Patent ID: 8830141

Claim:
A substantially transparent windscreen head-up display of a vehicle configured to display graphical images from a light source within the vehicle, the windscreen head-up display comprising multiple layers including: an outer layer comprising a transparent substrate configured on the exterior of the vehicle; an inner ultraviolet anti-reflective layer configured on the interior of the vehicle, the inner ultraviolet anti-reflective layer comprising a plurality of ultraviolet anti-reflective sub layers configured to refract ultraviolet light received from the light source without purposely reflecting any portion of the received ultraviolet light back toward the light source, wherein an index of refraction is attenuated from an outermost ultraviolet anti-reflective sub layer of the inner ultraviolet anti-reflective layer to an innermost ultraviolet anti-reflective sub layer of the inner ultraviolet anti-reflective layer, and wherein the ultraviolet light from the light source within the interior of the vehicle is sequentially refracted by the plurality of ultraviolet anti-reflective sub layers beginning at the outermost ultraviolet anti-reflective sub layer adjacent to the interior of the vehicle and ending at the innermost ultraviolet anti-reflective sub layer; a second transparent substrate layer disposed between the inner ultraviolet anti-reflective layer and the outer layer and configured to receive the refracted ultraviolet light exiting the plurality of sub layers, the second transparent substrate layer comprising light emitting material, wherein the light emitting material emits visible light in response to absorption of the refracted ultraviolet light exiting each sub layer of the inner ultraviolet anti-reflective layer from the light source, and wherein the light emitting material comprises a plurality of light emitting particles.