Method and apparatus for improving visual perception of image displayed on liquid crystal screen, liquid crystal panel, and liquid crystal screen

摘要

The invention relates to a method and/or apparatus to improve the visual perception of an image displayed on a liquid crystal (LCD) panel, said method comprising steps for generating an adjusting signal (PE,i+1) of a rear-lighting lamp of said panel depending on an target power value (PT) and for generating a control signal (CE,i+1) of the image contrast depending on said adjusting signal (PE,i+1) of the rear-lighting lamp so as to increase/decrease the contrast of the displayed image when said adjusting signal (PE,i+1) of the rear-lighting lamp decreases/increases.