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Browse Prior Art Database

Dual Seal for Electrochromic Display

IP.com Disclosure Number: IPCOM000048075D
Original Publication Date: 1981-Dec-01
Included in the Prior Art Database: 2005-Feb-08
Document File: 2 page(s) / 36K

Publishing Venue

IBM

Related People

Kirkman, DH: AUTHOR [+3]

Abstract

The walls of an electrochromic display cell are adhesively bonded to a substrate at their outer edges. To prevent contamination of the electrochromic solution by the adhesive, an inner elastomeric ring seal or gasket is also employed.

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Dual Seal for Electrochromic Display

The walls of an electrochromic display cell are adhesively bonded to a substrate at their outer edges. To prevent contamination of the electrochromic solution by the adhesive, an inner elastomeric ring seal or gasket is also employed.

Thus, as shown an the drawing, a wall 10 of the display cell confines the electrochromic solution 11 over a substrate 12 on which an array of display electrodes (not shown) is formed. The wall is cut away at its outer edge to form a groove 13 which is filled with a structural adhesive 14, e.g., epoxy resin.

Vapors or uncured adhesive could contaminate the electrochromic solution if in contact with it. To prevent this the underside of the wall is formed with a slot in which an elastomeric gasket 15 is placed. This acts as a ring seal right around the cell wall and prevents contact of adhesive and solution. The gasket 15 must project beyond the wall lower surface when first fitted and the cell wall must be clamped down to compress the gasket while the adhesive cures.

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