Hitoshi Mazaki

23.4L: Late‐News Paper: Comparison of Nematic Hybrid and Discotic Hybrid Films as Viewing Angle Compensator for NW‐TN‐LCDs

We compared the viewing angle performance of NW-TN-LCDs compensated with hybrid-aligned discotic (DH) and hybrid-aligned nematic (NH) films. We find that the DH films give superior contrast over wider viewing angles than the NH films, but that the NH films show less color shift at wider angles with better gray scale stability. We conclude that DH films are most suitable for data viewing in notebook computer displays and desktop monitors, whereas NH films are more suitable for viewing natural images in television and multimedia applications.

51.1: Invited Paper: Viewing‐Angle Compensation of TN‐ and ECB‐LCD Modes by Using a Rod‐Like Liquid Crystalline Polymer Film

We have developed a liquid crystalline retardation film technology by using a rod-like liquid crystalline polymer (LCP) for various LCD modes. In particular, considerable improvements in viewing angle performance have been achieved for the Twisted Nematic (TN) and the transmissive/transflective Electrically Controlled Birefringence (ECB) modes by using hybrid aligned nematic film ‘NH Film’.

34.2: Viewing-Angle Compensation of IPS and Circularly Polarized VA-LCDs Using a Novel Ultra-Thin Homeotropically Aligned Liquid-Crystalline Polymer Film

We have developed a novel ultra-thin homeotropically aligned liquid crystalline polymer (LCP) film called “NV film”. NV film allows In-Plane-Switching (IPS) and Circularly-Polarized Vertical-Alignment (CPVA) LCDs to have excellent viewing angle performance with only a slight increase in the total thickness just by attaching the film to the panel.