FR2838274A1 - Procede et circuit d'ajustement du contraste dans un dispositif d'affichage - Google Patents

Procede et circuit d'ajustement du contraste dans un dispositif d'affichage

Info

Publication number
FR2838274A1
FR2838274A1 FR0303773A FR0303773A FR2838274A1 FR 2838274 A1 FR2838274 A1 FR 2838274A1 FR 0303773 A FR0303773 A FR 0303773A FR 0303773 A FR0303773 A FR 0303773A FR 2838274 A1 FR2838274 A1 FR 2838274A1
Authority
FR
France
Prior art keywords
display device
background region
circuit
adjustment method
contrast adjustment
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.)
Granted
Application number
FR0303773A
Other languages
English (en)
Other versions
FR2838274B1 (fr
Inventor
Jas Sung Kang
Im Soo Kang
Jae Bong Choi
Ji Hyun Lee
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of FR2838274A1 publication Critical patent/FR2838274A1/fr
Application granted granted Critical
Publication of FR2838274B1 publication Critical patent/FR2838274B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/02—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
    • 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
    • G09G1/28—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 colour tubes
    • G09G1/285—Interfacing with colour displays, e.g. TV receiver
    • 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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
    • H04N21/4318—Generation of visual interfaces for content selection or interaction; Content or additional data rendering by altering the content in the rendering process, e.g. blanking, blurring or masking an image region
    • 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
    • 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
    • G09G2320/066—Adjustment of display parameters for control of contrast
    • 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
    • G09G2320/0686—Adjustment of display parameters with two or more screen areas displaying information with different brightness or colours
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00—Aspects of display data processing
    • G09G2340/12—Overlay of images, i.e. displayed pixel being the result of switching between the corresponding input pixels
    • G09G2340/125—Overlay of images, i.e. displayed pixel being the result of switching between the corresponding input pixels wherein one of the images is motion video
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2370/00—Aspects of data communication
    • G09G2370/04—Exchange of auxiliary data, i.e. other than image data, between monitor and graphics controller
    • G09G2370/045—Exchange of auxiliary data, i.e. other than image data, between monitor and graphics controller using multiple communication channels, e.g. parallel and serial
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/57—Control of contrast or brightness

Abstract

Un procédé d'ajustement du contraste d'une région d'arrière-plan dans un dispositif d'affichage (7, 20, 23) est proposé. Un signal vidéo destiné à une région d'arrière-plan est reçu dans un mode de région d'arrière-plan. Le gain du signal vidéo est ajusté en réponse au signal de commande de région d'arrière-plan (IBLK2) afin d'ajuster ainsi le contraste de la région d'arrière-plan. Le résultat est un dispositif d'affichage de qualité élevée.
FR0303773A 2002-04-09 2003-03-27 Procede et circuit d'ajustement du contraste dans un dispositif d'affichage Expired - Fee Related FR2838274B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR10-2002-0019193A KR100434500B1 (ko) 2002-04-09 2002-04-09 배경영역의 컨트라스트 제어방법 및 제어회로

Publications (2)

Publication Number Publication Date
FR2838274A1 true FR2838274A1 (fr) 2003-10-10
FR2838274B1 FR2838274B1 (fr) 2005-09-16

Family

ID=28450129

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0303773A Expired - Fee Related FR2838274B1 (fr) 2002-04-09 2003-03-27 Procede et circuit d'ajustement du contraste dans un dispositif d'affichage

Country Status (7)

Country Link
US (1) US7158153B2 (fr)
JP (1) JP2004046086A (fr)
KR (1) KR100434500B1 (fr)
CN (1) CN100346287C (fr)
FR (1) FR2838274B1 (fr)
NL (1) NL1022979C2 (fr)
TW (1) TW595222B (fr)

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US8035653B2 (en) * 2006-10-27 2011-10-11 Hewlett-Packard Development Company, L.P. Dynamically adjustable elements of an on-screen display
KR20080067516A (ko) * 2007-01-16 2008-07-21 삼성전자주식회사 디스플레이장치 및 그 영상조정방법
US8890877B2 (en) * 2008-02-28 2014-11-18 Standard Microsystems Corporation Updating firmware in a display device using a serial bus
WO2009125342A1 (fr) * 2008-04-07 2009-10-15 Nxp B.V. Dispositif électronique et procédé d'amélioration de la qualité d'image de données vidéo composites comportant au moins une fenêtre
TWI404041B (zh) * 2008-12-01 2013-08-01 Mstar Semiconductor Inc 自動調整螢幕上顯示資訊的裝置與方法
JP2011048040A (ja) * 2009-08-26 2011-03-10 Sony Corp 映像信号処理装置、映像信号処理方法およびプログラム
CN102129689B (zh) * 2011-02-24 2012-11-14 南京大学 自动增益场景下基于相机响应函数的背景建模方法
WO2014155618A1 (fr) * 2013-03-28 2014-10-02 Ｎｅｃディスプレイソリューションズ株式会社 Dispositif d'amélioration de qualité d'image, dispositif d'affichage d'image et procédé d'amélioration de qualité d'image
CN105872509A (zh) * 2015-11-23 2016-08-17 乐视致新电子科技（天津）有限公司 一种图像对比度调节方法及装置
US10901248B1 (en) 2019-10-16 2021-01-26 Himax Technologies Limited Voltage amplifier circuit and associated amplifying method for flexible waveform adjustment
TWI708238B (zh) * 2019-11-18 2020-10-21 奇景光電股份有限公司 電壓放大電路以及相關的電壓方法
TW202326448A (zh) * 2021-12-16 2023-07-01 瑞昱半導體股份有限公司 顯示器控制系統及顯示器

Citations (2)

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US5729248A (en) * 1993-09-25 1998-03-17 Samsung Electronics Co., Ltd. Character information processing circuit and method therefor
EP0856829A2 (fr) * 1997-01-31 1998-08-05 Hitachi, Ltd. Dispositif d'affichage avec commande des attributs d'affichage

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US5576723A (en) * 1987-09-11 1996-11-19 Cybex Computer Products Corporation VGA signal converter for converting VGA color signals to VGA monochrome signals
US5075766A (en) * 1990-04-30 1991-12-24 Sendelweck Gene K Television on-screen character display system with provisions for edging characters
JPH0414965A (ja) 1990-05-08 1992-01-20 Sharp Corp スーパーインポーズ装置
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Patent Citations (2)

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Publication number Priority date Publication date Assignee Title
US5729248A (en) * 1993-09-25 1998-03-17 Samsung Electronics Co., Ltd. Character information processing circuit and method therefor
EP0856829A2 (fr) * 1997-01-31 1998-08-05 Hitachi, Ltd. Dispositif d'affichage avec commande des attributs d'affichage

Non-Patent Citations (1)

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PATENT ABSTRACTS OF JAPAN vol. 0161, no. 70 (E - 1194) 23 April 1992 (1992-04-23) *

Also Published As

Publication number Publication date
FR2838274B1 (fr) 2005-09-16
TW200305334A (en) 2003-10-16
NL1022979C2 (nl) 2005-02-15
JP2004046086A (ja) 2004-02-12
NL1022979A1 (nl) 2003-10-13
CN1450444A (zh) 2003-10-22
KR20030080522A (ko) 2003-10-17
US20030189560A1 (en) 2003-10-09
US7158153B2 (en) 2007-01-02
CN100346287C (zh) 2007-10-31
TW595222B (en) 2004-06-21
KR100434500B1 (ko) 2004-06-05

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Effective date: 20151130