Plasma picture screen with blue phospor

Details Plasma picture screen with blue phospor Plasma picture screen with blue phospor

2006-05-30

2006-05-30

Patel, Nimeshkumar D. (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

C313S486000, C313S485000, C313S582000, C252S30140R, C252S30140F

Reexamination Certificate

active

07053543

ABSTRACT:
A plasma picture screen provided with a luminescent layer which comprises a blue Eu2+-activated phosphor and a UV-C light emitting phosphor. The mixing of an UV-C light emitting phosphor with an Eu2+-activated phosphor or coating of an Eu2+-activated phosphor with a UV-C light emitting phosphor or coating of a base layer of an Eu2+-activated phosphor with a covering layer of a UV-C light emitting phosphor clearly reduces the photodegradation of the Eu2+-activated phosphors in the VUV range.

REFERENCES:
patent: 5747100 (1998-05-01), Petersen
patent: 6187225 (2001-02-01), Rao
patent: 09263756 (1997-10-01), None
patent: 9506429 (1995-06-01), None
patent: WO 139239 (2001-05-01), None
Patent Abstracts of Japan, Yamakawa Masahiko: “Phosphor And Color Plasma Display Panel” Publication No. 09263756, Jul 10, 1997, Application No. 08075959, Mar. 29, 1996.

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