Patent ID: 8493350

Claim:
A touch panel, comprising: a plurality of light sensing circuits, each light sensing circuits being configured to generate light sensing data according to brightness of incident light; a plurality of scan lines coupled to the plurality of light sensing circuits; a scan driving unit configured to sequentially apply scan pulses to the plurality of light sensing circuits via the plurality of scan lines; a plurality of data lines coupled to the plurality of light sensing circuits; a data receiving unit configured to receive the light sensing data transmitted via the plurality of data lines in a first data receiving state and a second receiving state, and generate touch data including first touch data and second touch data; and a location calculation unit configured to determine a touch location by using the touch data, wherein in the first data receiving state, two directly neighboring data lines in each of first combinations of data lines are electrically coupled to each other, and light sensing data from the data lines in each of the first combinations are combined so as to generate a first data, the first touch data including the first data from each of the first combinations, in the second data receiving state, two directly neighboring data lines in each of second combinations of data lines are electrically coupled to each other and light sensing data from the data lines in each of the second combinations are combined so as to generate a second data, the second touch data including the second data from each of the second combinations, and the second combinations are different from the first combinations, wherein only the first and second data receiving states are alternately switched per frame, every two directly neighboring data lines being electrically coupled via a switch to provide m/2 or (m/2)−1 data, where m is a number of data lines.