Patent ID: 11915650
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 12:
13. The sensing circuit of claim 7, wherein, in the second sampling period, a second line selection signal, the sampling signal and the reference signal have an active level, and a first line selection signal and the channel connection signal have an inactive level,
wherein the second line selection switch is turned on in response to the second line selection signal having the active level, the first sampling switch and the second sampling switch are turned on in response to the sampling signal having the active level, the second sensing voltage of the second sensing line is applied to the first electrode of the sampling capacitor through the second line selection switch and the first sampling switch, and the initialization voltage is applied to the first electrode of the reference capacitor through the second sampling switch, and
wherein the first reference switch and the second reference switch are turned on in response to the reference signal having the active level, the reference voltage is applied to the second electrode of the sampling capacitor through the first reference switch, and the reference voltage is applied to the second electrode of the reference capacitor through the second reference switch.