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Dynamics and Electrooptics of Vertically Aligned Nematics With Induced Pretilt on SiOx

Otón Martínez, Eva and López Andrés, Sol and Carrasco Vela, Carlos and Cerrolaza, Beatriz and Bennis, Noureddine and Otón Sánchez, José Manuel (2010) Dynamics and Electrooptics of Vertically Aligned Nematics With Induced Pretilt on SiOx. Journal of display technology, 6 (7). pp. 263-268. ISSN 1551-319X

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Abstract

The response time and contrast of vertically-aligned
negative nematics depend critically on the aligning surface and its
induced pretilt. Pretilt can be tuned up using obliquely evaporated
inorganic oxides as alignment surface.
A thorough study of pretilt angles induced by aligning surfaces
of thermally evaporated SiO has been carried out on
several commercial and experimental negative nematic mixtures.
Morphology of SiO with different evaporation angles has been
studied by Field Emission Scanning Electron Microscopy. Some
morphological variations appear at specific evaporation angles.
These are related to the pretilt induced by the surface and to the
dynamic response of the device.


Item Type:Article
Uncontrolled Keywords:Field-emission scanning electron microscopy (FESEM), Liquid crystals, SiOx , Vertically aligned nematic (VAN), Vertical alignment
Subjects:Sciences > Geology > Crystallography
ID Code:14751
Deposited On:10 Apr 2012 11:20
Last Modified:10 Apr 2012 11:20

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