TWI235271B - Plane light source device and image display device - Google Patents

Plane light source device and image display device Download PDF

Info

Publication number
TWI235271B
TWI235271B TW090126234A TW90126234A TWI235271B TW I235271 B TWI235271 B TW I235271B TW 090126234 A TW090126234 A TW 090126234A TW 90126234 A TW90126234 A TW 90126234A TW I235271 B TWI235271 B TW I235271B
Authority
TW
Taiwan
Prior art keywords
light source
light
shaped
frame
aforementioned
Prior art date
Application number
TW090126234A
Other languages
English (en)
Chinese (zh)
Inventor
Takeshi Shioya
Mamoru Yoshida
Tsutomu Arihara
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 TWI235271B publication Critical patent/TWI235271B/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
    • G02F1/1336—Illuminating devices
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • 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
    • 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
    • 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
TW090126234A 2000-10-26 2001-10-24 Plane light source device and image display device TWI235271B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000326568A JP3792498B2 (ja) 2000-10-26 2000-10-26 面光源装置及び画像表示装置

Publications (1)

Publication Number Publication Date
TWI235271B true TWI235271B (en) 2005-07-01

Family

ID=18803733

Family Applications (1)

Application Number Title Priority Date Filing Date
TW090126234A TWI235271B (en) 2000-10-26 2001-10-24 Plane light source device and image display device

Country Status (3)

Country Link
JP (1) JP3792498B2 (ko)
KR (2) KR100828976B1 (ko)
TW (1) TWI235271B (ko)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020064229A (ko) * 2002-05-28 2002-08-07 주식회사 엘에스텍 백 라이트 유니트
KR100774579B1 (ko) * 2002-10-25 2007-11-09 삼성전자주식회사 백라이트 어셈블리 및 이를 갖는 액정표시장치
KR100962641B1 (ko) * 2003-07-07 2010-06-11 삼성전자주식회사 백라이트 어셈블리와 이를 갖는 액정 표시 장치 및 백라이트 어셈블리의 제조 방법
CN1327275C (zh) * 2003-09-11 2007-07-18 友达光电股份有限公司 背光组件
KR100971953B1 (ko) * 2003-10-07 2010-07-23 엘지디스플레이 주식회사 화면 주름현상의 개선을 위한 액정표시모듈
KR100999011B1 (ko) 2004-04-30 2010-12-09 엘지디스플레이 주식회사 백라이트 유닛과 이를 이용한 액정표시장치
KR101114854B1 (ko) * 2004-12-24 2012-03-07 엘지디스플레이 주식회사 배광장치
JP4653560B2 (ja) * 2005-05-30 2011-03-16 シャープ株式会社 液晶表示装置
JP2007095662A (ja) 2005-09-02 2007-04-12 Mitsubishi Electric Corp 面状光源装置
KR101001239B1 (ko) 2007-10-25 2010-12-17 서울반도체 주식회사 볼록면들을 구비하는 하부면을 갖는 도광판 및 그것을채택하는 백라이트 패널
KR101666224B1 (ko) * 2009-12-10 2016-10-13 엘지디스플레이 주식회사 백라이트 유닛 및 이를 구비한 액정표시장치
US8231258B2 (en) * 2010-04-10 2012-07-31 Lg Innotek Co., Ltd. Lighting module and lighting apparatus including the same
CN102235619A (zh) * 2010-04-30 2011-11-09 北京京东方光电科技有限公司 背光模组和液晶显示器
JP5978591B2 (ja) * 2011-10-25 2016-08-24 船井電機株式会社 表示装置
US9621838B2 (en) 2011-10-25 2017-04-11 Funai Electric Co., Ltd. Display device and television apparatus
KR102068955B1 (ko) 2012-08-16 2020-01-22 엘지디스플레이 주식회사 백라이트 유닛
CN113251348B (zh) * 2021-05-12 2023-10-27 宁波智鼎电器有限公司 一种可调控的led投光灯

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2924015B2 (ja) * 1989-11-14 1999-07-26 松下電器産業株式会社 液晶表示装置
JP3119241B2 (ja) * 1998-07-01 2000-12-18 日本電気株式会社 液晶表示装置
JP2000231102A (ja) * 1999-02-09 2000-08-22 Mitsubishi Chemicals Corp 面光源装置及びこれを用いた液晶ディスプレイ装置
JP2000294025A (ja) * 1999-04-07 2000-10-20 Enplas Corp 面光源装置及び液晶表示装置

Also Published As

Publication number Publication date
JP2002133935A (ja) 2002-05-10
KR20020032384A (ko) 2002-05-03
KR100828976B1 (ko) 2008-05-13
KR20070118568A (ko) 2007-12-17
JP3792498B2 (ja) 2006-07-05
KR100869688B1 (ko) 2008-11-21

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