×

Detecting method for touch panel

  • US 8,436,262 B2
  • Filed: 09/29/2009
  • Issued: 05/07/2013
  • Est. Priority Date: 09/30/2008
  • Status: Active Grant
First Claim
Patent Images

1. 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.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×