WO2012153899A1 - Panneau de capteurs tactiles - Google Patents

Panneau de capteurs tactiles Download PDF

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Publication number
WO2012153899A1
WO2012153899A1 PCT/KR2011/009010 KR2011009010W WO2012153899A1 WO 2012153899 A1 WO2012153899 A1 WO 2012153899A1 KR 2011009010 W KR2011009010 W KR 2011009010W WO 2012153899 A1 WO2012153899 A1 WO 2012153899A1
Authority
WO
WIPO (PCT)
Prior art keywords
traces
substrate
transparent window
touch
present
Prior art date
Application number
PCT/KR2011/009010
Other languages
English (en)
Korean (ko)
Inventor
김재흥
Original Assignee
(주)멜파스
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 (주)멜파스 filed Critical (주)멜파스
Publication of WO2012153899A1 publication Critical patent/WO2012153899A1/fr

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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
    • G06F3/044—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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04111—Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate

Definitions

  • Embodiments of the present invention relate to a touch sensing panel, and more particularly, to a touch sensing panel capable of increasing a channel of a sensing area for sensing a touch.
  • the touch screen a typical touch sensing device, can be classified into resistive film, capacitive, ultrasonic, and infrared based on its operation method.
  • the capacitive touch screen has the advantages of high durability, long life, and multi-touch function. In recent years, the field of application is expanding.
  • the capacitive touch screen detects a contact position based on a change in capacitance caused by a user's touch applied to the front of the display window, and its application range is gradually increased due to high durability and suitability for sliding type input.
  • Capacitive touch screens can be made semi-permanently because the front face of the screen does not need to be deformed by pressure, and the touchable material, such as a hand or a stylus pen, recognizes its location at close range without direct touch. can do.
  • the capacitive touch screen is based on the change in capacitance caused by the user's touch, the touch screen may not be recognized because there is no change in capacitance when a stylus pen or the like is used.
  • the capacitive touch screen is important in the structure of the touch sensing panel in order to better detect the capacitance change, and the structure of the touch sensing panel for sensing the touch of the small capacitance change area such as a user's fingernail is required.
  • One embodiment of the present invention provides a touch sensing panel capable of increasing a touch recognition rate even with low capacitance generated by a user's touch.
  • One embodiment of the present invention provides a touch sensing panel that can increase a substantial sensing area relative to the number of disposed electrode channels.
  • One embodiment of the present invention aims to increase linearity of the signal of the touch sensing panel without distortion.
  • the touch sensing panel includes a substrate, a touch detection region in which a plurality of sensing regions are arranged two-dimensionally on one surface of the substrate, and a wiring region provided at an outer side of the touch detection region, and the plurality of sensing
  • Each of the regions includes a plurality of first traces formed along a first axis and a plurality of second traces formed along a second axis electrically separated from each other with the plurality of first traces and vertically intersecting the first axis;
  • Each of the plurality of second traces is electrically separated from each other, and the plurality of second traces are formed with a plurality of compensation electrodes protruding on the first axis, and the compensation electrodes of the adjacent second traces are interpolated.
  • the plurality of first traces may be formed in a parallel structure in which separation and recombination are repeated in two or more electrode patterns.
  • the plurality of first traces may be a geometric structure of the two or more electrode patterns formed in the parallel structure form.
  • each of the second traces may be symmetrically formed with the plurality of compensation electrodes based on the respective second axes.
  • the plurality of compensation electrodes may be formed in a geometrical form.
  • each of the first traces may be arranged to fill one or more spaces formed according to the adjacent arrangement of the respective second traces.
  • the substrate is a transparent window, wherein the transparent window may be a tempered glass or a plastic material of high hardness.
  • each of the plurality of first traces and the plurality of second traces may be disposed on different layers.
  • the substrate is a transparent window and the plurality of first traces and the plurality of second traces may be disposed on the same layer by separating portions overlapping each other by a bridge.
  • the substrate is a transparent window and the plurality of first traces may be formed integrally with the transparent window.
  • the substrate is a transparent window
  • the plurality of first traces, the plurality of second traces and the wiring pattern included in the wiring area may be formed integrally with the transparent window.
  • the contact recognition rate may be increased even with a low capacitance generated by a user's touch.
  • a substantial touch sensing area may be increased compared to the number of traces arranged.
  • the linearity of the signal of the touch sensing panel may be increased without distortion.
  • FIG. 1 is a view showing the structure of a touch sensing panel according to an embodiment of the present invention.
  • FIG. 2 is a diagram illustrating a structure of a first trace of a touch sensing panel according to one side of the present invention.
  • FIG 3 is a view illustrating a structure of a second trace of a touch sensing panel according to one side of the present invention.
  • FIG. 4 is a diagram illustrating a structure of a touch sensing panel according to another embodiment of the present invention.
  • FIG. 5 is a diagram illustrating a structure of a first trace of a touch sensing panel according to another embodiment of the present invention.
  • FIG. 6 is a diagram illustrating a structure of a second trace of a touch sensing panel according to another side of the present invention.
  • FIG. 7 is a diagram illustrating a structure of a touch sensing panel according to another embodiment of the present invention.
  • FIG. 8 is a diagram illustrating a structure of a first trace of a touch sensing panel according to another aspect of the present invention.
  • FIG. 9 is a diagram illustrating a structure of a second trace of a touch sensing panel according to another embodiment of the present invention.
  • the touch sensing panel forms a compensation electrode that protrudes to both sides of a regularly arranged trace, and interposes the protruding compensation electrode to be paired with a compensation electrode of another electrode so as to be arranged.
  • the sensing region formed by the compensated compensation electrodes and the overlap sensing region are formed.
  • FIG. 1 is a view showing the structure of a touch sensing panel according to an embodiment of the present invention.
  • the touch sensing panel 100 may include a substrate 110 and a touch detection region 120 in which a plurality of sensing regions 121 are arranged in two dimensions on one surface of the substrate 110. ) And a wiring region 130 provided outside the contact detection region 120.
  • each of the plurality of sensing regions 121 senses a contact applied to the contact detecting region 120, and includes a plurality of first traces 140 and a plurality of agents formed along a first axis. And a plurality of second traces 150 which are electrically separated from the first trace 140 and formed along a second axis that vertically intersects the first axis.
  • a plurality of protruding compensation electrodes 151 are formed in each of the plurality of second traces 150, and the compensation electrodes 151 of the adjacent second traces 150 are interpolated.
  • the plurality of sensing regions 121 and the overlapping sensing region 152 are formed.
  • a plurality of compensation electrodes 151 protruding on the first axis may be formed in each of the plurality of second traces 150, and the compensation electrodes 151 of the adjacent second traces 150 may be formed.
  • the overlapping sensing region 152 may be formed in pairs with each other.
  • a plurality of wiring patterns 131 connected to the plurality of first traces 140 and the plurality of second traces 150 are disposed, and each of the wiring patterns 131 is provided. May be connected to the controller chip 160 to transmit a sensing signal applied from the touch detection region 120 to the controller chip 160.
  • the controller chip 160 may determine the contact input based on the mutual capacitance change generated between the plurality of first traces 140 and the plurality of second traces 150.
  • sensing area refers to a user's touch input, not an area defined by a sensing channel connected to the controller chip 160 or a sensing electrode physically and electrically separated. It should be understood as a certain unit area where possible.
  • the plurality of first traces 140 may be referred to as sensing electrodes for sensing a sensing signal, and the plurality of second traces 150 are electrically separated from the first traces 120 and drive signals. It can be assumed that the driving electrode is applied.
  • the controller chip 160 may apply a signal to at least a portion of the plurality of second traces 150 and obtain the driving signal from the plurality of first traces 140 to determine the contact input. .
  • FIG. 2 is a diagram illustrating a structure of a first trace of a touch sensing panel according to one side of the present invention.
  • the plurality of first traces 140 may be formed in a parallel structure form, for example, a ladder form or a chain form, in which separation and recombination are repeated in two or more electrode patterns.
  • the plurality of first traces 140 may include a geometric structure of the two or more electrode patterns formed in the parallel structure shape.
  • two or more electrode patterns may be repeatedly separated and recombined so that one first trace 140 may have a plurality of hexagonal shapes.
  • the geometry of the first trace 140 of the present invention is only one example of the geometry of the first trace 140 of the present invention, it may be formed of a variety of geometries, such as circular, square, rectangular, diamond, rhombus.
  • the area capable of detecting the capacitance is enlarged compared to the case in which the first trace 140 is formed in the linear structure or the branched structure to recognize the contact with superior sensitivity. Can be.
  • the resistance component of the conductive material may be reduced, and when one line is regarded as a resistor, the entire pattern becomes a parallel structure form by an intersection point.
  • the traces 140 and 150 are made of ITO, ZnO, IZO, CNT, etc., which are transparent conductive materials, the resistance components are relatively large, which may affect the speed and power consumption of the touch screen device. Forming a geometry such as trace 140 can reduce power consumption.
  • FIG 3 is a view illustrating a structure of a second trace of a touch sensing panel according to one side of the present invention.
  • each of the second traces 150 may be symmetrically formed with a plurality of compensation electrodes 151 based on the respective second axes.
  • the second traces 150 are paired with the compensation electrodes 151 of another adjacent second trace 150 to form an overlapping sensing region ( 152 may be formed.
  • the overlap detection region 152 is formed by the plurality of compensation electrodes 151, the overlap detection region in addition to the sensing channel formed by the plurality of detection regions 121 in the contact detection region 120.
  • the sensing region by 152 may be additionally formed.
  • the plurality of compensation electrodes 151 may detect a touch input even with a low capacitance change as the sensing area increases along the overlap sensing area 152.
  • the controller chip 160 of the touch sensing panel 100 may not only overlap the sensing region 121 but also the overlap sensing region ( In operation 152, a change in capacitance may be calculated to determine whether a contact is detected.
  • the plurality of compensation electrodes 151 may be regularly changed in the shape of the protrusion.
  • the plurality of compensation electrodes 150 repeatedly form two or more protruding shapes along the second axis direction in the second trace 150 to design a two-dimensional structure of the overlapping sensing region 152. You may.
  • the plurality of compensation electrodes 151 may be formed in a geometrical form.
  • the plurality of compensation electrodes 151 diagonally form a long flag-shaped electrode with respect to a second axis, and next, form a short five-point electrode with a second axis.
  • the two forms can be repeatedly formed regularly.
  • each trace 140, 150 may be arranged in a form that fills each other's space, for example, each of the first trace 140 is adjacent to each of the second trace 150
  • the contact input can be recognized more finely as the arrangement is made to fill one or more spaces provided according to the arrangement.
  • the substrate 110 may be a transparent window, and the plurality of first traces 140 and the plurality of second traces 150 may be disposed on different layers.
  • the substrate 110 is a transparent window and the plurality of first traces 140 and the plurality of second traces 150 are disposed on the same layer by separating portions overlapping each other by a bridge. Can be.
  • the substrate 110 is a transparent window and the plurality of first traces 140 may be formed integrally with the transparent window.
  • the substrate 110 is a transparent window
  • the wiring patterns included in the plurality of first traces 140, the plurality of second traces 150, and the wiring region 130 are integrated with the transparent window. It can be formed as.
  • the plurality of first traces 140 and the plurality of second traces 150 are disposed outside the substrate 110, some regions are cut along the outer surface of the substrate 110. It can be formed as.
  • the electrode disposed on the left outer side of the substrate 110 among the plurality of second traces 150 may be disposed in a form in which the left region is cut along the second axis along the left outer surface.
  • the touch sensing panel according to one side of the present invention may have an electrode shape of various geometries.
  • FIG. 4 is a diagram illustrating a structure of a touch sensing panel according to another embodiment of the present invention.
  • the touch sensing panel 400 includes a touch detection region 420 and a touch detection region in which a plurality of sensing regions 421 are arranged in two dimensions on one surface of a substrate 410.
  • a wiring area 430 provided at an outer side of the 420 is included.
  • FIG. 5 is a diagram illustrating a structure of a first trace of a touch sensing panel according to another embodiment of the present invention.
  • a plurality of first traces 440 may be formed along the first axis in a shape in which a corner of a hexagonal shape protrudes constantly.
  • FIG. 6 is a diagram illustrating a structure of a second trace of a touch sensing panel according to another side of the present invention.
  • the plurality of second traces 450 are formed along a second axis electrically separated from the first trace 440 and vertically intersecting the first axis.
  • the plurality of second traces 450 450, a plurality of compensation electrodes 451 protruding on the first axis are formed, and compensation electrodes 451 of the adjacent second traces 450 are interpolated, and thus a plurality of sensing areas 421 are provided.
  • FIG. 7 is a diagram illustrating a structure of a touch sensing panel according to another embodiment of the present invention.
  • the touch sensing panel 700 includes a touch detection region 720 and a touch detection region in which a plurality of sensing regions 721 are arranged in two dimensions on one surface of a substrate 710.
  • the wiring area 730 provided at the outside of the area 720 is included.
  • FIG. 8 is a diagram illustrating a structure of a first trace of a touch sensing panel according to another aspect of the present invention.
  • a plurality of first traces 740 are formed along a first axis to sense a contact applied to the contact detection area 720, and the first trace 740 is formed as, for example, a bar shape of a geometry. It can be formed along the axis.
  • FIG. 9 is a diagram illustrating a structure of a second trace of a touch sensing panel according to another embodiment of the present invention.
  • the plurality of second traces 750 are electrically separated from the first traces 740 and are formed along a second axis vertically intersecting the first axis.
  • Each of the plurality of compensation electrodes 751 protruding on the first axis may be formed, and the compensation electrodes 751 of the adjacent second trace 750 may be interpolated, and thus the plurality of sensing areas 721 may be formed.

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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 un panneau de capteurs tactiles qui comporte une région dans laquelle une pluralité de régions de détection sont disposées de manière bidimensionnelle, et une région de câblage formée à la périphérie de la région de détection tactile, chaque région de la pluralité de régions de détection comprend : une pluralité de premières pistes qui détectent un contact exercé sur la région de détection tactile ; et une pluralité de secondes pistes qui sont électriquement isolées de la pluralité de premières pistes et sont formées le long d'un second axe coupant verticalement le premier axe. Dans le panneau de capteurs tactiles de la présente invention, chaque seconde piste de la pluralité de secondes pistes a une pluralité d'électrodes de compensation faisant saillie sur le premier axe et des électrodes de compensation de secondes pistes adjacentes sont disposées selon une manière d'interpolation, formant de cette façon d'une pluralité de régions de détection et recouvrant en partie des régions de détection.
PCT/KR2011/009010 2011-05-12 2011-11-24 Panneau de capteurs tactiles WO2012153899A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2011-0044547 2011-05-12
KR1020110044547A KR20120126610A (ko) 2011-05-12 2011-05-12 접촉 감지 패널

Publications (1)

Publication Number Publication Date
WO2012153899A1 true WO2012153899A1 (fr) 2012-11-15

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PCT/KR2011/009010 WO2012153899A1 (fr) 2011-05-12 2011-11-24 Panneau de capteurs tactiles

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KR (1) KR20120126610A (fr)
WO (1) WO2012153899A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105556437A (zh) * 2013-09-16 2016-05-04 立顶科技有限公司 触摸面板
CN109416610A (zh) * 2018-09-18 2019-03-01 深圳市汇顶科技股份有限公司 触控组件、装置及触控方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102082479B1 (ko) * 2018-03-19 2020-02-27 동우 화인켐 주식회사 터치 센서 및 이를 포함하는 화상 표시 장치

Citations (4)

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KR20090098947A (ko) * 2009-08-25 2009-09-18 (주)세인정보통신 낮은 저항 값을 가지는 캐패시티브 방식 터치 스크린의 투명전극 패턴 구조
KR20090114505A (ko) * 2008-04-30 2009-11-04 (주)멜파스 터치스크린 패널, 터치스크린 장치 및 터치스크린 제어장치
KR20100130156A (ko) * 2009-06-02 2010-12-10 아바고 테크놀로지스 이씨비유 아이피 (싱가포르) 피티이 리미티드 상호 커패시턴스 터치스크린
US20110095990A1 (en) * 2009-10-23 2011-04-28 Harald Philipp Interdigitated touchscreen electrodes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090114505A (ko) * 2008-04-30 2009-11-04 (주)멜파스 터치스크린 패널, 터치스크린 장치 및 터치스크린 제어장치
KR20100130156A (ko) * 2009-06-02 2010-12-10 아바고 테크놀로지스 이씨비유 아이피 (싱가포르) 피티이 리미티드 상호 커패시턴스 터치스크린
KR20090098947A (ko) * 2009-08-25 2009-09-18 (주)세인정보통신 낮은 저항 값을 가지는 캐패시티브 방식 터치 스크린의 투명전극 패턴 구조
US20110095990A1 (en) * 2009-10-23 2011-04-28 Harald Philipp Interdigitated touchscreen electrodes

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105556437A (zh) * 2013-09-16 2016-05-04 立顶科技有限公司 触摸面板
CN105556437B (zh) * 2013-09-16 2019-12-13 立顶科技有限公司 触摸面板
CN109416610A (zh) * 2018-09-18 2019-03-01 深圳市汇顶科技股份有限公司 触控组件、装置及触控方法
CN109416610B (zh) * 2018-09-18 2022-04-19 深圳市汇顶科技股份有限公司 触控组件、装置及触控方法
US11334204B2 (en) 2018-09-18 2022-05-17 Shenzhen GOODIX Technology Co., Ltd. Touch component, touch apparatus, and touch-control method

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