Electron source for a display device
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsSatoshi Kitao, Kinzo Nonomura, Jumpei Hashiguchi, Ryuichi Murai
Life of this patent
Estimating the term…
Abstract
An electron source includes: linear thermionic cathodes for emitting electron beams; an electron beam lead-out electrode which is disposed substantially in a parallel relationship with the linear thermionic cathodes and is formed with apertures for passing the electron beams therethrough; and a plurality of support members for supporting the linear thermionic cathodes each of which has a contact portion held in contact with at least a portion of the linear thermionic cathodes; wherein each of the apertures of the elctron beam lead-out electrodes is disposed so as to confront the contact portion of the support member.
Claims7
A thermionic electron source for a display device comprising:
- a plurality of linear thermionic cathodes for emitting electron beams;
- an electron beam take-out electrode which is disposed substantially in a parallel relationship with said linear thermionic cathodes;
- and
- a plurality of support means disposed in an X-Y matrix configuration with respect to said cathodes for supporting said linear thermionic cathodes, each of said support means having a contact portion held in contact with at least a respective portion of one of said linear thermionic cathodes;
- wherein said electron beam take-out electrode is formed with apertures for passing the electron beams therethrough such that each of the apertures confronts a respective one of said contact portions of said support means;
- and
- wherein a plurality of control electrodes for controlling the electron beams emitted from said linear thermionic cathodes are formed integrally with said support means.
A thermionic electron source of a display device comprising:
- a plurality of linear thermionic cathodes for emitting electron beams;
- an electron beam take-out electrode which is disposed substantially in a parallel relationship with said linear thermionic cathodes and is formed with apertures for passing the electron beams therethrough;
- a plurality of control electrodes, which are disposed adjacent to said linear thermionic cathodes, for controlling the electron beams emitted from said linear thermionic cathodes;
- and
- a plurality of support means disposed in an X-Y matrix configuration with respect to said cathodes for supporting said linear thermionic cathodes, each of said support means having a contact portion held in contact with at least a respective portion of one of said linear thermionic cathodes;
- wherein each of the apertures of the electron beam take-out electrode is disposed so as to confront a respective one of said contact portions of said support means;
- wherein said support means includes a metallic substrate and a heat resistance insulating member provided on said metallic substrate such that said metallic substrate is electrically insulated from said thermionic cathodes by means of said heat resistant insulating member.
A thermionic electron source of a display device comprising:
- a plurality of linear thermionic cathodes for emitting electron beams;
- an electron beam take-out electrode which is disposed substantially in a parallel relationship with said linear thermionic cathodes and is formed with apertures for passing the electron beams therethrough;
- a plurality of control electrodes, which are disposed adjacent to said linear thermionic cathodes, for controlling the electron beams emitted from said linear thermionic cathodes;
- and
- a plurality of support means disposed in an X-Y matrix configuration with respect to said cathodes for supporting said linear thermionic cathodes, each of said support means having a contact portion held in contact with at least a respective portion of one of said linear thermionic cathodes;
- wherein each of the apertures of the electron beam take-out electrode is disposed so as to confront a respective one of said contact portions of said support means;
- and
- wherein said control electrodes are formed integrally with said support means.
Dependencies are inferred from the claim text.