Abstract
Stereoscopic computer displays create a 3-D image by alternating two
separate images for each of the viewer's eyes. Field-sequential viewing systems
supply each eye with the appropriate image by blocking the wrong image for
the wrong eye. In our work, we have developed a new mode of operation of a
liquid crystal shutter that provides for highly effective blockage of undesired
images when the screen is viewed in all viewing directions and eliminates
color shifts associated with long turn-off times. The goal was achieved by
using a π-cell filled
with low-rotational-viscosity and high-birefringence fluid and additional
negative birefringence films with splay optic axis distribution. The shutter
demonstrates a contrast ratio higher than 800:1 for head-on viewing and 10:1
in the viewing cone of about 45°. The relaxation time of the shutter does not exceed 2 ms and is
the same for all three primary colors.
© 2007 IEEE
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