CN102629451A - 一种led背光驱动电路、液晶显示装置及一种驱动方法 - Google Patents
一种led背光驱动电路、液晶显示装置及一种驱动方法 Download PDFInfo
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- CN102629451A CN102629451A CN2012101420612A CN201210142061A CN102629451A CN 102629451 A CN102629451 A CN 102629451A CN 2012101420612 A CN2012101420612 A CN 2012101420612A CN 201210142061 A CN201210142061 A CN 201210142061A CN 102629451 A CN102629451 A CN 102629451A
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- light modulation
- led
- branch road
- modulation branch
- led lamp
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000002955 isolation Methods 0.000 claims description 39
- 239000004065 semiconductor Substances 0.000 claims description 22
- 230000005142 aphototropism Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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Classifications
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- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Description
Claims (10)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210142061.2A CN102629451B (zh) | 2012-05-09 | 2012-05-09 | 一种led背光驱动电路、液晶显示装置及一种驱动方法 |
PCT/CN2012/075593 WO2013166737A1 (zh) | 2012-05-09 | 2012-05-16 | 一种led背光驱动电路、液晶显示装置及一种驱动方法 |
US13/518,954 US20130300770A1 (en) | 2012-05-09 | 2012-05-16 | LED Backlight Driving Circuit, Liquid Crystal Display Device, and Driving Method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210142061.2A CN102629451B (zh) | 2012-05-09 | 2012-05-09 | 一种led背光驱动电路、液晶显示装置及一种驱动方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN102629451A true CN102629451A (zh) | 2012-08-08 |
CN102629451B CN102629451B (zh) | 2015-02-11 |
Family
ID=46587703
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201210142061.2A Active CN102629451B (zh) | 2012-05-09 | 2012-05-09 | 一种led背光驱动电路、液晶显示装置及一种驱动方法 |
Country Status (2)
Country | Link |
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CN (1) | CN102629451B (zh) |
WO (1) | WO2013166737A1 (zh) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103280203A (zh) * | 2013-05-28 | 2013-09-04 | 深圳市华星光电技术有限公司 | Led背光驱动电路、液晶显示装置和一种驱动方法 |
WO2014040307A1 (zh) * | 2012-09-11 | 2014-03-20 | 深圳市华星光电技术有限公司 | Led背光驱动电路及led背光驱动方法 |
US8742683B2 (en) | 2012-09-11 | 2014-06-03 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | LED backlight driving circuit and LED backlight driving method |
CN104424880A (zh) * | 2013-08-21 | 2015-03-18 | 昆山工研院新型平板显示技术中心有限公司 | 有机发光显示装置、显示器及减少漏电流的方法 |
US9018857B2 (en) | 2013-05-28 | 2015-04-28 | Shenzhen China Star Optoelectronics Technology Co., Ltd | LED backlight driving circuit, LCD device, and method for driving the LED backlight driving circuit |
CN105976769A (zh) * | 2016-07-12 | 2016-09-28 | 武汉华星光电技术有限公司 | 液晶显示器及降低液晶显示器功耗的方法 |
CN109429411A (zh) * | 2017-09-01 | 2019-03-05 | 茂达电子股份有限公司 | 调光控制器与具有其之背光模块 |
CN109493811A (zh) * | 2018-12-25 | 2019-03-19 | 厦门天马微电子有限公司 | 一种显示装置及其驱动方法 |
CN110910843A (zh) * | 2019-12-20 | 2020-03-24 | 京东方科技集团股份有限公司 | 背光驱动电路及驱动方法、显示面板 |
CN112002287A (zh) * | 2020-08-31 | 2020-11-27 | 上海创功通讯技术有限公司 | 背光电路的亮度补偿方法、电子设备存储介质 |
CN112259042A (zh) * | 2019-07-22 | 2021-01-22 | 凹凸电子(武汉)有限公司 | 用于控制光源模块的控制器 |
CN114495848A (zh) * | 2022-03-07 | 2022-05-13 | 北京芯格诺微电子有限公司 | 基于占空比基准点设定的led背光调制方法 |
Citations (6)
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CN1825401A (zh) * | 2005-02-26 | 2006-08-30 | 三星电子株式会社 | 发光二极管驱动器 |
US20090295309A1 (en) * | 2008-06-02 | 2009-12-03 | Samsung Electronics Co., Ltd. | Feedback control of lighting-emitting blocks in a display apparatus |
CN1988743B (zh) * | 2005-12-22 | 2010-09-01 | 乐金显示有限公司 | 驱动发光二极管的装置 |
CN101916547A (zh) * | 2010-07-14 | 2010-12-15 | 成都芯源***有限公司 | 驱动多个发光元件的驱动器以及显示设备 |
CN102243388A (zh) * | 2010-05-12 | 2011-11-16 | 三星电子株式会社 | 显示装置 |
CN202210894U (zh) * | 2011-09-28 | 2012-05-02 | 苏州东山精密制造股份有限公司 | 调光驱动电路 |
Family Cites Families (5)
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JP4720099B2 (ja) * | 2004-04-20 | 2011-07-13 | ソニー株式会社 | 定電流駆動装置、バックライト光源装置及びカラー液晶表示装置 |
KR101422147B1 (ko) * | 2007-08-30 | 2014-08-14 | 삼성디스플레이 주식회사 | 액정표시장치 |
TW200917220A (en) * | 2007-10-15 | 2009-04-16 | Young Lighting Technology Corp | Light source driving circuit for back light module |
CN201403234Y (zh) * | 2009-05-05 | 2010-02-10 | 福州华映视讯有限公司 | 用于发光二极管背光***的接口整合电路及其背光*** |
CN102290031A (zh) * | 2011-08-26 | 2011-12-21 | 友达光电股份有限公司 | 一种用于液晶面板背光模块的调光结构 |
-
2012
- 2012-05-09 CN CN201210142061.2A patent/CN102629451B/zh active Active
- 2012-05-16 WO PCT/CN2012/075593 patent/WO2013166737A1/zh active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1825401A (zh) * | 2005-02-26 | 2006-08-30 | 三星电子株式会社 | 发光二极管驱动器 |
CN1988743B (zh) * | 2005-12-22 | 2010-09-01 | 乐金显示有限公司 | 驱动发光二极管的装置 |
US20090295309A1 (en) * | 2008-06-02 | 2009-12-03 | Samsung Electronics Co., Ltd. | Feedback control of lighting-emitting blocks in a display apparatus |
CN102243388A (zh) * | 2010-05-12 | 2011-11-16 | 三星电子株式会社 | 显示装置 |
CN101916547A (zh) * | 2010-07-14 | 2010-12-15 | 成都芯源***有限公司 | 驱动多个发光元件的驱动器以及显示设备 |
CN202210894U (zh) * | 2011-09-28 | 2012-05-02 | 苏州东山精密制造股份有限公司 | 调光驱动电路 |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014040307A1 (zh) * | 2012-09-11 | 2014-03-20 | 深圳市华星光电技术有限公司 | Led背光驱动电路及led背光驱动方法 |
US8742683B2 (en) | 2012-09-11 | 2014-06-03 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | LED backlight driving circuit and LED backlight driving method |
CN103280203A (zh) * | 2013-05-28 | 2013-09-04 | 深圳市华星光电技术有限公司 | Led背光驱动电路、液晶显示装置和一种驱动方法 |
WO2014190579A1 (zh) * | 2013-05-28 | 2014-12-04 | 深圳市华星光电技术有限公司 | Led背光驱动电路、液晶显示装置和一种驱动方法 |
US9018857B2 (en) | 2013-05-28 | 2015-04-28 | Shenzhen China Star Optoelectronics Technology Co., Ltd | LED backlight driving circuit, LCD device, and method for driving the LED backlight driving circuit |
CN103280203B (zh) * | 2013-05-28 | 2016-03-30 | 深圳市华星光电技术有限公司 | Led背光驱动电路、液晶显示装置和一种驱动方法 |
CN104424880A (zh) * | 2013-08-21 | 2015-03-18 | 昆山工研院新型平板显示技术中心有限公司 | 有机发光显示装置、显示器及减少漏电流的方法 |
CN105976769A (zh) * | 2016-07-12 | 2016-09-28 | 武汉华星光电技术有限公司 | 液晶显示器及降低液晶显示器功耗的方法 |
CN109429411A (zh) * | 2017-09-01 | 2019-03-05 | 茂达电子股份有限公司 | 调光控制器与具有其之背光模块 |
CN109429411B (zh) * | 2017-09-01 | 2020-09-11 | 茂达电子股份有限公司 | 调光控制器与具有其之背光模块 |
CN109493811A (zh) * | 2018-12-25 | 2019-03-19 | 厦门天马微电子有限公司 | 一种显示装置及其驱动方法 |
CN112259042A (zh) * | 2019-07-22 | 2021-01-22 | 凹凸电子(武汉)有限公司 | 用于控制光源模块的控制器 |
CN112259042B (zh) * | 2019-07-22 | 2021-11-26 | 凹凸电子(武汉)有限公司 | 用于控制光源模块的控制器 |
CN110910843A (zh) * | 2019-12-20 | 2020-03-24 | 京东方科技集团股份有限公司 | 背光驱动电路及驱动方法、显示面板 |
CN110910843B (zh) * | 2019-12-20 | 2021-08-13 | 京东方科技集团股份有限公司 | 背光驱动电路及驱动方法、显示面板 |
CN112002287A (zh) * | 2020-08-31 | 2020-11-27 | 上海创功通讯技术有限公司 | 背光电路的亮度补偿方法、电子设备存储介质 |
CN114495848A (zh) * | 2022-03-07 | 2022-05-13 | 北京芯格诺微电子有限公司 | 基于占空比基准点设定的led背光调制方法 |
WO2023169009A1 (zh) * | 2022-03-07 | 2023-09-14 | 北京芯格诺微电子有限公司 | 基于占空比基准点设定的led背光调制方法 |
US11908397B2 (en) | 2022-03-07 | 2024-02-20 | X-Signal Integrated Co., Ltd. | LED backlight modulation method based on duty cycle reference point setting |
Also Published As
Publication number | Publication date |
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CN102629451B (zh) | 2015-02-11 |
WO2013166737A1 (zh) | 2013-11-14 |
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C06 | Publication | ||
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CP03 | Change of name, title or address | ||
CP03 | Change of name, title or address |
Address after: 518132 No. 9-2 Ming Avenue, Guangming New District, Guangdong, Shenzhen Patentee after: TCL China Star Optoelectronics Technology Co.,Ltd. Address before: 518000 Guangming Avenue, Guangming New District, Guangdong, Shenzhen 9-2, China Patentee before: Shenzhen China Star Optoelectronics Technology Co.,Ltd. |
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TR01 | Transfer of patent right |
Effective date of registration: 20210311 Address after: No.109, Kangping Road, Liuyang economic and Technological Development Zone, Changsha, Hunan 410300 Patentee after: Changsha Huike optoelectronics Co.,Ltd. Address before: 9-2 Tangming Avenue, Guangming New District, Shenzhen City, Guangdong Province Patentee before: TCL China Star Optoelectronics Technology Co.,Ltd. |