Liquid filled electro-optic display cell with diaphragm seal

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Details

350391, G02F 101

Patent

active

045456500

ABSTRACT:
A liquid-filled electro-optic display cell employs an elastomeric diaphragm to seal a filling orifice in the cell side wall. The orifice is surrounded by a rim and the diaphragm is retained over the rim in such a way as to seal the orifice while remaining free to flex over central portions of the orifice. This retention may be effected by means of an annular washer and clamping pin. In this way, sealing is effected and thermal expansion accommodated. The cell is filled by turning it until the orifice is uppermost and filling it until a convex meniscus is formed above the rim to ensure that the diaphragm seals the orifice without introduction of bubbles.

REFERENCES:
patent: 3866313 (1975-02-01), Yih
patent: 4106860 (1978-08-01), Kaufmann
patent: 4135789 (1979-01-01), Hall
patent: 4147416 (1979-04-01), Shimizu

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