KR101824040B1 - 백라이트 유닛 및 표시 장치 - Google Patents

백라이트 유닛 및 표시 장치 Download PDF

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Publication number
KR101824040B1
KR101824040B1 KR1020110076205A KR20110076205A KR101824040B1 KR 101824040 B1 KR101824040 B1 KR 101824040B1 KR 1020110076205 A KR1020110076205 A KR 1020110076205A KR 20110076205 A KR20110076205 A KR 20110076205A KR 101824040 B1 KR101824040 B1 KR 101824040B1
Authority
KR
South Korea
Prior art keywords
light source
light
guide plate
groove
light guide
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.)
Expired - Fee Related
Application number
KR1020110076205A
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English (en)
Korean (ko)
Other versions
KR20130014224A (ko
Inventor
서정인
김민상
Original Assignee
엘지이노텍 주식회사
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 엘지이노텍 주식회사 filed Critical 엘지이노텍 주식회사
Priority to KR1020110076205A priority Critical patent/KR101824040B1/ko
Priority to US13/368,673 priority patent/US8858011B2/en
Priority to TW101104334A priority patent/TWI569070B/zh
Priority to JP2012028753A priority patent/JP6163290B2/ja
Priority to CN201210034179.3A priority patent/CN102900999B/zh
Priority to EP12160172.8A priority patent/EP2551582A3/en
Publication of KR20130014224A publication Critical patent/KR20130014224A/ko
Application granted granted Critical
Publication of KR101824040B1 publication Critical patent/KR101824040B1/ko
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/002—Means for improving the coupling-in of light from the light source into 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, e.g. with collimating, focussing or diverging surfaces
    • G02B6/0021—Means for improving the coupling-in of light from the light source into 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, e.g. with collimating, focussing or diverging surfaces for housing at least a part of the light source, e.g. by forming holes or recesses
    • 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
    • G02B6/005—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
    • G02B6/0055—Reflecting element, sheet or layer
    • 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
    • G02B6/0066—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 characterised by the light source being coupled to the light guide
    • G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
    • 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
    • G02B6/0066—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 characterised by the light source being coupled to the light guide
    • G02B6/0073—Light emitting diode [LED]

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)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
KR1020110076205A 2011-07-29 2011-07-29 백라이트 유닛 및 표시 장치 Expired - Fee Related KR101824040B1 (ko)

Priority Applications (6)

Application Number Priority Date Filing Date Title
KR1020110076205A KR101824040B1 (ko) 2011-07-29 2011-07-29 백라이트 유닛 및 표시 장치
US13/368,673 US8858011B2 (en) 2011-07-29 2012-02-08 Backlight unit and display apparatus using the same
TW101104334A TWI569070B (zh) 2011-07-29 2012-02-10 背光單元及使用該背光單元的顯示設備
JP2012028753A JP6163290B2 (ja) 2011-07-29 2012-02-13 バックライトユニット及びこれを用いたディスプレイ装置
CN201210034179.3A CN102900999B (zh) 2011-07-29 2012-02-15 背光单元及使用该背光单元的显示装置
EP12160172.8A EP2551582A3 (en) 2011-07-29 2012-03-19 Backlight unit and display apparatus using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110076205A KR101824040B1 (ko) 2011-07-29 2011-07-29 백라이트 유닛 및 표시 장치

Publications (2)

Publication Number Publication Date
KR20130014224A KR20130014224A (ko) 2013-02-07
KR101824040B1 true KR101824040B1 (ko) 2018-01-31

Family

ID=45841375

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020110076205A Expired - Fee Related KR101824040B1 (ko) 2011-07-29 2011-07-29 백라이트 유닛 및 표시 장치

Country Status (6)

Country Link
US (1) US8858011B2 (enExample)
EP (1) EP2551582A3 (enExample)
JP (1) JP6163290B2 (enExample)
KR (1) KR101824040B1 (enExample)
CN (1) CN102900999B (enExample)
TW (1) TWI569070B (enExample)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103597822A (zh) * 2011-06-06 2014-02-19 富士胶片株式会社 图像加工装置、复眼摄像装置、图像加工方法及程序
CN202165943U (zh) * 2011-07-21 2012-03-14 北京京东方光电科技有限公司 一种背光源及显示装置
US8801259B2 (en) * 2012-03-30 2014-08-12 Shenzhen China Star Optoelectronics Technology Co., Ltd. Light emitting diode light bar structure and backlight module
TWI561897B (en) * 2013-07-17 2016-12-11 Radiant Opto Electronics Corp Backlight module and liquid crystal display
KR102087023B1 (ko) 2013-07-29 2020-03-11 삼성디스플레이 주식회사 바텀샤시, 이를 제조하는 방법 및 이를 포함하는 표시장치
KR102148718B1 (ko) 2013-12-18 2020-08-27 삼성전자주식회사 디스플레이 기기
KR20160007695A (ko) 2014-06-24 2016-01-21 삼성디스플레이 주식회사 백라이트 어셈블리 및 그를 포함하는 표시장치
KR102652314B1 (ko) * 2016-12-26 2024-03-29 엘지디스플레이 주식회사 백라이트 유닛 및 이를 포함하는 표시장치
CN109613758A (zh) * 2019-02-02 2019-04-12 京东方科技集团股份有限公司 背光模组和显示装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005085580A (ja) * 2003-09-08 2005-03-31 Sony Corp 面照明装置及び導光板
JP2010217349A (ja) * 2009-03-13 2010-09-30 Hitachi Displays Ltd 液晶表示装置

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GB2340280A (en) * 1998-08-03 2000-02-16 Lite On Electronics Inc Grating structure for lightguide of a display backlight
US7438429B2 (en) * 2005-12-22 2008-10-21 Fujifilm Corporation Planar lighting device with transmittance adjuster and liquid crystal display device using the same
KR100780205B1 (ko) * 2006-04-21 2007-11-27 삼성전기주식회사 액정표시장치용 백라이트 유닛
CN101126866B (zh) * 2006-08-17 2010-12-29 奇美电子股份有限公司 直下式背光模块及包含该背光模块的液晶显示装置
US20080094853A1 (en) * 2006-10-20 2008-04-24 Pixtronix, Inc. Light guides and backlight systems incorporating light redirectors at varying densities
CN100582823C (zh) * 2006-12-25 2010-01-20 鸿富锦精密工业（深圳）有限公司 导光板及背光模组
CN101266354B (zh) * 2007-03-15 2013-09-18 群创光电股份有限公司 背光模组及其应用装置
CN101290428A (zh) * 2007-04-18 2008-10-22 奇美电子股份有限公司 使显示器具有立体成像功能的背光模组及其导光板
CN101206280A (zh) * 2007-12-20 2008-06-25 清华大学 导光板及使用该导光板的背光模组
TWI373642B (en) * 2008-07-02 2012-10-01 Au Optronics Corp Light guide plate and backlight module using the light guide plate
KR20100054209A (ko) * 2008-11-14 2010-05-25 엘지이노텍 주식회사 액정표시장치 및 도광판의 제조방법
JP2010177085A (ja) * 2009-01-30 2010-08-12 Hitachi Ltd バックライトユニットおよびそれを用いた映像表示装置
TWI400496B (zh) * 2009-06-15 2013-07-01 Radiant Opto Electronics Corp 導光板與背光模組
CN102472915B (zh) * 2009-08-27 2015-01-21 Lg电子株式会社 背光单元和显示装置
JP2011076803A (ja) * 2009-09-29 2011-04-14 Seiko Instruments Inc 照明装置及びこれを用いた表示装置
TW201122574A (en) * 2009-12-23 2011-07-01 Global Lighting Technology Inc Light guide panel, backlight module and light guiding method
US20120300135A1 (en) * 2010-01-04 2012-11-29 Sharp Kabushiki Kaisha Lighting device, display device and television receiver

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005085580A (ja) * 2003-09-08 2005-03-31 Sony Corp 面照明装置及び導光板
JP2010217349A (ja) * 2009-03-13 2010-09-30 Hitachi Displays Ltd 液晶表示装置

Also Published As

Publication number Publication date
CN102900999A (zh) 2013-01-30
TWI569070B (zh) 2017-02-01
CN102900999B (zh) 2017-04-26
KR20130014224A (ko) 2013-02-07
US8858011B2 (en) 2014-10-14
EP2551582A3 (en) 2018-01-17
EP2551582A2 (en) 2013-01-30
JP2013033709A (ja) 2013-02-14
US20120140443A1 (en) 2012-06-07
TW201305682A (zh) 2013-02-01
JP6163290B2 (ja) 2017-07-12

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