Image display unit for displaying image within predefined display area in head-up-display utilized in passenger car, has light source arranged such that light sent by source illuminates diffuser and screen to display image in display area

摘要

The unit (200) has a light source (310) emitting laser light (320), and a holographic diffuser (340) comprising different radiation characteristics (343, 347) at locations (342, 345), respectively. A liquid crystal-image screen (350) outputs image, where the light source is arranged such that the laser light sent by the light source illuminates or radiates the diffuser and the image screen for displaying the image in a predefined display area. The diffuser is arranged with respect to a beam path of the laser light between the light source and the image screen. Independent claims are also included for the following: (1) an image display unit (2) a computer program product with program code unit for executing and controlling a method for displaying image within predefined display area.