Illumination device with metalized light-turning features

摘要

This disclosure provides systems, methods and apparatus for a front illumination device with metalized light-turning features. In one aspect, an illumination device with integrated touch sensor capability includes a light guide having a metalized light-turning feature and an electrode system for sensing changes to the capacitance between electrodes in the electrode system induced by the proximity of an electrically conductive body, such as a human finger. The metalized light-turning features may be electrically connected to and/or part of the electrode system.

主权项

1. An illumination device with integrated touch-sensing capability, comprising:
a light guide having a plurality of light-turning features defined by recesses in a surface of the light guide; a plurality of spaced-apart conductors, individual ones of the plurality of conductors residing on and extending into a corresponding one of the recesses without extending into an immediately neighboring recess; and touch-sensing electronics capable of sensing a change to an electric field of a conductor of the plurality of conductors.