Abstract
In this paper, we propose an in-plane switching (IPS) mode for liquid crystal
displays (LCDs) that, in principle, is free of retardation of the LC cell.
Basically, the optical configuration of the LC cell consists of an A-plate and an LC
layer for switching between the dark and bright states. We could achieve a fast
response time compared with the conventional in-plane LC cell because the free
retardation condition of the proposed LC cell enables us to reduce the cell gap even
by quarter-wave retardation without any change of the optimized LC material in the
transmissive mode. Experiments for verification of the proposed in-plane switching
LC cells have shown a significant reduction of the rising time and falling time
simultaneously due to the small cell gap. Furthermore, we also proposed an optical
configuration for wide viewing property of the retardation free IPS LCD by applying
the optical films. We proved the wide-view property of the retardation free IPS LCD
by comparing its optical luminance with the calculated optical property of the
conventional IPS LCD.
© 2011 Optical Society of Korea
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