Patent ID: 9389730
Filing Date: 2016-07-12
CPC Classification: G06F

Claim Text:
1. A method for detecting touch on a display, comprising: providing a display, a light pulse receiver, an elongated light guide below an edge of the display, the light guide including an elongated outer surface portion, an elongated scatterer strip inside the light guide, and an exit surface coupled to the light pulse receiver, and a reflective strip, separate from the light guide, mounted along the edge of the display above the light guide; transmitting light pulses over the display and into the light guide through the elongated outer surface portion via the reflective strip; scattering, by the scatterer strip, the light pulses inside the light guide, such that a portion of the scattered light pulses arrives at the exit surface; and determining a location of an object touching the display that partially blocks the transmitted light pulses, based on outputs of the light pulse receiver.