CN1693952A - 液晶显示装置、用于该装置的光源驱动电路及驱动方法 - Google Patents
液晶显示装置、用于该装置的光源驱动电路及驱动方法 Download PDFInfo
- Publication number
- CN1693952A CN1693952A CNA2005100667177A CN200510066717A CN1693952A CN 1693952 A CN1693952 A CN 1693952A CN A2005100667177 A CNA2005100667177 A CN A2005100667177A CN 200510066717 A CN200510066717 A CN 200510066717A CN 1693952 A CN1693952 A CN 1693952A
- Authority
- CN
- China
- Prior art keywords
- frequency
- driving pulse
- liquid crystal
- pulse voltage
- horizontal
- 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.)
- Granted
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 82
- 238000000034 method Methods 0.000 title claims description 10
- 239000003990 capacitor Substances 0.000 claims abstract description 39
- 230000005611 electricity Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 description 40
- 238000010586 diagram Methods 0.000 description 13
- 230000003534 oscillatory effect Effects 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000005755 formation reaction Methods 0.000 description 5
- 230000010355 oscillation Effects 0.000 description 4
- 238000005286 illumination Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 210000002858 crystal cell Anatomy 0.000 description 1
Images
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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Optics & Photonics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
- Liquid Crystal (AREA)
- Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
Description
Claims (8)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004136331 | 2004-04-30 | ||
JP2004136331A JP2005316298A (ja) | 2004-04-30 | 2004-04-30 | 液晶表示装置、該液晶表示装置に用いられる光源駆動回路及び光源駆動方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1693952A true CN1693952A (zh) | 2005-11-09 |
CN100363793C CN100363793C (zh) | 2008-01-23 |
Family
ID=35186398
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2005100667177A Expired - Fee Related CN100363793C (zh) | 2004-04-30 | 2005-04-30 | 液晶显示装置、用于该装置的光源驱动电路及驱动方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7489295B2 (zh) |
JP (1) | JP2005316298A (zh) |
KR (1) | KR100708021B1 (zh) |
CN (1) | CN100363793C (zh) |
TW (1) | TWI282961B (zh) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100365476C (zh) * | 2006-02-16 | 2008-01-30 | 友达光电股份有限公司 | 液晶显示器及其驱动方法 |
CN100456347C (zh) * | 2005-12-22 | 2009-01-28 | 友达光电股份有限公司 | 减少噪声方法和液晶显示系统及其电路 |
US8013830B2 (en) | 2006-01-27 | 2011-09-06 | Au Optronics Corp. | Liquid crystal display and driving method thereof |
CN102411908A (zh) * | 2010-09-21 | 2012-04-11 | 苹果公司 | 显示器的背光系统 |
CN103606356A (zh) * | 2013-11-06 | 2014-02-26 | 深圳市华星光电技术有限公司 | 一种液晶显示装置及其背光驱动方法 |
CN104616624A (zh) * | 2013-11-01 | 2015-05-13 | Nlt科技股份有限公司 | Led驱动电路、led驱动方法和液晶显示装置 |
CN109389955A (zh) * | 2017-08-03 | 2019-02-26 | 精工爱普生株式会社 | 显示装置、电子设备、以及显示装置的驱动方法 |
WO2021238362A1 (zh) * | 2020-05-26 | 2021-12-02 | 海信视像科技股份有限公司 | 显示设备 |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7742015B2 (en) * | 2005-10-21 | 2010-06-22 | Toshiba Matsushita Display Technology Co., Ltd. | Liquid crystal display device |
KR100767868B1 (ko) * | 2005-12-12 | 2007-10-17 | 엘지전자 주식회사 | 영상표시 장치용 디밍 회로 및 그 제어방법 |
KR100791841B1 (ko) * | 2006-03-10 | 2008-01-07 | 삼성전자주식회사 | 프레임 신호에 동기된 백라이트 신호를 발생하기 위한장치와 방법 |
WO2007144989A1 (ja) * | 2006-06-16 | 2007-12-21 | Sharp Kabushiki Kaisha | 表示装置およびテレビ受信機 |
WO2007144988A1 (ja) * | 2006-06-16 | 2007-12-21 | Sharp Kabushiki Kaisha | 表示装置およびテレビ受信機 |
TWI348671B (en) * | 2006-08-16 | 2011-09-11 | Au Optronics Corp | A circuit for driving an lcd panel and a method thereof |
KR101254735B1 (ko) * | 2006-09-12 | 2013-04-16 | 삼성디스플레이 주식회사 | 휘도 조정 장치 및 액정표시장치 |
TWI366163B (en) * | 2006-09-15 | 2012-06-11 | Au Optronics Corp | Apparatus and method for adaptively adjusting backlight |
US7924254B2 (en) * | 2006-11-13 | 2011-04-12 | Wintek Corporation | Backlight processing system and method thereof |
KR101229773B1 (ko) | 2007-04-02 | 2013-02-06 | 엘지디스플레이 주식회사 | 액정표시장치의 램프 구동 장치 |
EP2143281A4 (en) * | 2007-04-05 | 2010-06-23 | Catholic Healthcare West | METHOD FOR DETECTING AND CONTROLLING PERCEPTIVE SCINTILATION |
TWI402807B (zh) | 2008-05-08 | 2013-07-21 | Novatek Microelectronics Corp | 電源順序控制電路及所應用的閘極驅動器與液晶顯示面板 |
KR100928414B1 (ko) * | 2008-06-23 | 2009-11-26 | 이미지랩(주) | 엘씨디 구동용 고전압 펄스 회로 |
KR101497651B1 (ko) | 2008-09-03 | 2015-03-06 | 삼성디스플레이 주식회사 | 표시 장치 및 이의 구동 방법 |
JP5058924B2 (ja) * | 2008-09-12 | 2012-10-24 | シャープ株式会社 | バックライトユニット、液晶表示装置およびインバータの調光周波数制御方法 |
KR100978668B1 (ko) * | 2008-11-28 | 2010-08-30 | 삼성전기주식회사 | 디스플레이 구동 장치 |
KR101603793B1 (ko) | 2009-04-16 | 2016-03-16 | 로무 가부시키가이샤 | 가변 구동 주파수를 이용한 램프 구동 제어 방법, 인버터 장치 및 표시 장치 |
CN102044207B (zh) | 2009-10-26 | 2013-02-06 | 群康科技(深圳)有限公司 | 驱动芯片的建立时间和保持时间调整电路 |
TWI413971B (zh) * | 2009-12-22 | 2013-11-01 | Innolux Corp | 驅動晶片之建立時間及保持時間調整電路 |
KR101289650B1 (ko) | 2010-12-08 | 2013-07-25 | 엘지디스플레이 주식회사 | 액정표시장치와 그 스캐닝 백라이트 구동 방법 |
KR101289651B1 (ko) | 2010-12-08 | 2013-07-25 | 엘지디스플레이 주식회사 | 액정표시장치와 그 스캐닝 백라이트 구동 방법 |
TWI420499B (zh) * | 2011-04-08 | 2013-12-21 | Chunghwa Picture Tubes Ltd | 液晶顯示裝置及其驅動方法 |
CN102890917B (zh) * | 2011-07-20 | 2015-09-02 | 乐金显示有限公司 | 背光驱动装置及其驱动方法、液晶显示设备及其驱动方法 |
US9165518B2 (en) | 2011-08-08 | 2015-10-20 | Samsung Display Co., Ltd. | Display device and driving method thereof |
US9019188B2 (en) | 2011-08-08 | 2015-04-28 | Samsung Display Co., Ltd. | Display device for varying different scan ratios for displaying moving and still images and a driving method thereof |
US9299301B2 (en) | 2011-11-04 | 2016-03-29 | Samsung Display Co., Ltd. | Display device and method for driving the display device |
US9208736B2 (en) | 2011-11-28 | 2015-12-08 | Samsung Display Co., Ltd. | Display device and driving method thereof |
US9129572B2 (en) | 2012-02-21 | 2015-09-08 | Samsung Display Co., Ltd. | Display device and related method |
KR102071628B1 (ko) * | 2013-04-11 | 2020-01-31 | 삼성디스플레이 주식회사 | 표시 장치 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05113766A (ja) | 1991-10-21 | 1993-05-07 | Sharp Corp | バツクライト付液晶表示装置 |
JPH05113765A (ja) * | 1991-10-23 | 1993-05-07 | Fujitsu Ltd | Crtやけ防止方式 |
JPH0993517A (ja) * | 1995-09-22 | 1997-04-04 | Toshiba Corp | 液晶表示装置 |
JP3298548B2 (ja) * | 1999-04-09 | 2002-07-02 | 松下電器産業株式会社 | 液晶表示装置 |
CN1220098C (zh) * | 2000-04-28 | 2005-09-21 | 夏普株式会社 | 显示器件、显示器件驱动方法和装有显示器件的电子设备 |
JP2001319795A (ja) * | 2000-05-08 | 2001-11-16 | Toshiba Corp | インバータ回路 |
JP4472126B2 (ja) * | 2000-06-26 | 2010-06-02 | Necディスプレイソリューションズ株式会社 | バックライト駆動回路 |
JP2002123226A (ja) * | 2000-10-12 | 2002-04-26 | 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 |
JP3610958B2 (ja) * | 2002-03-05 | 2005-01-19 | セイコーエプソン株式会社 | 輝度制御装置およびモニタ装置 |
JP2004004659A (ja) * | 2002-03-28 | 2004-01-08 | Matsushita Electric Ind Co Ltd | 液晶表示装置 |
US7417616B2 (en) * | 2002-09-04 | 2008-08-26 | Samsung Electronics Co., Ltd. | Inverter for liquid crystal display |
KR100920353B1 (ko) * | 2003-03-14 | 2009-10-07 | 삼성전자주식회사 | 표시 장치용 광원의 구동 장치 |
-
2004
- 2004-04-30 JP JP2004136331A patent/JP2005316298A/ja active Pending
-
2005
- 2005-04-28 TW TW094113667A patent/TWI282961B/zh not_active IP Right Cessation
- 2005-04-28 KR KR1020050035418A patent/KR100708021B1/ko not_active IP Right Cessation
- 2005-04-30 CN CNB2005100667177A patent/CN100363793C/zh not_active Expired - Fee Related
- 2005-05-02 US US11/118,432 patent/US7489295B2/en not_active Expired - Fee Related
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100456347C (zh) * | 2005-12-22 | 2009-01-28 | 友达光电股份有限公司 | 减少噪声方法和液晶显示系统及其电路 |
US8013830B2 (en) | 2006-01-27 | 2011-09-06 | Au Optronics Corp. | Liquid crystal display and driving method thereof |
CN100365476C (zh) * | 2006-02-16 | 2008-01-30 | 友达光电股份有限公司 | 液晶显示器及其驱动方法 |
CN102411908A (zh) * | 2010-09-21 | 2012-04-11 | 苹果公司 | 显示器的背光系统 |
CN102411908B (zh) * | 2010-09-21 | 2014-12-10 | 苹果公司 | 显示器的背光系统 |
CN104616624A (zh) * | 2013-11-01 | 2015-05-13 | Nlt科技股份有限公司 | Led驱动电路、led驱动方法和液晶显示装置 |
CN103606356A (zh) * | 2013-11-06 | 2014-02-26 | 深圳市华星光电技术有限公司 | 一种液晶显示装置及其背光驱动方法 |
CN109389955A (zh) * | 2017-08-03 | 2019-02-26 | 精工爱普生株式会社 | 显示装置、电子设备、以及显示装置的驱动方法 |
CN109389955B (zh) * | 2017-08-03 | 2021-07-13 | 精工爱普生株式会社 | 显示装置、电子设备、以及显示装置的驱动方法 |
WO2021238362A1 (zh) * | 2020-05-26 | 2021-12-02 | 海信视像科技股份有限公司 | 显示设备 |
Also Published As
Publication number | Publication date |
---|---|
KR20060047569A (ko) | 2006-05-18 |
CN100363793C (zh) | 2008-01-23 |
JP2005316298A (ja) | 2005-11-10 |
US20050242756A1 (en) | 2005-11-03 |
KR100708021B1 (ko) | 2007-04-16 |
TWI282961B (en) | 2007-06-21 |
US7489295B2 (en) | 2009-02-10 |
TW200601232A (en) | 2006-01-01 |
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C14 | Grant of patent or utility model | ||
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Owner name: NIPPON ELECTRIC CO., LTD. Free format text: FORMER OWNER: NEC LCD TECHNOLOGY CO.,LTD Effective date: 20100611 |
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Free format text: CORRECT: ADDRESS; FROM: KAWASAKI-SHI, KANAGAWA-KEN, JAPAN TO: TOKYO, JAPAN |
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Effective date of registration: 20100611 Address after: Tokyo, Japan Patentee after: NEC Corp. Address before: Kawasaki, Kanagawa, Japan Patentee before: NEC LCD Technologies, Ltd. |
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Owner name: GETENA FOUNDATION CO., LTD. Free format text: FORMER OWNER: NEC CORP. Effective date: 20110901 |
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