公开(公告)号：US5404073A

公开(公告)日：1995-04-04

申请号：US151155

申请日：1993-11-12

Applicant: Hua-Sou Tong ,  Chun-Min Hu

Inventor： Hua-Sou Tong ,  Chun-Min Hu

IPC: C03C17/30 ,  H01J9/20 ,  H01J29/86 ,  H01J29/88 ,  H01J29/89

CPC classification number: H01J29/896 ,  H01J29/868

Abstract: An antiglare/antistatic coating for a cathode ray tube (CRT) is applied to the outer surface of the CRT's faceplate and includes a first inner hygroscopic layer of silane, water, sulfuric acid and an alcohol mixture which may be applied by dipping, spinning or spraying. The coating further includes a second outer layer of silanes, water, acid, epoxy, and a coupling agent balanced with an alcohol mixture which is sprayed onto the first inner layer. The grounded first inner layer possesses high conductivity for antistatic protection, while the second outer layer, which possesses glass-like characteristics, provides antiglare protection by reducing the faceplate's reflectivity. The second outer layer dries as a hard porous coating which resists scratching and allows water vapor to penetrate into the first inner hygroscopic layer to maintain its high conductivity.