JP4418864B2 - 一体型表面ディフューザを有する光導波路付きバックライトアセンブリ - Google Patents

一体型表面ディフューザを有する光導波路付きバックライトアセンブリ Download PDF

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Publication number
JP4418864B2
JP4418864B2 JP2001509946A JP2001509946A JP4418864B2 JP 4418864 B2 JP4418864 B2 JP 4418864B2 JP 2001509946 A JP2001509946 A JP 2001509946A JP 2001509946 A JP2001509946 A JP 2001509946A JP 4418864 B2 JP4418864 B2 JP 4418864B2
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JP
Japan
Prior art keywords
optical waveguide
diffuser
front surface
backlight assembly
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.)
Expired - Fee Related
Application number
JP2001509946A
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English (en)
Japanese (ja)
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JP2003504682A5 (enExample
JP2003504682A (ja
Inventor
ホセイニ、アッバス
チュン、ヒュン−スン
ワシリエフ、アナトリ
ディ． サヴァント、ガジェンドラ
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.)
Asahi Kasei Corp
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Asahi Kasei Corp
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Filing date
Publication date
Application filed by Asahi Kasei Corp filed Critical Asahi Kasei Corp
Publication of JP2003504682A publication Critical patent/JP2003504682A/ja
Publication of JP2003504682A5 publication Critical patent/JP2003504682A5/ja
Application granted granted Critical
Publication of JP4418864B2 publication Critical patent/JP4418864B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • 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
    • 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
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
    • G01D11/28—Structurally-combined illuminating devices
    • 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
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0053—Prismatic sheet or layer; Brightness enhancement element, sheet or layer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S385/00—Optical waveguides
    • Y10S385/901—Illuminating or display apparatus

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)
  • Optical Elements Other Than Lenses (AREA)
JP2001509946A 1999-07-08 2000-06-29 一体型表面ディフューザを有する光導波路付きバックライトアセンブリ Expired - Fee Related JP4418864B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/350,198 1999-07-08
US09/350,198 US6347873B1 (en) 1999-07-08 1999-07-08 Backlight assembly with a light pipe having an integral surface diffuser
PCT/US2000/018024 WO2001004579A1 (en) 1999-07-08 2000-06-29 Backlight assembly with a light pipe having an integral surface diffuser

Publications (3)

Publication Number Publication Date
JP2003504682A JP2003504682A (ja) 2003-02-04
JP2003504682A5 JP2003504682A5 (enExample) 2009-09-10
JP4418864B2 true JP4418864B2 (ja) 2010-02-24

Family

ID=23375633

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001509946A Expired - Fee Related JP4418864B2 (ja) 1999-07-08 2000-06-29 一体型表面ディフューザを有する光導波路付きバックライトアセンブリ

Country Status (7)

Country Link
US (2) US6347873B1 (enExample)
EP (1) EP1194741A4 (enExample)
JP (1) JP4418864B2 (enExample)
KR (1) KR100784572B1 (enExample)
IL (2) IL147484A0 (enExample)
TW (1) TWI252303B (enExample)
WO (1) WO2001004579A1 (enExample)

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Also Published As

Publication number Publication date
EP1194741A4 (en) 2002-09-04
US6347873B1 (en) 2002-02-19
WO2001004579A1 (en) 2001-01-18
EP1194741A1 (en) 2002-04-10
IL147484A0 (en) 2002-08-14
IL147484A (en) 2006-04-10
US6481864B2 (en) 2002-11-19
JP2003504682A (ja) 2003-02-04
KR20020064275A (ko) 2002-08-07
KR100784572B1 (ko) 2007-12-10
US20010001595A1 (en) 2001-05-24
TWI252303B (en) 2006-04-01

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