TW200622983A - Light source device - Google Patents

Light source device

Info

Publication number
TW200622983A
TW200622983A TW094131491A TW94131491A TW200622983A TW 200622983 A TW200622983 A TW 200622983A TW 094131491 A TW094131491 A TW 094131491A TW 94131491 A TW94131491 A TW 94131491A TW 200622983 A TW200622983 A TW 200622983A
Authority
TW
Taiwan
Prior art keywords
dimmer control
lamp
light sources
type light
source device
Prior art date
Application number
TW094131491A
Other languages
English (en)
Inventor
Kentaro Teranishi
Original Assignee
Toshiba Matsushita Display Tec
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 Toshiba Matsushita Display Tec filed Critical Toshiba Matsushita Display Tec
Publication of TW200622983A publication Critical patent/TW200622983A/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
    • 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
    • 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
    • G09G3/36—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 using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3648—Control of matrices with row and column drivers using an active matrix

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal (AREA)
  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
TW094131491A 2004-09-13 2005-09-13 Light source device TW200622983A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004265640A JP2006078974A (ja) 2004-09-13 2004-09-13 光源装置

Publications (1)

Publication Number Publication Date
TW200622983A true TW200622983A (en) 2006-07-01

Family

ID=36033371

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094131491A TW200622983A (en) 2004-09-13 2005-09-13 Light source device

Country Status (5)

Country Link
US (1) US20060055660A1 (zh)
JP (1) JP2006078974A (zh)
KR (1) KR100732098B1 (zh)
CN (1) CN100430973C (zh)
TW (1) TW200622983A (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI381357B (zh) * 2006-12-27 2013-01-01 Lg Display Co Ltd 液晶顯示裝置與用於驅動此裝置之方法
TWI396165B (zh) * 2008-04-22 2013-05-11 Au Optronics Corp 液晶顯示器及其背光模組驅動裝置與方法
TWI423238B (zh) * 2009-12-11 2014-01-11 Lg Display Co Ltd 背光模組之驅動系統與具有該系統之液晶顯示裝置及其驅動方法

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20070025034A (ko) * 2005-08-31 2007-03-08 삼성전자주식회사 백라이트 유닛과 이를 포함하는 표시장치
WO2007034599A1 (ja) * 2005-09-26 2007-03-29 Sharp Kabushiki Kaisha 表示装置
US9093041B2 (en) * 2005-11-28 2015-07-28 Honeywell International Inc. Backlight variation compensated display
US20100149428A1 (en) * 2006-02-10 2010-06-17 Ryuhei Kishimoto Backlight Device, Display Device, and Television Receiver
KR101199853B1 (ko) * 2006-04-05 2012-11-09 엘지디스플레이 주식회사 백라이트 구동회로 및 구동방법
US20070268238A1 (en) * 2006-05-22 2007-11-22 Himax Technologies, Inc. Image-displaying control circuit of a scan-backlight LCD
JP5124130B2 (ja) * 2006-06-23 2013-01-23 エルジー ディスプレイ カンパニー リミテッド 液晶表示装置のバックライトを駆動する装置及び方法
KR100830508B1 (ko) 2006-09-08 2008-05-22 엘지전자 주식회사 복수개의 로드를 구동시켜 휘도를 조정하는 영상기기 및 그제어방법
JP5122788B2 (ja) * 2006-10-26 2013-01-16 パナソニック株式会社 放電灯点灯装置、照明装置及び冷蔵ショーケース
KR100882647B1 (ko) * 2007-04-17 2009-02-06 엘지이노텍 주식회사 외부 동기형 위상 시프트 회로
CN101295472B (zh) * 2007-04-24 2010-10-06 北京京东方光电科技有限公司 液晶显示装置高动态对比度的处理装置和处理方法
CN101682977B (zh) * 2007-06-26 2012-10-31 夏普株式会社 背光源控制装置及具备该背光源控制装置的显示装置
CN101393727B (zh) * 2007-09-21 2011-07-20 北京京东方光电科技有限公司 液晶显示装置高动态对比度的处理装置和处理方法
TWI394130B (zh) * 2008-03-26 2013-04-21 Au Optronics Corp 顯示器及其背光模組
KR20110024102A (ko) * 2009-09-01 2011-03-09 삼성전자주식회사 Ｌｅｄ 구동 장치 및 방법, 이를 이용하는 ｌｅｄ 구동 시스템 및 액정 표시 장치
US8643292B2 (en) * 2009-11-12 2014-02-04 Richtek Technology Corporation Digital dimming device and digital dimming method
CN102076146B (zh) * 2009-11-25 2014-04-16 立锜科技股份有限公司 数字调光装置与数字调光方法
CN102076149B (zh) * 2010-11-15 2012-01-04 凹凸电子（武汉）有限公司 光源驱动电路及控制光源亮度的控制器和方法
WO2021137664A1 (en) * 2020-01-03 2021-07-08 Samsung Electronics Co., Ltd. Display module and driving method thereof

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000275604A (ja) * 1999-03-23 2000-10-06 Hitachi Ltd 液晶表示装置
JP2001235720A (ja) * 2000-02-22 2001-08-31 Mitsubishi Electric Corp 液晶表示装置
JP3699002B2 (ja) * 2000-06-15 2005-09-28 シャープ株式会社 液晶表示装置および液晶表示装置の駆動方法
JP3834461B2 (ja) * 2000-08-11 2006-10-18 日本アビオニクス株式会社 調光方法
JP2002207463A (ja) * 2000-11-13 2002-07-26 Mitsubishi Electric Corp 液晶表示装置
JP2003050569A (ja) * 2000-11-30 2003-02-21 Hitachi Ltd 液晶表示装置
JP4210040B2 (ja) * 2001-03-26 2009-01-14 パナソニック株式会社 画像表示装置および方法
JP2002354823A (ja) * 2001-05-18 2002-12-06 Advanced Display Inc Ｐｗｍ方式インバータ回路
CN1428758A (zh) * 2001-11-14 2003-07-09 松下电器产业株式会社 压电变压器的驱动电路及驱动方法、背光装置、液晶显示装置
CN1215639C (zh) * 2002-01-10 2005-08-17 达方电子股份有限公司 适用于显示装置背光模块的可调亮度变电电路
JP4115715B2 (ja) * 2002-03-01 2008-07-09 シャープ株式会社 バックライト装置
US7106294B2 (en) * 2002-03-28 2006-09-12 Matsushita Electric Industrial Co., Ltd Liquid crystal display device
TWI227768B (en) * 2002-10-29 2005-02-11 Fujitsu Display Tech Illumination device and liquid crystal display device using the same
JP2004184785A (ja) * 2002-12-05 2004-07-02 Hitachi Ltd 表示装置
JP4230208B2 (ja) * 2002-12-11 2009-02-25 シャープ株式会社 照明装置および液晶表示装置
KR20040068014A (ko) * 2003-01-22 2004-07-30 오투 마이크로, 인코포레이티드 전원 회로의 제어장치 및 그 구동 방법, 에너지를공급하기 위한 전기 회로 및 그 전기 회로를 구비한 표시장치
TWI229764B (en) * 2003-05-14 2005-03-21 Au Optronics Corp A transflective liquid crystal display device
TW592365U (en) * 2003-05-21 2004-06-11 Richtek Technology Corp Light source control chip of dual-display handheld device
US7256763B2 (en) * 2003-06-10 2007-08-14 Hitachi Displays, Ltd. Liquid crystal display device and driving method thereof
KR100801627B1 (ko) * 2003-12-24 2008-02-11 삼성전자주식회사 디스플레이장치 및 그 제어방법

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI381357B (zh) * 2006-12-27 2013-01-01 Lg Display Co Ltd 液晶顯示裝置與用於驅動此裝置之方法
US8638287B2 (en) 2006-12-27 2014-01-28 Lg Display Co., Ltd. Liquid crystal display device and method for driving the same
TWI396165B (zh) * 2008-04-22 2013-05-11 Au Optronics Corp 液晶顯示器及其背光模組驅動裝置與方法
TWI423238B (zh) * 2009-12-11 2014-01-11 Lg Display Co Ltd 背光模組之驅動系統與具有該系統之液晶顯示裝置及其驅動方法
US8736639B2 (en) 2009-12-11 2014-05-27 Lg Display Co., Ltd. Driving system for backlight unit, liquid crystal display device including the same and method of driving the same

Also Published As

Publication number Publication date
KR20060051198A (ko) 2006-05-19
US20060055660A1 (en) 2006-03-16
CN1750076A (zh) 2006-03-22
JP2006078974A (ja) 2006-03-23
CN100430973C (zh) 2008-11-05
KR100732098B1 (ko) 2007-06-27

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