CN102682721A - 一种led背光***及显示装置 - Google Patents
一种led背光***及显示装置 Download PDFInfo
- Publication number
- CN102682721A CN102682721A CN2012101833066A CN201210183306A CN102682721A CN 102682721 A CN102682721 A CN 102682721A CN 2012101833066 A CN2012101833066 A CN 2012101833066A CN 201210183306 A CN201210183306 A CN 201210183306A CN 102682721 A CN102682721 A CN 102682721A
- Authority
- CN
- China
- Prior art keywords
- module
- led lamp
- lamp string
- led
- current
- 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.)
- Granted
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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
-
- 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
-
- 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
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)
- Led Devices (AREA)
- Control Of El Displays (AREA)
Abstract
Description
Claims (10)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210183306.6A CN102682721B (zh) | 2012-06-05 | 2012-06-05 | 一种led背光***及显示装置 |
US13/521,712 US8911111B2 (en) | 2012-06-05 | 2012-06-11 | LED backlight system and display device |
DE112012006338.4T DE112012006338T5 (de) | 2012-06-05 | 2012-06-11 | LED-Hintergrundbeleuchtungssystem und Anzeigevorrichtung |
PCT/CN2012/076683 WO2013181853A1 (zh) | 2012-06-05 | 2012-06-11 | 一种led背光***及显示装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210183306.6A CN102682721B (zh) | 2012-06-05 | 2012-06-05 | 一种led背光***及显示装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN102682721A true CN102682721A (zh) | 2012-09-19 |
CN102682721B CN102682721B (zh) | 2014-10-29 |
Family
ID=46814548
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201210183306.6A Expired - Fee Related CN102682721B (zh) | 2012-06-05 | 2012-06-05 | 一种led背光***及显示装置 |
Country Status (3)
Country | Link |
---|---|
CN (1) | CN102682721B (zh) |
DE (1) | DE112012006338T5 (zh) |
WO (1) | WO2013181853A1 (zh) |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103327696A (zh) * | 2013-07-02 | 2013-09-25 | 深圳市华星光电技术有限公司 | 一种led背光驱动电路及其驱动方法、液晶显示装置 |
CN103687222A (zh) * | 2013-11-29 | 2014-03-26 | 青岛海信电器股份有限公司 | 背光驱动电路和电视机 |
WO2014075326A1 (zh) * | 2012-11-14 | 2014-05-22 | 深圳市华星光电技术有限公司 | 实现led灯条电流倍增的方法及其对应的驱动电路 |
WO2014094316A1 (zh) * | 2012-12-20 | 2014-06-26 | 深圳市华星光电技术有限公司 | 一种led背光驱动电路和液晶显示装置 |
US8803440B2 (en) | 2012-12-20 | 2014-08-12 | Shenzhen China Star Optoelectronics Technology Co., Ltd | LED backlight driving circuit and LCD device |
WO2015006963A1 (zh) * | 2013-07-15 | 2015-01-22 | 深圳市华星光电技术有限公司 | 一种led背光***及显示装置 |
CN104505034A (zh) * | 2014-12-18 | 2015-04-08 | 深圳市华星光电技术有限公司 | 液晶显示装置、背光模块及其背光源驱动电路 |
CN105096842A (zh) * | 2015-08-18 | 2015-11-25 | 京东方科技集团股份有限公司 | 一种led灯条驱动电路及其调光方法、背光模组及显示装置 |
WO2015192388A1 (zh) * | 2014-06-17 | 2015-12-23 | 深圳市华星光电技术有限公司 | 升压电路、led背光驱动电路以及液晶显示器 |
US9373284B2 (en) | 2013-07-02 | 2016-06-21 | Shenzhen China Star Optoelectronics Technology Co., Ltd | LED backlight driving circuit, LCD device, and method for driving the LED backlight driving circuit |
US9538593B2 (en) | 2012-11-14 | 2017-01-03 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Method for multiplying current of LED light bar and associated driving circuit thereof |
CN106997747A (zh) * | 2017-05-27 | 2017-08-01 | 京东方科技集团股份有限公司 | 一种有机发光显示面板及显示装置 |
CN110418071A (zh) * | 2019-08-28 | 2019-11-05 | 北京欧比邻科技有限公司 | 光学定位相机补光电路 |
WO2020224409A1 (zh) * | 2019-05-09 | 2020-11-12 | 京东方科技集团股份有限公司 | 背光驱动***、背光驱动方法和显示装置 |
CN112542141A (zh) * | 2020-12-01 | 2021-03-23 | Tcl华星光电技术有限公司 | 显示装置及其驱动方法 |
CN114005414A (zh) * | 2020-07-14 | 2022-02-01 | 奇景光电股份有限公司 | 背光模块及显示装置 |
CN114495807A (zh) * | 2020-10-26 | 2022-05-13 | 华为技术有限公司 | 一种驱动***、电子板、显示屏及电子设备 |
CN115132146A (zh) * | 2022-07-04 | 2022-09-30 | Tcl华星光电技术有限公司 | 发光器件驱动芯片、背光模组及显示面板 |
CN116312402A (zh) * | 2023-05-17 | 2023-06-23 | 中科(深圳)无线半导体有限公司 | 一种mini LED背光驱动方法 |
CN118155540A (zh) * | 2024-05-10 | 2024-06-07 | 惠科股份有限公司 | 驱动模组及显示装置 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104219835B (zh) * | 2014-08-25 | 2017-05-03 | 浙江生辉照明有限公司 | 一种led照明装置的驱动装置及驱动方法 |
CN106782292B (zh) * | 2016-11-30 | 2023-04-21 | 富满微电子集团股份有限公司 | 一种led显示屏及其显示控制装置与列控制电路 |
CN114173445B (zh) * | 2021-11-29 | 2023-12-22 | 四维生态科技(杭州)有限公司 | 一种基于电压调制的光谱调节***及方法 |
Citations (4)
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CN101261526A (zh) * | 2008-04-17 | 2008-09-10 | 上海威廉照明电气有限公司 | 增强型电压调节恒流器件及其构成的恒流电源 |
US20090189539A1 (en) * | 2008-01-25 | 2009-07-30 | Micrel, Inc. | Controlling Current Through Serial LEDs Using a Low Voltage Transistor When Using a High Voltage Driver |
CN101778513A (zh) * | 2010-02-05 | 2010-07-14 | 海洋王照明科技股份有限公司 | 一种led均流控制电路及led驱动模块和助航灯 |
CN102014542A (zh) * | 2009-12-17 | 2011-04-13 | 成都芯源***有限公司 | 用于多串led的电流控制装置及方法 |
Family Cites Families (7)
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DE19930174A1 (de) * | 1999-06-30 | 2001-01-04 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Ansteuerschaltung für LED und zugehöriges Betriebsverfahren |
JP4994253B2 (ja) * | 2008-01-24 | 2012-08-08 | 株式会社ジャパンディスプレイイースト | 液晶表示装置 |
US8044609B2 (en) * | 2008-12-31 | 2011-10-25 | 02Micro Inc | Circuits and methods for controlling LCD backlights |
SI2247161T1 (sl) * | 2009-04-28 | 2014-08-29 | Odelo Gmbh | Zaznava napak svetilnih naprav v svetilih motornih vozil |
US8427073B2 (en) * | 2009-05-27 | 2013-04-23 | Green Solution Technology Co., Ltd. | LED driving circuit and backlight module |
KR101101683B1 (ko) * | 2009-12-16 | 2011-12-30 | 삼성전기주식회사 | Pwm를 이용한 발광 소자 구동 장치 |
CN201984790U (zh) * | 2011-04-20 | 2011-09-21 | 青岛海信电器股份有限公司 | 驱动电路以及液晶电视机 |
-
2012
- 2012-06-05 CN CN201210183306.6A patent/CN102682721B/zh not_active Expired - Fee Related
- 2012-06-11 DE DE112012006338.4T patent/DE112012006338T5/de not_active Withdrawn
- 2012-06-11 WO PCT/CN2012/076683 patent/WO2013181853A1/zh active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090189539A1 (en) * | 2008-01-25 | 2009-07-30 | Micrel, Inc. | Controlling Current Through Serial LEDs Using a Low Voltage Transistor When Using a High Voltage Driver |
CN101261526A (zh) * | 2008-04-17 | 2008-09-10 | 上海威廉照明电气有限公司 | 增强型电压调节恒流器件及其构成的恒流电源 |
CN102014542A (zh) * | 2009-12-17 | 2011-04-13 | 成都芯源***有限公司 | 用于多串led的电流控制装置及方法 |
CN101778513A (zh) * | 2010-02-05 | 2010-07-14 | 海洋王照明科技股份有限公司 | 一种led均流控制电路及led驱动模块和助航灯 |
Cited By (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014075326A1 (zh) * | 2012-11-14 | 2014-05-22 | 深圳市华星光电技术有限公司 | 实现led灯条电流倍增的方法及其对应的驱动电路 |
US9538593B2 (en) | 2012-11-14 | 2017-01-03 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Method for multiplying current of LED light bar and associated driving circuit thereof |
US8803440B2 (en) | 2012-12-20 | 2014-08-12 | Shenzhen China Star Optoelectronics Technology Co., Ltd | LED backlight driving circuit and LCD device |
WO2014094316A1 (zh) * | 2012-12-20 | 2014-06-26 | 深圳市华星光电技术有限公司 | 一种led背光驱动电路和液晶显示装置 |
CN103327696A (zh) * | 2013-07-02 | 2013-09-25 | 深圳市华星光电技术有限公司 | 一种led背光驱动电路及其驱动方法、液晶显示装置 |
CN103327696B (zh) * | 2013-07-02 | 2016-01-27 | 深圳市华星光电技术有限公司 | 一种led背光驱动电路及其驱动方法、液晶显示装置 |
US9373284B2 (en) | 2013-07-02 | 2016-06-21 | Shenzhen China Star Optoelectronics Technology Co., Ltd | LED backlight driving circuit, LCD device, and method for driving the LED backlight driving circuit |
KR101789946B1 (ko) | 2013-07-15 | 2017-10-25 | 센젠 차이나 스타 옵토일렉트로닉스 테크놀로지 컴퍼니 리미티드 | Led 백라이트시스템 및 디스플레이 장치 |
WO2015006963A1 (zh) * | 2013-07-15 | 2015-01-22 | 深圳市华星光电技术有限公司 | 一种led背光***及显示装置 |
GB2529978B (en) * | 2013-07-15 | 2020-02-26 | Shenzhen China Star Optoelect | LED Backlight system and display device |
RU2621883C1 (ru) * | 2013-07-15 | 2017-06-07 | Шэньчжэнь Чайна Стар Оптоэлектроникс Текнолоджи Ко., Лтд. | Система сд-подсветки и устройство отображения |
GB2529978A (en) * | 2013-07-15 | 2016-03-09 | Shenzhen China Star Optoelect | LED Backlight system and display apparatus |
CN103687222A (zh) * | 2013-11-29 | 2014-03-26 | 青岛海信电器股份有限公司 | 背光驱动电路和电视机 |
CN103687222B (zh) * | 2013-11-29 | 2017-02-08 | 青岛海信电器股份有限公司 | 背光驱动电路和电视机 |
WO2015192388A1 (zh) * | 2014-06-17 | 2015-12-23 | 深圳市华星光电技术有限公司 | 升压电路、led背光驱动电路以及液晶显示器 |
CN104505034A (zh) * | 2014-12-18 | 2015-04-08 | 深圳市华星光电技术有限公司 | 液晶显示装置、背光模块及其背光源驱动电路 |
CN105096842A (zh) * | 2015-08-18 | 2015-11-25 | 京东方科技集团股份有限公司 | 一种led灯条驱动电路及其调光方法、背光模组及显示装置 |
CN106997747B (zh) * | 2017-05-27 | 2019-01-01 | 京东方科技集团股份有限公司 | 一种有机发光显示面板及显示装置 |
CN106997747A (zh) * | 2017-05-27 | 2017-08-01 | 京东方科技集团股份有限公司 | 一种有机发光显示面板及显示装置 |
US10950173B2 (en) | 2017-05-27 | 2021-03-16 | Ordos Yuansheng Optoelectronics Co., Ltd. | Organic light-emitting display panel and display device |
WO2020224409A1 (zh) * | 2019-05-09 | 2020-11-12 | 京东方科技集团股份有限公司 | 背光驱动***、背光驱动方法和显示装置 |
CN110418071A (zh) * | 2019-08-28 | 2019-11-05 | 北京欧比邻科技有限公司 | 光学定位相机补光电路 |
CN114005414A (zh) * | 2020-07-14 | 2022-02-01 | 奇景光电股份有限公司 | 背光模块及显示装置 |
CN114495807A (zh) * | 2020-10-26 | 2022-05-13 | 华为技术有限公司 | 一种驱动***、电子板、显示屏及电子设备 |
CN112542141A (zh) * | 2020-12-01 | 2021-03-23 | Tcl华星光电技术有限公司 | 显示装置及其驱动方法 |
US11705055B2 (en) | 2020-12-01 | 2023-07-18 | Tcl China Star Optoelectronics Technology Co., Ltd. | Display device and method of driving thereof |
CN115132146A (zh) * | 2022-07-04 | 2022-09-30 | Tcl华星光电技术有限公司 | 发光器件驱动芯片、背光模组及显示面板 |
CN115132146B (zh) * | 2022-07-04 | 2024-06-21 | Tcl华星光电技术有限公司 | 发光器件驱动芯片、背光模组及显示面板 |
CN116312402A (zh) * | 2023-05-17 | 2023-06-23 | 中科(深圳)无线半导体有限公司 | 一种mini LED背光驱动方法 |
CN116312402B (zh) * | 2023-05-17 | 2023-08-29 | 中科(深圳)无线半导体有限公司 | 一种mini LED背光驱动方法 |
CN118155540A (zh) * | 2024-05-10 | 2024-06-07 | 惠科股份有限公司 | 驱动模组及显示装置 |
Also Published As
Publication number | Publication date |
---|---|
DE112012006338T5 (de) | 2015-01-29 |
CN102682721B (zh) | 2014-10-29 |
WO2013181853A1 (zh) | 2013-12-12 |
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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: LED backlight system and display device Effective date of registration: 20190426 Granted publication date: 20141029 Pledgee: Bank of Beijing Limited by Share Ltd. Shenzhen branch Pledgor: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY Co.,Ltd. Registration number: 2019440020032 |
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Date of cancellation: 20201016 Granted publication date: 20141029 Pledgee: Bank of Beijing Limited by Share Ltd. Shenzhen branch Pledgor: Shenzhen China Star Optoelectronics Technology Co.,Ltd. Registration number: 2019440020032 |
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Granted publication date: 20141029 |