TWI367354B - Light guide panel for lcd back light unit and lcd back light unit thereby - Google Patents

Light guide panel for lcd back light unit and lcd back light unit thereby

Info

Publication number
TWI367354B
TWI367354B TW096145056A TW96145056A TWI367354B TW I367354 B TWI367354 B TW I367354B TW 096145056 A TW096145056 A TW 096145056A TW 96145056 A TW96145056 A TW 96145056A TW I367354 B TWI367354 B TW I367354B
Authority
TW
Taiwan
Prior art keywords
lcd back
light unit
back light
guide panel
unit
Prior art date
Application number
TW096145056A
Other languages
English (en)
Other versions
TW200918973A (en
Inventor
O Yong Jeong
Seong Hoon Lee
Man Suk Kim
Original Assignee
Cheil Ind Inc
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 Cheil Ind Inc filed Critical Cheil Ind Inc
Publication of TW200918973A publication Critical patent/TW200918973A/zh
Application granted granted Critical
Publication of TWI367354B publication Critical patent/TWI367354B/zh

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
    • G02B6/0035—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
    • G02B6/0058—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
    • G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide
    • 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
    • G02B6/0045—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 by shaping at least a portion of the light guide
    • G02B6/0046—Tapered light guide, e.g. wedge-shaped 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)
  • Optical Elements Other Than Lenses (AREA)
TW096145056A 2007-10-30 2007-11-26 Light guide panel for lcd back light unit and lcd back light unit thereby TWI367354B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020070109793A KR100932304B1 (ko) 2007-10-30 2007-10-30 배면에 비대칭 프리즘을 구비하는 백라이트 유닛용 도광판및 이를 이용한 액정표시장치

Publications (2)

Publication Number Publication Date
TW200918973A TW200918973A (en) 2009-05-01
TWI367354B true TWI367354B (en) 2012-07-01

Family

ID=40591211

Family Applications (1)

Application Number Title Priority Date Filing Date
TW096145056A TWI367354B (en) 2007-10-30 2007-11-26 Light guide panel for lcd back light unit and lcd back light unit thereby

Country Status (4)

Country Link
KR (1) KR100932304B1 (zh)
CN (1) CN101842738B (zh)
TW (1) TWI367354B (zh)
WO (1) WO2009057844A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9575238B2 (en) 2014-05-05 2017-02-21 Au Optronics Corporation Back light module

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KR20160105527A (ko) 2008-07-10 2016-09-06 쓰리엠 이노베이티브 프로퍼티즈 컴파니 점탄성 도광체
KR20110043732A (ko) 2008-08-08 2011-04-27 쓰리엠 이노베이티브 프로퍼티즈 컴파니 광을 처리하기 위한 점탄성층을 갖는 도광체
KR101285635B1 (ko) * 2009-07-30 2013-07-12 엘지디스플레이 주식회사 도광판 및 이를 포함하는 액정표시장치
KR101047754B1 (ko) * 2009-08-21 2011-07-07 희성전자 주식회사 측면 조광형 백라이트 장치
KR101054385B1 (ko) * 2009-11-19 2011-08-04 주식회사 엘엠에스 도광판 및 이를 구비하는 백라이트 유닛
EP2534509B1 (en) * 2010-02-10 2019-07-24 3M Innovative Properties Company Illumination device having viscoelastic layer
EP3557310A1 (en) 2010-11-19 2019-10-23 RealD Spark, LLC Directional flat illuminators
US20140041205A1 (en) 2010-11-19 2014-02-13 Reald Inc. Method of manufacturing directional backlight apparatus and directional structured optical film
US9436015B2 (en) 2012-12-21 2016-09-06 Reald Inc. Superlens component for directional display
KR101948169B1 (ko) * 2011-12-23 2019-02-14 엘지디스플레이 주식회사 백라이트 유닛과 이를 이용한 액정표시장치
EP4123348B1 (en) 2012-05-18 2024-04-10 RealD Spark, LLC Controlling light sources of a directional backlight
EP2850488A4 (en) 2012-05-18 2016-03-02 Reald Inc DIRECTIONAL BACK LIGHTING
JP6308630B2 (ja) 2012-05-18 2018-04-11 リアルディー スパーク エルエルシー 指向性照明導波路配置
US9350980B2 (en) 2012-05-18 2016-05-24 Reald Inc. Crosstalk suppression in a directional backlight
WO2013173776A1 (en) 2012-05-18 2013-11-21 Reald Inc. Control system for a directional light source
US9678267B2 (en) 2012-05-18 2017-06-13 Reald Spark, Llc Wide angle imaging directional backlights
US9235057B2 (en) 2012-05-18 2016-01-12 Reald Inc. Polarization recovery in a directional display device
US9188731B2 (en) 2012-05-18 2015-11-17 Reald Inc. Directional backlight
CN102853336A (zh) * 2012-08-21 2013-01-02 深圳市华星光电技术有限公司 背光模组
EP2904778B1 (en) 2012-10-02 2020-05-27 RealD Spark, LLC Temporally multiplexed display with landscape and portrait operation modes
KR101481677B1 (ko) 2012-11-30 2015-01-13 엘지디스플레이 주식회사 백 라이트 유닛과 이를 포함하는 액정표시장치 및 백라이트 유닛의 제조방법
CN105324605B (zh) * 2013-02-22 2020-04-28 瑞尔D斯帕克有限责任公司 定向背光源
KR102047229B1 (ko) * 2013-05-28 2019-11-21 엘지디스플레이 주식회사 액정표시장치
WO2015073438A1 (en) 2013-11-15 2015-05-21 Reald Inc. Directional backlights with light emitting element packages
TWI483011B (zh) * 2014-03-21 2015-05-01 Univ Nat Taiwan Normal 雙面具有微結構之光學膜
CN104776363A (zh) * 2015-04-28 2015-07-15 京东方科技集团股份有限公司 一种背光模组及显示装置
WO2017035298A1 (en) * 2015-08-26 2017-03-02 3M Innovative Properties Company Collimating step-wedge light guide
WO2017074951A1 (en) 2015-10-26 2017-05-04 Reald Inc. Intelligent privacy system, apparatus, and method thereof
WO2017083583A1 (en) 2015-11-13 2017-05-18 Reald Spark, Llc Surface features for imaging directional backlights
WO2017120247A1 (en) 2016-01-05 2017-07-13 Reald Spark, Llc Gaze correction of multi-view images
EP3458897A4 (en) 2016-05-19 2019-11-06 RealD Spark, LLC DIRECTIONALLY WIDE IMAGING IMAGING BACKLIGHTS
WO2017205183A1 (en) 2016-05-23 2017-11-30 Reald Spark, Llc Wide angle imaging directional backlights
KR102664468B1 (ko) * 2017-01-13 2024-05-08 삼성디스플레이 주식회사 액정 표시 장치
CN111183405A (zh) 2017-08-08 2020-05-19 瑞尔D斯帕克有限责任公司 调整头部区域的数字表示
TW201921060A (zh) 2017-09-15 2019-06-01 美商瑞爾Ｄ斯帕克有限責任公司 用於可切換定向顯示器的光學堆疊結構
JP7291444B2 (ja) 2018-01-25 2023-06-15 リアルディー スパーク エルエルシー ディスプレイデバイスおよび視野角制御光学素子
CN111919162B (zh) 2018-01-25 2024-05-24 瑞尔D斯帕克有限责任公司 用于隐私显示器的触摸屏
KR20200101722A (ko) * 2019-02-20 2020-08-28 코닝 인코포레이티드 발광다이오드 장치용 광학 구조물 및 이를 구비하는 조명용 발광다이오드 장치

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CN100591989C (zh) * 2002-11-06 2010-02-24 夏普株式会社 照明装置、具备该装置的图像显示装置和导光体
US7478942B2 (en) * 2003-01-23 2009-01-20 Samsung Electronics Co., Ltd. Light guide plate with light reflection pattern
CN100383639C (zh) * 2003-09-06 2008-04-23 鸿富锦精密工业（深圳）有限公司 背光模组
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JP2006040710A (ja) * 2004-07-27 2006-02-09 Nissen Chemitec Corp 導光板および該導光板を用いた面型照明装置
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9575238B2 (en) 2014-05-05 2017-02-21 Au Optronics Corporation Back light module

Also Published As

Publication number Publication date
KR100932304B1 (ko) 2009-12-16
TW200918973A (en) 2009-05-01
CN101842738A (zh) 2010-09-22
WO2009057844A1 (en) 2009-05-07
KR20090043959A (ko) 2009-05-07
CN101842738B (zh) 2012-06-20

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees