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WO2004049094A3 - Dispositif d’affichage a detection de proximite et procede d’utilisation de ce dispositif - Google Patents

Dispositif d’affichage a detection de proximite et procede d’utilisation de ce dispositif Download PDF

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Publication number
WO2004049094A3
WO2004049094A3 PCT/EP2003/050900 EP0350900W WO2004049094A3 WO 2004049094 A3 WO2004049094 A3 WO 2004049094A3 EP 0350900 W EP0350900 W EP 0350900W WO 2004049094 A3 WO2004049094 A3 WO 2004049094A3
Authority
WO
WIPO (PCT)
Prior art keywords
frequency signal
control signal
generating
waves
signal
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/EP2003/050900
Other languages
English (en)
Other versions
WO2004049094A2 (fr
Inventor
Pierre Fagard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thales SA
Original Assignee
Thales SA
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 Thales SA filed Critical Thales SA
Priority to EP03796061A priority Critical patent/EP1565806A2/fr
Priority to AU2003298327A priority patent/AU2003298327A1/en
Priority to JP2004554552A priority patent/JP4293369B2/ja
Priority to US10/536,349 priority patent/US7663611B2/en
Publication of WO2004049094A2 publication Critical patent/WO2004049094A2/fr
Publication of WO2004049094A3 publication Critical patent/WO2004049094A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/13338—Input devices, e.g. touch panels
    • G—PHYSICS
    • G06—COMPUTING 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
    • G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/96—Touch switches
    • H03K17/962—Capacitive touch switches

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Liquid Crystal (AREA)
  • Position Input By Displaying (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

Dispositif d'affichage à détection de proximité et procédé d'utilisation de ce dispositif L'invention se rapporte à un dispositif d'affichage comportant des moyens de détection de proximité et à un procédé d'utilisation de ce dispositif. Le dispositif comporte une couche (3) de cristal liquide, au moins deux électrodes (4, 5 et 7) permettant d'exciter le cristal liquide, des moyens pour générer un signal de commande (30) des électrodes, des moyens pour générer un signal haute fréquence (31) appliqué à la seconde électrode, des moyens pour détecter une éventuelle modification du signal haute fréquence (32). Le dispositif comporte également des moyens de mixage (Rscb) du signal haute fréquence et du signal de commande. Dans le procédé, les moyens pour générer un signal de commande (30) fournissent un signal périodique comportant des alternances positives et négatives et les moyens pour générer un signal haute fréquence (31) injectent un signal haute fréquence à quantité sensiblement égale pendant autant d'alternances positives et que d'alternances négatives du signal de commande (30).
PCT/EP2003/050900 2002-11-28 2003-11-26 Dispositif d’affichage a detection de proximite et procede d’utilisation de ce dispositif Ceased WO2004049094A2 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP03796061A EP1565806A2 (fr) 2002-11-28 2003-11-26 DISPOSITIF D’AFFICHAGE A DETECTION DE PROXIMITE ET PROCEDE D’UTILISATION DE CE DISPOSITIF
AU2003298327A AU2003298327A1 (en) 2002-11-28 2003-11-26 Proximity detection-display device and method of using said device
JP2004554552A JP4293369B2 (ja) 2002-11-28 2003-11-26 接近検知の表示装置および装置の使用方法
US10/536,349 US7663611B2 (en) 2002-11-28 2003-11-26 Display device with proximity detection and method of using said device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0215071 2002-11-28
FR0215071A FR2847997B1 (fr) 2002-11-28 2002-11-28 Dispositif d'affichage a detection de proximite et procede d'utilisation de ce procede

Publications (2)

Publication Number Publication Date
WO2004049094A2 WO2004049094A2 (fr) 2004-06-10
WO2004049094A3 true WO2004049094A3 (fr) 2004-11-18

Family

ID=32309860

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2003/050900 Ceased WO2004049094A2 (fr) 2002-11-28 2003-11-26 Dispositif d’affichage a detection de proximite et procede d’utilisation de ce dispositif

Country Status (7)

Country Link
US (1) US7663611B2 (fr)
EP (1) EP1565806A2 (fr)
JP (1) JP4293369B2 (fr)
CN (1) CN100392575C (fr)
AU (1) AU2003298327A1 (fr)
FR (1) FR2847997B1 (fr)
WO (1) WO2004049094A2 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006021099A1 (de) * 2006-05-05 2007-11-15 Benq Mobile Gmbh & Co. Ohg LCD-Schaltung und Verfahren zum Ansteuern zumindest eines Bildpunktes einer Flüssigkristallanzeige
DE202006009543U1 (de) * 2006-06-19 2007-10-31 Liebherr-Hausgeräte Ochsenhausen GmbH Kühl- und/oder Gefriergerät sowie Bedieneinrichtung hierfür
CN101105614B (zh) * 2006-07-10 2011-06-15 瀚宇彩晶股份有限公司 具有感光单元的图像感测阵列与液晶显示器
FR2909464B1 (fr) * 2006-12-01 2009-01-23 Thales Sa Dispositif d'entree de donnees et procede de mise en oeuvre du dispositif
DE112009002462T5 (de) * 2008-12-04 2012-05-31 Mitsubishi Electric Corporation Anzeigeeingabeeinrichtung
US10429998B2 (en) * 2014-07-23 2019-10-01 Cypress Semiconductor Corporation Generating a baseline compensation signal based on a capacitive circuit
US9746974B2 (en) * 2014-08-21 2017-08-29 Cypress Semiconductor Corporation Providing a baseline capacitance for a capacitance sensing channel
KR102596607B1 (ko) * 2016-12-20 2023-11-01 엘지디스플레이 주식회사 터치회로, 터치 센싱 장치 및 터치 센싱 방법

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0340096A1 (fr) * 1988-04-28 1989-11-02 Sextant Avionique Afficheur à surface tactile incorporée
EP0346211A1 (fr) * 1988-06-08 1989-12-13 Jaeger Touche perfectionnée exploitant les propriétés d'un cristal liquide
FR2820869A1 (fr) * 2001-02-13 2002-08-16 Thomson Csf Dispositif d'affichage matriciel a detection de proximite

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5844415A (en) * 1994-02-03 1998-12-01 Massachusetts Institute Of Technology Method for three-dimensional positions, orientation and mass distribution
US5841313A (en) * 1995-08-30 1998-11-24 Cherry Semiconductor Corporation Switch with programmable delay
US5777596A (en) * 1995-11-13 1998-07-07 Symbios, Inc. Touch sensitive flat panel display
JP3394187B2 (ja) * 1997-08-08 2003-04-07 シャープ株式会社 座標入力装置および表示一体型座標入力装置
GB0114456D0 (en) * 2001-06-14 2001-08-08 Koninkl Philips Electronics Nv Object sensing

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0340096A1 (fr) * 1988-04-28 1989-11-02 Sextant Avionique Afficheur à surface tactile incorporée
EP0346211A1 (fr) * 1988-06-08 1989-12-13 Jaeger Touche perfectionnée exploitant les propriétés d'un cristal liquide
FR2820869A1 (fr) * 2001-02-13 2002-08-16 Thomson Csf Dispositif d'affichage matriciel a detection de proximite

Also Published As

Publication number Publication date
CN1754140A (zh) 2006-03-29
EP1565806A2 (fr) 2005-08-24
US7663611B2 (en) 2010-02-16
AU2003298327A8 (en) 2004-06-18
CN100392575C (zh) 2008-06-04
JP2006508444A (ja) 2006-03-09
FR2847997B1 (fr) 2005-10-07
FR2847997A1 (fr) 2004-06-04
AU2003298327A1 (en) 2004-06-18
US20060125717A1 (en) 2006-06-15
WO2004049094A2 (fr) 2004-06-10
JP4293369B2 (ja) 2009-07-08

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