DE69033627T2 - Prismatische Beleuchtungseinrichtung für flachen Bildschirm - Google Patents

Prismatische Beleuchtungseinrichtung für flachen Bildschirm

Info

Publication number
DE69033627T2
DE69033627T2 DE69033627T DE69033627T DE69033627T2 DE 69033627 T2 DE69033627 T2 DE 69033627T2 DE 69033627 T DE69033627 T DE 69033627T DE 69033627 T DE69033627 T DE 69033627T DE 69033627 T2 DE69033627 T2 DE 69033627T2
Authority
DE
Germany
Prior art keywords
lighting device
flat screen
prismatic lighting
prismatic
screen
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
Application number
DE69033627T
Other languages
English (en)
Other versions
DE69033627D1 (de
Inventor
John Lawrence Henkes
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.)
General Electric Co
Original Assignee
General Electric 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 General Electric Co filed Critical General Electric Co
Publication of DE69033627D1 publication Critical patent/DE69033627D1/de
Application granted granted Critical
Publication of DE69033627T2 publication Critical patent/DE69033627T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/14—Arrangements of reflectors therein
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • 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
    • 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
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal (AREA)
  • Optical Elements Other Than Lenses (AREA)
DE69033627T 1989-06-08 1990-06-07 Prismatische Beleuchtungseinrichtung für flachen Bildschirm Expired - Fee Related DE69033627T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/363,645 US4992916A (en) 1989-06-08 1989-06-08 Prismatic illuminator for flat panel display

Publications (2)

Publication Number Publication Date
DE69033627D1 DE69033627D1 (de) 2000-10-19
DE69033627T2 true DE69033627T2 (de) 2001-05-03

Family

ID=23431091

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69033627T Expired - Fee Related DE69033627T2 (de) 1989-06-08 1990-06-07 Prismatische Beleuchtungseinrichtung für flachen Bildschirm

Country Status (5)

Country Link
US (1) US4992916A (de)
EP (2) EP0987672A1 (de)
JP (1) JP2954283B2 (de)
DE (1) DE69033627T2 (de)
SG (1) SG44505A1 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04242002A (ja) * 1991-01-17 1992-08-28 Jiro Sugimoto 照明器付属装置および照明装置
US5247491A (en) * 1991-07-29 1993-09-21 Zdzislaw Kwiatkowski Device for projecting a rainbow-like spectral display in the form of a symbol design, time indicating display and the like
US5303322A (en) * 1992-03-23 1994-04-12 Nioptics Corporation Tapered multilayer luminaire devices
US6002829A (en) * 1992-03-23 1999-12-14 Minnesota Mining And Manufacturing Company Luminaire device
US5528720A (en) * 1992-03-23 1996-06-18 Minnesota Mining And Manufacturing Co. Tapered multilayer luminaire devices
US5526146A (en) * 1993-06-24 1996-06-11 International Business Machines Corporation Back-lighting system for transmissive display
US5669700A (en) 1996-02-16 1997-09-23 Exhibit-Group/Giltspur, Inc. Light intensity equalizing element for lighted display panel
DE19624768A1 (de) * 1996-06-21 1998-01-08 Imab Stiftung Kristallreflektor
US6179443B1 (en) * 1998-06-30 2001-01-30 Commercial Refrigerator Door Company, Inc. Fluorescent lamp lens assembly
JP2002150819A (ja) * 2000-11-09 2002-05-24 Harison Toshiba Lighting Corp 放電ランプ装置および照明装置
US6942366B2 (en) * 2003-07-23 2005-09-13 Everbrite, Llc Sign illumination light fixture
KR101035918B1 (ko) * 2004-12-08 2011-05-23 엘지디스플레이 주식회사 직하형 백라이트
US20070171677A1 (en) * 2005-02-10 2007-07-26 Tadashi Yano Backlight device for liquid crystal dislay and method for manufacturing the same
ES2237349B1 (es) * 2005-04-08 2006-11-01 Vanlux, S.A. Luminaria de pared.
US9569912B2 (en) 2008-06-26 2017-02-14 Shopatm Bv (Sarl) Article storage and retrieval apparatus and vending machine

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1130601A (en) * 1965-04-30 1968-10-16 Calorific Appliances Ltd Illuminated display apparatus
US3761704A (en) * 1972-01-06 1973-09-25 Matusushita Electric Ind Co Lt Dial illuminating device
JPS53104197A (en) * 1977-02-23 1978-09-11 Stanley Electric Co Ltd Miniature illuminator
GB1605112A (en) * 1977-11-08 1981-12-16 Challenger Eng Ltd Underwater lighting
DE2827573C2 (de) * 1978-06-23 1983-02-03 Blaupunkt-Werke Gmbh, 3200 Hildesheim Großflächige Lichtquelle
JPS57168256U (de) * 1981-04-16 1982-10-23
DE3142267A1 (de) * 1981-10-24 1983-05-05 Walter 5208 Eitorf Kratz Reflektor fuer eine lineare lichtquelle
JPS58123478U (ja) * 1982-02-15 1983-08-22 日産自動車株式会社 受光型表示装置の照明装置
US4404619A (en) * 1982-02-18 1983-09-13 Ferguson Bruce A Illuminator box
US4562517A (en) * 1983-02-28 1985-12-31 Maximum Technology Reflector systems for lighting fixtures and method of installation
SE8302959L (sv) * 1983-05-26 1984-11-27 Ulf Henke Anordning vid ett med visningsyta forsett ljuspaverkbart visningsarrangemang jemte framstellningsforfarande for sagda anordning
JPS60252324A (ja) * 1984-05-28 1985-12-13 Nippon Denso Co Ltd 車両用液晶表示装置
DE3573649D1 (en) * 1984-07-02 1989-11-16 Mitsubishi Rayon Co Light diffuser
JPS6310102A (ja) * 1986-07-01 1988-01-16 Matsushita Electric Ind Co Ltd 透過形画像表示装置の照明装置
JPS6390214U (de) * 1986-12-03 1988-06-11
BE906112A (fr) * 1986-12-30 1987-06-30 Benmouna Abdennasser Caisson lumineux.
JP2573282B2 (ja) * 1987-03-04 1997-01-22 シチズン時計株式会社 液晶表示装置の照明装置
DE3806421A1 (de) * 1987-03-04 1988-11-24 Citizen Watch Co Ltd Beleuchtungsvorrichtung fuer ein fluessigkristallanzeigegeraet
JPH0173879U (de) * 1987-11-02 1989-05-18
JPH0192682U (de) * 1987-12-14 1989-06-16
JPH01146216U (de) * 1988-03-29 1989-10-09

Also Published As

Publication number Publication date
EP0402146A2 (de) 1990-12-12
EP0402146B1 (de) 2000-09-13
SG44505A1 (en) 1997-12-19
EP0987672A1 (de) 2000-03-22
US4992916A (en) 1991-02-12
DE69033627D1 (de) 2000-10-19
EP0402146A3 (de) 1991-03-06
JP2954283B2 (ja) 1999-09-27
JPH0363688A (ja) 1991-03-19

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)
8328 Change in the person/name/address of the agent

Representative=s name: ROEGER UND KOLLEGEN, 73728 ESSLINGEN

8339 Ceased/non-payment of the annual fee