New control method of interface anchoring energy and applications of high transmittance IPS-LCDs

Abstract

Recently, high transmittance IPS-LCD with zero-azimuth anchoring layers formed on the electrodes was suggested (OZ-IPS). But, one of the issues in OZ-IPS is very slow response, which becomes a big barrier for mass production. So, we developed a new method to control interface anchoring energy by Polymer-Sustained-Alignment (PSA) technology. The zero-azimuth anchoring layers were formed by aligned photoreactive-PI layer with photo-radical generation units and mask exposure technique. We succeeded in making OZ-IPS-cells, and controlling both transmittance and response. And we found that it was possible to form different alignment states in LC-cell by this technique.