Effects of Pretilt Angle on Electro-Optical Properties of Optically Compensated Bend Liquid Crystal Devices With a Mixed Polyimide Alignment Layer

2016 ◽  
Vol 12 (3) ◽  
pp. 302-308 ◽  
Author(s):  
Guan-Jhong Lin ◽  
Tien-Jung Chen ◽  
Bo-Rong Lin ◽  
Hsuan-I Liao ◽  
Yi Chang ◽  
...  
Keyword(s):  
Optical Properties ◽  
Liquid Crystal ◽  
Alignment Layer ◽  
Liquid Crystal Devices ◽  
Pretilt Angle

Electro-optical property of polymerized liquid crystal devices using linearly polarized UV irradiation

2021 ◽  
Author(s):  
Masahiro Ito ◽  
Kazuma Kajiwara ◽  
Kohki Takatoh
Keyword(s):  
Liquid Crystal ◽  
Uv Light ◽  
Strong Dependence ◽  
Fast Response ◽  
Alignment Layer ◽  
Liquid Crystal Devices ◽  
Decay Times ◽  
Linearly Polarized ◽  
Reactive Mesogens ◽  
Strong Anchoring

Abstract Display characteristics have a fairly strong dependence on the configuration of the liquid crystal (LC) molecules and interactions between the LC molecules and the alignment layer surface. To obtain LC devices with a fast response, the usage of reactive mesogens (RMs) have been studied. RMs polymerize in the vicinity of the alignment layer. We assessed the effectiveness of linearly polarized UV light for polymer formation. Three kinds of UV light, namely (i)non-polarized (ii)parallel to, and (iii)perpendicular to the rubbing direction, were used to irradiate LC cells with RM concentrations of 5wt% and 10wt%. For both RM concentrations, LC devices using LPUV parallel to the rubbing direction yielded the shortest decay times. SEM observation revealed that the fibrils polymerized linearly in the same direction on using LPUV parallel to the rubbing direction. The decay time was presumably shortened by the strong anchoring force and high alignment ability of the linear fibrils.

An improved alignment layer grown by oblique evaporation for liquid crystal devices

Displays ◽  
2006 ◽  
Vol 27 (2) ◽  
pp. 69-72 ◽  
Author(s):  
Wan-Rone Liou ◽  
Chin-Ying Chen ◽  
Jyh-Jier Ho ◽  
Chao-Kuei Hsu ◽  
Chung-Cheng Chang ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Alignment Layer ◽  
Liquid Crystal Devices

Thermal and electro-optical properties of cerium-oxide-doped liquid-crystal devices

2016 ◽  
Vol 44 (3) ◽  
pp. 538-543 ◽  
Author(s):  
Hyo-Young Mun ◽  
Hong-Gyu Park ◽  
Hae-Chang Jeong ◽  
Ju Hwan Lee ◽  
Byeong-Yun Oh ◽  
...  
Keyword(s):  
Optical Properties ◽  
Liquid Crystal ◽  
Cerium Oxide ◽  
Liquid Crystal Devices

The effect of SiOx alignment layer thickness on the switching of SmC∗ bistable liquid crystal devices

2010 ◽  
Vol 107 (1) ◽  
pp. 014103 ◽  
Author(s):  
Mitya Reznikov ◽  
Philip J. Bos ◽  
Michael J. O’Callaghan
Keyword(s):  
Liquid Crystal ◽  
Layer Thickness ◽  
Alignment Layer ◽  
Liquid Crystal Devices

Monolayer graphene electrodes as alignment layer for ferroelectric liquid crystal devices

2019 ◽  
Vol 279 ◽  
pp. 294-298 ◽  
Author(s):  
Achu Chandran ◽  
Tilak Joshi ◽  
Indu Sharma ◽  
Kiran M. Subhedar ◽  
Dalip S. Mehta ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Monolayer Graphene ◽  
Ferroelectric Liquid Crystal ◽  
Alignment Layer ◽  
Liquid Crystal Devices

Using Replica Molding Method to Fabricate Alignment-Layer Free Flexible Liquid Crystal Devices

2009 ◽  
Vol 507 (1) ◽  
pp. 194-201 ◽  
Author(s):  
Pei-Shiang Chen ◽  
Han-Hsun Chang ◽  
Jun-Wei Chen ◽  
Tzu-Chieh Lin ◽  
Chih-Yu Chao
Keyword(s):  
Liquid Crystal ◽  
Alignment Layer ◽  
Replica Molding ◽  
Molding Method ◽  
Liquid Crystal Devices

Enhanced electro-optical properties of Y2O3(yttrium trioxide) nanoparticle-doped twisted nematic liquid crystal devices

2012 ◽  
Vol 39 (7) ◽  
pp. 789-793 ◽  
Author(s):  
Hae-Yoon Jung ◽  
Hyung-Jun Kim ◽  
Seok Yang ◽  
Young-Gu Kang ◽  
Byeong-Yun Oh ◽  
...  
Keyword(s):  
Optical Properties ◽  
Liquid Crystal ◽  
Nematic Liquid Crystal ◽  
Liquid Crystal Devices ◽  
Twisted Nematic ◽  
Twisted Nematic Liquid Crystal

Control of High Pretilt Angle for Nematic Liquid Crystal on Homeotropic Alignment Layer by In-situ Photoalignment Method

2004 ◽  
Vol 412 (1) ◽  
pp. 269-275 ◽  
Author(s):  
Yong-Je Jeon ◽  
Jeong-Yeon Hwang ◽  
Dae-Shik Seo ◽  
Sang-Hee Nam ◽  
Jeong-In Han
Keyword(s):  
Liquid Crystal ◽  
Nematic Liquid Crystal ◽  
Alignment Layer ◽  
Homeotropic Alignment ◽  
Pretilt Angle
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