WO1998023094A3 - Adapter circuit for a flat panel display monitor - Google Patents

Adapter circuit for a flat panel display monitor Download PDF

Info

Publication number
WO1998023094A3
WO1998023094A3 PCT/US1997/020667 US9720667W WO9823094A3 WO 1998023094 A3 WO1998023094 A3 WO 1998023094A3 US 9720667 W US9720667 W US 9720667W WO 9823094 A3 WO9823094 A3 WO 9823094A3
Authority
WO
WIPO (PCT)
Prior art keywords
video
display monitor
flat panel
panel display
signals
Prior art date
Application number
PCT/US1997/020667
Other languages
French (fr)
Other versions
WO1998023094A2 (en
Inventor
Chandra S Reddy
Ram Reddy
Rlango Rajashekaran
Original Assignee
Sage Inc
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
Priority claimed from US08/948,827 external-priority patent/US6078361A/en
Priority claimed from US08/948,684 external-priority patent/US6195079B1/en
Priority claimed from US08/948,787 external-priority patent/US5953074A/en
Application filed by Sage Inc filed Critical Sage Inc
Priority to AU54358/98A priority Critical patent/AU5435898A/en
Publication of WO1998023094A2 publication Critical patent/WO1998023094A2/en
Publication of WO1998023094A3 publication Critical patent/WO1998023094A3/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/147—Digital output to display device ; Cooperation and interconnection of the display device with other functional units using display panels
    • G06F3/1475—Digital output to display device ; Cooperation and interconnection of the display device with other functional units using display panels with conversion of CRT control signals to flat panel control signals, e.g. adapting the palette memory
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G09G2330/021—Power management, e.g. power saving
    • 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
    • G09G3/2007—Display of intermediate tones
    • G09G3/2018—Display of intermediate tones by time modulation using two or more time intervals
    • G09G3/2022—Display of intermediate tones by time modulation using two or more time intervals using sub-frames
    • 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
    • G09G3/2007—Display of intermediate tones
    • G09G3/2044—Display of intermediate tones using dithering
    • G09G3/2051—Display of intermediate tones using dithering with use of a spatial dither pattern

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

A video adapter circuit for adapting analog video signals provided by a personal computer system designed to drive a CRT display monitor into signals appropriate for driving a flat panel display monitor. The video adapter circuit accepts analog video and synchronizing signals in any one of several scanning formats commonly utilized in personal computer systems and automatically detects the scanning format of the signals. An oscillator generates a clock signal that is synchronized with the HSYNC signal generated by the personal computer system. Each of the analog RGB video signals are amplified by a video amplifier and sampled, according to the clock signal, by a digital-to-analog converter. A controller circuit compresses the sampled video signals and stores the compressed data in a dual-port video frame memory at a rate determined by the scanning format. The compressed data is retrieved and decompressed from the video frame memory at a rate determined by the requirements of the flat panel display monitor and converted into a format appropriate for driving the flat panel display monitor. If the received video signals have a resolution that is lower than the resolution provided by the flat panel display monitor, the video adapter circuit automatically expands the image to fill the entire image area of the flat panel display monitor. An on-screen menu provides a user interface for the video adapter circuit, including an ability to adjust the brightness and contrast ratio of the image displayed on the flat panel display monitor by adjusting the dc level and the gain of the video amplifier. In addition, the horizontal and vertical position of the displayed image can be adjusted.
PCT/US1997/020667 1996-11-18 1997-11-17 Adapter circuit for a flat panel display monitor WO1998023094A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU54358/98A AU5435898A (en) 1996-11-18 1997-11-17 Adapter circuit for a flat panel display monitor

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US3113396P 1996-11-18 1996-11-18
US60/031,133 1996-11-18
US08/948,827 US6078361A (en) 1996-11-18 1997-10-10 Video adapter circuit for conversion of an analog video signal to a digital display image
US08/948,827 1997-10-10
US08/948,684 1997-10-10
US08/948,684 US6195079B1 (en) 1996-11-18 1997-10-10 On-screen user interface for a video adapter circuit
US08/948,787 US5953074A (en) 1996-11-18 1997-10-10 Video adapter circuit for detection of analog video scanning formats
US08/948,787 1997-10-10

Publications (2)

Publication Number Publication Date
WO1998023094A2 WO1998023094A2 (en) 1998-05-28
WO1998023094A3 true WO1998023094A3 (en) 1998-10-08

Family

ID=27487869

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1997/020667 WO1998023094A2 (en) 1996-11-18 1997-11-17 Adapter circuit for a flat panel display monitor

Country Status (2)

Country Link
AU (1) AU5435898A (en)
WO (1) WO1998023094A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100258531B1 (en) * 1998-01-24 2000-06-15 윤종용 Auto control apparatus for the image on flat panel display and method thereof
TW417080B (en) * 1998-12-21 2001-01-01 Acer Comm & Multimedia Inc Display with automatic resolution adjustment
KR100323666B1 (en) * 1999-08-12 2002-02-07 구자홍 Method and apparatus for compensating clock phase of monitor
GB2358075B (en) * 1999-10-15 2002-03-27 Samsung Electronics Co Ltd Horizontal position control circuit for high-resolution lcd monitors
KR100367599B1 (en) * 2000-08-16 2003-01-10 엘지전자 주식회사 White balance control apparatus and method for setup box
KR100418703B1 (en) 2001-08-29 2004-02-11 삼성전자주식회사 display apparatus and controlling method thereof
US7820638B2 (en) 2002-08-09 2010-10-26 Arthrex, Inc. Method of applying hyaluronic acid to implant or graft to enhance lubricity and cellular density
TWI413053B (en) * 2009-10-09 2013-10-21 Innolux Corp Flat display and driving method thereof
CN114530127B (en) * 2022-02-23 2023-08-01 陈冠波 Backlight control method, backlight controller and computer readable storage medium

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0364307A2 (en) * 1988-10-14 1990-04-18 Compaq Computer Corporation Method and apparatus for displaying different shades of gray on a liquid crystal display
EP0456165A2 (en) * 1990-05-07 1991-11-13 Kabushiki Kaisha Toshiba Color LCD display control system
EP0519744A2 (en) * 1991-06-21 1992-12-23 Canon Kabushiki Kaisha Display control apparatus and display device
WO1993015497A1 (en) * 1992-01-30 1993-08-05 Icl Personal Systems Oy Analog video interface for a digital video display
EP0622775A1 (en) * 1993-04-28 1994-11-02 Canon Kabushiki Kaisha Apparatus and method for clock generation for a display apparatus
US5493317A (en) * 1992-05-12 1996-02-20 Samsung Electronics Co., Ltd. On-screen display device for a multimode monitor and method thereof
US5550556A (en) * 1993-11-01 1996-08-27 Multivideo Labs, Inc. Transmitting data and commands to display monitors
US5550566A (en) * 1993-07-15 1996-08-27 Media Vision, Inc. Video capture expansion card

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0364307A2 (en) * 1988-10-14 1990-04-18 Compaq Computer Corporation Method and apparatus for displaying different shades of gray on a liquid crystal display
EP0456165A2 (en) * 1990-05-07 1991-11-13 Kabushiki Kaisha Toshiba Color LCD display control system
EP0519744A2 (en) * 1991-06-21 1992-12-23 Canon Kabushiki Kaisha Display control apparatus and display device
WO1993015497A1 (en) * 1992-01-30 1993-08-05 Icl Personal Systems Oy Analog video interface for a digital video display
US5493317A (en) * 1992-05-12 1996-02-20 Samsung Electronics Co., Ltd. On-screen display device for a multimode monitor and method thereof
EP0622775A1 (en) * 1993-04-28 1994-11-02 Canon Kabushiki Kaisha Apparatus and method for clock generation for a display apparatus
US5550566A (en) * 1993-07-15 1996-08-27 Media Vision, Inc. Video capture expansion card
US5550556A (en) * 1993-11-01 1996-08-27 Multivideo Labs, Inc. Transmitting data and commands to display monitors

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
"EXTENDED DISPLAY IDENTIFICATION DATA PROGRAMMING OF MICROPROCESSOR -BASED DISPLAY DATA CHANNEL DESIGN", IBM TECHNICAL DISCLOSURE BULLETIN, vol. 38, no. 3, March 1995 (1995-03-01), XP000508016 *
HODGE D J ET AL: "AN 11.8-IN FLAT PANEL DISPLAY MINITOR", HEWLETT-PACKARD JOURNAL, vol. 46, no. 4, 1 August 1995 (1995-08-01), pages 51 - 60, XP000525587 *
KASAI N ET AL: "26.4L: LATE-NEWS PAPER: DEVELOPMENT OF 13.3-IN. SUPER TFT-LCD MONITOR", 12 May 1996, SID INTERNATIONAL SYMPOSIUM. DIGEST OF TECHNICAL PAPERS, SAN DIEGO, MAY 12 - 17, 1996, NR. VOL. 27, PAGE(S) 414 - 417, SOCIETY FOR INFORMATION DISPLAY, XP000621050 *
VELAMURI S R ET AL: "DESIGNING THE OPTIMAL FLAT PANEL VGA SUBSYSTEM FOR THE PORTABLE PC", 17 November 1992, WESCON TECHNICAL PAPERS, VOL. 36, PAGE(S) 519 - 524, XP000350116 *

Also Published As

Publication number Publication date
WO1998023094A2 (en) 1998-05-28
AU5435898A (en) 1998-06-10

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