FR2623319B1 - Dispositif pour eclairer des dispositifs d'affichage passifs d'informations notamment des dispositifs d'affichage a cristaux liquides - Google Patents

Dispositif pour eclairer des dispositifs d'affichage passifs d'informations notamment des dispositifs d'affichage a cristaux liquides

Info

Publication number
FR2623319B1
FR2623319B1 FR8810183A FR8810183A FR2623319B1 FR 2623319 B1 FR2623319 B1 FR 2623319B1 FR 8810183 A FR8810183 A FR 8810183A FR 8810183 A FR8810183 A FR 8810183A FR 2623319 B1 FR2623319 B1 FR 2623319B1
Authority
FR
France
Prior art keywords
display devices
lighting
liquid crystal
particular liquid
crystal 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
Application number
FR8810183A
Other languages
English (en)
Other versions
FR2623319A1 (fr
Inventor
Knoll Peter
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of FR2623319A1 publication Critical patent/FR2623319A1/fr
Application granted granted Critical
Publication of FR2623319B1 publication Critical patent/FR2623319B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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

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)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Instrument Panels (AREA)
FR8810183A 1987-11-12 1988-07-28 Dispositif pour eclairer des dispositifs d'affichage passifs d'informations notamment des dispositifs d'affichage a cristaux liquides Expired - Fee Related FR2623319B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19873738414 DE3738414A1 (de) 1987-11-12 1987-11-12 Vorrichtung zur ausleuchtung von passiven informationsanzeigen, vorzugsweise lcd's

Publications (2)

Publication Number Publication Date
FR2623319A1 FR2623319A1 (fr) 1989-05-19
FR2623319B1 true FR2623319B1 (fr) 1993-10-15

Family

ID=6340336

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8810183A Expired - Fee Related FR2623319B1 (fr) 1987-11-12 1988-07-28 Dispositif pour eclairer des dispositifs d'affichage passifs d'informations notamment des dispositifs d'affichage a cristaux liquides

Country Status (3)

Country Link
DE (1) DE3738414A1 (fr)
FR (1) FR2623319B1 (fr)
IT (1) IT215249Z2 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4131993A1 (de) * 1991-09-26 1993-04-01 Licentia Gmbh Fluessigkristall-anzeigevorrichtung
EA000018B1 (ru) * 1995-08-16 1997-12-30 Касио Компьютер Ко., Лтд. Электронный бытовой прибор
DE19908021C2 (de) * 1999-02-25 2001-03-01 Grundig Ag Flüssigkristallanzeige mit integrierter Beleuchtung
DE19916747A1 (de) * 1999-04-13 2000-10-19 Mannesmann Vdo Ag Selbstleuchtende LCD-Anzeigevorrichtung
DE19925498C2 (de) * 1999-06-04 2001-11-15 Ernst Lueder Flüssigkristallanzeige

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1086906B (de) * 1955-06-27 1960-08-11 Gen Motors Corp Anzeigevorrichtung, insbesondere fuer Armaturenbretter in Kraftfahrzeugen
JPS4845187A (fr) * 1971-10-11 1973-06-28
DE2221441A1 (de) * 1972-05-02 1973-11-15 Bernt Von Grabe Optoelektronischer zeichengenerator
DE2320142C3 (de) * 1973-04-19 1980-08-14 Officine Galileo S.P.A., Florenz (Italien) Armaturenbrett mit Vorrichtung zur Beleuchtung
DE2355134C2 (de) * 1973-11-05 1983-04-07 Vdo Adolf Schindling Ag, 6000 Frankfurt Anzeigevorrichtung
DE2555061A1 (de) * 1975-12-06 1977-06-08 Licentia Gmbh Elektrolumineszenz-kondensator
CA1074282A (fr) * 1975-12-09 1980-03-25 Becky J. Schroeder Panneau support electroluminescent permettant de lire et d'ecrire dans l'obscurite
DE2706375C3 (de) * 1977-02-15 1982-08-26 Siemens AG, 1000 Berlin und 8000 München Anzeigeanordnung mit einer Lichtventilvorrichtung, insbesondere einer Flüssigkristallzelle
US4221112A (en) * 1977-11-16 1980-09-09 Citizen Watch Company Limited Electronic watch with illumination device
US4310871A (en) * 1978-11-06 1982-01-12 Nissan Motor Co., Ltd. Illuminating device for instrument
US4238793A (en) * 1979-03-29 1980-12-09 Timex Corporation Electroluminescent backlight for electrooptic displays
DE3037224A1 (de) * 1980-10-02 1982-04-29 Philips Patentverwaltung Gmbh, 2000 Hamburg Elektrooptische anzeigeeinheit
JPS5810481U (ja) * 1981-07-10 1983-01-22 シャープ株式会社 液晶表示装置
DE3207871A1 (de) * 1982-03-05 1983-09-15 Robert Bosch Gmbh, 7000 Stuttgart Anzeigevorrichtung, insbesondere fuer kraftfahrzeuge
DE3314323A1 (de) * 1983-04-20 1984-10-31 Robert Bosch Gmbh, 7000 Stuttgart Vorrichtung zur ausleuchtung passiver anzeigen
US4500173A (en) * 1983-05-02 1985-02-19 Timex Corporation Electroluminescent lamp for liquid crystal display
DE3331724A1 (de) * 1983-09-02 1985-03-21 Robert Bosch Gmbh, 7000 Stuttgart Anordnung zur beleuchtung passiver anzeigen
JPS6149379U (fr) * 1984-09-06 1986-04-02

Also Published As

Publication number Publication date
IT215249Z2 (it) 1990-09-11
IT8822120V0 (it) 1988-11-09
DE3738414A1 (de) 1989-05-24
FR2623319A1 (fr) 1989-05-19

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Legal Events

Date Code Title Description
ST Notification of lapse