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Autostereoscopic display and method for displaying stereoscopic images

 
: Barre, R. de la; Jurk, S.; Leiner, U.

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Frontpage ()

WO 2010EP07283 A1: 20101124
WO 2012069072 A1: 20120531
English
Patent, Electronic Publication
Fraunhofer HHI ()

Abstract
The invention relates to an autostereoscopic display for simultaneously displaying a plurality of more than two views, each of the views being visible from one of a plurality of viewing zones (21, 22, 23, 24, 25, 26), these viewing zones (21, 22, 23, 24, 25, 26) forming a connected observation area (20) in front of the display, the display comprising a pixel array (11), an optical grating (12), a tracking device (13) and a control unit (14), wherein the pixel array (11) comprises a plurality of subsets of pixels (1', 2', 3', 4 ', 5 ', 6'), each of the subsets corresponding to one of the viewing zones (21, 22, 23, 24, 25, 26), wherein the optical grating (12) can be laterally shifted by varying the optical grating (12), and wherein the control unit (14) is configured for varying the grating (12) depending on a tracking signal (15) received from the tracking device (13); and for activating the pixels (1', 2', 3', 4', 5', 61) de not pending on image data (16) and on the tracking signal (15), the control unit (14) being programmed for causing, under certain conditions, the optical grating (12) to be varied such that the observation area (20) is shifted together with the viewing zones (21, 22, 23, 24, 25, 26) into a lateral direction and for simultaneously changing an activation of the pixels (1', 2', 3 ', 4 ', 5 ', 6') by exchanging the images or image sequences reproduced by the pixels (1', 2', 3', 4', 5', 6'). The invention relates, furthermore, to a corresponding method for displaying stereoscopic images.

: http://publica.fraunhofer.de/documents/N-214477.html