CN100448333C - 灯驱动装置和具有灯驱动装置的液晶显示器 - Google Patents
灯驱动装置和具有灯驱动装置的液晶显示器 Download PDFInfo
- Publication number
- CN100448333C CN100448333C CNB021529833A CN02152983A CN100448333C CN 100448333 C CN100448333 C CN 100448333C CN B021529833 A CNB021529833 A CN B021529833A CN 02152983 A CN02152983 A CN 02152983A CN 100448333 C CN100448333 C CN 100448333C
- Authority
- CN
- China
- Prior art keywords
- lamp
- signal
- lcd
- input
- ground
- 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
- H05B41/2858—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the lamp against abnormal 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
- G02F1/133612—Electrical details
-
- 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
Abstract
Description
Claims (19)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020020005731A KR100840933B1 (ko) | 2002-01-31 | 2002-01-31 | 램프 구동 장치 및 이를 갖는 액정 표시 장치 |
KR5731/02 | 2002-01-31 | ||
KR5731/2002 | 2002-01-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1436030A CN1436030A (zh) | 2003-08-13 |
CN100448333C true CN100448333C (zh) | 2008-12-31 |
Family
ID=27607063
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB021529833A Expired - Fee Related CN100448333C (zh) | 2002-01-31 | 2002-11-29 | 灯驱动装置和具有灯驱动装置的液晶显示器 |
Country Status (5)
Country | Link |
---|---|
US (2) | US6947024B2 (zh) |
JP (1) | JP4130767B2 (zh) |
KR (1) | KR100840933B1 (zh) |
CN (1) | CN100448333C (zh) |
TW (1) | TW558711B (zh) |
Families Citing this family (65)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1364232A4 (en) * | 2000-11-17 | 2006-04-26 | Pure Depth Ltd | CHANGING THE SURFACE OF A DISPLAY SCREEN OF MATT IN OPTICAL SMOOTH |
NZ511255A (en) * | 2001-04-20 | 2003-12-19 | Deep Video Imaging Ltd | Multi-focal plane display having an optical retarder and a diffuser interposed between its screens |
KR100878217B1 (ko) * | 2001-08-28 | 2009-01-14 | 삼성전자주식회사 | 액정표시장치 및 이의 구동 방법 |
NZ514500A (en) | 2001-10-11 | 2004-06-25 | Deep Video Imaging Ltd | A multiplane visual display unit with a transparent emissive layer disposed between two display planes |
US7742239B2 (en) * | 2002-03-17 | 2010-06-22 | Puredepth Limited | Method to control point spread function of an image |
CA2492800C (en) * | 2002-07-15 | 2011-04-26 | Gareth Paul Bell | Improved multilayer video screen |
NZ521505A (en) | 2002-09-20 | 2005-05-27 | Deep Video Imaging Ltd | Multi-view display |
KR100897508B1 (ko) * | 2002-11-20 | 2009-05-15 | 삼성전자주식회사 | 램프 구동 장치와, 이를 갖는 백라이트 어셈블리 및 액정표시 장치 |
TW560664U (en) * | 2002-11-20 | 2003-11-01 | Gigno Technology Co Ltd | Digital controlled multi-light driving apparatus |
US7928956B2 (en) * | 2002-11-20 | 2011-04-19 | Gigno Technology Co., Ltd. | Digital controlled multi-light driving apparatus and driving-control method for driving and controlling lights |
US7872431B2 (en) | 2002-11-20 | 2011-01-18 | Gigno Technology Co., Ltd. | Digital controlled multi-light driving apparatus |
US7151345B2 (en) * | 2003-02-06 | 2006-12-19 | Ceyx Technologies, Inc. | Method and apparatus for controlling visual enhancement of luminent devices |
TW583469B (en) * | 2003-03-28 | 2004-04-11 | Au Optronics Corp | Back light module and liquid crystal display |
NZ526028A (en) * | 2003-05-21 | 2006-02-24 | Pure Depth Ltd | Backlighting system for display screen utilised to control the distribution of power to at least one light source |
KR100552903B1 (ko) * | 2003-06-03 | 2006-02-22 | 엘지.필립스 엘시디 주식회사 | 액정표시장치의 램프 구동장치 |
US7187139B2 (en) | 2003-09-09 | 2007-03-06 | Microsemi Corporation | Split phase inverters for CCFL backlight system |
US6856096B1 (en) * | 2003-09-29 | 2005-02-15 | Osram Sylvania, Inc. | Ballast with load-adaptable fault detection circuit |
JP2005129004A (ja) * | 2003-10-03 | 2005-05-19 | Sharp Corp | 駆動システムおよび交流変換装置 |
US7151346B2 (en) * | 2003-11-06 | 2006-12-19 | Ceyx Technologies, Inc. | Method and apparatus for optimizing power efficiency in light emitting device arrays |
JP2007511062A (ja) * | 2003-11-06 | 2007-04-26 | セイックス テクノロジーズ、インク | 発光機器の視覚的増強制御の方法と装置 |
KR20050062852A (ko) * | 2003-12-19 | 2005-06-28 | 삼성전자주식회사 | 액정 표시 장치, 표시 장치용 광원의 구동 장치 및 그방법 |
US7468722B2 (en) | 2004-02-09 | 2008-12-23 | Microsemi Corporation | Method and apparatus to control display brightness with ambient light correction |
US7436129B2 (en) * | 2004-02-27 | 2008-10-14 | Honeywell International Inc. | Triple-loop fluorescent lamp driver |
US7928665B2 (en) * | 2004-02-27 | 2011-04-19 | Honeywell International Inc. | System and methods for dimming a high pressure arc lamp |
US7312780B2 (en) * | 2004-02-27 | 2007-12-25 | Honeywell International, Inc. | Fluorescent lamp driver system |
DE102004012215B4 (de) * | 2004-03-12 | 2020-03-26 | Tridonic Gmbh & Co Kg | Ansteuerung von Leuchtmittel-Betriebsgeräten mit einem zentralen kaskadierten AC/DC-Konverter |
KR100595313B1 (ko) * | 2004-03-15 | 2006-07-03 | 엘지.필립스 엘시디 주식회사 | 백라이트 유닛의 램프 점등장치 |
WO2005099316A2 (en) | 2004-04-01 | 2005-10-20 | Microsemi Corporation | Full-bridge and half-bridge compatible driver timing schedule for direct drive backlight system |
KR101067167B1 (ko) * | 2004-04-19 | 2011-09-22 | 엘지디스플레이 주식회사 | 램프구동장치 및 이를 구비한 액정표시장치 |
TWI277282B (en) * | 2004-04-26 | 2007-03-21 | Delta Electronics Inc | New structured power supply system for a LCD apparatus |
TWI265755B (en) * | 2004-05-04 | 2006-11-01 | Beyond Innovation Tech Co Ltd | Lamp duplexing protection device and its operational method |
KR101046924B1 (ko) * | 2004-05-11 | 2011-07-06 | 삼성전자주식회사 | 백라이트 어셈블리 및 이를 구비한 디스플레이 장치 |
KR101012800B1 (ko) | 2004-05-13 | 2011-02-08 | 삼성전자주식회사 | 표시 장치용 광원의 구동 장치 |
KR101142468B1 (ko) | 2004-05-17 | 2012-05-16 | 소니 주식회사 | 전원장치 및 디스플레이장치 |
KR101050891B1 (ko) * | 2004-05-31 | 2011-07-20 | 엘지디스플레이 주식회사 | 인버터 보호용 쉴드 커버 및 이를 채용한 액정표시장치 |
US7755595B2 (en) | 2004-06-07 | 2010-07-13 | Microsemi Corporation | Dual-slope brightness control for transflective displays |
KR101131306B1 (ko) * | 2004-06-30 | 2012-03-30 | 엘지디스플레이 주식회사 | 액정표시장치의 백라이트 유닛 |
US7173379B2 (en) * | 2004-07-30 | 2007-02-06 | Microsemi Corporation | Incremental distributed driver |
US20070279368A1 (en) * | 2004-09-01 | 2007-12-06 | Drs Tactical Systems, Inc. | Low intensity displays compatible with night vision imaging systems |
TWI236526B (en) * | 2004-09-15 | 2005-07-21 | Au Optronics Corp | Lamp driving device |
TWI275324B (en) * | 2004-12-31 | 2007-03-01 | Hon Hai Prec Ind Co Ltd | Multi-lamp driving system |
KR100646427B1 (ko) * | 2005-03-04 | 2006-11-23 | 삼성전자주식회사 | 병렬 구동이 가능한 램프 결합 구조 |
US7291987B2 (en) * | 2005-06-17 | 2007-11-06 | Hon Hai Precision Industry Co., Ltd. | Power supply system for flat panel display devices |
KR101174153B1 (ko) * | 2005-06-29 | 2012-08-14 | 엘지디스플레이 주식회사 | 백라이트 구동장치 및 이를 구비한 액정표시장치 |
TWI309812B (en) * | 2005-11-25 | 2009-05-11 | Innolux Display Corp | Backlight broken protecting circuit |
KR20070074999A (ko) * | 2006-01-11 | 2007-07-18 | 삼성전자주식회사 | 램프 구동 장치 및 이를 갖는 액정 표시 장치 |
US8344658B2 (en) * | 2006-01-19 | 2013-01-01 | International Rectifier Corporation | Cold-cathode fluorescent lamp multiple lamp current matching circuit |
KR101243427B1 (ko) * | 2006-03-03 | 2013-03-13 | 엘지디스플레이 주식회사 | 액정표시소자의 백라이트 어셈블리의 구동 장치 |
US7569998B2 (en) | 2006-07-06 | 2009-08-04 | Microsemi Corporation | Striking and open lamp regulation for CCFL controller |
TWI341511B (en) * | 2006-11-03 | 2011-05-01 | Chimei Innolux Corp | Power supply circuit |
US8164587B2 (en) * | 2007-05-30 | 2012-04-24 | Himax Technologies Limited | LCD power supply |
US20080316188A1 (en) * | 2007-06-20 | 2008-12-25 | Tovis Co., Ltd. | Liquid crystal display comprising driving circuit unit |
US7773397B2 (en) * | 2007-06-29 | 2010-08-10 | Dell Products L.P. | Method and system of controlling a power inverter |
CN101897196A (zh) * | 2007-08-22 | 2010-11-24 | 普尔·代普斯有限公司 | 确定多组件显示器的空隙漫射器的位置 |
TW200919410A (en) * | 2007-10-26 | 2009-05-01 | Quanta Comp Inc | Driving apparatus, backlight module, and driving method |
KR101229774B1 (ko) * | 2008-01-25 | 2013-02-06 | 엘지디스플레이 주식회사 | 액정표시장치의 백라이트 구동상태 표시 장치 및 방법 |
KR100864905B1 (ko) * | 2008-04-18 | 2008-10-22 | 삼성전기주식회사 | 램프 구동 회로 |
CN101583228B (zh) * | 2008-05-16 | 2012-10-03 | 国琏电子(上海)有限公司 | 灯管控制系统 |
KR100971145B1 (ko) * | 2008-08-09 | 2010-07-20 | 안상훈 | 임플란트 시술용 본캐리어 |
US8093839B2 (en) | 2008-11-20 | 2012-01-10 | Microsemi Corporation | Method and apparatus for driving CCFL at low burst duty cycle rates |
CN101765266A (zh) * | 2008-12-26 | 2010-06-30 | 立锜科技股份有限公司 | 发光元件驱动控制电路与方法 |
US7908037B2 (en) * | 2009-03-27 | 2011-03-15 | General Electric Company | Pre-programmed energy management ballast or driver |
KR101773489B1 (ko) | 2010-09-27 | 2017-08-31 | 삼성전자주식회사 | 전원 공급 장치 및 이를 포함하는 디스플레이 장치 |
US9197838B2 (en) * | 2012-12-07 | 2015-11-24 | Jack Gershfeld | System for supplying AC power to a display via a low voltage cable |
CN113327565B (zh) * | 2021-04-15 | 2022-08-30 | 深圳市聚酷智能科技有限公司 | 显示方法、信号分析器及电子设备 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06283285A (ja) * | 1992-12-28 | 1994-10-07 | Fujitsu Kiden Ltd | 冷陰極放電管表示装置及びその駆動回路 |
JPH08213184A (ja) * | 1995-02-09 | 1996-08-20 | Hitachi Ltd | 放電灯点灯装置およびそれを用いた液晶バックライト |
US5854617A (en) * | 1995-05-12 | 1998-12-29 | Samsung Electronics Co., Ltd. | Circuit and a method for controlling a backlight of a liquid crystal display in a portable computer |
US6153987A (en) * | 1996-06-07 | 2000-11-28 | Koito Manufacturing Co., Ltd. | Lighting circuit for discharge lamp |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5272327A (en) * | 1992-05-26 | 1993-12-21 | Compaq Computer Corporation | Constant brightness liquid crystal display backlight control system |
US5844378A (en) * | 1995-01-25 | 1998-12-01 | Micro Linear Corp | High side driver technique for miniature cold cathode fluorescent lamp system |
TW520618B (en) * | 1999-10-21 | 2003-02-11 | Matsushita Electric Ind Co Ltd | Fluorescent lamp operating apparatus and compact self-ballasted fluorescent lamp |
US6674250B2 (en) * | 2000-04-15 | 2004-01-06 | Guang-Sup Cho | Backlight including external electrode fluorescent lamp and method for driving the same |
KR100365956B1 (ko) * | 2000-06-16 | 2002-12-26 | (주)동일기연 | 2등용 엘씨디 백라이트용 인버터의 구동회로 |
US6692137B2 (en) * | 2001-05-11 | 2004-02-17 | L-3 Communications | Display system using a hybrid backlight reflector |
-
2002
- 2002-01-31 KR KR1020020005731A patent/KR100840933B1/ko not_active IP Right Cessation
- 2002-10-18 US US10/273,837 patent/US6947024B2/en not_active Expired - Fee Related
- 2002-10-23 TW TW091124566A patent/TW558711B/zh not_active IP Right Cessation
- 2002-11-21 JP JP2002337478A patent/JP4130767B2/ja not_active Expired - Fee Related
- 2002-11-29 CN CNB021529833A patent/CN100448333C/zh not_active Expired - Fee Related
-
2005
- 2005-08-31 US US11/217,006 patent/US8390561B2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06283285A (ja) * | 1992-12-28 | 1994-10-07 | Fujitsu Kiden Ltd | 冷陰極放電管表示装置及びその駆動回路 |
JPH08213184A (ja) * | 1995-02-09 | 1996-08-20 | Hitachi Ltd | 放電灯点灯装置およびそれを用いた液晶バックライト |
US5854617A (en) * | 1995-05-12 | 1998-12-29 | Samsung Electronics Co., Ltd. | Circuit and a method for controlling a backlight of a liquid crystal display in a portable computer |
US6153987A (en) * | 1996-06-07 | 2000-11-28 | Koito Manufacturing Co., Ltd. | Lighting circuit for discharge lamp |
Also Published As
Publication number | Publication date |
---|---|
KR20030065219A (ko) | 2003-08-06 |
JP2003229290A (ja) | 2003-08-15 |
US20060050048A1 (en) | 2006-03-09 |
US8390561B2 (en) | 2013-03-05 |
JP4130767B2 (ja) | 2008-08-06 |
CN1436030A (zh) | 2003-08-13 |
US6947024B2 (en) | 2005-09-20 |
US20030142060A1 (en) | 2003-07-31 |
KR100840933B1 (ko) | 2008-06-24 |
TW558711B (en) | 2003-10-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN100448333C (zh) | 灯驱动装置和具有灯驱动装置的液晶显示器 | |
US7319600B2 (en) | Apparatus for supplying power and liquid crystal display having the same | |
US8179053B2 (en) | Power supply for an LCD display | |
KR100857848B1 (ko) | 백라이트 어셈블리와 이의 구동 방법과 이를 갖는 액정 표시 장치 | |
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 | |
CN102214432B (zh) | 电源管理与控制模块以及液晶显示器 | |
US7397198B2 (en) | Fluorescent lamp driver and liquid crystal display apparatus | |
KR101252842B1 (ko) | 백 라이트의 구동 장치 | |
US20080111496A1 (en) | Driving circuit for multi-lamps | |
KR101026806B1 (ko) | 표시 장치, 표시 장치용 광원의 구동 장치 및 dc-dc변환 장치 | |
CN1711807B (zh) | 电源供给装置、背光源组件及具有它们的液晶显示装置 | |
US6597130B2 (en) | Driving apparatus of discharge tube lamp | |
US20070001618A1 (en) | Driving apparatus for lamp of liquid crystal display device | |
JP3101783U (ja) | デジタル制御による多光源駆動装置 | |
CN201369867Y (zh) | 多灯管驱动系统 | |
CN100516895C (zh) | 放电灯驱动装置及其应用的电压侦测电路 | |
CN101038380B (zh) | 液晶显示器及其电源供应电路 | |
KR100478412B1 (ko) | 외부전극 형광램프용 인버터 | |
KR101441394B1 (ko) | 백 라이트 유닛과 이를 이용한 액정 표시장치 및 그의구동방법 | |
KR20060016224A (ko) | 외부전극 형광램프용 인버터 | |
KR20050000992A (ko) | 램프의 구동장치 및 구동방법 | |
JP2008287128A (ja) | 蛍光灯の点灯表示装置 |
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: 20121030 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20121030 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: 20081231 Termination date: 20161129 |
|
CF01 | Termination of patent right due to non-payment of annual fee |