JP2006504245A - 光放射表示装置の輝度を制御するためのパワー線形技術 - Google Patents

光放射表示装置の輝度を制御するためのパワー線形技術 Download PDF

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Publication number
JP2006504245A
JP2006504245A JP2004548398A JP2004548398A JP2006504245A JP 2006504245 A JP2006504245 A JP 2006504245A JP 2004548398 A JP2004548398 A JP 2004548398A JP 2004548398 A JP2004548398 A JP 2004548398A JP 2006504245 A JP2006504245 A JP 2006504245A
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JP
Japan
Prior art keywords
pulse width
pulse
signal
voltage
output
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
Application number
JP2004548398A
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English (en)
Japanese (ja)
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JP2006504245A5 (enExample
Inventor
フレッドマン，アラン・エス
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.)
Honeywell International Inc
Original Assignee
Honeywell International Inc
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 Honeywell International Inc filed Critical Honeywell International Inc
Publication of JP2006504245A publication Critical patent/JP2006504245A/ja
Publication of JP2006504245A5 publication Critical patent/JP2006504245A5/ja
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K7/00—Modulating pulses with a continuously-variable modulating signal
    • H03K7/08—Duration or width modulation ; Duty cycle modulation
    • 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
    • G09G3/2007—Display of intermediate tones
    • G09G3/2011—Display of intermediate tones by amplitude modulation
    • 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
    • H05B45/12—Controlling the intensity of the light using optical feedback
    • 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
    • H05B45/395—Linear regulators
    • H05B45/397—Current mirror 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
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0606—Manual adjustment
    • 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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
    • G09G2360/145—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from the display screen
    • 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
    • G09G3/2007—Display of intermediate tones
    • G09G3/2014—Display of intermediate tones by modulation of the duration of a single pulse during which the logic level remains constant
    • 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
    • G09G3/2007—Display of intermediate tones
    • G09G3/2077—Display of intermediate tones by a combination of two or more gradation control methods
    • 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
    • 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)
  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
  • Electronic Switches (AREA)
JP2004548398A 2002-10-28 2003-10-17 光放射表示装置の輝度を制御するためのパワー線形技術 Pending JP2006504245A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/282,892 US6724158B1 (en) 2002-10-28 2002-10-28 Power linearization technique for controlling the luminance of light emitting display devices
PCT/US2003/033190 WO2004040759A1 (en) 2002-10-28 2003-10-17 A linear dimmimg device for controlling the luminance of light emitting display devices, and method thereof

Publications (2)

Publication Number Publication Date
JP2006504245A true JP2006504245A (ja) 2006-02-02
JP2006504245A5 JP2006504245A5 (enExample) 2006-12-07

Family

ID=32069411

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004548398A Pending JP2006504245A (ja) 2002-10-28 2003-10-17 光放射表示装置の輝度を制御するためのパワー線形技術

Country Status (5)

Country Link
US (1) US6724158B1 (enExample)
EP (1) EP1563604B1 (enExample)
JP (1) JP2006504245A (enExample)
AU (1) AU2003284289A1 (enExample)
WO (1) WO2004040759A1 (enExample)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101128979B (zh) * 2004-10-12 2011-10-19 皇家飞利浦电子股份有限公司 调制的光源使用的高精度控制设备和方法
DE102004050655A1 (de) * 2004-10-18 2006-06-01 Volkswagen Ag Fahrzeug-Beleuchtungsvorrichtung und Verfahren zum Steuern einer Fahrzeug-Beleuchtungsvorrichtung
WO2006062484A1 (en) * 2004-12-08 2006-06-15 Photronfusion Solutions Pte Ltd Led driver circuit and method of operation
US7342577B2 (en) * 2005-01-25 2008-03-11 Honeywell International, Inc. Light emitting diode driving apparatus with high power and wide dimming range
JP2006208595A (ja) * 2005-01-26 2006-08-10 Brother Ind Ltd 液晶表示装置、及び電子装置
WO2006094590A1 (en) * 2005-03-08 2006-09-14 Sony Ericsson Mobile Communications Ab Electric circuit and method for monitoring a temperature of a light emitting diode
ATE406783T1 (de) * 2005-03-08 2008-09-15 Sony Ericsson Mobile Comm Ab Schaltung und verfahren zum überwachen der temperatur einer leuchtdiode
FR2889643A1 (fr) * 2005-08-08 2007-02-09 Valeo Systemes Thermiques Ajustement de l'intensite lumineuse, notamment d'un tableau de commande pour vehicule automobile
US7492108B2 (en) * 2005-08-11 2009-02-17 Texas Instruments Incorporated System and method for driving light-emitting diodes (LEDs)
DE102006035601A1 (de) * 2006-07-27 2008-01-31 Fachhochschule Jena Bildprojektionseinrichtung
KR101254735B1 (ko) * 2006-09-12 2013-04-16 삼성디스플레이 주식회사 휘도 조정 장치 및 액정표시장치
DE102009030174B4 (de) * 2009-06-24 2013-11-07 Init Innovative Informatikanwendungen In Transport-, Verkehrs- Und Leitsystemen Gmbh Schaltungsanordnung zur Ansteuerung von Licht emittierenden Dioden und Anzeigetafel
KR101341021B1 (ko) * 2009-12-11 2013-12-13 엘지디스플레이 주식회사 광원 구동 장치 및 그 구동 방법
KR101101683B1 (ko) * 2009-12-16 2011-12-30 삼성전기주식회사 Ｐｗｍ를 이용한 발광 소자 구동 장치
WO2011109770A2 (en) * 2010-03-05 2011-09-09 Gtran Inc. Burst mode amplifier
EP2775798B1 (en) 2013-03-07 2015-09-23 Goodrich Lighting Systems GmbH Dimmable LED reading light unit, arrangement of power supply and dimmable LED reading light unit, method of operating a dimmable LED reading light unit in a power supply system, and method of replacing a dimmable light unit by a dimmable LED reading light unit
EP2958401B1 (en) * 2014-06-19 2017-10-18 Helvar Oy Ab LED driver and a method in connection with a LED driver
CN104284490A (zh) * 2014-10-09 2015-01-14 合肥美的电冰箱有限公司 Led驱动电路和电冰箱

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2613572B1 (fr) * 1987-04-03 1993-01-22 Thomson Csf Systeme de visualisation de donnees lumineuses, a lisibilite amelioree
US5691607A (en) * 1996-04-26 1997-11-25 Northrop Grumman Corporation Modular high power modulator
US5923129A (en) * 1997-03-14 1999-07-13 Linfinity Microelectronics Apparatus and method for starting a fluorescent lamp
JP3216572B2 (ja) * 1997-05-27 2001-10-09 日本電気株式会社 圧電トランスの駆動回路
US6095661A (en) * 1998-03-19 2000-08-01 Ppt Vision, Inc. Method and apparatus for an L.E.D. flashlight
US6144194A (en) * 1998-07-13 2000-11-07 Linear Technology Corp. Polyphase synchronous switching voltage regulators
WO2000054246A1 (en) * 1999-03-05 2000-09-14 Canon Kabushiki Kaisha Image forming device
US6396217B1 (en) * 2000-12-22 2002-05-28 Visteon Global Technologies, Inc. Brightness offset error reduction system and method for a display device
US6501234B2 (en) * 2001-01-09 2002-12-31 02 Micro International Limited Sequential burst mode activation circuit

Also Published As

Publication number Publication date
AU2003284289A1 (en) 2004-05-25
EP1563604A1 (en) 2005-08-17
EP1563604B1 (en) 2015-02-25
WO2004040759A1 (en) 2004-05-13
US6724158B1 (en) 2004-04-20

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