Display device

Details Display device Display device

1995-12-05

1998-05-19

Patel, Ashok

Electric lamp and discharge devices

With luminescent solid or liquid material

Vacuum-type tube

313112, 313306, H01J 6304, H01J 516

Patent

active

057540012

ABSTRACT:
A display device such as a color phosphor display panel has a panel assembly comprising a faceplate, a pair of spaced side plates, and a backplate 1c which are joined together to provide an evacuated interior space. The display device includes a color filter layer having red, green, and blue filters disposed on the inner surface of the faceplate, the filter layer containing fine particles of inorganic metal compounds. A plurality of phosphor layers of ZnO:Zn are disposed on the color filter layer. A grid is disposed in spaced relation between the phosphor layers and a cathode for controlling a flow of thermions emitted from the cathode toward the phosphor layers. The fine particles of inorganic metal compounds have a particle size ranging from 0.01 .mu.m to 0.02 .mu.m. Preferably, the red filter contains fine particles of Fe.sub.2 O.sub.3, the green filter contains fine particles of TiO.sub.2.ZnO.CoO.NiO, and the blue filter contains fine particles of CoO.Al.sub.2 O.sub.3. The phosphor layers are made of ZnO:Zn.

REFERENCES:
patent: 3114065 (1963-12-01), Kaplan
patent: 3891440 (1975-06-01), Gallaro et al.
patent: 4595862 (1986-06-01), Morimoto et al.
patent: 4661743 (1987-04-01), Matsuoka et al.
patent: 4757234 (1988-07-01), Ikuta et al.
Tsuruoka et al, Two-color Graphic FLVFD with internal color filters, pp. 1-2, Dec. 1992.

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