PHOSPHOR SCREEN FOR COLOR CATHODE-RAY TUBE
PROBLEM TO BE SOLVED: To provide a phosphor screen for a color cathode-ray tube which does not significantly deteriorate white uniformity even in the case landing of electron beam to phosphor stripe layers is shifted due to earth magnetism or the like. SOLUTION: In respective red-, green-, and blue-...
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Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a phosphor screen for a color cathode-ray tube which does not significantly deteriorate white uniformity even in the case landing of electron beam to phosphor stripe layers is shifted due to earth magnetism or the like. SOLUTION: In respective red-, green-, and blue-emitting phosphor stripe layers 13r, 13g, 13b, the stripe width Wb of the blue-emitting phosphor stripe layers 13b is set to be wider than the stripe width Wr, Wg of other phosphor stripe layers 13r, 13g of two colors and the color difference caused by miss landing of electron beam is limited only in the blue color direction, so that significant deterioration of white uniformity can be prevented even in the case landing of the electron beam on the phosphor screen is greatly shifted due to earth magnetism or the like. |
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