IT215249Z2 - DEVICE FOR ILLUMINATING PASSIVE INFORMATION INDICATORS, PREFERABLY LCD. - Google Patents

DEVICE FOR ILLUMINATING PASSIVE INFORMATION INDICATORS, PREFERABLY LCD.

Info

Publication number
IT215249Z2
IT215249Z2 IT2212088U IT2212088U IT215249Z2 IT 215249 Z2 IT215249 Z2 IT 215249Z2 IT 2212088 U IT2212088 U IT 2212088U IT 2212088 U IT2212088 U IT 2212088U IT 215249 Z2 IT215249 Z2 IT 215249Z2
Authority
IT
Italy
Prior art keywords
passive information
information indicators
preferably lcd
illuminating
illuminating passive
Prior art date
Application number
IT2212088U
Other languages
Italian (it)
Other versions
IT8822120V0 (en
Original Assignee
Bosch Gmbh Robert
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 Bosch Gmbh Robert filed Critical Bosch Gmbh Robert
Publication of IT8822120V0 publication Critical patent/IT8822120V0/en
Application granted granted Critical
Publication of IT215249Z2 publication Critical patent/IT215249Z2/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

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)
IT2212088U 1987-11-12 1988-11-09 DEVICE FOR ILLUMINATING PASSIVE INFORMATION INDICATORS, PREFERABLY LCD. IT215249Z2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19873738414 DE3738414A1 (en) 1987-11-12 1987-11-12 Device for illuminating passive information displays, preferably LCDs

Publications (2)

Publication Number Publication Date
IT8822120V0 IT8822120V0 (en) 1988-11-09
IT215249Z2 true IT215249Z2 (en) 1990-09-11

Family

ID=6340336

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2212088U IT215249Z2 (en) 1987-11-12 1988-11-09 DEVICE FOR ILLUMINATING PASSIVE INFORMATION INDICATORS, PREFERABLY LCD.

Country Status (3)

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

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4131993A1 (en) * 1991-09-26 1993-04-01 Licentia Gmbh LIQUID CRYSTAL DISPLAY DEVICE
EA000018B1 (en) * 1995-08-16 1997-12-30 Касио Компьютер Ко., Лтд. Electronic appliance equipped with light emitting apparatus
DE19908021C2 (en) * 1999-02-25 2001-03-01 Grundig Ag Liquid crystal display with integrated lighting
DE19916747A1 (en) * 1999-04-13 2000-10-19 Mannesmann Vdo Ag Self-illuminating LCD display device
DE19925498C2 (en) * 1999-06-04 2001-11-15 Ernst Lueder Liquid crystal display

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1086906B (en) * 1955-06-27 1960-08-11 Gen Motors Corp Display device, in particular for dashboards in motor vehicles
JPS4845187A (en) * 1971-10-11 1973-06-28
DE2221441A1 (en) * 1972-05-02 1973-11-15 Bernt Von Grabe OPTOELECTRONIC SIGN GENERATOR
DE2320142C3 (en) * 1973-04-19 1980-08-14 Officine Galileo S.P.A., Florenz (Italien) Dashboard with device for lighting
DE2355134C2 (en) * 1973-11-05 1983-04-07 Vdo Adolf Schindling Ag, 6000 Frankfurt Display device
DE2555061A1 (en) * 1975-12-06 1977-06-08 Licentia Gmbh Electroluminescent capacitor with electroluminescent layer - has photodielectric layer between transparent electrodes
CA1074282A (en) * 1975-12-09 1980-03-25 Becky J. Schroeder Electroluminescent backing sheet for reading and writing in the dark
DE2706375C3 (en) * 1977-02-15 1982-08-26 Siemens AG, 1000 Berlin und 8000 München Display arrangement with a light valve device, in particular a liquid crystal cell
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 (en) * 1980-10-02 1982-04-29 Philips Patentverwaltung Gmbh, 2000 Hamburg Electro-optical display - uses e.c.l. cell behind l.c.d. for illumination
JPS5810481U (en) * 1981-07-10 1983-01-22 シャープ株式会社 liquid crystal display device
DE3207871A1 (en) * 1982-03-05 1983-09-15 Robert Bosch Gmbh, 7000 Stuttgart DISPLAY DEVICE, IN PARTICULAR FOR MOTOR VEHICLES
DE3314323A1 (en) * 1983-04-20 1984-10-31 Robert Bosch Gmbh, 7000 Stuttgart Device for illuminating passive displays
US4500173A (en) * 1983-05-02 1985-02-19 Timex Corporation Electroluminescent lamp for liquid crystal display
DE3331724A1 (en) * 1983-09-02 1985-03-21 Robert Bosch Gmbh, 7000 Stuttgart ARRANGEMENT FOR LIGHTING PASSIVE INDICATORS
JPS6149379U (en) * 1984-09-06 1986-04-02

Also Published As

Publication number Publication date
FR2623319B1 (en) 1993-10-15
IT8822120V0 (en) 1988-11-09
FR2623319A1 (en) 1989-05-19
DE3738414A1 (en) 1989-05-24

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