FR2893426B1 - Unite de retroeclairage et dispositif d'affichage a cristaux liquides utilisant celui-ci - Google Patents

Unite de retroeclairage et dispositif d'affichage a cristaux liquides utilisant celui-ci

Info

Publication number
FR2893426B1
FR2893426B1 FR0605128A FR0605128A FR2893426B1 FR 2893426 B1 FR2893426 B1 FR 2893426B1 FR 0605128 A FR0605128 A FR 0605128A FR 0605128 A FR0605128 A FR 0605128A FR 2893426 B1 FR2893426 B1 FR 2893426B1
Authority
FR
France
Prior art keywords
liquid crystal
display device
same
crystal display
backlight unit
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
FR0605128A
Other languages
English (en)
Other versions
FR2893426A1 (fr
Inventor
Sang Won Jung
Ki Won Kim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Display Co Ltd
Original Assignee
LG Philips LCD Co 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 LG Philips LCD Co Ltd filed Critical LG Philips LCD Co Ltd
Publication of FR2893426A1 publication Critical patent/FR2893426A1/fr
Application granted granted Critical
Publication of FR2893426B1 publication Critical patent/FR2893426B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • 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
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened surfaces
    • 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
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)
  • Light Guides In General And Applications Therefor (AREA)
FR0605128A 2005-11-16 2006-06-09 Unite de retroeclairage et dispositif d'affichage a cristaux liquides utilisant celui-ci Active FR2893426B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020050109704A KR101277917B1 (ko) 2005-11-16 2005-11-16 백라이트유닛과 이를 이용한 액정표시장치

Publications (2)

Publication Number Publication Date
FR2893426A1 FR2893426A1 (fr) 2007-05-18
FR2893426B1 true FR2893426B1 (fr) 2011-02-18

Family

ID=38001851

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0605128A Active FR2893426B1 (fr) 2005-11-16 2006-06-09 Unite de retroeclairage et dispositif d'affichage a cristaux liquides utilisant celui-ci

Country Status (5)

Country Link
US (1) US7898613B2 (fr)
JP (1) JP4744369B2 (fr)
KR (1) KR101277917B1 (fr)
CN (2) CN102278673B (fr)
FR (1) FR2893426B1 (fr)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090015748A (ko) * 2007-08-09 2009-02-12 삼성모바일디스플레이주식회사 백라이트 유닛 및 이를 채용한 화상 표시 장치
CN101630037B (zh) * 2008-07-18 2012-10-10 鸿富锦精密工业（深圳）有限公司 背光模组及其导光板
KR101607287B1 (ko) * 2008-11-07 2016-04-12 삼성디스플레이 주식회사 도광판, 이를 갖는 백라이트 어셈블리 및 표시장치
KR20100095812A (ko) * 2009-02-23 2010-09-01 삼성전자주식회사 백 라이트 유닛 및 이를 포함하는 액정표시장치
JP5382787B2 (ja) * 2009-06-05 2014-01-08 シチズン電子株式会社 面状光源及び液晶表示装置
KR101676870B1 (ko) * 2009-07-31 2016-11-16 엘지전자 주식회사 백라이트 유닛 및 그를 이용한 디스플레이 장치
TWI451168B (zh) 2010-09-09 2014-09-01 Au Optronics Corp 背光結構及其製造方法
CN101936509A (zh) * 2010-09-20 2011-01-05 友达光电股份有限公司 背光结构及其制造方法
KR101735673B1 (ko) 2010-12-23 2017-05-15 엘지이노텍 주식회사 조명 시스템
US9442240B2 (en) 2012-03-16 2016-09-13 Radiant Opto-Electronics Corporation Light guide plate and light source module
US9557469B2 (en) * 2012-03-16 2017-01-31 Radiant Opto-Electronics Corporation Light guide plate, backlight module and display device
US10281635B2 (en) * 2012-03-16 2019-05-07 Radiant Opto-Electronics (Suzhou) Co.,Ltd. Light guide plate, backlight module and display device
US9223079B2 (en) * 2012-03-16 2015-12-29 Radiant Opto-Electronics Corporation Light guide plate and backlight module
TWI481915B (zh) * 2013-08-20 2015-04-21 Radiant Opto Electronics Corp 具多向性結構之導光板
KR102075922B1 (ko) 2012-05-10 2020-02-11 엘지디스플레이 주식회사 도광판 및 이를 이용한 액정표시 장치
US20130329452A1 (en) * 2012-06-12 2013-12-12 Skc Haas Display Films Co., Ltd. Method for reducing hot spots in light guide plates
US20130329454A1 (en) * 2012-06-12 2013-12-12 Skc Haas Display Films Co., Ltd. Light guide plate having a one-dimensional micro-pattern in its mixing zone
KR101980698B1 (ko) * 2012-10-15 2019-05-22 삼성디스플레이 주식회사 프리즘 시트, 이를 포함하는 백라이트 유닛 및 그 제조 방법
CN104155799B (zh) * 2013-05-14 2016-11-23 群创光电股份有限公司 背光模块及显示装置
CN204302525U (zh) * 2015-01-04 2015-04-29 京东方光科技有限公司 导光板、背光源及显示装置
WO2017094209A1 (fr) * 2015-11-30 2017-06-08 パナソニックＩｐマネジメント株式会社 Dispositif d'affichage d'image et dispositif d'affichage tête haute équipé d'un dispositif d'affichage d'image
JP6808031B2 (ja) * 2016-10-11 2021-01-06 ラディアント オプト‐エレクトロニクス （スーチョウ） カンパニー リミテッド 導光板、バックライトモジュール及び表示装置
KR102400975B1 (ko) 2017-10-23 2022-05-23 삼성전자주식회사 디스플레이 장치
CN115220145A (zh) * 2022-08-22 2022-10-21 扬昕科技(苏州)有限公司 背光模块及导光板

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH063526A (ja) * 1992-06-18 1994-01-14 Fujitsu Ltd 照明装置
JP2830972B2 (ja) * 1995-03-06 1998-12-02 株式会社日立製作所 液晶表示装置
US6100952A (en) * 1997-06-04 2000-08-08 Korry Electronics Co. NVG-compatible AMLCD backlight having a ridged prismatic TIR with an embedded diffuser doped with an IR absorbing dye
JP3543654B2 (ja) * 1998-12-28 2004-07-14 株式会社エンプラス 導光板、サイドライト型面光源装置及び液晶表示装置
JP2002040260A (ja) 2000-07-25 2002-02-06 Asahi National Lighting Co Ltd 導光板
KR20010074133A (ko) * 2001-03-30 2001-08-04 고경진 백라이트용 도광판
JP4049624B2 (ja) 2001-07-27 2008-02-20 株式会社エンプラス 面光源装置、画像表示装置及び導光板
JP3828402B2 (ja) * 2001-11-08 2006-10-04 株式会社日立製作所 背面照明装置およびこれを用いた液晶表示装置並びに液晶表示装置の照明方法
TW566564U (en) 2003-01-29 2003-12-11 Hon Hai Prec Ind Co Ltd Back light module and liquid crystal display using the same
JP4085377B2 (ja) * 2003-03-27 2008-05-14 ミネベア株式会社 面状照明装置
JP2005071610A (ja) 2003-06-26 2005-03-17 Toyota Industries Corp 導光板及び面光源装置
JP2005063912A (ja) * 2003-08-20 2005-03-10 Toyota Industries Corp 導光板及びその製造方法
KR20050032838A (ko) * 2003-10-02 2005-04-08 엘지.필립스 엘시디 주식회사 액정표시장치용 백라이트 유닛

Also Published As

Publication number Publication date
FR2893426A1 (fr) 2007-05-18
JP2007141811A (ja) 2007-06-07
CN102278673B (zh) 2014-06-18
KR101277917B1 (ko) 2013-06-21
KR20070052087A (ko) 2007-05-21
US20070109464A1 (en) 2007-05-17
JP4744369B2 (ja) 2011-08-10
CN102278673A (zh) 2011-12-14
CN1967350A (zh) 2007-05-23
US7898613B2 (en) 2011-03-01

Similar Documents

Publication Publication Date Title
FR2893426B1 (fr) Unite de retroeclairage et dispositif d'affichage a cristaux liquides utilisant celui-ci
FR2895527B1 (fr) Unite de retroeclairage et dispositif d'affichage a cristaux liquides l'utilisant
FR2886442B1 (fr) Ensemble de retroeclairage pour dispositif d'affichage a cristaux liquides et dispositif d'affichage utilisant celui-ci
FR2887395B1 (fr) Dispositif d'affichage a cristaux liquides
GB2430071B (en) Backlight unit and liquid crystal display device having the same
FR2888030B1 (fr) Dispositif d'affichage a cristaux liquides
FR2895806B1 (fr) Dispositif d'affichage a cristaux liquides
FR2887995B1 (fr) Feuille prismatique, unite de retroeclairage utilisant celle-ci et dispositif d'affichage a cristaux liquides comportant l'unite de retroeclairage
FR2870013B1 (fr) Dispositif d'affichage a cristaux liquides a mode ips disposant d'un rapport de constraste ameliore
FR2903214B1 (fr) Dispositif d'affichage a cristaux liquides et ordinateur portable equipe de ce dernier.
FR2891376B1 (fr) Dispositif d'affichage a cristaux liquides,procede pour fabriquer celui-ci et structure d'espaceur de dispositif d'affichage
DE60314241D1 (de) Flüssigkristallanzeigevorrichtung
EP1816509A4 (fr) Dispositif d affichage à cristaux liquides et dispositif électronique utilisant ledit dispositif
NL1030715A1 (nl) Backlightsysteem en daarvan gebruikmakend vloeibaar kristalscherm.
FR2872594B1 (fr) Unite de retroeclairage et dispositif d'affichage a cristaux liquides munie d'une telle unite de retroeclairage
EP1817617A4 (fr) Plaque polarisante et dispositif d'écrane à cristaux liquides la comprenant
EP1956288A4 (fr) Dispositif de rétroéclairage et afficheur à cristaux liquides
FR2887643B1 (fr) Unite de retroeclairage et dispositif d'affichage a cristaux liquides l'utilisant.
FR2903203B1 (fr) Dispositif d'affichage a cristaux liquides
GB0422347D0 (en) Transflective liquid crystal display device
GB2420444B (en) Liquid crystal display device and portable display device
DE60324928D1 (de) Flüssigkristall-anzeigevorrichtung
NL1030209A1 (nl) Achtergrondverlichtingseenheid en vloeibaar-kristalscherminrichting welke van deze gebruikmaakt.
FR2855302B1 (fr) Afficheur a cristaux liquides
FR2856505B1 (fr) Dispositif d'affichage a cristaux liquides

Legal Events

Date Code Title Description
CD Change of name or company name
PLFP Fee payment

Year of fee payment: 11

PLFP Fee payment

Year of fee payment: 12

PLFP Fee payment

Year of fee payment: 13

PLFP Fee payment

Year of fee payment: 15

PLFP Fee payment

Year of fee payment: 16

PLFP Fee payment

Year of fee payment: 17

PLFP Fee payment

Year of fee payment: 18

PLFP Fee payment

Year of fee payment: 19