JP5769485B2 - バックライトユニット及び表示装置 - Google Patents

バックライトユニット及び表示装置 Download PDF

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Publication number
JP5769485B2
JP5769485B2 JP2011098108A JP2011098108A JP5769485B2 JP 5769485 B2 JP5769485 B2 JP 5769485B2 JP 2011098108 A JP2011098108 A JP 2011098108A JP 2011098108 A JP2011098108 A JP 2011098108A JP 5769485 B2 JP5769485 B2 JP 5769485B2
Authority
JP
Japan
Prior art keywords
light emitting
light
emitting element
guide plate
element module
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
JP2011098108A
Other languages
English (en)
Japanese (ja)
Other versions
JP2011238608A5 (enExample
JP2011238608A (ja
Inventor
今泰 李
今泰 李
成用 朴
成用 朴
旻相 金
旻相 金
文政 金
文政 金
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 Innotek Co Ltd
Original Assignee
LG Innotek 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 Innotek Co Ltd filed Critical LG Innotek Co Ltd
Publication of JP2011238608A publication Critical patent/JP2011238608A/ja
Publication of JP2011238608A5 publication Critical patent/JP2011238608A5/ja
Application granted granted Critical
Publication of JP5769485B2 publication Critical patent/JP5769485B2/ja
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3406—Control of illumination source
    • 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
    • G02B6/0075—Arrangements of multiple light guides
    • G02B6/0078—Side-by-side arrangements, e.g. for large area displays
    • G02B6/008—Side-by-side arrangements, e.g. for large area displays of the partially overlapping type
    • 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
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • G02B6/0031—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
    • G02B6/0033—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
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0083—Details of electrical connections of light sources to drivers, circuit boards, or the like
    • 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
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
    • 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
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • G02B6/0091—Positioning aspects of the light source relative to the light guide
    • 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
    • G02F1/133601—Illuminating devices for spatial active dimming
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0232—Special driving of display border areas
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0233—Improving the luminance or brightness uniformity across the screen
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Led Device Packages (AREA)
JP2011098108A 2010-05-04 2011-04-26 バックライトユニット及び表示装置 Expired - Fee Related JP5769485B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2010-0041816 2010-05-04
KR1020100041816A KR101039608B1 (ko) 2010-05-04 2010-05-04 백라이트 유닛 및 디스플레이 장치

Publications (3)

Publication Number Publication Date
JP2011238608A JP2011238608A (ja) 2011-11-24
JP2011238608A5 JP2011238608A5 (enExample) 2014-06-05
JP5769485B2 true JP5769485B2 (ja) 2015-08-26

Family

ID=44312702

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2011098108A Expired - Fee Related JP5769485B2 (ja) 2010-05-04 2011-04-26 バックライトユニット及び表示装置

Country Status (4)

Country Link
US (1) US8212766B2 (enExample)
EP (1) EP2385514A1 (enExample)
JP (1) JP5769485B2 (enExample)
KR (1) KR101039608B1 (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130099066A1 (en) * 2011-10-20 2013-04-25 Shih hsiang Chen Backplane, Back Light Module and of Backplane Stiffener Locking Method
KR101331815B1 (ko) 2012-03-16 2013-11-22 엘지디스플레이 주식회사 직하형 액정표시장치 및 직하형 액정표시장치 구동방법
US10378704B2 (en) 2017-10-05 2019-08-13 Christie Digital Systems Usa, Inc. LED module seam illumination
CN210894924U (zh) * 2019-03-26 2020-06-30 武汉华星光电技术有限公司 一种显示面板及显示装置
CN212460264U (zh) 2020-05-28 2021-02-02 京东方科技集团股份有限公司 背光灯板、背光模组及液晶显示器
US11662785B2 (en) * 2021-07-15 2023-05-30 Dell Products L.P. Managing thermal dissipation in a display of an information handling system

Family Cites Families (30)

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JPH06314069A (ja) * 1993-03-03 1994-11-08 Fujitsu Ltd 照明装置
JP2001066569A (ja) * 1999-08-27 2001-03-16 Hitachi Ltd 液晶表示用バックライト
US7001058B2 (en) * 2001-05-16 2006-02-21 Ben-Zion Inditsky Ultra-thin backlight
JP3850241B2 (ja) * 2001-07-19 2006-11-29 シャープ株式会社 照明装置およびそれを用いた液晶表示装置
KR100835005B1 (ko) * 2001-12-24 2008-06-04 엘지디스플레이 주식회사 백라이트 유닛
KR101094772B1 (ko) * 2004-06-30 2011-12-16 엘지디스플레이 주식회사 타일형 표시장치
US7311431B2 (en) * 2005-04-01 2007-12-25 Avago Technologies Ecbu Ip Pte Ltd Light-emitting apparatus having a plurality of adjacent, overlapping light-guide plates
KR200394888Y1 (ko) 2005-06-28 2005-09-06 주식회사 이너텍 엘이디 매트릭스를 이용한 휴대전화용 백라이트 구조체
KR100653070B1 (ko) * 2005-09-05 2006-12-01 삼성전자주식회사 액정표시장치
JP2007141715A (ja) 2005-11-21 2007-06-07 Sharp Corp Ｌｅｄバックライトユニット及び該ユニットを備える画像表示装置
KR101119180B1 (ko) * 2006-01-23 2012-03-20 삼성전자주식회사 광발생 장치 및 이를 갖는 액정 표시 장치
KR100770603B1 (ko) 2006-03-30 2007-10-29 서울반도체 주식회사 백라이트 유닛의 전류제어장치 및 방법
KR20070099942A (ko) * 2006-04-06 2007-10-10 삼성전자주식회사 액정표시장치
JP4264560B2 (ja) * 2007-01-24 2009-05-20 ソニー株式会社 バックライト装置、バックライト制御方法、および液晶表示装置
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JP4886038B2 (ja) * 2007-07-27 2012-02-29 シャープ株式会社 照明装置および液晶表示装置
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CN101868814B (zh) * 2007-11-22 2013-06-05 夏普株式会社 显示装置
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EP2241800A4 (en) * 2008-02-05 2011-01-26 Sharp Kk LIGHTING DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE
JP2009204825A (ja) * 2008-02-27 2009-09-10 Hitachi Displays Ltd 表示装置
CN101965604B (zh) * 2008-03-31 2012-12-12 夏普株式会社 显示装置
JP2009265634A (ja) * 2008-03-31 2009-11-12 Fujifilm Corp 液晶表示装置
KR101565934B1 (ko) * 2008-05-23 2015-11-06 삼성디스플레이 주식회사 백라이트 어셈블리 및 이를 갖는 표시장치
CN102047174B (zh) * 2008-05-27 2016-01-27 Lg电子株式会社 Led背光单元以及使用该led背光单元的液晶显示装置
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JP2010020961A (ja) * 2008-07-09 2010-01-28 Citizen Electronics Co Ltd 面状光源及び液晶表示装置
JP2010078690A (ja) 2008-09-24 2010-04-08 Pioneer Electronic Corp 表示装置、映像信号処理方法及び映像信号処理プログラム
JP5345361B2 (ja) * 2008-09-30 2013-11-20 昭和電工株式会社 表示装置及び発光装置
RU2468285C1 (ru) * 2008-10-10 2012-11-27 Шарп Кабусики Кайся Осветительное устройство, устройство отображения и телевизионный приемник

Also Published As

Publication number Publication date
US8212766B2 (en) 2012-07-03
EP2385514A1 (en) 2011-11-09
KR101039608B1 (ko) 2011-06-09
CN102235624A (zh) 2011-11-09
US20110241980A1 (en) 2011-10-06
JP2011238608A (ja) 2011-11-24

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