TW200739480A - Driving apparatus of light emitting diode and liquid crystal display using the same - Google Patents

Driving apparatus of light emitting diode and liquid crystal display using the same

Info

Publication number
TW200739480A
TW200739480A TW095143181A TW95143181A TW200739480A TW 200739480 A TW200739480 A TW 200739480A TW 095143181 A TW095143181 A TW 095143181A TW 95143181 A TW95143181 A TW 95143181A TW 200739480 A TW200739480 A TW 200739480A
Authority
TW
Taiwan
Prior art keywords
driving apparatus
liquid crystal
light emitting
crystal display
emitting diode
Prior art date
Application number
TW095143181A
Other languages
English (en)
Other versions
TWI358689B (en
Inventor
Eui-Yeol Oh
Haang-Rhym Chu
Original Assignee
Lg Philips Lcd Co Ltd
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 Lg Philips Lcd Co Ltd filed Critical Lg Philips Lcd Co Ltd
Publication of TW200739480A publication Critical patent/TW200739480A/zh
Application granted granted Critical
Publication of TWI358689B publication Critical patent/TWI358689B/zh

Links

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
    • G09G3/22—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 using controlled light sources
    • G09G3/30—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 using controlled light sources using electroluminescent panels
    • G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using 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]
    • H05B45/20—Controlling the colour of the light
    • 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
    • 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]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • H05B45/375—Switched mode power supply [SMPS] using buck topology
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

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 Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Liquid Crystal (AREA)
TW095143181A 2006-04-04 2006-11-22 Driving apparatus of light emitting diode and liqu TWI358689B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020060030474A KR100679410B1 (ko) 2006-04-04 2006-04-04 발광 다이오드의 구동 장치

Publications (2)

Publication Number Publication Date
TW200739480A true TW200739480A (en) 2007-10-16
TWI358689B TWI358689B (en) 2012-02-21

Family

ID=37594555

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095143181A TWI358689B (en) 2006-04-04 2006-11-22 Driving apparatus of light emitting diode and liqu

Country Status (8)

Country Link
US (1) US8018425B2 (zh)
JP (1) JP4772651B2 (zh)
KR (1) KR100679410B1 (zh)
CN (1) CN101051444B (zh)
DE (1) DE102006052726B4 (zh)
FR (1) FR2899425B1 (zh)
GB (2) GB0622265D0 (zh)
TW (1) TWI358689B (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI384903B (zh) * 2008-08-26 2013-02-01 Grenergy Opto Inc 光源驅動裝置
TWI391888B (zh) * 2008-04-15 2013-04-01 Radiant Opto Electronics Corp LED backlight uniform drive circuit

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KR101204861B1 (ko) * 2006-07-28 2012-11-26 삼성디스플레이 주식회사 백라이트 유닛 및 이를 포함하는 액정표시장치
KR101176533B1 (ko) * 2007-01-25 2012-08-24 삼성전자주식회사 펄스폭 변조 디밍 제어 방법 및 펄스폭 변조 디밍 제어기능을 갖는 디스플레이 장치
US9814109B2 (en) 2007-11-19 2017-11-07 Atmel Corporation Apparatus and technique for modular electronic display control
JP5320738B2 (ja) * 2007-12-28 2013-10-23 ソニー株式会社 発光制御システムおよび画像表示システム
KR100860565B1 (ko) 2008-01-24 2008-09-26 (주) 파워에이앤디 복수의 조명용 ｌｅｄ 제어 장치
JP5141277B2 (ja) 2008-02-08 2013-02-13 ソニー株式会社 点灯期間設定方法、表示パネルの駆動方法、バックライトの駆動方法、点灯期間設定装置、半導体デバイス、表示パネル及び電子機器
TWI383709B (zh) * 2008-02-21 2013-01-21 Chunghwa Picture Tubes Ltd 光源驅動模組及電路
TWI459858B (zh) 2008-06-24 2014-11-01 Eldolab Holding Bv 照明系統及發光二極體組件之控制單元
US8547321B2 (en) * 2008-07-23 2013-10-01 Apple Inc. LED backlight driver synchronization and power reduction
CN101730331B (zh) * 2008-10-10 2013-03-13 立锜科技股份有限公司 具有快速放电功能的升压驱动电路
CN101738784B (zh) * 2008-11-04 2011-11-16 展晶科技(深圳)有限公司 液晶显示器的发光二极管阵列、其驱动系统及液晶显示器
KR101511189B1 (ko) * 2008-11-18 2015-04-13 삼성디스플레이 주식회사 광원 구동 방법, 이를 수행하기 위한 광원 장치 및 이를 갖는 표시 장치
TWI394126B (zh) * 2008-12-08 2013-04-21 Chunghwa Picture Tubes Ltd 用於發光二極體背光系統之驅動電路
CN102265324B (zh) * 2009-01-08 2014-12-24 杜比实验室特许公司 通用背光单元控制
JP5190390B2 (ja) * 2009-01-27 2013-04-24 三菱電機株式会社 発光素子点灯制御装置
CN101841949B (zh) * 2009-03-20 2013-05-29 北京京东方光电科技有限公司 背光源驱动电路和驱动方法
US9860946B2 (en) * 2009-06-15 2018-01-02 Maxim Integrated Products, Inc. Circuit topology for driving high-voltage LED series connected strings
TW201101930A (en) * 2009-06-22 2011-01-01 Richard Landry Gray Power reforming methods and associated lights
KR101221583B1 (ko) * 2009-12-28 2013-01-14 엘지디스플레이 주식회사 백 라이트 유닛과 그 구동방법 및 이를 이용한 액정 표시 장치
CN102404903B (zh) * 2010-09-13 2014-03-12 台达电子工业股份有限公司 灯具驱动装置
JP5533642B2 (ja) * 2010-12-27 2014-06-25 Ｎｋワークス株式会社 Ｌｅｄ駆動回路
CN102629458A (zh) * 2011-10-21 2012-08-08 北京京东方光电科技有限公司 背光板电路、背光板以及发光二极管驱动器
CN103139969B (zh) * 2011-11-30 2015-05-06 海洋王照明科技股份有限公司 标识器及其控制电路
CN102610199A (zh) * 2012-03-15 2012-07-25 深圳麦格米特电气股份有限公司 一种led背光驱动电路
KR101331815B1 (ko) * 2012-03-16 2013-11-22 엘지디스플레이 주식회사 직하형 액정표시장치 및 직하형 액정표시장치 구동방법
US20140152902A1 (en) * 2012-12-01 2014-06-05 Lsi Industries, Inc. Systems and methods for display board control
AT14579U1 (de) * 2013-01-31 2016-01-15 Tridonic Gmbh & Co Kg Vorrichtung zum LED Betrieb
US10127858B1 (en) * 2014-06-01 2018-11-13 Bo Zhou Display systems and methods for three-dimensional and other imaging applications
CN104619087B (zh) * 2015-02-06 2017-03-29 无锡中感微电子股份有限公司 多led串驱动电路及其控制方法
CN106847191B (zh) * 2015-12-07 2020-03-10 厦门歌乐电子企业有限公司 一种亮度调节电路及显示设备
CN105898916B (zh) * 2016-04-08 2018-09-04 京东方科技集团股份有限公司 一种发光装置及其调节植物生长的方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI391888B (zh) * 2008-04-15 2013-04-01 Radiant Opto Electronics Corp LED backlight uniform drive circuit
TWI384903B (zh) * 2008-08-26 2013-02-01 Grenergy Opto Inc 光源驅動裝置

Also Published As

Publication number Publication date
GB0622611D0 (en) 2006-12-20
DE102006052726A1 (de) 2007-10-18
GB0622265D0 (en) 2006-12-20
JP2007281417A (ja) 2007-10-25
US20070229446A1 (en) 2007-10-04
GB2437111B (en) 2008-12-10
US8018425B2 (en) 2011-09-13
DE102006052726B4 (de) 2016-08-18
TWI358689B (en) 2012-02-21
FR2899425B1 (fr) 2017-05-19
FR2899425A1 (fr) 2007-10-05
JP4772651B2 (ja) 2011-09-14
CN101051444B (zh) 2011-05-18
GB2437111A (en) 2007-10-17
CN101051444A (zh) 2007-10-10
KR100679410B1 (ko) 2007-02-06

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees