CN1495488A - 液晶显示器及为其驱动光源的装置 - Google Patents
液晶显示器及为其驱动光源的装置 Download PDFInfo
- Publication number
- CN1495488A CN1495488A CNA031649386A CN03164938A CN1495488A CN 1495488 A CN1495488 A CN 1495488A CN A031649386 A CNA031649386 A CN A031649386A CN 03164938 A CN03164938 A CN 03164938A CN 1495488 A CN1495488 A CN 1495488A
- Authority
- CN
- China
- Prior art keywords
- voltage
- signal
- transformers
- driver
- out secondary
- 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.)
- Granted
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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
Abstract
Description
Claims (12)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR0042935/02 | 2002-07-22 | ||
KR1020020042935A KR100864499B1 (ko) | 2002-07-22 | 2002-07-22 | 액정 표시 장치 및 그 백라이트 구동 장치 |
KR0042935/2002 | 2002-07-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1495488A true CN1495488A (zh) | 2004-05-12 |
CN100422821C CN100422821C (zh) | 2008-10-01 |
Family
ID=31944834
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB031649386A Expired - Fee Related CN100422821C (zh) | 2002-07-22 | 2003-07-22 | 液晶显示器及为其驱动光源的装置 |
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) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100434981C (zh) * | 2005-08-31 | 2008-11-19 | 南京Lg同创彩色显示系统有限责任公司 | 液晶显示器的环流器电流控制装置 |
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 |
CN101409970B (zh) * | 2007-07-02 | 2012-02-29 | 凹凸电子(武汉)有限公司 | 多个负载的驱动电路、方法及背光系统 |
CN101420809B (zh) * | 2007-10-24 | 2012-05-09 | 胜美达集团株式会社 | 故障检测电路 |
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 |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
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 |
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 |
WO2008133024A1 (ja) | 2007-04-19 | 2008-11-06 | Sumida Corporation | 放電管駆動装置 |
KR101539581B1 (ko) * | 2009-01-15 | 2015-07-27 | 삼성디스플레이 주식회사 | 광원 구동 방법, 이를 수행하기 위한 광원 어셈블리 및 이를 갖는 액정 표시 장치 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4010399A (en) * | 1975-12-22 | 1977-03-01 | Gte Sylvania Incorporated | Switching circuit for a fluorescent lamp with heated filaments |
US4164016A (en) * | 1978-11-13 | 1979-08-07 | Esb Incorporated | Current sensing system |
US4317165A (en) * | 1980-06-17 | 1982-02-23 | Vanner, Inc. | Inverter having improved efficiency and regulation |
JPH05135893A (ja) * | 1991-11-11 | 1993-06-01 | Matsushita Electric Ind Co Ltd | 蛍光灯電源回路 |
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 |
TW472186B (en) * | 2000-02-11 | 2002-01-11 | Mitac Int Corp | Power saving circuit and method of display light source |
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 |
-
2002
- 2002-07-22 KR KR1020020042935A patent/KR100864499B1/ko not_active IP Right Cessation
-
2003
- 2003-07-18 JP JP2003276979A patent/JP4585747B2/ja not_active Expired - Fee Related
- 2003-07-21 US US10/626,758 patent/US7221345B2/en not_active Expired - Fee Related
- 2003-07-22 CN CNB031649386A patent/CN100422821C/zh not_active Expired - Fee Related
- 2003-07-22 TW TW092119972A patent/TWI366031B/zh not_active IP Right Cessation
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100434981C (zh) * | 2005-08-31 | 2008-11-19 | 南京Lg同创彩色显示系统有限责任公司 | 液晶显示器的环流器电流控制装置 |
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 |
CN101409970B (zh) * | 2007-07-02 | 2012-02-29 | 凹凸电子(武汉)有限公司 | 多个负载的驱动电路、方法及背光系统 |
CN101420809B (zh) * | 2007-10-24 | 2012-05-09 | 胜美达集团株式会社 | 故障检测电路 |
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 |
Also Published As
Publication number | Publication date |
---|---|
CN100422821C (zh) | 2008-10-01 |
KR100864499B1 (ko) | 2008-10-20 |
KR20040009103A (ko) | 2004-01-31 |
US20040056830A1 (en) | 2004-03-25 |
JP2004054294A (ja) | 2004-02-19 |
JP4585747B2 (ja) | 2010-11-24 |
TWI366031B (en) | 2012-06-11 |
TW200410012A (en) | 2004-06-16 |
US7221345B2 (en) | 2007-05-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: SAMSUNG MONITOR CO., LTD. Free format text: FORMER OWNER: SAMSUNG ELECTRONICS CO., LTD. Effective date: 20121026 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20121026 Address after: Gyeonggi Do, South Korea Patentee after: Samsung Display Co., Ltd. Address before: Gyeonggi Do, South Korea Patentee before: Samsung Electronics Co., Ltd. |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081001 Termination date: 20170722 |
|
CF01 | Termination of patent right due to non-payment of annual fee |