CN102737601B - 一种led背光驱动电路和液晶显示装置、制造方法 - Google Patents
一种led背光驱动电路和液晶显示装置、制造方法 Download PDFInfo
- Publication number
- CN102737601B CN102737601B CN201210207895.7A CN201210207895A CN102737601B CN 102737601 B CN102737601 B CN 102737601B CN 201210207895 A CN201210207895 A CN 201210207895A CN 102737601 B CN102737601 B CN 102737601B
- Authority
- CN
- China
- Prior art keywords
- led lamp
- lamp bar
- resistance
- led
- pressure reduction
- 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
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 238000005265 energy consumption Methods 0.000 description 7
- 102100024505 Bone morphogenetic protein 4 Human genes 0.000 description 2
- 101150017256 DVR1 gene Proteins 0.000 description 2
- 101100218954 Homo sapiens BMP4 gene Proteins 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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
- G09G3/342—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
- G09G3/3426—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines the different display panel areas being distributed in two dimensions, e.g. matrix
-
- 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]
- H05B45/40—Details of LED load circuits
- H05B45/44—Details of LED load circuits with an active control inside an LED matrix
- H05B45/46—Details of LED load circuits with an active control inside an LED matrix having LEDs disposed in parallel lines
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
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 (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210207895.7A CN102737601B (zh) | 2012-06-21 | 2012-06-21 | 一种led背光驱动电路和液晶显示装置、制造方法 |
US13/574,448 US20130342118A1 (en) | 2012-06-21 | 2012-06-26 | LED Backlight Driving Circuit, LCD Device, and Manufacturing Method |
PCT/CN2012/077500 WO2013189093A1 (zh) | 2012-06-21 | 2012-06-26 | 一种led背光驱动电路和液晶显示装置、制造方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210207895.7A CN102737601B (zh) | 2012-06-21 | 2012-06-21 | 一种led背光驱动电路和液晶显示装置、制造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN102737601A CN102737601A (zh) | 2012-10-17 |
CN102737601B true CN102737601B (zh) | 2015-07-15 |
Family
ID=46992982
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201210207895.7A Active CN102737601B (zh) | 2012-06-21 | 2012-06-21 | 一种led背光驱动电路和液晶显示装置、制造方法 |
Country Status (3)
Country | Link |
---|---|
US (1) | US20130342118A1 (zh) |
CN (1) | CN102737601B (zh) |
WO (1) | WO2013189093A1 (zh) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9271368B2 (en) | 2012-12-07 | 2016-02-23 | Bridgelux, Inc. | Method and apparatus for providing a passive color control scheme using blue and red emitters |
CN103118470A (zh) * | 2013-02-21 | 2013-05-22 | 四川长虹光电有限公司 | 一种支路电流均衡的led并联电路 |
CN104065247A (zh) * | 2013-03-21 | 2014-09-24 | 力博特公司 | 二极管并联电路 |
CN103851422A (zh) * | 2014-02-19 | 2014-06-11 | 北京京东方光电科技有限公司 | 用于背光源的发光组件、背光源和液晶显示装置 |
CN111798803A (zh) * | 2020-07-07 | 2020-10-20 | Tcl华星光电技术有限公司 | Led背光驱动电路、背光模组及液晶显示装置 |
CN116614914A (zh) * | 2022-11-16 | 2023-08-18 | 深圳市明九州照明科技有限公司 | 一种直流集中驱动照明系统 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN201403234Y (zh) * | 2009-05-05 | 2010-02-10 | 福州华映视讯有限公司 | 用于发光二极管背光系统的接口整合电路及其背光系统 |
CN201946274U (zh) * | 2011-01-21 | 2011-08-24 | 鲁红波 | 一种恒温恒流led驱动电路 |
CN102280089A (zh) * | 2011-08-18 | 2011-12-14 | 深圳市华星光电技术有限公司 | 一种led背光驱动方法、led背光驱动电路及液晶显示装置 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS556687A (en) * | 1978-06-29 | 1980-01-18 | Handotai Kenkyu Shinkokai | Traffic use display |
US6149283A (en) * | 1998-12-09 | 2000-11-21 | Rensselaer Polytechnic Institute (Rpi) | LED lamp with reflector and multicolor adjuster |
JP2004311635A (ja) * | 2003-04-04 | 2004-11-04 | Olympus Corp | 駆動装置及びそれを用いた照明装置、並びに、その照明装置を用いた表示装置 |
KR101361517B1 (ko) * | 2007-02-26 | 2014-02-24 | 삼성전자 주식회사 | 백라이트 유닛, 이를 포함하는 액정표시장치 및 그제어방법 |
US8487547B2 (en) * | 2008-04-24 | 2013-07-16 | Cypress Semiconductor Corporation | Lighting assembly, circuits and methods |
CN201185500Y (zh) * | 2008-05-09 | 2009-01-21 | 上海广电光电子有限公司 | 背光模组供电电路 |
JP4586905B2 (ja) * | 2008-08-13 | 2010-11-24 | ソニー株式会社 | 発光ダイオード駆動装置 |
DE102009018428A1 (de) * | 2009-04-22 | 2010-10-28 | Vishay Electronic Gmbh | Schaltung für eine Leuchtdiodenanordnung und Leuchtdiodenmodul |
US8427073B2 (en) * | 2009-05-27 | 2013-04-23 | Green Solution Technology Co., Ltd. | LED driving circuit and backlight module |
CN201638533U (zh) * | 2010-03-25 | 2010-11-17 | 广东美的电器股份有限公司 | Led背光显示控制设备 |
TW201143513A (en) * | 2010-05-24 | 2011-12-01 | Delta Electronics Inc | Light source module |
KR20120067026A (ko) * | 2010-12-15 | 2012-06-25 | 삼성전자주식회사 | 백라이트 유닛 |
-
2012
- 2012-06-21 CN CN201210207895.7A patent/CN102737601B/zh active Active
- 2012-06-26 WO PCT/CN2012/077500 patent/WO2013189093A1/zh active Application Filing
- 2012-06-26 US US13/574,448 patent/US20130342118A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN201403234Y (zh) * | 2009-05-05 | 2010-02-10 | 福州华映视讯有限公司 | 用于发光二极管背光系统的接口整合电路及其背光系统 |
CN201946274U (zh) * | 2011-01-21 | 2011-08-24 | 鲁红波 | 一种恒温恒流led驱动电路 |
CN102280089A (zh) * | 2011-08-18 | 2011-12-14 | 深圳市华星光电技术有限公司 | 一种led背光驱动方法、led背光驱动电路及液晶显示装置 |
Also Published As
Publication number | Publication date |
---|---|
WO2013189093A1 (zh) | 2013-12-27 |
US20130342118A1 (en) | 2013-12-26 |
CN102737601A (zh) | 2012-10-17 |
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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 | ||
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 Guangming Avenue, Guangming New District, Guangdong, Shenzhen 9-2, China Patentee before: Shenzhen China Star Optoelectronics Technology Co.,Ltd. |
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CP03 | Change of name, title or address | ||
TR01 | Transfer of patent right |
Effective date of registration: 20210308 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 |