Phase-field model for elastocapillary flows of liquid crystals

A phase-field-crystal model for liquid crystals.

On the basis of static and dynamical density functional theory, a phase-field-crystal model is derived which involves both the translational density and the orientational degree of ordering as well as a local director field. The model exhibits stable isotropic, nematic, smectic A, columnar, plastic-crystalline and orientationally ordered crystalline phases. As far as the dynamics is concerned, ...

Derivation of a three-dimensional phase-field-crystal model for liquid crystals from density functional theory.

Using a generalized order-parameter gradient expansion within density functional theory, we derive a phase-field-crystal model for liquid crystals composed of apolar particles in three spatial dimensions. Both the translational density and the orientational direction and ordering are included as order parameters. Different terms involving gradients in the order parameters in the resulting free-...

Electric field-induced monodomain blue phase liquid crystals

Field-induced phase transitions in antiferroelectric liquid crystals.

A theoretical study is made of the process by which an antiferroelectric smectic liquid crystal undergoes a field-induced transition to ferroelectric alignment. We find that for cells of moderate thickness the initial departure from antiferroelectric alignment occurs as a continuous Fréedericksz transition. The following transition from partial alignment to complete ferroelectric ordering may o...

Blue-Phase Liquid Crystals for Projection Displays

A projection display using blue-phase liquid crystal (BPLC) is proposed. The fast-response BPLC enables field sequential projection display with suppressed color breakup. Methods for reducing the operating voltage are also discussed. Author