KR101039608B1 - 백라이트 유닛 및 디스플레이 장치 - Google Patents

백라이트 유닛 및 디스플레이 장치 Download PDF

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Publication number
KR101039608B1
KR101039608B1 KR1020100041816A KR20100041816A KR101039608B1 KR 101039608 B1 KR101039608 B1 KR 101039608B1 KR 1020100041816 A KR1020100041816 A KR 1020100041816A KR 20100041816 A KR20100041816 A KR 20100041816A KR 101039608 B1 KR101039608 B1 KR 101039608B1
Authority
KR
South Korea
Prior art keywords
light emitting
light
assembly
emitting module
guide plate
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
KR1020100041816A
Other languages
English (en)
Korean (ko)
Inventor
이금태
김민상
김문정
박성용
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 KR1020100041816A priority Critical patent/KR101039608B1/ko
Priority to EP11160672A priority patent/EP2385514A1/en
Priority to CN201110097728.7A priority patent/CN102235624B/zh
Priority to US13/087,421 priority patent/US8212766B2/en
Priority to JP2011098108A priority patent/JP5769485B2/ja
Application granted granted Critical
Publication of KR101039608B1 publication Critical patent/KR101039608B1/ko
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Led Device Packages (AREA)
KR1020100041816A 2010-05-04 2010-05-04 백라이트 유닛 및 디스플레이 장치 Expired - Fee Related KR101039608B1 (ko)

Priority Applications (5)

Application Number Priority Date Filing Date Title
KR1020100041816A KR101039608B1 (ko) 2010-05-04 2010-05-04 백라이트 유닛 및 디스플레이 장치
EP11160672A EP2385514A1 (en) 2010-05-04 2011-03-31 Backlight unit and display device
CN201110097728.7A CN102235624B (zh) 2010-05-04 2011-04-14 背光单元和显示装置
US13/087,421 US8212766B2 (en) 2010-05-04 2011-04-15 Backlight unit and display device
JP2011098108A JP5769485B2 (ja) 2010-05-04 2011-04-26 バックライトユニット及び表示装置

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
KR101039608B1 true KR101039608B1 (ko) 2011-06-09

Family

ID=44312702

Family Applications (1)

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

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
CN110646984A (zh) * 2019-03-26 2020-01-03 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

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20070077272A (ko) * 2006-01-23 2007-07-26 삼성전자주식회사 광발생 장치 및 이를 갖는 액정 표시 장치
JP2008181749A (ja) * 2007-01-24 2008-08-07 Sony Corp 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
KR20090071488A (ko) * 2007-12-27 2009-07-01 삼성전기주식회사 액정표시장치용 백라이트 유닛

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
JP5103286B2 (ja) * 2007-06-12 2012-12-19 富士フイルム株式会社 バックライトユニット及び液晶表示装置
CN101680636B (zh) * 2007-07-27 2011-12-07 夏普株式会社 照明装置和液晶显示装置
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
US8368729B2 (en) * 2007-11-22 2013-02-05 Sharp Kabushiki Kaisha Display device
CN101896765B (zh) * 2008-02-05 2012-07-04 夏普株式会社 照明装置和液晶显示装置
JP2009204825A (ja) * 2008-02-27 2009-09-10 Hitachi Displays Ltd 表示装置
JP2009265634A (ja) * 2008-03-31 2009-11-12 Fujifilm Corp 液晶表示装置
EP2264687A4 (en) * 2008-03-31 2011-10-19 Sharp Kk DISPLAY DEVICE
KR101565934B1 (ko) * 2008-05-23 2015-11-06 삼성디스플레이 주식회사 백라이트 어셈블리 및 이를 갖는 표시장치
WO2009145548A2 (en) * 2008-05-27 2009-12-03 Lg Electronics Inc. Led back-light unit and liquid crystal display device using the same
US8797234B2 (en) * 2008-06-26 2014-08-05 Sharp Kabushiki Kaisha Display device including light-transmitting cover with lens portion and electronic device including same
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
WO2010041498A1 (ja) * 2008-10-10 2010-04-15 シャープ株式会社 照明装置、表示装置、及びテレビ受信装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20070077272A (ko) * 2006-01-23 2007-07-26 삼성전자주식회사 광발생 장치 및 이를 갖는 액정 표시 장치
JP2008181749A (ja) * 2007-01-24 2008-08-07 Sony Corp 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
KR20090071488A (ko) * 2007-12-27 2009-07-01 삼성전기주식회사 액정표시장치용 백라이트 유닛

Also Published As

Publication number Publication date
CN102235624A (zh) 2011-11-09
EP2385514A1 (en) 2011-11-09
US20110241980A1 (en) 2011-10-06
US8212766B2 (en) 2012-07-03
JP2011238608A (ja) 2011-11-24
JP5769485B2 (ja) 2015-08-26

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