Abstract: Disclosed is an electrostatic charging apparatus for electrostatically charging the inside surface of the screen panel of a color cathode ray tube to make powdery phosphor to be applied to the inside surface by the electrical attraction, which comprises a corona charger for electrostatically charging the inside surface, a stand frame for supporting the corona charger, a mounting means for supporting the screen panel with the part of the inside surface of the display being wholly exposed to the corona charger with a space therebetween, and a power supply for supplying a high voltage to the corona charger, wherein the corona charger has a convex surface with a plurality of charging electrodes uniformly distributed.

Abstract: A method for manufacturing a screen of a color cathode ray tube, comprising the steps of: (a) coating an adhesion strengthening layer over the inner surfaces of a panel and a panel skirt; (b) coating black matrix stripes and fluorescent stripes on the adhesion strengthening layer in the panel; (c) coating a pyrolysis mitigating layer on said adhesion strengthening layer within the panel skirt; (d) coating an organic film on the black matrix and fluorescent stripes; and (e) coating a thin metal film on the resultant structure. The pyrolysis of the poly vinyl alcohol is delayed during baking by the acryl emulsion contained in the pyrolysis mitigating layer. This process prevents swelling up and peeling off of the thin metal film during the baking step, and reduces inferior products that result from the peeling off of pieces of the metal layer.