WO2015070596A1 - 触控结构、液晶面板以及显示装置 - Google Patents

触控结构、液晶面板以及显示装置 Download PDF

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Publication number
WO2015070596A1
WO2015070596A1 PCT/CN2014/079367 CN2014079367W WO2015070596A1 WO 2015070596 A1 WO2015070596 A1 WO 2015070596A1 CN 2014079367 W CN2014079367 W CN 2014079367W WO 2015070596 A1 WO2015070596 A1 WO 2015070596A1
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WIPO (PCT)
Prior art keywords
signal line
thin film
liquid crystal
film transistor
crystal panel
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Ceased
Application number
PCT/CN2014/079367
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English (en)
French (fr)
Inventor
周晓东
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BOE Technology Group Co Ltd
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BOE Technology Group Co Ltd
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Priority to US14/409,337 priority Critical patent/US9678377B2/en
Publication of WO2015070596A1 publication Critical patent/WO2015070596A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • 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
    • 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
    • G02F1/136286—Wiring, e.g. gate line, drain line
    • 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
    • G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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 OR CALCULATING; 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
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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 OR CALCULATING; 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
    • G06F3/047—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using sets of wires, e.g. crossed wires
    • 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
    • G02F1/133394—Piezoelectric elements associated with the cells
    • 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
    • G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
    • G02F1/13685—Top gates

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a built-in touch structure, a liquid crystal panel, and a display device.
  • the touch display screen is one of the important carriers for integrating the input and output terminals.
  • the touch screen displays the coordinate position of the touch point on the display screen to determine the intention of the toucher and perform related operations.
  • An object of the present invention is to provide a touch control structure, a liquid crystal panel, and a display device which are simple in structure, are not disturbed by the outside, and are accurately positioned.
  • the touch structure of the present invention includes:
  • the plurality of first signal lines and the plurality of second signal lines are arranged to form a plurality of intersections, and the plurality of first signal lines are insulated from the plurality of second signal lines ;
  • the plurality of touch units are in one-to-one correspondence with the plurality of intersections, and when the touch unit is touched, forming a first signal of an intersection corresponding to the touch unit
  • the line and the second signal line respectively generate an electrical signal
  • a controller respectively connected to the plurality of first signal lines and the plurality of second signal lines, respectively calculating a contact according to an electrical signal of the first signal line and an electrical signal i of the second signal line position.
  • the touch unit includes a piezoelectric material contact, the first signal line is connected to the power source through the piezoelectric material contact, and the second signal line passes through the piezoelectric material.
  • the contact piece is connected to the power source, when the piezoelectric material contact is touched, the first signal line is electrically connected to the power source, and the second signal line is electrically connected to the power source, so that the first A signal line and the second signal line respectively generate an electrical signal.
  • the first signal line passes through the piezoelectric contact and the liquid crystal surface a gate line of the board is connected, the second signal line is connected to the » line of the liquid crystal panel through the piezoelectric material contact piece, and the first signal line and the liquid crystal are used when the piezoelectric material contact piece is touched
  • the panel gate line is turned on, and the second signal line is electrically connected to the liquid crystal panel gate line, so that the first signal line and the second signal line respectively generate an electrical signal.
  • the touch unit further includes a first thin film transistor and a second thin film transistor, wherein the piezoelectric material contact is respectively connected to the first gate of the first thin film transistor and the second thin film transistor a second terminal is connected, a source of the first thin film transistor is connected to a gate line of the liquid crystal panel, a source of the second thin film transistor is connected to a gate line of the liquid crystal panel, and a drain of the first thin film transistor Connecting the second signal line, a drain of the second thin film transistor is connected to the first signal line.
  • the first signal line is connected to the data line of the liquid crystal panel through the piezoelectric material contact piece, and the second signal line passes through the data line of the piezoelectric material contact piece and the liquid crystal panel.
  • the first signal line is electrically connected to the data line of the liquid crystal panel
  • the second signal line is electrically connected to the data line of the liquid crystal panel.
  • the first signal line and the second signal line respectively generate an electrical signal.
  • the touch unit further includes a first thin film transistor and a second thin film transistor, wherein the piezoelectric material contact is respectively connected to the first gate of the first thin film transistor and the second thin film transistor a second gate connection, a source of the first thin film transistor is connected to the data line, a source of the second thin film transistor is connected to the data line, and a drain of the first thin film transistor is connected to the second signal a line, a drain of the second thin film transistor is connected to the first signal line.
  • the liquid crystal panel of the present invention includes the touch structure of the present invention.
  • the liquid crystal panel of the present invention further includes a first substrate, a second substrate disposed opposite the first substrate, and a liquid crystal layer disposed between the first substrate and the second substrate.
  • a plurality of pixels are disposed on the first substrate, a third thin film transistor is disposed in the pixel, and a gate of the third thin film transistor is connected to a » line of the liquid crystal panel, and a source of the third thin film transistor Connecting the data lines of the liquid crystal panel.
  • the third thin film transistor has a top gate structure.
  • the display device of the present invention includes the liquid crystal panel of the present invention.
  • the controller in the touch structure of the present invention is respectively based on the electrical signal of the first signal line and the The electrical signal of the second signal line calculates the position of the contact, thereby determining the intention of the touch person and performing related operations.
  • the touch structure of the present invention has a simple structure, is undisturbed, and has an accurate touch structure and a liquid crystal panel. And a display device.
  • the liquid crystal panel and the display device of the invention can integrate the display screen and the touch screen, and the structure is simple and the positioning is accurate without interference.
  • 1 is a schematic structural view of a first embodiment of a touch structure of the present invention
  • Embodiment 1 is a schematic structural view of a second embodiment of a touch structure of the present invention.
  • the touch structure of this embodiment includes:
  • the first signal line 41 and the second signal line 31 are both plural, and the first signal line 41 and the second signal line 31 are arranged in a cross to form a plurality of intersections, which are not shown in the drawing.
  • the plurality of intersections correspond to the plurality of touch units, and when the touch unit is touched, the first signal line 4i and the second signal line 31 forming the intersection corresponding to the touch unit respectively generate electrical signals;
  • the first signal line 41 and the second signal line 31 are respectively connected to each other, and the contact position is calculated based on the electrical signal of the first signal line 4i and the electrical signal of the second signal line 31, respectively.
  • first signal lines 41 and the second signal line 31 are plural, in a plane formed by the first signal line 41 and the second signal line 31, a plurality of first signal lines 41 may be used to characterize one direction in the plane. Coordinates, a plurality of second signal lines 31 characterizing coordinates in another direction in the plane, when the controller receives an electrical signal of a certain first signal line and a second signal line crossing the first signal line a signal, then the coordinates of the intersection in the above two directions in the plane are obtained, and the touch unit is in one-to-one correspondence with the plurality of intersections, so that the controller can calculate the intersection The position coordinates of the touch unit corresponding to the point in the above plane.
  • the controller in the touch structure of the present invention calculates the contact position according to the electrical signal of the first signal line and the electrical signal of the second signal line, respectively, thereby determining the intention of the toucher and performing related operations.
  • the touch structure of the invention has the advantages of simple structure, undisturbed and accurate positioning.
  • the touch unit includes a piezoelectric material contact 50, the first signal line 41 is connected to the power source through the piezoelectric material contact 50, and the second signal line 31 is passed through the piezoelectric material contact 50.
  • the piezoelectric material contact 50 is touched, the first signal line 41 is electrically connected to the power source, and the second signal line 31 is electrically connected to the power source, so that the first signal line 41 and the second signal line 31 are respectively Generate an electrical signal.
  • the touch unit includes a piezoelectric material contact 50, and the first signal line 41 is connected to the gate line 30 of the liquid crystal panel through the piezoelectric material contact 50, and the second signal line is connected. 31 is connected to the gate line 30 of the liquid crystal panel through the piezoelectric material contact 50.
  • the piezoelectric material contact 50 is touched, the first signal line 41 and the gate line 30 are turned on, and the second signal line 31 and the gate line 30 are guided.
  • the first signal line 41 and the second signal line 31 respectively generate an electric signal, that is, the gate line 30 of the liquid crystal panel serves as a power source for supplying electric power to the first signal line 41 and the second signal line 31.
  • the touch unit further includes a first thin film transistor 21 and a second thin film transistor 22, and the piezoelectric material contact 50 and the first gate and the second thin film transistor of the first thin film transistor 21, respectively.
  • the second gate of 22 is connected, the source of the first thin film transistor 21 is connected to the gate line 30, the source of the second thin film transistor 22 is connected to the gate line 30, and the drain of the first thin film transistor 21 is connected to the ::::: signal.
  • the line 31, the drain of the second thin film transistor 22 is connected to the first signal line 4i.
  • the first signal line 41 is directed to the X direction
  • the second signal line 31 is perpendicular to the first signal line 41 and is directed to the Y direction.
  • the gate line 30 of the liquid crystal panel is used to supply electric energy to the first signal line 41 and the second signal line 31.
  • the piezoelectric material contact 50 When the piezoelectric material contact 50 is touched, the piezoelectric material contact 50 generates a voltage, and the first thin film transistor 21 and the second thin film transistor 22 connected to the piezoelectric material contact 50 are respectively opened, and the grid of the liquid crystal panel is opened.
  • the line 30 supplies power to the first signal line 41 and the second signal line 31, and the first signal line 41 and the second signal line 31 respectively generate electrical signals, and the controller respectively generates an electrical signal according to the first signal line 41 and the second signal line.
  • the electric signal of 31 calculates the position of the contact, which is the position of the intersection of the first signal line 41 and the second signal line 31 described above.
  • the touch structure of the present embodiment is different from the touch structure of the first embodiment in that the connection manner of the first thin film transistor 21 and the second thin film transistor 22 is different, that is, the second signal line 31,
  • the power source of the first signal line 41 is not the gate line 30 but the data line 40 of the liquid crystal panel.
  • the touch unit includes a piezoelectric material contact 50, and the first signal line 41 is connected to the data line 40 of the liquid crystal panel through the piezoelectric material contact 50, and the second signal line 31 passes through the piezoelectric layer.
  • the material contact piece 50 is connected to the data line 40 of the liquid crystal panel.
  • the first signal line 41 is electrically connected to the data line 40 of the liquid crystal panel, and the second signal line 31 and the data line of the liquid crystal panel are connected.
  • 40 is turned on, so that the first signal line 41 and the second signal line 31 respectively generate an electric signal, that is, the data line 40 of the liquid crystal panel serves as a power source for supplying electric power to the first signal line 41 and the second signal line 31.
  • the touch control unit of the present embodiment further includes a first thin film transistor 21 and a second thin film transistor 22, and the piezoelectric material contact 50 and the first gate and the second thin film of the first thin film transistor 21, respectively.
  • the second gate of the transistor 22 is connected, the source of the first thin film transistor 21 is connected to the data line 40, the source of the second thin film transistor 22 is connected to the data line 40, and the drain of the first thin film transistor 21 is connected to the second signal line 31.
  • the drain of the second thin film transistor 22 is connected to the first signal line 41.
  • the second signal line 31 is parallel to the gate line 30.
  • the first signal line may be parallel to the » line, and the second signal may be The line can be parallel to the data line.
  • the working process of the touch structure of the present embodiment is substantially the same as that of the first embodiment, except that the data line 40 serves as a power source for supplying electric power to the first signal line 41 and the second signal line 31.
  • a separate signal line may be disposed, and the signal line is respectively connected to the source of the first thin film transistor and the source of the second thin film transistor 22, that is, the signal line serves as a The first signal line and the second signal line provide power for the electrical energy.
  • the piezoelectric material contact 50 may be a piezoelectric polymer (polyvinylidene fluoride) material, a piezoelectric crystal material or a piezoelectric composite material.
  • An embodiment of the liquid crystal panel of the present invention includes a first substrate, a second substrate disposed opposite the first substrate, and a liquid crystal layer disposed between the first substrate and the second substrate, the plurality of pixels being disposed on the first substrate, A third thin film transistor 23 is provided in each of the plurality of pixels.
  • the gate of the third thin film transistor 23 is connected to the electrode line 30 of the liquid crystal panel, and the source of the third thin film transistor 23 is connected to the data line 40 of the liquid crystal panel.
  • Embodiments of the liquid crystal panel of the present invention also include the touch structure of the present invention.
  • the third thin film transistor is a closet structure.
  • the display device of the present invention includes the liquid crystal panel of the present invention.
  • the display device may be any product or component having a display function such as a liquid crystal panel, an electronic paper, an OLED panel, a liquid crystal television, a liquid crystal display, a digital photo frame, a mobile phone, a tablet computer, or the like.
  • a display function such as a liquid crystal panel, an electronic paper, an OLED panel, a liquid crystal television, a liquid crystal display, a digital photo frame, a mobile phone, a tablet computer, or the like.

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  • Physics & Mathematics (AREA)
  • 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)
  • Chemical & Material Sciences (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Liquid Crystal (AREA)
  • Geometry (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

一种触控结构、液晶面板以及显示装置。该触控结构包括多个第一信号线（41）；多个第二信号线（31），所述多个第一信号线（41）与所述多个第二信号线（31）交叉排列形成多个交叉点，所述多个第一信号线（41）与所述多个第二信号线（31）绝缘；多个触控单元，所述多个触控单元与所述多个交叉点一一对应，所述触控单元被触控时，使形成与所述触控单元对应的交叉点的第一信号线（41）、第二信号线（31）分别产生电信号；控制器，与所述多个第一信号线（41）、所述多个第二信号线（31）分别连接，分别根据所述第一信号线（41）的电信号以及所述第二信号线（31）的电信号计算触点位置。该触控结构的结构简单，不受干扰且定位准确。

Description

触控结构、 液晶面板以及显示装置 本发明涉及显示技术领域， 特别是涉及一种内置的触控结构、 液晶面板 以及显示装置。 在显示装置中，触摸显示屏是将输入与输出终端一体化的重要载体之一。 触摸显示屏通过测量触摸点在显示屏上的坐标位置， 进而判断触摸者的意图 并进行相关操作。
从技术原理来区别触摸屏， 可分为五个基本种类： 矢量压力传感技术触 摸屏、 电阻技术触摸屏、 电容技术触摸屏、 红外线技术触摸屏、 表面声波技 术触摸屏。 本发明的目的在于提供一种结构简单、 不受外界千扰的且定位准确的触 控结构、 液晶面板以及显示装置。
本发明的触控结构， 包括：
多个第一信号线；
多个第二信号线， 所述多个第一信号线与所述多个第二信号线交叉排列 形成多个交叉点， 所述多个第一信号线与所述多个第二信号线绝缘；
多个触控单元， 所述多个触控单元与所述多个交叉点一一对应， 所述触 控单元被触控时， 使形成与所述触控单元对应的交叉点的第一信号线、 第二 信号线分别产生电信号；
控制器， 与所述多个第一信号线、 所述多个第二信号线分别连接， 分别 根据所述第一信号线的电信号以及所述第二信号线的电信号 i†算触点位置。
本发明的触控结构中， 所述触控单元包括压电材料触片， 所述第一信号 线通过所述压电材料触片与电源连接， 所述第二信号线通过所述压电材料触 片与所述电源连接， 所述压电材料触片被触控时， 所述第一信号线与所述电 源导通， 所述第二信号线与所述电源导通， 使所述第一信号线与所述第二信 号线分别产生电信号。
本发明的触控结构中， 所述第一信号线通过所述压电^料触片与液晶面 板的栅线连接， 所述第二信号线通过所述压电材料触片与液晶面板的 »线连 接，所述压电材料触片被触控时，所述第一信号线与所述液晶面板栅线导通， 所述第二信号线与所述液晶面板栅线导通， 使所述第一信号线与所述第二信 号线分别产生电信号。
本发明的触控结构中， 所述触控单元还包括第一薄膜晶体管、 第二薄膜 晶体管， 所述压电材料触片分别与第一薄膜晶体管的第一栅极以及第二薄膜 晶体管的第二 »极连接， 所述第一薄膜晶体管的源极连接所述液晶面板的栅 线， 所述第二薄膜晶体管的源极连接所述液晶面板的栅线， 所述第一薄膜晶 体管的漏极连接所述第二信号线， 所述第二薄膜晶体管的漏极连接所述第一 信号线。
本发明的触控结构中， 所述第一信号线通过所述压电 料触片与液晶面 板的数据线连接， 所述第二信号线通过所述压电材料触片与液晶面板的数据 线连接， 所述压电材料触片被触控时， 所述第一信号线与所述液晶面板的数 据线导通， 所述第二信号线与所述液晶面板的数据线导通—， 使所述第一信号 线与所述第二信号线分别产生电信号。
本发明的触控结构中， 所述触控单元还包括第一薄膜晶体管、 第二薄膜 晶体管， 所述压电材料触片分别与第一薄膜晶体管的第一栅极以及第二薄膜 晶体管的第二栅极连接， 所述第一薄膜晶体管的源极连接所述数据线， 所述 第二薄膜晶体管的源极连接所述数据线， 所述第一薄膜晶体管的漏极连接所 述第二信号线， 所述第二薄膜晶体管的漏极连接所述第一信号线。
本发明的液晶面板， 包括本发明的触控结构。
本发明的液晶面板还包括第一基板、 与所述第一基板相对设置的第二基 板、 设置于所述第一基板和所述第二基板之间的液晶层，
所述第一基板上设置有多个像素， 所述像素内设置有第三薄膜晶体管， 所述第三薄膜晶体管的栅极连接所述液晶面板的 »线， 所述第三薄膜晶体管 的源极连接所述液晶面板的数据线。
本发明的液晶面板中， 所述第三薄膜晶体管为顶栅结构。
本发明的显示装置， 包括本发明的液晶面板。
本发明的触控结构中的控制器分别根据所述第一信号线的电信号以及所 述第二信号线的电信号计算触点位置， 由此可以判断触摸者的意图并进行相 关操作，本发明的触控结构，结构简单、不受干扰的 ϋ定位准确的触控结构、 液晶面板以及显示装置。
本发明的液晶面板和显示装置可以使显示屏与触摸屏结合为一体， 同时 结构简单、 不受干扰的 定位准确。 图 1为本发明的触控结构的第一实施例的结构示意图；
图 2为本发明的触控结构的第二实施例的结构示意图。 实施例一
如图 1所示， 本实施例的触控结构， 包括：
第一信号线 41以及与第一信号线 41交叉排列的第二信号线 31， 第一信 号线 41与第二信号线 31绝缘， 第一信号线 41与第二信号线 31交叉排列形 成交叉点。 具体来说， 第一信号线 41与第二信号线 31均为多个， 第一信号 线 41与第二信号线 31交叉排列形成多个交叉点， 图中未示出。
多个交叉点一一对应多个触控单元， 上述触控单元被触控时， 使形成与 触控单元对应的交叉点的第一信号线 4i、 第二信号线 31分别产生电信号； 控制器， 与第一信号线 41、 第二信号线 31 分别连接， 分别根据第一信 号线 4i的电信号以及第二信号线 31的电信号计算触点位置。
第一信号线 41与第二信号线 31均为多个时，在第一信号线 41与第二信 号线 31形成的一个平面内， 可以用多条第一信号线 41表征平面内一个方向 的坐标， 多条第二信号线 31表征平面内另一个方向的坐标， 当控制器接收 到某一第一信号线的电信号以及与这一第一信号线交叉的某一第二信号线的 电信号， 则即可得到这一交叉点的在这一平面内的上述两个方向上的坐标， 而触控单元与上述多个交叉点一一对应， 由此控制器即可计算出这一交叉点 所对应的触控单元的在上述平面内的位置坐标。
本发明的触控结构中的控制器分别根据所述第一信号线的电信号以及所 述第二信号线的电信号计算触点位置， 由此可以判断触摸者的意图并进行相 关操作， 本发明的触控结构， 结构简单、 不受干扰且定位准确。 本实施例的触控结构中， 上述触控单元包括压电 料触片 50， 第一信号 线 41通过压电材料触片 50与电源连接， 第二信号线 31通过压电材料触片 50与电源连接，压电材料触片 50被触控时，第一信号线 41与上述电源导通， 第二信号线 31与上述电源导通， 以使第一信号线 41与第二信号线 31分别产 生电信号。
具体来说，本实施例的触控结构中，上述触控单元包括压电材料触片 50， 第一信号线 41通过压电材料触片 50与液晶面板的栅线 30连接，第二信号线 31通过压电材料触片 50与液晶面板的栅线 30连接， 压电材料触片 50被触 控时， 第一信号线 41与栅线 30导通， 第二信号线 31与栅线 30导通， 以使 第一信号线 41与第二信号线 31分别产生电信号，即液晶面板的栅线 30作为 向第一信号线 41、 第二信号线 31提供电能的电源。
本实施例的触控结构中， 上述触控单元还包括第一薄膜晶体管 21、 第二 薄膜晶体管 22， 压电材料触片 50分别与第一薄膜晶体管 21的第一栅极以及 第二薄膜晶体管 22的第二栅极连接，第一薄膜晶体管 21的源极连接栅线 30， 第二薄膜晶体管 22的源极连接栅线 30， 第一薄膜晶体管 21的漏极连接第::：:: 信号线 31， 第二薄膜晶体管 22的漏极连接第一信号线 4i。
本实施例的触控结构中， 第一信号线 41 指向 X向， 第二信号线 31与第 一信号线 41垂直， 指向 Y向。
当本实施例的触控结构安装于液晶面板中并开始工作时， 液晶面板的栅 线 30用于向第一信号线 41、 第二信号线 31提供电能。 当触动某一压电村料 触片 50时， 压电材料触片 50产生电压， 分别开通此压电材料触片 50连接的 第一薄膜晶体管 21、 第二薄膜晶体管 22， 则液晶面板的栅线 30向第一信号 线 41、 第二信号线 31提供电能， 第一信号线 41与第二信号线 31分别产生 电信号， 控制器分别根据第一信号线 41的电信号以及第二信号线 31的电信 号计算触点位置， 此位置即上述第一信号线 41 以及第二信号线 31的交叉点 的位置。
实施例二
如图 2所示， 本实施例的触控结构与实施例一的触控结构的区别在于第 一薄膜晶体管 21与第二薄膜晶体管 22的连线方式不同， 即第二信号线 31、 第一信号线 41的电源不是栅线 30而是液晶面板的数据线 40。
本实施例的触控结构中， 上述触控单元包括压电材料触片 50， 第一信号 线 41通过压电材料触片 50与液晶面板的数据线 40连接， 第二信号线 31通 过压电 料触片 50与液晶面板的数据线 40连接，压电材料触片 50被触控时， 第一信号线 41与液晶面板的数据线 40导通，第二信号线 31与液晶面板的数 据线 40导通， 以使第一信号线 41与第二信号线 31分别产生电信号， 即液晶 面板的数据线 40作为向第一信号线 41、 第二信号线 31提供电能的电源。
本实施例的触控结构， 其中， 上述触控单元还包括第一薄膜晶体管 21、 第二薄膜晶体管 22， 压电材料触片 50分别与第一薄膜晶体管 21的第一栅极 以及第二薄膜晶体管 22的第二櫥极连接， 第一薄膜晶体管 21的源极连接数 据线 40， 第二薄膜晶体管 22的源极连接数据线 40， 第一薄膜晶体管 21的漏 极连接第二信号线 31 , 第二薄膜晶体管 22的漏极连接第一信号线 41。
以上实施例的触控结构中， 第二信号线 31与栅线 30平行， 第一信号线 在本发明的触控结构的其他实施例中， 第一信号线可以与 »线平行， 第 二信号线可以与数据线平行。
当本实施例的触控结构的工作过程与实施例一大致一样， 不同之处仅在 于， 数据线 40作为向第一信号线 41、 第二信号线 31提供电能的电源。
在本发明的触控结构的其他实施例中， 还可以设置一条单独的信号线， 此信号线分别连接第一薄膜晶体管的源极、第二薄膜晶体管 22的源极， 即此 信号线作为向第一信号线、 第二信号线提供电能的电源。
本实施例的触控结构， 其中优选地， 压电材料触片 50可选用压电聚合物 (聚偏二氟乙烯） 材料、 压电晶体材料或压电复合材料。
本发明的液晶面板的实施例， 包括第一基板、 与第一基板相对设置的第 二基板、 设置于第一基板和第二基板之间的液晶层， 第一基板上设置有多个 像素， 多个上述像素内分别设置有第三薄膜晶体管 23。 第三薄膜晶体管 23 的栅极连接液晶面板的極线 30， 第三薄膜晶体管 23 的源极连接液晶面板的 数据线 40。 本发明的液晶面板的实施例还包括本发明的触控结构。
本发明的液晶面板的实施例， 其中， 第三薄膜晶体管为顶櫥结构。 本发明的显示装置， 包括本发明的液晶面板。
上述显示装置可以为液晶面板、 电子纸、 OLED 面板、 液晶电视、 液晶 显示器、 数码相框、 手机、 平板电脑等任何具有显示功能的产品或部件。
以上所述仅是本发明的优选实施方式， 应当指出， 对于本技术领域的普 通技术人员来说， 在不脱离本发明原理的前提下， 还可以做出若干改进和润 饰， 这些改进和润饰也应视为本发明的保护范围。

Claims

控结构， 包括:
"""jp - 线；
多个第二信号线， 所述多个第一信号线与所述多个第二信号线交叉排列 形成多个交叉点， 所述多个第一信号线与所述多个第二信号线绝缘；
多个触控单元， 所述多个触控单元与所述多个交叉点 一对应， 所述触 控单元被触控时， 使形成与所述触控单元对应的交叉点的第一信号线、 第二 信号线分别产生电信号；
控制器， 与所述多个第一信号线、 所述多个第二信号线分别连接， 分别 根据所述第一信号线的电信号以及所述第二信号线的电信号什算触点位置。
2.根据权利要求 1所述的触控结构， 其中， 所述触控单元包括压电材料 触片， 所述第一信号线通过所述压电材料触片与电源连接， 所述第二信号线 通过所述压电材料触片与所述电源连接， 所述压电材料触片被触控时， 所述 第一信号线与所述电源导通， 所述第二信号线与所述电源导通， 使所述第一 信号线与所述第二信号线分别产生电信号。
3.根据权利要求 2所述的触控结构， 其中， 所述第一信号线通过所述压 电材料触片与液晶面板的栅线连接， 所述第二信号线通过所述压电材料触片 与液晶面板的 »线连接， 所述压电材料触片被触控时， 所述第一信号线与所 述液晶面板的栅线导通， 所述第二信号线与所述液晶面板的栅线导通， 使所 述第一信号线与所述第二信号线分别产生电信号。
4.根据权利要求 3所述的触控结构， 其中， 所述触控单元还包括第一薄 膜晶体管、 第二薄膜晶体管， 所述压电材料触片分别与第一薄膜晶体管的第 一栅极以及第二薄膜晶体管的第二栅极连接， 所述第一薄膜晶体管的源极连 接所述液晶面板的栅线， 所述第二薄膜晶体管的源极连接所述液晶面板的栅 线， 所述第一薄膜晶体管的漏极连接所述第二信号线， 所述第二薄膜晶体管 的漏极连接所述第一信号线。
5.根据权利要求 2所述的触控结构， 其中， 所述第一信号线通过所述压 电材料触片与液晶面板的数据线连接， 所述第二信号线通过所述压电材料触 片与液晶面板的数据线连接， 所述压电材料触片被触控时， 所述第一信号线 与所述液晶面板的数据线导通， 所述第二信号线与所述液晶面板的数据线导 通， 使所述第一信号线与所述第二信号线分别产生电信号。
6.根据权利要求 5所述的触控结构， 其中， 所述触控单元还包括第一薄 膜晶体管、 第二薄膜晶体管， 所述压电材料触片分别与第一薄膜晶体管的第 一栅极以及第二薄膜晶体管的第二櫥极连接， 所述第一薄膜晶体管的源极连 接所述液晶面板的数据线， 所述第二薄膜晶体管的源极连接所述液晶面板的 数据线， 所述第一薄膜晶体管的漏极连接所述第二信号线， 所述第二薄膜晶 体管的漏极连接所述第一信号线。
7.一种液晶面板， 包括如权利要求 1 6任一项所述的触控结构。
8.根据权利要求 7所述的液晶面板， 其中， 所述液晶面板还包括第一基 板、 与所述第一基板相对设置的第二基板、 设置于所述第一基板和所述第二 基板之间的液晶层，
所述第一基板上设置有多个像素， 所述像素内设置有第三薄膜晶体管， 所述第三薄膜晶体管的栅极连接所述液晶面板的 »线， 所述第三薄膜晶体管 的源极连接所述液晶面板的数据线。
9.根据权利要求 8所述的液晶面板， 其中， 所述第三薄膜晶体管为顶栅 结构。
10. 一种显示装置， 包括如权利要求 7- 9中任一所述的液晶面板。
PCT/CN2014/079367 2013-11-15 2014-06-06 触控结构、液晶面板以及显示装置 Ceased WO2015070596A1 (zh)

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