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Analysis of Properties of Rubbed Polyimide Alignment Layer and Rubbing Effect of Various Rubbing Cloths for LCD Fabrication  

Ahn, Hong-Jun (Department of Chemical Engineering, Kyung Hee University)
Lee, Jang-Ju (Department of Chemical Engineering, Kyung Hee University)
Ahn, Jong-Soo (Youngdo Velvet)
Park, Kyung-Chul (Youngdo Velvet)
Noh, Jae-Gyu (Hyperflex)
Yoo, Dong-Yeon (Hyperflex)
Paek, Sang-Hyon (Department of Chemical Engineering, Kyung Hee University)
Publication Information
Polymer(Korea) / v.35, no.5, 2011 , pp. 385-389 More about this Journal
Abstract
In rubbing process, process factors, the properties of alignment layer and the physical properties of rubbing cloth have acted as important variables. These factors affect the orientation properties of the alignment layer by rubbed extent that is determined by rubbing density and rubbing force. In this work, we studied the effects of rubbing cloths with different pile density and rigidity on rubbing density(length) and rubbing force. As the pile density and rigidity of rubbing cloths increased, the birefringence and the surface roughness of the rubbed alignment layers became bigger, but the characteristics of rubbing-effect had differed each other. The pile density of rubbing cloths which was related with the number of pile, affected the rubbing density(length). On the other hand, the pile rigidity of rubbing was closely related to rubbing force rather than the rubbing density(length).
Keywords
rubbing cloth; alignment layer; pile density; birefringence; rubbing effect;
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Times Cited By Web Of Science : 1  (Related Records In Web of Science)
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