Light Scattering in Holographic Polymer Dispersed Liquid Crystals

2021 ◽  
Author(s):  
Ben E. Pelleg
Keyword(s):  
Liquid Crystals ◽  
Light Scattering ◽  
Polymer Dispersed Liquid Crystals ◽  
Polymer Dispersed

scholarly journals Low-Threshold-Voltage and Electrically Switchable Polarization-Selective Scattering Mode Liquid Crystal Light Shutters

Polymers ◽  
2018 ◽  
Vol 10 (12) ◽  
pp. 1354 ◽  
Author(s):  
Zhe-Yung Liang ◽  
Ching-Yen Tu ◽  
Tsung-Hsun Yang ◽  
Cheng-Kai Liu ◽  
Ko-Ting Cheng
Keyword(s):  
Liquid Crystals ◽  
Light Scattering ◽  
Threshold Voltage ◽  
Weight Ratio ◽  
Surface Anchoring ◽  
Polymer Dispersed Liquid Crystals ◽  
Polymer Dispersed ◽  
Low Threshold ◽  
Switchable Polarization ◽  
The Cost

Low-threshold-voltage (Vth) and electrically switchable, polarization-selective scattering mode light shutters (PSMLSs) using polymer-dispersed liquid crystals (PDLCs) are demonstrated in this work. The optimized weight ratio of the nematic liquid crystals (LCs) to the adopted monomer (NBA107, Norland Optics) in the low-Vth PDLCs based on NBA107 is 7:3, [7:3]-PDLCsNBA107. The properties of the low-Vth PDLCsNBA107, such as light-scattering performance, initial transmission, Vth, and droplet size were investigated. Experiment results show that the surface anchoring (threshold-voltage) of NBA107 is weaker (lower) than or equal to that of the common NOA65. The cost is that the response time of the proposed PDLCsNBA107 is relatively long. A method to reduce the decay time, which can be applied to all other PDLC devices, will be elucidated. In addition to the low Vth of the proposed PDLCsNBA107, the operation voltage (~6 Vrms) to approach the maximum transmission is relatively low in a 7 μm-thick PDLCsNBA107 cell. Moreover, the polarization-selective light-scattering performances of the proposed PSMLSs based on the [7:3]-PDLCsNBA107, mainly driven by in-plane and vertical fields, are also demonstrated.

Light Scattering Characteristics of Newly Designed Polymer Dispersed Liquid Crystals Films

2009 ◽  
Vol 513 (1) ◽  
pp. 38-44 ◽  
Author(s):  
Kee-Jeong Yang ◽  
Shi-Joon Sung ◽  
Byeong-Dae Choi ◽  
Jin-Kyu Kang
Keyword(s):  
Liquid Crystals ◽  
Light Scattering ◽  
Polymer Dispersed Liquid Crystals ◽  
Polymer Dispersed

scholarly journals Polymer dispersed liquid crystals with electrically controlled light scattering in the visible and near-infrared ranges

2020 ◽  
Vol 10 (12) ◽  
pp. 3030
Author(s):  
E. P. Pozhidaev ◽  
A. V. Kaznacheev ◽  
S. I. Torgova ◽  
V. V. Kesaev ◽  
V. A. Barbashov
Keyword(s):  
Liquid Crystals ◽  
Light Scattering ◽  
Near Infrared ◽  
Polymer Dispersed Liquid Crystals ◽  
Polymer Dispersed
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