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GB2247536B - A liquid crystal display - Google Patents

A liquid crystal display

Info

Publication number
GB2247536B
GB2247536B GB9018759A GB9018759A GB2247536B GB 2247536 B GB2247536 B GB 2247536B GB 9018759 A GB9018759 A GB 9018759A GB 9018759 A GB9018759 A GB 9018759A GB 2247536 B GB2247536 B GB 2247536B
Authority
GB
United Kingdom
Prior art keywords
liquid crystal
crystal display
display
liquid
crystal
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
GB9018759A
Other versions
GB9018759D0 (en
GB2247536A (en
Inventor
Richard Paul Russell
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.)
Navico UK Ltd
Original Assignee
Brookes and Gatehouse Ltd
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 Brookes and Gatehouse Ltd filed Critical Brookes and Gatehouse Ltd
Priority to GB9018759A priority Critical patent/GB2247536B/en
Publication of GB9018759D0 publication Critical patent/GB9018759D0/en
Publication of GB2247536A publication Critical patent/GB2247536A/en
Application granted granted Critical
Publication of GB2247536B publication Critical patent/GB2247536B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G02B6/0033—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
    • G02B6/0048—Tapered light guide, e.g. wedge-shaped light guide with stepwise 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
    • G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened surfaces

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
GB9018759A 1990-08-28 1990-08-28 A liquid crystal display Expired - Fee Related GB2247536B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9018759A GB2247536B (en) 1990-08-28 1990-08-28 A liquid crystal display

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9018759A GB2247536B (en) 1990-08-28 1990-08-28 A liquid crystal display

Publications (3)

Publication Number Publication Date
GB9018759D0 GB9018759D0 (en) 1990-10-10
GB2247536A GB2247536A (en) 1992-03-04
GB2247536B true GB2247536B (en) 1994-09-07

Family

ID=10681279

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9018759A Expired - Fee Related GB2247536B (en) 1990-08-28 1990-08-28 A liquid crystal display

Country Status (1)

Country Link
GB (1) GB2247536B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR940003349Y1 (en) * 1991-08-24 1994-05-23 삼성전관 주식회사 Device for lighting liquid crystal display devices

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1092969A (en) * 1965-11-05 1967-11-29 American Tobacco Co Improvements in inspection device for composite cigarette filter rods
GB1390855A (en) * 1971-11-15 1975-04-16 Bucode Optical devices
GB1543327A (en) * 1975-02-26 1979-04-04 Sick Optik Elektronik Erwin Optical device for producing a light curtain
US4172631A (en) * 1975-01-07 1979-10-30 Izon Corporation Parallel optical fiber and strip illuminating arrays
US4576436A (en) * 1983-01-31 1986-03-18 Maurice Daniel Light distribution and collection assemblies and methods
US4743410A (en) * 1985-03-29 1988-05-10 Siemens Aktiengesellschaft Method for manufacturing a flat illumination unit
US4883333A (en) * 1987-10-13 1989-11-28 Yanez Serge J Integrated, solid, optical device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1092969A (en) * 1965-11-05 1967-11-29 American Tobacco Co Improvements in inspection device for composite cigarette filter rods
GB1390855A (en) * 1971-11-15 1975-04-16 Bucode Optical devices
US4172631A (en) * 1975-01-07 1979-10-30 Izon Corporation Parallel optical fiber and strip illuminating arrays
GB1543327A (en) * 1975-02-26 1979-04-04 Sick Optik Elektronik Erwin Optical device for producing a light curtain
US4576436A (en) * 1983-01-31 1986-03-18 Maurice Daniel Light distribution and collection assemblies and methods
US4743410A (en) * 1985-03-29 1988-05-10 Siemens Aktiengesellschaft Method for manufacturing a flat illumination unit
US4883333A (en) * 1987-10-13 1989-11-28 Yanez Serge J Integrated, solid, optical device

Also Published As

Publication number Publication date
GB9018759D0 (en) 1990-10-10
GB2247536A (en) 1992-03-04

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19970828