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Open Access Portrait and landscape mode convertible stereoscopic display using parallax barrier

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We propose a tablet type stereoscopic display. It features moire free and low crosstalk ratio. The proposed system consists of parallax barriers, a tablet type liquid crystal display (LCD) and stereo cameras. A tablet type display has two display modes, portrait and landscape. It is necessary to realize same viewing distance both portrait and landscape modes. Therefore, it is difficult to observe high quality stereoscopic image by using tablet type display. In proposed system, the same parallax barriers are used both portrait and landscape modes. Therefore, viewing distance of the system is constant regardless of whether the LCD is portrait or landscape.

We constructed the prototype system to verify the effectiveness of the proposed system. We used 15.6 inch 4K display as an LCD for tablet. By realizing new stereoscopic image arrangement that was different from between in portrait and landscape modes, we can see stereoscopic images with the slanted barriers with the same specifications. We confirmed that viewing distance is constantly 207.375 mm and moire patterns are not generated on its image. Additionally, max crosstalk ratio is 6.56 % at portrait mode and 14.00 % at landscape mode.
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Keywords: MOIRE FREE; PARALLAX BARRIER; PORTRAIT AND LANDSCAPE MODE; STEREOSCOPIC DISPLAY; TABLET TYPE DISPLAY

Document Type: Research Article

Publication date: January 1, 2017

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