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TWI366031B - Liquid crystal display and apparatus of driving light source therefor - Google Patents

Liquid crystal display and apparatus of driving light source therefor

Info

Publication number
TWI366031B
TWI366031B TW092119972A TW92119972A TWI366031B TW I366031 B TWI366031 B TW I366031B TW 092119972 A TW092119972 A TW 092119972A TW 92119972 A TW92119972 A TW 92119972A TW I366031 B TWI366031 B TW I366031B
Authority
TW
Taiwan
Prior art keywords
liquid crystal
light source
crystal display
driving light
source therefor
Prior art date
Application number
TW092119972A
Other languages
English (en)
Other versions
TW200410012A (en
Inventor
Lee Inn-Sung
Kang Moon-Shik
Han Song-Yi
Original Assignee
Samsung Electronics 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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of TW200410012A publication Critical patent/TW200410012A/zh
Application granted granted Critical
Publication of TWI366031B publication Critical patent/TWI366031B/zh

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • 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
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC using static converters
    • H05B41/282—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC using static converters with semiconductor devices
    • H05B41/285—Arrangements for protecting lamps or circuits against abnormal operating conditions
    • H05B41/2851—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions
    • 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
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC using static converters
    • H05B41/282—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC using static converters with semiconductor devices
    • H05B41/285—Arrangements for protecting lamps or circuits against abnormal operating conditions
    • H05B41/2851—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions
    • H05B41/2855—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions against abnormal lamp operating conditions

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Optics & Photonics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Liquid Crystal (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Inverter Devices (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Planar Illumination Modules (AREA)
TW092119972A 2002-07-22 2003-07-22 Liquid crystal display and apparatus of driving light source therefor TWI366031B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020020042935A KR100864499B1 (ko) 2002-07-22 2002-07-22 액정 표시 장치 및 그 백라이트 구동 장치

Publications (2)

Publication Number Publication Date
TW200410012A TW200410012A (en) 2004-06-16
TWI366031B true TWI366031B (en) 2012-06-11

Family

ID=31944834

Family Applications (1)

Application Number Title Priority Date Filing Date
TW092119972A TWI366031B (en) 2002-07-22 2003-07-22 Liquid crystal display and apparatus of driving light source therefor

Country Status (5)

Country Link
US (1) US7221345B2 (zh)
JP (1) JP4585747B2 (zh)
KR (1) KR100864499B1 (zh)
CN (1) CN100422821C (zh)
TW (1) TWI366031B (zh)

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* Cited by examiner, † Cited by third party
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JP2004317610A (ja) * 2003-04-14 2004-11-11 Pioneer Electronic Corp 表示パネル駆動装置
KR100953429B1 (ko) * 2003-08-11 2010-04-20 삼성전자주식회사 램프 구동 방법 및 그 장치와, 이를 갖는 백라이트어셈블리 및 액정 표시 장치
KR100577998B1 (ko) * 2003-11-12 2006-05-11 엘지.필립스 엘시디 주식회사 램프의 구동장치와 이를 가지는 액정표시장치
KR100595313B1 (ko) * 2004-03-15 2006-07-03 엘지.필립스 엘시디 주식회사 백라이트 유닛의 램프 점등장치
KR101133752B1 (ko) 2004-06-04 2012-04-09 삼성전자주식회사 표시 장치용 광원의 구동 장치 및 표시 장치
CN1735312A (zh) * 2004-08-11 2006-02-15 皇家飞利浦电子股份有限公司 用于消除电弧的装置及方法
US7554273B2 (en) * 2006-09-05 2009-06-30 O2Micro International Limited Protection for external electrode fluorescent lamp system
US7126289B2 (en) * 2004-08-20 2006-10-24 O2 Micro Inc Protection for external electrode fluorescent lamp system
KR100668083B1 (ko) 2004-11-05 2007-01-11 삼성전자주식회사 백라이트 구동장치
KR101152503B1 (ko) * 2005-06-24 2012-06-01 엘지디스플레이 주식회사 저전압 구동 백라이트용 램프
WO2007018071A1 (ja) * 2005-08-05 2007-02-15 Sharp Kabushiki Kaisha 表示装置用照明装置及び表示装置
KR100854840B1 (ko) * 2005-08-31 2008-08-27 엘지전자 주식회사 액정표시기의 인버터 전류 제어 장치
US7746330B2 (en) * 2005-12-22 2010-06-29 Au Optronics Corporation Circuit and method for improving image quality of a liquid crystal display
KR100645082B1 (ko) * 2006-03-08 2006-11-13 최일완 산업폐기물 재활용방법 및 이에 사용되는 성형물 성형장치
CN101174383B (zh) * 2006-11-02 2011-06-08 惠浦电子(深圳)有限公司 一种显示装置控制电路
TW200839692A (en) * 2007-03-21 2008-10-01 Delta Electronics Inc Liquid crystal display apparatus, backlight module and light source driving device thereof
KR101308979B1 (ko) 2007-03-29 2013-09-17 삼성디스플레이 주식회사 백라이트 인버터 및 그것을 사용하는 액정 표시 장치
CN101663921B (zh) * 2007-04-19 2013-07-10 胜美达集团株式会社 放电管驱动装置
US8058809B2 (en) * 2007-07-02 2011-11-15 O2Micro, Inc. Circuits and methods for balancing current among multiple loads
JP2009104960A (ja) * 2007-10-24 2009-05-14 Sumida Corporation 異常検出回路
CN101465102B (zh) * 2007-12-18 2012-10-10 瑞鼎科技股份有限公司 用于驱动液晶显示器的驱动装置及方法
KR101539581B1 (ko) * 2009-01-15 2015-07-27 삼성디스플레이 주식회사 광원 구동 방법, 이를 수행하기 위한 광원 어셈블리 및 이를 갖는 액정 표시 장치

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JPH07281149A (ja) * 1994-04-11 1995-10-27 Citizen Watch Co Ltd 照明装置
JP3067994B2 (ja) * 1995-12-14 2000-07-24 株式会社ラックランド 高周波インバータ応用の蛍光灯の点灯装置
US5636111A (en) * 1996-03-26 1997-06-03 The Genlyte Group Incorporated Ballast shut-down circuit responsive to an unbalanced load condition in a single lamp ballast or in either lamp of a two-lamp ballast
KR100455651B1 (ko) * 1997-08-08 2005-01-17 삼성전자주식회사 다중출력 직류/직류 전압 변환장치 및 이를 이용한 액정 표시 장치
US5949633A (en) * 1997-10-31 1999-09-07 Rockwell International Corporation Fluorescent lamp drive system with transformer over-voltage protection circuit
US5892336A (en) * 1998-05-26 1999-04-06 O2Micro Int Ltd Circuit for energizing cold-cathode fluorescent lamps
KR100536833B1 (ko) * 1999-07-05 2005-12-14 엘지.필립스 엘시디 주식회사 액정표시소자의 화이트스크린 에러 방지방법 및 그에 따른 장치
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CN2453468Y (zh) 2000-12-06 2001-10-10 国碁电子股份有限公司 液晶显示器背光源模组
KR100759362B1 (ko) * 2001-01-18 2007-09-19 삼성전자주식회사 백라이트 어셈블리 및 이를 갖는 액정 표시 장치
JP2002268610A (ja) * 2001-03-09 2002-09-20 Nec Corp 液晶駆動用電源回路
KR100870007B1 (ko) * 2002-06-25 2008-11-21 삼성전자주식회사 백라이트 구동 장치

Also Published As

Publication number Publication date
TW200410012A (en) 2004-06-16
US7221345B2 (en) 2007-05-22
JP2004054294A (ja) 2004-02-19
CN100422821C (zh) 2008-10-01
US20040056830A1 (en) 2004-03-25
KR100864499B1 (ko) 2008-10-20
KR20040009103A (ko) 2004-01-31
JP4585747B2 (ja) 2010-11-24
CN1495488A (zh) 2004-05-12

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Legal Events

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