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Browse Prior Art Database

Configuration for a Color Gas Panel

IP.com Disclosure Number: IPCOM000042809D
Original Publication Date: 1984-Jun-01
Included in the Prior Art Database: 2005-Feb-04
Document File: 2 page(s) / 72K

Publishing Venue

IBM

Related People

Detweiler, VW: AUTHOR [+3]

Abstract

A color AC plasma display panel is constructed from two glass plates having conductor arrays thereon, the conductor intersections defining gas cells or sites. The plates are then hermetically sealed around the periphery to form a sealed plasma panel. Referring to the drawings, glass plates 11, 13 are edge sealed by sealant 15. A fill tube (not shown) is provided at one of the plates to evacuate and back-fill the panel with a low pressure gas mixture which has the characteristics of bistable operation and useful ultraviolet generation, such as a Penning mixture of helium-xenon gas. Plate 11 carries two sets of orthogonal metallic lines 17 and 19, which are separated by a dielectric layer 21 and covered by a second dielectric layer 23 overcoated with a layer of magnesium oxide.

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Configuration for a Color Gas Panel

A color AC plasma display panel is constructed from two glass plates having conductor arrays thereon, the conductor intersections defining gas cells or sites. The plates are then hermetically sealed around the periphery to form a sealed plasma panel. Referring to the drawings, glass plates 11, 13 are edge sealed by sealant 15. A fill tube (not shown) is provided at one of the plates to evacuate and back-fill the panel with a low pressure gas mixture which has the characteristics of bistable operation and useful ultraviolet generation, such as a Penning mixture of helium-xenon gas. Plate 11 carries two sets of orthogonal metallic lines 17 and 19, which are separated by a dielectric layer 21 and covered by a second dielectric layer 23 overcoated with a layer of magnesium oxide. The lines terminate at contact pads 25 located on the apron 27 for connection to its driving circuitry. Plate 13 carries an array of ultraviolet excitable phosphor dots 29, separated by etched, formed or applied posts 31 which serve:
(1) to separate the plates when assembled into a panel, keeping the phosphor dots at a safe distance from the plasma; (2) to allow a continuous path for evacuation and back-fill; (3) to serve as a plasma barrier between adjacent cells, reducing plasma spread and cell interaction; and (4) to serve as an ultraviolet barrier between adjacent cells, preventing ultraviolet cross-talk. The phosphor dots, which produce light of a par...