Abstract
Polarization interference filter (PIF) based liquid crystal displays (LCD) have previously been shown to provide high brightness and good color saturation. These devices do not make use of color filters and therefore provide higher resolution and brightness. Such devices can be driven using active or passive matrix driving. In this paper we investigate the viewing angle (VA) performance of a passive matrix display which uses double layer super twisted nematic (DSTN) LCDs. The application of a negative birefringence film and biaxial retarders to improve the VA performance was modeled using the extended Jones matrix calculation and compared to the ideal positive birefringence compensator of the DSTN. The display's color sensitivity with respect to retarder angle and retardance was also modeled for typical manufacturing tolerances.
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