JPS5275198A - Illuminator for liquid crystal display unit - Google Patents

Illuminator for liquid crystal display unit

Info

Publication number
JPS5275198A
JPS5275198A JP51130011A JP13001176A JPS5275198A JP S5275198 A JPS5275198 A JP S5275198A JP 51130011 A JP51130011 A JP 51130011A JP 13001176 A JP13001176 A JP 13001176A JP S5275198 A JPS5275198 A JP S5275198A
Authority
JP
Japan
Prior art keywords
illuminator
liquid crystal
display unit
crystal display
liquid
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.)
Pending
Application number
JP51130011A
Other languages
Japanese (ja)
Inventor
Jieemusu Shiefuaa Terii
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.)
BBC Brown Boveri AG Switzerland
BBC Brown Boveri France SA
Original Assignee
BBC Brown Boveri AG Switzerland
BBC Brown Boveri France SA
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 BBC Brown Boveri AG Switzerland, BBC Brown Boveri France SA filed Critical BBC Brown Boveri AG Switzerland
Publication of JPS5275198A publication Critical patent/JPS5275198A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • G02B6/0028—Light guide, e.g. taper
    • 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
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0045—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide
    • G02B6/0046—Tapered light guide, e.g. wedge-shaped light guide
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • 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
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0018—Redirecting means on the surface of the light guide
    • 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
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
    • 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
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
    • G02B6/0021—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces for housing at least a part of the light source, e.g. by forming holes or recesses

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
JP51130011A 1975-10-28 1976-10-28 Illuminator for liquid crystal display unit Pending JPS5275198A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1392175A CH591705A5 (en) 1975-10-28 1975-10-28

Publications (1)

Publication Number Publication Date
JPS5275198A true JPS5275198A (en) 1977-06-23

Family

ID=4396486

Family Applications (1)

Application Number Title Priority Date Filing Date
JP51130011A Pending JPS5275198A (en) 1975-10-28 1976-10-28 Illuminator for liquid crystal display unit

Country Status (4)

Country Link
JP (1) JPS5275198A (en)
AT (1) AT345910B (en)
CH (1) CH591705A5 (en)
DE (1) DE2552278A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5414684U (en) * 1977-07-05 1979-01-30
JPS57144580A (en) * 1981-03-03 1982-09-07 Mitsubishi Electric Corp Display unit with lighting
KR19980080215A (en) * 1997-03-18 1998-11-25 야스카와 히데아키 Lighting device, liquid crystal display device and electronic device
JP2009503793A (en) * 2005-07-28 2009-01-29 ライト プレスクリプションズ イノベーターズ エルエルシー Etendue-conserving illumination optics for backlights and frontlights

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0055317B1 (en) * 1980-12-31 1985-09-25 International Business Machines Corporation Electrochromic display module and reflective projection system therefor
DE3102626A1 (en) * 1981-01-27 1982-08-19 Siemens AG, 1000 Berlin und 8000 München "PASSIVE ELECTROOPTICAL DISPLAY DEVICE"
DE3207871A1 (en) * 1982-03-05 1983-09-15 Robert Bosch Gmbh, 7000 Stuttgart DISPLAY DEVICE, IN PARTICULAR FOR MOTOR VEHICLES
NO159899C (en) * 1986-03-25 1989-02-15 Kjell Hansen PICTURE VIEW SCREEN AND / OR RECORDING.
US4989956A (en) * 1989-01-04 1991-02-05 Hughes Aircraft Company Visual display device with fluorescent dye-doped edge-illuminating emitter panel
DE3919925A1 (en) * 1989-06-19 1990-12-20 Inotec Gmbh Ges Fuer Innovativ ILLUMINATED, DISPLAY UNIT, PARTICULARLY HOUSE NUMBER, TRAFFIC SIGN, ADVERTISER
JPH0365982A (en) * 1989-08-03 1991-03-20 Pioneer Electron Corp Display board illuminating device for display device
GB9026151D0 (en) * 1990-11-30 1991-01-16 Emi Plc Thorn Display device
DE4105547A1 (en) * 1991-02-22 1992-08-27 Hella Kg Hueck & Co Flat illuminated display esp. for symbols and lettering - has gap between translucent lettered cover and light conductive component cross=sectioned for diffuse reflection from rear face
DE19636459A1 (en) * 1996-09-07 1998-03-12 Telefunken Microelectron Illuminated display arrangement
DE19925363A1 (en) * 1999-06-02 2000-12-07 Hella Kg Hueck & Co Arrangement for directed output or introduction of light into light conductor, has at least part of transition surface between parallel boundaries with convex prismatic or convex cross-section
WO2008008994A2 (en) 2006-07-14 2008-01-17 Light Prescriptions Innovators, Llc Brightness-enhancing film
US20080260329A1 (en) * 2007-04-20 2008-10-23 3M Innovative Properties Company Lightguides having curved light injectors

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5414684U (en) * 1977-07-05 1979-01-30
JPS57144580A (en) * 1981-03-03 1982-09-07 Mitsubishi Electric Corp Display unit with lighting
KR19980080215A (en) * 1997-03-18 1998-11-25 야스카와 히데아키 Lighting device, liquid crystal display device and electronic device
JP2009503793A (en) * 2005-07-28 2009-01-29 ライト プレスクリプションズ イノベーターズ エルエルシー Etendue-conserving illumination optics for backlights and frontlights

Also Published As

Publication number Publication date
CH591705A5 (en) 1977-09-30
DE2552278A1 (en) 1977-05-05
AT345910B (en) 1978-10-10
ATA798276A (en) 1978-02-15

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