scholarly journals Enhanced electro-optical properties of vertically aligned in-plane-switching liquid crystal displays employing polymer networks

2014 ◽  
Vol 4 (8) ◽  
pp. 1657 ◽  
Author(s):  
Guan-Jhong Lin ◽  
Tien-Jung Chen ◽  
Bo-Yu Chen ◽  
Jin-Jei Wu ◽  
Ying-Jay Yang
Keyword(s):  
Optical Properties ◽  
Liquid Crystal ◽  
Polymer Networks ◽  
Liquid Crystal Displays ◽  
Vertically Aligned

scholarly journals High-Performance Polymer Dispersed Liquid Crystal Enabled by Uniquely Designed Acrylate Monomer

Polymers ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 1625 ◽  
Author(s):  
Rijeesh Kizhakidathazhath ◽  
Hiroya Nishikawa ◽  
Yasushi Okumura ◽  
Hiroki Higuchi ◽  
Hirotsugu Kikuchi
Keyword(s):  
Optical Properties ◽  
Liquid Crystal ◽  
Low Voltage ◽  
Polymer Networks ◽  
Mesh Size ◽  
Laser Scanning Microscopy ◽  
Present System ◽  
Driving Voltage ◽  
Acrylate Monomer ◽  
Polymer Dispersed

The widespread electro–optical applications of polymer dispersed liquid crystals (PDLCs) are hampered by their high-driving voltage. Attempts to fabricate PDLC devices with low driving voltage sacrifice other desirable features of PDLCs. There is thus a clear need to develop a method to reduce the driving voltage without diminishing other revolutionary features of PDLCs. Herein, we report a low-voltage driven PDLC system achieved through an elegantly simple and uniquely designed acrylate monomer (A3DA) featuring a benzene moiety with a dodecyl terminal chain. The PDLC films were fabricated by the photopolymerization of mono- and di-functional acrylate monomers (19.2 wt%) mixed in a nematic liquid crystal E7 (80 wt%). The PDLC film with A3DA exhibited an abrupt decline of driving voltage by 75% (0.55 V/μm) with a high contrast ratio (16.82) while maintaining other electro–optical properties almost the same as the reference cell. The response time was adjusted to satisfactory by tuning the monomer concentration while maintaining the voltage significantly low (3 ms for a voltage of 0.98 V/μm). Confocal laser scanning microscopy confirmed the polyhedral foam texture morphology with an average mesh size of approximately 2.6 μm, which is less in comparison with the mesh size of reference PDLC (3.4 μm), yet the A3DA-PDLC showed low switching voltage. Thus, the promoted electro–optical properties are believed to be originated from the unique polymer networks formed by A3DA and its weak anchoring behavior on LCs. The present system with such a huge reduction in driving voltage and enhanced electro–optical performance opens up an excellent way for abundant perspective applications of PDLCs.

Optimized electro-optical properties of polymer-stabilized vertical-aligned liquid crystal displays driven by an in-plane field

Displays ◽  
2015 ◽  
Vol 37 ◽  
pp. 94-99 ◽  
Author(s):  
Tien-Jung Chen ◽  
Guan-Jhong Lin ◽  
Bo-Yu Chen ◽  
Bo-Rong Lin ◽  
Jin-Jei Wu ◽  
...  
Keyword(s):  
Optical Properties ◽  
Liquid Crystal ◽  
Liquid Crystal Displays ◽  
Plane Field ◽  
Polymer Stabilized

Temperature influence on the dynamics of vertically aligned liquid crystal displays

2008 ◽  
Vol 92 (9) ◽  
pp. 091101 ◽  
Author(s):  
Pieter J. M. Vanbrabant ◽  
Nathalie Dessaud ◽  
Jan F. Strömer
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystal Displays ◽  
Temperature Influence ◽  
Vertically Aligned

Temperature compensated overdrive in vertically aligned liquid crystal displays

2008 ◽  
Vol 93 (26) ◽  
pp. 261112 ◽  
Author(s):  
Pieter J. M. Vanbrabant ◽  
Nathalie Velthoven-Dessaud ◽  
Jan F. Strömer ◽  
Kristiaan Neyts
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystal Displays ◽  
Vertically Aligned

scholarly journals Optical Properties of Color Filters for Liquid Crystal Displays

2010 ◽  
Vol 83 (8) ◽  
pp. 325-329
Author(s):  
Ei-ichiro NISHIHARA ◽  
Yuji MAKIMOTO ◽  
Yoshihiro TAKEUCHI ◽  
Shingo NAKAYAMA ◽  
Masahide ITOH
Keyword(s):  
Optical Properties ◽  
Liquid Crystal ◽  
Liquid Crystal Displays ◽  
Color Filters
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