CN1921723A - 冷阴极管点灯装置、其使用的管电流检出电路和管电流控制方法 - Google Patents
冷阴极管点灯装置、其使用的管电流检出电路和管电流控制方法 Download PDFInfo
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- CN1921723A CN1921723A CNA2006101214338A CN200610121433A CN1921723A CN 1921723 A CN1921723 A CN 1921723A CN A2006101214338 A CNA2006101214338 A CN A2006101214338A CN 200610121433 A CN200610121433 A CN 200610121433A CN 1921723 A CN1921723 A CN 1921723A
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- 238000000034 method Methods 0.000 title claims description 22
- 230000006837 decompression Effects 0.000 claims description 15
- 230000009471 action Effects 0.000 claims description 13
- 238000012544 monitoring process Methods 0.000 claims description 13
- 239000000654 additive Substances 0.000 claims description 11
- 230000000996 additive effect Effects 0.000 claims description 11
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 description 33
- 238000005755 formation reaction Methods 0.000 description 33
- 238000010586 diagram Methods 0.000 description 15
- 230000002159 abnormal effect Effects 0.000 description 11
- 230000010355 oscillation Effects 0.000 description 9
- 238000001514 detection method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 238000007792 addition Methods 0.000 description 5
- 239000004973 liquid crystal related substance Substances 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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
- H05B41/2825—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 by means of a bridge converter in the final stage
- H05B41/2827—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 by means of a bridge converter in the final stage using specially adapted components in the load circuit, e.g. feed-back transformers, piezoelectric transformers; using specially adapted load circuit configurations
-
- 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
- H05B41/2825—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 by means of a bridge converter in the final stage
- H05B41/2828—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 by means of a bridge converter in the final stage using control circuits for the switching elements
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
Description
Claims (14)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005241682 | 2005-08-23 | ||
JP2005-241682 | 2005-08-23 | ||
JP2005241682A JP4797511B2 (ja) | 2005-08-23 | 2005-08-23 | 冷陰極管点灯装置、管電流制御方法、及び集積回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1921723A true CN1921723A (zh) | 2007-02-28 |
CN1921723B CN1921723B (zh) | 2010-05-26 |
Family
ID=37779235
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2006101214338A Active CN1921723B (zh) | 2005-08-23 | 2006-08-22 | 冷阴极管点灯装置、其使用的管电流检出电路和管电流控制方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7459865B2 (zh) |
JP (1) | JP4797511B2 (zh) |
CN (1) | CN1921723B (zh) |
TW (1) | TWI371990B (zh) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101237737B (zh) * | 2008-02-21 | 2011-09-21 | 友达光电股份有限公司 | 具灯管电流平衡及反馈机制的背光系统与其相关方法 |
CN101420810B (zh) * | 2007-10-24 | 2012-06-13 | 东芝照明技术株式会社 | 点灯装置及照明器具 |
TWI396158B (zh) * | 2008-01-21 | 2013-05-11 | Au Optronics Corp | 具燈管電流平衡及回授機制之背光系統與其相關方法 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101275966B1 (ko) * | 2007-05-11 | 2013-06-14 | 엘지디스플레이 주식회사 | 백라이트 유닛 및 이를 구비한 액정표시장치 |
WO2008149582A1 (ja) * | 2007-06-05 | 2008-12-11 | Sharp Kabushiki Kaisha | バックライトランプ点灯制御装置およびそれを備えた表示装置 |
JP5488959B2 (ja) * | 2009-03-06 | 2014-05-14 | Nltテクノロジー株式会社 | 放電管点灯装置及び液晶表示装置 |
US8405407B2 (en) * | 2009-06-05 | 2013-03-26 | Chimei Innolux Corporation | Current measurement circuit and measuring method thereof including a binary weighted capacitor array |
US20130082608A1 (en) * | 2011-09-29 | 2013-04-04 | Leviton Manufacturing Co., Inc. | Dimming ballast and related method allowing individual control of multiple lamps |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01142198U (zh) * | 1988-03-23 | 1989-09-28 | ||
US5384516A (en) * | 1991-11-06 | 1995-01-24 | Hitachi, Ltd. | Information processing apparatus including a control circuit for controlling a liquid crystal display illumination based on whether illuminatio power is being supplied from an AC power source or from a battery |
JPH0674089U (ja) * | 1992-12-14 | 1994-10-18 | 太陽誘電株式会社 | 冷陰極管点灯装置 |
JPH07274524A (ja) * | 1994-03-29 | 1995-10-20 | Toshiba Lighting & Technol Corp | 電源装置、放電灯点灯装置および照明装置 |
KR0137917B1 (ko) * | 1994-10-28 | 1998-05-15 | 김광호 | 액정표시소자의 후면광원 구동회로 |
JP2000150191A (ja) * | 1998-11-13 | 2000-05-30 | Murata Mfg Co Ltd | 冷陰極管駆動装置 |
JP2000235898A (ja) * | 1999-02-16 | 2000-08-29 | Hitachi Metals Ltd | 蛍光管の駆動回路 |
JP4058530B2 (ja) | 1999-08-06 | 2008-03-12 | 三菱電機株式会社 | 液晶表示装置のバックライト用他励式インバータ |
JP2002017090A (ja) | 2000-04-27 | 2002-01-18 | Matsushita Electric Ind Co Ltd | 圧電トランスの駆動方法および駆動装置 |
JP4300810B2 (ja) | 2003-02-03 | 2009-07-22 | パナソニック株式会社 | 放電灯点灯装置 |
JP2004335443A (ja) | 2003-02-10 | 2004-11-25 | Masakazu Ushijima | 多灯点灯の放電管用インバータ回路及び面光源システム |
JP2004265700A (ja) * | 2003-02-28 | 2004-09-24 | Toshiba Lighting & Technology Corp | 電球形蛍光ランプ |
JP3096242U (ja) | 2003-03-04 | 2003-09-12 | 船井電機株式会社 | テレビ受像機および冷陰極管調光装置 |
US6936975B2 (en) * | 2003-04-15 | 2005-08-30 | 02Micro International Limited | Power supply for an LCD panel |
JP2005005059A (ja) * | 2003-06-10 | 2005-01-06 | Fdk Corp | 放電管点灯用他励式インバータ回路 |
JP4554989B2 (ja) * | 2003-07-30 | 2010-09-29 | パナソニック株式会社 | 冷陰極管点灯装置 |
KR100953429B1 (ko) | 2003-08-11 | 2010-04-20 | 삼성전자주식회사 | 램프 구동 방법 및 그 장치와, 이를 갖는 백라이트어셈블리 및 액정 표시 장치 |
US7126289B2 (en) * | 2004-08-20 | 2006-10-24 | O2 Micro Inc | Protection for external electrode fluorescent lamp system |
-
2005
- 2005-08-23 JP JP2005241682A patent/JP4797511B2/ja active Active
-
2006
- 2006-08-22 CN CN2006101214338A patent/CN1921723B/zh active Active
- 2006-08-22 US US11/507,675 patent/US7459865B2/en active Active
- 2006-08-23 TW TW095130975A patent/TWI371990B/zh active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101420810B (zh) * | 2007-10-24 | 2012-06-13 | 东芝照明技术株式会社 | 点灯装置及照明器具 |
TWI396158B (zh) * | 2008-01-21 | 2013-05-11 | Au Optronics Corp | 具燈管電流平衡及回授機制之背光系統與其相關方法 |
CN101237737B (zh) * | 2008-02-21 | 2011-09-21 | 友达光电股份有限公司 | 具灯管电流平衡及反馈机制的背光系统与其相关方法 |
Also Published As
Publication number | Publication date |
---|---|
US7459865B2 (en) | 2008-12-02 |
CN1921723B (zh) | 2010-05-26 |
TW200731874A (en) | 2007-08-16 |
JP2007059155A (ja) | 2007-03-08 |
TWI371990B (en) | 2012-09-01 |
US20070046216A1 (en) | 2007-03-01 |
JP4797511B2 (ja) | 2011-10-19 |
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Owner name: NIPPON ELECTRIC CO., LTD. Free format text: FORMER OWNER: NEC LCD TECHNOLOGY CO.,LTD Effective date: 20100613 |
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Effective date of registration: 20100613 Address after: Tokyo, Japan Patentee after: NEC Corp. Address before: Kawasaki, Kanagawa, Japan Patentee before: NEC LCD Technologies, Ltd. |
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Owner name: JINZHEN CO., LTD. Free format text: FORMER OWNER: NEC CORP. Effective date: 20130402 |
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Effective date of registration: 20130402 Address after: Samoa Apia hiSoft Center No. 217 mailbox Patentee after: Jinzhen Co.,Ltd. Address before: Tokyo, Japan Patentee before: NEC Corp. |
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Effective date of registration: 20230505 Address after: Floor 4, No. 15, Lane 168, Xingshan Road, Neihu District, Taipei City, Taiwan, China, 114762, China Patentee after: HANNSTAR DISPLAY Corp. Address before: Apia, hiSoft center, No. 217 mailbox Patentee before: Jinzhen Co.,Ltd. |
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