Patent ID: 11961470
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 7:
8. The correction method of claim 6, further comprising
calculating a correction value of the integration capacitor, which comprises:
supplying a third voltage signal from the first signal terminal to the in-phase input terminal of the operation amplifier and supplying a first current signal from the second signal terminal to the integration capacitor and the anti-phase input terminal of the operation amplifier by controlling the first switch, the third switch and the fifth switch to be turned on and the second switch, the fourth switch and the sixth switch to be turned off;
acquiring a third digitized output voltage signal at the second terminal of the analog-to-digital converter and a third digitized input voltage signal at the first terminal of the analog-to-digital converter; and
calculating a correction value of the integration capacitor according to a third digitized voltage signal obtained after performing digital processing on the third voltage signal, the third digitized output voltage signal, the third digitized input voltage signal, and a capacitance of the integration capacitor.