KR20020030131A - Lcd 백라이트용 전압상승회로 - Google Patents
Lcd 백라이트용 전압상승회로 Download PDFInfo
- Publication number
- KR20020030131A KR20020030131A KR1020000060649A KR20000060649A KR20020030131A KR 20020030131 A KR20020030131 A KR 20020030131A KR 1020000060649 A KR1020000060649 A KR 1020000060649A KR 20000060649 A KR20000060649 A KR 20000060649A KR 20020030131 A KR20020030131 A KR 20020030131A
- Authority
- KR
- South Korea
- Prior art keywords
- transformer
- winding
- circuit
- voltage
- output
- 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.)
- Ceased
Links
- 238000004804 winding Methods 0.000 claims abstract description 26
- 239000003990 capacitor Substances 0.000 claims abstract description 17
- 230000005284 excitation Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 2
- 230000000630 rising effect Effects 0.000 abstract description 9
- 239000013078 crystal Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
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
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3696—Generation of voltages supplied to electrode drivers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Optics & Photonics (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
Description
Claims (3)
- 다수의 권선을 포함하고, 제 1 및 제 2 권선은 각각 제 1 및 제 2 트랜지스터와 연결되고 제 1 및 제 2 트랜지스터로 바이어스전압을 공급하며, 제 3 권선은 상기 트랜지스터의 출력과 직렬로 연결된 바이어스변압기;전원과 상기 바이어스변압기 사이에 직렬로 연결된 제 1 권선, 및 고전압 교류 출력단자를 형성하는 제 2 권선을 갖는 출력변압기; 및상기 출력변압기의 상기 제 1 권선과 직렬로 연결된 커패시터를 포함하는 것을 특징으로 하는 LCD 백라이트용 전압상승회로.
- 제 1 항에 있어서,상기 바이어스변압기는 각각 트랜지스터의 이미터와 베이스 사이에 연결되는 것을 특징으로 하는 LCD 백라이트용 전압상승회로.
- 제 1 항에 있어서,상기 제 1 트랜지스터와 전원 사이에 직렬로 연결된 여기레지스터를 포함하는 것을 특징으로 하는 LCD 백라이트용 전압상승회로.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020000060649A KR20020030131A (ko) | 2000-10-16 | 2000-10-16 | Lcd 백라이트용 전압상승회로 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020000060649A KR20020030131A (ko) | 2000-10-16 | 2000-10-16 | Lcd 백라이트용 전압상승회로 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20020030131A true KR20020030131A (ko) | 2002-04-24 |
Family
ID=37479480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020000060649A Ceased KR20020030131A (ko) | 2000-10-16 | 2000-10-16 | Lcd 백라이트용 전압상승회로 |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR20020030131A (ko) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR930022593U (ko) * | 1992-03-07 | 1993-10-16 | 세광기전공업 주식회사 | 방전등용 전자식 안정기의 고압펄스 발생 장치 |
| JPH0799093A (ja) * | 1993-09-29 | 1995-04-11 | Toshiba Lighting & Technol Corp | 放電灯点灯装置および照明装置 |
| WO1996006282A2 (en) * | 1994-08-08 | 1996-02-29 | Julius Waweru Mungai | Gravity driven worm and gear energy pack |
| KR970058385A (ko) * | 1995-12-22 | 1997-07-31 | 타실로 다우너; 랄프 프레준 | 램프 동작용 회로 장치 |
| JPH09238473A (ja) * | 1996-02-29 | 1997-09-09 | Toshiba Lighting & Technol Corp | 電源装置、放電灯点灯装置及び照明器具 |
| JPH09308257A (ja) * | 1996-05-16 | 1997-11-28 | Toshiba Lighting & Technol Corp | 電源装置、放電ランプ点灯装置及び照明装置 |
-
2000
- 2000-10-16 KR KR1020000060649A patent/KR20020030131A/ko not_active Ceased
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR930022593U (ko) * | 1992-03-07 | 1993-10-16 | 세광기전공업 주식회사 | 방전등용 전자식 안정기의 고압펄스 발생 장치 |
| JPH0799093A (ja) * | 1993-09-29 | 1995-04-11 | Toshiba Lighting & Technol Corp | 放電灯点灯装置および照明装置 |
| WO1996006282A2 (en) * | 1994-08-08 | 1996-02-29 | Julius Waweru Mungai | Gravity driven worm and gear energy pack |
| KR970058385A (ko) * | 1995-12-22 | 1997-07-31 | 타실로 다우너; 랄프 프레준 | 램프 동작용 회로 장치 |
| JPH09238473A (ja) * | 1996-02-29 | 1997-09-09 | Toshiba Lighting & Technol Corp | 電源装置、放電灯点灯装置及び照明器具 |
| JPH09308257A (ja) * | 1996-05-16 | 1997-11-28 | Toshiba Lighting & Technol Corp | 電源装置、放電ランプ点灯装置及び照明装置 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PA0109 | Patent application |
Patent event code: PA01091R01D Comment text: Patent Application Patent event date: 20001016 |
|
| PG1501 | Laying open of application | ||
| A201 | Request for examination | ||
| PA0201 | Request for examination |
Patent event code: PA02012R01D Patent event date: 20030306 Comment text: Request for Examination of Application Patent event code: PA02011R01I Patent event date: 20001016 Comment text: Patent Application |
|
| E902 | Notification of reason for refusal | ||
| PE0902 | Notice of grounds for rejection |
Comment text: Notification of reason for refusal Patent event date: 20050530 Patent event code: PE09021S01D |
|
| E601 | Decision to refuse application | ||
| PE0601 | Decision on rejection of patent |
Patent event date: 20051005 Comment text: Decision to Refuse Application Patent event code: PE06012S01D Patent event date: 20050530 Comment text: Notification of reason for refusal Patent event code: PE06011S01I |