AU2003284289A1 - A linear dimmimg device for controlling the luminance of light emitting display devices, and method thereof - Google Patents

A linear dimmimg device for controlling the luminance of light emitting display devices, and method thereof

Info

Publication number
AU2003284289A1
AU2003284289A1 AU2003284289A AU2003284289A AU2003284289A1 AU 2003284289 A1 AU2003284289 A1 AU 2003284289A1 AU 2003284289 A AU2003284289 A AU 2003284289A AU 2003284289 A AU2003284289 A AU 2003284289A AU 2003284289 A1 AU2003284289 A1 AU 2003284289A1
Authority
AU
Australia
Prior art keywords
dimmimg
luminance
linear
controlling
light emitting
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.)
Abandoned
Application number
AU2003284289A
Other languages
English (en)
Inventor
Alan S. Fledman
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 AU2003284289A1 publication Critical patent/AU2003284289A1/en
Abandoned legal-status Critical Current

Links

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)
AU2003284289A 2002-10-28 2003-10-17 A linear dimmimg device for controlling the luminance of light emitting display devices, and method thereof Abandoned AU2003284289A1 (en)

Applications Claiming Priority (3)

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
US10/282,892 2002-10-28
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 (1)

Publication Number Publication Date
AU2003284289A1 true AU2003284289A1 (en) 2004-05-25

Family

ID=32069411

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2003284289A Abandoned AU2003284289A1 (en) 2002-10-28 2003-10-17 A linear dimmimg device for controlling the luminance of light emitting display devices, and method thereof

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
JP2006504245A (ja) 2006-02-02
EP1563604A1 (en) 2005-08-17
EP1563604B1 (en) 2015-02-25
WO2004040759A1 (en) 2004-05-13
US6724158B1 (en) 2004-04-20

Similar Documents

Publication Publication Date Title
AU2003289347A1 (en) Light emitting device
AU2002951465A0 (en) Light emitting device
AU2003263434A1 (en) Electroluminescent display devices
AU2003260898A1 (en) Electroluminescent display devices
AU2003231579A1 (en) Light emitting device and display apparatus using same
AU2003255995A1 (en) Electroluminescent display devices
AU2003284289A1 (en) A linear dimmimg device for controlling the luminance of light emitting display devices, and method thereof
AU2003273161A1 (en) Display devices using feedback enhanced light emitting diode
EP1641052B8 (en) Emission device, surface light source device, display and light flux control member
AU2003255996A1 (en) Electroluminescent display devices
EP1339109B8 (en) Red-deficiency compensating phosphor light emitting device
AU2003284070A1 (en) Controller for a light display
AU2002348847A1 (en) Electroluminescent display device
AU2003301712A1 (en) Display device and controlling method thereof
AU2003280878A1 (en) Light emitting device and fabrication method thereof
AU2003234815A1 (en) Light emitting diode and method for fabricating the same
AU2003263929A1 (en) Organic light emitting materials and devices
AU2003205984A1 (en) Electroluminescent display device
AUPS327002A0 (en) An electroluminescent light emitting device
AU2003260952A1 (en) Light emitting device and driving method thereof
AU2003268640A1 (en) Production method for light emitting device
AU2003289346A1 (en) Light emitting device and electronic device
AU2003259427A1 (en) Electroluminescent display devices
AU2003289213A1 (en) Driving method for light emitting device, and electronic equipment
AU2003280746A1 (en) Electroluminescent device and light-emitting device

Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase