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http://dx.doi.org/10.6109/jkiice.2007.11.2.344

Design of electrodes in the Patterned Vertical Aligned Liquid Crystal Cell for high optical performance  

Lee, Wa-Ryong (동아대학교 전자공학과)
Kim, Kyung-Mi (동아대학교 전자공학과)
Lee, Gi-Dong (동아대학교 전자공학과)
Abstract
In this paper, we propose the electrode of the Patterned Vertical Aligned (PVA) cell [1] for high transmittance. We use the 'TechWiz LCD' for calculation of the director configuration and optical characteristics to ensure the results of the proposed electrode structure. In general, the transmittance of the PVA cell depends on the shape of the electrode and cell gap. In this work the width of gate line and data line of the improved electrode design is set to be equal to that of the PVA conventional. Instead, we modified the shape of the top and bottom electrode on order to decrease the area of the defect. For verification, we compared the calculated optical transmittance of the PVA cell with the proposed electrode structure to the conventional PVA cell . As a result, we can confirm that the optical loss due to the variation of the retardation the LC cell around electrode can be definitely decreased by the proposed electrode.
Keywords
PVA;
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  • Reference
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