Backlight Scanning Method, Backlight Scanning Device And Liquid Crystal Display Device

摘要

There are provided a backlight scanning method and a device thereof. The method comprises: dividing an edge lighting type backlight source into an upper side optical region and a lower side optical region; turning on the light sources at the upper and lower sides respectively after the response of the liquid crystal corresponding to the pixels in the last row of the upper and lower side optical regions is stationary; turning off the light sources at the upper and lower sides respectively when the next response period of the liquid crystal corresponding to the pixels in the first row of the upper and lower side optical regions starts. The method solves the difficulties of applying the scanning backlight to the edge lighting type backlight source by respectively controlling the timings of turning on and off the light sources at the upper and lower sides, whereby the application scope of the scanning backlight is broadened.

主权项

1. A backlight scanning method used for a backlight source, the backlight source being an edge lighting type backlight source and comprising light sources and a light guiding element, the light sources being disposed on upper and lower sides of the light guiding element, and the light guiding element comprising an upper side optical region and a lower side optical region that are parallel to each other, the method comprising:
turning on the light sources at the upper and lower sides respectively after the response of the liquid crystal corresponding to the pixels in the last row of the upper and lower side optical regions is stationary; and turning off the light sources at the upper and lower sides respectively when the next response period of the liquid crystal corresponding to the pixels in the first row of the upper and lower side optical regions starts.