CPC G09G 3/3258 (2013.01) [G09G 3/3233 (2013.01); G09G 2300/0426 (2013.01); G09G 2300/0819 (2013.01); G09G 2300/0842 (2013.01); G09G 2310/08 (2013.01); G09G 2320/029 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/0295 (2013.01); G09G 2320/043 (2013.01); G09G 2320/045 (2013.01)] | 18 Claims |
1. A display device, comprising:
a display panel comprising a plurality of sub-pixels and a plurality of sensing lines, each of the sub-pixel being connected to one of the sensing lines;
a reference voltage providing circuit configured to provide a reference voltage, wherein a value of the reference voltage is a middle value of an upper limit and a lower limit of a measurement range of the sampling circuit;
a sampling circuit, electrically connected to the sensing lines and the reference voltage providing circuit, respectively, and configured to acquire a voltage on each sensing line to obtain a first sampling value, and acquire the reference voltage provided by the reference voltage providing circuit to obtain a second sampling value; and
a processing circuit, electrically connected to the sampling circuit, and configured to correct the first sampling value based on the second sampling value and the reference voltage.
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