Frit coating method, a frit coating apparatus, a sealing apparatus, and a sealing method for a flat-type cathode-ray tube

Abstract

In a sealing apparatus used in a process for sealing a glass tube-assembly of a flat-type cathode-ray tube by frits, three of a front panel, a screen panel and a funnel can be sealed together, and the front panel can be prevented from being broken. The sealing apparatus includes a frame for properly positioning a combined assembly in which the front panel, the screen panel and the funnel are butted with each other by frits and the following sealing jig (41). The sealing jig (41) includes a holding means (42) for holding a front panel (2) and a screen panel (3) under the condition that joint surfaces of the front panel and the screen panel are butted with each other by frits. The holding means (42) is provided with a first resilient member (43) which is urged against the outer surface of the front panel (2) and a second resilient member (42) which is urged against the outer surface of the screen panel (3). A portion in which the first resilient member (43) is urged against the outer surface of the front panel (2) is provided with a member (45) whose hardness is selected to be less than that of a panel glass

Dependencies are inferred from the claim text.