초록 ▼

In accordance with the present invention, a method of manufacturing a luminescent screen assembly on a substrate of a CRT includes the steps of providing a coating of a non-luminescent screen structure material in a predetermined pattern on the substrate and depositing a plurality of color-emitting

In accordance with the present invention, a method of manufacturing a luminescent screen assembly on a substrate of a CRT includes the steps of providing a coating of a non-luminescent screen structure material in a predetermined pattern on the substrate and depositing a plurality of color-emitting screen structure materials on the substrate. The color-emitting screen structure materials are surrounded by the non-luminescent material. An electrostatically-charged dry-powdered resin is deposited onto the aforementioned color-emitting and non-luminescent screen structure materials and fused to form a substantially continuous film.

대표청구항 ▼

In a method of electrophotographically manufacturing a luminescent screen assembly o; a substrate of a color CRT comprising the steps of: a) coating said surface of said substrate with a volatilizable conductive layer; b) overcoating said conductive layer with a volatilizable photoconductive layer i

In a method of electrophotographically manufacturing a luminescent screen assembly o; a substrate of a color CRT comprising the steps of: a) coating said surface of said substrate with a volatilizable conductive layer; b) overcoating said conductive layer with a volatilizable photoconductive layer including a dye sensitive to visible light; c) establishing a substantially uniform electrostatic charge on said photoconductive layer; d) exposing selected areas of said photoconductive layer to visible light to affect the charge thereon; e) developing selected areas of said photoconductive layer with a triboelectrically charged, dry-powdered, first color-emitting phosphor material; and f) sequentially repeating steps c, d and e for triboelectrically charged, dry-powdered, second and third color-emitting phosphor materials to form a luminescent screen comprising picture elements of triads of color-emitting phosphor materials; wherein the improvement comprises the steps of: establishing an electrostatic charge on said photoconductive layer and the overlying phosphor materials; depositing an electrostatically charged dry-powdered resin onto said phosphor materials; and fusing said resin to form a substantially continuous film layer.