Patent ID: 8436262

Claim:
A detecting method for a touch panel, comprising: providing a sensing matrix having a plurality of sensing units; detecting a sensing data generated from the sensing unit and measuring the sensing data transmitted from the sensing unit in a first frame period and obtaining a first threshold value based on the sensing data to define the sensing unit as a touch point or as a non-touch point based on the sensing data; grouping at least a portion of the touch points to form a touch point group, wherein a projection of the touch point in the touch point group is overlapping a projection of at least one touch point of the touch point group in one of a row direction or a column direction and is adjacent to a projection of at least one touch point of the touch point group in the other direction; retrieving touch points within the touch point group having extreme positions in the row direction and the column direction respectively; and determining a touch center position based on the extreme positions in the row direction and the column direction.