S. Okutani et al., ANALYSIS OF LIQUID-CRYSTAL ORIENTATION AT INTERFACE BETWEEN LIQUID-CRYSTAL AND ALIGNMENT FILM BY TOTAL-REFLECTION ELLIPSOMETRY, JPN J A P 2, 37(5B), 1998, pp. 600-602
The total reflection ellipsometry (TRE) method is proposed to investig
ate the behavior of the liquid crystal (LC) molecules at the interface
between LC and an alignment film. Theoretical analysis indicated that
the TRE method is useful for studying: the behavior of interfacial LC
molecules. From the numerical results of the TRE method, it was found
that the phase difference versus applied voltage depends on the polar
anchoring strength. The TRE method is sensitive enough to estimate th
e polar anchoring strength of LC cells.