METHOD FOR APPLYING A CONVERGENCE DRIFT COATING TO A NECK OF A CATHODE RAY TUBE

摘要

In a method for applying a convergence drift coating (17) to a cathode ray tube (1), the convergence drift coating is applied to a neck (4). A first end (27) of the neck is sealed to a narrow end (30) of a funnel (50) after having applied the convergence drift coating to the neck. A conductive coating (15) is applied to an internal surface (32) of the funnel so that the conductive coating contacts the convergence drift coating. The wide end (29) of the funnel is sealed to a panel (3) having a luminescent screen (12) to form an envelope (2). An electron gun assembly (13) is sealed to the neck. The envelope is then exhausted and sealed to form the cathode ray tube.