Method of manufacturing a color filter cathode ray tube (CRT)

Details Method of manufacturing a color filter cathode ray tube (CRT) Method of manufacturing a color filter cathode ray tube (CRT)

2006-04-25

2006-04-25

McPherson, John A. (Department: 1756)

Radiation imagery chemistry: process, composition, or product th

Producing cathode-ray tube or element thereof

With filter material on finished faceplate

C427S068000, C313S466000

Reexamination Certificate

active

07033712

ABSTRACT:
A color filter luminescent screen assembly for a cathode ray tube (CRT) is disclosed. The luminescent screen assembly is formed on an interior surface of a faceplate panel of the CRT tube. The luminescent screen assembly includes a patterned light-absorbing matrix that defines a plurality of sets of fields corresponding to one of a blue region, a red region and a green region. A color filter is formed in one of the plurality of sets of fields. The color filter may be, for example, a blue pigment layer, a red pigment layer or a green pigment layer. After the pigment layer is formed, a cap layer is formed thereon. The cap layer is formed from an aqueous solution of a photosensitive material and a polymer. Thereafter, a phosphor layer is deposited on the cap layer.

REFERENCES:
patent: 5476737 (1995-12-01), Kusunoki et al.
patent: 6300022 (2001-10-01), Kim et al.
patent: 1 487 736 (1966-12-01), None
patent: 1113203 (1965-07-01), None
patent: 10-308184 (1998-11-01), None
patent: WO 98/54742 (1998-12-01), None

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