The method allows the assessment of that portion of the film responsible for aligning liquid crystals, and provides an indication of the efficacy of alignment.
The alignment of liquid crystalline molecules at the interface between liquid crystal and polyimide surface was investigated on the basis of an optical second-harmonic generation method.
We demonstrate that use of the aligned ultrathin SWCNT film for a unidirectional alignment of liquid crystal.
It was confirmed for the first time that a uniform alignment of liquid crystalline molecules with a pretilt of about 10° was achieved by simply flowing the liquid crystal on the polyimide-coated substrate surface which produced no pretilt by a standard rubbing treatment.
To this end the magnetic alignment of liquid crystal photo-monomers was investigated with dielectric measurements.
Sharp Japan today announced [press release in English] the development of a new method that makes it possible to control the alignment of liquid crystal molecules in LCD screens with high precision.
Due to the rubbing methods controlling the alignment of liquid crystals, the polarization of the emitted light is influenced by the rubbing direction.
It is found that the alignment of liquid crystals influences the polarization of the forward random lasers, as shown in Fig. 5.
However, anchor force will make the alignment of liquid crystal molecules along the orientation direction near the alignment layer, and the light paths can form different loops, as previously mentioned.
Structural color filters that can be tuned by adjusting external factors can manipulate colors by controlling factors such as polarization angle of incident light, alignment of liquid crystals (LCs) [32 35], mechanical strain [36 39] and chemical state [40 43].
