A Fresnel Phase Zone Plate of Polymer-Network Stabilized Liquid Crystals

1999 ◽  
Vol 30 (1) ◽  
pp. 316
Author(s):  
H. W. Ren ◽  
Z. H. Ling ◽  
X. M. Huang
Keyword(s):  
Liquid Crystals ◽  
Polymer Network ◽  
Zone Plate ◽  
Phase Zone

Uv Curable Liquid Crystals and Their Application

1996 ◽  
Vol 425 ◽  
Author(s):  
H. Takatsu ◽  
H. Hasebe
Keyword(s):  
Liquid Crystals ◽  
Light Scattering ◽  
Liquid Crystalline ◽  
Room Temperature ◽  
Polymer Network ◽  
Driving Voltage ◽  
Uv Curable ◽  
Good Thermal Stability ◽  
Photo Polymerization ◽  
Smectic A

AbstractSome classes of liquid crystalline monoacrylates having no methylene spacers in a side chain have been prepared. The liquid crystalline monoacrylates have effects to reduce the driving voltage and the hysteresis for a light scattering display of Polymer Network liquid crystals prepared by photo-polymerization-induced phase separation.By photo-polymerization of a chiral monoacrylate monomer in a nematic liquid crystalline host including a black dichroic dye, a polarizer free reflective Spiral Polymer Aligned Nematic (SPAN) Guest Host (GH) LCD exhibiting a low driving voltage has been fabricated. The effect of the spiral polymers made of some kinds of chiral monoacrylates for a Super Twisted Nematic (STN) LCD using SPAN liquid crystals is discussed.UV-curable liquid crystals showing nematic phases at room temperature have been developed. By in situ photo-polymerization, the UV-curable liquid crystals can be utilized for the retardation film with high quality and good thermal stability. The fabrication of various kinds of retardation film using the UV-curable liquid crystals is discussed.UV-curable liquid crystals having isotropic-nematic-smectic A phase sequence have been developed and the photo-polymerization at the state of their uniaxially oriented smectic A phases at room temperature is discussed. The polymerized film is optically uniaxial and transparent without light scattering.

P‐148: Chiral Polymer Network of Polymer‐stabilized Blue Phase Liquid Crystals

2019 ◽  
Vol 50 (1) ◽  
pp. 1788-1791
Author(s):  
Yifan Feng ◽  
Changli Sun ◽  
Shenghao Zha ◽  
Jiangang Lu
Keyword(s):  
Liquid Crystals ◽  
Polymer Network ◽  
Phase Liquid ◽  
Blue Phase ◽  
Polymer Stabilized ◽  
Chiral Polymer

Tandem-Phase Zone-Plate Optics for High-Energy X-ray Focusing

2011 ◽  
Vol 50 (2R) ◽  
pp. 022503 ◽  
Author(s):  
Yasushi Kagoshima ◽  
Hidekazu Takano ◽  
Takahisa Koyama ◽  
Yoshiyuki Tsusaka ◽  
Akihiko Saikubo
Keyword(s):  
High Energy ◽  
Zone Plate ◽  
Phase Zone ◽  
X Ray

The Influence of 4,4’-bis[6-(acryloyloxy)-hexyloxy]biphenyl Contents on the Electro-Optical Properties of Polymer Stabilized Liquid Crystals

2013 ◽  
Vol 634-638 ◽  
pp. 2523-2526
Author(s):  
Hui Chang ◽  
Wen Juan Fan ◽  
Xiao Li Liu ◽  
Hong Ying Huo
Keyword(s):  
Optical Properties ◽  
Liquid Crystals ◽  
Response Time ◽  
Polymer Network ◽  
Contrast Ratio ◽  
Monomer Concentration ◽  
Helical Structure ◽  
Switching Process ◽  
Polymer Stabilized ◽  
Structure Of Liquid

The polymer stabilized liquid crystals (PSLC) films was prepared subsequently based on the mesogenic diacrylate monomer 4,4’-bis[6-(acryloyloxy)-hexyloxy]biphenyl (BAB6). The effects of BAB6 on the morphology of polymer network as well as the electro-optical properties of the PSLC films were investigated. The helical structure of liquid crystals was observed in the morphology of polymer network by SEM. Further, a single switching process was observed at lower monomer concentration in this study compared with the former publication. When BAB6 concentration reached 7 %, the response time and contrast ratio of PSLC film were 7 ms and 16.8, respectively.

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