Electro-optical Characteristics of Twisted Nematic (TN)-Liquid Crystal Display (LCD) on a Polyimide Surface Exposed to an Ion Beam (IB) with New Type Equipment

Abstract

We studied liquid crystal (LC) alignment with ion beam (IB) on polyimide and electro-optical characteristics of twisted nematic (TN)-liquid crystal display (LCD) on the polyimide surface using obliquely ion beam (IB) exposure with new IB type equipment (DuoPIGatron type ion gun). A good uniform alignment of the nematic liquid crystal (NLC) alignment with the ion beam exposure on the polyimide surface was observed. In addition, it can be achieved the good EO properties of the ion-beam-aligned TN-LCD on polyimide surface. Also the EO characteristics of the ion-beam-aligned TN-LCD on a polyimide (PI) surface with ion beam exposure using new type IB equipment is almost the same as that of ion-beam-aligned TN-LCD on a polyimide (PI) surface with ion beam exposure using Kaufman-type Ar ion gun.

Keywords:

• alignment
• DuoPIGatron
• ion beam
• NLC
• polyimide
• response time

Acknowledgments

This work was supported by National Research Laboratory program (M1-0412-00-0008) and by the Ministry of Information & Communications of Korea under the Information Technology Research Center (ITRC) Program.