초록 ▼

An envelope of a cathode ray tube includes a substantially rectangular flat face plate, and a substantially rectangular flat rear plate opposed to the face plate with a side wall being interposed therebetween, a plurality of funnels extending from the rear plate. A plurality of necks extend from the

An envelope of a cathode ray tube includes a substantially rectangular flat face plate, and a substantially rectangular flat rear plate opposed to the face plate with a side wall being interposed therebetween, a plurality of funnels extending from the rear plate. A plurality of necks extend from the respective funnels, and a plurality of electron guns are respectively arranged in the necks. A plurality of plate support portions are arranged between the rear plate and the face plate, so as to support the rear plate and the face plate against an atmospheric pressure. Each plate support portion includes a support body made of glass which is integrally welded with the rear plate and extends from the rear plate toward the face plate, and a distal end portion jointed to the extending end of the support body and being in contact with the face plate.

대표청구항 ▼

[ What is claimed is:] [1.] An image display apparatus comprising:an envelope including a substantially rectangular flat face plate having a phosphor screen formed on an inner surface thereof, a substantially rectangular flat rear plate opposed to the face plate with a side wall being interposed the

[ What is claimed is:] [1.] An image display apparatus comprising:an envelope including a substantially rectangular flat face plate having a phosphor screen formed on an inner surface thereof, a substantially rectangular flat rear plate opposed to the face plate with a side wall being interposed therebetween, and a plurality of plate support portions arranged between the rear plate and the face plate, for supporting the rear plate and the face plate against an atmospheric pressure;an electron emission section positioned in the rear portion of the envelope, for emitting an electron toward the phosphor screen; andeach of the plate support portions including a support body made of glass which is integrally welded to the rear plate without the aid of an intermediate material and extends from the rear plate toward the face plate.