Patent ID: 11967285
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 12:
13. A current sensing method of a pixel driving circuit of a display apparatus, wherein the display apparatus is the display apparatus according to claim 9, the set voltage generation circuit includes a first transistor, a first storage capacitor and a second light-emitting device, the current sensing method comprising:
receiving, by the first transistor of the set voltage generation circuit, a control voltage signal and a power supply voltage signal;
generating, by the first transistor of the set voltage generation circuit, a driving current due to the control voltage signal and the power supply voltage signal, wherein a voltage of the control voltage signal is obtained according to a corresponding relationship between a target brightness of a first light-emitting device of a sub-pixel to be detected and a voltage value of a control electrode of the driving transistor of the sub-pixel to be detected;
outputting, by the set voltage generation circuit, the set voltage signal according to the driving current;
receiving, by the current detection circuit electrically connected to the set voltage generation circuit, the set voltage signal; and
transmitting, by the current detection circuit, the set voltage signal to a sensing signal terminal of a sub-pixel electrically connected to the current detection circuit in the sensing period.