WO2017054414A1 - 触控显示面板和触控显示装置 - Google Patents

触控显示面板和触控显示装置 Download PDF

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Publication number
WO2017054414A1
WO2017054414A1 PCT/CN2016/075649 CN2016075649W WO2017054414A1 WO 2017054414 A1 WO2017054414 A1 WO 2017054414A1 CN 2016075649 W CN2016075649 W CN 2016075649W WO 2017054414 A1 WO2017054414 A1 WO 2017054414A1
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WIPO (PCT)
Prior art keywords
touch
substrate
display panel
touch display
conductive
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Ceased
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PCT/CN2016/075649
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English (en)
French (fr)
Inventor
贾鹏
王宝强
李宁
朴相镇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BOE Technology Group Co Ltd
Beijing BOE Display Technology Co Ltd
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BOE Technology Group Co Ltd
Beijing BOE Display Technology Co Ltd
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Priority to US15/308,772 priority Critical patent/US10401669B2/en
Publication of WO2017054414A1 publication Critical patent/WO2017054414A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/13338Input devices, e.g. touch panels
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/133345Insulating layers
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412Digitisers structurally integrated in a display
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0443Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F2201/00Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/12Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode
    • G02F2201/121Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode common or background
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04111Cross 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

Definitions

  • Embodiments of the present invention relate to a touch display panel and a touch display device.
  • touch screens are increasingly being applied to the field of liquid crystal display as the most simple, convenient and natural human-computer interaction.
  • the touch screen can be divided into four types: resistive, capacitive, infrared and surface acoustic wave.
  • Capacitive touch screen technology has become the mainstream touch screen technology due to its simple process, long product life and high light transmittance.
  • the Twisted Nematic (TN) type liquid crystal display panel integrated with the touch function is generally provided with a touch panel directly on the TN type liquid crystal display panel, wherein the liquid crystal display panel and the touch panel each include Two-layer substrate.
  • TN type liquid crystal display panel with touch function needs to bond at least four base substrates together, and thus has a complicated structure, a large thickness, and a high manufacturing cost.
  • At least one embodiment of the present invention provides a touch display panel and a touch display device to solve the problem that the TN type liquid crystal display panel of the prior art has a complicated structure, a large thickness, and a high manufacturing cost.
  • an embodiment of the present invention provides a touch display panel including a first substrate and a second substrate, wherein the first substrate is formed with a touch electrode toward one side of the second substrate, and the second a touch wire is formed on a surface of the substrate facing the first substrate, and a conductive structure is disposed between the first substrate and the second substrate;
  • the touch electrode is electrically connected to the touch wire through the conductive structure.
  • a common electrode is disposed on a side of the first substrate facing the second substrate, and the touch electrode is at least a common electrode on a side of the first substrate facing the second substrate. portion.
  • a plurality of touch electrodes are formed on the first substrate, a plurality of touch wires are formed on the second substrate, and each of the touch electrodes is electrically connected to at least one of the touch wires. And each of the touch wires is electrically connected to only one of the touch electrodes.
  • the electrically conductive structure is formed as a conductive pillar to which an anisotropic conductive material is added.
  • the first substrate includes a non-transmissive region, and the conductive structure is on the first substrate A projection is located in the non-transmissive region.
  • the second substrate includes a non-display area, and a projection of the conductive structure on the second substrate is located in the non-display area.
  • the conductive structure is disposed with a first conductive layer toward a side of the corresponding touch wire and is electrically connected to the touch wire through the first conductive layer.
  • the conductive structure is in direct contact with and electrically connected to the touch wire.
  • the first conductive layer is electrically connected to the touch wire by a via connection.
  • an insulating layer is disposed between the layer where the first conductive layer is located and the layer where the touch control wire is located, and a via hole is disposed in a position corresponding to the conductive structure in the insulating layer.
  • the first conductive layer is a metal liner.
  • the touch wire is disposed in the same layer as the data line or the gate line on the second substrate.
  • the touch wires and the data lines or gate lines on the second substrate are formed of the same material.
  • the embodiment of the present invention further provides a touch display device, including the touch display panel provided by any of the above embodiments.
  • 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 structural diagram of a touch display panel according to an embodiment of the present invention.
  • FIG. 3 is a top view of an electrical connection structure between a touch electrode and a touch wire according to an embodiment of the invention.
  • a touch display panel includes a first substrate 1 and a second substrate 2 disposed opposite to each other, and a touch electrode 3 is formed on a surface of the first substrate 1 facing the second substrate 2,
  • the second substrate 2 is formed with a touch wire 4 on one side of the first substrate 1 , and a conductive structure 5 is disposed between the first substrate 1 and the second substrate 2 .
  • the touch electrode 3 is electrically connected to the touch wire 4 through the conductive structure 5 . .
  • the touch electrode 3 formed on the first substrate 1 and the touch wire formed on the second substrate 2 are disposed by providing the conductive structure 5 between the first substrate 1 and the second substrate 2 4 electrically connecting and implementing the touch function, without additionally providing a touch panel, which can simplify the structure of the touch display panel, reduce the thickness and reduce the cost; meanwhile, the conductive structure 5 is disposed on the first substrate 1 and the second substrate 2 Between the two sides of the display panel, the touch electrodes 3 and the touch wires 4 are respectively located on different substrates (for example, the touch electrodes 3 are located on the first substrate 1 , The touch wire 4 is located on the second substrate 2), and the touch electrode 3 has a larger distance and a smaller capacitance between the touch wires or signal lines than the touch wires electrically connected to the touch electrode 3, and can improve the touch. Control sensitivity.
  • the touch electrode 3 may be an electrode layer separately formed for implementing a touch function, or may be designed based on an existing common electrode of the TN type display panel.
  • the touch electrode 3 is at least a portion of the common electrode 1 ′ on the first substrate 1 facing the second substrate 2 ; that is, the touch electrode 3 may be part of the common electrode 1 ′ or may be The touch electrode 3 is entirely used by the common electrode 1'.
  • the touch electrode 3 is defined by a portion of the common electrode 1'; and as shown in Fig. 2, the touch electrode 3 serves as the common electrode 1' at the same time. Therefore, it is not necessary to separately form an electrode layer for realizing the touch function, and the thickness of the TN-type touch display panel can be reduced.
  • each touch The electrodes 3 can be designed such that the vertical projection patterns of the first substrate 1 have the same shape and the same area, that is, the shapes of the touch electrodes 3 are the same and the same size; and at the same time, all the touch electrodes 3 are on the first substrate 1 Evenly distributed. It should be noted that the vertical projection pattern of the touch electrode 3 on the first substrate 1 may be any geometric figure, such as a rectangle.
  • the touch electrode 3 can transmit a common electrode signal and a touch signal, for example, in a time-division manner.
  • a plurality of touch electrodes 3 may be formed on the first substrate 1.
  • the second substrate 2 may be formed with a plurality of touch wires 4, and each of the touch electrodes 3 is electrically connected to at least one touch wire 4. connection.
  • each touch electrode 3 can be electrically connected to one or more touch wires 4, so that it can be flexibly set; when each touch electrode 3 is electrically connected to the plurality of touch wires 4, it can be reduced. resistance.
  • FIG. 3 shows a top view of the electrical connection structure between the touch electrodes 3 and the touch wires 4.
  • the plurality of touch electrodes 3 are electrically connected to the plurality of touch wires 4 in a one-to-one correspondence.
  • each touch wire 4 is electrically connected to only one touch electrode 3, and each touch wire 4 transmits only one touch signal of the touch electrode 3.
  • the touch wires 4 electrically connected to the touch electrodes 3 are respectively detected in the order of rows and columns according to the arrangement of the touch electrodes 3, thereby implementing the touch display panel. Touch function.
  • the electrically conductive structure 5 can take the form of a conductive post.
  • the conductive structure 5 is a conductive pillar to which an anisotropic conductive material is added, and the conductive pillar of the anisotropic conductive material can make the conductive direction more specific.
  • a conductive column-shaped conductive structure 5 may be provided at the position of the existing support, that is, the conductive structure 5 is also used as a support at the same time.
  • the projection of the conductive structure 5 on the first substrate 1 is located in the non-transmissive region of the substrate 1, or the conductive structure 5 is on the second substrate.
  • the projection on 2 is located in the non-display area between adjacent pixels.
  • the non-transparent area mentioned in the embodiment of the present invention refers to all opaque areas on the touch display panel, such as a black matrix area or an area covered by a signal line on the panel. Or an area with a thin film transistor.
  • the non-display area mentioned in the embodiment of the present invention refers to an area on the touch display panel that is not displayed, and may be, for example, a black matrix area, a peripheral circuit area, or the like.
  • the projection of the conductive structure 5 on the first substrate 1 may It is located in the occlusion area of the black matrix 10, but it should be understood by those skilled in the art that this is merely exemplary and not limiting.
  • the manner of electrical connection between the conductive structure 5 and the touch wire 4 can be flexibly selected according to different design requirements.
  • the conductive structure 5 can be electrically connected to the touch wire 4 through the first conductive layer 7; for example, the conductive structure 5 can be in direct contact with and electrically connected to the touch wire 4.
  • the first conductive layer 7 can be electrically connected to the touch wire 4 through a via connection.
  • the first conductive layer 7 may be disposed at one end of the conductive structure 5, and an insulating layer 6 is disposed between the layer where the first conductive layer 7 is located and the layer where the touch wire 4 is located.
  • 6 is formed with a plurality of vias 6' (only one via is shown in FIG. 1-2 for the sake of simplicity), the plurality of vias 6' are in one-to-one correspondence with the positions of the conductive structures 5, the first conductive layer 7
  • the vias 6' are electrically connected to the touch wires 4.
  • the first conductive layer 7 may be any material having a known conductive property, such as a transparent conductive material or a metal material.
  • the first conductive layer 7 may be a metal pad.
  • the touch wire 4 may be disposed in the same layer as the data line 8 or the gate line and the common electrode line (not shown); In some embodiments, the touch wire 4 can also have the same material as the data line 8, the gate line or the common electrode line (not shown), so that the touch line 4 can be formed together with other signal lines, further saving Process and reduce costs.
  • the touch display panel may further include other components or a hierarchical structure; for example, a color resist 9 formed on the first substrate 1 is formed on the second substrate 2
  • a color resist 9 formed on the first substrate 1 is formed on the second substrate 2
  • the thin film transistor 11, the gate insulating layer 12, the pixel electrode 13, and the liquid crystal 14 between the first substrate 1 and the second substrate 2, etc., are known in the art and will not be described herein.
  • the touch display panel is a self-capacitive touch display panel, and can be used as a self-capacitive TN type touch display panel.
  • the touch display panel can be variously modified to be used as other types of self-capacitive touch display panels.
  • a conductive structure is disposed between the first substrate and the second substrate to electrically connect the touch electrodes on the first substrate and the touch wires on the second substrate.
  • the conductive structure disposed between the first substrate and the second substrate is used as a conductor, and the traces on both sides of the display panel can be reduced, which is advantageous for the narrow bezel design; further, Since the touch electrodes and the touch wires are respectively located on different substrates (for example, the touch electrodes are located on the first substrate and the touch wires are located on the second substrate), the distance between the touch electrodes and the touch wires is relatively large, thereby The capacitance between the two is reduced, which can improve the touch sensitivity.
  • the embodiment of the invention further provides a touch display device, which comprises the touch display panel provided by any of the above embodiments.
  • the touch display device may further include necessary components such as a backlight module, a casing, a peripheral circuit board, and the like, and these components are known in the art and will not be described herein.
  • a conductive structure is disposed between the first substrate and the second substrate of the touch display panel, so that the touch electrodes on the first substrate and the touch on the second substrate
  • the control wire is electrically connected and realizes the touch function, and does not require an additional touch panel, which can simplify the structure of the TN-type touch display panel, reduce the thickness, and reduce the cost; meanwhile, the conductive structure is disposed on the first substrate and the second Between the substrates, the traces on both sides of the display panel can be reduced, which is advantageous for the narrow bezel design.
  • the touch electrodes and the touch wires are respectively located on different substrates (for example, the touch electrodes are located on the first substrate, the touch wires are Located on the second substrate, the distance between the touch electrode and the touch wire is relatively large, so that the capacitance between the two is reduced, and the touch sensitivity can be improved.

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Human Computer Interaction (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
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Abstract

一种触控显示面板和触控显示装置,以解决已知技术的TN型液晶显示面板结构复杂、厚度大、制造成本高的问题。所述触控显示面板包括相对设置的第一基板(1)和第二基板(2),所述第一基板(1)朝向所述第二基板(2)的一面形成有触控电极(3),所述第二基板(2)朝向所述第一基板(1)的一面形成有触控导线(4),所述第一基板(1)和所述第二基板(2)之间的设置有导电结构(5);其中,所述触控电极(3)通过所述导电结构(5)与所述触控导线(4)电连接。

Description

触控显示面板和触控显示装置 技术领域
本发明的实施例涉及一种触控显示面板和触控显示装置。
背景技术
随着液晶显示技术的发展,触摸屏作为最为简单、方便和自然的人机交互方式而被越来越多地应用到液晶显示领域。根据工作原理和检测触摸信息介质的不同,触摸屏可以分为电阻式、电容式、红外线式和表面声波式四种类型。电容式触摸屏技术由于工艺简单、产品寿命长、透光率高等特点成为目前主流的触摸屏技术。
已知技术中集成触控功能的扭曲向列型(Twisted Nematic,TN)型液晶显示面板的结构一般为直接在TN型液晶显示面板上设置触控板,其中液晶显示面板和触控板各包括两层衬底基板。这意味着已知的具有触控功能的TN型液晶显示面板至少需要将四层衬底基板贴合在一起,因此结构复杂、厚度大并且制造成本高。
发明内容
本发明的至少一个实施例提供一种触控显示面板和触控显示装置,以解决已知技术的TN型液晶显示面板结构复杂、厚度大并且制造成本高的问题。
一方面,本发明实施例提供一种触控显示面板,包括相对设置的第一基板和第二基板,所述第一基板朝向所述第二基板的一面形成有触控电极,所述第二基板朝向所述第一基板的一面形成有触控导线,并且所述第一基板和所述第二基板之间设置有导电结构;
其中,所述触控电极通过所述导电结构与所述触控导线电连接。
在一个实例中,所述第一基板朝向所述第二基板的一面上设置有公共电极,并且所述触控电极为所述第一基板朝向所述第二基板的一面上的公共电极的至少一部分。在一个实例中,所述第一基板上形成有多个触控电极,所述第二基板上形成有多条触控导线,每一所述触控电极至少与一条所述触控导线电连接,且每一所述触控导线仅与一个所述触控电极电连接。在一个实例中,所述导电结构形成为添加有各向异性导电材料的导电柱。在一个实例中,所述第一基板包括非透光区域,并且所述导电结构在所述第一基板上的 投影位于所述非透光区域中。
在一个实例中,所述第二基板包括非显示区域,并且所述导电结构在所述第二基板上的投影位于所述非显示区域中。
在一个实例中,所述导电结构朝向对应的触控导线的一侧设置有第一导电层并且通过所述第一导电层与所述触控导线电连接。
在一个实例中,所述导电结构与所述触控导线直接接触并电连接。
在一个实例中,所述第一导电层通过过孔连接方式与所述触控导线电连接。
在一个实例中,所述第一导电层所在层与所述触控导线所在层之间设置有绝缘层,所述绝缘层中对应于所述导电结构的位置设置有过孔。
在一个实例中,所述第一导电层为金属衬垫。
在一个实例中,所述触控导线与所述第二基板上的数据线或栅线同层设置。
在一个实例中,所述触控导线与所述第二基板上的数据线或栅线由相同材料形成。
另一方面,本发明实施例还提供一种触控显示装置,包括如上任一实施例提供的所述触控显示面板。
附图说明
以下将结合附图对本发明的实施例进行更详细的说明,以使本领域普通技术人员更加清楚地理解本发明,其中:
图1为本发明实施例提供的一种触控显示面板的结构示意图;
图2为本发明实施例提供的一种触控显示面板的结构示意图;
图3为本发明实施例提供的触控电极与触控导线电连接结构的俯视图。
具体实施方式
下面将结合本公开实施例中的附图,对本公开实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本公开一部分实施例,而不是全部的实施例。基于本公开中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本公开保护的范围。
除非另作定义,此处使用的技术术语或者科学术语应当为本公开所属领 域内具有一般技能的人士所理解的通常意义。本公开专利申请说明书以及权利要求书中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性,而只是用来区分不同的组成部分。同样,“一个”或者“一”等类似词语也不表示数量限制,而是表示存在至少一个。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接,而是可以包括电性的连接,不管是直接的还是间接的。“上”、“下”、“左”、“右”等仅用于表示相对位置关系,当被描述对象的绝对位置改变后,则该相对位置关系也相应地改变。
参见图1-2,本发明实施例提供一种触控显示面板,包括相对设置的第一基板1和第二基板2,第一基板1朝向第二基板2的一面形成有触控电极3,第二基板2朝向第一基板1的一面形成有触控导线4,第一基板1和第二基板2之间设置有导电结构5,触控电极3通过导电结构5与触控导线4电连接。
本发明的实施例中,通过在第一基板1和第二基板2之间设置导电结构5,使形成于第一基板1上的触控电极3和形成于第二基板2上的触控导线4电连接并实现触控功能,不需要额外设置触控板,能够简化触控显示面板的结构、减小厚度并降低成本;同时,由于导电结构5设置于第一基板1和第二基板2之间,能够减少显示面板两侧的走线,有利于窄边框设计;进一步地,由于触控电极3和触控导线4分别位于不同的基板(例如,触控电极3位于第一基板1,触控导线4位于第二基板2),触控电极3与自身所电连接的触控导线之外的其它触控导线或信号线之间具有较大的距离和较小的电容,能够提高触控灵敏度。
根据本发明的实施例,触控电极3可以是单独形成用于实现触控功能的电极层,也可以基于TN型显示面板的已有公共电极进行设计。
在本发明的实施例中,触控电极3为第一基板1朝向第二基板2的一面上的公共电极1’的至少一部分;即,触控电极3可为公共电极1’的一部分或者可完全由公共电极1’充当该触控电极3。例如,如图1所示,触控电极3由公共电极1’的一部分限定;而如图2所示,触控电极3同时用作公共电极1’。因此,不需要单独形成用于实现触控功能的电极层,能够减少TN型的触控显示面板的厚度。
在一个实例中,为了使触控电极3对触摸动作的检测相对准确,各触控 电极3可以设计为使其在第一基板1的垂直投影图形具有相同形状和相同面积,即,各触控电极3的形状相同且大小相等;并且同时,全部触控电极3在第一基板1上分布均匀。需要说明的是,触控电极3在第一基板1的垂直投影图形可以为任意几何图形,例如矩形。
在一个实例中,触控电极3例如可以采用分时驱动的方式传输公共电极信号和触控信号。
在一个实例中,在第一基板1上可以形成有多个触控电极3,第二基板2上可以形成有多条触控导线4,每一个触控电极3至少与一条触控导线4电连接。这也意味着,每一个触控电极3可以与一条或多条触控导线4电连接,从而可以灵活设置;当每一个触控电极3与多条触控导线4电连接时,可以减小电阻。例如,图3示出了触控电极3与触控导线4电连接结构的俯视图,其中,多个触控电极3与多条触控导线4以一一对应的方式电连接。
在一个实例中,为利于对触控信号的控制或处理,每一条触控导线4仅与一个触控电极3电连接,每一条触控导线4仅传输一个触控电极3的触控信号。
需要说明的是,在具体实施时,可以依据触控电极3的排布,由与触控电极3电连接的触控导线4分别按行和按列的顺序进行检测,从而实现触控显示面板的触控功能。
在一个实例中,导电结构5可以采用导电柱的结构。例如,导电结构5为添加有各向异性导电材料的导电柱,各向异性导电材料的导电柱可以使导电方向更有针对性。再例如,为了节省工序以及减小空间占用,可以在已有的支撑物的位置设置导电柱形状的导电结构5,即,该导电结构5同时也用于作为支撑物。
在一个实例中,为了防止导电结构5影响触控显示面板的光透过率,导电结构5在第一基板1上的投影位于基板1的非透光区域,或者,导电结构5在第二基板2上的投影位于相邻像素之间的非显示区域。
在此需要说明的是,本发明实施例中提到的非透光区域是指触控显示面板上所有不透光的区域,例如可以是黑矩阵区域,或者是面板上由信号线遮蔽的区域,或者具有薄膜晶体管的区域。而本发明实施例中提到的非显示区域是指触控显示面板上不进行显示的区域,例如,可以是黑矩阵区域、周边电路区域等。例如,如图1-2所示,导电结构5在第一基板1上的投影可以 位于黑矩阵10的遮挡区域,但本领域技术人员应该能理解,这仅是示例性的而非限制性的。
本发明的实施例中,可以根据不同的设计需要而灵活地选择导电结构5和触控导线4之间电连接的方式。例如,导电结构5可以通过第一导电层7与触控导线4电连接;又例如,导电结构5可以与触控导线4直接接触并电连接。
在通过第一导电层7进行电连接的实例中,该第一导电层7可以通过过孔连接方式与触控导线4电连接。例如,如图1-2所示,第一导电层7可设置在导电结构5的一端,并且第一导电层7所在层与触控导线4所在层之间设置有绝缘层6,该绝缘层6形成有多个过孔6’(为简化起见,图1-2中仅示出了一个过孔),该多个过孔6’与导电结构5的位置一一对应,第一导电层7通过这些过孔6’与触控导线4电连接。
本发明的实施例中,第一导电层7可以选用任意已知的具有导电性能的材料,例如透明导电材料或金属材料。例如,为了使触控检测线路的电阻较小,第一导电层7可为金属衬垫。
本发明的实施例中,为了使触控显示面板具有更小的厚度或者基于简化制备工序考虑,触控导线4可以与数据线8或栅线、公共电极线(未示出)同层设置;在某些实施例中,触控导线4还可以与数据线8、栅线或公共电极线(未示出)具有相同的材料,这样,触控导线4可以和其他信号线一起形成,进一步节省工艺并且降低成本。
需要说明的是,在本发明的一些实施例中,所述触控显示面板还可以包括其它元件或层级结构;例如形成于第一基板1上的色阻9,形成于第二基板2上的薄膜晶体管11、栅极绝缘层12、像素电极13以及第一基板1和第二基板2之间的液晶14等,这些组件在本领域是已知的,在此不再赘述。
需要说明的是,在本发明的一些实施例中,所述触控显示面板为自容式触控显示面板,可以用作自容式的TN型的触控显示面板,当然,本实施例提供的触控显示面板可进行各种变型以用作其它类型的自容式触控显示面板。
如上所述,根据本发明实施例的触控显示面板中,在第一基板和第二基板之间设置导电结构,使第一基板上的触控电极和第二基板上的触控导线电连接并实现触控功能,不需要额外设置触控板,能够简化TN型的触控显示 面板的结构、减小厚度并降低成本;同时,以设置于第一基板和第二基板之间的导电结构作为导体,能够减少显示面板两侧的走线,有利于窄边框设计;进一步地,由于触控电极和触控导线分别位于不同的基板(例如,触控电极位于第一基板,触控导线位于第二基板),触控电极和触控导线之间的距离相对较大,从而使二者之间的电容减小,能够提高触控灵敏度。
本发明实施例还提供一种触控显示装置,包括如上任一实施例提供的触控显示面板。当然,该触控显示装置还可以包括背光模组、壳体、外围电路板等必要的组件,这些组件在本领域是已知的,在此不再赘述。
如上所述,根据本发明实施例的触控显示装置中,触控显示面板的第一基板和第二基板之间设置导电结构,使第一基板上的触控电极和第二基板上的触控导线电连接并实现触控功能,不需要额外设置触控板,能够简化TN型的触控显示面板结构,减小厚度,并降低成本;同时,由于导电结构设置于第一基板和第二基板之间,能够减少显示面板两侧的走线,有利于窄边框设计;进一步地,由于触控电极和触控导线分别位于不同的基板(例如,触控电极位于第一基板,触控导线位于第二基板),触控电极和触控导线之间的距离相对较大,从而使二者之间的电容减小,能够提高触控灵敏度。
以上所述仅为本发明的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内可轻易想到的变化或替换都应涵盖在本发明的保护范围之内。因此,本发明的保护范围应以所述权利要求的保护范围为准。
本申请要求于2015年9月29日提交的名称为“一种触控显示面板和触控显示装置”的中国专利申请No.201510634755.1的优先权,该申请全文以引用方式合并于本文。

Claims (14)

  1. 一种触控显示面板,包括相对设置的第一基板和第二基板,其中,所述第一基板朝向所述第二基板的一面形成有触控电极,所述第二基板朝向所述第一基板的一面形成有触控导线,并且所述第一基板和所述第二基板之间设置有导电结构;
    其中,所述触控电极通过所述导电结构与所述触控导线电连接。
  2. 如权利要求1所述的触控显示面板,其中,所述第一基板朝向所述第二基板的一面上设置有公共电极,并且所述触控电极形成为所述公共电极的至少一部分。
  3. 如权利要求1所述的触控显示面板,其中,所述第一基板上形成有多个触控电极,所述第二基板上形成有多条触控导线,每一所述触控电极至少与一条所述触控导线电连接,且每一所述触控导线仅与一个所述触控电极电连接。
  4. 如权利要求1所述的触控显示面板,其中,所述导电结构形成为包含各向异性导电材料的导电柱。
  5. 如权利要求1至4中任一项所述的触控显示面板,其中,所述第一基板包括非透光区域,并且所述导电结构在所述第一基板上的投影位于所述非透光区域中。
  6. 如权利要求1至4中任一项所述的触控显示面板,其中,所述第二基板包括非显示区域,并且所述导电结构在所述第二基板上的投影位于所述非显示区域中。
  7. 如权利要求1-6所述的触控显示面板,其中,所述导电结构朝向对应的触控导线的一侧设置有第一导电层并且通过所述第一导电层与所述触控导线电连接。
  8. 如权利要求1-6所述的触控显示面板,其中,所述导电结构与所述触控导线直接接触并电连接。
  9. 如权利要求7所述的触控显示面板,其中,所述第一导电层通过过孔连接方式与所述触控导线电连接。
  10. 如权利要求9所述的触控显示面板,其中,所述第一导电层所在层与所述触控导线所在层之间设置有绝缘层,所述绝缘层中对应于所述导电结构的位置设置有过孔。
  11. 如权利要求7、9和10中任一项所述的触控显示面板,其中,所述第一导电层为金属衬垫。
  12. 如权利要求1-11所述的触控显示面板,其中,所述触控导线与所述第二基板上的数据线或栅线同层设置。
  13. 如权利要求1-12所述的触控显示面板,其中,所述触控导线与所述第二基板上的数据线或栅线由相同材料形成。
  14. 一种触控显示装置,其特征在于,包括如权利要求1至13中任一项所述的触控显示面板。
PCT/CN2016/075649 2015-09-29 2016-03-04 触控显示面板和触控显示装置 Ceased WO2017054414A1 (zh)

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