| abstract |
A polyimide film having excellent heat resistance, excellent folding resistance, a low linear expansion coefficient, and a high elastic modulus that can be suitably used for production of a flexible device, and lamination of a polyimide film and an inorganic substrate Provide the body. An aromatic tetracarboxylic dianhydride component containing 10 mol% or more of 2,3,6,7-naphthalenetetracarboxylic dianhydride and an aromatic diamine component containing 60 mol% or more of a specific aromatic diamine. It can be achieved by a polyimide film obtained by using a polyimide film having a linear expansion coefficient of 0 ppm / ° C. or more and less than 10 ppm / ° C. and an elastic modulus at 25 ° C. exceeding 3.5 GPa. [Selection figure] None |