Browse Prior Art Database

Multiple Copy Screen Facility on a Large Capacity Display

IP.com Disclosure Number: IPCOM000060185D
Original Publication Date: 1986-Mar-01
Included in the Prior Art Database: 2005-Mar-08
Document File: 2 page(s) / 54K

Publishing Venue

IBM

Related People

Foster, R: AUTHOR

Abstract

The AC plasma display technology is a memory technology. Because of this characteristic of the technology, the maximum size, or maximum information content of the screen, is not limited by the device's luminance-voltage characteristic as is the case for refresh display devices, but is limited only by manufacturability considerations. This article describes the use of these capabilities to provide copies of displayed data. The plasma gas panel is an all-points-addressable device in which the display cells, located between the orthogonal conductor arrays, are individually and selectively addressable. An example of this technology is disclosed in U.S. Patent 4,200,868. Fig. 1 shows a plasma gas panel display 10 housed in a cabinet 12.

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Multiple Copy Screen Facility on a Large Capacity Display

The AC plasma display technology is a memory technology. Because of this characteristic of the technology, the maximum size, or maximum information content of the screen, is not limited by the device's luminance-voltage characteristic as is the case for refresh display devices, but is limited only by manufacturability considerations. This article describes the use of these capabilities to provide copies of displayed data. The plasma gas panel is an all- points-addressable device in which the display cells, located between the orthogonal conductor arrays, are individually and selectively addressable. An example of this technology is disclosed in U.S. Patent 4,200,868. Fig. 1 shows a plasma gas panel display 10 housed in a cabinet 12. A separate keyboard 14 is provided and is typically connected to the display electronics in the cabinet 12 by a cable 16. The most common display applications today are written for 1920 (24x80) character displays typical of CRT displays. A high-capacity AC plasma display is capable of displaying 9920 characters. To obtain immediate benefits from a high-capacity display of this type, existing applications must be capable of being adapted to the display. One feature which has been developed to achieve this objective is the display multiple copy screen feature. By using a character cell size of 6 x 12 pels, it is possible to accommodate 1920 characters in one quadrant of the plasma panel, in the standard format of 24 rows of 80 characters. This provides the possibility of displaying as many as four 1920 character "screens" of information simultaneously. In the multiple copy screen feature, the user can make copies of one area or "screen" of the display in another. The display is divided into four quadrants 20, 22, 24, 26 with the top left quadrant 20, for example, being designated as the "active area"....