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ASME Press Select Proceedings

International Conference on Mechanical and Electrical Technology, 3rd, (ICMET-China 2011), Volumes 1–3

By
Yi Xie
Yi Xie
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ISBN:
9780791859810
No. of Pages:
906
Publisher:
ASME Press
Publication date:
2011

Calculation of the LCD director and transmission based on the continuous elastic theory, difference iterative method, and the Berreman's 4×4 matrix method is shown. The realization of this procedure is in Visual C + + to calculate the characters of the reflection-type and transmission-type of LCD. Sub-twisted nematic (SBTN) LCD is described which characteristics were not clear. Transmission has been calculated by using the software[l] with different parameters. The results of the contrast - viewing angle curves show that: the SBTN liquid crystal display can achieve wide prospective. We found the optimal setting parameters: the azumith is 75°, And=0.19um, pO=5um to achieve wide prospective from −85 ° to 85° in the horizontal direction. Of course, the azimuth from 60° to 90° can also be used to obtain wide prospective when And and pO are chosen properly.

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