Antiglare/antistatic coating for CRT

Details Antiglare/antistatic coating for CRT Antiglare/antistatic coating for CRT

1994-08-11

1995-06-27

Lusignan, Michael

Coating processes

Electrical product produced

Fluorescent or phosphorescent base coating

427240, 427299, 427379, 4274196, B05D 506, B05D 512

Patent

active

054278180

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.

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