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1. (WO2013110779) AUTOSTEREOSCOPIC DISPLAY AND METHOD OF DISPLAYING A 3D IMAGE

Pub. No.:    WO/2013/110779    International Application No.:    PCT/EP2013/051487
Publication Date: Fri Aug 02 01:59:59 CEST 2013 International Filing Date: Sat Jan 26 00:59:59 CET 2013
IPC: H04N 13/04
H04N 13/00
Applicants: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
Inventors: DE LA BARRÉ, René
JURK, Silvio
Title: AUTOSTEREOSCOPIC DISPLAY AND METHOD OF DISPLAYING A 3D IMAGE
Abstract:
The invention relates to an autostereoscopic display for simultaneously displaying more than two different images, comprising a pixel matrix (11) having a multitude of pixels (15) distributed over different subgroups; an optical element (12) which is arranged in front of or behind the pixel matrix (11), which has a grid-like structure and imposes a respective defined propagation direction on light emanating or transmitted from the pixels (15) so that a plurality of viewing zones (16) laterally offset relative to one another is defined so that each of the viewing zones (16) is associated with exactly one of the subsets and so that the light emanating or transmitted from each of the subgroups of pixels (15) is directed into the viewing zone (16) associated with this subset; and a control unit (13) for controlling the pixel matrix (11) in dependence on image data (14) defining a 3D image. In this respect, the control unit (13) is configured to carry out the respective following steps for controlling the pixel matrix (11) for an autostereoscopic viewing of the 3D image from a viewing distance (D) differing from the nominal spacing (Dn) in front of the display for each of a plurality of strips of pixels (15): - determining a value of a location coordinate (x); - determining intensity values which are defined by the image data (14) for an image strip corresponding to this strip of a view of the 3D image which corresponds to a direction of gaze from a position defined by the named value; and - controlling the pixels (15) of this strip using the intensity values determined in this manner.