| 摘要 |
An alternative PSM, including: a first transparent region in 0 degree phase, formed on the surface of a transparent substrate; and a second transparent region in 180 degree phase, constructed of a concave portion of the transparent substrate. The first transparent region and the second transparent region are alternatively arranged. A third transparent region in 85-95 degree phase, constructed of a translucent layer, is formed on the border between the first transparent region and the second transparent region. The third transparent region in 85-95 degree phase used as a light intensity buffer so as to effectively cancel phase conflict.
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