Patent ID: 8390546

Claim:
A method for manufacturing a display device, comprising: optically coupling a light guide to a light source; placing a front plate generally parallel to the light guide, wherein the front plate comprises a first electrode layer disposed on an internal side of the front plate facing a first side of the light guide; disposing a refractive layer and a second electrode layer on a second side of the light guide such that the refractive layer is positioned between the second electrode layer and the light guide; and arranging a moveable element having a third electrode layer between the light guide and the front plate; wherein the first, second, and third electrode layers are configured to enable the moveable element to be moved into and out of contact with the light guide; and wherein disposing the refractive layer and the second electrode layer on the second side of the light guide comprises depositing the refractive layer on the light guide and depositing the second electrode layer on the refractive layer.