Image display apparatus having sheet like vertical and horizonta

Details Image display apparatus having sheet like vertical and horizonta Image display apparatus having sheet like vertical and horizonta

1988-11-16

1990-09-11

Wieder, Kenneth

Electric lamp and discharge devices

With luminescent solid or liquid material

Vacuum-type tube

313422, 313426, H01J 1928, H01J 2974

Patent

active

049556819

ABSTRACT:
In an image display apparatus, horizontal-extended line cathodes (22a-22d), an electron beam extraction electrode (23), a control electrode (24), a first focusing electrode (25) having horizontal-elongated apertures (35, 45), a second focusing electrode (26) having vertical-elongated apertures (36, 46), a horizontal deflection electrode (27a, 27b), a vertical deflection electrode (28a, 28b) and a screen (29) are provided in this order toward a travelling direction of electron beam, and each of both deflection electrodes comprises a pair of comb-shaped conductive sheets which are insulatedly interdigitated with each other on the same vertical plane.

REFERENCES:
patent: 4227117 (1980-10-01), Watanabe et al.
patent: 4449148 (1984-05-01), Inohara et al.
patent: 4451846 (1984-05-01), Iyehara et al.

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