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公开(公告)号：CA1098578A
公开(公告)日：1981-03-31
申请号：CA289351
申请日：1977-10-24
Applicant: RCA CORP
Inventor： GANGE ROBERT A
Abstract: RCA 68,973/68,973A CATHODE STRUCTURE AND METHOD OF OPERATING THE SAME An insulating substrate is provided with a plurality of discrete electrode pads on a surface thereof. A thermionic line cathode, e.g., a directly heated filament, is positioned to one side of the substrate surface and extends across a surface of each one of the electrode pads. An apertured electrode is positioned in spaced relation to the cathode and the electrode pads. The apertured electrode may include a single slit-shaped aperture or a plurality of colinear apertures. The structure may also include a pair of spaced parallel filter plates whose surfaces are disposed in parallel relation to the longitudinal axis of the line cathode and in orthogonal relation to the surfaces of the electrode pads. The filter plates function to collimate the electron flow emitted from the cathode.
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Patent Agency Ranking
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公开(公告)号：CA1149439A
公开(公告)日：1983-07-05
申请号：CA366726
申请日：1980-12-12
Applicant: RCA CORP
Inventor： GANGE ROBERT A
Abstract: RCA 72,160A A flat panel display device is composed of a display section and an electron gun section which provides electron beams for forming a visual display on the display section. A line cathode within the electron gun section serves as the electron source. A plurality of electrode pairs are voltage biased to establish the conditions under which electrons are ejected from the cathode and also to focus electron beams for propagation along the display section.
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