Patent ID: 8994638
Filing Date: 2015-03-31
Classification: G09G

Abstract:
1. A backlight scanning method for controlling a backlight for a liquid crystal display panel, the backlight comprising light groups on left and right sides, the method comprising steps of: determining a time period for turning on and off the light groups on the left and right sides in accordance with a control signal for pixels in the liquid crystal display panel; and in scanning, turning on and off the light groups on the left and right sides alternately in sets, and during the course of displaying one frame by the liquid crystal display, turning on or off the light groups on the left and right sides at least two times, wherein at each time that one set is scanned, a light group corresponding to the scanned set and other light groups belonging to set (s) of a same partial area as the scanned set are turned on, and meanwhile the light groups in another partial area are turned off, and the sets of the light groups in these two partial areas are distributed alternately.