| abstract |
The present invention relates to a polyimide-polybenzoxazole precursor solution, a polyimide-polybenzoxazole film, and a preparation method thereof, wherein the film prepared by the polyimide-polybenzoxazole precursor solution of the present invention includes diamine and A film formed by copolymerizing dianhydride, diaminophenol, and dicarbonyl chloride unit structure in an organic solvent, and maintains the colorless and transparent properties of a conventional polyimide film, improves heat resistance, and has the advantage of having a lower birefringence. |