CN1527650A - 灯驱动装置、背光组件以及使用它们的液晶显示装置 - Google Patents
灯驱动装置、背光组件以及使用它们的液晶显示装置 Download PDFInfo
- Publication number
- CN1527650A CN1527650A CNA031580742A CN03158074A CN1527650A CN 1527650 A CN1527650 A CN 1527650A CN A031580742 A CNA031580742 A CN A031580742A CN 03158074 A CN03158074 A CN 03158074A CN 1527650 A CN1527650 A CN 1527650A
- Authority
- CN
- China
- Prior art keywords
- lamp
- module
- transducer
- voltage
- substrate
- 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
Links
Images
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
- H05B41/26—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
-
- 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
-
- 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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
- G02F1/133314—Back frames
-
- 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
- G02F1/133605—Direct backlight including specially adapted reflectors
-
- 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
-
- 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
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/58—Arrangements comprising a monitoring photodetector
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)
- Planar Illumination Modules (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
- Liquid Crystal (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Description
Claims (22)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR13178/2003 | 2003-03-03 | ||
KR1020030013178A KR100937714B1 (ko) | 2003-03-03 | 2003-03-03 | 램프 구동 장치, 이를 이용한 백라이트 어셈블리 및 이를이용한 액정표시장치 |
KR13178/03 | 2003-03-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1527650A true CN1527650A (zh) | 2004-09-08 |
CN100469207C CN100469207C (zh) | 2009-03-11 |
Family
ID=32923771
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB031580742A Expired - Fee Related CN100469207C (zh) | 2003-03-03 | 2003-09-04 | 灯驱动装置、背光组件以及使用它们的液晶显示装置 |
Country Status (5)
Country | Link |
---|---|
US (2) | US7126575B2 (zh) |
JP (1) | JP4477903B2 (zh) |
KR (1) | KR100937714B1 (zh) |
CN (1) | CN100469207C (zh) |
TW (1) | TWI327874B (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102192446A (zh) * | 2010-02-24 | 2011-09-21 | 东芝照明技术株式会社 | 光源单元以及照明装置 |
CN101636028B (zh) * | 2008-07-25 | 2012-10-31 | 国琏电子(上海)有限公司 | 保护电路及使用其的灯管驱动装置 |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100878217B1 (ko) * | 2001-08-28 | 2009-01-14 | 삼성전자주식회사 | 액정표시장치 및 이의 구동 방법 |
KR100936180B1 (ko) * | 2003-03-03 | 2010-01-11 | 삼성전자주식회사 | 백라이트 어셈블리 및 이를 이용한 액정표시장치 |
KR100937714B1 (ko) * | 2003-03-03 | 2010-01-20 | 삼성전자주식회사 | 램프 구동 장치, 이를 이용한 백라이트 어셈블리 및 이를이용한 액정표시장치 |
KR100964613B1 (ko) | 2003-09-04 | 2010-06-21 | 삼성전자주식회사 | 램프 모니터링 장치, 이를 갖는 램프 모니터링 시스템,이를 갖는 백라이트 어셈블리 및 이를 이용한 액정표시장치 |
KR101110132B1 (ko) | 2004-11-24 | 2012-02-10 | 엘지디스플레이 주식회사 | 램프 오픈 감지회로와 감지방법 및 그 디스플레이 장치 |
KR101094773B1 (ko) * | 2004-12-24 | 2011-12-16 | 엘지디스플레이 주식회사 | 평판 디스플레이 패널용 백라이트 유니트 |
TWI406042B (zh) * | 2004-12-27 | 2013-08-21 | Samsung Display Co Ltd | 容接器,具容接器之背光組件,及具背光組件之顯示裝置 |
KR101068833B1 (ko) * | 2005-03-03 | 2011-09-29 | 엘지디스플레이 주식회사 | 오픈 램프 감지를 위한 백라이트 유닛과 이를 구비한 디스플레이 장치 및 이의 램프 제어방법 |
KR101080135B1 (ko) * | 2005-03-30 | 2011-11-04 | 엘지디스플레이 주식회사 | 오픈 램프 감지회로 및 감지 방법 |
JP4904905B2 (ja) * | 2005-06-08 | 2012-03-28 | ソニー株式会社 | 冷陰極蛍光灯、冷陰極蛍光灯駆動装置、冷陰極蛍光灯装置、液晶表示装置、冷陰極蛍光灯の制御方法、液晶表示装置の制御方法 |
TW200719047A (en) * | 2005-11-11 | 2007-05-16 | Hon Hai Prec Ind Co Ltd | Backlight module |
CN101496452A (zh) * | 2006-10-18 | 2009-07-29 | 夏普株式会社 | 照明装置及液晶显示装置 |
WO2008050402A1 (fr) * | 2006-10-24 | 2008-05-02 | Panasonic Corporation | Panneau à cristaux liquides, affichage à cristaux liquides et terminal portable |
TWM326640U (en) * | 2007-07-04 | 2008-02-01 | Coretronic Corp | Back light module and display apparatus using the same |
JP2009092724A (ja) * | 2007-10-04 | 2009-04-30 | Mitsubishi Electric Corp | 液晶表示装置 |
TWM364241U (en) * | 2008-11-28 | 2009-09-01 | Tron Intelligence Inc | Optical sensing type input device |
TWI768667B (zh) * | 2021-01-20 | 2022-06-21 | 緯創資通股份有限公司 | 直下式背光發光二極體顯示器與發光控制方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5739803A (en) * | 1994-01-24 | 1998-04-14 | Arithmos, Inc. | Electronic system for driving liquid crystal displays |
JPH10125124A (ja) * | 1996-10-22 | 1998-05-15 | Sony Corp | バックライト装置 |
JPH10161083A (ja) * | 1996-11-27 | 1998-06-19 | Sony Corp | 液晶表示パネルのバックライト駆動装置 |
US6297791B1 (en) * | 1997-11-21 | 2001-10-02 | Seiko Epson Corporation | Adjustment method of display device |
KR20030015750A (ko) * | 2001-08-17 | 2003-02-25 | 엘지전자 주식회사 | 휘도 보정 장치 및 방법 |
KR100937714B1 (ko) * | 2003-03-03 | 2010-01-20 | 삼성전자주식회사 | 램프 구동 장치, 이를 이용한 백라이트 어셈블리 및 이를이용한 액정표시장치 |
KR100936180B1 (ko) * | 2003-03-03 | 2010-01-11 | 삼성전자주식회사 | 백라이트 어셈블리 및 이를 이용한 액정표시장치 |
TWI377871B (en) * | 2003-10-17 | 2012-11-21 | Samsung Display Co Ltd | Power supply system and liquid crystal display device having the same |
-
2003
- 2003-03-03 KR KR1020030013178A patent/KR100937714B1/ko not_active IP Right Cessation
- 2003-07-28 US US10/629,056 patent/US7126575B2/en not_active Expired - Fee Related
- 2003-07-28 TW TW092120540A patent/TWI327874B/zh not_active IP Right Cessation
- 2003-09-04 CN CNB031580742A patent/CN100469207C/zh not_active Expired - Fee Related
-
2004
- 2004-03-03 JP JP2004058752A patent/JP4477903B2/ja not_active Expired - Fee Related
-
2006
- 2006-09-27 US US11/535,806 patent/US7532193B2/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101636028B (zh) * | 2008-07-25 | 2012-10-31 | 国琏电子(上海)有限公司 | 保护电路及使用其的灯管驱动装置 |
CN102192446A (zh) * | 2010-02-24 | 2011-09-21 | 东芝照明技术株式会社 | 光源单元以及照明装置 |
Also Published As
Publication number | Publication date |
---|---|
CN100469207C (zh) | 2009-03-11 |
TWI327874B (en) | 2010-07-21 |
US7532193B2 (en) | 2009-05-12 |
JP2004265869A (ja) | 2004-09-24 |
TW200418345A (en) | 2004-09-16 |
KR20040078305A (ko) | 2004-09-10 |
US7126575B2 (en) | 2006-10-24 |
US20070090777A1 (en) | 2007-04-26 |
US20040174332A1 (en) | 2004-09-09 |
KR100937714B1 (ko) | 2010-01-20 |
JP4477903B2 (ja) | 2010-06-09 |
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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 DISPLAY CO., LTD. Free format text: FORMER OWNER: SAMSUNG ELECTRONICS CO., LTD. Effective date: 20121102 |
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C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20121102 Address after: Gyeonggi Do, South Korea Patentee after: Samsung Display Co., Ltd. Address before: Gyeonggi Do, South Korea Patentee before: Samsung Electronics Co., Ltd. |
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CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090311 Termination date: 20170904 |