Method of forming images on a flat video screen

Details Method of forming images on a flat video screen Method of forming images on a flat video screen

1985-03-08

1988-08-09

Chin, Tommy P.

Facsimile and static presentation processing

Static presentation processing

Attribute control

340752, 340775, 340766, 313309, 358230, H04N 912

Patent

active

047631872

ABSTRACT:
A device and method for formation of images with flat video screens by a line- and column-addressed point matrix. Field point matrix uses field emission micro tips as fluorescent screen portions being connected in columns. An electric field is applied between each tip and the fluorescent screen portion corresponding thereto, such that the respective tip emits electrons and a light spot is formed on the video screen, the intensity of which depends upon the applied voltage for attracting electrons. Emission from other tips is blocked by applying a negative voltage to the other columns. Thus, by successive switchings, successive luminous spots are formed on the video screen as desired.

REFERENCES:
patent: 3935499 (1976-01-01), Oess
patent: 3935500 (1976-01-01), Oess et al.
patent: 4020381 (1977-04-01), Oess et al.
patent: 4170772 (1979-10-01), Bly
patent: 4486749 (1984-12-01), Kishino et al.

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