Abstract
A reflective cholesterol liquid crystal (CLC) display with a
wide viewing angle is demonstrated using the phase-separated
composite film (PSCOF) method. The PSCOF-based CLC is formed by
periodic and gradient UV illumination, slow polymerization and phase
separation of the LC and prepolymer mixture. The helical axis of CLC
is aligned normal to the protrusion of the PSCOF structure, and the
multi-domain CLC structure can provides a wide viewing angle and low
color shift. The conformation of PSCOF was also verified by AFM and
SEM. The multi-domain PSCOF-based CLC display is simple to fabricate
and suitable for use in a low-temperature flexible plastic
process.
© 2011 IEEE
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