KR100658067B1 - 액정 표시장치의 전원공급 회로 - Google Patents
액정 표시장치의 전원공급 회로 Download PDFInfo
- Publication number
- KR100658067B1 KR100658067B1 KR1020000064997A KR20000064997A KR100658067B1 KR 100658067 B1 KR100658067 B1 KR 100658067B1 KR 1020000064997 A KR1020000064997 A KR 1020000064997A KR 20000064997 A KR20000064997 A KR 20000064997A KR 100658067 B1 KR100658067 B1 KR 100658067B1
- Authority
- KR
- South Korea
- Prior art keywords
- power supply
- supply circuit
- voltage
- output
- liquid crystal
- Prior art date
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Classifications
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- 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
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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
- G02F1/0121—Operation of devices; Circuit arrangements, not otherwise provided for in this subclass
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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
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/1365—Active matrix addressed cells in which the switching element is a two-electrode device
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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
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mathematical Physics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Dc-Dc Converters (AREA)
Abstract
Description
Claims (4)
- 입력단으로 입력되는 입력전압의 레벨을 변경하여 출력단을 통해 출력전압으로 출력하고 출력전압을 피드백 받아 입력전압의 레벨 변경 정도를 조절하는, 액정 표시장치의 전원공급 회로에 있어서,상기 출력단과 입력단을 상기 입력전압에 의해 스위칭하는 스위칭 수단;을 포함하는 액정 표시장치의 전원공급 회로.
- 제 1 항에 있어서.상기 스위칭 수단의 게이트와 상기 전원공급 회로의 입력단 사이에 저항을 추가로 구비한 것을 특징으로 하는 액정 표시장치의 전원공급 회로.
- 제 1 항에 있어서.상기 스위칭 수단은 PNP형 바이폴라 트랜지스터인 것을 특징으로 하는 액정 표시장치의 전원공급 회로.
- 제 1 항에 있어서.상기 스위칭 수단은 NMOS형 트랜지스터인 것을 특징으로 하는 액정 표시장치의 전원공급 회로.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020000064997A KR100658067B1 (ko) | 2000-11-02 | 2000-11-02 | 액정 표시장치의 전원공급 회로 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020000064997A KR100658067B1 (ko) | 2000-11-02 | 2000-11-02 | 액정 표시장치의 전원공급 회로 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20020034598A KR20020034598A (ko) | 2002-05-09 |
KR100658067B1 true KR100658067B1 (ko) | 2006-12-15 |
Family
ID=19696979
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020000064997A KR100658067B1 (ko) | 2000-11-02 | 2000-11-02 | 액정 표시장치의 전원공급 회로 |
Country Status (1)
Country | Link |
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KR (1) | KR100658067B1 (ko) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04172493A (ja) * | 1990-11-06 | 1992-06-19 | Matsushita Electric Ind Co Ltd | 液晶表示装置保護回路 |
JPH04269707A (ja) * | 1991-02-26 | 1992-09-25 | Sanyo Electric Co Ltd | 液晶駆動回路 |
KR930012193U (ko) * | 1991-11-29 | 1993-06-25 | 엘지전자주식회사 | 전자기기의 부하 전원 차단 장치 |
JPH0996791A (ja) * | 1995-10-03 | 1997-04-08 | Sony Corp | 液晶表示装置 |
KR19980030034U (ko) * | 1996-11-28 | 1998-08-17 | 배순훈 | 모니터의 플라이백 트랜스포머 보호 장치 |
KR19990013698U (ko) * | 1997-09-29 | 1999-04-26 | 구자홍 | 전원부 보호 회로. |
US5945793A (en) * | 1996-02-24 | 1999-08-31 | Samsung Electronics Co., Ltd. | Display device having set protection function upon generation of abnormal voltage |
-
2000
- 2000-11-02 KR KR1020000064997A patent/KR100658067B1/ko active IP Right Grant
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04172493A (ja) * | 1990-11-06 | 1992-06-19 | Matsushita Electric Ind Co Ltd | 液晶表示装置保護回路 |
JPH04269707A (ja) * | 1991-02-26 | 1992-09-25 | Sanyo Electric Co Ltd | 液晶駆動回路 |
KR930012193U (ko) * | 1991-11-29 | 1993-06-25 | 엘지전자주식회사 | 전자기기의 부하 전원 차단 장치 |
JPH0996791A (ja) * | 1995-10-03 | 1997-04-08 | Sony Corp | 液晶表示装置 |
US5945793A (en) * | 1996-02-24 | 1999-08-31 | Samsung Electronics Co., Ltd. | Display device having set protection function upon generation of abnormal voltage |
KR19980030034U (ko) * | 1996-11-28 | 1998-08-17 | 배순훈 | 모니터의 플라이백 트랜스포머 보호 장치 |
KR19990013698U (ko) * | 1997-09-29 | 1999-04-26 | 구자홍 | 전원부 보호 회로. |
Also Published As
Publication number | Publication date |
---|---|
KR20020034598A (ko) | 2002-05-09 |
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