SG47749A1 - Lcd touch screen - Google Patents

Lcd touch screen

Info

Publication number
SG47749A1
SG47749A1 SG1996004195A SG1996004195A SG47749A1 SG 47749 A1 SG47749 A1 SG 47749A1 SG 1996004195 A SG1996004195 A SG 1996004195A SG 1996004195 A SG1996004195 A SG 1996004195A SG 47749 A1 SG47749 A1 SG 47749A1
Authority
SG
Singapore
Prior art keywords
touch screen
lcd touch
lcd
screen
touch
Prior art date
Application number
SG1996004195A
Other languages
English (en)
Inventor
Gregory J May
Original Assignee
Hewlett Packard Co
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 Hewlett Packard Co filed Critical Hewlett Packard Co
Publication of SG47749A1 publication Critical patent/SG47749A1/en

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
    • G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
    • G06F3/0421—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by interrupting or reflecting a light beam, e.g. optical touch-screen
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Mathematical Physics (AREA)
  • Position Input By Displaying (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Electronic Switches (AREA)
SG1996004195A 1990-05-25 1991-05-14 Lcd touch screen SG47749A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/529,099 US5105186A (en) 1990-05-25 1990-05-25 Lcd touch screen

Publications (1)

Publication Number Publication Date
SG47749A1 true SG47749A1 (en) 1998-04-17

Family

ID=24108519

Family Applications (1)

Application Number Title Priority Date Filing Date
SG1996004195A SG47749A1 (en) 1990-05-25 1991-05-14 Lcd touch screen

Country Status (6)

Country Link
US (1) US5105186A (fr)
EP (1) EP0458513B1 (fr)
JP (1) JP3385038B2 (fr)
CA (1) CA2038598C (fr)
DE (1) DE69128106T2 (fr)
SG (1) SG47749A1 (fr)

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CA2038598C (fr) 2002-01-08
CA2038598A1 (fr) 1991-11-26
JP3385038B2 (ja) 2003-03-10
EP0458513B1 (fr) 1997-11-05
DE69128106T2 (de) 1998-02-26
DE69128106D1 (de) 1997-12-11
EP0458513A1 (fr) 1991-11-27
US5105186A (en) 1992-04-14
JPH04232524A (ja) 1992-08-20

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