EP0193646A2
Expired / Lapsed
EP
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Improvements in video mode plasma panel displays
Assignee: International Business Machines Corp
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Filing: 1985-12-03
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Granted: —
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Expires: 2005-12-03
Abstract
Abstract An AC Plasma Display Panel is operated in a scanning mode using a conventional video data stream such as that applied to a cathode ray tube display terminal. A full line write followed. by a selective erase technique is employed for image generation on a line by line basis. By eliminating the non-selective write signal used in normal plasma display operation, the duration of the sustain signal is substantially decreased and the write, erase and sustain functions are provided at a nominal 40 KHz rate.
Inventors
- 👤 Tony Nic Criscimagna
- 👤 Harry Swartzlander Hoffman, Jr.
- 👤 William Robert Knecht
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 16:35
CPC Classifications
G; G09; G09G; G09G3/00; G09G3/20; G09G3/22; G09G3/28; G09G3/288; G09G3/291; G09G3/293; G09G3/2935
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
132 words
A plasma display operated in video mode, and including a plasma display video monitor having a plurality (25) of display cells arranged in a matrix configuration; means (24) for generating a visual representation of a data stream of video signals during a horizontal line scanning operation by applying a full select write signal to a progressive priming data line whereby all display cells therein are written, and applying a selective write/erase operation to a current proximate horizontal line, characterised in that, in order to decrease the base cycle time of the operation, the sustain pulses are buried, in that a full line select signal is applied to all cells in both of the data lines, eliminating the non-select status, whereby the combined time for write, erase and sustain operations is substantially reduced.
Claim 2
Dependent Claim
132 words
A plasma display operated in video mode, and including a plasma display video monitor having a plurality (25) of display cells arranged in a matrix configuration; means (24) for generating a visual representation of a data stream of video signals during a horizontal line scanning operation by applying a full select write signal to a progressive priming data line whereby all display cells therein are written, and applying a selective write/erase operation to a current proximate horizontal line, characterised in that, in order to decrease the base cycle time of the operation, the sustain pulses are buried, in that a full line select signal is applied to all cells in both of the data lines, eliminating the non-select status, whereby the combined time for write, erase and sustain operations is substantially reduced.
Claim 3
Dependent Claim
22 words
A device as claimed in Claim 1, wherein the proximate full select data line is positioned immediately below the first data line.
Claim 4
Dependent Claim
32 words
A device as claimed in Claim 1, wherein the progressions of the two lines are synchronised whereby the priming line is maintained in the proximate relationship with respect to the data line.
Claim 5
Dependent Claim
19 words
A device as claimed in Claim 1 wherein the write and erase functions require only a single sustain cycle.
Claim 6
Independent Claim
106 words
A method for increasing the operating speed of a plasma display device to permit operation in a line scanning video mode comprising in combination, applying a sustain signal to all cells in the display, applying a full select signal to a first and second data line in the plasma display whereby all cells in the first and second data line are written, and selectively erasing the first data line in accordance with the data stream to be displayed, the combined time for the full select, selective erase and sustain operations being short enough to permit operation of the plasma display device at a video data rate.
Claim 7
Independent Claim
106 words
A method for increasing the operating speed of a plasma display device to permit operation in a line scanning video mode comprising in combination, applying a sustain signal to all cells in the display, applying a full select signal to a first and second data line in the plasma display whereby all cells in the first and second data line are written, and selectively erasing the first data line in accordance with the data stream to be displayed, the combined time for the full select, selective erase and sustain operations being short enough to permit operation of the plasma display device at a video data rate.
Claim 8
Dependent Claim
26 words
A method as claimed in Claim 5 including the step of priming the first data line with the second data line during the selective erase step.
Claim 9
Dependent Claim
30 words
A method as claimed in Claim 7 including the step of synchronising the vertical scan of the first and second data line with the repetition rate of the data stream.
References Cited (Backward Citations)
No citation records indexed.
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