WO2015010507A1 - Structure d'électrode tactile et panneau tactile sur lequel elle est appliquée - Google Patents

Structure d'électrode tactile et panneau tactile sur lequel elle est appliquée Download PDF

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Publication number
WO2015010507A1
WO2015010507A1 PCT/CN2014/080032 CN2014080032W WO2015010507A1 WO 2015010507 A1 WO2015010507 A1 WO 2015010507A1 CN 2014080032 W CN2014080032 W CN 2014080032W WO 2015010507 A1 WO2015010507 A1 WO 2015010507A1
Authority
WO
WIPO (PCT)
Prior art keywords
axial sensing
substrate
sensing electrodes
touch panel
touch
Prior art date
Application number
PCT/CN2014/080032
Other languages
English (en)
Chinese (zh)
Inventor
张普欣
李瑞兴
陈福城
黄志奎
聂世波
Original Assignee
宝宸（厦门）光学科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 宝宸（厦门）光学科技有限公司 filed Critical 宝宸（厦门）光学科技有限公司
Publication of WO2015010507A1 publication Critical patent/WO2015010507A1/fr

Links

Classifications

    • 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
    • G06F3/0445—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
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • 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
    • G06F3/0448—Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality

Definitions

  • touch panels have gradually become the most important input interface, and are widely used in various electronic products, such as mobile phones, personal digital assistants (PDAs) or palm-sized personal computers.
  • PDAs personal digital assistants
  • palm-sized personal computers are widely used in various electronic products, such as mobile phones, personal digital assistants (PDAs) or palm-sized personal computers.
  • FIG. 1 is a schematic plan view of a conventional touch panel 10 .
  • the conventional touch panel 10 is generally provided with a rectangular touch area A, and the touch electrode structure 11 is disposed in the touch area A.
  • the touch electrode structure has a plurality of first axial sensing electrodes 12 arranged along the longitudinal direction of the touch area A (for example, the Y-axis direction) and a plurality of horizontal directions along the touch area A (for example, the X-axis direction).
  • the second axial sensing electrodes 14 are arranged.
  • the touch panel structure of the touch panel is designed such that the terminals of the sensing electrodes are located only on one of the opposite sides of the touch area, so that the touch panel is
  • the frame design is more flexible than the terminal layout of the sensing electrodes and the corresponding wire routing.
  • the first axial sensing electrode and the second axial sensing electrode are alternately disposed at an oblique angle through the layout design of the sensing electrodes of the touch electrode structure, and the two axial sensing are performed.
  • the terminals of the electrodes are concentrated on one of the opposite sides of the touch area, so that the wires can be disposed only in an area adjacent to one of the opposite sides of the touch area, and the design of the touch panel in the frame is increased.
  • Elasticity for example, the touch panel can be designed with no border or narrow border on the opposite side of the touch panel, thereby maximizing the visible area of the touch panel.
  • 1 is a schematic plan view of a conventional touch panel
  • 2B is a schematic plan view of the other side of the touch panel according to an embodiment of the invention.
  • FIG. 5-8 are cross-sectional views of various embodiments of the touch panel along section line 4-4' of Fig. 3.
  • the touch panel of the embodiment of the present invention is defined as a rectangular touch area, and includes a touch electrode structure and a wire group.
  • the layout area of the touch electrode structure determines the touch area of the touch panel.
  • the wire group is a peripheral area disposed outside the touch area and adjacent to the touch area, and is electrically connected. Contact control electrode structure.
  • FIG. 2A is a schematic plan view of one side of the touch panel 100 according to an embodiment of the invention.
  • 2A is only a plane view of one side of the touch panel 100, and thus only a plurality of first axial sensing electrodes 110 in the touch electrode structure of the touch panel 100 are illustrated.
  • An axial sensing electrode 110 is arranged in parallel along an oblique line of the touch area A.
  • the oblique line described in this embodiment is represented by, for example, a diagonal line of the touch area A.
  • the diagonal direction of the touch area A of the embodiment is the first axial direction. D1.
  • the oblique line is not limited to the diagonal direction. Any angle that can form a non-perpendicular relationship with either side of the touch area A is a range of oblique lines defined by the present invention.
  • the first axial sensing electrodes 110 of the present embodiment are disposed at an oblique angle to either side of the touch area A, so that the terminals 110a of each of the first axial sensing electrodes 110 can be It is only arranged on one of the opposite sides of the touch area A.
  • the terminal ends 110a of all the first axial sensing electrodes 110 of the present embodiment are respectively disposed on the upper side and the opposite side of the touch area A, respectively, in a plan view and a set orientation. Side.
  • the pair of opposite sides (the upper side and the lower side) of the touch area A are further adjacent to the first peripheral area P1 and the second peripheral area P2, respectively.
  • the terminal 110a disposed on the upper side of the touch area A is adjacent to the first peripheral area P1
  • the terminal disposed on the lower side of the touch area A is disposed.
  • 110a is adjacent to the second peripheral zone P2.
  • FIG. 2B is a schematic plan view of the other side of the touch panel 100 according to an embodiment of the invention.
  • 2B is only used to show the planar view of the other side of the touch panel 100. Therefore, only a plurality of second axial sensing electrodes 120 in the touch electrode structure of the touch panel 100 are illustrated.
  • the second axial sensing electrodes 120 are arranged in parallel along another oblique line of the touch area A, and are alternately electrically insulated from the first axial sensing electrodes 110 in FIG. 2A.
  • another oblique line according to the embodiment is represented by another diagonal line of the touch area A, in other words, another diagonal of the touch area A according to the embodiment.
  • the line direction is the second axial direction D2.
  • FIG. 2B also shows only a plurality of third wires 122 and a plurality of fourth wires 126 in the wire group of the touch panel 100.
  • the third wire 122 is disposed in the first peripheral region P1 for electrically connecting the terminal 120a disposed in the second axial sensing electrode 120 adjacent to the first peripheral region P1;
  • the fourth wire 126 is disposed in the second peripheral region P2 is used to electrically connect the terminal 120a of the second axial sensing electrode 120 disposed adjacent to the second peripheral region P2.
  • FIG. 3 is a schematic diagram of an embodiment of the touch panel 100 combined with FIG. 2A and FIG. 2B .
  • the touch electrode structure of the touch panel 100 includes a first axial sensing electrode 110 and a second axial sensing electrode 120 that are interlaced with each other, and the wire group of the touch panel 100 includes an electrical connection.
  • the first wire 112 and the second wire 116 of the axial sensing electrode 110 and the third wire 122 and the fourth wire 126 of the second axial sensing electrode 120 are electrically connected.
  • first bonding pads 114 and the third bonding pads 124 located in the first peripheral region P1 may be bonded to the first flexible printed circuit board (not shown), and the second bonding pads 118 located in the second peripheral region P2 and The fourth bond pad 128 is then bonded to a second flexible printed circuit board (not shown).
  • first flexible printed circuit board and the second flexible printed circuit board are electrically connected to an external signal processor (not shown)
  • the 120 is capable of signal transmission to the signal processor through the wire set, the first flexible printed circuit board, and the second flexible printed circuit board.
  • first axial sensing electrode 110 and the second axial sensing electrode 120 illustrated in the embodiment of FIG. 3 are strip electrodes respectively, but the shape of the actual sensing electrode is not designed. This is limited to this.
  • FIG. 4 a schematic diagram of a single sensing electrode according to an embodiment of the invention is shown.
  • the embodiment of FIG. 4 is exemplified by a first axial sensing electrode 110 arranged along the first axial direction D1 in FIG. 3.
  • the first axial sensing electrode 110 includes a plurality of first electrode units 110U and a plurality of The first connection line 110C of the adjacent two first electrode units 110U is electrically connected.
  • the shape design of the first electrode unit 110U is determined according to the specification requirements of different integrated circuits.
  • the shape of the electrode unit 110U of the embodiment of FIG. 4 is designed in a diamond shape. In addition, in other embodiments, the electrode unit 110U The shape can also be square, snowflake or other shapes.
  • the second axial sensing electrodes 120 arranged along the second axial direction D2 in FIG. 3 the same design may be adopted for the first axial sensing electrodes 110, and each of the second axial sensing electrodes 120 may include a plurality of The second electrode unit and the plurality of second connecting lines electrically connected to the adjacent two second electrode units are not further described herein and illustrated in the drawings.
  • the touch panel 100 of the present embodiment includes substrates 101 , 111 , and 121 .
  • the substrate 101 is, for example, a protective cover of the touch panel 100.
  • the lenses 111 and 121 are carrier substrates for the first axial sensing electrodes 110 and the second axial sensing electrodes 120, respectively. Therefore, the substrate 111 is disposed under the substrate 101, and the substrate 121 is disposed under the substrate 111.
  • the first axial sensing electrode 110 and the second axial sensing electrode 120 are disposed under the substrate 101.
  • the upper surface of the substrate 101 is used as a touch surface for the user to operate the touch panel 100.
  • the architecture of the present embodiment is substantially the same as that of the embodiment of FIG. 5, except that the first axial sensing electrode 110 of the present embodiment is formed on the lower surface of the substrate 111.
  • the adhesive layer 103 is actually bonded to the lower surface of the substrate 101 and the upper surface of the substrate 111, and the adhesive layer 105 is attached to the first axial sensing formed on the lower surface of the substrate 111.
  • the electrode 110 and the second axial sensing electrode 120 formed on the upper surface of the substrate 121.
  • the bonding layer 105 of the present embodiment can serve as an insulating layer for electrically isolating the first axial sensing electrode 110 from the second axial sensing electrode 120, and the substrate 121 can be used as the second layer.
  • the protective layer of the axial sensing electrode 120 can serve as an insulating layer for electrically isolating the first axial sensing electrode 110 from the second axial sensing electrode 120, and the substrate 121 can be used as the second layer.
  • the protective layer of the axial sensing electrode 120 can serve as an insulating layer for electrically isolating the first axial sensing electrode 110 from the second axial sensing electrode 120, and the substrate 121 can be used as the second layer.
  • the protective layer of the axial sensing electrode 120 can serve as an insulating layer for electrically isolating the first axial sensing electrode 110 from the second axial sensing electrode 120, and the substrate 121 can be used as the second layer.
  • the protective layer of the axial sensing electrode 120 can serve as an insulating layer
  • the touch panel 100 of the present embodiment further includes an adhesive layer 103 disposed between the substrate 101 and the substrate 121. Further, the adhesive layer 103 of the present embodiment is bonded to the first surface formed on the lower surface of the substrate 101.
  • the axial sensing electrode 110 and the second axial sensing electrode 120 formed on the upper surface of the substrate 121.
  • the bonding layer 103 of the present embodiment can serve as an insulating layer for electrically isolating the first axial sensing electrode 110 from the second axial sensing electrode 120, and the substrate 121 can be used as the second layer.
  • the protective layer of the axial sensing electrode 120 is disposed between the substrate 101 and the substrate 121. Further, the adhesive layer 103 of the present embodiment is bonded to the first surface formed on the lower surface of the substrate 101.
  • the axial sensing electrode 110 and the second axial sensing electrode 120 formed on the upper surface of the substrate 121.
  • the bonding layer 103 of the present embodiment can serve as an insulating layer for electrically isolating the first
  • the touch panel 100 of the present embodiment further includes an adhesive layer 103 and a protective layer 107.
  • the adhesive layer 103 is disposed between the substrate 101 and the substrate 111. Further, the adhesive layer 103 of the present embodiment is bonded to the lower surface of the substrate 101 and the first axial sense formed on the upper surface of the substrate 111.
  • the electrode 110 is measured. Furthermore, since the second axial sensing electrode 120 of the present embodiment is formed on the lower surface of the substrate 111, the protective layer 107 is further formed under the second axial sensing electrode 120 to avoid the second axial direction. The sensing electrode 120 is directly exposed and damaged.
  • the material of the first axial sensing electrode 110 and the second axial sensing electrode 120 may be a transparent conductive material, such as indium tin. Oxide; ITO), the pattern of the first axial sensing electrode 110 and the second axial sensing electrode 120 may be formed by a deposition, lithography, and etching process.
  • the material of the first wire 112, the second wire 116, the third wire 122, the fourth wire 126, the first bonding pad 114, the second bonding pad 118, the third bonding pad 124, and the fourth bonding pad 128 may be metal.
  • alloy materials such as silver, copper, molybdenum, aluminum, or combinations thereof, may be formed by a printing process or by deposition, lithography, and etching processes.
  • the material of the substrate 101 may be a reinforced glass substrate or a plastic substrate, and the materials of the substrates 111 and 121 may be a glass substrate or a plastic film.
  • the adhesive layers 103 and 105 may be, for example, a transparent optical adhesive or a liquid adhesive.
  • the material of the protective layer 107 may be an organic insulating material, such as polyimide, and the protective layer 107 may be formed by a coating or printing process; the material of the protective layer 107 may also be an inorganic insulating material such as silicon dioxide. Or silicon nitride, the protective layer 107 can be formed by a deposition process.
  • the first axial sensing electrode and the second axial sensing electrode are alternately disposed at an oblique angle through the layout design of the sensing electrodes of the touch electrode structure, and the two axial sensing are performed.
  • the terminals of the electrodes are concentrated on one of the opposite sides of the touch area, so that the wires respectively connected to the two axial sensing electrodes need to be disposed adjacent to one of the opposite sides of the touch area.
  • the area increases the flexibility of the touch panel in the design of the border.
  • the touch panel can be designed with no border or narrow border on the opposite side of the touch panel, thereby maximizing the visible area of the touch panel.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Position Input By Displaying (AREA)

Abstract

La présente invention concerne une structure d'électrode tactile appliquée sur un panneau tactile conçu pour être pourvu d'une zone tactile rectangulaire. La structure d'électrode tactile comprend : une pluralité de premières électrodes de détection axiales disposées en parallèle le long d'une ligne diagonale de la zone tactile, et une pluralité de secondes électrodes de détection axiales disposées en parallèle le long de l'autre ligne diagonale de la zone tactile et coupant les premières électrodes de détection axiales à la manière d'une isolation électrique, une borne de câblage de la première électrode de détection axiale et une borne de câblage de la seconde électrode de détection axiale étant juste placées sur une paire de côtés opposés de la zone tactile. L'invention concerne également le panneau tactile. La conception des cadres latéraux du panneau tactile est ainsi plus adaptable puisqu'il n'y a pas de délimitation à partir de l'implantation des bornes de câblage des électrodes de détection et à partir des câbles conducteurs correspondants.
PCT/CN2014/080032 2013-07-20 2014-06-17 Structure d'électrode tactile et panneau tactile sur lequel elle est appliquée WO2015010507A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310316852.7A CN104298386A (zh) 2013-07-20 2013-07-20 触控电极结构及其应用之触控面板
CN201310316852.7 2013-07-20

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WO2015010507A1 true WO2015010507A1 (fr) 2015-01-29

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CN (1) CN104298386A (fr)
TW (2) TWM486093U (fr)
WO (1) WO2015010507A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110489017A (zh) * 2019-09-27 2019-11-22 业成科技（成都）有限公司 触控屏、触控显示屏及智能终端
CN111782075A (zh) * 2019-04-03 2020-10-16 联阳半导体股份有限公司 触控装置
CN114253412A (zh) * 2020-09-23 2022-03-29 宸美（厦门）光电有限公司 触控感测层及触控面板

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106293168B (zh) * 2015-05-14 2024-03-15 安徽精卓光显技术有限责任公司 触控装置及基于触控装置的电极引线设置方法
KR102402395B1 (ko) 2015-10-27 2022-05-27 엘지디스플레이 주식회사 터치스크린 내장형 디스플레이 패널 및 터치 디스플레이 디바이스
CN107491222A (zh) * 2017-09-01 2017-12-19 业成科技（成都）有限公司 触控面板
CN108241457B (zh) * 2018-02-08 2022-04-08 业成科技（成都）有限公司 触控感测模组以及应用其的触控显示面板及智能手表
CN108932077B (zh) * 2018-06-15 2020-02-14 武汉华星光电半导体显示技术有限公司 触控面板及显示设备

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US20110291966A1 (en) * 2010-05-28 2011-12-01 Panasonic Corporation Touch screen device
CN102945108A (zh) * 2012-11-29 2013-02-27 苏州瀚瑞微电子有限公司 一种触摸屏的电极布局
CN102999217A (zh) * 2012-11-29 2013-03-27 广东欧珀移动通信有限公司 无边框触摸屏及触摸屏终端设备
CN202995669U (zh) * 2012-11-29 2013-06-12 广东欧珀移动通信有限公司 无边框触摸屏及触摸屏终端设备
CN203414926U (zh) * 2013-07-20 2014-01-29 宝宸（厦门）光学科技有限公司 触控电极结构及其应用之触控面板

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CN101271211A (zh) * 2007-03-19 2008-09-24 精工爱普生株式会社 液晶装置、电子设备和位置检测方法
US20110291966A1 (en) * 2010-05-28 2011-12-01 Panasonic Corporation Touch screen device
CN102945108A (zh) * 2012-11-29 2013-02-27 苏州瀚瑞微电子有限公司 一种触摸屏的电极布局
CN102999217A (zh) * 2012-11-29 2013-03-27 广东欧珀移动通信有限公司 无边框触摸屏及触摸屏终端设备
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CN203414926U (zh) * 2013-07-20 2014-01-29 宝宸（厦门）光学科技有限公司 触控电极结构及其应用之触控面板

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111782075A (zh) * 2019-04-03 2020-10-16 联阳半导体股份有限公司 触控装置
CN110489017A (zh) * 2019-09-27 2019-11-22 业成科技（成都）有限公司 触控屏、触控显示屏及智能终端
CN114253412A (zh) * 2020-09-23 2022-03-29 宸美（厦门）光电有限公司 触控感测层及触控面板

Also Published As

Publication number Publication date
TWM486093U (zh) 2014-09-11
TW201504892A (zh) 2015-02-01
CN104298386A (zh) 2015-01-21
TWI515627B (zh) 2016-01-01

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