CN101902855A - 发光二极管驱动电路及背光模块 - Google Patents
发光二极管驱动电路及背光模块 Download PDFInfo
- Publication number
- CN101902855A CN101902855A CN2010101870935A CN201010187093A CN101902855A CN 101902855 A CN101902855 A CN 101902855A CN 2010101870935 A CN2010101870935 A CN 2010101870935A CN 201010187093 A CN201010187093 A CN 201010187093A CN 101902855 A CN101902855 A CN 101902855A
- Authority
- CN
- China
- Prior art keywords
- current
- emitting diode
- led
- light
- switching signal
- 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
Images
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
- G09G3/3406—Control of illumination source
-
- 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
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/40—Details of LED load circuits
- H05B45/44—Details of LED load circuits with an active control inside an LED matrix
- H05B45/46—Details of LED load circuits with an active control inside an LED matrix having LEDs disposed in parallel 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
- 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
- G09G2320/0633—Adjustment of display parameters for control of overall brightness by amplitude modulation of the brightness of the illumination source
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Led Devices (AREA)
Abstract
Description
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2010101870935A CN101902855B (zh) | 2009-05-27 | 2010-05-26 | 发光二极管驱动电路及背光模块 |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200910145226 | 2009-05-27 | ||
CN200910145226.X | 2009-05-27 | ||
CN2010101870935A CN101902855B (zh) | 2009-05-27 | 2010-05-26 | 发光二极管驱动电路及背光模块 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101902855A true CN101902855A (zh) | 2010-12-01 |
CN101902855B CN101902855B (zh) | 2013-04-17 |
Family
ID=43219436
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2010101870935A Expired - Fee Related CN101902855B (zh) | 2009-05-27 | 2010-05-26 | 发光二极管驱动电路及背光模块 |
Country Status (2)
Country | Link |
---|---|
US (1) | US8427073B2 (zh) |
CN (1) | CN101902855B (zh) |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN201976295U (zh) * | 2011-01-11 | 2011-09-14 | 建准电机工业股份有限公司 | 灯具及其电源控制电路 |
CN102665328A (zh) * | 2012-04-16 | 2012-09-12 | 深圳市华星光电技术有限公司 | 背光模块的驱动电路及其应用的显示装置 |
CN102695326A (zh) * | 2011-03-22 | 2012-09-26 | 登丰微电子股份有限公司 | 具有保护功能的控制器及发光二极管驱动电路 |
CN103037569A (zh) * | 2011-09-30 | 2013-04-10 | 朗捷科技股份有限公司 | 分流型交流led驱动电路 |
CN103108444A (zh) * | 2011-11-15 | 2013-05-15 | 登丰微电子股份有限公司 | 发光二极管均流装置 |
WO2013181853A1 (zh) * | 2012-06-05 | 2013-12-12 | 深圳市华星光电技术有限公司 | 一种led背光系统及显示装置 |
CN103546143A (zh) * | 2012-07-09 | 2014-01-29 | 登丰微电子股份有限公司 | 反馈检测电路 |
CN103680444A (zh) * | 2013-12-06 | 2014-03-26 | 深圳市华星光电技术有限公司 | Led升压转换器及应用其的背光源led驱动装置 |
CN104137653A (zh) * | 2011-12-29 | 2014-11-05 | 首尔半导体株式会社 | Led发光设备 |
CN104582124A (zh) * | 2013-10-29 | 2015-04-29 | 登丰微电子股份有限公司 | 发光二极管驱动电路 |
WO2015172402A1 (zh) * | 2014-05-14 | 2015-11-19 | 深圳市华星光电技术有限公司 | 用于液晶显示设备的led背光源 |
US9489898B2 (en) | 2013-12-06 | 2016-11-08 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | LED boost converter and backlight LED driver device using the same |
CN106097986A (zh) * | 2016-08-23 | 2016-11-09 | 深圳市华星光电技术有限公司 | 一种背光驱动电路 |
CN106211485A (zh) * | 2016-08-31 | 2016-12-07 | 杰华特微电子(杭州)有限公司 | 电流控制电路及应用其的led驱动电路 |
CN106228923A (zh) * | 2016-08-02 | 2016-12-14 | 京东方科技集团股份有限公司 | 一种驱动电路、驱动方法及显示面板 |
CN106710531A (zh) * | 2017-01-19 | 2017-05-24 | 深圳市华星光电技术有限公司 | 背光控制电路及电子装置 |
CN107808628A (zh) * | 2016-09-08 | 2018-03-16 | 英飞凌科技股份有限公司 | 用于驱动若干个光源的方法及装置和计算机可读介质 |
CN115035867A (zh) * | 2022-07-20 | 2022-09-09 | 绵阳惠科光电科技有限公司 | 背光驱动电路及方法、背光模组以及显示装置 |
US11854501B1 (en) | 2022-07-20 | 2023-12-26 | Mianyang HKC Optoelectronics Technology Co., Ltd. | Backlight driving circut, backlight module and display device |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101681974B (zh) * | 2008-03-25 | 2012-11-28 | 罗姆股份有限公司 | 发光二极管的驱动电路 |
US8525774B2 (en) | 2009-10-28 | 2013-09-03 | Top Victory Investments Ltd. | Light-emitting diode (LED) driving circuit |
US8610368B2 (en) | 2009-12-21 | 2013-12-17 | Top Victory Investments Ltd. | Serial-type light-emitting diode (LED) device |
TW201238388A (en) | 2011-03-02 | 2012-09-16 | Green Solution Tech Co Ltd | LED driving circuit and short-circuit protection circuit |
CN102685969B (zh) * | 2011-03-15 | 2015-03-11 | 登丰微电子股份有限公司 | 发光二极管驱动电路及短路保护电路 |
CN102842287A (zh) * | 2011-06-20 | 2012-12-26 | 国琏电子(上海)有限公司 | 发光二极管驱动系统及使用其的显示设备 |
TWI431598B (zh) * | 2011-06-20 | 2014-03-21 | Ampower Technology Co Ltd | 發光二極體驅動系統及使用其的顯示裝置 |
TWI441140B (zh) * | 2011-07-18 | 2014-06-11 | Ampower Technology Co Ltd | 發光二極體驅動系統及使用其的顯示裝置 |
SG187290A1 (en) | 2011-08-02 | 2013-02-28 | Creative Tech Ltd | A drive system, a driver apparatus and a signal processing method for driving a device |
US8704449B2 (en) * | 2012-05-09 | 2014-04-22 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | LED backlight driving circuit, liquid crystal display device and driving circuit |
CN102737601B (zh) * | 2012-06-21 | 2015-07-15 | 深圳市华星光电技术有限公司 | 一种led背光驱动电路和液晶显示装置、制造方法 |
CN102708831A (zh) * | 2012-06-21 | 2012-10-03 | 深圳市华星光电技术有限公司 | 一种背光驱动电路、液晶显示模组及其制造方法 |
EP3324262B1 (en) * | 2012-08-23 | 2020-12-02 | ams AG | Electric circuit of a switchable current source |
US9245476B2 (en) * | 2013-04-24 | 2016-01-26 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Start control circuit, display panel driving circuit and display device |
CN105898916B (zh) * | 2016-04-08 | 2018-09-04 | 京东方科技集团股份有限公司 | 一种发光装置及其调节植物生长的方法 |
KR102636683B1 (ko) * | 2016-12-30 | 2024-02-14 | 엘지디스플레이 주식회사 | 유기 발광 다이오드 표시 장치 |
TWI596411B (zh) * | 2017-02-22 | 2017-08-21 | 瑞軒科技股份有限公司 | 背光裝置及其控制方法 |
WO2020246953A1 (en) * | 2019-06-03 | 2020-12-10 | Hewlett-Packard Development Company, L.P. | Display modes |
JP7265419B2 (ja) * | 2019-06-05 | 2023-04-26 | ローム株式会社 | 発光素子駆動装置 |
CN114141203B (zh) * | 2021-12-03 | 2023-04-07 | Tcl华星光电技术有限公司 | 背光驱动电路及显示装置 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1801300A (zh) * | 2006-01-16 | 2006-07-12 | 启攀微电子(上海)有限公司 | 一种具有自适应模式切换的并联led驱动电路 |
CN101123734A (zh) * | 2006-04-17 | 2008-02-13 | 三星Sdi株式会社 | 2维/3维图像显示设备、电子图像显示设备及其驱动方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4775912B2 (ja) * | 2007-07-06 | 2011-09-21 | 株式会社小糸製作所 | 車両用灯具の点灯制御装置 |
US7880404B2 (en) * | 2008-01-25 | 2011-02-01 | Micrel, Inc. | Controlling current through serial LEDs using a low voltage transistor when using a high voltage driver |
US7906913B2 (en) * | 2008-04-18 | 2011-03-15 | Osram Sylvania Inc. | Low loss input channel detection device for a direct current powered lighting system |
US7999487B2 (en) * | 2008-06-10 | 2011-08-16 | Allegro Microsystems, Inc. | Electronic circuit for driving a diode load with a predetermined average current |
US8044609B2 (en) * | 2008-12-31 | 2011-10-25 | 02Micro Inc | Circuits and methods for controlling LCD backlights |
-
2010
- 2010-05-25 US US12/786,823 patent/US8427073B2/en not_active Expired - Fee Related
- 2010-05-26 CN CN2010101870935A patent/CN101902855B/zh not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1801300A (zh) * | 2006-01-16 | 2006-07-12 | 启攀微电子(上海)有限公司 | 一种具有自适应模式切换的并联led驱动电路 |
CN101123734A (zh) * | 2006-04-17 | 2008-02-13 | 三星Sdi株式会社 | 2维/3维图像显示设备、电子图像显示设备及其驱动方法 |
Cited By (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN201976295U (zh) * | 2011-01-11 | 2011-09-14 | 建准电机工业股份有限公司 | 灯具及其电源控制电路 |
US8872441B2 (en) | 2011-03-22 | 2014-10-28 | Green Solution Technology Co., Ltd. | Controller and LED driving circuit with protection function |
CN102695326A (zh) * | 2011-03-22 | 2012-09-26 | 登丰微电子股份有限公司 | 具有保护功能的控制器及发光二极管驱动电路 |
CN102695326B (zh) * | 2011-03-22 | 2015-04-01 | 登丰微电子股份有限公司 | 具有保护功能的控制器及发光二极管驱动电路 |
CN103037569A (zh) * | 2011-09-30 | 2013-04-10 | 朗捷科技股份有限公司 | 分流型交流led驱动电路 |
CN103108444A (zh) * | 2011-11-15 | 2013-05-15 | 登丰微电子股份有限公司 | 发光二极管均流装置 |
CN103108444B (zh) * | 2011-11-15 | 2015-11-18 | 登丰微电子股份有限公司 | 发光二极管均流装置 |
US9516718B2 (en) | 2011-12-29 | 2016-12-06 | Seoul Semiconductor Co., Ltd. | LED luminescence apparatus |
CN104137653B (zh) * | 2011-12-29 | 2016-11-09 | 首尔半导体株式会社 | Led发光设备 |
CN104137653A (zh) * | 2011-12-29 | 2014-11-05 | 首尔半导体株式会社 | Led发光设备 |
US9713213B2 (en) | 2011-12-29 | 2017-07-18 | Seoul Semiconductor Co., Ltd. | LED luminescence apparatus |
CN102665328B (zh) * | 2012-04-16 | 2015-01-21 | 深圳市华星光电技术有限公司 | 背光模块的驱动电路及其应用的显示装置 |
CN102665328A (zh) * | 2012-04-16 | 2012-09-12 | 深圳市华星光电技术有限公司 | 背光模块的驱动电路及其应用的显示装置 |
WO2013181853A1 (zh) * | 2012-06-05 | 2013-12-12 | 深圳市华星光电技术有限公司 | 一种led背光系统及显示装置 |
CN103546143B (zh) * | 2012-07-09 | 2016-05-18 | 登丰微电子股份有限公司 | 反馈检测电路 |
CN103546143A (zh) * | 2012-07-09 | 2014-01-29 | 登丰微电子股份有限公司 | 反馈检测电路 |
CN104582124A (zh) * | 2013-10-29 | 2015-04-29 | 登丰微电子股份有限公司 | 发光二极管驱动电路 |
CN104582124B (zh) * | 2013-10-29 | 2018-04-06 | 登丰微电子股份有限公司 | 发光二极管驱动电路 |
US9489898B2 (en) | 2013-12-06 | 2016-11-08 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | LED boost converter and backlight LED driver device using the same |
CN103680444A (zh) * | 2013-12-06 | 2014-03-26 | 深圳市华星光电技术有限公司 | Led升压转换器及应用其的背光源led驱动装置 |
WO2015172402A1 (zh) * | 2014-05-14 | 2015-11-19 | 深圳市华星光电技术有限公司 | 用于液晶显示设备的led背光源 |
CN106228923A (zh) * | 2016-08-02 | 2016-12-14 | 京东方科技集团股份有限公司 | 一种驱动电路、驱动方法及显示面板 |
CN106097986A (zh) * | 2016-08-23 | 2016-11-09 | 深圳市华星光电技术有限公司 | 一种背光驱动电路 |
CN106211485A (zh) * | 2016-08-31 | 2016-12-07 | 杰华特微电子(杭州)有限公司 | 电流控制电路及应用其的led驱动电路 |
CN107808628A (zh) * | 2016-09-08 | 2018-03-16 | 英飞凌科技股份有限公司 | 用于驱动若干个光源的方法及装置和计算机可读介质 |
CN106710531A (zh) * | 2017-01-19 | 2017-05-24 | 深圳市华星光电技术有限公司 | 背光控制电路及电子装置 |
CN106710531B (zh) * | 2017-01-19 | 2019-11-05 | 深圳市华星光电技术有限公司 | 背光控制电路及电子装置 |
CN115035867A (zh) * | 2022-07-20 | 2022-09-09 | 绵阳惠科光电科技有限公司 | 背光驱动电路及方法、背光模组以及显示装置 |
US11854501B1 (en) | 2022-07-20 | 2023-12-26 | Mianyang HKC Optoelectronics Technology Co., Ltd. | Backlight driving circut, backlight module and display device |
Also Published As
Publication number | Publication date |
---|---|
US8427073B2 (en) | 2013-04-23 |
US20100301762A1 (en) | 2010-12-02 |
CN101902855B (zh) | 2013-04-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101902855B (zh) | 发光二极管驱动电路及背光模块 | |
CN101155450B (zh) | Led发光装置和控制所述装置的方法 | |
US10182486B2 (en) | LED drive circuit | |
TWI455646B (zh) | Current regulator and its control method | |
KR20170117372A (ko) | Led 조명 시스템을 위한 전류 스플리터 | |
CN103747576B (zh) | 一种led背光源驱动电路及其驱动方法 | |
RU2621883C1 (ru) | Система сд-подсветки и устройство отображения | |
TWI383709B (zh) | 光源驅動模組及電路 | |
CN106376143B (zh) | 一种单路恒流驱动控制多个led像素点的电路 | |
CN101146387B (zh) | 一种汽车背景光恒流总控驱动系统及驱动控制方法 | |
CN204231701U (zh) | 一种节能护眼led无级调光调色温电路 | |
CN104091570A (zh) | 背光电路及其驱动方法、背光模组、显示装置 | |
CN103379687A (zh) | 半导体电路以及半导体装置 | |
CN101763838A (zh) | 背光模块以及设定其驱动电流的方法 | |
CN101527988B (zh) | 光源驱动模块及电路 | |
JP2010021008A (ja) | Led照明装置 | |
CN106341921A (zh) | 调光控制器、照明系统和设备机器 | |
CN201563272U (zh) | 一种led调光驱动电路 | |
KR20090026564A (ko) | Led 구동회로 | |
TWI467548B (zh) | 背光模組與驅動電路及其驅動方法 | |
TWI420968B (zh) | 發光二極體驅動電路及背光模組 | |
US10143059B1 (en) | Circuit of dimming and toning based on a driver on board module | |
CN107018598B (zh) | 一种可设置地址、组、场景和调光参数的dali调光器 | |
CN106572562B (zh) | 一种单路恒流驱动控制多个led像素点的方法 | |
CN110996460A (zh) | 可调光调色温的led照明装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
ASS | Succession or assignment of patent right |
Owner name: NIKESEN MICRO ELECTRONIC CO., LTD. |
|
C41 | Transfer of patent application or patent right or utility model | ||
COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: TAIPEI COUNTY, TAIWAN, CHINA TO: NEW TAIPEI CITY, TAIWAN, CHINA |
|
TA01 | Transfer of patent application right |
Effective date of registration: 20110512 Address after: Chinese Taiwan New Taipei City Applicant after: Dengfeng Microelectronics Co., Ltd. Co-applicant after: Nikesen Micro electronic Co., Ltd. Address before: Taiwan County, Taipei, China Applicant before: Dengfeng Microelectronics Co., Ltd. |
|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20160526 |