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Touch sensor










Image Number 7 for United States Patent #8466814.

A touch sensor includes a Printed Circuit Board (PCB) that is transparent with respect to light in a visible wavelength band, an upper clad and a lower clad formed on the top face and the bottom face of the PCB, a light source for emitting light to a side of the PCB, and a key top layer disposed on the upper clad.








 
 
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