Patent ID: 6461668
Filing Date: 2002-10-08
Classification: H01J

Abstract:
A method of manufacturing a cathode ray tube, which comprises the steps of:supplying an untreated panel for a cathode ray tube to a starting point of a phosphor screen-forming line for forming at least one of a black film, a phosphor film and an aluminum film, and including a single washing station; washing the untreated panel in said washing station; forming a black film on an inner surface of the washed panel; inspecting the black film; automatically rejecting a defective panel having a defective black film from the phosphor screen-forming line; recycling the defective panel to the starting point of the phosphor screen-forming line; washing the black film off the defective panel in said washing station; and forming another black film on the inner surface of the panel, wherein at a plurality of occurrences when a recycled panel and an untreated panel are both available at the starting point of the phosphor screen-forming line to enter the phosphor screen-forming line, in each of said occurrences the recycled panel is automatically selected in preference to the untreated panel to enter the phosphor screen-forming line, said washing station is capable of washing said untreated panel and said recycled panel, and said washing station performs different washing treatments for the untreated panel and the defective panel.