CN100378540C - 灯驱动器件以及含有其的背光组件和液晶显示装置 - Google Patents
灯驱动器件以及含有其的背光组件和液晶显示装置 Download PDFInfo
- Publication number
- CN100378540C CN100378540C CNB2003101248701A CN200310124870A CN100378540C CN 100378540 C CN100378540 C CN 100378540C CN B2003101248701 A CNB2003101248701 A CN B2003101248701A CN 200310124870 A CN200310124870 A CN 200310124870A CN 100378540 C CN100378540 C CN 100378540C
- Authority
- CN
- China
- Prior art keywords
- lamp
- node
- signal
- electrically connected
- detection part
- 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.)
- Expired - Fee Related
Links
Images
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
- 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
-
- 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
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133604—Direct backlight with lamps
-
- 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
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133608—Direct backlight including particular frames or supporting means
-
- 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
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
- Liquid Crystal (AREA)
Abstract
Description
Claims (23)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020020072490A KR100897508B1 (ko) | 2002-11-20 | 2002-11-20 | 램프 구동 장치와, 이를 갖는 백라이트 어셈블리 및 액정표시 장치 |
KR72490/02 | 2002-11-20 | ||
KR72490/2002 | 2002-11-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1515940A CN1515940A (zh) | 2004-07-28 |
CN100378540C true CN100378540C (zh) | 2008-04-02 |
Family
ID=32322268
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2003101248701A Expired - Fee Related CN100378540C (zh) | 2002-11-20 | 2003-11-20 | 灯驱动器件以及含有其的背光组件和液晶显示装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7456819B2 (zh) |
JP (1) | JP2004311396A (zh) |
KR (1) | KR100897508B1 (zh) |
CN (1) | CN100378540C (zh) |
TW (1) | TW200500701A (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009129650A1 (zh) * | 2008-04-22 | 2009-10-29 | 光远科技股份有限公司 | 液晶显示器led背光装置的衰减补偿方法和液晶显示器 |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101012800B1 (ko) * | 2004-05-13 | 2011-02-08 | 삼성전자주식회사 | 표시 장치용 광원의 구동 장치 |
KR101128241B1 (ko) * | 2004-05-31 | 2012-03-26 | 엘지디스플레이 주식회사 | 액정표시장치의 램프구동장치 |
KR101119782B1 (ko) | 2004-12-31 | 2012-03-23 | 엘지디스플레이 주식회사 | 휘도의 균일도가 향상된 백라이트 |
KR101170949B1 (ko) * | 2005-06-03 | 2012-08-03 | 엘지디스플레이 주식회사 | 액정표시장치용 외부전극형광램프 |
TWI330346B (en) * | 2005-06-15 | 2010-09-11 | Chi Mei Optoelectronics Corp | Liquid crystal display, backlight module and lamp driving apparatus thereof |
CN100443994C (zh) * | 2005-06-17 | 2008-12-17 | 群康科技(深圳)有限公司 | 背光开路保护电路 |
KR101137868B1 (ko) * | 2005-06-30 | 2012-04-23 | 엘지디스플레이 주식회사 | 백라이트 유닛 및 그의 구동방법 |
CN1953632B (zh) * | 2005-10-20 | 2010-12-08 | 鸿富锦精密工业(深圳)有限公司 | 开路保护电路 |
CN101009084B (zh) * | 2006-01-27 | 2011-09-14 | 奇美电子股份有限公司 | 液晶显示器、背光模组及其灯管驱动装置 |
WO2007125704A1 (ja) * | 2006-04-26 | 2007-11-08 | Panasonic Corporation | 誘電体バリア放電ランプ点灯装置および誘電体バリア放電ランプの点灯本数検知方法 |
KR20070109223A (ko) | 2006-05-10 | 2007-11-15 | 엘지이노텍 주식회사 | 액정표시장치의 램프 구동장치 |
KR101232156B1 (ko) * | 2006-06-05 | 2013-02-12 | 엘지디스플레이 주식회사 | 액정표시장치 |
KR101257926B1 (ko) * | 2006-06-07 | 2013-04-24 | 엘지디스플레이 주식회사 | 액정 표시 장치의 백라이트 유닛 및 이의 구동 방법 |
JP5283872B2 (ja) * | 2006-09-27 | 2013-09-04 | シスメックス株式会社 | 腫瘍細胞に対する阻害剤の増殖抑制効果を評価する方法、及び腫瘍細胞の増殖を阻害する化合物をスクリーニングする方法 |
JP2008083584A (ja) * | 2006-09-28 | 2008-04-10 | Nec Lcd Technologies Ltd | 液晶パネルモジュール及び液晶表示装置 |
TWI377534B (en) * | 2007-07-06 | 2012-11-21 | Chimei Innolux Corp | Light sources control circuit |
KR101384059B1 (ko) * | 2007-07-13 | 2014-04-10 | 엘지디스플레이 주식회사 | 백라이트 유닛 구동장치 |
CN101351072B (zh) * | 2007-07-20 | 2012-03-14 | 群康科技(深圳)有限公司 | 光源控制电路 |
JP2009251157A (ja) * | 2008-04-03 | 2009-10-29 | Hitachi Displays Ltd | 液晶表示装置 |
KR101269331B1 (ko) | 2008-10-28 | 2013-05-29 | 포항공과대학교 산학협력단 | 백라이트 유닛 구동장치 |
WO2010093449A2 (en) * | 2009-02-11 | 2010-08-19 | Anthony Mo | Thermoelectric feedback circuit |
US10514491B2 (en) * | 2016-11-01 | 2019-12-24 | Sharp Kabushiki Kaisha | Backlight device, and display device provided with same |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1144341A (zh) * | 1994-10-28 | 1997-03-05 | 三星电子株式会社 | Lcd的背景照明电路 |
US5615093A (en) * | 1994-08-05 | 1997-03-25 | Linfinity Microelectronics | Current synchronous zero voltage switching resonant topology |
US5930126A (en) * | 1996-03-26 | 1999-07-27 | 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 |
US20020003525A1 (en) * | 2000-07-06 | 2002-01-10 | Hwang Beom Young | Driving circuit for LCD backlight |
US20020075223A1 (en) * | 2000-12-18 | 2002-06-20 | Jason Chen | Back lighting source module for liquid crystal display |
CN1368789A (zh) * | 1999-11-09 | 2002-09-11 | 凹凸科技国际股份有限公司 | 高效率可适型直流/交流转换器 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6127785A (en) * | 1992-03-26 | 2000-10-03 | Linear Technology Corporation | Fluorescent lamp power supply and control circuit for wide range operation |
JPH06267674A (ja) * | 1993-03-16 | 1994-09-22 | Taiyo Yuden Co Ltd | 冷陰極管点灯装置 |
US5777439A (en) * | 1996-03-07 | 1998-07-07 | Osram Sylvania Inc. | Detection and protection circuit for fluorescent lamps operating at failure mode |
US6259615B1 (en) * | 1999-07-22 | 2001-07-10 | O2 Micro International Limited | High-efficiency adaptive DC/AC converter |
KR20010108645A (ko) * | 2000-05-30 | 2001-12-08 | 송재인 | 엘씨디 백라이트용 인버터의 보호회로 |
JP2002110388A (ja) * | 2000-09-29 | 2002-04-12 | Nec Mitsubishi Denki Visual Systems Kk | 放電管点灯装置 |
GB0026111D0 (en) * | 2000-10-25 | 2000-12-13 | Raytheon Marine Ltd | Fluorescent lamp driver circuit |
KR100401100B1 (ko) * | 2000-11-22 | 2003-10-10 | 삼성전기주식회사 | 엘시디 백라이트 인버터 |
TWI256860B (en) * | 2001-06-29 | 2006-06-11 | Hon Hai Prec Ind Co Ltd | Multi-tube driving system |
KR100840933B1 (ko) * | 2002-01-31 | 2008-06-24 | 삼성전자주식회사 | 램프 구동 장치 및 이를 갖는 액정 표시 장치 |
-
2002
- 2002-11-20 KR KR1020020072490A patent/KR100897508B1/ko not_active IP Right Cessation
-
2003
- 2003-11-17 US US10/715,169 patent/US7456819B2/en not_active Expired - Fee Related
- 2003-11-18 TW TW092132278A patent/TW200500701A/zh unknown
- 2003-11-20 JP JP2003390170A patent/JP2004311396A/ja active Pending
- 2003-11-20 CN CNB2003101248701A patent/CN100378540C/zh not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5615093A (en) * | 1994-08-05 | 1997-03-25 | Linfinity Microelectronics | Current synchronous zero voltage switching resonant topology |
CN1144341A (zh) * | 1994-10-28 | 1997-03-05 | 三星电子株式会社 | Lcd的背景照明电路 |
US5930126A (en) * | 1996-03-26 | 1999-07-27 | 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 |
CN1368789A (zh) * | 1999-11-09 | 2002-09-11 | 凹凸科技国际股份有限公司 | 高效率可适型直流/交流转换器 |
US20020003525A1 (en) * | 2000-07-06 | 2002-01-10 | Hwang Beom Young | Driving circuit for LCD backlight |
US20020075223A1 (en) * | 2000-12-18 | 2002-06-20 | Jason Chen | Back lighting source module for liquid crystal display |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009129650A1 (zh) * | 2008-04-22 | 2009-10-29 | 光远科技股份有限公司 | 液晶显示器led背光装置的衰减补偿方法和液晶显示器 |
Also Published As
Publication number | Publication date |
---|---|
TW200500701A (en) | 2005-01-01 |
KR100897508B1 (ko) | 2009-05-15 |
US20040100438A1 (en) | 2004-05-27 |
KR20040044000A (ko) | 2004-05-27 |
US7456819B2 (en) | 2008-11-25 |
JP2004311396A (ja) | 2004-11-04 |
CN1515940A (zh) | 2004-07-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN100378540C (zh) | 灯驱动器件以及含有其的背光组件和液晶显示装置 | |
US6947024B2 (en) | Apparatus and driving lamp and liquid crystal display device having the same | |
US8434882B2 (en) | LED lamp | |
US7291987B2 (en) | Power supply system for flat panel display devices | |
CN100476544C (zh) | 灯单元的驱动装置和驱动方法及使用其的液晶显示装置 | |
CN1520529A (zh) | 外电极荧光灯,使用该外电极荧光灯的背光单元,使用该背光单元的lcd背光装置和其驱动装置 | |
CN1492270A (zh) | 灯组件和具有这种灯组件的液晶显示装置 | |
US6577066B1 (en) | Compact self-ballasted fluorescent lamp | |
CN1953630A (zh) | 用于驱动放电灯的装置和方法 | |
US7564191B2 (en) | Inverter having single switching device | |
US7365502B2 (en) | Device for driving light sources | |
JP2004191975A (ja) | 液晶表示装置用バックライト装置 | |
US7586269B2 (en) | Device for driving light source module | |
KR101592381B1 (ko) | 광원 구동 방법 및 이를 수행하기 위한 광원 장치 | |
US20070001618A1 (en) | Driving apparatus for lamp of liquid crystal display device | |
CN201539792U (zh) | 背光模块以及液晶显示装置 | |
KR100782652B1 (ko) | 보호 장치 및 그에 이용되는 ccfl 구동 시스템 | |
US20070145910A1 (en) | Backlight module and driving circuit module thereof | |
KR101137883B1 (ko) | 백라이트 유닛 | |
US7479745B2 (en) | LCD back light panel lamp connecting structure | |
KR101331808B1 (ko) | 액정표시장치 및 백라이트 유닛 | |
CN1835651A (zh) | 液晶显示器背光模块的驱动方法及其电路 | |
CN210491271U (zh) | 一种船舶用直流宽电压照明装置 | |
KR100971947B1 (ko) | 백라이트 유닛을 포함하는 액정표시장치모듈 | |
KR20040019566A (ko) | 평면 디스플레이 패널용 광원장치 |
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: 20080402 Termination date: 20151120 |
|
CF01 | Termination of patent right due to non-payment of annual fee |