Measurement of Residual DC Voltage in the IPS-LCD by Light Minimum/Maximum Method

광 최소/최대법을 이용한 IPS-LCD의 잔류 DC 전압 측정

The residual DC properties in the in-plane switching (IFS) liquid crystal displays(LCDs) which have different concentrations of cynao NLCs and different resistivities of fluorine NLCs were studied. We also propose a new residual DC measurement method, named 'light minimum/maximum method'. We confirmed the precision of residual DC measurement by light minimum/maximum method compared with the flicker minimizing method and found that new measurement method of residual DC is better than that of the conventional flicker minimizing method since the resolution level of measurements is in 0.1V