Polymer-stabilized optically isotropic liquid crystal exhibits a fairly large Kerr constant and has potential to become
next-wave display technology. The underlying physical mechanism is the Kerr-effect-induced isotropic-to-anisotropic
transition. Wavelength and temperature effect on the Kerr constant of optically isotropic liquid crystal composites are
investigated. Our experimental results indicate that as the wavelength or temperature increases, K decreases. The
proposed physical models fit very well with the experimental data.
Device physics and electro-optical properties of emerging polymer-stabilized blue-phase liquid crystal displays (BPLCDs)
are investigated. The novel protruded electrodes generate strong horizontal electric fields which penetrate deeply
into the bulk LC layer. As a result, the operating voltage is reduced from over 50V<sub>rms</sub> to ~10 V<sub>rms</sub>, which for the first time
enables the BP-LCDs to be addressed by amorphous silicon
thin-film-transistors (TFTs). Kerr constant effect from the
material side is also evaluated quantitatively. Widespread application of TFT BP-LCDs is foreseeable.