Touch sensitive projection screen

摘要

An optical device and a projection system incorporating same is disclosed. The optical device includes a light management element. The light management element includes an electrically conductive light absorber that is disposed in a display area for controlling a viewing angle of light transmitted through the display area. The conductive light absorber is configured to generate a signal in response to a touch in the display area. The signal is capable of being used to determine information related to the touch.

主权项

1. An optical device comprising a light management element disposed in a display area for controlling a viewing angle of light transmitted through the display area, the light management element comprising a medium comprising a plurality of grooves, the grooves being uniformly filled with a light absorbing electrically conductive material uniformly light absorbing and electrically conductive throughout the material, the filled grooves configured to generate a signal in response to a touch in the display area, the signal capable of being used to determine information related to the touch.