Patent ID: 8682030

Claim:
An interactive display system, comprising: a projector configured to project visible light; a display screen configured to display an image projected by the projector, the display screen comprising a retroreflective layer, and a diffuser layer covering the retroreflective layer, the diffuser layer being configured to diffusely reflect a first portion of the visible light incident on the diffuser layer from the projector such that a second portion of the visible light passes through the diffuser layer and is reflected by the retroreflective layer back through the diffuser layer; a camera positioned to capture images of the display screen from a location at which the camera receives visible light from the projector reflected by the retroreflective layer; a logic subsystem; and a data storage subsystem storing instructions executable by the logic subsystem to acquire images via the camera and to identify, via the images, a user gesture performed between the projector and the display screen.