CN101950541B - 背光模块及液晶显示器 - Google Patents
背光模块及液晶显示器 Download PDFInfo
- Publication number
- CN101950541B CN101950541B CN2010102255609A CN201010225560A CN101950541B CN 101950541 B CN101950541 B CN 101950541B CN 2010102255609 A CN2010102255609 A CN 2010102255609A CN 201010225560 A CN201010225560 A CN 201010225560A CN 101950541 B CN101950541 B CN 101950541B
- Authority
- CN
- China
- Prior art keywords
- switching signal
- electrically connected
- luminescence unit
- power end
- driving voltage
- 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
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 21
- 238000004020 luminiscence type Methods 0.000 claims description 38
- 230000001939 inductive effect Effects 0.000 claims description 30
- 230000007704 transition Effects 0.000 claims description 8
- 238000004146 energy storage Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 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]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
- H05B45/3725—Switched mode power supply [SMPS]
- H05B45/38—Switched mode power supply [SMPS] using boost topology
-
- 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]
- H05B45/39—Circuits containing inverter bridges
-
- 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)
Abstract
Description
Claims (8)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2010102255609A CN101950541B (zh) | 2010-07-12 | 2010-07-12 | 背光模块及液晶显示器 |
US12/996,342 US8912729B2 (en) | 2010-07-12 | 2010-09-01 | Backlight module and an LCD thereof |
PCT/CN2010/076523 WO2012006803A1 (zh) | 2010-07-12 | 2010-09-01 | 背光模块及液晶显示器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2010102255609A CN101950541B (zh) | 2010-07-12 | 2010-07-12 | 背光模块及液晶显示器 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101950541A CN101950541A (zh) | 2011-01-19 |
CN101950541B true CN101950541B (zh) | 2013-03-27 |
Family
ID=43454015
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2010102255609A Expired - Fee Related CN101950541B (zh) | 2010-07-12 | 2010-07-12 | 背光模块及液晶显示器 |
Country Status (3)
Country | Link |
---|---|
US (1) | US8912729B2 (zh) |
CN (1) | CN101950541B (zh) |
WO (1) | WO2012006803A1 (zh) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102222470B (zh) * | 2011-06-08 | 2013-03-13 | 深圳市华星光电技术有限公司 | 发光二极管的驱动电路及其应用的背光模块与显示装置 |
US8866404B2 (en) | 2011-06-08 | 2014-10-21 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Backlight module and display apparatus |
JP2017107253A (ja) * | 2014-04-14 | 2017-06-15 | シャープ株式会社 | 表示装置及び電子機器 |
CN204130143U (zh) * | 2014-09-19 | 2015-01-28 | 深圳Tcl新技术有限公司 | Led背光源升压驱动电路及液晶显示装置 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1909347A (zh) * | 2006-08-11 | 2007-02-07 | 友达光电股份有限公司 | 可调输出电压的直流对直流转换电路 |
CN101064469A (zh) * | 2006-04-29 | 2007-10-31 | 硕颉科技股份有限公司 | 直流转直流电源转换器 |
CN200980184Y (zh) * | 2006-07-13 | 2007-11-21 | 黄光昌 | 发光二极管的驱动电路 |
CN101154886A (zh) * | 2006-09-30 | 2008-04-02 | 硕颉科技股份有限公司 | 直流转直流转换电路及其控制器 |
CN101193479A (zh) * | 2006-11-30 | 2008-06-04 | 财团法人工业技术研究院 | 发光二极管的交流多相位驱动装置与控制方法 |
CN101202504A (zh) * | 2006-12-13 | 2008-06-18 | 统宝光电股份有限公司 | 直流-直流转换器 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5548206A (en) * | 1993-09-30 | 1996-08-20 | National Semiconductor Corporation | System and method for dual mode DC-DC power conversion |
US7138770B2 (en) * | 2004-12-27 | 2006-11-21 | Top Union Globaltek Inc. | LED driving circuit |
KR101245121B1 (ko) * | 2005-06-10 | 2013-03-25 | 에이저 시스템즈 엘엘시 | 저항 부하를 통한 전류 조정 |
KR100917623B1 (ko) | 2006-02-13 | 2009-09-17 | 삼성전자주식회사 | Led 구동장치 |
EP1994635B1 (en) * | 2006-03-06 | 2012-06-27 | Philips Intellectual Property & Standards GmbH | Supply circuit and device comprising a supply circuit |
KR101296637B1 (ko) | 2006-12-04 | 2013-08-14 | 엘지디스플레이 주식회사 | 액정표시장치 |
US8310218B2 (en) * | 2007-08-08 | 2012-11-13 | Advanced Analogic Technologies, Inc. | Time-multiplexed-capacitor DC/DC converter with multiple outputs |
CN101409044B (zh) | 2007-10-08 | 2011-07-13 | 中华映管股份有限公司 | 背光组件及其驱动方法 |
TW200929589A (en) | 2007-12-17 | 2009-07-01 | Delta Electronics Inc | Led package module capable of reducing operation temperature thereof |
CN101661709A (zh) | 2008-08-26 | 2010-03-03 | 奇美电子股份有限公司 | 液晶显示器及其发光二极管背光模块驱动装置与方法 |
TWI384904B (zh) | 2008-09-05 | 2013-02-01 | Macroblock Inc | The driving circuit of the light emitting diode |
-
2010
- 2010-07-12 CN CN2010102255609A patent/CN101950541B/zh not_active Expired - Fee Related
- 2010-09-01 WO PCT/CN2010/076523 patent/WO2012006803A1/zh active Application Filing
- 2010-09-01 US US12/996,342 patent/US8912729B2/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101064469A (zh) * | 2006-04-29 | 2007-10-31 | 硕颉科技股份有限公司 | 直流转直流电源转换器 |
CN200980184Y (zh) * | 2006-07-13 | 2007-11-21 | 黄光昌 | 发光二极管的驱动电路 |
CN1909347A (zh) * | 2006-08-11 | 2007-02-07 | 友达光电股份有限公司 | 可调输出电压的直流对直流转换电路 |
CN101154886A (zh) * | 2006-09-30 | 2008-04-02 | 硕颉科技股份有限公司 | 直流转直流转换电路及其控制器 |
CN101193479A (zh) * | 2006-11-30 | 2008-06-04 | 财团法人工业技术研究院 | 发光二极管的交流多相位驱动装置与控制方法 |
CN101202504A (zh) * | 2006-12-13 | 2008-06-18 | 统宝光电股份有限公司 | 直流-直流转换器 |
Also Published As
Publication number | Publication date |
---|---|
US20120007523A1 (en) | 2012-01-12 |
CN101950541A (zh) | 2011-01-19 |
WO2012006803A1 (zh) | 2012-01-19 |
US8912729B2 (en) | 2014-12-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101923841B (zh) | 背光模块以及液晶显示器 | |
CN102214432B (zh) | 电源管理与控制模块以及液晶显示器 | |
CN1988743B (zh) | 驱动发光二极管的装置 | |
US10028344B2 (en) | Backlight driving apparatus | |
US8896230B1 (en) | Backlight drive circuit with dual boost circuits | |
US8120288B2 (en) | Light emitting diode (LED) driving circuit | |
KR20050014377A (ko) | 전원장치와 그의 구동방법 및 이를 이용한 일렉트로루미네센스 표시소자의 구동장치 및 구동방법 | |
EP2177081A1 (en) | Solid state lighting system and a driver integrated circuit for driving light emitting semiconductor devices | |
CN101950541B (zh) | 背光模块及液晶显示器 | |
KR20140069638A (ko) | 백라이트 유닛 및 그것을 포함하는 표시 장치 | |
US20140266125A1 (en) | Buck-Boost Voltage Converter Circuits for Solid State Lighting Apparatus | |
CN102117599A (zh) | 适用于液晶显示面板的背光驱动电路 | |
CN101079237B (zh) | 用于液晶显示器控制装置的背光源驱动信号产生器 | |
CN105096840A (zh) | 背光驱动电路、背光驱动方法及显示装置 | |
KR20130074069A (ko) | 발광 다이오드 구동 장치 | |
CN102892222A (zh) | 发光装置及其驱动电路 | |
CN103379706A (zh) | 驱动电路 | |
US8704457B2 (en) | Power conversion circuit for light emitting diode | |
US8653744B2 (en) | Driving circuit for LCD backlight source | |
US20130271500A1 (en) | LED Backlight Driving Circuit, Backlight Module, and LCD Device | |
CN102682707A (zh) | 发光二极管节能装置 | |
CN201765806U (zh) | 一种液晶显示调光电路 | |
US9024532B2 (en) | Direct type LED backlight and liquid crystal display thereof | |
CA2807773C (en) | Led lamp compatible with fluorescent lamp fixture | |
US20120086358A1 (en) | Current control circuit for light emitting diodes |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Back light module and liquid crystal display device Effective date of registration: 20190426 Granted publication date: 20130327 Pledgee: Bank of Beijing Limited by Share Ltd. Shenzhen branch Pledgor: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY Co.,Ltd. Registration number: 2019440020032 |
|
PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20201016 Granted publication date: 20130327 Pledgee: Bank of Beijing Limited by Share Ltd. Shenzhen branch Pledgor: Shenzhen China Star Optoelectronics Technology Co.,Ltd. Registration number: 2019440020032 |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 |