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WO2008017077A3 - Multi-touch sensing display through frustrated total internal reflection - Google Patents

Multi-touch sensing display through frustrated total internal reflection Download PDF

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Publication number
WO2008017077A3
WO2008017077A3 PCT/US2007/075221 US2007075221W WO2008017077A3 WO 2008017077 A3 WO2008017077 A3 WO 2008017077A3 US 2007075221 W US2007075221 W US 2007075221W WO 2008017077 A3 WO2008017077 A3 WO 2008017077A3
Authority
WO
WIPO (PCT)
Prior art keywords
internal reflection
total internal
optical waveguide
systems
frustrated total
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/US2007/075221
Other languages
French (fr)
Other versions
WO2008017077A2 (en
WO2008017077A4 (en
Inventor
Jefferson Y Han
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.)
Perceptive Pixel Inc
Original Assignee
Perceptive Pixel Inc
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 Perceptive Pixel Inc filed Critical Perceptive Pixel Inc
Priority to EP07813780A priority Critical patent/EP2047308A4/en
Priority to JP2009523076A priority patent/JP2009545828A/en
Publication of WO2008017077A2 publication Critical patent/WO2008017077A2/en
Publication of WO2008017077A3 publication Critical patent/WO2008017077A3/en
Anticipated expiration legal-status Critical
Publication of WO2008017077A4 publication Critical patent/WO2008017077A4/en
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
    • G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
    • G06F3/0425—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means using a single imaging device like a video camera for tracking the absolute position of a single or a plurality of objects with respect to an imaged reference surface, e.g. video camera imaging a display or a projection screen, a table or a wall surface, on which a computer generated image is displayed or projected
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
    • G02B6/122—Basic optical elements, e.g. light-guiding paths
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • 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
    • G06F3/0304—Detection arrangements using opto-electronic means
    • 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
    • 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
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04166—Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F2203/04109—FTIR in optical digitiser, i.e. touch detection by frustrating the total internal reflection within an optical waveguide due to changes of optical properties or deformation at the touch location

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Optics & Photonics (AREA)
  • Multimedia (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Position Input By Displaying (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)

Abstract

High-resolution, scalable multi-touch sensing display systems and processes based on frustrated total internal reflection employ an optical waveguide (12, 32, 42, 62, 76, 84) that receives light, such as infrared light, that undergoes total internal reflection and an imaging sensor (20, 50, 72a, 72b, 72c, 86, 104a, 104b) that detects light that escapes the optical waveguide (12, 32, 42, 62, 76, 84) caused by frustration of the total internal reflection due to contact by a user. The optical waveguide (12, 32, 42, 62, 76, 84) may be fitted with a compliant surface overlay (48, 64, 78, 88) to greatly improve sensing performance, minimize the affect of contaminants on and damage to the contact surface, to generally extend system life and to provide other benefits. The systems and processes provide true multi-touch (multi-input) and high- spatial and temporal resolution capability due to the continuous imaging of the frustrated total internal reflection that escapes the entire optical waveguide (12, 32, 42, 62, 76, 84). Among other features and benefits, the systems and processes are scalable to large installations and are well suited for use with rear-projection (22, 52, 74a, 74b, 74c) and other display devices.
PCT/US2007/075221 2006-08-03 2007-08-03 Multi-touch sensing display through frustrated total internal reflection Ceased WO2008017077A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP07813780A EP2047308A4 (en) 2006-08-03 2007-08-03 Multi-touch sensing display through frustrated total internal reflection
JP2009523076A JP2009545828A (en) 2006-08-03 2007-08-03 Multi-contact detection display device with total reflection interference

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US82132506P 2006-08-03 2006-08-03
US60/821,325 2006-08-03

Publications (3)

Publication Number Publication Date
WO2008017077A2 WO2008017077A2 (en) 2008-02-07
WO2008017077A3 true WO2008017077A3 (en) 2008-12-18
WO2008017077A4 WO2008017077A4 (en) 2009-02-19

Family

ID=38997904

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/075221 Ceased WO2008017077A2 (en) 2006-08-03 2007-08-03 Multi-touch sensing display through frustrated total internal reflection

Country Status (4)

Country Link
EP (1) EP2047308A4 (en)
JP (1) JP2009545828A (en)
KR (1) KR20090060283A (en)
WO (1) WO2008017077A2 (en)

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Also Published As

Publication number Publication date
WO2008017077A2 (en) 2008-02-07
JP2009545828A (en) 2009-12-24
EP2047308A2 (en) 2009-04-15
EP2047308A4 (en) 2010-11-24
KR20090060283A (en) 2009-06-11
WO2008017077A4 (en) 2009-02-19

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