KR100810159B1 - 액정표시장치의 구동전압 발생회로 - Google Patents
액정표시장치의 구동전압 발생회로 Download PDFInfo
- Publication number
- KR100810159B1 KR100810159B1 KR1020020012451A KR20020012451A KR100810159B1 KR 100810159 B1 KR100810159 B1 KR 100810159B1 KR 1020020012451 A KR1020020012451 A KR 1020020012451A KR 20020012451 A KR20020012451 A KR 20020012451A KR 100810159 B1 KR100810159 B1 KR 100810159B1
- Authority
- KR
- South Korea
- Prior art keywords
- voltage
- node
- display device
- pcb
- power supply
- Prior art date
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Classifications
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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
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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
- G09G3/3685—Details of drivers for data electrodes
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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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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Optics & Photonics (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
- Dc-Dc Converters (AREA)
Abstract
Description
Claims (3)
- 전원공급용 인쇄회로기판(PCB)과 소오스 PCB 및 게이트 PCB를 구비한 액정표시장치에 있어서,상기 전원공급용 PCB는, 입력전압을 수신하여 액정표시장치에 필요한 전원전압으로 강하시켜 발생하는 강압 회로부와, 상기 강압 회로부로 부터의 전원전압과 영상신호를 입력하여 디스플레이 장치에 필요한 데이타 전압을 생성하고 이 데이타 전압을 표시패널에 정확하게 디스플레이 하기 위한 제 1 및 제 2 콘트롤 신호를 발생하는 데이타 및 콘트롤 신호 발생부를 포함하여 구성되며,상기 소오스 PCB는, 상기 입력전압을 수신하여 데이타기준전압을 승압시켜 발생하는 승압 회로부와, 상기 데이타기준전압과 상기 제 1 및 제 2 콘트롤 신호를 수신하여 온/오프 전압을 발생하는 전하 펌프 회로부를 포함하여 구성된 것을 특징으로 하는 액정표시장치의 구동전압 발생회로.
- 제 1 항에 있어서, 상기 승압 회로부는,상기 입력전압을 수신하여 상기 데이타기준전압을 발생하는 가변형 리니어 레귤레이터와, 상기 데이타기준전압을 전송하는 제 1 노드와 접지전압 사이에 직렬로 연결된 제 1 및 제 2 저항과, 상기 제 1 노드와 접지전압 사이에 접속된 제 1 캐패시터를 구비하며,상기 제 1 저항과 제 2 저항 사이에 접속된 제 2 노드의 신호를 상기 리니어 레귤레이터로 피드백 입력하는 것을 특징으로 하는 액정표시장치의 구동전압 발생회로.
- 제 1 항에 있어서, 상기 전하 펌프 회로부는,상기 제 1 콘트롤 전압과 제 3 노드 사이에 접속된 제 2 캐패시터와, 상기 제 3 노드에 캐소드가 접속되고 상기 데이타기준전압을 전송하는 제 1 노드에 애노드가 접속된 제 1 다이오드와, 상기 제 3 노드에 애노드가 접속되고 온 전압을 전송하는 제 4 노드에 캐소드가 접속된 제 2 다이오드와, 상기 제 4 노드와 접지전압 사이에 접속된 제 3 캐패시터로 구성되며,상기 제 2 콘트롤 전압과 제 5 노드 사이에 접속된 제 4 캐패시터와, 상기 제 5 노드에 애노드가 접속되고 접지전압에 캐소드가 접속된 제 3 다이오드와, 상기 제 5 노드에 캐소드가 접속되고 오프 전압을 전송하는 제 6 노드에 애노드가 접속된 제 4 다이오드와, 상기 제 6 노드와 접지전압 사이에 접속된 제 5 캐패시터로 구성된 것을 특징으로 하는 액정표시장치의 구동전압 발생회로.
Priority Applications (1)
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KR1020020012451A KR100810159B1 (ko) | 2002-03-08 | 2002-03-08 | 액정표시장치의 구동전압 발생회로 |
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KR1020020012451A KR100810159B1 (ko) | 2002-03-08 | 2002-03-08 | 액정표시장치의 구동전압 발생회로 |
Publications (2)
Publication Number | Publication Date |
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KR20030073070A KR20030073070A (ko) | 2003-09-19 |
KR100810159B1 true KR100810159B1 (ko) | 2008-03-06 |
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KR1020020012451A KR100810159B1 (ko) | 2002-03-08 | 2002-03-08 | 액정표시장치의 구동전압 발생회로 |
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Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101061855B1 (ko) | 2004-10-01 | 2011-09-02 | 삼성전자주식회사 | 구동 전압 생성 회로 및 이를 포함하는 표시 장치 |
KR101272176B1 (ko) * | 2006-03-08 | 2013-06-07 | 엘지디스플레이 주식회사 | 액정표시장치 |
KR101832172B1 (ko) | 2011-01-26 | 2018-02-27 | 삼성디스플레이 주식회사 | 액정표시장치 및 액정표시장치의 구동방법 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR960014497A (ko) * | 1994-10-27 | 1996-05-22 | 배순훈 | 세탁기의 헹굼설정방법 |
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- 2002-03-08 KR KR1020020012451A patent/KR100810159B1/ko active IP Right Grant
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR960014497A (ko) * | 1994-10-27 | 1996-05-22 | 배순훈 | 세탁기의 헹굼설정방법 |
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KR20030073070A (ko) | 2003-09-19 |
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