TWI234015B - Light guide plate, surface light source device and liquid crystal display device - Google Patents

Light guide plate, surface light source device and liquid crystal display device Download PDF

Info

Publication number
TWI234015B
TWI234015B TW089126551A TW89126551A TWI234015B TW I234015 B TWI234015 B TW I234015B TW 089126551 A TW089126551 A TW 089126551A TW 89126551 A TW89126551 A TW 89126551A TW I234015 B TWI234015 B TW I234015B
Authority
TW
Taiwan
Prior art keywords
light
guide plate
light guide
light source
liquid crystal
Prior art date
Application number
TW089126551A
Other languages
English (en)
Chinese (zh)
Inventor
Shingo Ohkawa
Original Assignee
Enplas 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
Application filed by Enplas Corp filed Critical Enplas Corp
Application granted granted Critical
Publication of TWI234015B publication Critical patent/TWI234015B/zh

Links

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
    • G02F1/133524—Light-guides, e.g. fibre-optic bundles, louvered or jalousie light-guides
    • 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
    • G02B6/0035—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
    • G02B6/0045—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 by shaping at least a portion of the light guide
    • G02B6/0046—Tapered light guide, e.g. wedge-shaped 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

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Planar Illumination Modules (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Liquid Crystal (AREA)
TW089126551A 1999-12-17 2000-12-13 Light guide plate, surface light source device and liquid crystal display device TWI234015B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP35832099A JP3852659B2 (ja) 1999-12-17 1999-12-17 導光板、面光源装置及び液晶表示装置

Publications (1)

Publication Number Publication Date
TWI234015B true TWI234015B (en) 2005-06-11

Family

ID=18458698

Family Applications (1)

Application Number Title Priority Date Filing Date
TW089126551A TWI234015B (en) 1999-12-17 2000-12-13 Light guide plate, surface light source device and liquid crystal display device

Country Status (3)

Country Link
JP (1) JP3852659B2 (ja)
KR (1) KR100639549B1 (ja)
TW (1) TWI234015B (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013116970A1 (zh) * 2012-02-08 2013-08-15 苏州晶智科技有限公司 一种用于液晶显示器的新型背光模组
TWI639793B (zh) * 2017-04-14 2018-11-01 南臺科技大學 空腔側光式led發光結構

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3931070B2 (ja) * 2001-10-22 2007-06-13 株式会社アドバンスト・ディスプレイ 面状光源装置及びこれを備えた液晶表示装置
KR100828521B1 (ko) * 2001-11-30 2008-05-13 삼성전자주식회사 액정표시장치
KR20040021178A (ko) * 2002-09-03 2004-03-10 삼성전자주식회사 면 광원장치
KR100796683B1 (ko) * 2004-11-15 2008-01-21 삼성에스디아이 주식회사 액정표시장치
TWI350360B (en) 2007-06-12 2011-10-11 Omron Tateisi Electronics Co Surface light source device
JPWO2009001802A1 (ja) * 2007-06-28 2010-08-26 日本ゼオン株式会社 照明装置
JP5222163B2 (ja) * 2009-01-19 2013-06-26 スタンレー電気株式会社 薄型導光シート及びこれを備えたバックライト

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013116970A1 (zh) * 2012-02-08 2013-08-15 苏州晶智科技有限公司 一种用于液晶显示器的新型背光模组
TWI639793B (zh) * 2017-04-14 2018-11-01 南臺科技大學 空腔側光式led發光結構

Also Published As

Publication number Publication date
JP2001174642A (ja) 2001-06-29
JP3852659B2 (ja) 2006-12-06
KR100639549B1 (ko) 2006-10-27
KR20010062504A (ko) 2001-07-07

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees