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Dual layer phosphor screen for cathode ray tube
   
Document Number
US Patent 4204136
Issued Date
May 20, 1980
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Abstract
A cathode ray tube is described having a high brightness, high resolution cathodoluminescence screen which exhibits a low noise level. Two discrete phosphor layers are provided on the interior of the tube faceplate. A thin electrophoretically deposited first phosphor layer of very finely divided phosphor is disposed upon the interior surface of the tube faceplate. A second gravity settle phosphor layer is disposed over the first phosphor layer.
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Dual layer phosphor screen for cathode ray tube - US Patent 4204136 Drawing
Drawing from US Patent 4204136
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Number of Claims:
4
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Owner
Published
May 20, 1980
Application Number
05/887,895
Filed
March 17, 1978
US Classification
313/473   204/486 427/69
Int'l Classification
H01J   29/26   (20060101)   H01J   29/18   (20060101)   H01J   9/22   (20060101)  
Examiner
Attorney/Law Firm
USPTO Field of Search
313/473  
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