WO2010005230A3 - 백라이트 유닛 및 이를 포함하는 액정표시장치 - Google Patents

백라이트 유닛 및 이를 포함하는 액정표시장치 Download PDF

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Publication number
WO2010005230A3
WO2010005230A3 PCT/KR2009/003721 KR2009003721W WO2010005230A3 WO 2010005230 A3 WO2010005230 A3 WO 2010005230A3 KR 2009003721 W KR2009003721 W KR 2009003721W WO 2010005230 A3 WO2010005230 A3 WO 2010005230A3
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WO
WIPO (PCT)
Prior art keywords
light
polarization
backlight unit
random polarized
liquid crystal
Prior art date
Application number
PCT/KR2009/003721
Other languages
English (en)
French (fr)
Other versions
WO2010005230A2 (ko
Inventor
김도윤
안정애
안준원
장혜진
Original Assignee
주식회사 엘엠에스
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 주식회사 엘엠에스 filed Critical 주식회사 엘엠에스
Publication of WO2010005230A2 publication Critical patent/WO2010005230A2/ko
Publication of WO2010005230A3 publication Critical patent/WO2010005230A3/ko

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    • 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
    • G02F1/133621—Illuminating devices providing coloured light
    • 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
    • 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
    • G02F1/133528—Polarisers
    • G02F1/133545—Dielectric stack polarisers
    • 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
    • G02F1/13362—Illuminating devices providing polarized light, e.g. by converting a polarisation component into another one

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)
  • Liquid Crystal (AREA)
  • Planar Illumination Modules (AREA)

Abstract

본 발명은 백라이트 유닛의 소비전력을 감소시키고 광원의 수명을 연장시킬 수 있는 백라이트 유닛 및 이를 포함하는 액정표시장치에 관한 것이다. 이를 위한 본 발명은, 제1편광의 광은 투과시키고 제2편광의 광은 흡수하는 흡수편광막을 포함한 액정표시장치에 사용되는 백라이트 유닛에 있어서, 각각 R,G,B 랜덤편광을 발생시키는 다수의 R,G,B LED 광원; 및 상기 LED 광원에서 발생 되는 R,G,B 랜덤편광 중 적어도 하나의 랜덤편광에 대해서 그 제1편광의 광은 투과시키고 제2편광의 광은 반사시키며, 나머지 랜덤편광에 대해서는 그 제1 및 제2 편광의 광을 투과시켜 상기 흡수편광막으로 출사시키는 반사편광필름; 을 포함하며, 적어도 하나의 LED 광원에 입력되는 에너지, 예를 들어 전류의 세기가 나머지 다른 LED 광원에 입력되는 에너지, 예를 들어 전류의 세기보다 작은 것을 특징으로 한다.
PCT/KR2009/003721 2008-07-08 2009-07-07 백라이트 유닛 및 이를 포함하는 액정표시장치 WO2010005230A2 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2008-0066212 2008-07-08
KR1020080066212A KR100925726B1 (ko) 2008-07-08 2008-07-08 백라이트 유닛 및 이를 포함하는 액정표시장치

Publications (2)

Publication Number Publication Date
WO2010005230A2 WO2010005230A2 (ko) 2010-01-14
WO2010005230A3 true WO2010005230A3 (ko) 2010-04-22

Family

ID=41507573

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2009/003721 WO2010005230A2 (ko) 2008-07-08 2009-07-07 백라이트 유닛 및 이를 포함하는 액정표시장치

Country Status (2)

Country Link
KR (1) KR100925726B1 (ko)
WO (1) WO2010005230A2 (ko)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020061474A (ko) * 2001-01-15 2002-07-24 가부시키가이샤 히타치세이사쿠쇼 발광 소자 및 표시 장치
KR20050120136A (ko) * 2004-06-18 2005-12-22 옵티맥스 테크놀러지 코포레이션 컬러 유기 발광 다이오드의 간섭광을 개선하기 위한고투과율 편광막
KR100714016B1 (ko) * 2005-12-13 2007-05-04 삼성에스디아이 주식회사 유기 발광 표시장치

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100869276B1 (ko) 2008-02-04 2008-11-18 주식회사 엘엠에스 광대역 반사편광자, 이를 포함하는 벡라이트 유닛 및 액정디스플레이장치
KR100860730B1 (ko) 2008-03-14 2008-09-29 주식회사 엘엠에스 백라이트 유닛 및 이를 포함하는 액정표시장치

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020061474A (ko) * 2001-01-15 2002-07-24 가부시키가이샤 히타치세이사쿠쇼 발광 소자 및 표시 장치
KR20050120136A (ko) * 2004-06-18 2005-12-22 옵티맥스 테크놀러지 코포레이션 컬러 유기 발광 다이오드의 간섭광을 개선하기 위한고투과율 편광막
KR100714016B1 (ko) * 2005-12-13 2007-05-04 삼성에스디아이 주식회사 유기 발광 표시장치

Also Published As

Publication number Publication date
KR100925726B1 (ko) 2009-11-10
WO2010005230A2 (ko) 2010-01-14

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