Fluorescent display device with position selecting and column/ro

Details Fluorescent display device with position selecting and column/ro Fluorescent display device with position selecting and column/ro

1978-10-16

1980-09-16

Demeo, Palmer O.

Electric lamp and discharge devices

With luminescent solid or liquid material

Vacuum-type tube

313268, 313348, H01J 146, H01J 190, H01J 6306

Patent

active

042232449

ABSTRACT:
A fluorescent display device having pattern display sections each composed of phosphor-coated anodes arranged in the form of a matrix, at least a filament for emitting electrons when heated, the anodes being selectively bombarded with electrons emitted from the cathode to produce a visual display, position-selecting grids provided between the filament and the pattern display sections, column-selecting grids or row-selecting grids provided opposite to the columns or rows of the anodes, and a frame member provided, on its surface facing the filament, with the position-selecting grids and on its surface facing the pattern display section with the column-selecting grids or the row-selecting grids, the frame member being made of insulating material at least where necessary. With the provision of the frame member, the device of the present invention can be assembled easily, securely and correctly, and can produce a high-quality display.

REFERENCES:
patent: 2415360 (1947-02-01), McIntosh
patent: 2503806 (1950-04-01), Diggle
patent: 3375391 (1968-03-01), Day
patent: 3435274 (1969-03-01), Miller
patent: 3571655 (1971-03-01), Tanimoto
patent: 3842313 (1974-10-01), Van Daelen et al.

Affiliated with

Also associated with

Rating

Fluorescent display device with position selecting and column/ro does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fluorescent display device with position selecting and column/ro, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fluorescent display device with position selecting and column/ro will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-542658