Luminescent screen for flat image display devices

Details Luminescent screen for flat image display devices Luminescent screen for flat image display devices

1979-12-11

1982-04-13

Demeo, Palmer C.

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

313472, 313493, H01J 6135, H01J 2930

Patent

active

043250025

ABSTRACT:
A luminescent screen for flat image display devices, having improved light efficiency comprises a glass screen (1) provided on its inner surface with a pattern of recesses (2) corresponding to a desired luminescent dot pattern with luminescent dot surfaces (5) positioned not only along the bottom of such recesses but also along the upwardly extending recess walls and a contrasting border layer (3) is positioned on the land areas between each recess. In producing such screens, the contrasting border layer is utilized as an etch mask for the recesses and as an application mask for the luminescent material.

REFERENCES:
patent: 2705765 (1955-04-01), Geer
patent: 2882413 (1959-04-01), Vingerhoets
patent: 3582701 (1971-06-01), Zeliotis
patent: 3614503 (1971-10-01), Dietch
patent: 3619698 (1971-11-01), Caras
patent: 3654505 (1972-04-01), Davis et al.
patent: 3755027 (1973-08-01), Gilsing
patent: 3858083 (1974-12-01), Rehkopf
patent: 3906285 (1975-09-01), Kobayakawa
patent: 3956667 (1976-05-01), Veith
patent: 4205255 (1980-05-01), Tomita

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