GB9804131D0 - Enhanced back light structure - Google Patents

Enhanced back light structure

Info

Publication number
GB9804131D0
GB9804131D0 GBGB9804131.2A GB9804131A GB9804131D0 GB 9804131 D0 GB9804131 D0 GB 9804131D0 GB 9804131 A GB9804131 A GB 9804131A GB 9804131 D0 GB9804131 D0 GB 9804131D0
Authority
GB
United Kingdom
Prior art keywords
back light
light structure
enhanced back
enhanced
light
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.)
Withdrawn
Application number
GBGB9804131.2A
Other versions
GB2334806A (en
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.)
Lite On Electronics Inc
Original Assignee
Lite On Electronics Inc
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 Lite On Electronics Inc filed Critical Lite On Electronics Inc
Priority to GB9804131A priority Critical patent/GB2334806A/en
Publication of GB9804131D0 publication Critical patent/GB9804131D0/en
Publication of GB2334806A publication Critical patent/GB2334806A/en
Withdrawn legal-status Critical Current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
    • G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened 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
    • G02B6/0033—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
    • G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide
    • 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
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • 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)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Liquid Crystal (AREA)
  • Planar Illumination Modules (AREA)
GB9804131A 1998-02-26 1998-02-26 Enhanced back light structure Withdrawn GB2334806A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9804131A GB2334806A (en) 1998-02-26 1998-02-26 Enhanced back light structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9804131A GB2334806A (en) 1998-02-26 1998-02-26 Enhanced back light structure

Publications (2)

Publication Number Publication Date
GB9804131D0 true GB9804131D0 (en) 1998-04-22
GB2334806A GB2334806A (en) 1999-09-01

Family

ID=10827665

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9804131A Withdrawn GB2334806A (en) 1998-02-26 1998-02-26 Enhanced back light structure

Country Status (1)

Country Link
GB (1) GB2334806A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001060409A (en) * 1999-08-23 2001-03-06 Minebea Co Ltd Sheet-like lighting system
GB2383406B (en) * 2002-01-22 2006-02-15 Pulsar Light Of Cambridge Ltd Lighting panel
CN100376948C (en) * 2003-09-13 2008-03-26 鸿富锦精密工业（深圳）有限公司 Light guide plate
CN100395610C (en) * 2003-12-11 2008-06-18 鸿富锦精密工业（深圳）有限公司 Light guiding plate
AT13334U1 (en) * 2012-06-13 2013-10-15 Tiedemann Roman lightboard
CN102878484A (en) * 2012-09-04 2013-01-16 深圳市华星光电技术有限公司 Backlight module and liquid crystal display

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69122075T2 (en) * 1991-01-16 1997-04-03 Lumitex Inc Thin plate lamp
DE69220870T2 (en) * 1991-08-22 1998-02-05 Tosoh Corp Rear lighting device
JP2692025B2 (en) * 1992-01-24 1997-12-17 スタンレー電気株式会社 Planar light emitter device
JP3006306B2 (en) * 1992-09-16 2000-02-07 インターナショナル・ビジネス・マシーンズ・コーポレイション Optical film and liquid crystal display device using the optical film
JPH0695112A (en) * 1992-09-16 1994-04-08 Hitachi Ltd Prism plate and information display device formed by using this plate
US5479275A (en) * 1993-12-03 1995-12-26 Ois Optical Imaging Systems, Inc. Backlit liquid crystal display with integral collimating, refracting, and reflecting means which refracts and collimates light from a first light source and reflects light from a second light source
US5600455A (en) * 1994-08-31 1997-02-04 Enplas Corporation Prismatic member with coarsened portions or triangular prismatic and semi-circular prismatic members arranged on a flat light emitting surface
US5506929A (en) * 1994-10-19 1996-04-09 Clio Technologies, Inc. Light expanding system for producing a linear or planar light beam from a point-like light source

Also Published As

Publication number Publication date
GB2334806A (en) 1999-09-01

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)