Faceplate front assembly with improved tension mask support structure

A faceplate assembly for a color cathode ray tube including a glass faceplate having on its inner surface a centrally disposed phosphor screen, and a metal foil shadow mask mounted in tension on a mask-support structure comprising a tapered trough of metal having a V-shape located on opposed sides of the screen and secured to said inner surface, with the bottom of said structure partially filled with a devitrified solder glass of relatively low viscosity when in the form of an undevitrified paste, and with the remainder of said structure completely filled with devitrified solder glass of relatively high viscosity when in the form of an undevitrified paste.

A faceplate assembly for a color cathode ray tube including a glass faceplate having on its inner surface a centrally disposed phosphor screen, and a metal foil shadow mask mounted in tension on a mask-support structure comprising a tapered trough of metal having a V-shape located on opposed sides of the screen and secured to said inner surface, with the bottom of said structure partially filled with a devitrified solder glass of relatively low viscosity when in the form of an undevitrified paste, and with the remainder of said structure having an over-fill of devitrified solder glass of relatively high viscosity when in the form of an undevitrified paste, said solder glass, when devitrified, provided for securing said structure to said faceplate, and said over-fill providing for fillets of devitrified solder glass extending from said structure for sealing said structure to said faceplate.