| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain an optical film that forms various kinds of functional layers at a high temperature and has excellent heat resistance and optical properties and to provide an image display using the same. <P>SOLUTION: The optical film comprises a polyimide having a structure derived from a tetracarboxylic acid containing at least two six-membered carbon ring (no ≤2C bridge structure exists in the six-membered carbon ring). <P>COPYRIGHT: (C)2007,JPO&INPIT |
