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

Claim 2:
3. The method of manufacturing the flexible substrate according to claim 1, wherein a molar ratio of the diamine and the dianhydride in the solvent of N-methylpyrrolidone is adjusted to decrease a molar ratio of 2,5-bis(4-aminophenylthio)thiophene, the flexible substrate having a refractive index less than 1.75 is obtained; and
wherein the molar ratio of the diamine and the dianhydride in the solvent of N-methylpyrrolidone is controlled between (0.5-1):1 to obtain a second polyimide layer, and a film is sequentially formed to obtain the flexible substrate having a refractive index gradient.