IL136975A0 - Method and apparatus for dimming a lamp in a backlight of a liquid crystal display - Google Patents

Method and apparatus for dimming a lamp in a backlight of a liquid crystal display

Info

Publication number
IL136975A0
IL136975A0 IL13697598A IL13697598A IL136975A0 IL 136975 A0 IL136975 A0 IL 136975A0 IL 13697598 A IL13697598 A IL 13697598A IL 13697598 A IL13697598 A IL 13697598A IL 136975 A0 IL136975 A0 IL 136975A0
Authority
IL
Israel
Prior art keywords
dimming
backlight
lamp
liquid crystal
crystal display
Prior art date
Application number
IL13697598A
Other languages
English (en)
Original Assignee
Honeywell 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 Inc filed Critical Honeywell Inc
Publication of IL136975A0 publication Critical patent/IL136975A0/xx

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
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light
    • H05B41/39—Controlling the intensity of light continuously
    • H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
    • H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations
    • H05B41/3927—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations by pulse width 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
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light
    • H05B41/39—Controlling the intensity of light continuously
    • H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
IL13697598A 1997-12-24 1998-11-20 Method and apparatus for dimming a lamp in a backlight of a liquid crystal display IL136975A0 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/998,110 US5939830A (en) 1997-12-24 1997-12-24 Method and apparatus for dimming a lamp in a backlight of a liquid crystal display
PCT/US1998/024701 WO1999034651A1 (en) 1997-12-24 1998-11-20 Method and apparatus for dimming a lamp in a backlight of a liquid crystal display

Publications (1)

Publication Number Publication Date
IL136975A0 true IL136975A0 (en) 2001-06-14

Family

ID=25544774

Family Applications (2)

Application Number Title Priority Date Filing Date
IL13697598A IL136975A0 (en) 1997-12-24 1998-11-20 Method and apparatus for dimming a lamp in a backlight of a liquid crystal display
IL136975A IL136975A (en) 1997-12-24 2000-06-25 Method and device for dimming a backlight lamp in a liquid crystal display

Family Applications After (1)

Application Number Title Priority Date Filing Date
IL136975A IL136975A (en) 1997-12-24 2000-06-25 Method and device for dimming a backlight lamp in a liquid crystal display

Country Status (9)

Country Link
US (1) US5939830A (ru)
EP (1) EP1044588B1 (ru)
JP (1) JP4249900B2 (ru)
KR (1) KR100580850B1 (ru)
DE (1) DE69807751T2 (ru)
DK (1) DK1044588T3 (ru)
IL (2) IL136975A0 (ru)
TW (1) TW431122B (ru)
WO (1) WO1999034651A1 (ru)

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US6949912B2 (en) 2002-06-20 2005-09-27 02Micro International Limited Enabling circuit for avoiding negative voltage transients
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US7057611B2 (en) * 2003-03-25 2006-06-06 02Micro International Limited Integrated power supply for an LCD panel
US6936975B2 (en) 2003-04-15 2005-08-30 02Micro International Limited Power supply for an LCD panel
US8144106B2 (en) 2003-04-24 2012-03-27 Samsung Electronics Co., Ltd. Liquid crystal display and driving method thereof
KR100866791B1 (ko) * 2003-04-25 2008-11-04 삼성전자주식회사 액정 판넬 디스플레이 장치 및 그 구동 방법
JP3696604B2 (ja) 2003-05-23 2005-09-21 ローム株式会社 直流−交流変換装置、及び交流電力供給方法
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US7187139B2 (en) 2003-09-09 2007-03-06 Microsemi Corporation Split phase inverters for CCFL backlight system
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US7468722B2 (en) 2004-02-09 2008-12-23 Microsemi Corporation Method and apparatus to control display brightness with ambient light correction
US7112929B2 (en) 2004-04-01 2006-09-26 Microsemi Corporation Full-bridge and half-bridge compatible driver timing schedule for direct drive backlight system
US7872631B2 (en) 2004-05-04 2011-01-18 Sharp Laboratories Of America, Inc. Liquid crystal display with temporal black point
US7602369B2 (en) 2004-05-04 2009-10-13 Sharp Laboratories Of America, Inc. Liquid crystal display with colored backlight
US7777714B2 (en) 2004-05-04 2010-08-17 Sharp Laboratories Of America, Inc. Liquid crystal display with adaptive width
US8395577B2 (en) 2004-05-04 2013-03-12 Sharp Laboratories Of America, Inc. Liquid crystal display with illumination control
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US7262561B2 (en) * 2004-12-13 2007-08-28 Zippy Technology Corp. Method for controlling power supply through multiple modulation modes
TW200630668A (en) * 2005-02-16 2006-09-01 Delta Optoelectronics Inc Cold cathode flat fluorescent light (CCFFL) and the driving method
FR2882870B1 (fr) * 2005-03-01 2007-08-10 Thales Sa Oscillateur de royer a electronique de decharge
KR100675224B1 (ko) * 2005-05-09 2007-01-26 삼성전기주식회사 백라이트용 외부전극 형광램프 인버터의 구동방법
US8121401B2 (en) 2006-01-24 2012-02-21 Sharp Labortories of America, Inc. Method for reducing enhancement of artifacts and noise in image color enhancement
US9143657B2 (en) 2006-01-24 2015-09-22 Sharp Laboratories Of America, Inc. Color enhancement technique using skin color detection
KR100791841B1 (ko) * 2006-03-10 2008-01-07 삼성전자주식회사 프레임 신호에 동기된 백라이트 신호를 발생하기 위한장치와 방법
JP2009532841A (ja) * 2006-04-06 2009-09-10 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ ランプ駆動装置及び方法
US7569998B2 (en) 2006-07-06 2009-08-04 Microsemi Corporation Striking and open lamp regulation for CCFL controller
US8941580B2 (en) 2006-11-30 2015-01-27 Sharp Laboratories Of America, Inc. Liquid crystal display with area adaptive backlight
US8044558B2 (en) * 2006-12-13 2011-10-25 Honeywell International Inc. Dimmable high pressure arc lamp apparatus and methods
JP2009252410A (ja) * 2008-04-02 2009-10-29 Ushio Inc 放電ランプ装置
KR100950682B1 (ko) * 2008-07-24 2010-03-31 전자부품연구원 표시 장치 및 방법
TWI403216B (zh) * 2008-10-14 2013-07-21 Chunghwa Picture Tubes Ltd 光源亮度控制電路及亮度控制方法
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US8093839B2 (en) 2008-11-20 2012-01-10 Microsemi Corporation Method and apparatus for driving CCFL at low burst duty cycle rates
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Also Published As

Publication number Publication date
KR20010033591A (ko) 2001-04-25
TW431122B (en) 2001-04-21
WO1999034651A1 (en) 1999-07-08
IL136975A (en) 2006-07-05
DE69807751T2 (de) 2003-06-05
DK1044588T3 (da) 2002-12-02
EP1044588A1 (en) 2000-10-18
DE69807751D1 (de) 2002-10-10
JP4249900B2 (ja) 2009-04-08
US5939830A (en) 1999-08-17
EP1044588B1 (en) 2002-09-04
KR100580850B1 (ko) 2006-05-16
JP2002500427A (ja) 2002-01-08

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