A super multi-view display with small viewing zone tracking using directional backlight

Jin Miyazaki; Tomohiro Yendo

doi:10.1117/12.2082996

17 March 2015 A super multi-view display with small viewing zone tracking using directional backlight

Jin Miyazaki, Tomohiro Yendo

Author Affiliations +

Proceedings Volume 9391, Stereoscopic Displays and Applications XXVI; 939115 (2015) https://doi.org/10.1117/12.2082996
Event: SPIE/IS&T Electronic Imaging, 2015, San Francisco, California, United States

Abstract

A super multi-view display provides smooth motion parallax without special glasses, and it is expected that the observer is free from the visual fatigue caused by the accommodation-vergence conflict. However, a huge number of pixels are required on a display device because high-density rays are required for good quality images and each ray needs corresponding pixel. We have proposed a method to reduce the required number of pixels by limiting rays emitted to only around observer’s pupils. The display is based on the lenticular method. As stated above, the rays should be shot out to only around observer’s pupils. To do this, the lenticular lens of which viewing zone angle is narrowed is used and the lenticular lens is illuminated by directional light to suppress side lobes. The direction of directional light is changed to follow the observer’s pupil. In this paper, we constructed a prototype display and conducted an experiment. The experimental result confirmed that we could see image corresponding from each viewpoint by the change of the photographing images. In addition, it confirmed suppression of the side lobes by couldn’t see the image outside the viewing zone. By these results, we showed the effectiveness of the proposed method.

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Jin Miyazaki and Tomohiro Yendo "A super multi-view display with small viewing zone tracking using directional backlight", Proc. SPIE 9391, Stereoscopic Displays and Applications XXVI, 939115 (17 March 2015); https://doi.org/10.1117/12.2082996

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KEYWORDS

Lenticular lenses

LCDs

Prototyping

Projection systems

3D displays

Eye

Liquid crystals

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