Patent ID: 11861931
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Chemical engineering (Chemistry)
Classification: CPC G  B  H | IPC B  G  H

Claim 17:
18. The manufacturing method according to claim 17, wherein polarizing the piezoelectric layer comprises:
conducting the plurality of thin film transistors, applying a fixed voltage to the plurality of sub-electrodes respectively, and electrically connecting the second electrode to a high-voltage power supply, so that the active layer is switched from the insulating state to the conducting state to conduct the plurality of sub-electrodes;
polarizing the piezoelectric layer by using a high-voltage electric field generated between the first electrode and the second electrode; and
disconnecting the second electrode from the high-voltage power supply upon the piezoelectric layer having been polarized, and switching the active layer from the conducting state to the insulating state to form the piezoelectric sensor.