Display substrate resin composition, method of producing resin thin film and the resin thin film for a display substrate for a display substrate

According to the present invention, a high heat resistance, suitable thermal expansion coefficient and high tensile display substrate resin composition capable of forming a resin thin film for a display device substrate having a strength is provided. The present invention comprises a structural unit represented by the formula (1), and the polyamic acid weight average molecular weight of 10,000 or more, and an organic solvent, by a display substrate resin composition, to solve the above . Here in formula (1), [Formula 1]