Extended Kerr effect of polymer-stabilized blue-phase liquid crystals
نویسندگان
چکیده
Electric-field-induced birefringence of a polymer-stabilized blue-phase liquid crystal BPLC is investigated. In the low field region, conventional Kerr effect holds. As the electric field increases, the induced birefringence gradually saturates and deviates from Kerr effect. An exponential convergence model, called extended Kerr effect, is proposed to fit the experimental data. Good agreement between experiment and model is obtained. This extended Kerr effect will make a significant impact to the optimization of emerging BPLC display devices. © 2010 American Institute of Physics. doi:10.1063/1.3318288
منابع مشابه
Extended Kerr effect in a polymer-stabilized blue-phase liquid crystal composite
Abstract As the electric field increases, the induced birefringence of a polymer-stabilized blue-phase liquid crystal gradually deviates from the conventional Kerr effect and finally saturates. A new convergence model, named extended Kerr effect, is proposed to explain this saturation phenomenon. This model will give a more accurate account on the electro-optic effect of the emerging bluephase ...
متن کاملDielectric dispersion on the Kerr constant of blue phase liquid crystals
Dielectric dispersions on the Kerr constant of two polymer-stabilized blue phase liquid crystals (BPLCs) are investigated. An extended Cole-Cole model is proposed to fit the experimental results and good agreement is obtained. As the electric field frequency increases, Kerr constant decreases and the associated dielectric heating effect gradually increases. These results will undoubtedly affect...
متن کاملPolymer-stabilized optically isotropic liquid crystals for next-generation display and photonics applications
Polymer-stabilized optically isotropic liquid crystals, including blue phases, are emerging as a strong contender for next-generation display technology because they exhibit some revolutionary features such as no need for surface alignment, submillisecond response time, isotropic dark state, and cell gap insensitivity. The basic material properties, including electric field-induced birefringenc...
متن کاملElectro-optical properties of photochemically stable polymer-stabilized blue-phase material
Articles you may be interested in Dynamic response of a polymer-stabilized blue-phase liquid crystal Electro-optics of polymer-stabilized blue phase liquid crystal displays Appl. Reversible optical control of transmittance in polymer/liquid crystal composite films by photoinduced phase transition J. Polymer-stabilized blue-phase liquid crystal (BPLC) comprising fluorinated compounds with high r...
متن کاملDiluter Effects on Large Dielectric Anisotropy Blue Phase Liquid Crystals
We have investigated diluter effects on the Debye relaxation frequency, and electro-optics of polymer-stabilized blue phase liquid crystals (BPLC). The relaxation frequency can be increased by adding a small amount of diluters, which benefits high frequency operation of BPLC. Some diluters significantly decrease the BPLC response time while maintaining similar Kerr constant. Author
متن کامل