A backlighting arrangement is for a head up display that presents a virtual image to a human driver of a motor vehicle. The arrangement includes a light source emitting light with a non-uniform brightness over a field of view of the human driver. A diffuser includes a surface through which the light emitted by the light source passes. The surface has a texture that varies with position on the surface. The texture scatters the light such that the brightness of the light over a field of view of the human driver is more uniform after passing through the diffuser at a given average brightness than it would be with a diffuser configured to scatter light independent of position after passing through the diffuser.
DIFFUSER TO IMPROVE UNIFORMITY OF HEAD-UP DISPLAY IMAGE BRIGHTNESS
2024-05-30
Patent
Electronic Resource
English
The study of the brightness uniformity of a diffuser in outdoors LCD with Monte Carlo simulation
British Library Conference Proceedings | 2003
|