CN103065588B - 一种led背光驱动电路和液晶显示装置 - Google Patents
一种led背光驱动电路和液晶显示装置 Download PDFInfo
- Publication number
- CN103065588B CN103065588B CN201210541244.1A CN201210541244A CN103065588B CN 103065588 B CN103065588 B CN 103065588B CN 201210541244 A CN201210541244 A CN 201210541244A CN 103065588 B CN103065588 B CN 103065588B
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- CN
- China
- Prior art keywords
- voltage
- lamp bar
- resistance
- gate
- led lamp
- 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 11
- 230000000087 stabilizing effect Effects 0.000 claims description 18
- 230000001681 protective effect Effects 0.000 claims description 14
- 230000007423 decrease Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
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
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/04—Display protection
-
- 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
- G09G3/36—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 using liquid crystals
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)
Abstract
Description
Claims (8)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210541244.1A CN103065588B (zh) | 2012-12-14 | 2012-12-14 | 一种led背光驱动电路和液晶显示装置 |
PCT/CN2012/086884 WO2014089855A1 (zh) | 2012-12-14 | 2012-12-18 | 一种led背光驱动电路和液晶显示装置 |
US13/809,431 US9198254B2 (en) | 2012-12-14 | 2012-12-18 | LED backlight driving circuit and LCD device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210541244.1A CN103065588B (zh) | 2012-12-14 | 2012-12-14 | 一种led背光驱动电路和液晶显示装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN103065588A CN103065588A (zh) | 2013-04-24 |
CN103065588B true CN103065588B (zh) | 2015-07-15 |
Family
ID=48108191
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201210541244.1A Active CN103065588B (zh) | 2012-12-14 | 2012-12-14 | 一种led背光驱动电路和液晶显示装置 |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN103065588B (zh) |
WO (1) | WO2014089855A1 (zh) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9257078B2 (en) | 2013-05-08 | 2016-02-09 | Shenzhen China Star Optoelectronics Technology Co., Ltd | LED backlight driving circuit having divider units and method for driving the LED backlight driving circuit |
CN103295537A (zh) * | 2013-05-08 | 2013-09-11 | 深圳市华星光电技术有限公司 | 一种led背光驱动电路、背光模组和液晶显示装置 |
CN105405410A (zh) * | 2015-11-20 | 2016-03-16 | 青岛海信电器股份有限公司 | 一种背光驱动电路及其驱动方法、显示装置 |
CN106953300B (zh) * | 2017-04-14 | 2019-04-16 | 深圳创维-Rgb电子有限公司 | 一种开关电源保护电路及显示设备 |
CN107222698A (zh) * | 2017-06-30 | 2017-09-29 | 深圳创维-Rgb电子有限公司 | 电视机的保护电路及电视机 |
CN107197569A (zh) * | 2017-07-25 | 2017-09-22 | 合肥惠科金扬科技有限公司 | 一种led背光驱动保护电路和显示设备 |
CN113396453A (zh) * | 2019-11-22 | 2021-09-14 | 京东方科技集团股份有限公司 | 背光控制电路、其驱动方法、背光模组及显示装置 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW200737066A (en) * | 2006-03-22 | 2007-10-01 | Beyond Innovation Tech Co Ltd | Driving circuit with protection module for back light module |
CN201393057Y (zh) * | 2009-03-04 | 2010-01-27 | 鸿富锦精密工业(深圳)有限公司 | 过压及欠压保护电路 |
CN101988934A (zh) * | 2009-07-30 | 2011-03-23 | 鸿富锦精密工业(深圳)有限公司 | 欠压侦测与报警电路 |
CN101715265B (zh) * | 2009-12-14 | 2013-08-14 | 海洋王照明科技股份有限公司 | 一种led驱动电源控制电路及使用该电路的led灯具 |
CN201910952U (zh) * | 2010-11-23 | 2011-07-27 | 深圳市科特科技股份有限公司 | 一种led驱动电路 |
KR20120081704A (ko) * | 2011-01-12 | 2012-07-20 | 엘지전자 주식회사 | 전원 제어 회로, 전원 제어 방법 및 디스플레이 장치 |
US8803432B2 (en) * | 2011-05-10 | 2014-08-12 | Lutron Electronics Co., Inc. | Method and apparatus for determining a target light intensity from a phase-control signal |
CN202353850U (zh) * | 2011-09-16 | 2012-07-25 | 欧司朗股份有限公司 | 过压识别模块、过压保护电路以及led驱动器 |
CN202307083U (zh) * | 2011-10-31 | 2012-07-04 | 青岛海尔光电有限公司 | Led驱动电路 |
-
2012
- 2012-12-14 CN CN201210541244.1A patent/CN103065588B/zh active Active
- 2012-12-18 WO PCT/CN2012/086884 patent/WO2014089855A1/zh active Application Filing
Also Published As
Publication number | Publication date |
---|---|
CN103065588A (zh) | 2013-04-24 |
WO2014089855A1 (zh) | 2014-06-19 |
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Legal Events
Date | Code | Title | Description |
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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 No. 9-2 Ming Avenue, Guangming New District, Guangdong, Shenzhen 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: 20210315 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 |