TOUCH SENSOR SYSTEM USING OF TOUCH POINT VIBRATION

摘要

PURPOSE: A touch sensor system using the vibration of a touch point is provided to improve utilization by rapidly and accurately determining the location of a touch point from a display window. CONSTITUTION: A transparent sheet(20) is formed as a lattice(25) which is composed of piezoelectric materials on a horizontal and vertical side line. A signal processing unit(30) receives signals by connecting to the lattice. A touch point calculation unit(40) calculates the location of the lattice by extracting an initial signal from the horizontal and vertical side line. The touch point calculation unit calculates the location of the touch point using a cross point of a line which is extended from the extracted lattice point. [Reference numerals] (30) Signal processing unit; (40) Touch point calculation unit; (AA) X axis; (BB) Y axis