WO2011162483A3 - 스위칭 기능을 구비한 엘시디 백라이트 유닛 - Google Patents

스위칭 기능을 구비한 엘시디 백라이트 유닛 Download PDF

Info

Publication number
WO2011162483A3
WO2011162483A3 PCT/KR2011/003610 KR2011003610W WO2011162483A3 WO 2011162483 A3 WO2011162483 A3 WO 2011162483A3 KR 2011003610 W KR2011003610 W KR 2011003610W WO 2011162483 A3 WO2011162483 A3 WO 2011162483A3
Authority
WO
WIPO (PCT)
Prior art keywords
liquid crystal
light
unit including
backlight unit
switching function
Prior art date
Application number
PCT/KR2011/003610
Other languages
English (en)
French (fr)
Other versions
WO2011162483A2 (ko
Inventor
황현하
강승곤
Original Assignee
이미지랩(주)
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 이미지랩(주) filed Critical 이미지랩(주)
Publication of WO2011162483A2 publication Critical patent/WO2011162483A2/ko
Publication of WO2011162483A3 publication Critical patent/WO2011162483A3/ko

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
    • G02F1/1334—Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals
    • 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
    • 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
    • G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
    • G02F1/13476—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells in which at least one liquid crystal cell or layer assumes a scattering state
    • 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
    • G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • G02F1/13718—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on a change of the texture state of a cholesteric liquid crystal

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mathematical Physics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Dispersion Chemistry (AREA)
  • Planar Illumination Modules (AREA)

Abstract

본 발명은 스위칭 기능을 구비한 엘시디 백라이트 유닛에 관한 것으로서, 본 발명의 목적은 광원으로부터 출사되는 광의 일부 투과, 일부 산란 및 일부 반사를 능동적으로 제어할 수 있어 종래 백라이트 유닛으로는 불가능했던 로컬 디밍(Local Dimming) 기술 및 스캐닝(Scanning) 기능을 구현할 수 있는 스위칭 기능을 구비한 엘시디 백라이트 유닛을 제공하는 것이다. 본 발명에 따른 스위칭 기능을 구비한 엘시디 백라이트 유닛은 광을 발생하는 광원과, 상기 광원으로부터 진행하는 광을 상기 액정패널 측으로 반사시키는 반사판과, 조사되는 광이 상기 액정패널의 일정 영역 내로 입사되도록 광의 진행 경로를 안내하는 프리즘 시트, 및 상기 반사판과 상기 프리즘 시트 사이에 개재되어, 입사되는 광의 선택적 투과를 제어하는 능동 확산판을 포함한다. 또한, 상기 능동 확산판은 투명전극이 패턴닝 형성되어 있는 제1 투명기판과, 액정캡슐과 바인더가 혼합되어 상기 제1 투명기판의 일면 상에 인쇄 적층된 액정캡슐층, 및 상기 액정캡슐층의 일면 상에 적층되며 투명전극이 패턴닝 형성되어 있는 제2 투명기판을 포함하도록 구성되어, 상기 투명전극 패턴에 인가되는 전원의 제어를 통해 상기 다수의 액정캡슐을 선택적으로 구동하여 액정배열을 변화시킴으로써 입사광의 선택적 투과를 조절하는 것을 특징으로 한다.
PCT/KR2011/003610 2010-06-21 2011-05-17 스위칭 기능을 구비한 엘시디 백라이트 유닛 WO2011162483A2 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2010-0058554 2010-06-21
KR1020100058554A KR20110138585A (ko) 2010-06-21 2010-06-21 스위칭 기능을 구비한 엘시디 백라이트 유닛

Publications (2)

Publication Number Publication Date
WO2011162483A2 WO2011162483A2 (ko) 2011-12-29
WO2011162483A3 true WO2011162483A3 (ko) 2012-02-23

Family

ID=45371902

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2011/003610 WO2011162483A2 (ko) 2010-06-21 2011-05-17 스위칭 기능을 구비한 엘시디 백라이트 유닛

Country Status (2)

Country Link
KR (1) KR20110138585A (ko)
WO (1) WO2011162483A2 (ko)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102017203B1 (ko) 2012-05-25 2019-10-22 삼성디스플레이 주식회사 액정 렌즈 및 이를 포함하는 표시 장치
KR20140011702A (ko) 2012-07-18 2014-01-29 삼성디스플레이 주식회사 백라이트 어셈블리
KR101425573B1 (ko) * 2013-05-02 2014-08-05 서상영 개인 휴대 단말기용 보호 필름 및 이의 제조 방법
CN105765449B (zh) 2014-02-26 2019-08-20 株式会社Lg化学 液晶胶囊的制备方法
WO2015130104A1 (ko) * 2014-02-26 2015-09-03 주식회사 엘지화학 액정 캡슐의 제조 방법
US10215368B2 (en) 2016-06-03 2019-02-26 Applied Materials, Inc. Energy efficient communication and display device
KR20180053989A (ko) 2016-11-14 2018-05-24 삼성전자주식회사 백 라이트 유닛 및 이를 포함하는 디스플레이 장치
KR102594445B1 (ko) * 2016-11-22 2023-10-25 엘지디스플레이 주식회사 액정표시장치
KR102549136B1 (ko) * 2017-12-22 2023-06-30 삼성전자주식회사 디스플레이 장치 및 그 제어 방법
KR102557951B1 (ko) 2018-08-27 2023-07-21 삼성전자주식회사 디스플레이 장치
TWI720569B (zh) * 2019-08-02 2021-03-01 友達光電股份有限公司 顯示面板
CN112363349A (zh) * 2020-11-03 2021-02-12 广州长嘉电子有限公司 一种反面背光超薄无边框电视

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010099533A (ko) * 2000-04-27 2001-11-09 김순택 반투과형 액정표시장치
KR20070031507A (ko) * 2005-09-14 2007-03-20 비오이 하이디스 테크놀로지 주식회사 컬러 액정 표시 장치
KR20080085723A (ko) * 2007-03-19 2008-09-24 소니 가부시끼 가이샤 광학 시트 조합체, 면 발광 장치 및 액정 표시 장치
KR20100029633A (ko) * 2008-09-08 2010-03-17 삼성전자주식회사 능동형 반투과 소자를 구비하는 디스플레이 장치

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010099533A (ko) * 2000-04-27 2001-11-09 김순택 반투과형 액정표시장치
KR20070031507A (ko) * 2005-09-14 2007-03-20 비오이 하이디스 테크놀로지 주식회사 컬러 액정 표시 장치
KR20080085723A (ko) * 2007-03-19 2008-09-24 소니 가부시끼 가이샤 광학 시트 조합체, 면 발광 장치 및 액정 표시 장치
KR20100029633A (ko) * 2008-09-08 2010-03-17 삼성전자주식회사 능동형 반투과 소자를 구비하는 디스플레이 장치

Also Published As

Publication number Publication date
KR20110138585A (ko) 2011-12-28
WO2011162483A2 (ko) 2011-12-29

Similar Documents

Publication Publication Date Title
WO2011162483A3 (ko) 스위칭 기능을 구비한 엘시디 백라이트 유닛
TWI321694B (en) Backlight module and liquid crystal display module
US8920018B2 (en) Front light module
WO2010035566A1 (ja) 照明装置、表示装置、及びテレビ受信装置
TWI697714B (zh) 背光單元和包含其的液晶顯示裝置
TW200735160A (en) Backlight for liquid crystal display device
TW200708853A (en) Light-guide plate and the backlight module having the same
JP5290435B2 (ja) 調光装置および画像表示装置
US8780026B2 (en) Transflective display apparatus
US20120140513A1 (en) Light guide plate, light guide unit, lighting device, and display device
WO2011077870A1 (ja) 液晶表示装置、照明装置ユニットおよび太陽電池
WO2016129514A1 (ja) 照明装置及び表示装置
TW200710470A (en) Controlling shape and direction of light
WO2008096423A1 (ja) 光学シートとそれを用いたバックライトユニット及びディスプレイ
JP2009500671A5 (ko)
JP2012104342A (ja) 面照明装置
US10379400B2 (en) Optical member and backlight unit including same
KR20190118698A (ko) 백라이트 유닛, 백라이트 유닛을 포함하는 표시 장치 및 표시 장치를 제조하는 방법
CN102635815A (zh) 背光模块
CN103511920B (zh) 背光模块及其显示设备
TWI468796B (zh) 分區發光之背光模組
TWM358987U (en) Light guide panel with pattern switching apparatus
TW200736745A (en) Backlight module and display module and electronic device utilizing the same
CN203836857U (zh) 背光源及显示装置
KR102118080B1 (ko) 직하형 백라이트 유닛을 구비한 표시장치 및 그 제조방법

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11798318

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11798318

Country of ref document: EP

Kind code of ref document: A2