Abstract: A front substrate is provided which has a phosphor screen including a phosphor layer and a black light-blocking layer, a metal back layer which is laid over the phosphor screen and is composed of a plurality of strip-shaped divisional electrodes, a getter layer which is laid over the metal back layer, and a dividing layer which electrically divides the getter layer over the black light-blocking layer. The dividing layer has electrical conductivity.

Abstract: An image display apparatus comprises a vacuum envelope including a front substrate in which a fluorescent surface is formed, and a back surface which is arranged opposite to the front substrate with a gap therebetween and in which a plurality of electron emission elements for exciting the fluorescent surface are provided, an interior of the vacuum envelope being kept vacuum, a metalback including a plurality of split portions that superpose the fluorescent surface, a plurality of connection resistors electrically connected to the split portions, respectively, a common electrode arranged outside the metalback and electrically connected to the metalback via the connection resistors, a power supply unit configured to supply electric charges to the common electrode, and a limiting resistor connected between the common electrode and the power supply unit, to limit the supply of electric charges from the power supply unit to the common electrode.

Abstract: A front substrate, which is included in an image display device, has a metal back layer which is laid over a phosphor screen and is composed of a plurality of insular divisional electrodes. The divisional electrode is composed of at least two row segments extending in a row direction X, and column segments which extend in a column direction Y and connect end portions of the row segments.

Abstract: A front substrate is provided which has a phosphor screen including a phosphor layer and a black light-blocking layer, a metal back layer which is laid over the phosphor screen and is composed of a plurality of strip-shaped divisional electrodes, a getter layer which is laid over the metal back layer, and a dividing layer which electrically divides the getter layer over the black light-blocking layer. The dividing layer has electrical conductivity.

Abstract: A front substrate of an image display device comprises a phosphor screen, a metal back layer lapped on the phosphor screen and having a plurality of divided regions spaced from one another, a common electrode which applies voltage to the metal back layer, and a plurality of connecting resistors which connect the common electrode and the plurality of divided regions of the metal back layer. A plurality of electron emitting elements which emit electrons toward the phosphor screen are arranged on a rear substrate opposed to the front substrate. The common electrode is covered by a coat member having a sheet resistance higher than that of the connecting resistors.

Abstract: On a rear plate of a vacuum envelope are provided a plurality of electron guns for emitting electron beams to a phosphor screen, and deflection devices for deflecting the plurality of electron beams emitted from the respective electron guns so as to dividedly scan a plurality of regions of the phosphor screen by the electron beams. Each of the deflection devices has a horizontal deflection coil and a vertical deflection coil. The horizontal deflection coils of the deflection devices are connected to one another in series, and the vertical deflection coils of the deflection devices are connected to one another in series. All the deflection devices are driven by a common deflection driving circuit which has a horizontal deflection driving circuit connected to the horizontal deflection coils and a vertical deflection driving circuit connected to the vertical deflection coils.

Abstract: A color cathode-ray tube comprises an envelope having rectangular flat face and rear plates opposing each other. A phosphor screen is formed on an inner surface of the face plate. Mask support members are mounted on an inner surface of the rear plate. A shadow mask is arranged in the envelope and supported by the mask support members to face the phosphor screen at a predetermined distance. A plurality of positioning posts are fixed on the inner surface of the rear plate and extend toward the face plate. A plurality of positioning pins extend from the inner surface of the face plate and engage the positioning posts so as to position the face plate at a predetermined position with respect to the rear plate. The shadow mask has setting openings through which the positioning posts extend so as to position the shadow mask at a predetermined position with respect to the rear plate.

Abstract: A color cathode-ray tube with a vacuum envelope that includes a rectangular, flat face plate and a rectangular, flat rear plate opposing the face plate. A phosphor screen is formed on an inner surface of the face plate, and fixing members are fixed to an inner surface of the rear plate. A shadow mask arranged in the envelope is supported by mask support members to face the phosphor screen at a predetermined distance. Plate support members are arranged in the envelope to support a load of atmospheric pressure acting on the face plate and the rear plate. The mask support members and the plate support members are fixed to the fixing members while being in close contact with the inner surface of the rear plate.

Abstract: A picture apparatus includes a vacuum envelope which has a phosphor screen and a plurality of electron gun assemblies for emitting electron beams to the phosphor screen, and a deflection device for deflecting the electron beams emitted from the electron gun assemblies. The deflection device has a plate-like coupling member arranged to face the vacuum envelope, and a plurality of elemental deflection units for deflecting the electron beams to scan the phosphor screen dividedly. The deflection units are fixed to the coupling member and located at predetermined positions, respectively.

Abstract: A color cathode-ray tube comprises an envelope having rectangular flat face and rear plates opposing each other. A phosphor screen is formed on an inner surface of the face plate. Mask support members are mounted on an inner surface of the rear plate. A shadow mask is arranged in the envelope and supported by the mask support members to face the phosphor screen at a predetermined distance. A plurality of positioning posts are fixed on the inner surface of the rear plate and extend toward the face plate. A plurality of positioning pins extend from the inner surface of the face plate and engage the positioning posts so as to position the face plate at a predetermined position with respect to the rear plate. The shadow mask has setting openings through which the positioning posts extend so as to position the shadow mask at a predetermined position with respect to the rear plate.

Abstract: A picture apparatus includes a vacuum envelope which has a phosphor screen and a plurality of electron gun assemblies for emitting electron beams to the phosphor screen, and a deflection device for deflecting the electron beams emitted from the electron gun assemblies. The deflection device has a plate-like coupling member arranged to face the vacuum envelope, and a plurality of elemental deflection units for deflecting the electron beams to scan the phosphor screen dividedly. The deflection units are fixed to the coupling member and located at predetermined positions, respectively.