A Study on Residual DC in the IPS-LCD by Voltage-Transmittance Hysteresis Method on a Rubbed Polyimide Layer

러빙된 폴리이미드 층에서의 전압-투과율 히스테리시스법 이용한 IPS-LCD의 잔류 DC 전압 특성에 관한 연구

We investigated the residual DC in the in-plane switching (IPS)-liquid crystal display(LCD) by voltage-transmittance (V-T) hysteresis method. Several IPS-LCD which have different concentrations of cynao LCs and different resistivities of fluorine LCs were fabricated. We found that the residual DC voltage of the IPS-LCD was decreasing with increasing concentration of cyano LCs and increasing with decreasing specific resistivity of fluorine LC materials. The residual DC voltage property can be improved by low molecular weight and high polarity of cyano LC.