CN101541117B - 具有led亮度控制功能的电子装置及控制方法 - Google Patents
具有led亮度控制功能的电子装置及控制方法 Download PDFInfo
- Publication number
- CN101541117B CN101541117B CN2008100661564A CN200810066156A CN101541117B CN 101541117 B CN101541117 B CN 101541117B CN 2008100661564 A CN2008100661564 A CN 2008100661564A CN 200810066156 A CN200810066156 A CN 200810066156A CN 101541117 B CN101541117 B CN 101541117B
- Authority
- CN
- China
- Prior art keywords
- control signal
- superbright degree
- output
- degree control
- 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.)
- Expired - Fee Related
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Classifications
-
- 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
- H05B45/37—Converter circuits
- H05B45/3725—Switched mode power supply [SMPS]
-
- 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
- Control Of El Displays (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Led Devices (AREA)
Abstract
Description
Claims (11)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2008100661564A CN101541117B (zh) | 2008-03-21 | 2008-03-21 | 具有led亮度控制功能的电子装置及控制方法 |
US12/406,054 US8111007B2 (en) | 2008-03-21 | 2009-03-17 | Electronic device capable of controlling LED brightness and method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2008100661564A CN101541117B (zh) | 2008-03-21 | 2008-03-21 | 具有led亮度控制功能的电子装置及控制方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101541117A CN101541117A (zh) | 2009-09-23 |
CN101541117B true CN101541117B (zh) | 2013-07-03 |
Family
ID=41088188
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2008100661564A Expired - Fee Related CN101541117B (zh) | 2008-03-21 | 2008-03-21 | 具有led亮度控制功能的电子装置及控制方法 |
Country Status (2)
Country | Link |
---|---|
US (1) | US8111007B2 (zh) |
CN (1) | CN101541117B (zh) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102687368A (zh) * | 2010-01-05 | 2012-09-19 | 环态源环境科技有限公司 | 电池供电装置 |
US20120038293A1 (en) * | 2010-02-16 | 2012-02-16 | Salvatore Guerrieri | LED Lighting Device |
TWI445444B (zh) * | 2011-09-27 | 2014-07-11 | Hannstar Display Corp | 發光二極體驅動電路 |
CN102591118A (zh) * | 2011-12-15 | 2012-07-18 | 四川长虹电器股份有限公司 | 一种投影机使用的led光源保护装置及方法 |
KR101753648B1 (ko) | 2012-03-29 | 2017-07-04 | 인텔 코포레이션 | 자기 상태 엘리먼트 및 회로 |
EP2648482A1 (en) * | 2012-04-05 | 2013-10-09 | Koninklijke Philips N.V. | LED lighting system |
US8988340B2 (en) * | 2013-03-16 | 2015-03-24 | VIZIO Inc. | Controlling color and white temperature in an LCD display modulating supply current frequency |
KR102071004B1 (ko) * | 2013-09-03 | 2020-01-30 | 삼성디스플레이 주식회사 | Dc-dc 컨버터 및 이를 포함하는 유기전계발광 표시장치 |
CN104519633B (zh) * | 2013-09-29 | 2017-08-25 | 赛尔富电子有限公司 | 一种用于led灯具的欠压保护电路 |
CN106601194A (zh) * | 2016-12-19 | 2017-04-26 | 珠海市魅族科技有限公司 | 一种lcd的亮度调节方法和装置 |
CN112233627B (zh) * | 2020-12-14 | 2021-04-20 | 北京显芯科技有限公司 | 背光电路的控制方法、背光电路以及lcd显示屏 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2530283Y (zh) * | 2001-08-24 | 2003-01-08 | 毛宏建 | 遥控壁挂式多功能电脑万年历 |
CN2685990Y (zh) * | 2004-02-06 | 2005-03-16 | 林上港 | 遥控手控多用途室内数显限时仪 |
CN200996578Y (zh) * | 2006-09-28 | 2007-12-26 | 南京汉德森科技股份有限公司 | 大功率led舞台灯 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4052998B2 (ja) * | 2003-11-25 | 2008-02-27 | シャープ株式会社 | 電源回路及びそれを用いた電子機器 |
US7276861B1 (en) * | 2004-09-21 | 2007-10-02 | Exclara, Inc. | System and method for driving LED |
US7259525B2 (en) * | 2005-11-03 | 2007-08-21 | System General Corporation | High efficiency switching LED driver |
JP4207986B2 (ja) * | 2006-06-28 | 2009-01-14 | 双葉電子工業株式会社 | 蛍光表示装置とその駆動方法 |
US7528555B2 (en) * | 2007-08-01 | 2009-05-05 | Micrel, Inc. | LED controller IC using only one pin to dim and set a maximum LED current |
US7956554B2 (en) * | 2007-09-21 | 2011-06-07 | Exclara, Inc. | System and method for regulation of solid state lighting |
-
2008
- 2008-03-21 CN CN2008100661564A patent/CN101541117B/zh not_active Expired - Fee Related
-
2009
- 2009-03-17 US US12/406,054 patent/US8111007B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2530283Y (zh) * | 2001-08-24 | 2003-01-08 | 毛宏建 | 遥控壁挂式多功能电脑万年历 |
CN2685990Y (zh) * | 2004-02-06 | 2005-03-16 | 林上港 | 遥控手控多用途室内数显限时仪 |
CN200996578Y (zh) * | 2006-09-28 | 2007-12-26 | 南京汉德森科技股份有限公司 | 大功率led舞台灯 |
Also Published As
Publication number | Publication date |
---|---|
CN101541117A (zh) | 2009-09-23 |
US20090237005A1 (en) | 2009-09-24 |
US8111007B2 (en) | 2012-02-07 |
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Addressee: Li Xiaoguang Document name: Notification of Passing Preliminary Examination of the Application for Invention |
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SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: HONGFUJIN PRECISE INDUSTRY (SHENZHEN) CO., LTD. Free format text: FORMER OWNER: PENGZHI TECHNOLOGY (SHENZHEN) CO., LTD. Effective date: 20140626 Free format text: FORMER OWNER: JINTIAN TECHNOLOGY CO., LTD. Effective date: 20140626 |
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C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20140626 Address after: 518109 Guangdong city of Shenzhen province Baoan District Longhua Town Industrial Zone tabulaeformis tenth East Ring Road No. 2 two Patentee after: Hongfujin Precise Industry (Shenzhen) Co., Ltd. Address before: 518109, Guangdong, Baoan District province Longhua Shenzhen Street tenth Industrial Zone, Ying Bo Factory Second, 1 to 3 layers Patentee before: Pengzhi Technology (Shenzhen) Co., Ltd. Patentee before: Aurora Technology Co., Ltd. |
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130703 Termination date: 20150321 |
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EXPY | Termination of patent right or utility model |