KR100677967B1 - 액정표시장치용 전원공급회로 - Google Patents
액정표시장치용 전원공급회로 Download PDFInfo
- Publication number
- KR100677967B1 KR100677967B1 KR1020050116677A KR20050116677A KR100677967B1 KR 100677967 B1 KR100677967 B1 KR 100677967B1 KR 1020050116677 A KR1020050116677 A KR 1020050116677A KR 20050116677 A KR20050116677 A KR 20050116677A KR 100677967 B1 KR100677967 B1 KR 100677967B1
- Authority
- KR
- South Korea
- Prior art keywords
- power
- transformer
- unit
- power supply
- lamp
- Prior art date
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 22
- 238000004804 winding Methods 0.000 claims abstract description 31
- 238000000034 method Methods 0.000 claims abstract description 5
- 239000003990 capacitor Substances 0.000 claims description 10
- 230000010355 oscillation Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 238000009499 grossing Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010248 power generation Methods 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
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- 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
- H05B41/2821—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 single-switch converter or a parallel push-pull converter in the final stage
- H05B41/2822—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 single-switch converter or a parallel push-pull 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
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- 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
-
- 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
- H05B41/36—Controlling
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
- Liquid Crystal Display Device Control (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
Description
Claims (3)
- 고주파의 교류전원을 발생시키기 위한 교류전원 발생부와;상기 교류전원 발생부에 의해 공급되는 교류전원을 변환시키기 위한 트랜스포머와;상기 트랜스포머 2차측의 제 1 권선부에 연결되며, 상기 제 1 권선부로부터 출력된 교류전원을 공급받아 시스템 구동용 직류전원을 발생시킬 수 있도록 정류하기 위한 정류부; 및상기 트랜스포머에 의해 상기 시스템 구동용 직류전원과 백라이트 램프용 교류전원을 공급할 수 있도록, 상기 트랜스포머 2차측의 제 2 권선부에 연결되며, 상기 제 2 권선부로부터 출력된 교류전원을 공급받아 상기 백라이트 램프로 출력시키기 위한 램프 전원 출력부를 포함하는 것을 특징으로 하는 액정표시장치용 전원공급회로.
- 제 1항에 있어서,상기 제 2 권선부는, 복수개의 백라이트 램프에 교류전원을 공급할 수 있도록, 복수개의 권선부를 포함하는 것을 특징으로 하는 액정표시 장치용 전원공급회로.
- 제 1항에 있어서,상기 정류부는, 상기 교류전원 발생부에서 발생되는 전원 주파수에 따라 정류 특성을 변환시킬 수 있도록 가변 콘덴서를 포함하는 것을 특징으로 하는 액정표시장치용 전원공급회로.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020050116677A KR100677967B1 (ko) | 2005-12-02 | 2005-12-02 | 액정표시장치용 전원공급회로 |
CNA2006101088759A CN1892802A (zh) | 2005-12-02 | 2006-08-17 | 液晶显示装置用电源电路 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020050116677A KR100677967B1 (ko) | 2005-12-02 | 2005-12-02 | 액정표시장치용 전원공급회로 |
Publications (1)
Publication Number | Publication Date |
---|---|
KR100677967B1 true KR100677967B1 (ko) | 2007-02-02 |
Family
ID=37597600
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020050116677A KR100677967B1 (ko) | 2005-12-02 | 2005-12-02 | 액정표시장치용 전원공급회로 |
Country Status (2)
Country | Link |
---|---|
KR (1) | KR100677967B1 (ko) |
CN (1) | CN1892802A (ko) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20050005905A (ko) * | 2003-07-07 | 2005-01-15 | 삼성전자주식회사 | 전원 공급 장치 및 이를 이용한 액정 표시 장치 |
-
2005
- 2005-12-02 KR KR1020050116677A patent/KR100677967B1/ko active IP Right Grant
-
2006
- 2006-08-17 CN CNA2006101088759A patent/CN1892802A/zh active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20050005905A (ko) * | 2003-07-07 | 2005-01-15 | 삼성전자주식회사 | 전원 공급 장치 및 이를 이용한 액정 표시 장치 |
Also Published As
Publication number | Publication date |
---|---|
CN1892802A (zh) | 2007-01-10 |
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