KR20090043865A - 액정 표시 장치 및 그의 구동 방법 - Google Patents

액정 표시 장치 및 그의 구동 방법 Download PDF

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Publication number
KR20090043865A
KR20090043865A KR1020070109654A KR20070109654A KR20090043865A KR 20090043865 A KR20090043865 A KR 20090043865A KR 1020070109654 A KR1020070109654 A KR 1020070109654A KR 20070109654 A KR20070109654 A KR 20070109654A KR 20090043865 A KR20090043865 A KR 20090043865A
Authority
KR
South Korea
Prior art keywords
light emitting
voltage
operation mode
reference voltage
liquid crystal
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.)
Ceased
Application number
KR1020070109654A
Other languages
English (en)
Korean (ko)
Inventor
이상길
문승환
이기찬
Original Assignee
삼성전자주식회사
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 삼성전자주식회사 filed Critical 삼성전자주식회사
Priority to KR1020070109654A priority Critical patent/KR20090043865A/ko
Priority to JP2008144324A priority patent/JP5557431B2/ja
Priority to US12/238,201 priority patent/US20090109166A1/en
Priority to CNA2008101719420A priority patent/CN101425278A/zh
Publication of KR20090043865A publication Critical patent/KR20090043865A/ko
Ceased legal-status Critical Current

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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
    • G09G3/36—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
    • 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
    • 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
    • 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
    • G09G2310/0237—Switching ON and OFF the backlight within one frame
    • 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
    • G09G2310/06—Details of flat display driving waveforms
    • G09G2310/061—Details of flat display driving waveforms for resetting or blanking
    • 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
    • G09G2320/0261—Improving the quality of display appearance in the context of movement of objects on the screen or movement of the observer relative to 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
    • G09G2320/0613—The adjustment depending on the type of the information to be displayed
    • G09G2320/062—Adjustment of illumination source parameters
    • 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
    • G09G2320/064—Adjustment of display parameters for control of overall brightness by time 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
    • G09G2360/16—Calculation or use of calculated indices related to luminance levels in display data

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (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)
KR1020070109654A 2007-10-30 2007-10-30 액정 표시 장치 및 그의 구동 방법 Ceased KR20090043865A (ko)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1020070109654A KR20090043865A (ko) 2007-10-30 2007-10-30 액정 표시 장치 및 그의 구동 방법
JP2008144324A JP5557431B2 (ja) 2007-10-30 2008-06-02 液晶表示装置
US12/238,201 US20090109166A1 (en) 2007-10-30 2008-09-25 Liquid crystal display and method of driving the same
CNA2008101719420A CN101425278A (zh) 2007-10-30 2008-10-24 液晶显示器和驱动该液晶显示器的方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020070109654A KR20090043865A (ko) 2007-10-30 2007-10-30 액정 표시 장치 및 그의 구동 방법

Publications (1)

Publication Number Publication Date
KR20090043865A true KR20090043865A (ko) 2009-05-07

Family

ID=40582220

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020070109654A Ceased KR20090043865A (ko) 2007-10-30 2007-10-30 액정 표시 장치 및 그의 구동 방법

Country Status (4)

Country Link
US (1) US20090109166A1 (enExample)
JP (1) JP5557431B2 (enExample)
KR (1) KR20090043865A (enExample)
CN (1) CN101425278A (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110053044A (ko) * 2009-11-13 2011-05-19 삼성전자주식회사 광원 구동 방법 및 이를 수행하기 위한 표시 장치
KR101129993B1 (ko) * 2010-05-28 2012-03-28 엘지이노텍 주식회사 램프의 전류 제어 장치
KR20160058291A (ko) * 2014-11-14 2016-05-25 삼성디스플레이 주식회사 백라이트 유닛, 이를 포함하는 표시 장치, 및 영상 표시 시스템

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101545697B1 (ko) 2008-08-29 2015-08-21 삼성디스플레이 주식회사 액정 표시 장치
KR101521098B1 (ko) * 2009-01-06 2015-05-20 삼성디스플레이 주식회사 광원 구동 방법 및 이를 수행하기 위한 광원 장치
US8686646B2 (en) 2009-05-27 2014-04-01 Rohm Co., Ltd. Illuminating device
JP5643489B2 (ja) * 2009-06-22 2014-12-17 ローム株式会社 照明灯および照明装置
JP2012168286A (ja) * 2011-02-10 2012-09-06 Sharp Corp 液晶ディスプレイパネルのバックライト制御装置、バックライト制御方法、及び液晶表示装置
US20140132493A1 (en) * 2012-11-15 2014-05-15 Shenzhen China Star Optoelectronics Technology Co., Ltd Clock Driver of Liquid Crystal Display
KR102045342B1 (ko) * 2012-12-28 2019-11-15 엘지디스플레이 주식회사 방전 제어 부를 포함하는 표시장치 및 이의 구동 방법
CN108538258B (zh) * 2017-03-06 2023-03-24 北京小米移动软件有限公司 调整背光电流的方法及装置、显示设备

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5172415A (en) * 1990-06-08 1992-12-15 Fosgate James W Surround processor
JP2603952Y2 (ja) * 1992-12-03 2000-04-04 シャープ株式会社 表示装置
JP2001325824A (ja) * 2000-05-17 2001-11-22 Kyocera Corp 携帯用端末におけるバックライト用発光ダイオードの駆動回路
JP3438135B2 (ja) * 2000-05-19 2003-08-18 富士通株式会社 情報機器及び省電力モード切替方法及び省電力モード切替プログラムを格納した記録媒体
JP3971892B2 (ja) * 2000-09-08 2007-09-05 株式会社日立製作所 液晶表示装置
KR100685098B1 (ko) * 2001-08-30 2007-02-22 엘지전자 주식회사 노트북 컴퓨터에서의 램프구동방법
JP4167474B2 (ja) * 2002-11-07 2008-10-15 シャープ株式会社 液晶表示装置
JP4540605B2 (ja) * 2002-12-06 2010-09-08 シャープ株式会社 液晶表示装置
JP4299622B2 (ja) * 2003-09-24 2009-07-22 Ｎｅｃ液晶テクノロジー株式会社 液晶表示装置及び該液晶表示装置に用いられる駆動方法
KR100668083B1 (ko) * 2004-11-05 2007-01-11 삼성전자주식회사 백라이트 구동장치
CN100383837C (zh) * 2004-11-23 2008-04-23 亚洲光学股份有限公司 发光二极管驱动电路
JP2006189661A (ja) * 2005-01-06 2006-07-20 Toshiba Corp 画像表示装置及びその方法
WO2007007472A1 (ja) * 2005-07-07 2007-01-18 Sharp Kabushiki Kaisha 表示装置
US20070120807A1 (en) * 2005-11-28 2007-05-31 Shwang-Shi Bai Display system with high motion picture quality and luminance control thereof
KR101106561B1 (ko) * 2005-12-19 2012-01-19 엘지디스플레이 주식회사 액정표시장치의 구동회로 및 이를 포함하는 액정표시장치
WO2007072598A1 (ja) * 2005-12-22 2007-06-28 Sharp Kabushiki Kaisha 表示装置、受信装置及び表示装置の駆動方法
CN101021999B (zh) * 2006-02-15 2010-12-22 奇美电子股份有限公司 区域分割型显示器及其显示方法
TW200737070A (en) * 2006-02-23 2007-10-01 Powerdsine Ltd Voltage controlled backlight driver
US7948468B2 (en) * 2007-02-23 2011-05-24 The Regents Of The University Of Colorado Systems and methods for driving multiple solid-state light sources

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110053044A (ko) * 2009-11-13 2011-05-19 삼성전자주식회사 광원 구동 방법 및 이를 수행하기 위한 표시 장치
KR101129993B1 (ko) * 2010-05-28 2012-03-28 엘지이노텍 주식회사 램프의 전류 제어 장치
KR20160058291A (ko) * 2014-11-14 2016-05-25 삼성디스플레이 주식회사 백라이트 유닛, 이를 포함하는 표시 장치, 및 영상 표시 시스템

Also Published As

Publication number Publication date
US20090109166A1 (en) 2009-04-30
CN101425278A (zh) 2009-05-06
JP5557431B2 (ja) 2014-07-23
JP2009109974A (ja) 2009-05-21

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