| abstract |
An object of the present invention is to provide a resin composition for a display substrate which can form a useful polyimide film having an appropriate linear expansion coefficient and moderate flexibility. n The means for solving the problem is a resin composition for a display substrate, which comprises a polylysine or a polyimine which is a structural unit and a formula represented by the following formula (1) (3) In the structural unit shown, the polyimine is a structural unit represented by the following formula (2) and a structural unit represented by the formula (4). [in equations (1) to (4), X 1 Shown as a tetravalent organic group having an aromatic group and two carbonyl groups, Y 1 Shown as a divalent aromatic or aliphatic group, Y 2 It is shown as a divalent aromatic group having two or more nitrogen atoms, and n and m are shown as natural numbers. |