TW200727047A - Flat lighting source, luminance correcting circuit, luminance correcting method and liquid crystal display - Google Patents

Flat lighting source, luminance correcting circuit, luminance correcting method and liquid crystal display

Info

Publication number
TW200727047A
TW200727047A TW095142426A TW95142426A TW200727047A TW 200727047 A TW200727047 A TW 200727047A TW 095142426 A TW095142426 A TW 095142426A TW 95142426 A TW95142426 A TW 95142426A TW 200727047 A TW200727047 A TW 200727047A
Authority
TW
Taiwan
Prior art keywords
luminance
luminance correcting
led
leds
light emitted
Prior art date
Application number
TW095142426A
Other languages
English (en)
Inventor
Yuji Kondo
Nobuaki Honbo
Original Assignee
Nec Lcd Technologies 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 Nec Lcd Technologies Ltd filed Critical Nec Lcd Technologies Ltd
Publication of TW200727047A publication Critical patent/TW200727047A/zh

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
    • G09G3/342—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
    • G09G3/3426—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines the different display panel areas being distributed in two dimensions, e.g. matrix
    • 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
    • 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
    • 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
    • G02F1/133603—Direct backlight with LEDs
    • 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
    • G02F1/133612—Electrical details
    • 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
    • G09G2320/04—Maintaining the quality of display appearance
    • G09G2320/041—Temperature compensation
    • 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
    • G09G2320/0633—Adjustment of display parameters for control of overall brightness by amplitude modulation of the brightness of the illumination source
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Mathematical Physics (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal (AREA)
  • Planar Illumination Modules (AREA)
TW095142426A 2005-11-22 2006-11-16 Flat lighting source, luminance correcting circuit, luminance correcting method and liquid crystal display TW200727047A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005337871A JP2007141799A (ja) 2005-11-22 2005-11-22 面照明光源、該面照明光源に用いられる輝度補正回路及び輝度補正方法

Publications (1)

Publication Number Publication Date
TW200727047A true TW200727047A (en) 2007-07-16

Family

ID=38053258

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095142426A TW200727047A (en) 2005-11-22 2006-11-16 Flat lighting source, luminance correcting circuit, luminance correcting method and liquid crystal display

Country Status (5)

Country Link
US (1) US20070115685A1 (zh)
JP (1) JP2007141799A (zh)
KR (1) KR100854192B1 (zh)
CN (1) CN1971367A (zh)
TW (1) TW200727047A (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8811810B2 (en) 2011-02-08 2014-08-19 Alpha Networks Inc. Monitoring camera and operation method thereof

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US7878698B2 (en) * 2005-09-28 2011-02-01 Sharp Kabushiki Kaisha Backlight unit and liquid crystal display device
JP2008268642A (ja) * 2007-04-23 2008-11-06 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
TW200906221A (en) * 2007-07-19 2009-02-01 Aussmak Optoelectronic Corp Light emitting device and its calibrating and controlling method
CN100462780C (zh) * 2007-07-31 2009-02-18 友达光电股份有限公司 显示面板、包含其的光电装置及其驱动方法、制造方法
KR100907417B1 (ko) * 2007-08-08 2009-07-10 삼성에스디아이 주식회사 전자방출소자 및 이를 이용한 액정표시장치
KR101450143B1 (ko) * 2007-10-25 2014-10-14 삼성디스플레이 주식회사 타이밍 컨트롤러, 이를 포함하는 액정 표시 장치 및 액정표시 장치의 구동 방법
JP5266878B2 (ja) * 2008-05-28 2013-08-21 岩崎電気株式会社 面照明装置
US20100007588A1 (en) * 2008-07-09 2010-01-14 Adaptive Micro Systems Llc System and method for led degradation and temperature compensation
US20100109562A1 (en) * 2008-11-06 2010-05-06 StarChips Technology Inc. Backlight module and light-emitting device thereof
KR101577223B1 (ko) * 2009-06-03 2015-12-15 엘지디스플레이 주식회사 액정 표시장치
WO2011046552A1 (en) * 2009-10-14 2011-04-21 Hewlett-Packard Development Company, L.P. Stabilized light source having luminance feedback control
CN101697273B (zh) * 2009-10-29 2012-09-19 彩虹集团公司 使用led背光源的lcd亮度均匀性自动校正系统及校正方法
CN102136255B (zh) * 2010-01-27 2012-12-26 京东方科技集团股份有限公司 背光源的颜色补偿方法和装置
KR101013755B1 (ko) * 2010-02-02 2011-02-14 주식회사 삼광산전 정출력용 엘이디모듈 전원공급 컨버터
JP2012004190A (ja) * 2010-06-14 2012-01-05 Toshiba Corp Ｌｅｄ駆動装置
KR101101250B1 (ko) * 2011-06-16 2012-01-04 버스텍 주식회사 발광다이오드 어레이의 특성 불균일을 개선한 발광다이오드 표시 장치 및 그에 따른 표시 제어 방법
CN104157237B (zh) * 2014-07-18 2016-05-11 京东方科技集团股份有限公司 一种显示驱动电路及其驱动方法、显示装置
US10072830B2 (en) * 2016-05-06 2018-09-11 Hung Lin Uniform luminance light-emitting diode circuit board
CN105976767B (zh) * 2016-06-28 2019-06-21 凌云光技术集团有限责任公司 一种面光源亮度均匀性调节方法、装置及系统
CN107863065A (zh) * 2017-11-24 2018-03-30 京东方科技集团股份有限公司 像素单元电路、驱动方法和像素电路
CN109239980A (zh) * 2018-11-28 2019-01-18 厦门天马微电子有限公司 背光组件和显示装置
JP7303047B2 (ja) * 2019-06-27 2023-07-04 矢崎総業株式会社 発光装置及び色度ばらつき補正方法
CN113075525B (zh) * 2021-04-14 2022-03-22 东莞市谷麦光学科技有限公司 一种led分光站电压校正方法

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US6774578B2 (en) * 2000-09-19 2004-08-10 Semiconductor Energy Laboratory Co., Ltd. Self light emitting device and method of driving thereof
US6720942B2 (en) * 2002-02-12 2004-04-13 Eastman Kodak Company Flat-panel light emitting pixel with luminance feedback
GB2389951A (en) * 2002-06-18 2003-12-24 Cambridge Display Tech Ltd Display driver circuits for active matrix OLED displays
US7184009B2 (en) * 2002-06-21 2007-02-27 Nokia Corporation Display circuit with optical sensor
US7294816B2 (en) * 2003-12-19 2007-11-13 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. LED illumination system having an intensity monitoring system

Cited By (2)

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Publication number Priority date Publication date Assignee Title
US8811810B2 (en) 2011-02-08 2014-08-19 Alpha Networks Inc. Monitoring camera and operation method thereof
TWI455578B (zh) * 2011-02-08 2014-10-01 Alpha Networks Inc 監控攝影機及其操作方法

Also Published As

Publication number Publication date
KR100854192B1 (ko) 2008-08-26
US20070115685A1 (en) 2007-05-24
JP2007141799A (ja) 2007-06-07
KR20070054101A (ko) 2007-05-28
CN1971367A (zh) 2007-05-30

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