Patent ID: 8405622

Claim:
A touch screen contact position determination method, comprising: detecting a change in capacitance at an intersection of at least two groups of sense pads disposed in different diagonal directions with respect to orthogonal directions of a touch screen area; translating a point of intersection of the two groups of sense pads into coordinates of the orthogonal directions, wherein each group of sense pads has a first intercept value and a second intercept value, the first intercept value corresponding to a position where the diagonal of the group of sense pads intersects a first axis of the orthogonal directions, and the second intercept value corresponding to a position where the diagonal of the group of sense pads intersects a second axis of the orthogonal directions; and translating the point of intersection includes one arithmetic operation between the first intercept values and one arithmetic operation between the second intercept values of the intersecting sense pad groups.