Evaluation of Azimuthal Anchoring Energy for LC Device with Low and High Pretilt Angles Equipped with Color Filter

摘要

In this study, we theoretically investigated an influence of the existence of a color filter on the determination of the azimuthal anchoring energy based on the renormalized transmission ellipsometry (RTE). The azimuthal anchoring energy using a twisted nematic (TN) liquid crystal (LC) cells equipped with/without a color filter were evaluated by means of RTE. The result indicated no influence in the obtained ellipsometric parameters such as the phase difference Δ and the angle of amplitude ratio Ψ, when a color filter was an isotropic medium. Furthermore, almost the same azimuthal anchoring energy between the TN LC cells equipped with/without a color filter can be experimentally obtained in the same manner as RTE. We presented a possibility for the determination of the azimuthal anchoring energy for the commercial liquid crystal display (LCD) products.