FR2905027B1 - Dispositif d'affichage a cristaux liquides et son procede de pilotage - Google Patents

Dispositif d'affichage a cristaux liquides et son procede de pilotage

Info

Publication number
FR2905027B1
FR2905027B1 FR0704567A FR0704567A FR2905027B1 FR 2905027 B1 FR2905027 B1 FR 2905027B1 FR 0704567 A FR0704567 A FR 0704567A FR 0704567 A FR0704567 A FR 0704567A FR 2905027 B1 FR2905027 B1 FR 2905027B1
Authority
FR
France
Prior art keywords
liquid crystal
display device
crystal display
control method
backlighting
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.)
Active
Application number
FR0704567A
Other languages
English (en)
Other versions
FR2905027A1 (fr
Inventor
Dong Kyoung Oh
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 Display Co Ltd
Original Assignee
LG Philips LCD 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 Philips LCD Co Ltd filed Critical LG Philips LCD Co Ltd
Publication of FR2905027A1 publication Critical patent/FR2905027A1/fr
Application granted granted Critical
Publication of FR2905027B1 publication Critical patent/FR2905027B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
    • H05B41/282—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices
    • H05B41/2825—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices by means of a bridge converter in the final stage
    • H05B41/2828—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices by means of a bridge converter in the final stage using control circuits for the switching elements
    • 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
    • G09G2310/024—Scrolling of light from the illumination source over the display in combination with the scanning of the display 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
    • G09G2320/02—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
    • G09G2320/0626—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
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • G09G2320/0646—Modulation of illumination source brightness and image signal correlated to each other
    • 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
    • G09G2320/10—Special adaptations of display systems for operation with variable images
    • G09G2320/103—Detection of image changes, e.g. determination of an index representative of the image change
    • 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
    • G09G2320/10—Special adaptations of display systems for operation with variable images
    • G09G2320/106—Determination of movement vectors or equivalent parameters within the image
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G09G2330/028—Generation of voltages supplied to electrode drivers in a matrix display other than LCD
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00—Aspects of display data processing
    • G09G2340/16—Determination of a pixel data signal depending on the signal applied in the previous frame
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
FR0704567A 2006-08-21 2007-06-26 Dispositif d'affichage a cristaux liquides et son procede de pilotage Active FR2905027B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR20060078858 2006-08-21

Publications (2)

Publication Number Publication Date
FR2905027A1 FR2905027A1 (fr) 2008-02-22
FR2905027B1 true FR2905027B1 (fr) 2013-12-20

Family

ID=39100945

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0704567A Active FR2905027B1 (fr) 2006-08-21 2007-06-26 Dispositif d'affichage a cristaux liquides et son procede de pilotage

Country Status (4)

Country Link
US (1) US8325129B2 (fr)
KR (1) KR20080017280A (fr)
CN (1) CN101131505B (fr)
FR (1) FR2905027B1 (fr)

Families Citing this family (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090059179A (ko) * 2007-12-06 2009-06-11 삼성전자주식회사 백라이트 장치와 이의 제어방법과 이를 갖는 액정표시장치
KR20090069791A (ko) * 2007-12-26 2009-07-01 삼성전자주식회사 표시 장치의 광원 제어 장치 및 방법
TWI423226B (zh) * 2008-09-24 2014-01-11 Himax Media Solutions Inc 背光控制系統和方法
US8334834B2 (en) * 2008-09-30 2012-12-18 Himax Media Solutions, Inc. Backlight control system and method
TWI475544B (zh) 2008-10-24 2015-03-01 Semiconductor Energy Lab 顯示裝置
KR101494212B1 (ko) * 2008-10-29 2015-02-23 삼성디스플레이 주식회사 광원 구동 방법, 이를 수행하기 위한 광원 장치 및 이 광원장치를 갖는 표시 장치
KR101536216B1 (ko) * 2008-11-21 2015-07-14 삼성디스플레이 주식회사 광원 구동 방법, 이를 수행하기 위한 표시 장치 및 이 표시장치의 구동 방법
KR101591652B1 (ko) * 2008-12-01 2016-02-11 삼성디스플레이 주식회사 액정 표시 장치 및 그 구동 방법
KR101510901B1 (ko) * 2008-12-15 2015-04-10 엘지디스플레이 주식회사 액정표시장치
CN101888726A (zh) * 2009-05-13 2010-11-17 承景科技股份有限公司 动态背光控制的适应性步进控制系统及方法
US20100309213A1 (en) * 2009-06-08 2010-12-09 Himax Media Solutions, Inc. Adaptive Stepping-Control System and Method for Dynamic Backlight Control
WO2011001726A1 (fr) * 2009-07-03 2011-01-06 シャープ株式会社 Dispositif d'affichage à cristaux liquides et procédé de commande de source de lumière
CN102472904A (zh) * 2009-07-03 2012-05-23 夏普株式会社 液晶显示装置和光源控制方法
EP2454629B1 (fr) 2009-07-13 2017-09-20 Dolby Laboratories Licensing Corporation Systèmes et procédés de commande de signaux de pilotage dans des dispositifs d'affichage à modulateur spatial de lumière
WO2011040010A1 (fr) * 2009-10-02 2011-04-07 パナソニック株式会社 Dispositif de rétro-éclairage et appareil d'affichage
WO2011040011A1 (fr) * 2009-10-02 2011-04-07 パナソニック株式会社 Dispositif de rétro-éclairage et appareil d'affichage
KR101476858B1 (ko) * 2009-10-08 2014-12-26 엘지디스플레이 주식회사 액정표시장치
KR101450920B1 (ko) * 2009-12-17 2014-10-23 엘지디스플레이 주식회사 액정표시장치와 그 소프트웨어 업데이트 방법
WO2011089843A1 (fr) 2010-01-20 2011-07-28 Semiconductor Energy Laboratory Co., Ltd. Procédé de pilotage de dispositif d'affichage
WO2011089842A1 (fr) * 2010-01-20 2011-07-28 Semiconductor Energy Laboratory Co., Ltd. Procédé de commande de dispositif d'affichage à cristaux liquides
TWI434269B (zh) 2010-02-02 2014-04-11 Novatek Microelectronics Corp 背光控制裝置及其控制方法
CN102157140A (zh) * 2010-02-11 2011-08-17 联咏科技股份有限公司 背光控制装置及其控制方法
CN102157133B (zh) * 2010-02-12 2014-06-11 联咏科技股份有限公司 背光控制装置及其控制方法
KR20110114075A (ko) * 2010-04-12 2011-10-19 삼성전자주식회사 백라이트 유닛 및 이를 포함한 디스플레이 장치
US8698852B2 (en) * 2010-05-20 2014-04-15 Semiconductor Energy Laboratory Co., Ltd. Display device and method for driving the same
KR101726632B1 (ko) * 2010-11-15 2017-04-14 엘지디스플레이 주식회사 표시장치
KR101289651B1 (ko) * 2010-12-08 2013-07-25 엘지디스플레이 주식회사 액정표시장치와 그 스캐닝 백라이트 구동 방법
KR101289650B1 (ko) * 2010-12-08 2013-07-25 엘지디스플레이 주식회사 액정표시장치와 그 스캐닝 백라이트 구동 방법
KR20120075168A (ko) * 2010-12-28 2012-07-06 삼성모바일디스플레이주식회사 액정 표시 장치 및 그 구동 방법
KR20210078571A (ko) 2012-03-13 2021-06-28 가부시키가이샤 한도오따이 에네루기 켄큐쇼 발광 장치 및 그 구동 방법
KR102093244B1 (ko) 2012-04-03 2020-03-26 삼성디스플레이 주식회사 잔상 제거 대상 위치 설정 방법, 유기 발광 표시 장치 및 이의 구동 방법
KR101560240B1 (ko) * 2012-05-29 2015-10-14 엘지디스플레이 주식회사 백라이트 드라이버 및 그 구동 방법과 그를 이용한 액정 표시 장치
TWI618058B (zh) 2013-05-16 2018-03-11 半導體能源研究所股份有限公司 半導體裝置
JP2015114443A (ja) * 2013-12-11 2015-06-22 キヤノン株式会社 表示装置及び表示装置の制御方法
JP6607681B2 (ja) 2014-03-07 2019-11-20 株式会社半導体エネルギー研究所 半導体装置
TWI735206B (zh) 2014-04-10 2021-08-01 日商半導體能源研究所股份有限公司 記憶體裝置及半導體裝置
WO2015170220A1 (fr) 2014-05-09 2015-11-12 Semiconductor Energy Laboratory Co., Ltd. Dispositif de mémoire et dispositif électronique
CN105489170B (zh) * 2014-09-16 2019-08-06 青岛海信电器股份有限公司 一种背光源的驱动方法、装置及显示设备
KR102280939B1 (ko) 2015-01-29 2021-07-27 삼성디스플레이 주식회사 표시 장치 및 그것의 휘도 제어 방법
US9905700B2 (en) 2015-03-13 2018-02-27 Semiconductor Energy Laboratory Co., Ltd. Semiconductor device or memory device and driving method thereof
US9741400B2 (en) 2015-11-05 2017-08-22 Semiconductor Energy Laboratory Co., Ltd. Semiconductor device, memory device, electronic device, and method for operating the semiconductor device
JP6822853B2 (ja) 2016-01-21 2021-01-27 株式会社半導体エネルギー研究所 記憶装置及び記憶装置の駆動方法
TWI716799B (zh) * 2019-01-08 2021-01-21 佳世達科技股份有限公司 調整動態模糊效果的方法及具有調整動態模糊效果能力的顯示系統
JP2020129066A (ja) * 2019-02-08 2020-08-27 シャープ株式会社 表示装置及びバックライト制御装置
US10504453B1 (en) * 2019-04-18 2019-12-10 Apple Inc. Displays with adjustable direct-lit backlight units
CN111554240B (zh) * 2020-05-29 2022-08-16 上海天马微电子有限公司 显示装置的驱动方法及显示装置
CN112164360A (zh) * 2020-09-24 2021-01-01 合肥维信诺科技有限公司 显示驱动电路和显示装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003050569A (ja) * 2000-11-30 2003-02-21 Hitachi Ltd 液晶表示装置
KR100868159B1 (ko) * 2002-10-29 2008-11-12 샤프 가부시키가이샤 조명 장치 및 그것을 이용한 액정 표시 장치
CN100472597C (zh) * 2002-12-06 2009-03-25 夏普株式会社 液晶显示装置
AU2003289238A1 (en) * 2002-12-06 2004-06-30 Sharp Kabushiki Kaisha Liquid crystal display device
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
KR100580552B1 (ko) * 2003-11-17 2006-05-16 엘지.필립스 엘시디 주식회사 액정표시장치의 구동방법 및 구동장치
US7375719B2 (en) * 2003-12-29 2008-05-20 Lg. Philips Lcd. Co., Ltd Method and apparatus for driving liquid crystal display
CN100489948C (zh) * 2004-06-21 2009-05-20 钰瀚科技股份有限公司 一种去除画面间影像重叠模糊的方法与装置

Also Published As

Publication number Publication date
CN101131505A (zh) 2008-02-27
FR2905027A1 (fr) 2008-02-22
CN101131505B (zh) 2010-06-09
US8325129B2 (en) 2012-12-04
KR20080017280A (ko) 2008-02-26
US20080042968A1 (en) 2008-02-21

Similar Documents

Publication Publication Date Title
FR2905027B1 (fr) Dispositif d'affichage a cristaux liquides et son procede de pilotage
TW200721087A (en) Device for driving a backlight, backlight assembly, LCD apparatus having the same and method for driving a backlight
KR101560240B1 (ko) 백라이트 드라이버 및 그 구동 방법과 그를 이용한 액정 표시 장치
TW200746029A (en) Liquid crystal display device
US20050231453A1 (en) Field sequential color mode liquid crystal display device and method of driving the same
CN100458507C (zh) 能调节多划分区中各区亮度级的液晶显示器及其驱动方法
US8890796B2 (en) Method and circuit for synchronizing input and output synchronizing signals, backlight driver in liquid crystal display device using the same, and method for driving the backlight driver
WO2008102706A1 (fr) Dispositif de source lumineuse et dispositif d'affichage à cristaux liquides associé
US9125276B2 (en) Backlight unit including first and second driving currents and display apparatus using the same
TW200746028A (en) Liquid crystal display device
TW200729119A (en) Liquid crystal display and driving method thereof
TW200622983A (en) Light source device
TW200723202A (en) Liquid crystal display and driving method thereof
TW200627335A (en) Liquid crystal display apparatus, light-sensing element and apparatus for controlling luminance of a light source
RU2011110068A (ru) Устройство отображения изображения, телевизионный приемник, способ управления устройством отображения изображения и способ управления телевизионным приемником
US8159154B2 (en) Apparatus and method of driving backlight unit and display apparatus employing the same
TW200613832A (en) Module and method for controlling a backlight module and lcd for thereof
KR102281815B1 (ko) 액정표시장치 및 그 구동방법
KR101897002B1 (ko) 액정표시장치 및 그 구동 방법
EP1806725A3 (fr) LCD capable de contrôler la luminance de l'écran et procédé de contrôle de la luminance correspondant
US20130162700A1 (en) Drive circuit, drive method, and display device
JP2012199041A (ja) バックライト装置及び液晶表示装置
US8416182B2 (en) Apparatus and method for driving a liquid crystal display device for reducing ripple noise
JP2009042443A (ja) 液晶表示装置
CN109493815B (zh) 显示装置以及背光驱动方法

Legal Events

Date Code Title Description
CD Change of name or company name
PLFP Fee payment

Year of fee payment: 10

PLFP Fee payment

Year of fee payment: 11

PLFP Fee payment

Year of fee payment: 12

PLFP Fee payment

Year of fee payment: 14

PLFP Fee payment

Year of fee payment: 15

PLFP Fee payment

Year of fee payment: 16

PLFP Fee payment

Year of fee payment: 17