CN101013559A - 一种led亮度控制电路及液晶显示器背光源 - Google Patents
一种led亮度控制电路及液晶显示器背光源 Download PDFInfo
- Publication number
- CN101013559A CN101013559A CNA200710063162XA CN200710063162A CN101013559A CN 101013559 A CN101013559 A CN 101013559A CN A200710063162X A CNA200710063162X A CN A200710063162XA CN 200710063162 A CN200710063162 A CN 200710063162A CN 101013559 A CN101013559 A CN 101013559A
- Authority
- CN
- China
- Prior art keywords
- led
- resistance
- control
- control circuit
- circuit
- 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.)
- Pending
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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
-
- 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]
- H05B45/40—Details of LED load circuits
- H05B45/44—Details of LED load circuits with an active control inside an LED matrix
- H05B45/48—Details of LED load circuits with an active control inside an LED matrix having LEDs organised in strings and incorporating parallel shunting devices
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Liquid Crystal Display Device Control (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
Description
Claims (6)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNA200710063162XA CN101013559A (zh) | 2007-01-30 | 2007-01-30 | 一种led亮度控制电路及液晶显示器背光源 |
US11/956,978 US8183788B2 (en) | 2007-01-30 | 2007-12-14 | Led luminance control circuit and backlight source of liquid crystal display |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNA200710063162XA CN101013559A (zh) | 2007-01-30 | 2007-01-30 | 一种led亮度控制电路及液晶显示器背光源 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN101013559A true CN101013559A (zh) | 2007-08-08 |
Family
ID=38701039
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNA200710063162XA Pending CN101013559A (zh) | 2007-01-30 | 2007-01-30 | 一种led亮度控制电路及液晶显示器背光源 |
Country Status (2)
Country | Link |
---|---|
US (1) | US8183788B2 (zh) |
CN (1) | CN101013559A (zh) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101739958A (zh) * | 2008-11-24 | 2010-06-16 | 奇美电子股份有限公司 | 多区域动态背光驱动的装置及其方法 |
CN102640565A (zh) * | 2009-09-16 | 2012-08-15 | 电子研究私人有限公司 | 一种led显示系统 |
CN103155708A (zh) * | 2010-07-15 | 2013-06-12 | 绿色照明概念公司 | Led照明用整合电源集成电路 |
CN103179722A (zh) * | 2011-12-22 | 2013-06-26 | 海洋王照明科技股份有限公司 | 一种led灯驱动电路及灯具 |
CN103841704A (zh) * | 2012-11-23 | 2014-06-04 | 海洋王(东莞)照明科技有限公司 | Led灯具控制电路 |
WO2015039359A1 (zh) * | 2013-09-18 | 2015-03-26 | 深圳市华星光电技术有限公司 | 一种用于液晶显示装置的背光模组及其控制方法 |
WO2019223602A1 (zh) * | 2018-05-25 | 2019-11-28 | 京东方科技集团股份有限公司 | 背光驱动电路、方法、装置、存储介质及显示装置 |
CN111986625A (zh) * | 2020-08-05 | 2020-11-24 | 深圳市华星光电半导体显示技术有限公司 | 背光驱动电路及显示装置 |
CN112002287A (zh) * | 2020-08-31 | 2020-11-27 | 上海创功通讯技术有限公司 | 背光电路的亮度补偿方法、电子设备存储介质 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110157322A1 (en) | 2009-12-31 | 2011-06-30 | Broadcom Corporation | Controlling a pixel array to support an adaptable light manipulator |
US9247286B2 (en) | 2009-12-31 | 2016-01-26 | Broadcom Corporation | Frame formatting supporting mixed two and three dimensional video data communication |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2991893B2 (ja) * | 1993-05-31 | 1999-12-20 | 富士通株式会社 | 発光素子の駆動回路及びこれを用いた光増幅中継器 |
JP4241487B2 (ja) * | 2004-04-20 | 2009-03-18 | ソニー株式会社 | Led駆動装置、バックライト光源装置及びカラー液晶表示装置 |
US7339323B2 (en) * | 2005-04-29 | 2008-03-04 | 02Micro International Limited | Serial powering of an LED string |
JP5025913B2 (ja) * | 2005-05-13 | 2012-09-12 | シャープ株式会社 | Led駆動回路、led照明装置およびバックライト |
JP2006324534A (ja) * | 2005-05-20 | 2006-11-30 | Seiko Instruments Inc | 発光ダイオード駆動回路 |
KR101243427B1 (ko) * | 2006-03-03 | 2013-03-13 | 엘지디스플레이 주식회사 | 액정표시소자의 백라이트 어셈블리의 구동 장치 |
US7723926B2 (en) * | 2006-05-15 | 2010-05-25 | Supertex, Inc. | Shunting type PWM dimming circuit for individually controlling brightness of series connected LEDS operated at constant current and method therefor |
-
2007
- 2007-01-30 CN CNA200710063162XA patent/CN101013559A/zh active Pending
- 2007-12-14 US US11/956,978 patent/US8183788B2/en active Active
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101739958B (zh) * | 2008-11-24 | 2013-08-07 | 奇美电子股份有限公司 | 多区域动态背光驱动的装置及其方法 |
CN101739958A (zh) * | 2008-11-24 | 2010-06-16 | 奇美电子股份有限公司 | 多区域动态背光驱动的装置及其方法 |
CN102640565A (zh) * | 2009-09-16 | 2012-08-15 | 电子研究私人有限公司 | 一种led显示系统 |
CN103155708A (zh) * | 2010-07-15 | 2013-06-12 | 绿色照明概念公司 | Led照明用整合电源集成电路 |
CN103179722A (zh) * | 2011-12-22 | 2013-06-26 | 海洋王照明科技股份有限公司 | 一种led灯驱动电路及灯具 |
CN103179722B (zh) * | 2011-12-22 | 2016-10-05 | 海洋王照明科技股份有限公司 | 一种led灯驱动电路及灯具 |
CN103841704B (zh) * | 2012-11-23 | 2018-07-27 | 海洋王(东莞)照明科技有限公司 | Led灯具控制电路 |
CN103841704A (zh) * | 2012-11-23 | 2014-06-04 | 海洋王(东莞)照明科技有限公司 | Led灯具控制电路 |
WO2015039359A1 (zh) * | 2013-09-18 | 2015-03-26 | 深圳市华星光电技术有限公司 | 一种用于液晶显示装置的背光模组及其控制方法 |
WO2019223602A1 (zh) * | 2018-05-25 | 2019-11-28 | 京东方科技集团股份有限公司 | 背光驱动电路、方法、装置、存储介质及显示装置 |
US11132961B2 (en) | 2018-05-25 | 2021-09-28 | Beijing Boe Optoelectronics Technology Co., Ltd. | Backlight driving circuit, method and device, storage medium and display device |
CN111986625A (zh) * | 2020-08-05 | 2020-11-24 | 深圳市华星光电半导体显示技术有限公司 | 背光驱动电路及显示装置 |
US11832362B2 (en) | 2020-08-05 | 2023-11-28 | Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Backlight driving circuit and display device |
CN112002287A (zh) * | 2020-08-31 | 2020-11-27 | 上海创功通讯技术有限公司 | 背光电路的亮度补偿方法、电子设备存储介质 |
Also Published As
Publication number | Publication date |
---|---|
US8183788B2 (en) | 2012-05-22 |
US20080180461A1 (en) | 2008-07-31 |
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Owner name: JINGDONGFANG PHOTOELECTRIC SCIENCE & TECHNOLOGY C Free format text: FORMER OWNER: JINGDONGFANG SCIENCE AND TECHNOLOGY GROUP CO., LTD Effective date: 20071019 |
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Effective date of registration: 20071019 Address after: 100176 No. 8 West Central Road, Beijing economic and Technological Development Zone Applicant after: Beijing BOE Photoelectricity Science & Technology Co., Ltd. Co-applicant after: BOE Technology Group Co., Ltd. Address before: 100016 No. 10, Jiuxianqiao Road, Beijing, Chaoyang District Applicant before: BOE Technology Group Co., Ltd. |
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