ATE252706T1 - Lichtleiter zur hintergrundbeleuchtung eines flachbildschirms - Google Patents

Lichtleiter zur hintergrundbeleuchtung eines flachbildschirms

Info

Publication number
ATE252706T1
ATE252706T1 AT99660194T AT99660194T ATE252706T1 AT E252706 T1 ATE252706 T1 AT E252706T1 AT 99660194 T AT99660194 T AT 99660194T AT 99660194 T AT99660194 T AT 99660194T AT E252706 T1 ATE252706 T1 AT E252706T1
Authority
AT
Austria
Prior art keywords
backlighting
light
light guide
flat screen
input end
Prior art date
Application number
AT99660194T
Other languages
English (en)
Inventor
Marko Parikka
Markku Kuittinen
Jari Turunen
Original Assignee
Nokia Corp
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8553217&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE252706(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Nokia Corp filed Critical Nokia Corp
Application granted granted Critical
Publication of ATE252706T1 publication Critical patent/ATE252706T1/de

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
    • G02B6/0031—Reflecting element, sheet or layer
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1828—Diffraction gratings having means for producing variable diffraction
    • 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
    • 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
    • G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide
    • G02B6/0061—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide to provide homogeneous light output intensity

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Liquid Crystal (AREA)
  • Woven Fabrics (AREA)
  • Overhead Projectors And Projection Screens (AREA)
  • Position Input By Displaying (AREA)
  • Holo Graphy (AREA)
AT99660194T 1998-12-30 1999-12-28 Lichtleiter zur hintergrundbeleuchtung eines flachbildschirms ATE252706T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI982825A FI106323B (fi) 1998-12-30 1998-12-30 Taustavalaistuksen valonjohdin litteälle näytölle

Publications (1)

Publication Number Publication Date
ATE252706T1 true ATE252706T1 (de) 2003-11-15

Family

ID=8553217

Family Applications (2)

Application Number Title Priority Date Filing Date
AT05007478T ATE393406T1 (de) 1998-12-30 1999-12-28 Lichtleiter zur hintergrundbeleuchtung eines flachbildschirms
AT99660194T ATE252706T1 (de) 1998-12-30 1999-12-28 Lichtleiter zur hintergrundbeleuchtung eines flachbildschirms

Family Applications Before (1)

Application Number Title Priority Date Filing Date
AT05007478T ATE393406T1 (de) 1998-12-30 1999-12-28 Lichtleiter zur hintergrundbeleuchtung eines flachbildschirms

Country Status (6)

Country Link
US (3) US7114820B1 (de)
EP (3) EP1564568B2 (de)
AT (2) ATE393406T1 (de)
DE (2) DE69912233T2 (de)
ES (2) ES2305934T3 (de)
FI (1) FI106323B (de)

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ATE393406T1 (de) 2008-05-15
ES2209367T3 (es) 2004-06-16
US7192175B2 (en) 2007-03-20
FI106323B (fi) 2001-01-15
EP1016817B1 (de) 2003-10-22
DE69938614T2 (de) 2009-06-10
EP1351074A1 (de) 2003-10-08
FI982825A0 (fi) 1998-12-30
ES2305934T3 (es) 2008-11-01
US20050213348A1 (en) 2005-09-29
US7114820B1 (en) 2006-10-03
FI982825A (fi) 2000-07-01
DE69912233T2 (de) 2004-08-19
DE69912233D1 (de) 2003-11-27
EP1016817B2 (de) 2014-10-01
EP1564568B2 (de) 2014-10-01
US20060187677A1 (en) 2006-08-24
EP1016817A1 (de) 2000-07-05
EP1564568A1 (de) 2005-08-17
US7712942B2 (en) 2010-05-11
EP1564568B1 (de) 2008-04-23
DE69938614D1 (de) 2008-06-05

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