Display device for displaying image information conveying depth information

An instrument cluster for a vehicle comprising:

• at least one display device for displaying images conveying depth information, wherein the at least one display device includes:
• a first display unit for representing first image information on a first screen, the first display unit having:
• a holographic optical element, HOE provided on the first screen, and
• a first light source for providing light for illuminating the first screen;
• a second display unit for representing second image information, the second display unit having:
• a second light source for providing light with a plurality of predetermined discrete wavelengths for creating the second image information, and
• a second screen provided in parallel or oriented at an angle relative to the first screen in order to project the second image information onto the first screen and thereby generate a virtual image corresponding to the second image information behind the first screen,
• wherein the HOE is reflective for the plurality of predetermined discrete wavelengths and transmissive for other wavelengths of the visible spectrum, such that the first image information and the second image information are combined in order to convey depth information.