CN102800298B - 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
- CN102800298B CN102800298B CN201210334433.1A CN201210334433A CN102800298B CN 102800298 B CN102800298 B CN 102800298B CN 201210334433 A CN201210334433 A CN 201210334433A CN 102800298 B CN102800298 B CN 102800298B
- Authority
- CN
- China
- Prior art keywords
- oxide
- semiconductor
- metal
- led
- electrically connected
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000004065 semiconductor Substances 0.000 claims abstract description 100
- 238000002955 isolation Methods 0.000 claims abstract description 58
- 230000003321 amplification Effects 0.000 claims description 15
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 229910044991 metal oxide Inorganic materials 0.000 abstract 1
- 150000004706 metal oxides Chemical class 0.000 abstract 1
- 239000004973 liquid crystal related substance Substances 0.000 description 15
- 238000010586 diagram Methods 0.000 description 3
- 230000005142 aphototropism Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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]
- H05B45/10—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
-
- 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 (5)
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 |
US13/699,728 US8742683B2 (en) | 2012-09-11 | 2012-09-21 | LED backlight driving circuit and LED backlight driving method |
DE112012006889.0T DE112012006889T5 (de) | 2012-09-11 | 2012-09-21 | LED-Hintergrundbeleuchtungs-Steuerschaltung und LED-Hintergrundbeleuchtungs-Steuerverfahren |
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 CN102800298A (zh) | 2012-11-28 |
CN102800298B true 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) |
Families Citing this family (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 |
CN108058388B (zh) * | 2017-12-25 | 2019-10-15 | 江南大学 | 基于arm微控制器的面成型3d打印机控制*** |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3685134B2 (ja) * | 2002-01-23 | 2005-08-17 | セイコーエプソン株式会社 | 液晶ディスプレイのバックライト制御装置および液晶ディスプレイ |
CN101841949B (zh) * | 2009-03-20 | 2013-05-29 | 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 |
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***有限公司 | 一种led驱动***及驱动方法 |
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***lcd背光驱动电路 |
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
Also Published As
Publication number | Publication date |
---|---|
WO2014040307A1 (zh) | 2014-03-20 |
DE112012006889T5 (de) | 2015-05-28 |
CN102800298A (zh) | 2012-11-28 |
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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 |
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 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 |
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 China Star Optoelectronics Technology Co.,Ltd. |
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TR01 | Transfer of patent right |