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Overlapped Seal Rod Technique for Gas Panel Manufacturing

IP.com Disclosure Number: IPCOM000042929D
Original Publication Date: 1984-Jun-01
Included in the Prior Art Database: 2005-Feb-04
Document File: 1 page(s) / 12K

Publishing Venue

IBM

Related People

Zarcone, RP: AUTHOR

Abstract

In plasma panel fabrication, seal rods for conventional AC plasma panels are placed along the periphery, where the front and back plates meet. The rods are placed in the horizontal axis at the top and bottom, and vertically on each side to form a continuous path along the seal area. The corners where the rods meet are butted up to one another and are held there by virtue of the top piece of glass resting on the entire length of all four rods. This fabrication technique is shown and disclosed in U.S. Patents 3,808,497 and 3,837,724. The tolerance of the seal rods over their length and the allowable rod deviation permit the rods to be less than perfectly flat or uniform.

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Overlapped Seal Rod Technique for Gas Panel Manufacturing

In plasma panel fabrication, seal rods for conventional AC plasma panels are placed along the periphery, where the front and back plates meet. The rods are placed in the horizontal axis at the top and bottom, and vertically on each side to form a continuous path along the seal area. The corners where the rods meet are butted up to one another and are held there by virtue of the top piece of glass resting on the entire length of all four rods. This fabrication technique is shown and disclosed in U.S. Patents 3,808,497 and 3,837,724. The tolerance of the seal rods over their length and the allowable rod deviation permit the rods to be less than perfectly flat or uniform. The glass plates to be sealed also have tolerances, but are more closely held to a flatness and surface consistency which does not readily conform to the irregular seal rods. Thus the glass plates do not rest on the rods at any one particular point, but rather whenever there is a raised area or a change in the thickness of the seal rod. Using a rectangular display configuration having a greater length than depth, the vertical (shorter rods) are placed in position on the lower plate first, followed by the longer horizontal rods being placed with the ends overlapped at the corners at both extreme ends. The overlapping of the longer over the shorter rods allows a lesser angle for the rod to flex. The overlapping corners now give the back or upp...