| Autor: |
Marice van Deurzen, Cindy Nieuwkerk |
| Rok vydání: |
2005 |
| Předmět: |
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| Zdroj: |
SID Symposium Digest of Technical Papers. 36:1168 |
| ISSN: |
0097-966X |
| DOI: |
10.1889/1.2036209 |
| Popis: |
A new method to create multidomain vertically aligned nematic LCDs based on the photoalignment technique has been developed. By photoalignment the pretilt angle of a homeotropic alignment layer can be reduced. In the new method the edges of a pixel are exposed to UV light rendering a pretilt angle between 0 and 90° depending on the exposure conditions. The pretilt angle of the central area of the pixel remains 90°. In combination with a homeotropic aligned polyimide layer a hybrid-aligned nematic LC effect is obtained at the edges of the pixels, whereas in the central area of the pixel the LC material is homeotropically oriented. The hybrid aligned nematic areas have a lower switching voltage than the vertically aligned nematic areas. Upon switching the directional orientation in the edges promotes orientational LC order in the pixel area, thus creating the multidomain vertically aligned nematic effect. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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