The Electro optic Characteristics of Multi-Cell Gap Fringe-Field Switching Mode

概要

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The electro optic characteristics of the fringe-field switching (FFS) mode can be investigated by a combination of in-plane switching (IPS) at electrode center and low-twist TN (= electrode edge). In other words, the smaller optimal optical retardation and higher operating voltage of the IPS mode compared with the low-twist TN mode mean that the retardation and operating voltage ($=V_{\text{op}}$) of the FFS mode can not be optimized for maximum transmittance at both the center and the edge of the electrode. In the multi-cell gap (= MCG)-FFS mode, the operating voltage at the edge is increased by heightening the cell gap at the edge and is shifted near $V_{\text{op}}$ at the center. One notable result is that the transmittance at the center with increased value $D$ (= the cell gap at the near edge) becomes higher owing to the increased twist angle. In conclusion, the novel FFS mode has a higher transmittance than the conventional FFS mode.
2005-02-15