| 摘要 |
PURPOSE:To check a docking phenomenon of a phosphor stripe by a method wherein a photosensitive resin film having a reciprocity law failure characteristic is formed, a photocrosslinking agent in the film is exposed without photocrosslinking a resin component in the film and the film of a noncolor black substance is formed after being developed. CONSTITUTION:A photosensitive resin having a reciprocity law failure is thinly applied to the inside panel face of a picture tube while being dried to form a resin film. Next, a light source position is displaced through a shadow mask in order to irradiate only the position, whereon a black stripe is to be formed, by light followed by being exposed. Then the shadow mask is removed in order to expose totally the panel inside and after performing development in order to selectively remove a part of the resin film located in the position where a photoabsorbing layer to be formed, the film of a noncolor black substance is formed on the resin film located in the position desired to be applied by a phosphor. Subsequently, exfoliation is performed by a sulfamic acid water solution or the like in order to form a black stripe. |
