| 摘要 |
PURPOSE: A touch sensor system is provided to accurately and quickly verify the location of a touch point on a screen where touch input is performed, to simplify the manufacturing process, to lower the unit price, and to be applicable to various devices. CONSTITUTION: A touch sensor system using the vibration of a touch point includes the following parts: a first sensor bar(11) where a lattice made of a piezoelectric material is formed at one side; a second sensor bar(12) where a lattice made of a piezoelectric material is formed at one side; a touch plate(20) where the first sensor bar and the second sensor bar are combined with the horizontal side(X) and the vertical side(Y) respectively; a signal processing part(30) connected to the first sensor bar and second sensor bar, and receiving electric signals; a touch point calculation part(40) extracting the signals received by the signal processing part and calculating the location of a touch point; and a signal transmission part(50) transmitting the touch point location information calculated by the touch point calculation part to the outside. The touch point calculation part includes a first touch point calculation part(42) calculating a touch location on the touch plate from the electric signals received by the signal processing part, and a second touch point calculation part(48) converting the touch location on the touch plate calculated by the first touch point calculation part into a relative location with respect to a screen displayed on the touch plate. [Reference numerals] (30) Signal processing part; (40) Touch point calculation part; (42) First touch point calculation part; (48) Second touch point calculation part; (50) Signal transmission part; (AA) X axis; (BB) Y axis |
