WO2016101511A1 - 内嵌式触控显示屏及显示装置 - Google Patents

内嵌式触控显示屏及显示装置 Download PDF

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Publication number
WO2016101511A1
WO2016101511A1 PCT/CN2015/079121 CN2015079121W WO2016101511A1 WO 2016101511 A1 WO2016101511 A1 WO 2016101511A1 CN 2015079121 W CN2015079121 W CN 2015079121W WO 2016101511 A1 WO2016101511 A1 WO 2016101511A1
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Prior art keywords
touch
display screen
conductive strip
electrode
touch electrode
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PCT/CN2015/079121
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English (en)
French (fr)
Inventor
曲连杰
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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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Priority to US14/892,312 priority Critical patent/US10459563B2/en
Publication of WO2016101511A1 publication Critical patent/WO2016101511A1/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
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0445—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/13338—Input devices, e.g. touch panels
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—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
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136204—Arrangements to prevent high voltage or static electricity failures
    • 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
    • G06F2203/04107—Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/40—OLEDs integrated with touch screens

Definitions

  • Embodiments of the present invention relate to an in-cell touch display screen and display device.
  • Touch screen also known as "touch screen” is the most simple, convenient and natural way of human-computer interaction. It gives multimedia a new look and is an attractive new multimedia interactive device.
  • the in-cell touch display is to place the touch electrodes inside the display. Since the in-cell touch display is lighter and thinner, it is more and more widely used in the display field.
  • the liquid crystal display includes an array substrate, a color filter substrate, and a liquid crystal between the array substrate and the color filter substrate.
  • the touch driving electrode (Tx) and the touch sensing electrode (Rx) are formed on the array substrate or the color film substrate, and after the array substrate and the color film substrate are paired with the box, the touch driving electrode is And the touch sensing electrode is located in the liquid crystal cell formed by the array substrate and the color film substrate pair box.
  • the embedded touch liquid crystal display usually has a conductive layer on the outer surface of the color filter substrate behind the box.
  • a conductive layer In order to make the conductive layer have a good effect of preventing external electromagnetic waves or static electricity, a conductive layer generally provided has good conductivity. The better the conductivity of the conductive layer, the more the touch signal can be shielded, which seriously causes the touch function to fail.
  • the embodiment of the invention provides an in-cell touch display screen and a display device.
  • the in-cell touch display not only can prevent external electromagnetic waves and static interference, but also does not shield the touch signal.
  • the embodiment of the invention provides an in-cell touch display screen, comprising: an upper substrate and a lower substrate of the pair of boxes, and a plurality of first touch electrodes on the upper substrate and/or the lower substrate that are not in contact with each other
  • the display screen includes an image display area; the light-emitting side of the upper substrate is provided with an electrostatic protection layer, and the static electricity protection layer includes a plurality of hollow regions corresponding to the image display area.
  • the embodiment of the invention further provides a display device, which comprises the in-cell touch display screen according to any one of the embodiments of the invention.
  • FIG. 1 is a schematic diagram of an in-cell touch display screen according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of an electrostatic protection layer of the in-cell touch display screen of FIG. 1;
  • FIG. 3a is a schematic diagram of another electrostatic protection layer of the in-cell touch display screen of FIG. 1;
  • 3b is a schematic diagram of a connection line disposed on one side of a first conductive strip in an electrostatic protection layer of an in-cell touch display screen according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of another in-cell touch display screen according to an embodiment of the present invention.
  • FIG. 5 is a front projection view of the electrostatic protection layer and the first touch electrode of the in-cell touch display screen of FIG. 4;
  • FIG. 6a is a schematic diagram of another electrostatic protection layer according to an embodiment of the present invention.
  • FIG. 6b is a schematic diagram showing a connecting line on one side of a first conductive strip and a second conductive strip in an electrostatic protection layer according to an embodiment of the invention
  • FIG. 7 is a front elevational view of the static protection layer and the first touch electrode and the second touch electrode shown in FIG. 6a.
  • An embodiment of the present invention provides an in-cell touch display screen, as shown in FIG. 1 , including an upper substrate 10 and a lower substrate 20 of the pair of boxes, and a plurality of the upper substrate 10 and/or the lower substrate 20 are not in contact with each other.
  • the first touch electrode 11 and the second touch electrode 21 intersect with the first touch electrode 11 and the second touch electrode 21, and the display screen includes the image display area 1 and the frame area 2.
  • the bezel area 2 abuts and surrounds the display area 1.
  • the inner rectangular frame shown in FIG. 2 is a display area, and the area between the inner rectangular frame and the outer rectangular frame is a border area.
  • the light-emitting side of the upper substrate 10 is provided with an electrostatic protection layer 12.
  • the static electricity protection layer 12 includes a plurality of hollow regions 120 in the corresponding image display area 1.
  • the hollowed out area is the area where the electrostatic protection layer does not cover the upper substrate.
  • the area in which the surface of the electrostatic protection layer is not covered by the upper substrate may be any other shape, which is not specifically limited in the embodiment of the present invention.
  • the hollowed out area can be formed, for example, by a patterning process.
  • the patterning process may include only a photolithography process, or may include a photolithography process and an etching process, and may also include other processes for forming a predetermined pattern, such as printing, inkjet, and the like.
  • the photolithography process refers to a process of forming a pattern by using a photoresist, a mask, an exposure machine, or the like including a process of film formation, exposure, and development.
  • the corresponding patterning process can be selected in accordance with the structure formed in the embodiments of the present invention.
  • the first touch electrode and the second touch electrode may be a touch driving electrode and a touch sensing electrode, respectively.
  • the first touch electrode is a touch sensing electrode
  • the second touch electrode is a touch driving electrode as an example.
  • the first touch electrode is located above the second touch electrode.
  • the first touch electrode is located on the upper substrate, and the second touch electrode is located on the lower substrate.
  • the in-cell touch display panel includes a plurality of first touch electrodes and second touch electrodes that are not in contact with each other on the upper substrate and/or the lower substrate, and may be, for example, a plurality of first touch electrodes and a plurality of strips.
  • the second touch is located on the upper substrate; the plurality of first touch electrodes and the plurality of second touch electrodes are respectively located on the lower substrate; and the plurality of first touch electrodes and the plurality of second touch electrodes are further
  • the two substrates are located on the upper substrate and the lower substrate, and the plurality of first touch electrodes are located on the upper substrate, and the plurality of second touch electrodes are located on the lower substrate.
  • the strip first touch electrodes are located on the lower substrate.
  • the embodiment of the present invention “upper” and “lower” are relative to the light propagation direction displayed by the display screen, that is, the light exiting side is upper and the light entering side is lower.
  • the embodiment of the present invention and the accompanying drawings each take the display screen as a liquid crystal display.
  • the upper substrate 10 is a color film substrate
  • the lower substrate 20 is an array substrate
  • the display screen further includes a liquid crystal 30 between the upper substrate 10 and the lower substrate 20 , and the light emitted by the backlight passes through the array substrate. It is sequentially emitted through the liquid crystal and the color filter substrate.
  • An in-cell touch display screen provided by an embodiment of the present invention, the light emitting side of the substrate on the display screen
  • An electrostatic protection layer is disposed.
  • the electrostatic protection layer includes a plurality of hollow regions in the corresponding image display area, so as to prevent the electrostatic protection layer from shielding the touch sensing signals of the first touch electrode and the second touch electrode, that is, the electrostatic protection layer may be Ensure the sensitivity of touch sensing and avoid touch failure.
  • the static electricity protection layer may be grounded or connected to other conductive wires to prevent external static electricity and electromagnetic waves.
  • the electrostatic protection layer in the embodiment of the present invention uses, for example, a transparent conductive material capable of deriving static electricity, for example, a transparent conductive material including carbon nanotubes, graphene, transparent metal, transparent metal oxide, and the like.
  • Transparent metals include, for example, silver nanowires.
  • the transparent metal oxide includes, for example, indium tin oxide.
  • the present invention does not specifically limit this.
  • the static electricity protection layer 12 includes a plurality of electrically connected first conductive strips 121.
  • the position of the first conductive strips 121 corresponds to the position of the first touch electrodes 11.
  • the first conductive strip is corresponding to the position of the first touch electrode, and the first conductive strip is a hollow area, which is beneficial to the first touch electrode and the second touch electrode.
  • the hollow area senses touch information.
  • the area corresponding to the first conductive strip of the image protection area corresponding to the electrostatic protection layer is a hollow area.
  • the plurality of first conductive strips may be electrically connected, for example, through a first connecting line 15 disposed on one side of the first conductive strip. As shown in FIG. 3b, the plurality of first conductive strips and the first connecting line 15 respectively connection.
  • the connecting line may be grounded or electrically connected to the capacitor or the like, so that the first conductive strip acts to prevent external static electricity and electromagnetic waves and the like.
  • the first connection line may be disposed in the same layer as the first conductive strip.
  • the plurality of first conductive strips may be electrically connected in other manners, which is not specifically limited in the present invention.
  • the first conductive strips are in one-to-one correspondence with the first touch electrodes. That is, a first conductive strip is disposed at a corresponding position of each of the first touch electrodes.
  • the width of the first conductive strip 121 is smaller than the width of the first touch electrode 11 , and the orthographic projection of the first conductive strip 121 on the first touch electrode 11 is located at the first touch electrode.
  • the first conductive strip 121 corresponds to the portion of the first touch electrode 11.
  • the orthographic projection of the first conductive strip is located in the area of the first touch electrode, and is not projected on the gap position of the first touch electrode, which is beneficial for the first touch electrode and the second touch electrode to sense the touch information.
  • the first conductive strip may shield the touch signal because the first conductive strip corresponds to a portion of the first touch electrode.
  • the width of the first conductive strip is made smaller than the width of the first touch electrode to facilitate sensing touch information.
  • the width of the first conductive strip is smaller than the width of the first touch electrode.
  • One side is aligned with the first touch electrode. As shown in FIG. 4 and FIG. 5 , the first touch electrodes 11 extend beyond the front projection area of the first conductive strip 121 on the first touch electrode 11 on both sides in the width direction.
  • both sides of the first touch electrode protrude from the first conductive strip In this way, a touch signal is generated on both sides of the first touch electrode, which is beneficial to sensing the touch information.
  • the ESD protection layer 12 includes a plurality of electrically connected first conductive strips 121, and further includes a plurality of electrically connected second conductive strips 122, the position of the second conductive strips 122 and the second touch electrode.
  • the position of 21 corresponds.
  • the first conductive strip 121 and the second conductive strip 122 are perpendicular to each other as shown in FIG. 6a.
  • the second conductive strips are in one-to-one correspondence with the second touch electrodes. That is, a second conductive strip is disposed at a corresponding position of each of the second touch electrodes.
  • the area of the electrostatic protection layer corresponding to the image display area except the first conductive strip and the second conductive strip is a hollow area.
  • the plurality of first conductive strips may be electrically connected, for example, through a first connecting line 15 disposed on one side of the first conductive strip, and the plurality of second conductive strips may be disposed, for example, by being disposed in the second
  • the second connecting lines 16 on one side of the conductive strips are electrically connected, and the plurality of first conductive strips are respectively connected to the first connecting lines 15 , and the plurality of second conductive strips are respectively connected to the second connecting lines 16 .
  • the first connection line and the second connection line may or may not be connected.
  • the first connecting line and the second connecting line may be grounded or electrically connected to the capacitor or the like, so that the first conductive strip and the second conductive strip serve to prevent external static electricity and electromagnetic waves and the like from interfering.
  • the first connection line may be disposed in the same layer as the first conductive strip.
  • the second connection line may be disposed in the same layer as the second conductive strip. When the first conductive strip and the second conductive strip are disposed in the same layer, the first conductive strip, the second conductive strip, the first connecting line and the second connecting line may be disposed in the same layer.
  • the plurality of first conductive strips may be electrically connected by other means, and the plurality of second conductive strips may be electrically connected. The present invention does not specifically limit this.
  • the first conductive strip and the second conductive strip are disposed in the same layer, that is, the first conductive strip and the second conductive strip may be formed by using the same layer of film by one patterning process.
  • the first conductive strip and the second conductive strip intersect, and the first conductive strip and the second conductive strip are electrically connected, because the second conductive strip corresponds to the second touch electrode position, and the first conductive strip corresponds to the first touch electrode position.
  • the first conductive strip and the second conductive strip are grounded or electrically connected to the capacitor, and the first conductive strip and the second conductive strip together prevent interference of external static electricity and electromagnetic waves.
  • the width of the second conductive strip 122 is smaller than the width of the second touch electrode 21 , and the orthographic projection of the second conductive strip 122 on the second touch electrode 21 is located in the area of the second touch electrode 21 .
  • the second conductive strip 122 corresponds to a partial area of the second touch electrode 122.
  • Second conductive strip The orthographic projection is located in the area of the second touch electrode and is not projected on the gap position of the second touch electrode, which is beneficial for the second touch electrode to receive the touch information.
  • the second conductive strip may shield the touch signal in the portion of the second conductive strip 122 corresponding to the second touch electrode 21, for example, the width of the first conductive strip is smaller than the width of the first touch electrode, and the second conductive The width of the strip is smaller than the width of the second touch electrode to facilitate receiving touch information. As shown in FIG. 7 , for example, the second touch electrodes 21 extend beyond the orthographic projection area of the second conductive strip 122 on the second touch electrode 21 on both sides in the width direction.
  • both sides of the second touch electrode protrude from the second conductive strip Therefore, the touch signal is generated on the gap between the two sides of the second touch electrode, which is beneficial to the first touch electrode to sense the touch information.
  • the electrostatic protection layer includes a conductive strip corresponding to the touch electrode, and the area of the conductive strip is relatively small relative to the electrostatic protection layer as shown in FIG. 2, and corresponds to the position of the touch electrode to avoid static electricity.
  • the protective layer pattern is formed in other areas to reduce the transmittance of the display device.
  • the embodiment of the invention further provides a display device, which comprises any of the above-mentioned in-cell touch display screens provided by the embodiments of the invention.
  • the display device may be a display device such as a liquid crystal display, an electronic paper, an OLED (Organic Light-Emitting Diode) display, or a television, a digital camera, a mobile phone, a watch, a tablet, or a notebook computer including the display device. , navigation, etc. Any product or component that has a display function.
  • a display device such as a liquid crystal display, an electronic paper, an OLED (Organic Light-Emitting Diode) display, or a television, a digital camera, a mobile phone, a watch, a tablet, or a notebook computer including the display device. , navigation, etc. Any product or component that has a display function.
  • An embodiment of the present invention provides an in-cell touch display screen and a display device.
  • the light-emitting side of the upper substrate of the in-cell touch display screen is provided with an electrostatic protection layer, and the electrostatic protection layer includes a plurality of corresponding image display areas.
  • the electrostatic protection layer includes an area that does not cover the upper substrate, so that the electrostatic protection layer can shield the touch sensing signals of the first touch electrode and the second touch electrode. That is to say, the electrostatic protection layer acts on the one hand to prevent external static electricity and electromagnetic waves, and on the other hand ensures the sensitivity of the touch sensing and avoids touch failure.

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  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Nonlinear Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Mathematical Physics (AREA)
  • Liquid Crystal (AREA)
  • Position Input By Displaying (AREA)
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  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

一种内嵌式触控显示屏及显示装置。该内嵌式触控显示屏，包括对盒的上基板（10）和下基板（20），以及多条位于所述上基板（10）和/或所述下基板（20）上互不接触的第一触控电极（11）和第二触控电极（21），所述显示屏包括图像显示区（1）；所述上基板（10）的出光侧设置有静电防护层（12），所述静电防护层（12）在对应所述图像显示区（1）包括多个镂空区域（120）。该内嵌式触控显示屏可解决通常的内嵌式触控显示屏静电防护层有可能屏蔽触控信号的问题。

Description

内嵌式触控显示屏及显示装置 技术领域
本发明的实施例涉及一种内嵌式触控显示屏及显示装置。
背景技术
触控屏(touch screen)又称为“触摸屏”，是目前最简单、方便、自然的一种人机交互方式。它赋予了多媒体以崭新的面貌，是极富吸引力的全新多媒体交互设备。内嵌式触控显示屏是将触控电极设置在显示屏的内部。由于内嵌式触控显示屏更加轻薄，故在显示领域得到越来越广泛的应用。
以内嵌式的触控液晶显示屏为例，液晶显示屏包括阵列基板、彩膜基板以及位于阵列基板和彩膜基板之间的液晶。阵列基板和彩膜基板对盒之前，在阵列基板或彩膜基板上形成触控驱动电极(Tx)和触控感应电极(Rx)，则阵列基板和彩膜基板对盒之后，触控驱动电极和触控感应电极位于阵列基板和彩膜基板对盒形成的液晶盒内。
内嵌式的触控液晶显示屏为了防止外界静电，通常在对盒后的彩膜基板的外表面上设置一层导电层。为了使得该导电层具有好的防止外界电磁波或静电的效果，一般设置的导电层具有好的导电性。而该导电层的导电性越好，越能屏蔽触控信号，严重的会导致触控功能失效。
发明内容
本发明的实施例提供一种内嵌式触控显示屏及显示装置，该内嵌式触控显示屏不仅能很好的防止外界电磁波和静电干扰，又不会屏蔽触控信号。
本发明实施例提供一种内嵌式触控显示屏，包括对盒的上基板和下基板，以及多条位于所述上基板和/或所述下基板上互不接触的第一触控电极和第二触控电极，所述显示屏包括图像显示区；所述上基板的出光侧设置有静电防护层，所述静电防护层在对应所述图像显示区包括多个镂空区域。
本发明实施例还提供一种显示装置，包括本发明实施例提供的任一所述的内嵌式触控显示屏。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例提供的一种内嵌式触控显示屏示意图；
图2为图1所述的内嵌式触控显示屏的一种静电防护层示意图；
图3a为图1所述的内嵌式触控显示屏的另一种静电防护层示意图；
图3b为本发明实施例提供的内嵌式触控显示屏的静电防护层中在第一导电条的一侧设置连接线的示意图；
图4为本发明实施例提供的另一种内嵌式触控显示屏示意图；
图5为图4所述的内嵌式触控显示屏的静电防护层与第一触控电极的正投影示意图；
图6a为本发明实施例提供的另一种静电防护层示意图；
图6b为本发明实施例提供的一种静电防护层中第一导电条及第二导电条的一侧均设置连接线的示意图；
图7为图6a所示的静电防护层与第一触控电极以及第二触控电极的正投影示意图。
附图标记：
1-显示区；2-边框区；10-上基板；11-第一触控电极；12-静电防护层；15-第一连接线；16-第二连接线；20-下基板；21-第二触控电极；30-液晶；120-镂空区域；121-第一导电条；122-第二导电条。
具体实施方式
下面将结合本发明实施例中的附图，对本发明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发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动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。
本发明实施例提供一种内嵌式触控显示屏，如图1所示，包括对盒的上基板10和下基板20，以及多条位于上基板10和/或下基板20上互不接触的 第一触控电极11和第二触控电极21，第一触控电极11和第二触控电极21交叉，显示屏包括图像显示区1和边框区2。边框区2邻接且环绕显示区1。图2所示内侧矩形框内为显示区，内侧矩形框以及外侧矩形框之间的区域为边框区。
上基板10的出光侧设置有静电防护层12，如图2所示，静电防护层12在对应图像显示区1包括多个镂空区域120。镂空区域即静电防护层未覆盖上基板的区域。当然，静电防护层未覆盖上基板的区域还可以是其他任何形状，本发明实施例不作具体限定。
镂空区域例如可通过构图工艺形成。例如，构图工艺，可只包括光刻工艺，或包括光刻工艺以及刻蚀步骤，同时还可以包括打印、喷墨等其他用于形成预定图形的工艺。光刻工艺，是指包括成膜、曝光、显影等工艺过程的利用光刻胶、掩模板、曝光机等形成图形的工艺。可根据本发明的实施例中所形成的结构选择相应的构图工艺。
需要说明的是，第一触控电极和第二触控电极可以分别为触控驱动电极和触控感应电极。且本发明实施例中，以所述第一触控电极为触控感应电极，第二触控电极为触控驱动电极为例进行详细说明。例如，第一触控电极位于第二触控电极的上面。第一触控电极位于上基板，第二触控电极位于下基板。
所述内嵌式触控显示屏包括多条位于上基板和/或下基板上互不接触的第一触控电极和第二触控电极，例如可以是多条第一触控电极和多条第二触控均位于上基板；也可以是多条第一触控电极和多条第二触控电极均位于下基板；还可以是多条第一触控电极和多条第二触控电极分别位于上基板和下基板，即包括两种情况，多条第一触控电极位于上基板，多条第二触控电极位于下基板；或者，多条第二触控电极位于上基板，多条第一触控电极位于下基板。
需要说明的是，本发明实施例中所述“上”、“下”是相对于显示屏显示的光传播方向而言，即出光侧为上，入光侧为下。本发明实施例及附图均以显示屏为液晶显示屏为例。则如图1所示，上基板10为彩膜基板，下基板20为阵列基板，显示屏还包括位于上基板10和下基板20之间的液晶30，背光源发出的光经过阵列基板后再依次经过液晶以及彩膜基板发出。
本发明实施例提供的一种内嵌式触控显示屏，该显示屏上基板的出光侧 设置有静电防护层，静电防护层在对应图像显示区包括多个镂空区域，可避免静电防护层屏蔽第一触控电极和第二触控电极的触控感应信号，即静电防护层一方面可保证触控感应的灵敏性，避免触控失灵。另一方面，静电防护层可以是通过接地或者连接其他导电线等，起到防止外界静电以及电磁波等的干扰作用。
需要说明的是，本发明实施例中的静电防护层例如采用可将静电导出的透明导电材料，例如包括碳纳米管、石墨烯、透明的金属、透明的金属氧化物等透明导电材料。透明的金属例如包括银纳米线。透明的金属氧化物例如包括氧化铟锡。当然，只要是能将静电导出的透明导电材料即可，本发明对此不作具体限定。
例如，如图3a所示，静电防护层12包括多条电连接的第一导电条121，第一导电条121的位置与第一触控电极11的位置相对应。由于在触控电极之间产生触控信号，将第一导电条与第一触控电极位置对应，第一导电条之间为镂空区域，有利于第一触控电极和第二触控电极在镂空区域感应触控信息。静电防护层对应图像显示区除第一导电条之外的区域即为镂空区域。
例如，多条第一导电条例如可以是通过设置在第一导电条的一侧的第一连接线15电连接，如图3b所示，多条第一导电条分别与该第一连接线15连接。该连接线可以是接地或者与电容电连接等，以使得第一导电条起到防止外界静电以及电磁波等的干扰作用。第一连接线可与第一导电条同层设置。亦可采用其他方式将多条第一导电条电连接，本发明对此不作具体限定。
例如，第一导电条与第一触控电极一一对应。即在每一条第一触控电极的对应位置处设置有一条第一导电条。
例如，如图4、图5所示，第一导电条121的宽度小于第一触控电极11的宽度，第一导电条121在第一触控电极11上的正投影位于第一触控电极11的区域内，即第一导电条121对应覆盖部分第一触控电极11。第一导电条的正投影位于第一触控电极的区域内，而未投影在第一触控电极的间隙位置，有利于第一触控电极和第二触控电极感应触控信息。
由于在第一导电条对应覆盖第一触控电极的部分区域，第一导电条可能屏蔽触控信号。例如，使得第一导电条的宽度小于第一触控电极的宽度，以有利于感应触控信息。且第一导电条的宽度小于第一触控电极的宽度可以是 一侧与第一触控电极对齐。，如图4、图5所示，第一触控电极11在宽度方向上两侧均超出第一导电条121在第一触控电极11上的正投影区域。由于第一触控电极和第二触控电极主要通过第一触控电极和第二触控电极的边缘部分感应触控信号，则第一触控电极的两侧均凸出于第一导电条，这样在第一触控电极的两侧产生触控信号，有利于感应触控信息。
例如，如图6a所示，静电防护层12包括多条电连接的第一导电条121，还包括多条电连接的第二导电条122，第二导电条122的位置与第二触控电极21的位置相对应。图6a所示的以第一导电条121和第二导电条122相互垂直为例。进一步的，第二导电条与第二触控电极一一对应。即在每一条第二触控电极的对应位置处设置有一条第二导电条。静电防护层对应图像显示区除第一导电条和第二导电条之外的区域即为镂空区域。
例如，如图6b所示，多条第一导电条例如可以是通过设置在第一导电条的一侧的第一连接线15电连接，多条第二导电条例如可以是通过设置在第二导电条的一侧的第二连接线16电连接，多条第一导电条分别与第一连接线15连接，多条第二导电条分别与第二连接线16连接。第一连接线和第二连接线可以相连，也可以不相连。第一连接线和第二连接线可以是接地或者与电容电连接等，以使得第一导电条及第二导电条起到防止外界静电以及电磁波等的干扰作用。第一连接线可与第一导电条同层设置。第二连接线可与第二导电条同层设置。当第一导电条和第二导电条同层设置时，则第一导电条、第二导电条、第一连接线及第二连接线可均同层设置。亦可采用其他方式将多条第一导电条电连接，多条第二导电条电连接，本发明对此不作具体限定。
例如，第一导电条和第二导电条同层设置，即第一导电条和第二导电条可以是通过一次构图工艺利用同一层薄膜形成。由于第二导电条与第二触控电极位置对应，第一导电条与第一触控电极位置对应，则第一导电条和第二导电条交叉，第一导电条和第二导电条电连接，第一导电条和第二导电条接地或者与电容电连接等，第一导电条和第二导电条共同起到防止外界静电以及电磁波等的干扰作用。
例如，如图7所示，第二导电条122的宽度小于第二触控电极21的宽度，第二导电条122在第二触控电极21上的正投影位于第二触控电极21的区域内，即第二导电条122对应覆盖第二触控电极122的部分区域。第二导电条 的正投影位于第二触控电极的区域内，而未投影在第二触控电极的间隙位置，有利于第二触控电极接收触控信息。
由于在第二导电条122对应覆盖第二触控电极21的部分，第二导电条可能屏蔽触控信号，例如，同第一导电条的宽度小于第一触控电极的宽度相同，第二导电条的宽度小于第二触控电极的宽度，以有利于接收触控信息。如图7所示，例如，第二触控电极21在宽度方向上两侧均超出第二导电条122在第二触控电极21上的正投影区域。由于第一触控电极和第二触控电极主要通过第一触控电极和第二触控电极的边缘部分感应触控信号，则第二触控电极的两侧均凸出于第二导电条，这样在第二触控电极两侧的间隙产生触控信号，有利于第一触控电极感应触控信息。
另一方面，静电防护层包括与触控电极对应的导电条，则相对于如图2所示的静电防护层，该导电条的面积相对较小，且与触控电极位置对应，可避免静电防护层图案形成在其他区域降低显示装置的透过率。
本发明实施例还提供一种显示装置，包括本发明实施例提供的上述任一内嵌式触控显示屏。
例如，所述显示装置可以为液晶显示器、电子纸、OLED(Organic Light-Emitting Diode,有机发光二极管)显示器等显示器件以及包括这些显示器件的电视、数码相机、手机、手表、平板电脑、笔记本电脑、导航仪等任何具有显示功能的产品或者部件。
本发明的实施例提供一种内嵌式触控显示屏及显示装置，所述内嵌式触控显示屏的上基板的出光侧设置静电防护层，静电防护层在对应图像显示区包括多个镂空区域，则一方面防止外界静电以及电磁波等的干扰作用，静电防护层包括未覆盖上基板的区域，可避免静电防护层屏蔽第一触控电极和第二触控电极的触控感应信号，即静电防护层一方面起到防止外界静电以及电磁波等的干扰作用，另一方面保证了触控感应的灵敏性，避免触控失灵。
除非另作定义，此处使用的技术术语或者科学术语应当为本发明所属领域内具有一般技能的人士所理解的通常意义。本公开中使用的“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”、“一”或者“该”等类似词语也不表示数量限制，而是表示存在至少一个。“包括”或者“包含”等类似的词语意指出现 该词前面的元件或者物件涵盖出现在该词后面列举的元件或者物件及其等同，而不排除其他元件或者物件。“上”、“下”等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则该相对位置关系也可能相应地改变。
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。
本专利申请要求于2014年12月24日递交的中国专利申请201410818510.X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 (15)

  1. 一种内嵌式触控显示屏，包括对盒的上基板和下基板，以及多条位于所述上基板和/或所述下基板上互不接触的第一触控电极和第二触控电极，其中，所述显示屏包括图像显示区，所述上基板的出光侧设置有静电防护层，所述静电防护层在对应所述图像显示区包括多个镂空区域。
  2. 根据权利要求1所述的内嵌式触控显示屏，其中，所述静电防护层包括多条电连接的第一导电条，所述第一导电条的位置与所述第一触控电极的位置相对应。
  3. 根据权利要求2所述的内嵌式触控显示屏，其中，所述第一导电条与所述第一触控电极一一对应。
  4. 根据权利要求2或3所述的内嵌式触控显示屏，其中，所述第一导电条的宽度小于所述第一触控电极的宽度，且所述第一导电条在所述第一触控电极上的正投影位于所述第一触控电极的区域内。
  5. 根据权利要求4所述的内嵌式触控显示屏，其中，所述第一触控电极在宽度方向上两侧均超出所述第一导电条在所述第一触控电极上的正投影区域。
  6. 根据权利要求2所述的内嵌式触控显示屏，其中，多条所述第一导电条通过设置在第一导电条的一侧的第一连接线电连接。
  7. 根据权利要求2所述的内嵌式触控显示屏，其中，所述静电防护层还包括多条电连接的第二导电条，所述第二导电条的位置与所述第二触控电极的位置相对应。
  8. 根据权利要求7所述的内嵌式触控显示屏，其中，所述第二导电条与所述第二触控电极一一对应。
  9. 根据权利要求7或8所述的内嵌式触控显示屏，其中，所述第二导电条的宽度小于所述第二触控电极的宽度，且所述第二导电条在所述第二触控电极上的正投影位于所述第二触控电极的区域内。
  10. 根据权利要求9所述的内嵌式触控显示屏，其中，所述第二触控电极在宽度方向上两侧均超出所述第二导电条在所述第二触控电极上的正投影区域。
  11. 根据权利要求7所述的内嵌式触控显示屏，其中，多条所述第一导电条通过设置在第一导电条的一侧的第一连接线电连接，多条所述第二导电条通过设置在第二导电条的一侧的第二连接线电连接。
  12. 根据权利要求7或8所述的内嵌式触控显示屏，其中，所述第一导电条和所述第二导电条同层设置。
  13. 根据权利要求1所述的内嵌式触控显示屏，其中，所述第一触控电极为触控感应电极，所述第二触控电极为触控驱动电极，所述第一触控电极位于所述第二触控电极的上面。
  14. 根据权利要求13所述的内嵌式触控显示屏，其中，所述第一触控电极位于所述上基板，所述第二触控电极位于所述下基板。
  15. 一种显示装置，包括权利要求1-14任一项所述的内嵌式触控显示屏。
PCT/CN2015/079121 2014-12-24 2015-05-15 内嵌式触控显示屏及显示装置 WO2016101511A1 (zh)

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