Abstract
Liquid crystal display (LCD) is known to have motion blur due to the slow response and sample-hold characteristics of the liquid crystal (LC). To alleviate the LCD motion blur, improving the LC response is the most fundamental solution. However, if the response time is shortened, then more frames are needed and hence frame rate up conversion (FRUC) should be used. In this paper, we study two FRUC methods. We compare the output signal qualities by studying the temporal and spatial profile of the two methods. We use the solution of Erickson-Leslie equation to derive the step response, in contrast to the existing literature where the resistor-capacitor (RC) approximation and uniform averaging function are used. The step response we derived is able to model not only the general trend of the rising and falling edges, but also the effects of different gray level transitions. Based on the step response, we analyze the two methods by comparing the observed signal in both the spatial and temporal domain.
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