Title
Emerging vertical-alignment liquid-crystal technology associated with surface modification using UV-curable monomer
Abbreviated Journal Title
J. Soc. Inf. Disp.
Keywords
Multi-domain vertical alignment; liquid crystal; polymerization; surface; tilt angle; LCD; Engineering, Electrical & Electronic; Materials Science, ; Multidisciplinary; Optics; Physics, Applied
Abstract
The recent development of polymer-induced pretilt angle in multi-domain vertical-alignment liquid-crystal (LC) structures is reviewed. To create a small but well-defined pretilt angle, similar to 0.1 wt.% of a photo-curable monomer was mixed in an LC host and a bias voltage was applied to reorient the LC directors within each domain. The monomers are polymerized near the substrate surfaces by UV exposure. The formed polymer layers change the surface pretilt angle of the LC from 90 degrees to about 89 degrees with a defined azimuthal orientation. Consequently, within each domain the LC reorientation direction responding to the external field is well-defined which leads to faster rise time and higher transmittance. This new technology overcomes the long standing problems of conventional MVA devices and is therefore expected to play a dominant role in the future.
Journal Title
Journal of the Society for Information Display
Volume
17
Issue/Number
7
Publication Date
1-1-2009
Document Type
Review
Language
English
First Page
551
Last Page
559
WOS Identifier
ISSN
1071-0922
Recommended Citation
"Emerging vertical-alignment liquid-crystal technology associated with surface modification using UV-curable monomer" (2009). Faculty Bibliography 2000s. 1783.
https://stars.library.ucf.edu/facultybib2000/1783