CN101635131A - 背光驱动电路及光源驱动单元 - Google Patents
背光驱动电路及光源驱动单元 Download PDFInfo
- Publication number
- CN101635131A CN101635131A CN200810142612A CN200810142612A CN101635131A CN 101635131 A CN101635131 A CN 101635131A CN 200810142612 A CN200810142612 A CN 200810142612A CN 200810142612 A CN200810142612 A CN 200810142612A CN 101635131 A CN101635131 A CN 101635131A
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- CN
- China
- Prior art keywords
- light source
- current
- circuit
- constant
- 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.)
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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
-
- 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]
- H05B45/30—Driver circuits
- H05B45/395—Linear regulators
-
- 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
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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)
- Liquid Crystal Display Device Control (AREA)
- Led Devices (AREA)
Abstract
Description
Claims (10)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2008101426129A CN101635131B (zh) | 2008-07-25 | 2008-07-25 | 背光驱动电路及光源驱动单元 |
US12/462,044 US8106603B2 (en) | 2008-07-25 | 2009-07-27 | Backlight driving circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2008101426129A CN101635131B (zh) | 2008-07-25 | 2008-07-25 | 背光驱动电路及光源驱动单元 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101635131A true CN101635131A (zh) | 2010-01-27 |
CN101635131B CN101635131B (zh) | 2011-12-21 |
Family
ID=41568032
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2008101426129A Active CN101635131B (zh) | 2008-07-25 | 2008-07-25 | 背光驱动电路及光源驱动单元 |
Country Status (2)
Country | Link |
---|---|
US (1) | US8106603B2 (zh) |
CN (1) | CN101635131B (zh) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101923821A (zh) * | 2010-09-28 | 2010-12-22 | 天津三星电子显示器有限公司 | 通过芯片内部模数转换检测液晶显示器背光电流的方法 |
CN102646395A (zh) * | 2012-04-27 | 2012-08-22 | 京东方科技集团股份有限公司 | 直下式背光源控制装置及控制方法 |
CN102932990A (zh) * | 2012-10-11 | 2013-02-13 | 上海聚纳科电子有限公司 | 带点矫正的led驱动电路 |
CN105430836A (zh) * | 2014-09-17 | 2016-03-23 | 控制技术有限公司 | 控制逆变器驱动器的功率输出的方法 |
WO2021008226A1 (zh) * | 2019-07-16 | 2021-01-21 | 青岛海信激光显示股份有限公司 | 激光投影设备 |
CN112654124A (zh) * | 2020-12-30 | 2021-04-13 | 广东奥普特科技股份有限公司 | 具有实时同步触发输出或警告输出的光源控制器及其方法 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN202454225U (zh) * | 2011-10-28 | 2012-09-26 | 深圳市华星光电技术有限公司 | Led背光驱动电路以及显示装置 |
TWI723834B (zh) * | 2020-04-07 | 2021-04-01 | 鄭錦池 | 用於顯示器及背光的發光元件封裝模組及顯示器 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3813144B2 (ja) | 2003-09-12 | 2006-08-23 | ローム株式会社 | 発光制御回路 |
US7332699B2 (en) | 2004-07-23 | 2008-02-19 | Avago Technologies Ecbu Ip (Singapore) Pte Ltd | Feed-forward methods and apparatus for setting the light intensities of one or more LEDs |
KR100603760B1 (ko) * | 2004-12-17 | 2006-07-24 | 삼성전자주식회사 | 디스플레이장치 및 그의 구동 펄스 제어 방법 |
JP4612452B2 (ja) * | 2005-03-30 | 2011-01-12 | Necディスプレイソリューションズ株式会社 | 液晶表示装置 |
US8760081B2 (en) * | 2005-08-02 | 2014-06-24 | Texas Instruments Incorporated | Systems and methods for backlight driving |
US7317403B2 (en) * | 2005-08-26 | 2008-01-08 | Philips Lumileds Lighting Company, Llc | LED light source for backlighting with integrated electronics |
KR101204865B1 (ko) * | 2005-10-26 | 2012-11-26 | 삼성디스플레이 주식회사 | 백라이트의 구동 장치, 백라이트 및 이를 구비한액정표시장치 및 백라이트 구동의 방법 |
CN100420348C (zh) | 2005-11-23 | 2008-09-17 | 圆创科技股份有限公司 | 发光二极管阵列的驱动电路及驱动方法 |
TW200737070A (en) * | 2006-02-23 | 2007-10-01 | Powerdsine Ltd | Voltage controlled backlight driver |
TW200807357A (en) * | 2006-07-17 | 2008-02-01 | Delta Electronics Inc | Backlight module and digital programmable control circuit thereof |
KR20080062421A (ko) * | 2006-12-29 | 2008-07-03 | 삼성전자주식회사 | 백라이트 구동 회로 및 이를 구비하는 액정 표시 장치 |
CN101060753B (zh) * | 2007-05-21 | 2010-06-02 | 炬力集成电路设计有限公司 | 一种用于背光亮度调节的驱动电路 |
US8324840B2 (en) * | 2009-06-04 | 2012-12-04 | Point Somee Limited Liability Company | Apparatus, method and system for providing AC line power to lighting devices |
US8410717B2 (en) * | 2009-06-04 | 2013-04-02 | Point Somee Limited Liability Company | Apparatus, method and system for providing AC line power to lighting devices |
US8587967B2 (en) * | 2009-06-10 | 2013-11-19 | Texas Instruments Incorporated | System and method for indirect control of a converter output |
-
2008
- 2008-07-25 CN CN2008101426129A patent/CN101635131B/zh active Active
-
2009
- 2009-07-27 US US12/462,044 patent/US8106603B2/en not_active Expired - Fee Related
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101923821A (zh) * | 2010-09-28 | 2010-12-22 | 天津三星电子显示器有限公司 | 通过芯片内部模数转换检测液晶显示器背光电流的方法 |
CN102646395A (zh) * | 2012-04-27 | 2012-08-22 | 京东方科技集团股份有限公司 | 直下式背光源控制装置及控制方法 |
WO2013159550A1 (zh) * | 2012-04-27 | 2013-10-31 | 京东方科技集团股份有限公司 | 直下式背光源控制装置及控制方法 |
CN102646395B (zh) * | 2012-04-27 | 2015-06-10 | 京东方科技集团股份有限公司 | 直下式背光源控制装置及控制方法 |
CN102932990A (zh) * | 2012-10-11 | 2013-02-13 | 上海聚纳科电子有限公司 | 带点矫正的led驱动电路 |
CN102932990B (zh) * | 2012-10-11 | 2016-06-22 | 上海聚纳科电子有限公司 | 带点矫正的led驱动电路 |
CN105430836A (zh) * | 2014-09-17 | 2016-03-23 | 控制技术有限公司 | 控制逆变器驱动器的功率输出的方法 |
WO2021008226A1 (zh) * | 2019-07-16 | 2021-01-21 | 青岛海信激光显示股份有限公司 | 激光投影设备 |
CN112654124A (zh) * | 2020-12-30 | 2021-04-13 | 广东奥普特科技股份有限公司 | 具有实时同步触发输出或警告输出的光源控制器及其方法 |
CN112654124B (zh) * | 2020-12-30 | 2024-01-05 | 广东奥普特科技股份有限公司 | 具有实时同步触发输出或警告输出的光源控制器及其方法 |
Also Published As
Publication number | Publication date |
---|---|
US20100019695A1 (en) | 2010-01-28 |
US8106603B2 (en) | 2012-01-31 |
CN101635131B (zh) | 2011-12-21 |
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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: QIMEI ELECTRONIC CO LTD Free format text: FORMER OWNER: INNOLUX DISPLAY CORPORATION |
|
C41 | Transfer of patent application or patent right or utility model | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20111021 Address after: 518109 Longhua, Shenzhen, town, Foxconn science and Technology Industrial Park E District, building 1, floor 4, Applicant after: Qunkang Technology (Shenzhen) Co., Ltd. Co-applicant after: Chimei Optoelectronics Co., Ltd. Address before: 518109 Longhua, Shenzhen, town, Foxconn science and Technology Industrial Park E District, building 1, floor 4, Applicant before: Qunkang Technology (Shenzhen) Co., Ltd. Co-applicant before: Innolux Display Group |
|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant |