The sensing electrodes contained in each pixel group 210 or 220 have the same voltage, and {HEAD ~ this voltage} can be represented by {TAIL ~ the following equation} 1: 
represented by
The sensing electrodes contained in each pixel group 210 or 220 have the same voltage , and { HEAD ~ this voltage } can be represented by { TAIL ~ the following equation } 1 :
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH