| 摘要 |
The present invention relates to: a polyamide-imide precursor, comprising, in a molecular structure, a first block obtained by copolymerizing monomers including dianhydride and diamine, a second block obtained by copolymerizing monomers including an aromatic dicarbonyl compound and diamine, and a third block obtained by copolymerizing monomers including an aromatic dicarbonyl compound and aromatic diamine, wherein the dianhydride for forming the first block contains 2-bis(3,4-dicarboxyphenyl)hexafluoropropane dianhydride (6FDA), and wherein the diamine for forming the first and second blocks contains 9,9-bis(3-fluoro-4-aminophenyl)fluorene (FFDA); a polyamide-imide obtained by imidizing the precursor; a polyamide-imide film; and an image display device comprising the film. |
