Display device comprising a display screen having an antistatic and light-absorbing coating
AssigneeU.S. Philips Corporation
InventorsGerardus V. A. Aben, Leo H. M. Krings
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Abstract
The display screen 3 of a cathode ray tube 1 is provided with an antistatic, light-absorbing coating 8 which consists of ATO (Sb:SnO2) particles and polypyrrole particles. The coating may be provided with additional layers of silicon dioxide to obtain an antireflective and antiglare effect.
Claims9
A display device comprising a display screen having an antistatic, light-absorbing coating which contains latex particles of electroconductive polypyrrole characterized in that the coating predominately consists of a homogeneous mixture of said latex particles of polypyrrole, a steric stabilizer for said particles of polypyrrole in an excess amount and antimony-doped tin oxide particles.
A method of manufacturing an antistatic, light-absorbing coating on a display screen of a display device, characterized in that an aqueous suspension of latex particles of a polypyrolle compound comprising a steric stabilizer therefore in an excess amount is mixed with an aqueous suspension of antimony-doped tin oxide particles, whereafter a layer of the mixture thus obtained is spun onto the display screen and subsequently dried, thereby forming the coating.
Dependencies are inferred from the claim text.