| 摘要 |
PURPOSE:To obtain a fluorescent screen, which is provided with thin black-light absorbing parts having a small width and finely-chiseled side edges, by forming residual photosensitive resin layer parts, which restrict the width of the said thin black-light absorbing parts dividedly in two times. CONSTITUTION:After a first photosensitive resin layer 12 is formed by applying a photosensitive resin over a glass panel 11, the layer 12 is subjected to the first exposure carried out through an electron-beam-reaching-position determination mask 13, and is subjected to a development treatment. Next, the unexposed parts of the layer 12 are removed, and the remaining parts of the layer 12 are hardened so as to form stripped first residual photosensitive resin layer parts 12'. Following that, a photosensitive resin is appied over the whole surfaces of the parts 12' to form a second photosensitive layer 16, the layer 16 is subjected to exposure carried out through the mask 13 in the same manner as the first exposure, and a development and a hardening treatment are performed so as to form second residual photosensitive resin layer parts 16'. Next, thin black- light absorbing parts 17' are formed by means of the photosensitive resin layer parts 12' and 16'. After that, phosphors with various emission colors are provided on the parts 17', in order, so as to complete a fluorescent screen. |
