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Cell fabrication process of the LSH cell (a) and noncontact 3D measurement of a hole which exhibits the hole size and depth (b).
Schematic cell structures of the LSH cell, where P and A indicate the polarizer and analyzer, respectively.
LC cell textures in cylindrical holes observed under polarizing microscopy with increasing voltage.
Voltage-dependent optical transmission curve.
Calculated transmittance at several grey levels while rotating the cell under crossed polarizers explaining the transmission change in a circular hole.
Schematic LC orientation in a circular hole.
Measured iso-luminance curves when the transmittance at normal direction is in mid-gray and white state.
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