TWI255948B - Backlight unit in a liquid crystal display device - Google Patents

Backlight unit in a liquid crystal display device

Info

Publication number
TWI255948B
TWI255948B TW093108056A TW93108056A TWI255948B TW I255948 B TWI255948 B TW I255948B TW 093108056 A TW093108056 A TW 093108056A TW 93108056 A TW93108056 A TW 93108056A TW I255948 B TWI255948 B TW I255948B
Authority
TW
Taiwan
Prior art keywords
backlight unit
scatter
liquid crystal
display device
rod member
Prior art date
Application number
TW093108056A
Other languages
English (en)
Other versions
TW200424689A (en
Inventor
Shinichirou Ono
Hirokazu Fukuyoshi
Original Assignee
Nec Lcd Technologies 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 Nec Lcd Technologies Ltd filed Critical Nec Lcd Technologies Ltd
Publication of TW200424689A publication Critical patent/TW200424689A/zh
Application granted granted Critical
Publication of TWI255948B publication Critical patent/TWI255948B/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
    • G02F1/133602—Direct backlight
    • G02F1/133611—Direct backlight including means for improving the brightness uniformity
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L23/00—Cleaning footwear
    • A47L23/22—Devices or implements resting on the floor for removing mud, dirt, or dust from footwear
    • A47L23/26—Mats or gratings combined with brushes ; Mats
    • A47L23/266—Mats
    • 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
    • G02F1/133602—Direct backlight
    • G02F1/133604—Direct backlight with lamps
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G27/00—Floor fabrics; Fastenings therefor
    • A47G27/02—Carpets; Stair runners; Bedside rugs; Foot mats
    • 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
    • G02F1/133342—Constructional arrangements; Manufacturing methods for double-sided displays
    • 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
    • G02F1/133602—Direct backlight
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)
TW093108056A 2003-03-27 2004-03-25 Backlight unit in a liquid crystal display device TWI255948B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003087871A JP4371687B2 (ja) 2003-03-27 2003-03-27 バックライト装置及び液晶表示装置

Publications (2)

Publication Number Publication Date
TW200424689A TW200424689A (en) 2004-11-16
TWI255948B true TWI255948B (en) 2006-06-01

Family

ID=32985185

Family Applications (1)

Application Number Title Priority Date Filing Date
TW093108056A TWI255948B (en) 2003-03-27 2004-03-25 Backlight unit in a liquid crystal display device

Country Status (5)

Country Link
US (1) US7106394B2 (zh)
JP (1) JP4371687B2 (zh)
KR (1) KR100685086B1 (zh)
CN (1) CN1312520C (zh)
TW (1) TWI255948B (zh)

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CN1301434C (zh) * 2003-06-18 2007-02-21 友达光电股份有限公司 双面式背光组件和液晶显示装置
JP4017039B2 (ja) * 2003-11-18 2007-12-05 シャープ株式会社 照明装置およびそれを備えた表示装置
JP4086837B2 (ja) 2003-12-03 2008-05-14 シャープ株式会社 照明装置およびそれを備えた表示装置
JP3909603B2 (ja) 2003-12-19 2007-04-25 シャープ株式会社 光学材料、光学部材、照明装置および表示装置
JP4502776B2 (ja) 2004-10-15 2010-07-14 Ｎｅｃ液晶テクノロジー株式会社 照明装置及び液晶表示装置
KR20060074354A (ko) * 2004-12-27 2006-07-03 삼성전자주식회사 백라이트 어셈블리 및 이를 갖는 액정표시장치
JP2007103181A (ja) * 2005-10-05 2007-04-19 Fujifilm Corp 面光源装置、および表示器
KR101321268B1 (ko) * 2005-12-27 2013-10-25 엘지디스플레이 주식회사 액정표시소자의 백라이트 유닛
WO2007077657A1 (ja) * 2006-01-05 2007-07-12 Sharp Kabushiki Kaisha 照明装置、表示装置およびテレビジョン受信機
KR100754208B1 (ko) 2006-02-20 2007-09-03 삼성전자주식회사 평판형 디스플레이 장치
JP2008152933A (ja) * 2006-12-14 2008-07-03 Takehisa Saito 面発光装置、及び発光式看板
CN100445834C (zh) * 2007-02-09 2008-12-24 友达光电股份有限公司 背光结构
JP5141032B2 (ja) * 2007-02-14 2013-02-13 凸版印刷株式会社 光学シート
JP5195116B2 (ja) 2008-04-17 2013-05-08 ソニー株式会社 面光源装置及び画像表示装置
TWI421586B (zh) * 2009-01-06 2014-01-01 Au Optronics Corp 背光模組與雙面液晶顯示裝置
US20100208161A1 (en) * 2009-02-19 2010-08-19 Victor Company Of Japan, Limited Backlight device and liquid crystal display
KR101824037B1 (ko) * 2011-07-19 2018-01-31 엘지이노텍 주식회사 디스플레이 장치
CN103399429A (zh) * 2013-07-30 2013-11-20 深圳市华星光电技术有限公司 双面显示器
TWI557474B (zh) * 2014-09-16 2016-11-11 友達光電股份有限公司 雙面背光模組

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JPH04225324A (ja) * 1990-12-27 1992-08-14 Sharp Corp 液晶用照明装置
US5274533A (en) * 1991-01-25 1993-12-28 Neary Robert A Reflector assembly having improved light reflection and ballast access
JPH04275525A (ja) 1991-03-04 1992-10-01 Sharp Corp バックライト付液晶表示装置
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JP3086609B2 (ja) * 1994-12-27 2000-09-11 シャープ株式会社 液晶用照明装置
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JP2002184231A (ja) * 2000-12-13 2002-06-28 Fujitsu Ltd 照明装置
JP4023079B2 (ja) * 2000-08-31 2007-12-19 株式会社日立製作所 面状照明装置及びこれを備えた表示装置
KR100640987B1 (ko) * 2000-10-14 2006-11-02 엘지.필립스 엘시디 주식회사 액정표시장치의 직하형 백라이트 어셈블리
KR20020040989A (ko) 2000-11-25 2002-05-31 주식회사 현대 디스플레이 테크놀로지 양면광 출력형 백라이트 유닛
JP3803554B2 (ja) 2001-02-16 2006-08-02 株式会社日立製作所 液晶表示装置
KR20020067232A (ko) * 2001-02-16 2002-08-22 주식회사 지엘디 엘시디용 직하형 백라이트장치
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Also Published As

Publication number Publication date
KR20040085020A (ko) 2004-10-07
JP2004296298A (ja) 2004-10-21
CN1534353A (zh) 2004-10-06
US20040189892A1 (en) 2004-09-30
TW200424689A (en) 2004-11-16
US7106394B2 (en) 2006-09-12
CN1312520C (zh) 2007-04-25
JP4371687B2 (ja) 2009-11-25
KR100685086B1 (ko) 2007-02-22

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Legal Events

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