Matsushita Electric Industrial Co., Ltd.

Yuichi Moriyama

Toshifumi Nakatani

Kanji Imai

Fumio Yamazaki

Toshinobu Sekihara

Mitsunori Yokomakura

Takatsugu Kurata

Tomohiro Sekiguchi

Michiaki Watanabe

Keiji Nagata

An electrode structure including a plurality of beam control electrodes, a plurality of electrically insulating spacers disposed between each pair of 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 behind the electrode substrate for retaining the beam control electrodes. The electrode structure is manufactured by abutting a first support bench of high rigidity against the beam control electrodes in a predetermined shape and abutting a second support bench of high rigidity in a predetermined shape from behind the electrode substrate, applying a predetermined load to the electrode structure, applying a predetermined load to the fixing member to press the latter towards the electrode substrate, and welding each of the metallic pins and the associated fixing members together by the use of a laser welding process.

Flat panel display device and a method of making the same

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.

Display apparatus having spaced apart electron beam control electrodes

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. The electrode structure is manufactured by abutting a first support bench of high rigidity against the beam control electrodes in a predetermined shape and abutting a second support bench of high rigidity in a predetermined shape from rear of the electrode substrate, applying a predetermined load to the electrode structure, applying a predetermined load to the fixing means to press the latter towards the electrode substrate, and welding each of the metallic pins and the associated fixing means together by the use of a laser welding process.

In an image display apparatus, horizontal-extended line cathodes (22a-22d), an electron beam extraction electrode (23), a control electrode (24), a first focusing electrode (25) having horizontal-elongated apertures (35, 45), a second focusing electrode (26) having vertical-elongated apertures (36, 46), a horizontal deflection electrode (27a, 27b), a vertical deflection electrode (28a, 28b) and a screen (29) are provided in this order toward a travelling direction of electron beam, and each of both deflection electrodes comprises a pair of comb-shaped conductive sheets which are insulatedly interdigitated with each other on the same vertical plane.

Image display apparatus having sheet like vertical and horizontal

An image display apparatus for displaying images on a fluorescent screen comprising plural linear cathodes, an electron beam extraction electrode with plural apertures and vertical deflection electrodes which are formed by segments. The respective segments of the vertical deflection electrodes have various shapes, and deflection voltages applied to the respective segments can be varied so that distortion of the displayed images on the fluorescent screen may be corrected.

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Ibaraki, Japan

Yuichi Moriyama