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Working principle of the proposed reflective display: (a) bright state at V = 0, and (b) black state at V > 0. To obtain narrow band reflection, the BPLC cell has surface alignment layers.
Reflective photo of (a) PS-BPLC cell-1 without polyimide and (b)TN cell; (c) measured transmittance and reflectance of three cells with different surface alignments.
Voltage-dependent reflection spectrum of (a) blue cell, peak wavelength λ0 = 477 nm; (b) green cell, λ0 = 514 nm; (c) red cell, λ0 = 634 nm. The insets are reflective microscope photos with crossed polarizers.
Measured VR curve of the green cell with left-handed circularly polarized (CP) and LP incident light.
Calculated polarization state of reflected light through measured data for a circularly polarized incident light (solid red line) and a linearly polarized light (blue dashed lines). x represents the absorption axis of the polarizer.
Concept of proposed 3D reflective display: the left pixel employs a left-handed chiral dopant and the right pixel employs a right-handed chiral dopant. (a) Photo taken with a left-handed circular polarizer, and (b) photo taken with a right-handed circular polarizer.
Viewing angle of the reflective display. Diffuser was laminated on top of the left side of the cell.
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