Abstract

Optical compensation for wide viewing angle characteristics in a liquid crystal display (LCD) is essential for high-quality dark images, especially from the bisector direction of the crossed polarizers. We introduce achromatic compensation configurations for a perfect dark state in LCDs. To cancel out the effect of wavelength dispersion, we replaced each A plate in the conventional uniaxial configurations by a pair of orthogonal A plates.

© 2015 IEEE

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