Patent ID: 9582113
Date: 2017-02-28
CPC Classifications: G06F

Claim:
1. A method for improving coordinate accuracy of a touch panel having sensing lines so arranged to form an array, wherein a very first sensing line and a very last sensing line are edge sensing lines, and each of the sensing lines as well as the edge sensing lines is defined with a system generated coordinate, the method comprising the steps of: detecting existence of a touch point influencing at least one sensing line; determining existence of an edge sensing line; providing signal strengths to the at least one sensing line and a sensing line immediately adjacent to the at least one sensing line; generating a virtual sensing line immediately adjacent to the at least one sensing line and extending out the touch panel if the existence of the edge sensing line is confirmed, wherein the virtual sensing line has a signal strength responsive to a result of signal difference between the at least one sensing line and the sensing line immediately adjacent to the at least one sensing line; and obtaining an actual coordinate of the touch point by weighing coordinates of the at least one sensing line, the sensing line immediately adjacent to the at least one sensing line and the virtual sensing line via system generated coordinates, wherein the at least one sensing line is provided with a signal strength S