Patent ID: 8344894

Claim:
Method to alert a drowsy driver condition upon a substantially transparent windscreen head up display of a vehicle, the method comprising: monitoring a sensor configured to observe an operator of the vehicle; determining the drowsy driver condition based upon the monitoring the sensor; and alerting the drowsy driver condition upon the substantially transparent windscreen head up display based upon the determining the drowsy driver condition; and wherein the alerting the drowsy driver condition upon the transparent windscreen head up display based upon the determining the drowsy driver condition comprises displaying a graphic selected to attract attention of the operator comprising one of a flashing graphic located at a gaze location of the operator, a pulsating graphic located at the gaze location of the operator, a graphic with increasing intensity, and a graphic with increasing persistence; and wherein the substantially transparent windscreen head up display comprises a display comprising one of light emitting particles or microstructures over a predefined region of the windscreen permitting luminescent display while permitting vision through the windscreen.