大画面3次元ディスプレイを構成する3次元ピクセルモジュールの開発

概要

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A large-screen 3D display that is glass-free and has smooth motion parallax can be constructed with a 2D array of 3D pixels that generates high-density directional images. It is showed that 〜700 and 〜3,000 directional images should be displayed in different horizontal directions for display screen sizes of 10.0×7.5m and 20.0×7.5m, respectively. The complexity of wiring an array of 3D pixels that can display such a large number of images can be dramatically reduced by introducing a modular structure. A 3D pixel module, which is a 2D array of 3D pixels, consists of an array of modified 2D aligned light source arrays, an array of cylindrical lenses, and a control circuit. While a custom light source array is actually needed to display the number of images mentioned above, we used conventional LCD panels as light source arrays in this study. Although the number of directional images was thus limited, we were able to verify the operating princple of 3D pixels and demonstrate the feasibility of using conventional LCD panels. The prototype module was constructed using 4×2 LCD panels to obtain 8×4 light source arrays. The module consisted of 8×4 3D pixels and was designed to display 300 different directional images. We found that only 〜50 images could be distinguished because the LCD panels had considerable pixel crosstalk caused by the RGB delta pixel structure.
2006-06-01