WO2011040731A3 - 박막형 콜레스테릭 반사편광자, 이를 갖는 백라이트 유닛 및 액정 디스플레이 - Google Patents

박막형 콜레스테릭 반사편광자, 이를 갖는 백라이트 유닛 및 액정 디스플레이 Download PDF

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Publication number
WO2011040731A3
WO2011040731A3 PCT/KR2010/006533 KR2010006533W WO2011040731A3 WO 2011040731 A3 WO2011040731 A3 WO 2011040731A3 KR 2010006533 W KR2010006533 W KR 2010006533W WO 2011040731 A3 WO2011040731 A3 WO 2011040731A3
Authority
WO
WIPO (PCT)
Prior art keywords
liquid crystal
thin film
crystal display
polarized light
reflective polarizer
Prior art date
Application number
PCT/KR2010/006533
Other languages
English (en)
French (fr)
Other versions
WO2011040731A2 (ko
Inventor
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 WO2011040731A2 publication Critical patent/WO2011040731A2/ko
Publication of WO2011040731A3 publication Critical patent/WO2011040731A3/ko

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
    • G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3016—Polarising elements involving passive liquid crystal elements
    • 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
    • G02B6/0056—Means for improving the coupling-out of light from the light guide for producing polarisation effects, e.g. by a surface with polarizing properties or by an additional polarizing elements

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Polarising Elements (AREA)

Abstract

본 발명은 액정 디스플레이에 사용되는 박막형 콜레스테릭 반사편광자에 관한 것이다. 이러한 본 발명은, 입사된 가시광선 중 Red·Green·Blue 파장대역을 이루는 각각의 랜덤편광을 선택적으로 투과·반사시키도록 상이한 피치를 갖는 복수개의 콜레스테릭 액정층이 적층된 반사편광필름과, 상기 반사편광필름으로 투과된 원편광을 선편광으로 전환시키는 위상지연판을 포함하되, 상기 각각의 콜레스테릭 액정층만이 적층된 총 두께는 6.3㎛를 초과하지 않도록 구성하는 것이다. 상기와 같이 구성된 본 발명에 따르면, 박막화된 반사편광필름에 의해 위상지연의 발생을 낮추어 시야각 변화에 따른 색상의 왜곡현상을 현저히 낮출 수 있는 장점이 있다.
PCT/KR2010/006533 2009-09-30 2010-09-27 박막형 콜레스테릭 반사편광자, 이를 갖는 백라이트 유닛 및 액정 디스플레이 WO2011040731A2 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2009-0093059 2009-09-30
KR1020090093059A KR100961117B1 (ko) 2009-09-30 2009-09-30 박막형 콜레스테릭 반사편광자, 이를 갖는 백라이트 유닛 및 액정 디스플레이

Publications (2)

Publication Number Publication Date
WO2011040731A2 WO2011040731A2 (ko) 2011-04-07
WO2011040731A3 true WO2011040731A3 (ko) 2011-09-22

Family

ID=42369534

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2010/006533 WO2011040731A2 (ko) 2009-09-30 2010-09-27 박막형 콜레스테릭 반사편광자, 이를 갖는 백라이트 유닛 및 액정 디스플레이

Country Status (2)

Country Link
KR (1) KR100961117B1 (ko)
WO (1) WO2011040731A2 (ko)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108680980B (zh) * 2018-07-10 2024-03-15 宁波激智科技股份有限公司 一种防蓝光光学薄膜及其制备方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1144816A (ja) * 1997-05-29 1999-02-16 Nitto Denko Corp 円偏光分離板、その製造方法、光学素子、偏光光源装置及び液晶表示装置
KR20060094250A (ko) * 2005-02-24 2006-08-29 주식회사 엘지에스 반사편광필름 및 이를 갖는 디스플레이장치
KR100835556B1 (ko) * 2007-10-17 2008-06-05 주식회사 엘지에스 광대역 콜레스테릭 액정 반사편광자의 제조방법, 및반사편광자

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1144816A (ja) * 1997-05-29 1999-02-16 Nitto Denko Corp 円偏光分離板、その製造方法、光学素子、偏光光源装置及び液晶表示装置
KR20060094250A (ko) * 2005-02-24 2006-08-29 주식회사 엘지에스 반사편광필름 및 이를 갖는 디스플레이장치
KR100835556B1 (ko) * 2007-10-17 2008-06-05 주식회사 엘지에스 광대역 콜레스테릭 액정 반사편광자의 제조방법, 및반사편광자

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Publication number Publication date
KR100961117B1 (ko) 2010-06-07
WO2011040731A2 (ko) 2011-04-07

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