WO2000060406A3 - Flat panel liquid crystal display - Google Patents

Flat panel liquid crystal display Download PDF

Info

Publication number
WO2000060406A3
WO2000060406A3 PCT/US2000/007977 US0007977W WO0060406A3 WO 2000060406 A3 WO2000060406 A3 WO 2000060406A3 US 0007977 W US0007977 W US 0007977W WO 0060406 A3 WO0060406 A3 WO 0060406A3
Authority
WO
WIPO (PCT)
Prior art keywords
liquid crystal
crystal display
flat panel
panel liquid
backlighting
Prior art date
Application number
PCT/US2000/007977
Other languages
French (fr)
Other versions
WO2000060406A2 (en
Inventor
Rick Johnson
Scott Wolfe
Keith Deutch
Scott Hoffman
Darrell Henke
Saied Barakchi
Original Assignee
Honeywell Int 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 Honeywell Int Inc filed Critical Honeywell Int Inc
Priority to EP00919647A priority Critical patent/EP1166173B1/en
Priority to DE60008225T priority patent/DE60008225T2/en
Publication of WO2000060406A2 publication Critical patent/WO2000060406A2/en
Publication of WO2000060406A3 publication Critical patent/WO2000060406A3/en

Links

Classifications

    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133603—Direct backlight with LEDs
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133628—Illuminating devices with cooling means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S362/00—Illumination
    • Y10S362/80—Light emitting diode
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S362/00—Illumination
    • Y10S362/812—Signs

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Planar Illumination Modules (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

A device and method for backlighting a liquid crystal display using light emitting diodes (12) arranged in a two-dimensional array.
PCT/US2000/007977 1999-04-05 2000-03-24 Flat panel liquid crystal display WO2000060406A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP00919647A EP1166173B1 (en) 1999-04-05 2000-03-24 Improved flat panel liquid crystal display
DE60008225T DE60008225T2 (en) 1999-04-05 2000-03-24 IMPROVED FLAT SCREEN LIQUID CRYSTAL DISPLAY

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US12788699P 1999-04-05 1999-04-05
US60/127,886 1999-04-05
US09/384,137 1999-08-27
US09/384,137 US6439731B1 (en) 1999-04-05 1999-08-27 Flat panel liquid crystal display

Publications (2)

Publication Number Publication Date
WO2000060406A2 WO2000060406A2 (en) 2000-10-12
WO2000060406A3 true WO2000060406A3 (en) 2001-03-08

Family

ID=26826057

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/007977 WO2000060406A2 (en) 1999-04-05 2000-03-24 Flat panel liquid crystal display

Country Status (4)

Country Link
US (1) US6439731B1 (en)
EP (1) EP1166173B1 (en)
DE (1) DE60008225T2 (en)
WO (1) WO2000060406A2 (en)

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Also Published As

Publication number Publication date
EP1166173B1 (en) 2004-02-11
WO2000060406A2 (en) 2000-10-12
DE60008225T2 (en) 2004-12-09
DE60008225D1 (en) 2004-03-18
US6439731B1 (en) 2002-08-27
EP1166173A2 (en) 2002-01-02

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