DE69332104D1 - Hintergrundbeleuchtungssystem für flüssigkristallanzeige - Google Patents
Hintergrundbeleuchtungssystem für flüssigkristallanzeigeInfo
- Publication number
- DE69332104D1 DE69332104D1 DE69332104T DE69332104T DE69332104D1 DE 69332104 D1 DE69332104 D1 DE 69332104D1 DE 69332104 T DE69332104 T DE 69332104T DE 69332104 T DE69332104 T DE 69332104T DE 69332104 D1 DE69332104 D1 DE 69332104D1
- Authority
- DE
- Germany
- Prior art keywords
- liquid crystal
- crystal display
- backlighting system
- backlighting
- display
- 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.)
- Expired - Fee Related
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
- G02F1/133604—Direct backlight with lamps
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
- H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
- H05B41/295—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices and specially adapted for lamps with preheating electrodes, e.g. for fluorescent lamps
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/36—Controlling
- H05B41/38—Controlling the intensity of light
- H05B41/39—Controlling the intensity of light continuously
- H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
- H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations
- H05B41/3927—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations by pulse width modulation
-
- 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
- G02F1/133626—Illuminating devices providing two modes of illumination, e.g. day-night
-
- 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
- G02F2203/00—Function characteristic
- G02F2203/68—Green display, e.g. recycling, reduction of harmful substances
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)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Liquid Crystal Display Device Control (AREA)
- Liquid Crystal (AREA)
- Liquid Crystal Substances (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/998,526 US5440324A (en) | 1992-12-30 | 1992-12-30 | Backlighting for liquid crystal display |
PCT/US1993/012675 WO1994016429A1 (en) | 1992-12-30 | 1993-12-30 | Backlighting for liquid crystal display |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69332104D1 true DE69332104D1 (de) | 2002-08-14 |
DE69332104T2 DE69332104T2 (de) | 2003-03-13 |
Family
ID=25545330
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69332104T Expired - Fee Related DE69332104T2 (de) | 1992-12-30 | 1993-12-30 | Hintergrundbeleuchtungssystem für flüssigkristallanzeige |
Country Status (6)
Country | Link |
---|---|
US (1) | US5440324A (de) |
EP (1) | EP0677201B1 (de) |
AU (1) | AU676712B2 (de) |
CA (1) | CA2153159C (de) |
DE (1) | DE69332104T2 (de) |
WO (1) | WO1994016429A1 (de) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5808410A (en) * | 1992-07-28 | 1998-09-15 | Philips Electronics North America Corporation | Flat panel light source for liquid crystal displays |
WO1994016292A1 (en) * | 1992-12-30 | 1994-07-21 | Avionic Displays Corporation | Self-contained multifunctional lcd flight indicator |
JP3027298B2 (ja) * | 1994-05-31 | 2000-03-27 | シャープ株式会社 | バックライト制御機能付き液晶表示装置 |
KR0137917B1 (ko) * | 1994-10-28 | 1998-05-15 | 김광호 | 액정표시소자의 후면광원 구동회로 |
GB2298075B (en) * | 1995-02-18 | 1998-09-09 | Ibm | Liquid crystal display |
KR0148053B1 (ko) * | 1995-05-12 | 1998-09-15 | 김광호 | 액정 표시 소자의 후면 광원 구동 제어 장치 및 그 방법 |
US6144359A (en) * | 1998-03-30 | 2000-11-07 | Rockwell Science Center | Liquid crystal displays utilizing polymer dispersed liquid crystal devices for enhanced performance and reduced power |
US6118415A (en) * | 1998-04-10 | 2000-09-12 | Eldec Corporation | Resonant square wave fluorescent tube driver |
US6590560B1 (en) * | 2000-02-23 | 2003-07-08 | Rockwell Collins, Inc. | Synchronized cockpit liquid crystal display lighting system |
KR100943715B1 (ko) * | 2003-04-21 | 2010-02-23 | 삼성전자주식회사 | 전원 공급 장치, 액정 표시 장치 및 그 구동 방법 |
US7642735B2 (en) * | 2006-09-05 | 2010-01-05 | Microchip Technology Incorporated | Using pulse density modulation for controlling dimmable electronic lighting ballasts |
US8193719B2 (en) * | 2006-09-05 | 2012-06-05 | Microchip Technology Incorporated | Using pulse density modulation for controlling dimmable electronic lighting ballasts |
US20100039366A1 (en) * | 2008-08-18 | 2010-02-18 | Rody Hardy | Backlight display and method for a vehicle |
KR101796718B1 (ko) | 2009-06-03 | 2017-11-10 | 매뉴팩처링 리소시스 인터내셔널 인코포레이티드 | Led 백라이트의 다이나믹 디밍 |
US9348174B2 (en) | 2013-03-14 | 2016-05-24 | Manufacturing Resources International, Inc. | Rigid LCD assembly |
US9690137B2 (en) | 2013-07-03 | 2017-06-27 | Manufacturing Resources International, Inc. | Airguide backlight assembly |
US10191212B2 (en) | 2013-12-02 | 2019-01-29 | Manufacturing Resources International, Inc. | Expandable light guide for backlight |
US10527276B2 (en) | 2014-04-17 | 2020-01-07 | Manufacturing Resources International, Inc. | Rod as a lens element for light emitting diodes |
US10649273B2 (en) | 2014-10-08 | 2020-05-12 | Manufacturing Resources International, Inc. | LED assembly for transparent liquid crystal display and static graphic |
US10261362B2 (en) | 2015-09-01 | 2019-04-16 | Manufacturing Resources International, Inc. | Optical sheet tensioner |
Family Cites Families (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1982003744A1 (en) * | 1981-04-15 | 1982-10-28 | Jucker Peter | Device for the supply of at least one fluorescent tube |
US4453200A (en) * | 1981-07-20 | 1984-06-05 | Rockwell International Corporation | Apparatus for lighting a passive display |
EP0104264A1 (de) * | 1982-09-24 | 1984-04-04 | White Castle System, Inc. | Regelbare Stromquelle für Gasentladungslampen und ähnliche Lampen |
JPS6095479A (ja) * | 1983-10-28 | 1985-05-28 | 株式会社日立製作所 | 液晶表示装置 |
FR2559334B1 (fr) * | 1984-02-03 | 1988-02-26 | Ssih Equipment Sa | Dispositif d'alimentation pour commander l'intensite lumineuse d'au moins une lampe a decharge et utilisation dudit dispositif |
US4945350A (en) * | 1985-07-09 | 1990-07-31 | Mitsubishi Denki Kabushiki Kaisha | Liquid crystal display unit |
GB2178581B (en) * | 1985-07-12 | 1989-07-19 | Canon Kk | Liquid crystal apparatus and driving method therefor |
JPS62226191A (ja) * | 1986-03-26 | 1987-10-05 | 株式会社デンソー | 螢光表示管駆動装置 |
US4799050A (en) * | 1986-10-23 | 1989-01-17 | Litton Systems Canada Limited | Full color liquid crystal display |
US4920302A (en) * | 1987-01-27 | 1990-04-24 | Zenith Electronics Corporation | Fluorescent lamp power supply |
US4748546A (en) * | 1987-02-02 | 1988-05-31 | Allied-Signal Inc. | Fluorescent backlighting unit |
DE3806421A1 (de) * | 1987-03-04 | 1988-11-24 | Citizen Watch Co Ltd | Beleuchtungsvorrichtung fuer ein fluessigkristallanzeigegeraet |
US5030943A (en) * | 1988-11-23 | 1991-07-09 | Poqet Computer Corp. | Portable electroluminescent back light |
US4998045A (en) * | 1988-12-06 | 1991-03-05 | Honeywell Inc. | Fluorescent lamp dimmer |
US5041823A (en) * | 1988-12-29 | 1991-08-20 | Honeywell Inc. | Flicker-free liquid crystal display driver system |
US4974122A (en) * | 1989-03-28 | 1990-11-27 | Rockwell International Corporation | Compact LCD luminaire |
US5078476A (en) * | 1989-06-30 | 1992-01-07 | Goldstar Co. Ltd. | Automatic backlight on/off control apparatus for liquid crystal display television |
FR2649277B1 (fr) * | 1989-06-30 | 1996-05-31 | Thomson Csf | Procede et dispositif de gradation de lumiere pour lampe fluorescente d'eclairage arriere d'ecran a cristaux liquides |
JP2560436Y2 (ja) * | 1989-08-23 | 1998-01-21 | 株式会社東海理化電機製作所 | モータ駆動回路 |
JPH03219212A (ja) * | 1990-01-25 | 1991-09-26 | Toshiba Lighting & Technol Corp | 液晶表示装置 |
US5030887A (en) * | 1990-01-29 | 1991-07-09 | Guisinger John E | High frequency fluorescent lamp exciter |
US5128783A (en) * | 1990-01-31 | 1992-07-07 | Ois Optical Imaging Systems, Inc. | Diffusing/collimating lens array for a liquid crystal display |
JP2693849B2 (ja) * | 1990-04-24 | 1997-12-24 | シャープ株式会社 | 平面光源装置 |
US5130907A (en) * | 1990-07-11 | 1992-07-14 | Curtis Manufacturing Company, Inc. | Light apparatus for use with a compact computer video screen |
JPH0482485A (ja) * | 1990-07-25 | 1992-03-16 | Sony Corp | 液晶用バックライト |
EP0560887B1 (de) * | 1990-12-03 | 1995-01-18 | AlliedSignal Inc. | Steuerungsschaltung mit weitem einstellungsbereich für eine gasentladungslampe |
US5143433A (en) * | 1991-11-01 | 1992-09-01 | Litton Systems Canada Limited | Night vision backlighting system for liquid crystal displays |
-
1992
- 1992-12-30 US US07/998,526 patent/US5440324A/en not_active Expired - Lifetime
-
1993
- 1993-12-30 EP EP94905565A patent/EP0677201B1/de not_active Expired - Lifetime
- 1993-12-30 AU AU59628/94A patent/AU676712B2/en not_active Expired
- 1993-12-30 WO PCT/US1993/012675 patent/WO1994016429A1/en active IP Right Grant
- 1993-12-30 DE DE69332104T patent/DE69332104T2/de not_active Expired - Fee Related
- 1993-12-30 CA CA002153159A patent/CA2153159C/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
WO1994016429A1 (en) | 1994-07-21 |
US5440324A (en) | 1995-08-08 |
EP0677201A4 (de) | 1996-11-06 |
CA2153159C (en) | 1999-07-20 |
AU5962894A (en) | 1994-08-15 |
AU676712B2 (en) | 1997-03-20 |
DE69332104T2 (de) | 2003-03-13 |
CA2153159A1 (en) | 1994-07-21 |
EP0677201A1 (de) | 1995-10-18 |
EP0677201B1 (de) | 2002-07-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69224874D1 (de) | Hintergrundbeleuchtungssystem für elektrooptische Anzeigen | |
DE69313894D1 (de) | Rückbeleuchtung für eine Flüssigkristallanzeige | |
DE69330337D1 (de) | Flüssigkristallanzeige | |
DE69324314D1 (de) | Flüssigkristallanzeige | |
DE69313496D1 (de) | Flüssigkristall-Anzeigetafel | |
DE59605917D1 (de) | Elektrooptische flüssigkristallanzeige | |
DE69215332D1 (de) | Kompensator für Flüssigkristallanzeige | |
DE69419653D1 (de) | Optischer Kompensator für Flüssigkristallanzeige | |
DE69423552D1 (de) | Flüssigkristallanzeige | |
DE69427882D1 (de) | Flüssigkristallanzeige | |
DE69324042D1 (de) | Reflektive flüssigkeitskristallanzeige für overhead-projektions system | |
DE69332104D1 (de) | Hintergrundbeleuchtungssystem für flüssigkristallanzeige | |
DE69228929D1 (de) | Flüssigkristallanzeige | |
DE69416441D1 (de) | Ansteuervorrichtung für Flüssigkristall-Anzeige | |
DE69405437D1 (de) | Flüssigkristallanzeige | |
DE69311950D1 (de) | Flüssigkristallanzeige | |
DE69318748D1 (de) | Flüssigkristallanzeige | |
DE69314139D1 (de) | Steuerschaltung für Flüssigkristallanzeigevorrichtung | |
DE69529608D1 (de) | Kathode für plasmaadressierte flüssigkristallanzeigevorrichtung | |
DE59606846D1 (de) | Elektrooptische Flüssigkristallanzeige | |
DE69332622D1 (de) | Ansteuerverfahren für flüssigkristallanzeige | |
DE69318434D1 (de) | Flüssigkristallanzeige | |
KR970025086U (ko) | 액정 디스플레이용 백라이트 | |
DE69516353D1 (de) | Flüssigkristallanzeigetafel | |
DE69604723D1 (de) | Metallische Haltevorrichtung für Flüssigkristallanzeigetafel |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |