Partial developing method for cathode-ray tube dry electrophotographic screen manufacturing and its partial developing apparatus

摘要

The present invention provides a partial developing method for manufacturing a cathode ray tube type electrophotographic screen capable of uniformly developing a fine powder to be developed in a predetermined arrangement structure, and a partial developing apparatus therefor. In this method, the developing step moves the slide plate provided adjacent to the upper panel in the developing container to move the phosphor developing exit formed on the slide plate from one end to the other end of the panel, And developing it at a powder density. As a result, fine particles charged on the inner surface of the panel can be uniformly adhered by the dry electrophotographic manufacturing method with a predetermined arrangement of the electrostatic latent images, and a fluorescent film is formed with a uniform thickness on the inner surface of the panel .