Abstract
In this paper, we propose two novel pixel circuits which are able to provide great picture
quality at oblique viewing angles. These two pixel circuits are based upon the VA-IPS mode with
vertically aligned nematic liquid crystals and in-plane switching electrodes. Comparing to current
VA-type LCDs, the VA-IPS mode can be used to improve oblique gamma distortion with its tone
rendering distortion index (TRDI) as low as 0.15. With the proposed pixel circuits, we believe the
TRDI can be further improved to be less than 0.13. The novel technologies are very likely to be
the solution for VA-type LCDs when facing the competition from other display
technologies.
© 2013 IEEE
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