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WO2015176459A1 - 触控显示面板及其制作方法、触控显示装置 - Google Patents

触控显示面板及其制作方法、触控显示装置 Download PDF

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Publication number
WO2015176459A1
WO2015176459A1 PCT/CN2014/087605 CN2014087605W WO2015176459A1 WO 2015176459 A1 WO2015176459 A1 WO 2015176459A1 CN 2014087605 W CN2014087605 W CN 2014087605W WO 2015176459 A1 WO2015176459 A1 WO 2015176459A1
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WO
WIPO (PCT)
Prior art keywords
common electrode
touch
display panel
electrode
touch display
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Application number
PCT/CN2014/087605
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English (en)
French (fr)
Inventor
赵卫杰
董学
王海生
王磊
刘红娟
丁小梁
杨盛际
刘英明
任涛
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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Application filed by 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 filed Critical 京东方科技集团股份有限公司
Priority to US14/436,686 priority Critical patent/US9626051B2/en
Publication of WO2015176459A1 publication Critical patent/WO2015176459A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—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
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices

Definitions

  • Embodiments of the present invention relate to a touch display panel, a method of fabricating the same, and a touch display device.
  • the display device is a digital device video signal output terminal that is directly transmitted to the operator information and is an indispensable device.
  • the function of the display device is not limited to receiving signals for display, but has a control command input function.
  • the touch display device can directly input commands through the screen, and can even replace an auxiliary device for input such as a keyboard.
  • a capacitive in-cell touch panel is directly added to a thin film field effect transistor (TFT) array substrate by directly adding a touch scan line and a touch sense line, that is, two layers are formed on the surface of the TFT array substrate.
  • TFT thin film field effect transistor
  • ITO Indium Tin Oxide
  • the working process of the capacitive in-cell touch screen is: when loading the touch driving signal to the ITO electrode as the touch driving line, detecting the voltage signal that the touch sensing line is coupled through the sensing capacitor, in the process, the human body When the touch screen is touched, a coupling capacitor is formed between the human body and the touch driving electrode and the touch sensing electrode in the touch screen, and the coupling capacitor acts on the sensing capacitor to change the capacitance value of the sensing capacitor, thereby changing the touch sensing line.
  • the coupled voltage signal determines the position of the contact based on the change in the voltage signal.
  • At least one embodiment of the present invention provides a touch display panel, a method for fabricating the same, and a touch display device for simplifying the production process of the touch display panel and improving production efficiency.
  • At least one embodiment of the present invention provides a touch display panel comprising: an array substrate and a counter substrate; a common electrode layer is formed on the transparent substrate of the array substrate; and the transparent substrate of the opposite substrate faces the array substrate One side is formed with a touch sensing electrode; the common electrode layer is at the display stage The segment serves as a first common electrode, and at least a portion of the common electrode layer serves as a touch driving electrode during a touch phase; and a portion of the common electrode layer as a touch driving electrode is disposed to intersect with the touch sensing electrode.
  • At least one embodiment of the present invention provides a touch display device, wherein the touch display device includes the touch display panel of any of the above.
  • At least one embodiment of the present invention provides a method for fabricating a touch display panel, comprising: forming a common electrode layer on a transparent substrate of an array substrate, at least a portion of the common electrode layer being strip electrodes arranged in a spaced relationship; The transparent substrate of the substrate forms a touch sensing electrode toward one side of the array substrate; and the strip electrode intersects the touch sensing electrode after the box.
  • FIG. 1 is a schematic structural diagram of a touch display panel according to an embodiment of the present invention.
  • FIG. 2 is a schematic view showing the distribution of the touch sensing electrode and the common electrode layer of FIG. 1;
  • FIG. 3 is a schematic diagram of a second common electrode positional relationship according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a first common electrode and a second common electrode connected according to an embodiment of the present invention
  • FIG. 5 is a schematic flow chart of a method for fabricating a touch display panel according to an embodiment of the present invention
  • FIG. 6 is a schematic flow chart of a method for fabricating a touch display panel according to another embodiment of the present invention.
  • the inventors have found that a capacitive in-line touch screen structure design in which a touch scan line and a touch sensor line are directly added to an array substrate requires a new film layer to be added to the TFT array substrate, so that it is necessary to increase the TFT array substrate.
  • the new process increases the production cost and is not conducive to improving production efficiency.
  • FIG. 1 is a schematic structural diagram of a touch display panel according to an embodiment of the present invention.
  • the touch display panel in this embodiment includes an array substrate and a counter substrate.
  • the opposite substrate need not be a color film substrate.
  • a common electrode layer 101 is formed on the transparent substrate 100 of the array substrate; a transparent substrate 103 as a color filter substrate of the opposite substrate forms a touch sensing electrode (Rx) 105 toward one side of the array substrate; the common electrode layer 101 In the display phase as the first common electrode, that is, the potential thereof is set to a common level by the driving IC, and at least a part of the common electrode layer 101 serves as the touch driving electrode (Tx) 104 in the touch phase, and the potential thereof corresponds to the touch Control the drive signal, such as a square wave signal. Therefore, the common electrode layer 101 is time-multiplexed into a common electrode and a touch driving electrode during use.
  • a portion of the common electrode layer 101 as a touch driving electrode is disposed to intersect with the touch sensing electrode 105.
  • the extending direction of the touch sensing electrode 105 can be extended with the common electrode layer 101 as the touch driving electrode 104. Vertical or otherwise intersect.
  • the touch sensing electrode 105 can be a strip-shaped ITO electrode, and the common electrode layer as the touch driving electrode 104 can also be a plurality of strip electrodes arranged in a row, as shown in FIG. 2 . Show.
  • the transparent substrate of the array substrate may be an array glass or other transparent light guide material substrate, which is not limited in this embodiment;
  • the lens substrate of the color filter substrate may be a color film glass or other transparent light guide material substrate. This embodiment does not limit it.
  • the touch display panel in at least one embodiment of the present invention faces the array on the transparent substrate of the color filter substrate Adding an ITO electrode as the touch sensing electrode 105 on one side of the column substrate can reduce the distance between the finger and the touch sensing electrode (Rx), thereby effectively improving the touch variation in the touch display panel and improving the touch. effect.
  • the array substrate further includes a gate line, a data line, and an array of pixel cells defined by the gate line and the data line, each of the pixel units including a switching element such as a thin film transistor and a pixel electrode.
  • the color filter substrate further includes a black matrix 102 and a color filter (not shown), and the black matrix is used for spacing the color filters arranged in an array to improve color contrast and reduce light leakage.
  • the red, green, and blue color filters in the color filter substrate are disposed corresponding to the pixel electrodes in the array substrate; for example, the black matrix may correspond to the positions of the gate lines and the data lines provided in the array substrate.
  • a liquid crystal layer 106 is disposed between the color filter substrate and the array substrate.
  • the common electrode layer 101 is, for example, a common electrode layer on an array substrate of an ADS type LCD, and is disposed on an array structure of the array substrate including a gate line, a data line, a thin film transistor, and a pixel electrode.
  • Upper for example, on the upper surface.
  • the touch display panel of the embodiment further includes a polarizer 109 carrying a protective film 108 , and the polarizer 109 can change the polarization direction of the light to complete the liquid crystal display function.
  • the position of the black matrix 102, the color filter, the alignment layer 107 in which the liquid crystal layer 106 is disposed, and the polarizer 109 with the protective film 108 in the touch display panel can be set according to known techniques. This embodiment will not be described in detail.
  • a common electrode layer is formed on a transparent substrate of the array substrate, and a transparent sensing substrate of the opposite substrate faces a surface of the array substrate to form a touch sensing electrode, and the common electrode layer is used as a display stage.
  • the first common electrode, as part of the touch driving electrode in the touch electrode stage, can avoid the process of separately providing the touch driving electrode, thereby reducing the production cost of the touch display panel and improving the production efficiency of the touch display panel.
  • the common electrode layers in the array substrate can be multiplexed into the touch driving electrodes, and the intersection ratio of the touch sensing electrodes and the touch driving electrodes is increased, thereby improving the touch display panel.
  • the amount of touch change when the common electrode layers in the array substrate are all multiplexed into the touch driving electrodes, the common electrode layers are divided into electrode strips spaced apart from each other and connected to the touch driving circuit, and the touch signals are applied during the touch phase.
  • At least one embodiment of the present invention may further include a second common electrode 110 in the touch display panel, as shown in FIG.
  • the touch display panel may further include: a second common electrode on the array substrate and located at a periphery of the pixel electrode, the second common electrode may at least partially cover the gate line and/or the data line.
  • the second common electrode 110 may partially cover the gate lines and partially cover the data lines.
  • the second common electrode 110 may be insulated from the gate line and the data line, for example, an insulating layer. At this time, the second common electrode 110 may be located between the array structure of the array substrate and the common electrode layer 101.
  • the second common electrode may be made of indium tin oxide (ITO). That is, the ITO electrodes are added in the direction of the gate lines and the data lines around the pixel electrodes, and the ITO electrodes are connected to form the second common electrode 110 as a whole.
  • the ITO electrodes in this embodiment may correspond to being located under the black matrix.
  • the touch display panel further includes a second common electrode, and the voltage of the second common electrode is equal to the voltage of the first common electrode.
  • the second common electrode and the first common electrode are connected by an operational amplifier to physically isolate the first common electrode and the second common electrode with equal voltages, thereby ensuring the second common electrode
  • the voltage is equal to the voltage of the first common electrode.
  • the first common electrode is connected to the forward input terminal of the operational amplifier (OP)
  • the second common electrode is negatively connected to the inverting input terminal of the operational amplifier
  • the output of the operational amplifier is connected to the periphery of the pixel electrode.
  • the ITO electrode is the second common electrode, so as to ensure that the change of the potential on the second common electrode caused by the gate line (Gate Line) and the data line (Source Line) is adjusted back to the first common electrode through the negative feedback circuit.
  • the potential is the same.
  • the second common electrode negative feedback and the second common electrode are actually different positions on the second common electrode.
  • the second common electrode and the first common electrode located at the periphery of the pixel electrode are connected by an operational amplifier, and when the potentials of the second common electrode and the first common electrode are the same, the first common electrode is cut by the high resistance of the operational amplifier.
  • the physical connection of the second common electrode further reduces the RC load of the touch drive electrode.
  • the touch display panel is added with a second common electrode equal to the voltage of the first common electrode, the RC load of the touch driving electrode can be reduced on the one hand, and the gate can be lowered on the other hand.
  • the effect of the line and the data line on the common electrode when charging, thereby improving the touch display The display effect of the display panel.
  • the opposite substrate disposed opposite to the array substrate to form the liquid crystal cell does not include a color film structure, and accordingly, a color film structure is formed on the array substrate, in this embodiment.
  • the array substrate may also be a COA (Color-filter On Arrary) substrate.
  • the black matrix may be formed on the opposite substrate or may be formed on the array substrate.
  • At least one embodiment of the present invention further provides a touch display device.
  • the touch display device of the present embodiment may include the touch display panel described in any of the above embodiments.
  • the touch display device can be, for example, an electronic paper, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like, or any product or component having a display function.
  • the touch display device in the embodiment can improve the display effect and the touch effect, and can simplify the preparation process of the touch display device, reduce the production cost, and improve the production efficiency of the touch display device.
  • FIG. 5 is a schematic flow chart of a method for fabricating a touch display panel according to an embodiment of the present invention.
  • the method for fabricating the touch display panel in this embodiment is as follows.
  • a common electrode layer on the transparent substrate of the array substrate, at least a part of the common electrode layer is a strip electrode arranged in a spaced relationship;
  • the strip electrode intersects the touch sensing electrode after the box.
  • the above manufacturing method may further include the following step 504, as shown in FIG. 6;
  • the above manufacturing method naturally includes a process of fabricating and forming other structures, and details are not described herein again.
  • the above steps are not in order.
  • the manufacturing method of the display panel in at least one embodiment of the present invention can reduce the manufacturing process of the display panel, thereby reducing the manufacturing cost of the display panel, and improving the manufacturing efficiency of the display panel.
  • the opposite substrate disposed opposite to the array substrate to form the liquid crystal cell does not include a color film structure, and accordingly, a color film structure is formed on the array substrate, in which the implementation is performed.
  • the array substrate can also be a COA (Color-filter On Array).
  • the black matrix may be formed on the opposite substrate or on the array substrate.

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  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
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Abstract

一种触控显示面板及其制作方法、触控显示装置，该触控显示面板包括：阵列基板和对置基板；所述阵列基板的透明基板（100）上形成有公共电极层（101）；所述对置基板的透明基板（103）朝向所述阵列基板的一面形成有触控感应电极（105）；所述公共电极层（101）在显示阶段作为第一公共电极，在触控阶段所述公共电极层（101）的至少一部分作为触控驱动电极（104）；所述作为触控驱动电极（104）的公共电极层（101）的部分与所述触控感应电极（105）呈交叉设置。该触控显示面板制作工艺简单，能够有效降低触摸屏的生成成本，提高生产效率。

Description

触控显示面板及其制作方法、触控显示装置 技术领域
本发明的实施例涉及一种触控显示面板及其制作方法、触控显示装置。
背景技术
数字化设备已经成为人们生活、生产不可缺少的重要元素。显示装置作为数字设备视频信号输出终端，直接传递给操作者信息，属于必不可少的装置。随着科学技术的发展，显示装置的功能并不局限于接收信号进行显示，而是具有控制命令输入功能。触控显示装置可通过屏幕直接输入命令，甚至可取代键盘等用于输入的附属设备。
一种电容式内嵌触摸屏是在薄膜场效应晶体管(Thin Film Transistor，简称TFT)阵列基板上直接另外增加触控扫描线和触控感应线实现，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氧化物(Indium Tin Oxide，简称ITO)电极，这两层(ITO)电极分别作为触摸屏的触控驱动线和触控感应线，在两条ITO电极的异面相交处形成感应电容。这种电容式内嵌触摸屏的工作过程为：在对作为触控驱动线的ITO电极加载触控驱动信号时，检测触控感应线通过感应电容耦合出的电压信号，在此过程中，有人体接触触摸屏时，人体与触摸屏内的触控驱动电极和触控感应电极之间形成耦合电容，该耦合电容就会作用在感应电容上，使感应电容的电容值发生变化，进而改变触控感应线耦合出的电压信号，根据电压信号的变化，就可以确定触点位置。
发明内容
本发明至少一实施例提供一种触控显示面板及其制作方法、触控显示装置，用于简化触摸显示面板的生产工艺，提高生产效率。
本发明至少一实施例提供一种触控显示面板，包括：阵列基板和对置基板；所述阵列基板的透明基板上形成有公共电极层；所述对置基板的透明基板朝向所述阵列基板的一面形成有触控感应电极；所述公共电极层在显示阶 段作为第一公共电极，在触控阶段所述公共电极层的至少一部分作为触控驱动电极；所述作为触控驱动电极的公共电极层的部分与所述触控感应电极呈交叉设置。
本发明至少一实施例提供一种触控显示装置，所述触控显示装置包括上述任一所述的触控显示面板。
本发明至少一实施例提供一种触控显示面板的制作方法，包括：在阵列基板的透明基板上形成公共电极层，所述公共电极层的至少一部分为分隔排列的条状电极；在对置基板的透明基板朝向所述阵列基板的一面形成触控感应电极；对盒后所述条状电极与所述触控感应电极交叉。
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为本发明一实施例提供的触控显示面板的结构示意图；
图2为图1中触控感应电极和公共电极层的分布示意图；
图3为本发明一实施例提供的第二公共电极位置关系的示意图；
图4为本发明一实施例提供的第一公共电极和第二公共电极连接的示意图；
图5为本发明一实施例提供的触控显示面板的制作方法的流程示意图；
图6为本发明另一实施例提供的触控显示面板的制作方法的流程示意图。
附图元件说明：
100阵列基板的透明基板  102黑矩阵        101公共电极层
103彩膜基板的透明基板  104触控驱动电极  105触控感应电极
106液晶层              107取向层        108保护膜
109偏光片              110第二公共电极
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。
发明人发现，在阵列基板上直接另外增加触控扫描线和触控感应线的电容式内嵌触摸屏结构设计，需要在TFT阵列基板上增加新的膜层，因此在制作TFT阵列基板时需要增加新的工艺，使生产成本增加，不利于提高生产效率。
图1为本发明一实施例提供的触控显示面板的结构示意图，如图1所示，本实施例中的触控显示面板包括：阵列基板和对置基板。该对置基板的一个示例彩膜(color filter)基板。当阵列基板本身具有彩膜结构时，则对置基板无需为彩膜基板。所述阵列基板的透明基板100上形成公共电极层101；作为对置基板的彩膜基板的透明基板103朝向所述阵列基板的一面形成触控感应电极(Rx)105；所述公共电极层101在显示阶段作为第一公共电极，即其电位被驱动IC设置为公共电平，在触控阶段所述公共电极层101的至少一部分作为触控驱动电极(Tx)104，则其电位对应于触控驱动信号，例如为方波信号。因此，公共电极层101在使用过程中被分时复用为公共电极和触控驱动电极。
所述作为触控驱动电极的公共电极层101的部分与所述触控感应电极105呈交叉设置。
在本发明至少一实施例中，为提高触控显示面板的触控效果，如图2所示，触控感应电极105的延伸方向可与作为触控驱动电极104的公共电极层101的延伸方向垂直或以其他方式交叉。
在本发明至少一实施例中，触控感应电极105可为条状结构的ITO电极，前述作为触控驱动电极104的公共电极层也可为多个分隔排列的条状电极，如图2所示。
本实施例中，阵列基板的透明基板可为阵列玻璃或其他透明导光材质的基板，本实施例不对其进行限定；彩膜基板的透镜基板可为彩膜玻璃或其他透明导光材质的基板，本实施例不对其进行限定。
本发明至少一实施例中的触控显示面板，在彩膜基板的透明基板朝向阵 列基板的一面增加ITO电极作为触控感应电极105，这样能够减少例如手指和触控感应电极(Rx)之间的距离，进而可有效提高触控显示面板中的触控变化量，提升触控效果。
阵列基板还包括栅线、数据线以及由栅线和数据线限定的像素单元阵列，每个像素单元包括例如薄膜晶体管的开关元件和像素电极。彩膜基板还包括黑矩阵102和彩色滤光片(图中未标出)，黑矩阵用于间隔以阵列布置的彩色滤光片，可以提高色彩对比度、减少漏光。彩膜基板中红、绿、蓝三色彩色滤光片与阵列基板中像素电极对应设置；例如，黑矩阵可与阵列基板中设置的栅极线、数据线的位置对应。在彩膜基板和阵列基板之间设置有液晶层106。在本发明的至少一个实施例中，上述公共电极层101例如为ADS型LCD的阵列基板上的公共电极层，设置在阵列基板的包括栅线、数据线、薄膜晶体管与像素电极的阵列结构之上，例如位于上表面。
另外，如图1所示，该实施例的触控显示面板还包括携带有保护膜108的偏光片109，该偏光片109可使光的偏振方向改变，以完成液晶显示功能。
本实施例中，黑矩阵102、彩色滤光片、中间设有液晶层106的取向层107、带有保护膜108的偏光片109在触控显示面板中的位置可以按照已知技术设置。本实施例不再对其进行详述。
本发明至少一实施例中的触控显示面板，通过在阵列基板的透明基板上形成公共电极层，对置基板的透明基板朝向阵列基板的一面形成触控感应电极，公共电极层在显示阶段作为第一公共电极，在触控阶段公共电极层的部分作为触控驱动电极，可避免单独设置触控驱动电极的工艺，进而可减少触摸显示面板的生产成本，同时提高触控显示面板的生产效率。
在应用过程中，例如，在触控阶段可将阵列基板中的公共电极层全部复用为触控驱动电极，增加触控感应电极和触控驱动电极的交叉率，进而提高触控显示面板的触控变化量。在阵列基板中的公共电极层全部复用为触控驱动电极时，将该公共电极层划分为彼此间隔开的电极条，并且与触控驱动电路连接，在触控阶段被施加触控信号。
由于在触控阶段部分作为触控驱动电极的公共电极层的下面为栅极线和数据线，所以在触控阶段，栅极线和数据线分别与公共电极层之间形成较大的电容，增加了触控驱动电极的电阻电容(Resistance Capacitance，简称RC) 负载。
为降低触控阶段的触控驱动电极的RC负载，本发明至少一实施例中，在触控显示面板中还可包括第二公共电极110，如图3所示。
例如，触控显示面板还可包括：位于所述阵列基板上且位于像素电极周边的第二公共电极，该第二公共电极可至少部分的覆盖栅极线和/数据线。如图3所示，第二公共电极110可部分覆盖栅极线和部分覆盖数据线。第二公共电极110与栅极线和数据线之间可以是绝缘的，例如存在绝缘层。此时，第二公共电极110可位于阵列基板的阵列结构与公共电极层101之间。
例如，第二公共电极可由氧化铟锡(ITO)制成。也就是说，在像素电极周边沿着栅极线和数据线的方向增加ITO电极，进而把这些ITO电极连接起来整体上形成第二公共电极110。本实施例中的ITO电极可对应位于黑矩阵下方。
由于触控显示面板还包括有第二公共电极，且第二公共电极的电压可与第一公共电极的电压相等。为此，如图4所示，第二公共电极和第一公共电极通过运算放大器连接，以使所述第一公共电极和第二公共电极物理隔离而电压相等，由此可保证第二公共电极的电压与第一公共电极的电压相等。
在图4中，第一公共电极连接运算放大器(Operational amplifier，简称OP)的正向输入端，第二公共电极负反馈连接于运算放大器的反向输入端，运算放大器的输出连接到像素电极周边的ITO电极即第二公共电极，这样能够保证在栅极线(Gate Line)和数据线(Source Line)充电时引起的第二公共电极上电位的变化通过负反馈电路调整回与第一公共电极的电位相同。此处，例如，第二公共电极负反馈和第二公共电极实际上是在第二公共电极上的不同位置。
可理解的是，通过运算放大器连接位于像素电极周边的第二公共电极和第一公共电极，保证第二公共电极和第一公共电极的电位相同时通过运算放大器的高阻切断第一公共电极和第二公共电极的物理连接，进而降低触控驱动电极的RC负载。
在本发明至少一实施例中，由于触控显示面板增加有与第一公共电极的电压相等的第二公共电极，一方面可以降低触控驱动电极的RC负载，另一方面，可以降低栅极线和数据线充电时对公共电极的影响，从而提升触控显 示面板的显示效果。
在本发明的另一个实施例的触控显示面板中，与阵列基板相对设置以形成液晶盒的对置基板不包括彩膜结构，相应地在阵列基板上形成有彩膜结构，在该实施例中，阵列基板也可以成为COA(Color-filter On Arrary)基板。进一步，例如黑矩阵可以形成在对置基板上，也可以形成在阵列基板上。
本发明至少一实施例还提供一种触控显示装置，本实施例的触控显示装置可包括上述任意实施例中描述的触控显示面板。触控显示装置例如可以为：电子纸、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。
本实施例中的触控显示装置，能够较好的提高显示效果和触控效果，同时可以简化触控显示装置的制备工艺，可降低生产成本，提高触控显示装置的生产效率。
如图5所示，图5示出了本发明一实施例提供的触控显示面板的制作方法的流程示意图，本实施例中触控显示面板的制作方法如下所述。
501、在阵列基板的透明基板上形成公共电极层，所述公共电极层的至少一部分为分隔排列的条状电极；
502、在彩膜基板的透明基板朝向所述阵列基板的一面形成触控感应电极；
503、对盒后所述条状电极与所述触控感应电极交叉。
本发明至少一实施例中，上述制作方法还可包括下述的步骤504，如图6所示；
504、在所述阵列基板上且在像素电极周边形成第二公共电极，所述第二公共电极至少部分的覆盖栅极线和/或数据线。
当然，上述制作方法中当然还包括制作和形成其他结构的工艺，在此不再赘述。另外，上述步骤并无先后之分。
本发明至少一实施例中显示面板的制作方法可以降低显示面板的制作工艺，进而降低显示面板的制作成本，并提高显示面板的制作效率。
在本发明的另一个实施例的显示面板的制作方法中，与阵列基板相对设置以形成液晶盒的对置基板不包括彩膜结构，相应地在阵列基板上形成有彩膜结构，在该实施例中，阵列基板也可以成为COA(Color-filter On Array) 基板。进一步，例如黑矩阵可以形成在对置基板上，也可以形成阵列基板上。
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。
本申请要求于2014年5月19日递交的中国专利申请第201410212115.7号的优先权，在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。

Claims (11)

  1. 一种触控显示面板，包括：阵列基板和对置基板；其中，所述阵列基板的透明基板上形成有公共电极层；所述对置基板的透明基板朝向所述阵列基板的一面形成有触控感应电极；
    所述公共电极层在显示阶段作为第一公共电极，在触控阶段所述公共电极层的至少一部分作为触控驱动电极；
    所述作为触控驱动电极的公共电极层的部分与所述触控感应电极呈交叉设置。
  2. 根据权利要求1所述的触控显示面板，其中，所述作为触控驱动电极的公共电极层的部分与所述触控感应电极垂直。
  3. 根据权利要求1或2所述的触控显示面板，其中，所述作为触控驱动电极的公共电极层的部分为分隔排列的条状电极。
  4. 根据权利要求1至3任一项所述的触控显示面板，其中，所述触控显示面板还包括：
    位于所述阵列基板上且位于所述像素电极周边的第二公共电极；
    所述第二公共电极至少部分的覆盖栅极线和/或数据线。
  5. 根据权利要求4所述的触控显示面板，其中，所述第一公共电极和所述第二公共电极的电压相等。
  6. 根据权利要求4或5所述的触控显示面板，其中，所述第一公共电极和所述第二公共电极通过运算放大器连接，以使所述第一公共电极和所述第二公共电极物理隔离而电压相等。
  7. 根据权利要求6所述的触控显示面板，其中，所述第一公共电极连接所述运算放大器的正向输入端，所述第二公共电极负反馈连接于所述运算放大器的反向输入端，所述运算放大器的输出连接到所述第二公共电极。
  8. 根据权利要求4至6任一项所述的触控显示面板，其中，所述第二公共电极由氧化铟锡制成。
  9. 一种触控显示装置，上述权利要求1-8任一项所述的触控显示面板。
  10. 一种用于制作包括权利要求1-8任一项所述的触控显示面板的方法，包括：
    在阵列基板的透明基板上形成公共电极层，所述公共电极层的至少一部分为分隔排列的条状电极；
    在对置基板的透明基板朝向所述阵列基板的一面形成触控感应电极；
    对盒后所述条状电极与所述触控感应电极交叉。
  11. 根据权利要求10所述的制作方法，还包括：
    在所述阵列基板上且在像素电极周边形成第二公共电极，所述第二公共电极至少部分的覆盖栅极线和/或数据线。
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CN103226423A (zh) * 2013-03-29 2013-07-31 北京京东方光电科技有限公司 内嵌式电容触控显示面板、显示装置、控制装置及方法
CN203133802U (zh) * 2013-03-29 2013-08-14 北京京东方光电科技有限公司 内嵌式电容触控显示面板、显示装置及控制装置
CN103995613A (zh) * 2014-05-19 2014-08-20 京东方科技集团股份有限公司 触控显示面板及其制作方法、触控显示装置

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