香港大学申请研究生

Four new bistable twisted nematic liquid crystal display (BTN-LCD) modes with no n crossed polarizers are developed for the first time. Most of them present high contrast ratio and high transmittance with high stability; some display between black and white states, the performance reaches the level of twist nematic liqu id crystal display device. They are better than those modes using crossed polari zers presented before.

Measuring system and method as well as data processing of the laser intensity modulation method(LIMM) have been set up.The polarization distribution and the process of depolarization for VDF/TrFE ferroelectric copolymers are investigated by LIMM.The pyroe