Liquid crystal display and driving method thereof

摘要

A method of optimizing pixel signals for a liquid crystal display includes receiving the first, second and third pixel signals for the (n−1), (n) and (n+1)th frames. The first and second pixel signals are compared to determine if the second pixel signal requires overshooting or undershooting. The second and third pixel signals are compared to determine if the second pixel signal requires to be increased for pre-titling. The second pixel signal is compensated accordingly, thereby increasing liquid crystal response time.

主权项

1. A display apparatus comprising:
a driving device configured to:
use a lookup table that maps all grey levels of a first range to a corresponding color corrected gray scale signals in a second range, wherein each range comprises a same lower limit corresponding to a 0% pixel transmittance, the first range comprises a first upper limit corresponding to a full-white color, and the second range comprises a second upper limit lower than the first upper limit that corresponds to the full-white color;compare a first pixel signal of the color corrected gray scale signals for an n-th frame with a gray level of a second pixel signal of the color corrected gray scale signals for an (n−i)-th frame and use the first pixel signal to generate a compensated first pixel signal; a display panel configured to display an image based on the compensated first pixel signal; and wherein the compensated first pixel signal has a voltage level higher than a voltage level at which the image has the first upper limit, wherein a gray level of the compensated first pixel signal is higher than the second upper limit, wherein each range is represented by a same number of bits.