Patent ID: 11917896
Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
Field: nan (nan)
Classification: CPC H  Y | IPC H

Claim 1:
2. The method of manufacturing the flexible substrate according to claim 1, wherein 2,5-bis(4-aminophenylthio)thiophene is used as a diamine, 4,4′ bis(3,4 dicarboxyphenylthio) diphenyl sulfide dianhydride is used as a dianhydride, the diamine and the dianhydride are dissolved in a solvent of N-methylpyrrolidone, a molar ration of diamine and the dianhydride is 1:1, and a solid content of a solution comprising the diamine and the dianhydride is controlled by 15%, the solution is coated on a surface of the glass substrate, and a film is formed by polymerizing at 300° C. under a nitrogen atmosphere to obtain a first polyimide layer having a refractive index of 1.75.