Surface-controlled patterned vertical alignment mode with reactive mesogen

Opt Express. 2009 Jun 8;17(12):10298-303. doi: 10.1364/oe.17.010298.

Abstract

We proposed a patterned vertical alignment (PVA) mode controlled by a modified surface with ultraviolet (UV) curable reactive mesogen (RM) mixed with vertical alignment material for a liquid crystal display (LCD) with fast response time. In the surface-controlled PVA (SC-PVA) mode, the RM monomers in the alignment layer are polymerized along the LC directors by UV exposure under an applied voltage. The polymerized RMs produce a pretilt against the substrate normal depending on the applied field direction in the patterned electrode configuration. In such SC-PVA mode, fast response time was achieved at whole grey levels with the predetermined rotational preference of the LC directors governed by the pretilt direction.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Computer-Aided Design
  • Electrodes*
  • Equipment Design
  • Equipment Failure Analysis
  • Lighting / instrumentation*
  • Liquid Crystals / chemistry*
  • Reproducibility of Results
  • Sensitivity and Specificity
  • Surface Properties
  • Ultraviolet Rays