Browse Prior Art Database

Pressurized Leak Sealant Device for Plasma Display Panels

IP.com Disclosure Number: IPCOM000081843D
Original Publication Date: 1974-Aug-01
Included in the Prior Art Database: 2005-Feb-28
Document File: 2 page(s) / 37K

Publishing Venue

IBM

Related People

Wagner, PR: AUTHOR [+2]

Abstract

In fabricating a gaseous discharge device, two glass substrates having dielectric-coated conductor arrays are sealed about their edges and at the tubulation. One of the problems associated with gas-panel fabrication is that of leakage which generally occurs in areas in and around the frame where the two glass members are sealed. Experience has shown that small air passages may exist or develop within the frame-sealed areas of display panels, allowing air to slowly leak into the panels causing adverse effects in time on the operating characteristics. A pressurized leak sealant for preventing or eliminating such leaks by applying a high vacuum leak sealant under external pressure to the frame-seal area and the glass-metal interface region of the panel with greater assurance of penetration by the sealant operates as follows.

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Pressurized Leak Sealant Device for Plasma Display Panels

In fabricating a gaseous discharge device, two glass substrates having dielectric-coated conductor arrays are sealed about their edges and at the tubulation. One of the problems associated with gas-panel fabrication is that of leakage which generally occurs in areas in and around the frame where the two glass members are sealed. Experience has shown that small air passages may exist or develop within the frame-sealed areas of display panels, allowing air to slowly leak into the panels causing adverse effects in time on the operating characteristics. A pressurized leak sealant for preventing or eliminating such leaks by applying a high vacuum leak sealant under external pressure to the frame-seal area and the glass-metal interface region of the panel with greater assurance of penetration by the sealant operates as follows.

Referring to the drawing, there is shown a gas display panel 1 having a tubulation member 3 which is placed within a leak-sealant fixture 5. The two-part fixture is then bolted to provide a seal at points 6 and 8. A coating of high- vacuum leak sealant is applied to the panel at points 7 and 9 and, while still wet, pressure is applied to the fixture through an inlet 11, pressurizing the vessel 13 and thereby forcing the sealant into minute crevices and passages that may be in the frame-seal or glass-metal interface regions. A series of O-ring seals 15 maintain the panel position within th...