Method of using invisible spacers for electro-optical display de

Details Method of using invisible spacers for electro-optical display de Method of using invisible spacers for electro-optical display de

1974-12-23

1976-12-21

DiPalma, Victor A.

Electric lamp and discharge devices

With temperature modifier

For lead-in-seal or stem protection

29 2513, 313220, 316 4, H01J 940

Patent

active

039985105

ABSTRACT:
Stainless steel discs with a Brinell hardness of about 150 to 240 provide excellent invisible spacers for maintaining proper gas chamber gaps in electro-optical display devices. These spacers approximately about 8 to 20 mils in diameter and about 3 to 7 mils thick improve spacing uniformity in the viewing area and minimize firing site or cell wipe-out.

REFERENCES:
patent: 3041127 (1962-06-01), Turnbull
patent: 3499167 (1970-03-01), Baker et al.
patent: 3602756 (1971-08-01), Bonnet
patent: 3778126 (1973-12-01), Wilson
patent: 3858284 (1975-01-01), Costa et al.
patent: 3879629 (1975-04-01), Durand
Beckman et al., "Gas Panel Sealant" , IBM Tech. Discl. Bull., vol. 15, No. 8, Jan. 1973, pp. 2518-2519.

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