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US 6,168,850 AGranted
Composition for a photo-conductive layer and a method for preparing a fluorescent layer on a CRT panel
AssigneeSamsung Display Devices Co., Ltd.
InventorsMin-Ho Kim, Jae-Ho Sim
Life of this patent
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Abstract
A composition for a photo-conductive layer and an electron transferring complex system on a color CRT panel having 1-(p-diethylaminophenyl)-1,4,4-triphenyl-1,3-butadiene as an electron donor and a thioxanthene derivative as an electron acceptor in an organic binder dispersion system have not only a high electron transferring capability but also a high electron generating capability so that it is not necessary to add a separate electron generating material.
Claims5
A cathode ray tube comprising:
- a glass bulb having at least one panel;
- a conductive layer coated on the panel;
- a photoconductive layer coated on the conductive layer, the photoconductive layer including an electric charge transferring complex system comprising:
- an organic binder;
- 1-(p-dialkylaminophenyl)-1,4,4-triphenyl-1,3-butadiene of formula 1;
- and
- a thioxanthene derivative of formula 2;
- wherein in formula 1 each (R0) independently represents an alkyl group, and in formula 2, R1 is selected from the group consisting of ethoxycarbonyl, butoxycarbonyl, phenoxycarbonyl, octylcarbonyl, benzyloxycarbonyl, ethyl, propyl, butyl, t-butyl, ethoxy, propoxy and butoxy groups, and R2 is selected from the group consisting of hydrogen, halogen, alkyl, alkoxy, cyano, nitro, ester and trifluoromethyl groups;
- a black matrix formed in a pattern having voids on the photoconductive layer;
- and
- phosphors coated in the voids of the black matrix pattern.
8 more elements
Dependencies are inferred from the claim text.