Flat display panel assembly

Details Flat display panel assembly Flat display panel assembly

1991-08-07

1992-12-29

Yusko, Donald J.

Electric lamp and discharge devices

Cathode ray tube

Beam deflecting means

313421, 313458, 313460, H01J 2970

Patent

active

051754673

ABSTRACT:
A flat display panel assembly includes an evacuated glass envelope having a faceplate, a source of electron beams, a control electrode assembly including a stack of electrode substrates each having a predetermined pattern of electrode holes defined therein, and anodes formed by depositing phosphor material on the faceplate in correspondence with the electrode holes in the electrode substrates. At least one of the electrode substrates is made of a material having a coefficient of thermal expansion different from that of the remaining electrode substrates. The electrodes holes in such one of the electrode substrates are so defined and so arranged as to be offset from the corresponding electrode holes in the other electrode substrates by an increasing as a distance increases from a center portion of the electrode assembly towards the perimeter of the electrode assembly. With the electrode holes so defined and so arranged, the electrode substrates are movably supported to accomodate the thermal expansion.

REFERENCES:
patent: 4118651 (1978-10-01), Scott
patent: 5017842 (1991-05-01), Hamada et al.

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