FR2959323B3 - Module de commande de retroeclairage a del - Google Patents

Module de commande de retroeclairage a del

Info

Publication number
FR2959323B3
FR2959323B3 FR1056674A FR1056674A FR2959323B3 FR 2959323 B3 FR2959323 B3 FR 2959323B3 FR 1056674 A FR1056674 A FR 1056674A FR 1056674 A FR1056674 A FR 1056674A FR 2959323 B3 FR2959323 B3 FR 2959323B3
Authority
FR
France
Prior art keywords
control module
backlight control
led backlight
led
module
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 - Lifetime
Application number
FR1056674A
Other languages
English (en)
Other versions
FR2959323A3 (fr
Inventor
Wen-Sheng Chen
Chih-Lung Liu
Ming-An Chiu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lite On Electronics Guangzhou Co Ltd
Lite On Technology Corp
Original Assignee
Silitek Electronic Guangzhou Co Ltd
Lite On Technology Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Silitek Electronic Guangzhou Co Ltd, Lite On Technology Corp filed Critical Silitek Electronic Guangzhou Co Ltd
Publication of FR2959323A3 publication Critical patent/FR2959323A3/fr
Application granted granted Critical
Publication of FR2959323B3 publication Critical patent/FR2959323B3/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • 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]
    • 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
    • H05B45/14—Controlling the intensity of the light using electrical feedback from LEDs or from LED modules
    • 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]
    • H05B45/382—Switched mode power supply [SMPS] with galvanic isolation between input and output
    • 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
    • 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
    • H05B45/32—Pulse-control circuits
    • H05B45/325—Pulse-width modulation [PWM]

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
FR1056674A 2010-04-26 2010-08-19 Module de commande de retroeclairage a del Expired - Lifetime FR2959323B3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201010155409.2A CN102238768B (zh) 2010-04-26 2010-04-26 发光二极管背光源驱动模块

Publications (2)

Publication Number Publication Date
FR2959323A3 FR2959323A3 (fr) 2011-10-28
FR2959323B3 true FR2959323B3 (fr) 2012-05-18

Family

ID=42752556

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1056674A Expired - Lifetime FR2959323B3 (fr) 2010-04-26 2010-08-19 Module de commande de retroeclairage a del

Country Status (6)

Country Link
US (1) US8288961B2 (fr)
JP (1) JP3162409U (fr)
CN (1) CN102238768B (fr)
DE (1) DE202010005646U1 (fr)
FR (1) FR2959323B3 (fr)
GB (1) GB2479950B (fr)

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WO2012061052A1 (fr) * 2010-10-24 2012-05-10 Microsemi Corporation Régulation synchrone pour excitateur à chaîne de led
JP2012104314A (ja) * 2010-11-09 2012-05-31 Samsung Electronics Co Ltd Ｌｅｄバックライト装置
CN102186291B (zh) * 2011-04-18 2014-02-26 台达电子企业管理（上海）有限公司 驱动电路结构
TWI442812B (zh) * 2011-07-25 2014-06-21 Fsp Technology Inc 負載驅動裝置及其方法
CN102958221A (zh) * 2011-08-19 2013-03-06 台达电子企业管理（上海）有限公司 多信道发光二极管驱动电路
US20130082608A1 (en) * 2011-09-29 2013-04-04 Leviton Manufacturing Co., Inc. Dimming ballast and related method allowing individual control of multiple lamps
CN102984859B (zh) * 2012-11-16 2014-12-17 深圳和而泰照明科技有限公司 Led驱动电路及装置
KR101334042B1 (ko) * 2012-11-30 2013-11-28 주식회사 실리콘웍스 Ｌｅｄ 조명 장치 및 그의 전류 레귤레이터와 전류 레귤레이팅 방법
CN103152936B (zh) * 2013-02-25 2015-07-15 阳亮 单级电源led恒流驱动模拟电压调光电路
CN103152937A (zh) * 2013-02-25 2013-06-12 阳亮 单级电源led恒流驱动pwm输入调光电路
US9269306B2 (en) * 2013-03-29 2016-02-23 Shenzhen China Star Optoelectronics Technology Co., Ltd Backlight driving circuit, LCD device, and method for driving the backlight driving circuit
US9113523B2 (en) * 2013-05-15 2015-08-18 Iml International Light-emitting diode lighting device having multiple driving stages
US9226354B2 (en) 2013-06-03 2015-12-29 Iml International Light-emitting diode lighting device having multiple driving stages
US9585207B2 (en) 2014-07-11 2017-02-28 General Electric Company System and method for achieving precise regulation of multiple outputs in a multi-resonant LED driver stage
CN104244513A (zh) * 2014-08-07 2014-12-24 矽力杰半导体技术(杭州)有限公司 一种多路led恒流驱动电路、驱动方法及led驱动电源
KR20170006522A (ko) * 2015-07-08 2017-01-18 엘지이노텍 주식회사 입력 전원 감지 장치
CN105592595B (zh) * 2016-03-08 2017-06-27 深圳市华星光电技术有限公司 背光调光电路及液晶显示器
US10271392B2 (en) * 2017-05-16 2019-04-23 Shenzhen China Star Optoelectronics Technology Co., Ltd. LLC backlight driving control circuit
KR102385357B1 (ko) * 2017-07-21 2022-04-11 엘지이노텍 주식회사 Led 조명 장치, 그리고 그의 조광 제어 방법
KR102135128B1 (ko) * 2018-01-25 2020-07-17 주식회사 디엔씨아이 Ac/dc 컨버터 모듈을 가지는 조명 램프 시스템 및 전원 분배기
CN110351928B (zh) * 2019-07-16 2020-09-29 苏州中储普华电力科技有限公司 直流智能照明集中控制方法
CN115035867B (zh) * 2022-07-20 2023-04-28 绵阳惠科光电科技有限公司 背光驱动电路及方法、背光模组以及显示装置
EP4339932A1 (fr) 2022-07-20 2024-03-20 Mianyang Hkc Optoelectronics Technology Co., Ltd Circuit d'attaque de rétroéclairage, module de rétroéclairage et dispositif d'affichage

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2557465C (fr) * 2004-02-25 2015-05-19 Michael Miskin Diode electroluminescente a courant alternatif, procedes et appareil d'entrainement de del a courant alternatif
CN100472288C (zh) * 2006-07-31 2009-03-25 新巨企业股份有限公司 具有隔离型功因校正架构的背光驱动及控制电路
WO2008149275A1 (fr) * 2007-06-06 2008-12-11 Koninklijke Philips Electronics N.V. Dispositif d'attaque pour attaquer une pluralité de del
KR100861250B1 (ko) * 2008-02-01 2008-10-02 최승인 트랜스포머를 이용한 다수의 발광다이오드 점등회로
US7999486B2 (en) * 2008-03-17 2011-08-16 Himax Analogic, Inc. Driving circuit and method for light emitting diode
TW201004465A (en) * 2008-07-15 2010-01-16 Novatek Microelectronics Corp Light emitting device capable of decreasing manufacturing cost
CN101636018A (zh) * 2008-07-21 2010-01-27 达方电子股份有限公司 光源驱动电路及包含光源驱动电路的照明系统
JP2010225568A (ja) * 2009-02-26 2010-10-07 Sanken Electric Co Ltd 電流均衡化装置及びその方法、ｌｅｄ照明器具、ｌｃｄｂ／ｌモジュール、ｌｃｄ表示機器
KR101008458B1 (ko) * 2009-03-23 2011-01-14 삼성전기주식회사 Ｌｅｄ 구동 회로
TWI373779B (en) * 2009-04-27 2012-10-01 Delta Electronics Inc Current-balancing transformer and power supply circuit using the same
CN101848577B (zh) * 2010-03-16 2014-02-12 成都芯源系统有限公司 一种led驱动系统及驱动方法
JP5471752B2 (ja) * 2010-04-09 2014-04-16 サンケン電気株式会社 Ｌｅｄ駆動装置
KR101775162B1 (ko) * 2010-06-28 2017-09-05 로무 가부시키가이샤 부하 구동 회로 및 이를 이용한 발광 장치 및 디스플레이 장치

Also Published As

Publication number Publication date
GB201012222D0 (en) 2010-09-08
US8288961B2 (en) 2012-10-16
DE202010005646U1 (de) 2010-10-07
GB2479950A (en) 2011-11-02
CN102238768B (zh) 2014-04-09
JP3162409U (ja) 2010-09-02
CN102238768A (zh) 2011-11-09
FR2959323A3 (fr) 2011-10-28
US20110260645A1 (en) 2011-10-27
GB2479950B (en) 2014-08-06

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Legal Events

Date Code Title Description
CA Change of address

Effective date: 20140307

CD Change of name or company name

Owner name: LITE-ON TECHNOLOGY CORPORATION, TW

Effective date: 20140307

Owner name: LITE-ON ELECTRONICS (GANGZHOU) LIMITED, CN

Effective date: 20140307

PLFP Fee payment

Year of fee payment: 6