| Summary: | 碩士 === 國立臺灣大學 === 光電工程學研究所 === 105 === Human beings always pursuit the better image quality in display technology, hope that the image on the display can be the same as we seen in natural environment. Due to the parallax barrier technique can be combined with the curved screen theoretically, this thesis proposes “cylindrical barrier-type autostereoscopic 3D display.” In this design, viewer can see the 3D image from all direction surrounded the display. Thus, this display provides realer 3D image in the inner space of the screen.
Previous researches apply the design rules of parallax barrier in the flat display on the curved case. However, the viewing zones in this design are limited in area. Furthermore, the curvature of cylindrical display is usually lower than common curved screen. For this reason, this thesis proposes the new design rules specially for parallax barrier in cylindrical display, which provide best viewing zone area size. When several convex displays can connect and form a cylindrical display, it will cause position shift and area shrink in viewing zones. Thus, in this research, we provide a new subpixel arrangement with rotational symmetry, and the simulation result shows the viewing zones also distribute with rotational symmetry.
In this research, a new calculation method for luminance of subpixels is provided, and it dramatically reduce the simulation time. Benefit by this method, parameters in our system can be investigate completely, including the thickness of parallax barrier, the refraction index of screen glass, the optimal viewing distance and the radius of screen. In each of the parameter settings, we optimize the aperture ratios of subpixel and parallax barrier. Consequently, the viewing zones with larger area than the previous research are obtained.
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