Dynamics and Electrooptics of Vertically Aligned Nematics With Induced Pretilt on
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 therm...
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| Veröffentlicht in: | Journal of display technology 2010-07, Vol.6 (7), p.263-268 |
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| container_title | Journal of display technology |
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| creator | Oton, Eva Lopez-Andres, Sol Carrasco-Vela, Carlos Cerrolaza, Beatriz Bennis, Noureddine Oton, Jose Manuel |
| description | 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. |
| doi_str_mv | 10.1109/JDT.2010.2049730 |
| format | Article |
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| ispartof | Journal of display technology, 2010-07, Vol.6 (7), p.263-268 |
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| source | IEEE Electronic Library (IEL) |
| subjects | Crystalline materials Delay Electron emission Field-emission scanning electron microscopy (FESEM) Liquid crystal displays Liquid crystals Optical polarization Scanning electron microscopy Surface morphology Surface structures Switches vertical alignment vertically aligned nematic (VAN) {\hbox{SiO}}_{x} |
| title | Dynamics and Electrooptics of Vertically Aligned Nematics With Induced Pretilt on |
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