48.3: Continuous Coating of Photo-Alignment Layer on a Flexible Color Filter for LCDs Using a Roll-to-Roll Manufacturing Process

2006 ◽  
Vol 37 (1) ◽  
pp. 1579 ◽  
Author(s):  
Akio Sonehara ◽  
Kazunori Maruyama ◽  
Yoshiyuki Ono ◽  
Atsushi Sugizaki ◽  
Toshimasa Eguchi ◽  
...  
Keyword(s):  
Manufacturing Process ◽  
Color Filter ◽  
Alignment Layer ◽  
Roll To Roll ◽  
Photo Alignment

Laser Folding in a Roll-to-Roll Manufacturing Process

2018 ◽  
Vol 5 (3) ◽  
pp. 237-247 ◽  
Author(s):  
Nathan Lazarus ◽  
Gabriel L. Smith
Keyword(s):  
Manufacturing Process ◽  
Roll To Roll

P.98: Novel Composite Photo-alignment Layer for Ferroelectric Liquid Crystal Display

2013 ◽  
Vol 44 (1) ◽  
pp. 1353-1354
Author(s):  
Qi Guo ◽  
Abhishek Srivastava ◽  
Ying Ma ◽  
Eugene Pozhidaev ◽  
Vladimir Chigrinov ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystal Display ◽  
Ferroelectric Liquid Crystal ◽  
Alignment Layer ◽  
Photo Alignment

The Characteristics of Photo alignment Layer with Chalcone Derivative for 3D Film Applications

2012 ◽  
Vol 4 (4) ◽  
pp. 379-381
Author(s):  
Ju Hui Kang ◽  
Si Yeol Yang ◽  
Seung Yong Jeong ◽  
Sangkug Lee ◽  
Kyung Ho Choi ◽  
...  
Keyword(s):  
Alignment Layer ◽  
Chalcone Derivative ◽  
Photo Alignment

scholarly journals Dye-less color filter fabricated by roll-to-roll imprinting for liquid crystal display applications

2009 ◽  
Vol 17 (15) ◽  
pp. 12397 ◽  
Author(s):  
Hui-Hsiung Lin ◽  
Chi-hung Lee ◽  
Mao-Hong Lu
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystal Display ◽  
Color Filter ◽  
Roll To Roll

Properties of column spacers on a flexible color filter using a roll-to-roll process

2006 ◽  
Vol 14 (8) ◽  
pp. 673 ◽  
Author(s):  
A. Sonehara ◽  
T. Eguchi ◽  
A. Sugizaki ◽  
A. Kumano ◽  
T. Ito ◽  
...  
Keyword(s):  
Color Filter ◽  
Roll To Roll

scholarly journals Flexible Color Filter Carried Out by a Roll-to-Roll Process

Kobunshi ◽  
2005 ◽  
Vol 54 (5) ◽  
pp. 309-309
Author(s):  
Toshimasa EGUCHI
Keyword(s):  
Color Filter ◽  
Roll To Roll

Annihilation of Photochemical Reactivity of Photo-Alignment Layer

2008 ◽  
Vol 8 (9) ◽  
pp. 4611-4615 ◽  
Author(s):  
S. H. Hong ◽  
Y. J. Hwang ◽  
S. G. Lee ◽  
D. M. Shin
Keyword(s):  
Functional Groups ◽  
Contrast Ratio ◽  
Ultra Violet ◽  
Annihilation Process ◽  
Polyimide Films ◽  
Alignment Layer ◽  
Liquid Polymer ◽  
Reactive Carbon ◽  
Polarization Axis ◽  
Photo Alignment

The gas-polymer and liquid-polymer interfacial reactions of photosensitive polyimide can annihilate photo-reactive carbon–carbon double bonds, which remain after photo-alignment process. The annihilation processes dramatically affect voltage holding ratio and reorientation of photo-active functional groups. Photochemical dimerizations were identified using UV-visible and FT-IR spectroscopy. Polyimide films containing cinnamate groups were irradiated by linear polarized ultra violet (LPUV) light. Schadt et al. claims that the photo-alignment results from the anisotropy depletion of the cinnamate side chains as a consequence of the (2 + 2) cycloaddition reactions.1 The photoaligned polyimide induces the orientation of nematic liquid crystals perpendicular to the polarization axis.1,2 However, the un-reacted photo-sensitive functional groups generate problems such as image sticking and reduced contrast ratio. Voltage holding ratio and photo-fading observed from photo-alignment layer can be dramatically improved by annihilation process of remnant photoreactive groups.

Controlling Peeling Front Geometry in a Roll-to-Roll Thin Film Transfer Process

2020 ◽  
Author(s):  
Qishen Zhao ◽  
Nan Hong ◽  
Dongmei Chen ◽  
Wei Li
Keyword(s):  
Manufacturing Process ◽  
Degrees Of Freedom ◽  
Control Method ◽  
Scale Up ◽  
Continuous System ◽  
Small Scale ◽  
Transfer Printing ◽  
Roll To Roll ◽  
Peeling Process ◽  
Control Scheme

Abstract Mechanical peeling is becoming an important manufacturing process in areas such as transfer printing and two-dimensional (2D) materials fabrication. Existing research has demonstrated the potential of successful peeling in small-scale by hand or with a robotic system. However, to scale up the manufacturing process, a roll-to-roll continuous system is needed. It is generally understood that the peeling front characteristics, including peeling angles, speed, and tension, are critical to the quality of the peeling process. In a roll-to-roll setting, controlling these characteristics becomes challenging since there are fewer degrees of freedom in the control design, and the complex relationship among the process parameters. In this study, a system model of a roll-to-roll peeling process is developed and a feedback controller to maintain the desired system performance is proposed. The control method is demonstrated with both numerical simulation and experimental results. It is shown that with the proposed control scheme, desired peeling front geometry can be achieved.

Cinnamate-functionalized hyperbranched polymer as liquid crystal photo-alignment layer

2008 ◽  
Vol 19 (9) ◽  
pp. 1131-1134 ◽  
Author(s):  
Bin Jun Shen ◽  
Zheng Xie ◽  
Ya Ning He ◽  
Yan Qing Lian
Keyword(s):  
Liquid Crystal ◽  
Hyperbranched Polymer ◽  
Alignment Layer ◽  
Photo Alignment
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