WO2009038277A1 - Ecran tactile résistif qui peut identifier des touches multiples - Google Patents

Ecran tactile résistif qui peut identifier des touches multiples Download PDF

Info

Publication number
WO2009038277A1
WO2009038277A1 PCT/KR2008/003638 KR2008003638W WO2009038277A1 WO 2009038277 A1 WO2009038277 A1 WO 2009038277A1 KR 2008003638 W KR2008003638 W KR 2008003638W WO 2009038277 A1 WO2009038277 A1 WO 2009038277A1
Authority
WO
WIPO (PCT)
Prior art keywords
resistive
detection pattern
touch screen
touch
resistive detection
Prior art date
Application number
PCT/KR2008/003638
Other languages
English (en)
Inventor
Minsung Yang
Original Assignee
Ad Semicondictor Co., Ltd.
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 Ad Semicondictor Co., Ltd. filed Critical Ad Semicondictor Co., Ltd.
Publication of WO2009038277A1 publication Critical patent/WO2009038277A1/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
    • G06F3/045—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact
    • 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
    • G06F2203/04104—Multi-touch detection in digitiser, i.e. details about the simultaneous detection of a plurality of touching locations, e.g. multiple fingers or pen and finger

Definitions

  • the present invention relates to a resistive touch screen, and more particularly to a resistive touch screen which can identify a multi-touch.
  • FIG. 1 is a diagram for explaining a conventional resistive touch screen.
  • a lower transparent film 20 and an upper transparent film 30 are stacked on an insulating film 10.
  • ITO resistive films 20a and 30a are formed on the upper surface of the lower transparent film 20 and the lower surface of the upper transparent film 30, respectively.
  • Electrodes 20b and 30b, to which voltages are applied, are disposed at opposite ends of the ITO resistive films 20a and 30a, respectively.
  • the Y-axis electrodes 20b disposed on the lower transparent film 20 and the X-axis electrodes 30b disposed on the upper transparent film 30 are arranged to be orthogonal to each other.
  • the present invention has been made in view of the above problems, and it is an object of the present invention to provide a resistive touch screen which can identify a multi-touch.
  • a resistive touch screen capable of identifying a multi-touch comprising: an insulating film; a lower transparent film stacked on the insulating film; an upper transparent film stacked on the lower transparent film; a first resistive detection pattern which is formed on the lower transparent film and has a plurality of stripes arranged in parallel; a second resistive detection pattern which is formed on the upper transparent film and has a plurality of stripes arranged in parallel, wherein the first resistive detection pattern and the second resistive detection pattern cross each other perpendicularly; first electrodes disposed at opposite ends of the stripes of the first resistive detection pattern; second electrodes disposed at opposite ends of the stripes of the second resistive detection pattern; and a coordinate identification unit which applies voltages to the first electrodes and the second electrodes and reads voltages of a touched portion in which a touch is made to obtain X and Y coordinates.
  • the first resistive detection pattern is disposed on an upper surface of the lower transparent film, and the second resistive detection pattern is disposed on a lower surface of the upper transparent film.
  • the first resistive detection pattern and the second resistive detection pattern are formed as transparent conductive films.
  • the coordinate identification unit alternately applies voltages to only stripes related to the touched portion among the stripes of the first resistive detection pattern and the second resistive detection pattern to obtain X and Y coordinates.
  • the coordinate identification unit detects a position variation to a voltage variation occurring when a touch position varies in an area where the first resistive detection pattern and the second resistive detection pattern cross each other in the touched portion.
  • FIG. 1 is a diagram for explaining a conventional resistive touch screen
  • FIG. 2 illustrates a diagram for explaining a resistive touch screen capable of identifying a multi-touch according to the present invention
  • FIG. 3 is a top view of Fig. 2.
  • FIG. 2 illustrates a diagram for explaining a resistive touch screen capable of identifying a multi-touch according to the present invention.
  • a lower transparent film 200 and an upper transparent film 300 are stacked on an insulating film 100.
  • a Y-axis transparent resistive detection pattern 200a is formed on the upper surface of the lower transparent film 200, and an X-axis transparent resistive detection pattern 300a is formed on the lower surface of the upper transparent film 300.
  • the transparent resistive detection patterns 200a and 300a may be formed as ITO films as in the conventional case. However, in a different way from the conventional case, a single film has a plurality of stripes.
  • the Y-axis transparent resistive detection pattern 200a and the X-axis transparent resistive detection pattern 300a are arranged to be orthogonal to each other while the stripes form rows and columns therein.
  • Y-axis electrodes 200b and X-axis electrodes 300b are formed at opposite ends of the stripes of the transparent resistive detection patterns 200a and 300a, respectively.
  • the electrodes 200b and 300b may employ silver ink.
  • FIG. 3 is a top view of Fig. 2, which shows only the transparent resistive detection patterns 200a and 300a and the electrodes 200b and 300b in order to explain an advantage of the present invention capable of identifying a multi-touch differently from the conventional case.
  • the delta V represents a voltage variation occurring when a position of a point A varies in an area in which an X2-axis intersects a Yl -axis.
  • the maximum delta V does not exceed VDD * (1/6) in X-axis, and the maximum delta V does not exceed VDD * (1/9) in Y-axis.
  • positions of points C, D and E can be independently represented by the above-described method.
  • the point C is represented by a general matrix method, the point C cannot be detected if the point C is touched in a state where the points A and D are touched.
  • the point C can be independently detected in the present invention.
  • the voltage value represents a Y coordinate value.
  • the voltage value represents a Y coordinate value.
  • F and G exist in a portion in which X5 column intersects Y7 row in the transparent resistive detection patterns 200a and 300a. This problem may be solved by further dividing the rows and columns of the transparent resistive detection patterns 200a and 300a. It is preferable to minimize distances between the rows and between the columns of the transparent resistive detection patterns 200a and 300a within a range capable of maintaining insulation of the ITO serving as a transparent conductive thin film.
  • the vertical structure of the touch screen according to the present invention has the same structure as the structure of the conventional resistive touch screen. Accordingly, in addition to fingers, all tools, for example, a stylus pen, a card and a nail, which can be used for the conventional resistive touch screen, can be used to touch the touch screen according to the present invention.
  • an identification circuit for reading coordinate values of the touch screen similarly to the conventional method for reading coordinate values of the conventional resistive touch screen, voltages are applied to only the column and the row related to the area in which a touch is made to read the coordinates. Accordingly, it is possible to prevent a waste of time and power. Particularly, in order to minimize battery consumption in a mobile device, standby power should be minimized.
  • a multi-touch cannot be identified in the conventional resistive touch screen, according to the present invention, it is possible to provide a touch screen capable of identifying a multi-touch which while maintaining all advantages of the conventional resistive touch screen.

Abstract

L'invention concerne un écran tactile résistif qui peut identifier des touches multiples. Un premier motif de détection résistif et un second motif de détection résistif ayant une pluralité de bandes parallèles sont disposés perpendiculairement l'un à l'autre, et une tension est appliquée alternativement uniquement aux bandes liées à une partie touchée parmi les bandes du premier motif de détection résistif et du second motif de détection résistif, afin d'obtenir des coordonnées X et Y. Bien qu'un seul point de touche soit identifié dans un cas classique, il est possible de fournir un écran tactile capable d'identifier des touches multiples qui ne peuvent pas être identifiées avec l'écran tactile résistif classique.
PCT/KR2008/003638 2007-09-17 2008-06-25 Ecran tactile résistif qui peut identifier des touches multiples WO2009038277A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20070094198 2007-09-17
KR10-2007-0094198 2007-09-17

Publications (1)

Publication Number Publication Date
WO2009038277A1 true WO2009038277A1 (fr) 2009-03-26

Family

ID=40468064

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2008/003638 WO2009038277A1 (fr) 2007-09-17 2008-06-25 Ecran tactile résistif qui peut identifier des touches multiples

Country Status (2)

Country Link
TW (1) TW200915165A (fr)
WO (1) WO2009038277A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010108692A3 (fr) * 2009-03-27 2011-04-28 Polyic Gmbh & Co. Kg Couche fonctionnelle électrique, son procédé de fabrication et son utilisation
EP2500806A1 (fr) * 2009-09-23 2012-09-19 Egalax_Empia Technology Inc. Dispositif de détection de position et son procédé
EP2811381A1 (fr) 2013-06-05 2014-12-10 Spreadtrum Communications (Shanghai) Co., Ltd. Procédé et dispositif de détection tactile

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8432373B2 (en) * 2009-05-04 2013-04-30 Au Optronics Corporation Patterned resistive touch panel
TWI406165B (zh) * 2009-08-10 2013-08-21 Innolux Corp 觸控面板之多點辨識方法
TWI402730B (zh) * 2009-09-30 2013-07-21 晶宏半導體股份有限公司 Control module of touch module
TWI412983B (zh) * 2010-01-21 2013-10-21 在電容式觸控面板上進行多點觸控的偵測方法
TWI499962B (zh) * 2010-03-03 2015-09-11 Mobile Technology Corp I 電阻式多點觸控面板及其座標偵測方法
US8217809B2 (en) * 2010-06-22 2012-07-10 Microsoft Corporation Low power sensing via resistive sensor matrix
TWI450177B (zh) * 2011-02-11 2014-08-21 Wintek Corp 電阻式觸控裝置及補償電壓測定方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020074981A (ko) * 2001-03-23 2002-10-04 이터보터치 테크날러지 인코퍼레이티드 터치스크린 선형화 패턴의 제조방법
US20020185981A1 (en) * 2001-05-24 2002-12-12 Mitsubishi Electric Research Laboratories, Inc. Multi-user touch surface
US20040095336A1 (en) * 2002-11-20 2004-05-20 Hong Hee Jung Digital resistive-type touch panel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020074981A (ko) * 2001-03-23 2002-10-04 이터보터치 테크날러지 인코퍼레이티드 터치스크린 선형화 패턴의 제조방법
US20020185981A1 (en) * 2001-05-24 2002-12-12 Mitsubishi Electric Research Laboratories, Inc. Multi-user touch surface
US20040095336A1 (en) * 2002-11-20 2004-05-20 Hong Hee Jung Digital resistive-type touch panel

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010108692A3 (fr) * 2009-03-27 2011-04-28 Polyic Gmbh & Co. Kg Couche fonctionnelle électrique, son procédé de fabrication et son utilisation
US9513758B2 (en) 2009-03-27 2016-12-06 Polyic Gmbh & Co. Kg Electrical functional layer construction, production method and use thereof
EP2500806A1 (fr) * 2009-09-23 2012-09-19 Egalax_Empia Technology Inc. Dispositif de détection de position et son procédé
EP2500806A4 (fr) * 2009-09-23 2014-08-27 Egalax Empia Technology Inc Dispositif de détection de position et son procédé
EP2811381A1 (fr) 2013-06-05 2014-12-10 Spreadtrum Communications (Shanghai) Co., Ltd. Procédé et dispositif de détection tactile
US9785300B2 (en) 2013-06-05 2017-10-10 Spreadtrum Communications (Shanghai) Co., Ltd. Touch detection method and device

Also Published As

Publication number Publication date
TW200915165A (en) 2009-04-01

Similar Documents

Publication Publication Date Title
WO2009038277A1 (fr) Ecran tactile résistif qui peut identifier des touches multiples
EP3196741B1 (fr) Écran tactile et procédé associé de positionnement de contact tactile, et dispositif d'affichage
JP5524963B2 (ja) 多様なサイズおよび多様なインピーダンスの間隔保持手段を有する多点接触タッチ検出センサ
TWI387908B (zh) 物體位置偵測裝置與方法及應用該物體位置偵測裝置之影像顯示系統
US8115744B2 (en) Multi-point touch-sensitive system
US8106891B2 (en) Multi-point touch-sensitive device
CN104133602B (zh) 触摸屏面板、触摸感测控制器和触摸感测系统
US8139040B2 (en) Method of operating a multi-point touch-sensitive system
JP2008217784A (ja) タッチパネル
US20160098147A1 (en) Hover Position Calculation in a Touchscreen Device
US20120206401A1 (en) Hybrid touch panel device
US9983738B2 (en) Contact detection mode switching in a touchscreen device
KR101686092B1 (ko) 터치패널 및 그의 구동방법
TW201314540A (zh) 應用於表面電容式觸控面板之多點觸控偵測系統及方法
KR20100022748A (ko) 터치센서 및 이를 이용한 접촉력 감지 방법
US20190384451A1 (en) Position sensor, position sensing method, and associated state-switching method
US8629853B2 (en) Touch panel and the touch display device using the same
CN101918910B (zh) 电阻式触摸屏幕
KR101146098B1 (ko) 채널분할형 센서패턴을 구비한 터치 스크린
CN104345979B (zh) 触摸面板、信息记录介质和信息获取方法
KR101077433B1 (ko) 터치스크린의 제조방법
CN103513835B (zh) 一种基于互电容触摸屏的触摸坐标检测方法
US9977548B2 (en) Touch panel and touch electrode structure thereof
KR101006457B1 (ko) 다중터치인식이 가능한 저항막 방식 터치스크린
JP5828519B2 (ja) 座標入力装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08766597

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 11/08/2010)

122 Ep: pct application non-entry in european phase

Ref document number: 08766597

Country of ref document: EP

Kind code of ref document: A1