CPC G09G 3/3233 (2013.01) [G09G 2300/0819 (2013.01); G09G 2300/0842 (2013.01); G09G 2310/08 (2013.01); G09G 2320/029 (2013.01); G09G 2330/12 (2013.01)] | 20 Claims |
1. A sensing circuit of a display device, comprising:
a first line selection switch which connects a first sensing line to a sensing channel in a first sub-sensing period in a first sensing period;
a first noise selection switch which connects the first sensing line to a reference channel in a second sub-sensing period in a second sensing period;
a second line selection switch which connects a second sensing line to the sensing channel in the second sub-sensing period; and
a second noise selection switch which connects the second sensing line to the reference channel in the first sub-sensing period,
wherein, in a first sampling period in the first sub-sensing period, the sensing channel samples a first sensing voltage and a noise of the first sensing line, and the reference channel samples a noise of the second sensing line,
wherein, in a second sampling period in the second sub-sensing period, the sensing channel samples a second sensing voltage and a noise of the second sensing line, and the reference channel samples a noise of the first sensing line, and
wherein the first sensing line and the second sensing line are connected to different pixels, each including a first switching transistor connected to a data line and a second switching transistor connected to a corresponding one of the first sensing line and the second sensing line.
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