CN102800298A - Led背光驱动电路及led背光驱动方法 - Google Patents
Led背光驱动电路及led背光驱动方法 Download PDFInfo
- Publication number
- CN102800298A CN102800298A CN2012103344331A CN201210334433A CN102800298A CN 102800298 A CN102800298 A CN 102800298A CN 2012103344331 A CN2012103344331 A CN 2012103344331A CN 201210334433 A CN201210334433 A CN 201210334433A CN 102800298 A CN102800298 A CN 102800298A
- Authority
- CN
- China
- Prior art keywords
- oxide
- semiconductor
- metal
- led
- pin
- 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
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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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- 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]
- H05B45/10—Controlling the intensity of the light
-
- 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
- H05B45/397—Current mirror circuits
-
- 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]
- H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
- H05B45/56—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits involving measures to prevent abnormal temperature of the LEDs
-
- 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
- G09G2320/064—Adjustment of display parameters for control of overall brightness by time modulation of the brightness of the illumination source
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- 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)
- Led Devices (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
Description
Claims (10)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210334433.1A CN102800298B (zh) | 2012-09-11 | 2012-09-11 | Led背光驱动电路及led背光驱动方法 |
DE112012006889.0T DE112012006889T5 (de) | 2012-09-11 | 2012-09-21 | LED-Hintergrundbeleuchtungs-Steuerschaltung und LED-Hintergrundbeleuchtungs-Steuerverfahren |
US13/699,728 US8742683B2 (en) | 2012-09-11 | 2012-09-21 | LED backlight driving circuit and LED backlight driving method |
PCT/CN2012/081709 WO2014040307A1 (zh) | 2012-09-11 | 2012-09-21 | Led背光驱动电路及led背光驱动方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210334433.1A CN102800298B (zh) | 2012-09-11 | 2012-09-11 | Led背光驱动电路及led背光驱动方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN102800298A true CN102800298A (zh) | 2012-11-28 |
CN102800298B CN102800298B (zh) | 2014-03-19 |
Family
ID=47199390
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201210334433.1A Active CN102800298B (zh) | 2012-09-11 | 2012-09-11 | Led背光驱动电路及led背光驱动方法 |
Country Status (3)
Country | Link |
---|---|
CN (1) | CN102800298B (zh) |
DE (1) | DE112012006889T5 (zh) |
WO (1) | WO2014040307A1 (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104244505A (zh) * | 2013-06-21 | 2014-12-24 | 美中全照光电股份有限公司 | 发光二极管的驱动电路 |
CN108058388A (zh) * | 2017-12-25 | 2018-05-22 | 江南大学 | 基于arm微控制器的面成型3d打印机控制系统 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003215534A (ja) * | 2002-01-23 | 2003-07-30 | Seiko Epson Corp | 液晶ディスプレイのバックライト制御装置 |
CN101841949A (zh) * | 2009-03-20 | 2010-09-22 | 北京京东方光电科技有限公司 | 背光源驱动电路和驱动方法 |
CN201804537U (zh) * | 2010-08-02 | 2011-04-20 | 惠州Tcl移动通信有限公司 | 移动终端lcd背光的电流控制模块 |
CN102105008A (zh) * | 2011-01-04 | 2011-06-22 | 罗宏基 | 负载电流调节电路 |
CN201975051U (zh) * | 2011-03-17 | 2011-09-14 | 上海韦尔半导体股份有限公司 | 基于wd3114d与便携式系统lcd背光驱动电路 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI405502B (zh) * | 2009-08-13 | 2013-08-11 | Novatek Microelectronics Corp | 發光二極體的調光電路及其隔離型電壓產生器與調光方法 |
CN201563261U (zh) * | 2009-09-10 | 2010-08-25 | 康佳集团股份有限公司 | 一种led驱动控制电路 |
US20110101885A1 (en) * | 2009-11-02 | 2011-05-05 | Eric Yang | Led backlight circuit for lcd panels |
CN101848577B (zh) * | 2010-03-16 | 2014-02-12 | 成都芯源系统有限公司 | 一种led驱动系统及驱动方法 |
CN202394501U (zh) * | 2011-11-23 | 2012-08-22 | 深圳市华星光电技术有限公司 | Led背光驱动电路和led背光模组 |
CN102629451B (zh) * | 2012-05-09 | 2015-02-11 | 深圳市华星光电技术有限公司 | 一种led背光驱动电路、液晶显示装置及一种驱动方法 |
-
2012
- 2012-09-11 CN CN201210334433.1A patent/CN102800298B/zh active Active
- 2012-09-21 DE DE112012006889.0T patent/DE112012006889T5/de not_active Withdrawn
- 2012-09-21 WO PCT/CN2012/081709 patent/WO2014040307A1/zh active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003215534A (ja) * | 2002-01-23 | 2003-07-30 | Seiko Epson Corp | 液晶ディスプレイのバックライト制御装置 |
CN101841949A (zh) * | 2009-03-20 | 2010-09-22 | 北京京东方光电科技有限公司 | 背光源驱动电路和驱动方法 |
CN201804537U (zh) * | 2010-08-02 | 2011-04-20 | 惠州Tcl移动通信有限公司 | 移动终端lcd背光的电流控制模块 |
CN102105008A (zh) * | 2011-01-04 | 2011-06-22 | 罗宏基 | 负载电流调节电路 |
CN201975051U (zh) * | 2011-03-17 | 2011-09-14 | 上海韦尔半导体股份有限公司 | 基于wd3114d与便携式系统lcd背光驱动电路 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104244505A (zh) * | 2013-06-21 | 2014-12-24 | 美中全照光电股份有限公司 | 发光二极管的驱动电路 |
CN108058388A (zh) * | 2017-12-25 | 2018-05-22 | 江南大学 | 基于arm微控制器的面成型3d打印机控制系统 |
Also Published As
Publication number | Publication date |
---|---|
CN102800298B (zh) | 2014-03-19 |
WO2014040307A1 (zh) | 2014-03-20 |
DE112012006889T5 (de) | 2015-05-28 |
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C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
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 Huaxing Photoelectric Technology Co.,Ltd. Address before: 518000 No. 9-2 Ming Avenue, Guangming New District, Guangdong, Shenzhen Patentee before: Shenzhen China Star Optoelectronics Technology Co.,Ltd. |
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TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20210309 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 Huaxing Photoelectric Technology Co.,Ltd. |