| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a resin black matrix which has high light shieldability and excellent surface flatness and is improved in adhesion property to substrate by incorporating a siloxane bond into the main chain of the polyimide of the resin black matrix formed by dispersing a light shielding agent into the polyimide. SOLUTION: A siloxane bond is incorporated into the main chain of the polyimide of the resin black matrix formed by dispersing a light shielding agent into the polyimide. The paste for the resin black matrix is a paste for resin black matrix contg. polyamic acid, solvent and light shielding agent. The polyamic acid contains the siloxane bond in the main chain. The polyimide obtd. by heating the polyamic acid obtd. by bringing diamine and detracarboxylic dianhydride into reaction or by imidization with a suitable catalyst has the structural unit expressed by the formula. In the formula, R<1> denotes 1 to 22C bivalent org. group, R<2> denotes 2 to 22C quadrivalent org. group.</p> |
