Patent ID: 9557837
Date: 2017-01-31
CPC Classifications: G06F,Y10S

Claim:
1. A touch input apparatus, comprising: a first carbon nanotube layer of which carbon nanotubes each are disposed to be roughly parallel to a first direction; a second carbon nanotube layer of which carbon nanotubes each are disposed to be roughly parallel to a second direction; a plurality of first contact pads electrically connected to an edge of the first carbon nanotube layer and a plurality of second contact pads electrically connected to an edge of the second carbon nanotube layer; a processing unit sequentially receives first output signals from the plurality of first contact pads in a first period and sequentially receive second output signals from the plurality of second contact pads in a second period, the first output signals are voltage values of each one of the first contact pads and the second output signals are voltage values of each one of the second contact pads; wherein, the processing determines a position of an external force according to the first output signals and the second output signals from the plurality of first contact pads and the plurality of second contact pads; and wherein, the processing determines a strength of the external force according to slopes or shapes of signal distributions of the first output signals from the plurality of first contact pads and the second output signals from the plurality of second contact pads.