Time-division multiplexing parallax barrier based on primary colors

Qu Zhang; Hideki Kakeya

doi:10.1117/12.2042313

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6 March 2014 Time-division multiplexing parallax barrier based on primary colors

Qu Zhang, Hideki Kakeya

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Proceedings Volume 9011, Stereoscopic Displays and Applications XXV; 90111F (2014) https://doi.org/10.1117/12.2042313
Event: IS&T/SPIE Electronic Imaging, 2014, San Francisco, California, United States

Abstract

4-view parallax barrier is considered to be a practical way to solve the viewing zone issue of conventional 2-view parallax barrier. To realize a flickerless 4-view system that provides full display resolution to each view, quadruple timedivision multiplexing with a refresh rate of 240 Hz is necessary. Since 240 Hz displays are not easily available yet at this moment, extra efforts are needed to reduce flickers when executing under a possible lower refresh rate. In our last work, we have managed to realize a prototype with less flickers under 120 Hz by introducing 1-pixel aperture and involving anaglyph into quadruple time-division multiplexing, while either stripe noise or crosstalk noise stands out. In this paper, we introduce a new type of time-division multiplexing parallax barrier based on primary colors, where the barrier pattern is laid like “red-green-blue-black (RGBK)”. Unlike other existing methods, changing the order of the element pixels in the barrier pattern will make a difference in this system. Among the possible alignments, “RGBK” is considered to be able to show less crosstalk while “RBGK” may show less stripe noise. We carried out a psychophysical experiment and found some positive results as expected, which shows that this new type of time-division multiplexing barrier shows more balanced images with stripe noise and crosstalk controlled at a relatively lower level at the same time.

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Qu Zhang and Hideki Kakeya "Time-division multiplexing parallax barrier based on primary colors", Proc. SPIE 9011, Stereoscopic Displays and Applications XXV, 90111F (6 March 2014); https://doi.org/10.1117/12.2042313

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