Study of the Mechanism of Dynamic Scattering in Nematic Liquid Crystals Suitable for Display Applications.
Abstract
Several new stable nematic liquid crystals were synthesized for possible use in dynamic scattering, and the threshold for scattering in an azoxy-type liquid crystal was lowered significantly by the use of charge-transfer acceptors as dopants. The effect of large changes in dielectric anisotropy on twisted nematic devices has been examined, and significant improvements in the decay times for this effect were achieved by using a two-frequency addressing mode. Studies on the electric field-induced cholesteric-nematic transition have shown that a non-uniform distortion of the cholesteric helix occurs under certain conditions. An o-hydroxy substituted analog (OHMBBA) of the room temperature nematic N-(p-methoxybenzylidene)-p-n-butylaniline (MBBA) was prepared. Two broad temperature range binary systems were also examined consisting of OHMBBA mixed with N-(p-ethoxybenzylidene)-p-n-butylaniline (EBBA), and OHMBBA mixed with N-(p-methoxybenzylidene)-p-n-pentylaniline (MPBA).
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1974
- Accession Number
- ADA004201
Entities
People
- Arnold I. Baise
- Mortimer M. Labes
Organizations
- Temple University