Abstract: A cathode ray tube is mounted with a reinforcing band for improving landing stability of electron beams and howling of shadow mask and reinforcing an explosion-proof function.

Abstract: A color cathode ray tube comprising a panel having a substantially flat outer surface, a funnel mounted on a rear side of the panel, a shadow mask including a plurality of electron beam through holes, and a mask frame for supporting the shadow mask, said mask frame satisfying the following condition: d/v?0.9, d/h?0.9 wherein d is a height of a center of a diagonal portion of the mask frame, h is a height of a center of a short side portion of the mask frame, and v is a height of a center of a long side portion of the mask frame.

Abstract: A cathode ray tube comprising a panel of which an outer surface is substantially flat; a shadow mask installed with a certain interval from an inner surface of the panel, having a plurality of apertures through which electron beams pass, and formed as a pin-cushion shape in which long and short sides of the shadow mask are inwardly concaved; and the mask frame for fixing and supporting the shadow mask, wherein long and short sides of the mask frame are slanted from ends toward centers thereof in order to maintain a predetermined interval with the long and short sides of the shadow mask. According to this, a strength of the shadow mask is increased and an influence of a magnetic field is reduced thus to obtain an optimum quality.

Abstract: A cathode ray tube is mounted with a reinforcing band for improving landing stability of electron beams and howling of shadow mask and reinforcing an explosion-proof function.

Abstract: A color cathode ray tube comprising a panel having a substantially flat outer surface, a funnel mounted on a rear side of the panel, a shadow mask including a plurality of electron beam through holes, and a mask frame for supporting the shadow mask, said mask frame satisfying the following condition: d/v≧0.9, d/h≧0.9 wherein d is a height of a center of a diagonal portion of the mask frame, h is a height of a center of a short side portion of the mask frame, and v is a height of a center of a long side portion of the mask frame.