Patent ID: 8081167

Claim:
A driving method of a display device, comprising: reading sense data signals of a first sensing unit row, the sense data signals being sequentially input; determining for each sense data signal whether the sense data signal is included in a contactable range; converting each sense data signals into a preliminary signal, each preliminary signal having a predetermined value based on whether the sense data signal is included in the contactable range; determining whether the first sensing unit row includes an X axis sensed area using the preliminary signals; determining whether the X axis sensed area is in an effective contact region when the X axis sensed area is present; determining whether a Y axis sensed area is present when the X axis sensed area is in the effective contact region; determining whether the Y axis sensed area is in the effective contact region when the Y axis sensed area is present; determining a contact position when the X axis sensed area is in the effective contact region; and reading sense data signals of a second sensing unit row after the determining of the contact position for the first sensing unit row is finished.