Color-reflective dual-frequency cholesteric liquid crystal displays and their drive schemes

Feng Ching Lin*, Wei Lee

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

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.

Original languageEnglish
Article number112201
JournalApplied Physics Express
Volume4
Issue number11
DOIs
StatePublished - 1 Nov 2011

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