Dynamic High Contrast Reflective Coloration From Responsive Polymer/Cholesteric Liquid Crystal Architectures
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چکیده
منابع مشابه
Bragg reflection from cholesteric liquid crystals.
In this paper we discuss the optical reflective properties of single and multidomain cholesteric liquid crystals both experimentally and theoretically. The multidomain system has been prepared by dispersing a low concentration of polymer in a cholesteric liquid crystal. This results in a (passive) bistable colorful reflective display. Here we discuss the role of the polymer in altering the refl...
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We report on the formulation and electrical control of the position and bandwidth of reflective bandpass filters prepared from cholesteric liquid crystal (CLC) in the infrared (3-5 μm). These filters are prepared from alignment cells employing infrared transparent electrodes and substrates. The optical nature of the electrodes is shown to strongly influence the resulting transmission of the ban...
متن کاملPolymer-Stabilized Cholesteric Liquid Crystal for Polarization-Independent Variable Optical Attenuator
A reflective-type polymer-stabilized cholesteric liquid crystal (PSCLC) cell was demonstrated at 1⁄4 1550 nm laser wavelength. It showed a high attenuation range ( 30 dB), a low operating voltage ( 12Vrms), a highly efficient polarizationindependent behavior and flat wavelength dependence in the range of 1525–1575 nm. The combined effects of curing temperature, chiral dopant, and monomer concen...
متن کاملBlack-white Reflective Liquid Crystal Display Prepared with Two Color Reflective Layers
Reflective cholesteric liquid crystal displays (Ch-LCD) with bistability are very attractive because of their excellent readability, low power consumption with image memory, high reflectivity, high contrast ratio at a wide viewing angle, and a low manufacturing cost[1]. Cholesteric liquid crystal displays have several unique features suitable for mobile displays, public information displays, si...
متن کاملHybrid anchoring for a color-reflective dual- frequency cholesteric liquid crystal device switched by low voltages
Cholesteric liquid crystal (CLC) materials used in electro-optical (EO) devices are characterized by high operating voltage and slow response speed, which hinders their further development in display applications. Dual-frequency CLCs (DFCLCs) can solve the problem of slow bistable transition, but the operating voltage is still high, especially in color-reflective DFCLC cells. Here we report a s...
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تاریخ انتشار 2016