Preprint Article Version 1 This version is not peer-reviewed

Time-Sequential Working Wavelength-Selective Filter for Flat Autostereoscopic Displays

Version 1 : Received: 1 February 2017 / Approved: 1 February 2017 / Online: 1 February 2017 (16:52:44 CET)

A peer-reviewed article of this Preprint also exists.

Barré, R.; Bartmann, R.; Jurk, S.; Kuhlmey, M.; Duckstein, B.; Seeboth, A.; Lötzsch, D.; Rabe, C.; Frach, P.; Bartzsch, H.; Gittner, M.; Bruns, S.; Schottner, G.; Fischer, J. Time-Sequential Working Wavelength-Selective Filter for Flat Autostereoscopic Displays. Appl. Sci. 2017, 7, 194. Barré, R.; Bartmann, R.; Jurk, S.; Kuhlmey, M.; Duckstein, B.; Seeboth, A.; Lötzsch, D.; Rabe, C.; Frach, P.; Bartzsch, H.; Gittner, M.; Bruns, S.; Schottner, G.; Fischer, J. Time-Sequential Working Wavelength-Selective Filter for Flat Autostereoscopic Displays. Appl. Sci. 2017, 7, 194.

Journal reference: Appl. Sci. 2017, 7, 194
DOI: 10.3390/app7020194

Abstract

A time-sequential working, spatially multiplexed autostereoscopic 3D display design consisting of a fast switchable RGB-color filter array is presented. The wavelength-selective filter barrier emits the light from a display over a larger active area than common autostereoscopic barrier displays. An optical modelling of wavelength-selective barriers has been used for instance to calculate the light ray distribution properties of that arrangement. To find well working display designs, automated searches by simulation and computational evaluation has been proceeded. Wavelength-selective filter barrier arrangements exhibit characteristics different from common barrier displays with similar barrier pitch and ascent. In particular, these constructions show strong angular luminance dependency under barrier inclination specified by correspondent slant angle. In time-sequential implementation it is important to avoid that quick eye or eyelid movement lead to visible color artifacts. In the millisecond regime tunable liquid crystal Fabry-Pérot color filters for the colors red, green and blue are presented. They consist of a sub-micrometer thick nematic layer sandwiched between dielectric mirrors and ITO-electrodes. These cells shall switch narrow-banding light of red, green or blue. An array for a glasses-free 3D display has to be equipped with several thousand switchable filter elements having different color apertures. The newly introduced design is usable as a multi user display as well as a single user system with user adaptive control.

Subject Areas

fast switchable wavelength-selective elements, autostereoscopic image splitter, color filter barrier array, Fabry-Pérot color filter, on-off filter mode

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