of the embodiment of the present disclosure further includes:
  • Each of the touch driving sub-electrodes 111 of the same touch driving electrode 110 is electrically connected by at least one of the touch driving electrode strings 130, and the touch driving electrode string 130 is located in the array.
  • the display area of the substrate has an extending direction that coincides with an extending direction of the touch driving electrode 110.
  • the touch driving power composed of the plurality of touch driving sub-electrodes 111 is provided by the embodiment of the present disclosure.
  • the pole 110 is electrically connected to the touch driving electrode string 130. Therefore, the signal transmission load of the touch driving electrode 110 can be reduced to be relatively close to the signal transmission load of the common electrode 120.
  • the common signal is at the common electrode 120 and touched.
  • the transmission speed of the control driving electrode 110 is also relatively close, which can avoid the problem of uneven display screen and improve the picture quality.
  • the touch drive electrode string 130 is disposed in the non-display area of the array substrate, which is advantageous for the realization of the narrow bezel.
  • the touch and display phases adopt a time-division driving manner, and on the one hand, the display driving and the touch driving chip can be integrated into one body to reduce the production cost; It can also reduce mutual interference between display and touch, and improve picture quality and touch accuracy.
  • each touch driving electrode 110 may extend along a row direction of the pixel unit; each common electrode 120 extends along a column direction of the pixel unit.
  • the wiring direction of the two devices may be changed according to the size of the application device, that is, each touch driving electrode 110 is disposed to extend along the column direction of the pixel unit, and each common electrode 120 is disposed to extend along the row direction of the pixel unit. There is no limit here.
  • each touch driving electrode string 130 when the touch driving electrode 110 extends along the row direction of the pixel unit, each touch driving electrode string 130 also extends along the row direction of the pixel unit, that is, each touch driving electrode string 130 is located in an adjacent row.
  • the touch driving electrode strings 130 also extend along the column direction of the pixel unit, that is, the touch driving electrode strings 130 are located in the phase. At the gap between adjacent pixel cells. That is, the extending direction of the touch driving electrode string 130 generally coincides with the extending direction of the touch driving electrode 110.
  • each common electrode 120 extends along the row direction of the pixel unit.
  • the touch driving electrode string 130 of the embodiment of the present disclosure may be independently disposed in a single layer. Further, in a specific implementation, the touch driving electrode string 130 may also be connected to a signal line layer (such as a pixel electrode layer, a source/drain metal) in the array substrate. The layer or the gate metal layer is disposed in the same layer; the touch driving electrode string 130 is electrically connected to the corresponding touch driving sub-electrodes 111 through at least two via holes, so that no additional preparation process is needed in preparing the array substrate.
  • the pattern of the touch drive electrode string and the signal line layer can be formed at the same time, which can save the preparation cost and increase the added value of the product.
  • the touch driving electrode string 130 When the touch driving electrode string 130 is disposed on the pixel electrode layer in the array substrate, the touch driving electrode string 130 may be strip-shaped and disposed between adjacent pixel units, facing the data line position.
  • each of the touch driving electrode strings 130 may be disposed along a direction of extending of the touch driving electrodes of the pixel electrode layers of the array substrate.
  • a plurality of transparent conductive lines 131 and a source/drain metal connection line 132 of the source/drain metal layer of the array substrate wherein a plurality of transparent conductive lines 131 disposed along an extending direction of the touch driving electrodes pass through
  • the source/drain metal connection lines 132 are connected in series, and the transparent conductive lines 131 are electrically connected to the source/drain metal connection lines 132 through the vias 133.
  • the source/drain metal connection line 132 of the source/drain metal layer is disposed along the data line extending direction, and the data line corresponding position is further provided with a plurality of sub data lines 141, and the sub data line 141 is The source/drain metal connection lines 132 are spaced apart.
  • a plurality of gate metal connection lines 142 may be disposed at corresponding positions of the data lines on the gate metal layer. A plurality of sub-data lines 141 of the same data line are connected in series through the gate metal connection lines 142 to form a complete data line.
  • the array substrate of the embodiment of the present disclosure may further include a common electrode string 150 , wherein the common electrode string 150 is electrically connected to the common electrode 120 .
  • the common electrode string 150 is disposed in the same manner as the touch driving electrode string 130. In this way, there is no need to add an additional preparation process when preparing the array substrate, and the patterns of the touch driving electrode string 130 and the common electrode string 150 can be simultaneously formed, thereby saving the manufacturing cost and increasing the added value of the product.
  • the number of the common electrode strings 150 is smaller than the number of the touch driving electrode strings 130 such that the touch driving electrodes 110 and the common electrode 120 have relatively close signal transmission loads.
  • each of the common electrode serial lines 150 may be extended by the touch driving driving electrodes of the pixel electrode layer of the array substrate.
  • a plurality of transparent conductive lines 131 and a source/drain metal connection line 132 of the source/drain metal layer of the array substrate wherein an extension along the touch driving electrode
  • a plurality of transparent conductive lines 131 disposed in the direction are connected in series through the source/drain metal connection lines 132 , and the transparent conductive lines 131 are electrically connected to the source/drain metal connection lines 132 through the vias 133 .
  • FIG. 5 is a cross-sectional structural diagram of an array substrate according to an embodiment of the present disclosure.
  • the array substrate includes:
  • the gate metal layer includes: a plurality of gate lines 160 and a gate metal connection line 142 disposed between the adjacent gate lines 160 along the extending direction of the data lines;
  • Gate insulating layer 170
  • the source/drain metal layer includes a plurality of sub data lines 141 and a plurality of source/drain metal connection lines 132 disposed along an extending direction of the data line, and the sub data lines 141 are spaced apart from the source/drain metal connection lines 132. ;
  • the pixel electrode layer includes: a pixel electrode (not shown) and a plurality of transparent conductive lines 131 disposed opposite to the data line position, and the plurality of transparent conductive lines 131 in the same column pass through the first protective layer 180
  • the via hole is connected to the source/drain metal connection line 132 to form a touch driving electrode string;
  • the common electrode layer includes: a plurality of touch driving electrodes and a plurality of common electrodes 120 insulated from each other, wherein the touch driving electrodes are disposed to intersect with the common electrode 120;
  • the plurality of touch driving sub-electrodes 111 disposed in the extending direction of the touch driving electrodes are located between the adjacent common electrodes 120.
  • the plurality of touch driving sub-electrodes 111 belonging to the same touch driving electrode are electrically connected to the touch driving electrode string through the via holes on the second protective layer 190.
  • the common electrode trace 201 and the touch may be disposed on the gate metal layer.
  • the driving electrode traces 202 are electrically connected to the common electrode 120 through the via holes, and the touch driving electrode traces 202 are electrically connected to the touch driving electrodes 110 through the via holes.
  • the embodiment of the present disclosure further provides an in-cell touch panel, comprising the array substrate in any one of the above embodiments, and the opposite substrate opposite to the array substrate, wherein the opposite substrate has multiple touch senses And an orthographic projection of each of the touch sensing electrodes on the array substrate is located in a region where the common electrode is located. That is, the position of the touch sensing electrode corresponds to the position of the common electrode, so that the facing area between the touch sensing electrode and the touch driving electrode can be avoided.
  • the opposite substrate generally has a black matrix disposed on the substrate, and the touch sensing electrode may be located between the substrate and the black matrix, or may be located in the black matrix.
  • the touch sensing electrode may be located between the substrate and the black matrix, or may be located in the black matrix.
  • the material of the touch sensing electrode can be specifically a transparent conductive oxide such as ITO or IZO, or a metal. When the touch sensing electrode is made of metal, the resistance can be effectively reduced.
  • an embodiment of the present disclosure further provides a display device, including the above-mentioned embedded touch screen provided by the embodiment of the present disclosure, which may be: a mobile phone, a tablet computer, a television, a display, a notebook computer, and a digital device. Any product or component that has a display function, such as a photo frame or a navigator.
  • a display device including the above-mentioned embedded touch screen provided by the embodiment of the present disclosure, which may be: a mobile phone, a tablet computer, a television, a display, a notebook computer, and a digital device.
  • Any product or component that has a display function such as a photo frame or a navigator.
  • an embodiment of the present disclosure further provides a method for fabricating an array substrate, including the following steps:
  • Step S201 forming a gate metal layer, the gate metal layer comprising: a plurality of parallel gate lines 160 and a plurality of gate metal connection lines 142 disposed between adjacent gate lines 160 along an extending direction of the data lines ;
  • Step S202 forming a gate insulating layer 170, and forming a via hole at a position of the corresponding gate metal connecting line 142 of the gate insulating layer;
  • Step S203 forming an active layer (not shown).
  • Step S204 forming a source/drain metal layer, the source/drain metal layer includes: a plurality of sub data lines 141 and a plurality of source/drain metal connection lines 132 disposed along an extending direction of the data lines, the sub data lines 141 and the The source-drain metal connection lines 132 are spaced apart from each other, and the plurality of the sub-data lines 141 belonging to the same data line are electrically connected to the gate metal connection line 142 through the via holes of the gate insulating layer to form a completed data line;
  • Step S205 forming a first protective layer 180, and forming a via hole at a position of the corresponding source/drain metal connection line 132 of the first protective layer 180;
  • Step S206 forming a pixel electrode layer, the pixel electrode layer comprising: a pixel electrode (not shown) And a plurality of transparent conductive lines 131 in the same row, and a plurality of transparent conductive lines 131 in the same row are connected to the source/drain metal connecting lines 132 through the vias of the first protective layer 170 to form a touch driving electrode.
  • Step S207 forming a second protective layer 190, and forming a via hole at a position of the corresponding transparent conductive line 131 of the second protective layer 190;
  • Step S208 forming a common electrode layer, the common electrode layer includes: a plurality of touch driving electrodes and a plurality of common electrodes 120 insulated from each other, wherein the touch driving electrodes are disposed to intersect with the common electrode 120;
  • the driving electrode includes a plurality of touch driving sub-electrodes 111 disposed along an extending direction of the touch driving electrodes, and each of the touch driving sub-electrodes 111 is located between the adjacent common electrodes 120.
  • the plurality of touch driving sub-electrodes 111 belonging to the same touch driving electrode are electrically connected to the touch driving electrode string through the via holes on the second protective layer 190.

Abstract

一种阵列基板及其制备方法、内嵌式触摸屏及显示装置，阵列基板的公共电极层包括相互交叉绝缘设置的多条触控驱动电极（110）和多条公共电极（120），触控驱动电极（110）包括沿着触控驱动电极（110）的延伸方向设置的多个触控驱动子电极（111），各触控驱动子电极（111）位于相邻的公共电极（120）之间；阵列基板还包括触控驱动电极串线（130），其中，属于同一触控驱动电极（110）的各触控驱动子电极（111）通过至少一条所述触控驱动电极串线（130）电连接，触控驱动电极串线（130）位于阵列基板的显示区域，其延伸方向与触控驱动电极（110）的延伸方向一致。

Description

一种阵列基板及其制备方法、内嵌式触摸屏及显示装置
相关申请的交叉引用
本申请主张在2014年5月30日在中国提交的中国专利申请号No.201410240182.X的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及显示技术领域，尤其涉及一种阵列基板及其制备方法、内嵌式触摸屏及显示装置。
背景技术
随着显示技术的飞速发展，触摸屏(Touch Screen Panel)已经逐渐遍及人们的生活中。目前，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)。其中，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，外挂式触摸屏存在制作成本较高、光透过率较低、模组较厚等缺点。而内嵌式触摸屏将触摸屏的触控电极内嵌在液晶显示屏内部，可以减薄模组整体的厚度，又可以大大降低触摸屏的制作成本，受到各大面板厂家青睐。
目前，能够实现宽视角的液晶显示技术主要有平面内开关(IPS，In-Plane Switch)技术和高级超维场开关(ADS，Advanced Super Dimension Switch)技术；其中，ADS技术通过同一平面内狭缝电极边缘所产生的电场以及狭缝电极层与板状电极层间产生的电场形成多维电场，使液晶盒内狭缝电极间、电极正上方所有取向液晶分子都能够产生旋转，从而提高了液晶工作效率并增大了透光效率。高级超维场转换技术可以提高TFT-LCD产品的画面品质，具有高分辨率、高透过率、低功耗、宽视角、高开口率、低色差、无挤压水波纹(push Mura)等优点。
目前基于ADS技术提出的内嵌式触摸屏结构是将阵列基板中整面的公 共电极层进行分割，形成相互绝缘且交叉而置的触控驱动电极和公共电极，并在对向基板上设置与公共电极所在区域对应的触控感应电极；对触控驱动电极进行分时驱动，以实现触控功能和显示功能。
上述内嵌式触摸屏结构中，公共电极层分割后的示意图如图1所示，各公共电极01为条状电极；每个触控驱动电极由多个同列设置的触控驱动子电极021组成，且各触控驱动子电极021位于相邻的公共电极01之间。属于同一触控驱动电极的各触控驱动子电极021与横向的触控驱动信号线031连接，并由设置在非显示区域的纵向的触控驱动信号线032将各横向的触控驱动信号线031连接在一起，从而将属于同一触控驱动电极的多个触控驱动子电极021串联起来。在实现显示功能时，需要向公共电极01和触控驱动电极同时加载公共电极信号，但是由于上述触控驱动电极的串联方式，使得触控驱动电极的电阻较大，从而使得触控驱动电极和公共电极01的信号传输负载(loading)不一致，这会导致公共信号在公共电极01和触控驱动电极的传输速度不一致，造成显示画面不均匀，影响画面品质。如图2所示，即使将单边设置的触控驱动信号线修改为双边设置，对信号传输负载的影响也不是很大，且很难实现窄边框。
发明内容
有鉴于此，本公开提供一种阵列基板及其制备方法、显示面板及显示装置，用以解决现有的内嵌式触摸屏中触控驱动电极和公共电极负载不一致导致的显示不均匀及难以实现窄边框的问题。
为解决上述技术问题，本公开提供一种阵列基板，所述阵列基板的公共电极层包括相互绝缘的多条触控驱动电极和多条公共电极，所述触控驱动电极与所述公共电极交叉设置；所述触控驱动电极包括沿着所述触控驱动电极的延伸方向设置的多个触控驱动子电极，各所述触控驱动子电极位于相邻的所述公共电极之间；所述阵列基板还包括：
触控驱动电极串线，其中，属于同一触控驱动电极的各触控驱动子电极通过至少一条所述触控驱动电极串线电连接，所述触控驱动电极串线位于所述阵列基板的显示区域，其延伸方向与所述触控驱动电极的延伸方向一致。
可选地，所述阵列基板上形成有呈矩阵排列的多个像素单元；
各所述触控驱动电极沿像素单元的列方向延伸，各公共电极沿着像素单元的行方向延伸。
可选地，所述阵列基板上形成有呈矩阵排列的多个像素单元；
各所述触控驱动电极沿像素单元的行方向延伸，各公共电极沿着像素单元的列方向延伸。
可选地，每一所述触控驱动电极串线由位于所述阵列基板的像素电极层的沿着所述触控驱动电极的延伸方向设置的多个透明导电线，以及位于所述阵列基板的源漏金属层的源漏金属连接线组成，其中，沿着所述触控驱动电极的延伸方向设置的多个透明导电线通过所述源漏金属连接线串联。
可选地，所述透明导电线通过过孔与所述源漏金属连接线电性连接。
可选地，所述源漏金属层还包括：沿着数据线的延伸方向设置的多个子数据线，所述多个子数据线通过位于所述阵列基板的栅金属层的沿着数据线的延伸方向设置的栅金属连接线串联。
可选地，所述阵列基板还包括：
公共电极串线，其中，所述公共电极串线与所述公共电极并联，所述公共电极串线位于所述阵列基板的显示区域。
可选地，所述公共电极串线的延伸方向与所述触控驱动电极串线的延伸方向一致，所述公共电极串线的数量小于所述触控驱动电极串线的数量。
本公开还提供一种内嵌式触摸屏，包括上述阵列基板及与所述阵列基板相对而置的对向基板，所述对向基板具有多条触控感应电极。
可选地，各所述触控感应电极在所述阵列基板上的正投影位于所述公共电极所在区域内。
可选地，所述对向基板具有设置在衬底基板上的黑矩阵，所述触控感应电极位于所述衬底基板与所述黑矩阵之间，或者位于所述黑矩阵之上。
本公开还提供一种显示装置，包括上述内嵌式触摸屏。
本公开还提供一种阵列基板的制备方法，包括以下步骤：
步骤1：形成栅金属层，所述栅金属层包括：多条平行设置的栅线及位于相邻的栅线之间的沿着数据线的延伸方向设置的多条栅金属连接线；
步骤2：形成栅绝缘层，并在栅绝缘层的对应栅金属连接线的位置形成过孔；
步骤3：形成有源层；
步骤4：形成源漏金属层，所述源漏金属层包括：沿着数据线的延伸方向设置的多个子数据线及多个源漏金属连接线，所述子数据线与所述源漏金属连接线间隔设置，属于同一条数据线的多个所述子数据线通过所述栅绝缘层的过孔与所述栅金属连接线电性连接，形成完成的数据线；
步骤5：形成第一保护层，并在第一保护层的对应源漏金属连接线的位置形成过孔；
步骤6：形成像素电极层，所述像素电极层包括：像素电极及正对数据线位置的多个透明导电线，位于同一列的多个透明导电线通过第一保护层上的过孔与源漏金属连接线连接，形成触控驱动电极串线；
步骤7：形成第二保护层，并在第二保护层的对应透明导电线位置形成过孔；
步骤8：形成公共电极层，所述公共电极层包括：相互绝缘的多条触控驱动电极和多条公共电极，所述触控驱动电极与所述公共电极交叉设置；所述触控驱动电极包括沿着所述触控驱动电极的延伸方向设置的多个触控驱动子电极，各所述触控驱动子电极位于相邻的所述公共电极之间，属于同一触控驱动电极的多个触控驱动子电极通过第二保护层上的过孔与触控驱动电极串线电连接。
本公开的上述技术方案的有益效果如下：
由于本公开实施例提供的由多个触控驱动子电极组成的触控驱动电极与触控驱动电极串线电连接，因而，可以降低触控驱动电极的信号传输负载，使其与公共电极的信号传输负载相对接近，在显示阶段公共信号在公共电极和触控驱动电极的传输速度也相对接近，可以避免显示画面不均匀的问题，改善画面品质。并且，将触摸驱动电极串线设置在阵列基板的非显示区域，有利于窄边框的实现。
附图说明
图1为现有技术中的阵列基板的一结构示意图；
图2为现有技术中的阵列基板的另一结构示意图；
图3为本公开实施例的阵列基板的一结构示意图；
图4为本公开实施例的触控驱动电极串线的结构示意图；
图5为本公开实施例的阵列基板的剖面结构示意图；
图6为本公开实施例的阵列基板的另一结构示意图；
图7为本公开实施例的阵列基板的又一结构示意图；
图8为本公开实施例的阵列基板的制备方法的流程示意图。
具体实施方式
为使本公开要解决的技术问题、技术方案和优点更加清楚，下面将结合附图及具体实施例进行详细描述。
请参看图3，图3为本公开实施例的阵列基板的结构示意图，所述阵列基板的公共电极层包括相互绝缘的多条触控驱动电极110和多条公共电极120，所述触控驱动电极110与所述公共电极120交叉设置；所述触控驱动电极110包括沿着所述触控驱动电极110的延伸方向设置的多个触控驱动子电极111，各所述触控驱动子电极111位于相邻的所述公共电极120之间。
本公开实施例中，将阵列基板中整面连接的公共电极层进行分割，形成相互绝缘且交叉设置的多个触控驱动电极110和多个公共电极120。对触控驱动电极进行分时驱动，以实现触控功能和显示功能。在需要实现触控功能时，向触控驱动电极加载触控扫描信号。在需要实现显示功能时，向公共电极120和触控驱动电极110同时加载公共电极信号。
为解决现有的内嵌式触摸屏中触控驱动电极和公共电极负载不一致导致的显示不均匀及难以实现窄边框的问题，本公开实施例的阵列基板还包括：
触控驱动电极串线130，其中，属于同一触控驱动电极110的各触控驱动子电极111通过至少一条所述触控驱动电极串线130电连接，所述触控驱动电极串线130位于所述阵列基板的显示区域，其延伸方向与所述触控驱动电极110的延伸方向一致。
由于本公开实施例提供的由多个触控驱动子电极111组成的触控驱动电 极110与触控驱动电极串线130电连接，因而，可以降低触控驱动电极110的信号传输负载，使其与公共电极120的信号传输负载相对接近，在显示阶段公共信号在公共电极120和触控驱动电极110的传输速度也相对接近，可以避免显示画面不均匀的问题，改善画面品质。并且，将触摸驱动电极串线130设置在阵列基板的非显示区域，有利于窄边框的实现。
由于本公开实施例提供的上述阵列基板中，触控和显示阶段采用分时驱动的方式，一方面可以将显示驱动和触控驱动的芯片整合为一体，降低生产成本；另一方面分时驱动也能够降低显示和触控的相互干扰，提高画面品质和触控准确性。
在具体实施时，一般阵列基板上都形成有呈矩阵排列的多个像素单元，可以将各触控驱动电极110沿着像素单元的行方向延伸；各公共电极120沿着像素单元的列方向延伸；当然也可以根据应用器件的尺寸，变更两者的布线方向，即将各触控驱动电极110设置为沿着像素单元的列方向延伸，各公共电极120设置为沿着像素单元的行方向延伸，在此不做限定。
在具体实施时，触控驱动电极110沿着像素单元的行方向延伸时，各触控驱动电极串线130也是沿着像素单元的行方向延伸，即各触控驱动电极串线130位于相邻行的像素单元之间的间隙处；触控驱动电极110沿着像素单元的列方向延伸时，各触控驱动电极串线130也是沿着像素单元的列方向延伸，即各触控驱动电极串线130位于相邻列的像素单元之间的间隙处。也就是说，所述触控驱动电极串线130的延伸方向通常与所述触控驱动电极110的延伸方向一致。
下面都是以各触控驱动电极110沿着像素单元的列方向延伸，各公共电极120沿着像素单元的行方向延伸为例进行说明。
本公开实施例的触控驱动电极串线130可以单层独立设置，进一步地，在具体实施时，触控驱动电极串线130还可以与阵列基板中的信号线层(如像素电极层、源漏金属层或栅金属层)同层设置；各触控驱动电极串线130通过至少两个过孔与对应的各触控驱动子电极111电连接，这样，在制备阵列基板时不需要增加额外的制备工序，可同时形成触控驱动电极串线和信号线层的图形，能够节省制备成本，提升产品附加值。
当各触控驱动电极串线130设置于阵列基板中的像素电极层时，触控驱动电极串线130可以呈条状，设置于相邻的像素单元之间，正对数据线位置。
由于像素电极层一般由ITO材料制成，而ITO材料的电阻较高，ITO材料制备的触控驱动电极串线130的电阻也会相应的较高，因而，为了能最大限度的减少触控驱动电极110的电阻，进一步地，请参考图4和图5，每一所述触控驱动电极串线130可以由位于所述阵列基板的像素电极层的沿着所述触控驱动电极的延伸方向设置的多个透明导电线131，以及位于所述阵列基板的源漏金属层的源漏金属连接线132组成，其中，沿着所述触控驱动电极的延伸方向设置的多个透明导电线131通过所述源漏金属连接线132串联，所述透明导电线131通过过孔133与所述源漏金属连接线132电性连接。
为了不影响开口率，进一步地，源漏金属层的源漏金属连接线132沿着数据线延伸方向设置，而数据线对应位置上还设置有多个子数据线141，所述子数据线141与所述源漏金属连接线132间隔设置，为了将所述多个子数据线141串联起来，本公开实施例中，可以在栅金属层上数据线对应位置处设置多个栅金属连接线142，属于同一数据线的多个子数据线141通过所述栅金属连接线142串联起来，形成完整的数据线。
为了降低公共电极的信号传输负载，进一步地，如图6所述，本公开实施例的阵列基板还可以包括公共电极串线150，其中，所述公共电极串线150与所述公共电极120电连接。
进一步地，所述公共电极串线150的设置方式与所述触控驱动电极串线130的设置方式相同。这样，在制备阵列基板时不需要增加额外的制备工序，可同时形成触控驱动电极串线130和公共电极串线150的图形，从而节省制备成本，提升产品附加值。当然，所述公共电极串线150的数量小于所述触控驱动电极串线130的数量，以使得触控驱动电极110与公共电极120的信号传输负载相对接近。
进一步地，同所述触控驱动电极串线130相同，请参考图4，每一所述公共电极串线150可以由位于所述阵列基板的像素电极层的沿着所述触控驱动电极的延伸方向设置的多个透明导电线131，以及位于所述阵列基板的源漏金属层的源漏金属连接线132组成，其中，沿着所述触控驱动电极的延伸 方向设置的多个透明导电线131通过所述源漏金属连接线132串联，所述透明导电线131通过过孔133与所述源漏金属连接线132电性连接。
请参考图5，图5为本公开实施例的阵列基板的一剖面结构示意图，该阵列基板包括：
栅金属层，所述栅金属层包括：多条栅线160及位于相邻栅线160之间的沿着数据线延伸方向设置的栅金属连接线142；
栅绝缘层170；
有源层(图未示出)；
源漏金属层，所述源漏金属层包括：沿着数据线的延伸方向设置的多个子数据线141及多个源漏金属连接线132，子数据线141与源漏金属连接线132间隔设置；
第一保护层180；
像素电极层，所述像素电极层包括：像素电极(图未示出)以及正对数据线位置设置的多个透明导电线131，位于同一列的多个透明导电线131通过第一保护层180上的过孔与源漏金属连接线132连接，形成触控驱动电极串线；
第二保护层190；
公共电极层，所述公共电极层包括：相互绝缘的多条触控驱动电极和多条公共电极120，所述触控驱动电极与所述公共电极120交叉设置；所述触控驱动电极包括沿着所述触控驱动电极的延伸方向设置的多个触控驱动子电极111，各所述触控驱动子电极111位于相邻的所述公共电极120之间。属于同一触控驱动电极的多个触控驱动子电极111通过第二保护层190上的过孔与触控驱动电极串线电连接。
此外，如果不考虑窄边框的因素，本公开实施例中，为了进一步降低触控驱动电极和公共电极的电阻，如图7所示，还可以在栅金属层设置公共电极走线201及触控驱动电极走线202，公共电极走线201通过过孔与公共电极120电连接，触控驱动电极走线202通过过孔与触控驱动电极110电连接。
本公开实施例还提供一种内嵌式触摸屏，包括上述任一实施例中的阵列基板及与所述阵列基板相对而置的对向基板，所述对向基板具有多条触控感 应电极，各所述触控感应电极在所述阵列基板上的正投影位于所述公共电极所在区域内。即，触控感应电极的位置与公共电极的位置相对应，这样能避免触控感应电极和触控驱动电极之间产生正对面积。
在具体实施时，在本公开实施例提供的触摸屏中，对向基板一般具有设置在衬底基板上的黑矩阵，触控感应电极可以位于衬底基板与黑矩阵之间，也可以位于黑矩阵之上，在此不做限定。
触控感应电极的材料可以具体为透明导电氧化物例如ITO或IZO，也可以为金属，当采用金属制作触控感应电极时可以有效的降低其电阻。
基于同一发明构思，本公开实施例还提供了一种显示装置，包括本公开实施例提供的上述内嵌式触摸屏，该显示装置可以为：手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。该显示装置的实施可以参见上述内嵌式触摸屏的实施例，重复之处不再赘述。
请参考图8和图5，本公开实施例还提供一种阵列基板的制备方法，包括以下步骤：
步骤S201：形成栅金属层，所述栅金属层包括：多条平行设置的栅线160及位于相邻的栅线160之间的沿着数据线的延伸方向设置的多条栅金属连接线142；
步骤S202：形成栅绝缘层170，并在栅绝缘层的对应栅金属连接线142的位置形成过孔；
步骤S203：形成有源层(图未示出)；
步骤S204：形成源漏金属层，所述源漏金属层包括：沿着数据线的延伸方向设置的多个子数据线141及多个源漏金属连接线132，所述子数据线141与所述源漏金属连接线132间隔设置，属于同一条数据线的多个所述子数据线141通过所述栅绝缘层的过孔与所述栅金属连接线142电性连接，形成完成的数据线；
步骤S205：形成第一保护层180，并在第一保护层180的对应源漏金属连接线132的位置形成过孔；
步骤S206：形成像素电极层，所述像素电极层包括：像素电极(图未示 出)及正对数据线位置的多个透明导电线131，位于同一列的多个透明导电线131通过第一保护层上170的过孔与源漏金属连接线132连接，形成触控驱动电极串线；
步骤S207：形成第二保护层190，并在第二保护层190的对应透明导电线131位置形成过孔；
步骤S208：形成公共电极层，所述公共电极层包括：相互绝缘的多条触控驱动电极和多条公共电极120，所述触控驱动电极与所述公共电极120交叉设置；所述触控驱动电极包括沿着所述触控驱动电极的延伸方向设置的多个触控驱动子电极111，各所述触控驱动子电极111位于相邻的所述公共电极120之间。属于同一触控驱动电极的多个触控驱动子电极111通过第二保护层190上的过孔与触控驱动电极串线电连接。
以上所述是本公开的可选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本公开所述原理的前提下，还可以作出若干改进和润饰，这些改进和润饰也应视为本公开的保护范围。

Claims (13)

  1. 一种阵列基板，所述阵列基板的公共电极层包括相互绝缘的多条触控驱动电极和多条公共电极，所述触控驱动电极与所述公共电极交叉设置；所述触控驱动电极包括沿着所述触控驱动电极的延伸方向设置的多个触控驱动子电极，各所述触控驱动子电极位于相邻的所述公共电极之间；所述阵列基板还包括：
    触控驱动电极串线，其中，属于同一触控驱动电极的各触控驱动子电极通过至少一条所述触控驱动电极串线电连接，所述触控驱动电极串线位于所述阵列基板的显示区域，其延伸方向与所述触控驱动电极的延伸方向一致。
  2. 根据权利要求1所述的阵列基板，其中，所述阵列基板上形成有呈矩阵排列的多个像素单元；
    各所述触控驱动电极沿像素单元的列方向延伸，各公共电极沿着像素单元的行方向延伸。
  3. 根据权利要求1所述的阵列基板，其中，所述阵列基板上形成有呈矩阵排列的多个像素单元；
    各所述触控驱动电极沿像素单元的行方向延伸，各公共电极沿着像素单元的列方向延伸。
  4. 根据权利要求2或3所述的阵列基板，其中，每一所述触控驱动电极串线由位于所述阵列基板的像素电极层的沿着所述触控驱动电极的延伸方向设置的多个透明导电线，以及位于所述阵列基板的源漏金属层的源漏金属连接线组成，其中，沿着所述触控驱动电极的延伸方向设置的多个透明导电线通过所述源漏金属连接线串联。
  5. 根据权利要求4所述的阵列基板，其中，所述透明导电线通过过孔与所述源漏金属连接线电性连接。
  6. 根据权利要求4所述的阵列基板，其中，所述源漏金属层还包括：沿着数据线的延伸方向设置的多个子数据线，所述多个子数据线通过位于所述阵列基板的栅金属层的沿着数据线的延伸方向设置的栅金属连接线串联。
  7. 根据权利要求1-6任一项所述的阵列基板，其中，还包括：
    公共电极串线，其中，所述公共电极串线与所述公共电极电连接，所述公共电极串线位于所述阵列基板的显示区域。
  8. 根据权利要求7所述的阵列基板，其中，所述公共电极串线的延伸方向与所述触控驱动电极串线的延伸方向一致，所述公共电极串线的数量小于所述触控驱动电极串线的数量。
  9. 一种内嵌式触摸屏，包括权利要求1-8任一项所述的阵列基板及与所述阵列基板相对而置的对向基板，所述对向基板具有多条触控感应电极。
  10. 根据权利要求9所述的内嵌式触摸屏，其中，各所述触控感应电极在所述阵列基板上的正投影位于所述公共电极所在区域内。
  11. 根据权利要求10所述的内嵌式触摸屏，其中，所述对向基板具有设置在衬底基板上的黑矩阵，所述触控感应电极位于所述衬底基板与所述黑矩阵之间，或者位于所述黑矩阵之上。
  12. 一种显示装置，包括如权利要求9所述的内嵌式触摸屏。
  13. 一种阵列基板的制备方法，包括以下步骤：
    步骤1：形成栅金属层，所述栅金属层包括：多条平行设置的栅线及位于相邻的栅线之间的沿着数据线的延伸方向设置的多条栅金属连接线；
    步骤2：形成栅绝缘层，并在栅绝缘层的对应栅金属连接线的位置形成过孔；
    步骤3：形成有源层；
    步骤4：形成源漏金属层，所述源漏金属层包括：沿着数据线的延伸方向设置的多个子数据线及多个源漏金属连接线，所述子数据线与所述源漏金属连接线间隔设置，属于同一条数据线的多个所述子数据线通过所述栅绝缘层的过孔与所述栅金属连接线电性连接，形成完成的数据线；
    步骤5：形成第一保护层，并在第一保护层的对应源漏金属连接线的位置形成过孔；
    步骤6：形成像素电极层，所述像素电极层包括：像素电极及正对数据线位置的多个透明导电线，位于同一列的多个透明导电线通过第一保护层上的过孔与源漏金属连接线连接，形成触控驱动电极串线；
    步骤7：形成第二保护层，并在第二保护层的对应透明导电线位置形成 过孔；
    步骤8：形成公共电极层，所述公共电极层包括：相互绝缘的多条触控驱动电极和多条公共电极，所述触控驱动电极与所述公共电极交叉设置；所述触控驱动电极包括沿着所述触控驱动电极的延伸方向设置的多个触控驱动子电极，各所述触控驱动子电极位于相邻的所述公共电极之间，属于同一触控驱动电极的多个触控驱动子电极通过第二保护层上的过孔与触控驱动电极串线电连接。
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