Cathode structure and electron gun for cathode ray tube using th

Details Cathode structure and electron gun for cathode ray tube using th Cathode structure and electron gun for cathode ray tube using th

1997-07-08

1999-04-27

Patel, Vip

Electric lamp and discharge devices

Cathode ray tube

Ray generating or control

313270, 313346R, H01J 114

Patent

active

058982620

ABSTRACT:
In an electron gun for a color cathode ray tube including a cathode structure having three electrodes, a control electrode and a screen electrode, and a plurality of focus electrodes and last accelerating electrodes for forming electron lenses, the cathode structure includes a rimmed electrode member, an insulating member inserted into the electrode member and having an indentation formed on the upper surface thereof, a field emission array cell having a base member which is inserted into the indentation, and a plurality of supporting members installed at the insulating member for pressing down on the upper surface of the edge of the field emission array cell which is inserted into the indentation toward the upper surface of the insulating member. Thus, the strength of attachment between the insulating member and a field emission device is improved.

REFERENCES:
patent: 4965486 (1990-10-01), Kolpin

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