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We propose a color-reflective dual-frequency (DF) cholesteric liquid crystal display (CLCD) characterized by a short switching time of merely milliseconds directly from the focal conic (FC) texture to the planar (P) state. Three distinct cholesteric pitches are prepared such that the Bragg reflections take place in red, green, and blue in order to realize a color pixel. The cholesteric cells can be directly switched from the bright P state to the light-scattering FC state by a low-frequency voltage pulse and reversibly by a high-frequency pulse. We present a drive scheme for addressing the DF-CLCDs.
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Lin et al. (2011) studied this question.
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