ATE551569T1 - Verfahren und vorrichtung zur herstellung einer gleichmässigen rückbeleuchtung - Google Patents

Verfahren und vorrichtung zur herstellung einer gleichmässigen rückbeleuchtung

Info

Publication number
ATE551569T1
ATE551569T1 AT04104472T AT04104472T ATE551569T1 AT E551569 T1 ATE551569 T1 AT E551569T1 AT 04104472 T AT04104472 T AT 04104472T AT 04104472 T AT04104472 T AT 04104472T AT E551569 T1 ATE551569 T1 AT E551569T1
Authority
AT
Austria
Prior art keywords
hot spot
light guide
spot filter
producing even
image
Prior art date
Application number
AT04104472T
Other languages
English (en)
Inventor
James Robinson
Marc Drader
Michael Purdy
Original Assignee
Research In Motion 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 Research In Motion Ltd filed Critical Research In Motion Ltd
Application granted granted Critical
Publication of ATE551569T1 publication Critical patent/ATE551569T1/de

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
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • 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
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide
    • G02B6/0061—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide to provide homogeneous light output intensity
    • 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
    • G02F1/133611—Direct backlight including means for improving the brightness uniformity
    • 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
    • G02F1/133621—Illuminating devices providing coloured light
    • G02F1/133622—Colour sequential illumination

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Mathematical Physics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Planar Illumination Modules (AREA)
  • Telephone Set Structure (AREA)
  • Mobile Radio Communication Systems (AREA)
AT04104472T 2004-09-15 2004-09-15 Verfahren und vorrichtung zur herstellung einer gleichmässigen rückbeleuchtung ATE551569T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04104472A EP1645798B1 (de) 2004-09-15 2004-09-15 Verfahren und Vorrichtung zur Herstellung einer gleichmässigen Rückbeleuchtung

Publications (1)

Publication Number Publication Date
ATE551569T1 true ATE551569T1 (de) 2012-04-15

Family

ID=34929577

Family Applications (1)

Application Number Title Priority Date Filing Date
AT04104472T ATE551569T1 (de) 2004-09-15 2004-09-15 Verfahren und vorrichtung zur herstellung einer gleichmässigen rückbeleuchtung

Country Status (5)

Country Link
EP (1) EP1645798B1 (de)
CN (2) CN102537851B (de)
AT (1) ATE551569T1 (de)
CA (2) CA2517998C (de)
SG (2) SG141447A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1650730B1 (de) 2004-10-25 2009-12-30 Barco NV Optische Korrektur für Leuchtpaneele mit hoher Gleichmäßigkeit
CN108831386B (zh) 2018-06-27 2020-06-30 京东方科技集团股份有限公司 背光模组及其控制方法、拼接显示装置及其背光控制方法、显示模组
CN115223465B (zh) * 2021-04-17 2024-12-06 江门劳士国际电气有限公司 一种标志灯具制造方法以及透光组件、标志灯具

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH039306A (ja) * 1989-06-07 1991-01-17 Mitsubishi Petrochem Co Ltd バックライト装置
DE69022891T2 (de) 1989-06-15 1996-05-15 Matsushita Electric Ind Co Ltd Gerät zur Kompensierung von Videosignalen.
US5680233A (en) * 1994-04-21 1997-10-21 Reveo, Inc. Image display systems having direct and projection viewing modes
GB2267378B (en) * 1992-05-22 1996-07-10 Nokia Mobile Phones Uk Illuminated LCD apparatus
JP2002008423A (ja) * 2000-06-23 2002-01-11 Sanyo Electric Co Ltd バックライト装置
CN2498628Y (zh) * 2001-10-15 2002-07-03 胜华科技股份有限公司 只使用一个点光源的导光板

Also Published As

Publication number Publication date
CN102537851A (zh) 2012-07-04
SG121105A1 (en) 2006-04-26
CN1749828B (zh) 2012-02-15
HK1088654A1 (en) 2006-11-10
EP1645798A1 (de) 2006-04-12
SG141447A1 (en) 2008-04-28
CA2752213A1 (en) 2006-03-15
CA2517998A1 (en) 2006-03-15
CA2517998C (en) 2012-11-27
EP1645798B1 (de) 2012-03-28
CN102537851B (zh) 2015-10-07
CN1749828A (zh) 2006-03-22
CA2752213C (en) 2015-05-05

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