KR200204617Y1 - Lcd모니터의 수직화면 제어장치 - Google Patents
Lcd모니터의 수직화면 제어장치 Download PDFInfo
- Publication number
- KR200204617Y1 KR200204617Y1 KR2019960020736U KR19960020736U KR200204617Y1 KR 200204617 Y1 KR200204617 Y1 KR 200204617Y1 KR 2019960020736 U KR2019960020736 U KR 2019960020736U KR 19960020736 U KR19960020736 U KR 19960020736U KR 200204617 Y1 KR200204617 Y1 KR 200204617Y1
- Authority
- KR
- South Korea
- Prior art keywords
- signal
- frequency
- pass filter
- low pass
- lcd
- 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.)
- Expired - Lifetime
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G1/00—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data
- G09G1/06—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using single beam tubes, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows
- G09G1/08—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using single beam tubes, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows the beam directly tracing characters, the information to be displayed controlling the deflection and the intensity as a function of time in two spatial co-ordinates, e.g. according to a cartesian co-ordinate system
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/003—Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto
- G09G5/006—Details of the interface to the display terminal
- G09G5/008—Clock recovery
-
- 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
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/08—Details of timing specific for flat panels, other than clock recovery
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0606—Manual adjustment
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
Description
Claims (3)
- 호스트로부터 출력되는 미리 설정된 주파수의 수평 동기 신호와 상기 수평 동기 신호에 동기된 아날로그 비디오 신호를 받아들여 이미지를 LCD 패널 화면에 디스플레이하는 LCD 모니터 회로에 있어서: 기준 신호 입력단(P1)으로 입력되는 상기 수평 동기 신호와 비교 신호 입력단(P2)으로 입력되는 제2주파수의 제2펄스 신호를 받아들여 상기 수평 동기 신호의 주파수보다 높은 제1주파수의 제1펄스 신호를 발생하는 PLL(180)과; 상기 제1펄스 신호를 소정의 비율로 분주하여 상기 제2펄스 신호를 발생하는 주파수 디바이더(140)와; 상기 아날로그 비디오 신호를 상기 제1펄스 신호에 동기시켜 디지털 비디오 신호로 변환하는 아날로그/디지털 변환기(150)와; 상기 제1펄스 신호에 동기되어 상기 디지털 비디오 신호를 받아들여 상기 LCD 패널을 구동하는 LCD 구동 회로(160); 그리고 상기 PLL(180)로 제공된 전압을 제어함으로써 상기 제1펄스 신호의 상기 제1주파수를 가변시키는 주파수 가변 수단(R1)을 포함하는 것을 특징으로 하는 LCD 모니터 회로.
- 제1항에 있어서, 상기 PLL(180)은, 상기 기준 신호 입력단(P1)으로 입력되는 상기 수평 동기 신호와 상기 비교 신호 입력단(P2)으로 입력되는 제2펄스 신호의 차에 비례하는 전압 레벨의 에러신호를 발생하는 위상 비교기(110)와; 상기 에러 신호에서 교류 성분을 제거하여, 상기 에러 신호의 평균 전압 레벨을 가지는 평균 에러 신호를 발생하는 저역 통과 필터(120); 그리고 상기 평균 에러 신호에 응답하여 상기 제1펄스 신호를 발생하는 전압 제어 발진기(130)를 포함하는 것을 특징으로 하는 LCD 모니터 회로.
- 제2항에 있어서, 상기 주파수 가변 수단(R1)은, 상기 저역 통과 필터(120)로 제공되는 전원전압과 연결된 일단과 상기 저역 통과 필터(120)의 전원 전압 입력단과 연결된 타단을 가지는 가변 저항으로 구성되고, 상기 평균 에러 신호의 전압 레벨은 상기 가변 저항의 저항값에 의해 제어되는 것을 특징으로 하는 LCD 모니터 회로.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019960020736U KR200204617Y1 (ko) | 1996-07-12 | 1996-07-12 | Lcd모니터의 수직화면 제어장치 |
US08/891,988 US5959691A (en) | 1996-07-12 | 1997-07-14 | Digital display apparatus having image size adjustment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019960020736U KR200204617Y1 (ko) | 1996-07-12 | 1996-07-12 | Lcd모니터의 수직화면 제어장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR980009427U KR980009427U (ko) | 1998-04-30 |
KR200204617Y1 true KR200204617Y1 (ko) | 2000-12-01 |
Family
ID=19461401
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2019960020736U Expired - Lifetime KR200204617Y1 (ko) | 1996-07-12 | 1996-07-12 | Lcd모니터의 수직화면 제어장치 |
Country Status (2)
Country | Link |
---|---|
US (1) | US5959691A (ko) |
KR (1) | KR200204617Y1 (ko) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3823420B2 (ja) * | 1996-02-22 | 2006-09-20 | セイコーエプソン株式会社 | ドットクロック信号を調整するための方法及び装置 |
US6389177B1 (en) | 1996-07-02 | 2002-05-14 | Apple Computer, Inc. | System and method using edge processing to remove blocking artifacts from decompressed images |
JPH1124030A (ja) * | 1997-06-30 | 1999-01-29 | Sony Corp | 液晶駆動装置 |
AU8506698A (en) | 1997-07-25 | 1999-02-16 | Apple Computer, Inc. | System and method for generating high-luminance windows on computer display device |
US6313823B1 (en) | 1998-01-20 | 2001-11-06 | Apple Computer, Inc. | System and method for measuring the color output of a computer monitor |
US6154508A (en) * | 1998-03-23 | 2000-11-28 | Vlsi Technology, Inc. | Method and system for rapidly achieving synchronization between digital communications systems |
US6147668A (en) * | 1998-06-20 | 2000-11-14 | Genesis Microchip Corp. | Digital display unit of a computer system having an improved method and apparatus for sampling analog display signals |
US7412654B1 (en) * | 1998-09-24 | 2008-08-12 | Apple, Inc. | Apparatus and method for handling special windows in a display |
TW417080B (en) * | 1998-12-21 | 2001-01-01 | Acer Comm & Multimedia Inc | Display with automatic resolution adjustment |
US6690337B1 (en) * | 1999-06-09 | 2004-02-10 | Panoram Technologies, Inc. | Multi-panel video display |
JP2001195330A (ja) * | 2000-01-11 | 2001-07-19 | Nec Mobile Commun Ltd | ゲートウェイサーバ及びコンテンツ取得方法 |
TW477149B (en) * | 2000-08-01 | 2002-02-21 | Acer Peripherals Inc | Method to resolve the EMI problem of the circuit system in the on-screen display menu |
KR100389026B1 (ko) * | 2001-07-26 | 2003-06-25 | 엘지.필립스 엘시디 주식회사 | 액정표시소자의 백라이트 구동장치 및 방법 |
JP4409152B2 (ja) | 2002-06-27 | 2010-02-03 | 株式会社ルネサステクノロジ | 表示制御駆動装置および表示システム |
KR100583723B1 (ko) * | 2003-09-16 | 2006-05-25 | 삼성전자주식회사 | 복수의 아날로그 신호들을 샘플링하는 장치 |
CN110830035B (zh) * | 2019-11-29 | 2024-04-16 | 湖南国科微电子股份有限公司 | 一种锁相环及其锁定检测方法和电路 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0744641B2 (ja) * | 1983-06-06 | 1995-05-15 | キヤノン株式会社 | 画像変倍処理装置 |
JPS63279293A (ja) * | 1987-05-11 | 1988-11-16 | 三菱電機株式会社 | 画像表示装置 |
JPH02143297A (ja) * | 1988-11-25 | 1990-06-01 | Alps Electric Co Ltd | El表示素子の駆動回路 |
FR2667718B1 (fr) * | 1990-10-09 | 1992-11-27 | France Etat | Circuit de commande des colonnes d'un ecran d'affichage, comprenant des moyens de test a sortie unique. |
US5422678A (en) * | 1991-01-29 | 1995-06-06 | Seiko Epson Corp. | Video processor for enlarging and contracting an image in a vertical direction |
JPH05158464A (ja) * | 1991-12-09 | 1993-06-25 | Toshiba Corp | 解像度変換回路 |
JP2531426B2 (ja) * | 1993-02-01 | 1996-09-04 | 日本電気株式会社 | マルチスキャン型液晶ディスプレイ装置 |
JP3363529B2 (ja) * | 1993-07-22 | 2003-01-08 | 富士通株式会社 | 動画表示装置 |
US5555002A (en) * | 1994-04-29 | 1996-09-10 | Proxima Corporation | Method and display control system for panning |
US5528268A (en) * | 1994-06-28 | 1996-06-18 | Ni; Ray-Ing | Control method and device for a monitor |
JP3093115B2 (ja) * | 1994-09-28 | 2000-10-03 | インターナショナル・ビジネス・マシーンズ・コーポレ−ション | 水平同期信号安定化方法及び装置 |
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1996
- 1996-07-12 KR KR2019960020736U patent/KR200204617Y1/ko not_active Expired - Lifetime
-
1997
- 1997-07-14 US US08/891,988 patent/US5959691A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
KR980009427U (ko) | 1998-04-30 |
US5959691A (en) | 1999-09-28 |
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