Picture display device having a flat vacuum tube

Details Picture display device having a flat vacuum tube Picture display device having a flat vacuum tube

1996-12-06

1999-10-12

Liang, Regina

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

313422, 313495, G09G 322

Patent

active

059661097

ABSTRACT:
A picture display device having a flat vacuum envelope which is provided with a transparent face plate with a luminescent screen and with a rear wall, which display device has an electron supply section with an electron source for emitting electron currents in a direction parallel to the face plate, and an active selection electrode section with first, preselection, electrodes and second, fine-selection, electrodes, located closer to the screen, for directing each electron current towards desired pixels on the luminescent screen. The fine-selection electrodes are divided into groups and corresponding fine-selection electrodes of at least two groups are interconnected in a series or parallel arrangement in such a way that the technology of providing these electrodes is as simple as possible and/or the possible fine-selection electrode patterns are such that the number of required selection drivers can be reduced considerably.

REFERENCES:
patent: 4694225 (1987-09-01), Tomii et al.
patent: 5387838 (1995-02-01), Hirakawa et al.

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