TW200638129A - A light source for LCD back-lit displays - Google Patents

A light source for LCD back-lit displays

Info

Publication number
TW200638129A
TW200638129A TW094134645A TW94134645A TW200638129A TW 200638129 A TW200638129 A TW 200638129A TW 094134645 A TW094134645 A TW 094134645A TW 94134645 A TW94134645 A TW 94134645A TW 200638129 A TW200638129 A TW 200638129A
Authority
TW
Taiwan
Prior art keywords
light
layer
photodetector
light source
embedded
Prior art date
Application number
TW094134645A
Other languages
English (en)
Chinese (zh)
Inventor
Fook-Chuin Ng
Tak-Meng Cheang
Choon-Guan Ko
Choon-Keat Chew
Original Assignee
Avago Tech Ecbu Ip Sg Pte 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 Avago Tech Ecbu Ip Sg Pte Ltd filed Critical Avago Tech Ecbu Ip Sg Pte Ltd
Publication of TW200638129A publication Critical patent/TW200638129A/zh

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
    • G01J1/20—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle
    • G01J1/28—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle using variation of intensity or distance of source
    • G01J1/30—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle using variation of intensity or distance of source using electric radiation detectors
    • G01J1/32—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle using variation of intensity or distance of source using electric radiation detectors adapted for automatic variation of the measured or reference value
    • 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
    • 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
    • G02B6/0058—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)
  • Spectroscopy & Molecular Physics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Planar Illumination Modules (AREA)
TW094134645A 2005-04-28 2005-10-04 A light source for LCD back-lit displays TW200638129A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/119,206 US20060243893A1 (en) 2005-04-28 2005-04-28 A light source for lcd back-lit displays utilizing embedded light detectors

Publications (1)

Publication Number Publication Date
TW200638129A true TW200638129A (en) 2006-11-01

Family

ID=37195125

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094134645A TW200638129A (en) 2005-04-28 2005-10-04 A light source for LCD back-lit displays

Country Status (4)

Country Link
US (1) US20060243893A1 (enExample)
JP (1) JP2006310307A (enExample)
CN (1) CN100529905C (enExample)
TW (1) TW200638129A (enExample)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5490410B2 (ja) * 2005-08-02 2014-05-14 コーニンクレッカ フィリップス エヌ ヴェ 照明システム、光センシングプレート及び表示装置
JP4883522B2 (ja) * 2006-03-22 2012-02-22 Ｎｌｔテクノロジー株式会社 液晶表示装置及びそれに用いるバックライトユニット
US7955002B2 (en) 2006-12-18 2011-06-07 Verizon Patent And Licensing Inc. Optical signal measurement device
US8308375B2 (en) * 2006-12-18 2012-11-13 Verizon Patent And Licensing Inc. Optical signal measurement devices
CN101377589B (zh) * 2007-08-27 2012-03-21 奇美电子股份有限公司 背光模组及使用此背光模组的液晶显示装置
TW200951410A (en) * 2008-01-28 2009-12-16 Koninkl Philips Electronics Nv Lighting unit with photosensor
US8025434B2 (en) * 2008-06-03 2011-09-27 Nokia Corporation Two-sided illumination device
US9528906B1 (en) * 2013-12-19 2016-12-27 Apple Inc. Monitoring DOE performance using total internal reflection
DE102017119286A1 (de) * 2017-08-23 2019-02-28 HELLA GmbH & Co. KGaA Verfahren zur Fehlerdetektion bei einer Lichteinheit für ein Kraftfahrzeug, Licht-einheit, Computerprogrammprodukt und computerlesbares Medium
CN116466427B (zh) * 2023-03-01 2023-10-17 广东千瞬光电科技有限公司 一种导光板侧入式背光组件

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1231757B (de) * 1966-01-29 1967-01-05 Zeiss Ikon Ag Tastatur mit unbeweglichen Tastschaltern
US4387367A (en) * 1981-06-19 1983-06-07 Fisher Charles R Optical keyboard
US5390276A (en) * 1992-10-08 1995-02-14 Briteview Technologies Backlighting assembly utilizing microprisms and especially suitable for use with a liquid crystal display
TWI240241B (en) * 2000-05-04 2005-09-21 Koninkl Philips Electronics Nv Assembly of a display device and an illumination system
US6661542B1 (en) * 2000-08-23 2003-12-09 Gateway, Inc. Display and scanning assembly
US6611000B2 (en) * 2001-03-14 2003-08-26 Matsushita Electric Industrial Co., Ltd. Lighting device
JP3942169B2 (ja) * 2002-08-29 2007-07-11 東北パイオニア株式会社 発光表示パネルの駆動装置および駆動方法

Also Published As

Publication number Publication date
JP2006310307A (ja) 2006-11-09
US20060243893A1 (en) 2006-11-02
CN100529905C (zh) 2009-08-19
CN1854860A (zh) 2006-11-01

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