Method of making color phosphor screen of color picture tube nishizawa m,ja
Abstract
Abstract A METHOD OF MAKING A COLOR PHOSPHOR SCREEN OF A COLOR PICTURE TUBE IN WHICH A PHOTOSENSITIVE MATERIAL IS COATED ON AN INNER SURFACE OF A FACEPLATE OF A COLOR PICTURE TUBE, THE PHOTOSENSITIVE MATERIAL IS EXPOSED THROUGH A SHADOW MASK, THE EXPOSED PHOTOSENTIVE MATERIAL IS DEVELOPED TO FORM TEMPORARY DOTS ON THE INNER SURFACE OF THE FACEPLATE, THE TEMPORARY DOTS ARE TREATED WITH A CONTRACTING AGENT IN DAMPED CONDITION, THE CONTRACTED DOTS ARE HARDENDED, A BLOCK MATERIAL IS COATED ON THE INNER SURFACE OF THE FACEPLATE HAVING FORMED THEREON THE HARDENED TEMPORARY DOTS, THE TEMPORARY DOTS AND THE BLACK MATERIAL ARE REMOVED TO FORM VOID AREAS, AND PREDETERMINED COLOR PHOSPHORS ARE DEPOSITED ON THE VOID AREAS.
Inventors
- 👤 K Nishino
- 👤 M Wakabayashi
Bibliographic Details
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