WO1999039500A3 - Method and appratus for minimizing false image artifacts in a digitally controlled display monitor - Google Patents

Method and appratus for minimizing false image artifacts in a digitally controlled display monitor Download PDF

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Publication number
WO1999039500A3
WO1999039500A3 PCT/US1999/001521 US9901521W WO9939500A3 WO 1999039500 A3 WO1999039500 A3 WO 1999039500A3 US 9901521 W US9901521 W US 9901521W WO 9939500 A3 WO9939500 A3 WO 9939500A3
Authority
WO
WIPO (PCT)
Prior art keywords
grayscale
time
grid
appratus
display monitor
Prior art date
Application number
PCT/US1999/001521
Other languages
French (fr)
Other versions
WO1999039500A2 (en
Inventor
Edward C Anderson
David E Olm
Jerry D Schermerhorn
Original Assignee
Electro Plasma 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
Application filed by Electro Plasma Inc filed Critical Electro Plasma Inc
Priority to EP99903356A priority Critical patent/EP0974224A1/en
Priority to JP11539383A priority patent/JP2000514210A/en
Publication of WO1999039500A2 publication Critical patent/WO1999039500A2/en
Publication of WO1999039500A3 publication Critical patent/WO1999039500A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
    • 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
    • G09G3/22—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 using controlled light sources
    • G09G3/28—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 using controlled light sources using luminous gas-discharge panels, e.g. plasma panels
    • G09G3/288—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 using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels
    • G09G3/296—Driving circuits for producing the waveforms applied to the driving electrodes
    • G09G3/2965—Driving circuits for producing the waveforms applied to the driving electrodes using inductors for energy 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
    • G09G3/2007—Display of intermediate tones
    • G09G3/2018—Display of intermediate tones by time modulation using two or more time intervals
    • 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
    • G09G3/22—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 using controlled light sources
    • G09G3/28—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 using controlled light sources using luminous gas-discharge panels, e.g. plasma panels
    • G09G3/288—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 using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels
    • G09G3/291—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 using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes
    • G09G3/293—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 using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes for address discharge
    • G09G3/2935—Addressed by erasing selected cells that are in an ON state

Abstract

The invention is directed to improve visual effects on digital display devices (Fig. 7) that use time and space modulation methods to display grayscale values, by using a distributed line technique to provide grayscale capability. The grayscale display is illuminated by energizing pixels of a weighted grid of eight line addresses. There are N grid sets where N is the number of time slots allocated per frame time. The visual grayscale brightness of each pixel is determined by the selection of the grid sets and the time slot allocated for the grid sets. The bit value selection, grid set allocation, and time slots are chosen such that the grayscale values are scattered in time and space so that the perception of visual disturbances and other perceived artifacts are avoided.
PCT/US1999/001521 1998-01-30 1999-01-26 Method and appratus for minimizing false image artifacts in a digitally controlled display monitor WO1999039500A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP99903356A EP0974224A1 (en) 1998-01-30 1999-01-26 Method and appratus for minimizing false image artifacts in a digitally controlled display monitor
JP11539383A JP2000514210A (en) 1998-01-30 1999-01-26 Method and apparatus for minimizing artifacts in digitally controlled display monitors

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/016,655 US6151001A (en) 1998-01-30 1998-01-30 Method and apparatus for minimizing false image artifacts in a digitally controlled display monitor
US09/016,655 1998-01-30

Publications (2)

Publication Number Publication Date
WO1999039500A2 WO1999039500A2 (en) 1999-08-05
WO1999039500A3 true WO1999039500A3 (en) 1999-12-09

Family

ID=21778262

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/001521 WO1999039500A2 (en) 1998-01-30 1999-01-26 Method and appratus for minimizing false image artifacts in a digitally controlled display monitor

Country Status (6)

Country Link
US (1) US6151001A (en)
EP (1) EP0974224A1 (en)
JP (1) JP2000514210A (en)
KR (1) KR100319363B1 (en)
CN (1) CN1157707C (en)
WO (1) WO1999039500A2 (en)

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Also Published As

Publication number Publication date
KR100319363B1 (en) 2002-01-05
CN1157707C (en) 2004-07-14
EP0974224A1 (en) 2000-01-26
WO1999039500A2 (en) 1999-08-05
CN1310837A (en) 2001-08-29
KR20010005891A (en) 2001-01-15
US6151001A (en) 2000-11-21
JP2000514210A (en) 2000-10-24

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