[go: up one dir, main page]

GB2423183A - Improvements in and relating to backlit displays - Google Patents

Improvements in and relating to backlit displays Download PDF

Info

Publication number
GB2423183A
GB2423183A GB0607613A GB0607613A GB2423183A GB 2423183 A GB2423183 A GB 2423183A GB 0607613 A GB0607613 A GB 0607613A GB 0607613 A GB0607613 A GB 0607613A GB 2423183 A GB2423183 A GB 2423183A
Authority
GB
United Kingdom
Prior art keywords
light
light guide
guide
relating
control features
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Withdrawn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
GB0607613A
Other versions
GB0607613D0 (en
Inventor
Owen Michael Gerard O'neill
Howell John Griffiths
Christopher John Ferrari
Michael John Hanney
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.)
AMBISOL SIGNAGE AND LIGHTING L
Original Assignee
AMBISOL SIGNAGE AND LIGHTING L
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 AMBISOL SIGNAGE AND LIGHTING L filed Critical AMBISOL SIGNAGE AND LIGHTING L
Publication of GB0607613D0 publication Critical patent/GB0607613D0/en
Publication of GB2423183A publication Critical patent/GB2423183A/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Withdrawn legal-status Critical Current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
    • G02B6/0013—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
    • G02B6/003—Lens or lenticular sheet or layer
    • 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
    • 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
    • G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
    • G02B6/0043—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided 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
    • G02B6/0066—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 characterised by the light source being coupled to the light guide
    • G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Planar Illumination Modules (AREA)
  • Light Guides In General And Applications Therefor (AREA)

Abstract

A light guide (30) for use with a backlit display (100), and a method of manufacturing the same is disclosed. The light guide (30) has an array of light control features (32) mechanically machined into its surface during manufacture to scatter light within the light guide (30) so that it passes out of the light guide (30) to illuminate the backlit display (100). Light is introduced to the light guide (30) from light boxes (50) containing light sources. Each light source is joined to a coupling element (52) to increase efficiency of light entry into the light guide (30) and to increase the amount of light directed toward the light control features (32).

Description

GB 2423183 A continuation (72) Inventor(s): Owen Michael Gerard O'Neill
Howell John Griffiths Christopher John Ferrari Michael John Hanney (74) Agent and/or Address for Service: Appleyard Lees dare Road, HALIFAX, West Yorkshire, HX1 2HY, United Kingdom
GB0607613A 2003-09-18 2004-09-17 Improvements in and relating to backlit displays Withdrawn GB2423183A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0321836.9A GB0321836D0 (en) 2003-09-18 2003-09-18 Improvements in and relating to backlit displays
PCT/GB2004/003971 WO2005026611A2 (en) 2003-09-18 2004-09-17 Improvements in and relating to backlit displays

Publications (2)

Publication Number Publication Date
GB0607613D0 GB0607613D0 (en) 2006-05-31
GB2423183A true GB2423183A (en) 2006-08-16

Family

ID=29227299

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB0321836.9A Ceased GB0321836D0 (en) 2003-09-18 2003-09-18 Improvements in and relating to backlit displays
GB0607613A Withdrawn GB2423183A (en) 2003-09-18 2004-09-17 Improvements in and relating to backlit displays

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB0321836.9A Ceased GB0321836D0 (en) 2003-09-18 2003-09-18 Improvements in and relating to backlit displays

Country Status (2)

Country Link
GB (2) GB0321836D0 (en)
WO (1) WO2005026611A2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4890201A (en) * 1987-01-15 1989-12-26 Generaldirektoratet For Danske Statsbaner, Dsb, And Jens Moller-Jensen Light transmitting plate member
WO2002075375A1 (en) * 2001-03-16 2002-09-26 Toray Industries, Inc. Optical functional sheet
US20030147259A1 (en) * 2002-02-02 2003-08-07 Opti-Flux Technologies Inc. Light emitting flat panel with embedded light guides yielding controlled light extraction for general lighting luminaire

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4890201A (en) * 1987-01-15 1989-12-26 Generaldirektoratet For Danske Statsbaner, Dsb, And Jens Moller-Jensen Light transmitting plate member
WO2002075375A1 (en) * 2001-03-16 2002-09-26 Toray Industries, Inc. Optical functional sheet
EP1369711A1 (en) * 2001-03-16 2003-12-10 Toray Industries, Inc. Optical functional sheet
US20030147259A1 (en) * 2002-02-02 2003-08-07 Opti-Flux Technologies Inc. Light emitting flat panel with embedded light guides yielding controlled light extraction for general lighting luminaire

Also Published As

Publication number Publication date
WO2005026611A2 (en) 2005-03-24
GB0321836D0 (en) 2003-10-15
GB0607613D0 (en) 2006-05-31
WO2005026611A3 (en) 2005-09-22

Similar Documents

Publication Publication Date Title
EP0992837A3 (en) Reflection type semiconductor display device
WO2002093070A3 (en) Ultra-thin backlight
EP0778440A3 (en) Backlighting device and color display device
WO2005065387A3 (en) Waveguide comprising scattered light detectable particles
EP1329762A3 (en) Light guide plate having anti-reflection layer, method of manufacturing the same, illumination device, and liquid crystal display
TW351728B (en) Anti-dizziness thin film
AU2003215839A8 (en) Compact lighting system and display device
AU6202600A (en) Lighting apparatus
IL164459A0 (en) Apparatus and method to generate and control optical traps to manipulate small particles
AU1805888A (en) Cuvette and apparatus for performing biological assays
WO2005121851A3 (en) Waveguide with a three-dimensional lens
EP0770818A3 (en) Illuminator
AU2001239764A1 (en) Light guides suitable for illuminated displays
BG102075A (en) Amorphous transparent coloured plate of crystallizable thermoplast, method for its preparation and application
DE50213067D1 (en) LIGHT GUIDES AND METHOD FOR THE PRODUCTION THEREOF
TW358900B (en) A through screen
EP1245988A3 (en) Display apparatus
WO2003015037A3 (en) Document validator subassembly
EP0780679A3 (en) Analyzer for analyzing urine material components
AU2003206004A1 (en) Compact lighting system and display device
EP0841151A3 (en) Flexible light pipe for side-lit applications
GB2423183A (en) Improvements in and relating to backlit displays
EP1396744A3 (en) Light guide containing light-scattering particles arranged to realize desired light-output efficiency and method for designing the same
AU2707597A (en) Method of assay
MX9708697A (en) Method of diagnosing prostate cancer.

Legal Events

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