FR2887995B1 - Feuille prismatique, unite de retroeclairage utilisant celle-ci et dispositif d'affichage a cristaux liquides comportant l'unite de retroeclairage - Google Patents

Feuille prismatique, unite de retroeclairage utilisant celle-ci et dispositif d'affichage a cristaux liquides comportant l'unite de retroeclairage

Info

Publication number
FR2887995B1
FR2887995B1 FR0513132A FR0513132A FR2887995B1 FR 2887995 B1 FR2887995 B1 FR 2887995B1 FR 0513132 A FR0513132 A FR 0513132A FR 0513132 A FR0513132 A FR 0513132A FR 2887995 B1 FR2887995 B1 FR 2887995B1
Authority
FR
France
Prior art keywords
backlight unit
liquid crystal
display device
crystal display
same
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
FR0513132A
Other languages
English (en)
Other versions
FR2887995A1 (fr
Inventor
Hoe Sup Soh
Man Hoan Lee
Ji Su Yoon
Sung Keun Lee
Jin Hyuk Kwon
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 FR2887995A1 publication Critical patent/FR2887995A1/fr
Application granted granted Critical
Publication of FR2887995B1 publication Critical patent/FR2887995B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0053—Prismatic sheet or layer; Brightness enhancement element, sheet or layer
    • 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
    • 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)
  • 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)
  • Polarising Elements (AREA)
  • Optical Elements Other Than Lenses (AREA)
FR0513132A 2005-06-29 2005-12-22 Feuille prismatique, unite de retroeclairage utilisant celle-ci et dispositif d'affichage a cristaux liquides comportant l'unite de retroeclairage Active FR2887995B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020050057012A KR101255296B1 (ko) 2005-06-29 2005-06-29 프리즘 시트와 이를 이용한 백 라이트 유닛

Publications (2)

Publication Number Publication Date
FR2887995A1 FR2887995A1 (fr) 2007-01-05
FR2887995B1 true FR2887995B1 (fr) 2011-04-15

Family

ID=37545154

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0513132A Active FR2887995B1 (fr) 2005-06-29 2005-12-22 Feuille prismatique, unite de retroeclairage utilisant celle-ci et dispositif d'affichage a cristaux liquides comportant l'unite de retroeclairage

Country Status (6)

Country Link
US (1) US7905647B2 (fr)
JP (1) JP2007011267A (fr)
KR (1) KR101255296B1 (fr)
CN (1) CN100443989C (fr)
DE (1) DE102005061340B9 (fr)
FR (1) FR2887995B1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4155310B2 (ja) * 2006-06-02 2008-09-24 ソニー株式会社 バックライト装置と液晶表示装置および液晶表示装置を使用した電子機器
JP4984058B2 (ja) * 2007-05-25 2012-07-25 スタンレー電気株式会社 光源装置及び車両前照灯
JP2011158631A (ja) * 2010-01-29 2011-08-18 Dainippon Printing Co Ltd 光学シート、バックライトユニット、および液晶表示装置
BR112013010072A2 (pt) * 2010-10-28 2019-09-24 Koninl Philips Electronics Nv dispositivo de iluminação, luminária e ssitema de iluminação
US9632326B2 (en) 2010-10-28 2017-04-25 Philips Lighting Holding B.V. Collimator comprising a prismatic layer stack, and lighting unit comprising such collimator
CN104335109B (zh) * 2011-11-23 2018-01-12 3M创新有限公司 具有不对称漫射体的光学叠堆
US8746944B2 (en) 2011-11-28 2014-06-10 Blackberry Limited Light guide apparatus having a light source and a reflector
CN108692221B (zh) * 2017-04-11 2020-09-11 台湾扬昕股份有限公司 光源模块及其棱镜片
US11054697B2 (en) * 2017-11-21 2021-07-06 Panasonic Liquid Crystal Display Co., Ltd. Liquid crystal display device with plural display panels and surface irregularities
CN111164465B (zh) 2018-02-28 2022-07-12 株式会社Lg化学 视角补偿膜、包括其的偏光板和包括其的显示装置
CN108931836B (zh) * 2018-08-17 2020-07-03 京东方科技集团股份有限公司 导光板及确定方法、背光源、显示装置、可读存储介质
CN208670636U (zh) * 2018-09-12 2019-03-29 广州光联电子科技有限公司 一种led光源的光学系统
WO2020130497A1 (fr) 2018-12-20 2020-06-25 Samsung Electronics Co., Ltd. Dispositif d'affichage
CN109613738A (zh) * 2019-02-26 2019-04-12 合肥惠科金扬科技有限公司 一种显示器及显示装置

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6942472U (de) 1969-10-31 1971-04-01 Mitsubishi Electric Corp Strombegrenzungselement
US6002829A (en) * 1992-03-23 1999-12-14 Minnesota Mining And Manufacturing Company Luminaire device
CA2097109C (fr) * 1992-06-01 2000-01-11 Shozo Kokawa Affichage a cristaux liquides
USRE37377E1 (en) * 1992-10-09 2001-09-18 Asahi Glass Company, Ltd. LCD device including an illumination device having a polarized light separating sheet between a light guide and the display
US6052164A (en) * 1993-03-01 2000-04-18 3M Innovative Properties Company Electroluminescent display with brightness enhancement
JPH085805A (ja) * 1994-06-20 1996-01-12 Konica Corp 集光シート
US5808784A (en) * 1994-09-06 1998-09-15 Dai Nippon Printing Co., Ltd. Lens array sheet surface light source, and transmission type display device
US5980054A (en) * 1996-05-09 1999-11-09 Matsushita Electric Industrial Co., Ltd. Panel-form illuminating system
JP3271695B2 (ja) * 1996-09-20 2002-04-02 シャープ株式会社 バックライト光源および液晶表示装置
JPH10206611A (ja) * 1997-01-23 1998-08-07 Goyo Paper Working Co Ltd 四角錐構造を有するプラスチック光学シート
JP3434701B2 (ja) 1998-04-06 2003-08-11 大日本印刷株式会社 偏光分離シート、光学シート積層体、面光源装置、及び、透過型表示装置
JP2000122046A (ja) * 1998-10-16 2000-04-28 Sharp Corp 液晶表示装置
US6515785B1 (en) * 1999-04-22 2003-02-04 3M Innovative Properties Company Optical devices using reflecting polarizing materials
JP3457591B2 (ja) * 1999-10-08 2003-10-20 インターナショナル・ビジネス・マシーンズ・コーポレーション 液晶表示装置
JP5027969B2 (ja) * 2001-08-27 2012-09-19 大日本印刷株式会社 二次元視野拡大部材の製造方法
EP2397875A3 (fr) * 2001-12-14 2012-05-02 QUALCOMM MEMS Technologies, Inc. Système d'éclairage uniforme
JP4122808B2 (ja) 2002-03-26 2008-07-23 セイコーエプソン株式会社 液晶表示装置および電子機器
KR100873067B1 (ko) * 2002-07-11 2008-12-11 삼성전자주식회사 백 라이트 어셈블리 및 이를 갖는 액정 표시 장치
TWI225139B (en) * 2002-07-26 2004-12-11 Hannstar Display Corp Panel light source device and back light module for liquid crystal device
US7195390B2 (en) * 2002-11-29 2007-03-27 Hon Hai Precision Ind. Co., Ltd. Backlight system and light guide plate used therein
TW200411279A (en) * 2002-12-27 2004-07-01 Benq Corp Straight-down backlight module
KR100487438B1 (ko) * 2002-12-31 2005-05-03 엘지.필립스 엘시디 주식회사 액정표시장치
CN100487537C (zh) * 2004-03-05 2009-05-13 友达光电股份有限公司 直下式背光模块及其组装方法
US7572490B2 (en) * 2004-04-27 2009-08-11 Samsung Electronics Co., Ltd. Brightness enhancement film for liquid crystal display and manufacturing method thereof
KR101028926B1 (ko) * 2004-06-30 2011-04-12 엘지디스플레이 주식회사 백 라이트 유닛
US20060182409A1 (en) * 2005-02-11 2006-08-17 Eastman Kodak Company Optical films of differing refractive indices

Also Published As

Publication number Publication date
DE102005061340A1 (de) 2007-01-04
CN100443989C (zh) 2008-12-17
FR2887995A1 (fr) 2007-01-05
JP2007011267A (ja) 2007-01-18
DE102005061340B9 (de) 2012-04-19
DE102005061340B4 (de) 2012-01-12
US20070002586A1 (en) 2007-01-04
CN1888959A (zh) 2007-01-03
KR20070001492A (ko) 2007-01-04
KR101255296B1 (ko) 2013-04-15
US7905647B2 (en) 2011-03-15

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