Abstract: There is disclosed a display apparatus including a rear electrode unit, electron beam generating sources, a front electrode unit including a plurality of electron beam control electrodes laminated together with insulating spacers therebetween, and a face plate formed with a fluorescent screen. The front electrode is coupled together by first metallic coupling pins fixed on the electron beam control electrode arranged to confront the fluorescent screen. The rear electrode unit is coupled with the electrode unit by second metallic coupling pins fixed to one of the electron beam control electrodes other than the electron beam control electrode confronting the fluorescent screen.

Abstract: An electrode structure comprising a plurality of beam control electrodes, a plurality of electrically insulating spacers disposed between each neighboring members of the beam control electrodes, an electrode substrate, a plurality of metallic pins planted on the beam control electrode so as to extend therefrom through the electrode substrate, and a fixing member mounted on each of the metallic pins from rear of the electrode substrate for retaining the beam control electrodes.

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.

Abstract: A thermal head for use in a printer or a facsimile machine and a method for manufacturing the same are disclosed. The thermal head having a heat regenerative layer, heating elements and electrodes respectively formed on the substrate thereof and in which they are covered with a protection layer is manufactured by forming a coating made of a thermosetting resin on the protection layer. Thus, pin holes formed in the protection layer due to the roughness of the surface of the substrate can be sealed up so that the reliability of the thermal head is improved.

Abstract: In a flat-shaped display apparatus has a face plate, a rear plate, side plates, and necessary electrodes therein, a supporting plate and plural supporting rods which are connected to an edge of the supporting plate at intervals of a certain distance are provided between the face plate and the rear plate. The supporting rods are made of metal and all bonded parts are covered by guide plates so that no adhesive is exposed to the electron beams. Therefore, over-scanning of the electron beams can be made, without the electron beams impinging on the adhesive thereby enabling effective distortion compensation.

Abstract: In an electron beam generation apparatus for a flat cathode ray tube, line cathodes are stretched in an arc shaped form and held by plural cathode position defining members. The cathode position defining members are disposed along the line cathode in a forward convex arc which protrudes most at its center and less towards its respective ends. An electron beam take-out electrode is placed at a in front side of the line cathode and a back electrode is placed at a back side of said line cathode, the electron beam take-out electrode and back electrode also being arc shaped.