Patent ID: 7830355

Claim:
A liquid crystal display device having a liquid crystal display panel and a backlight which is arranged on a back surface of the liquid crystal display panel, wherein the backlight includes a plurality of linear light sources which are provided to a surface substantially parallel to a surface of the liquid crystal display panel, are extended in the x direction of the liquid crystal display panel and are arranged in parallel in the y direction, and among respective light sources, at the time of performing the display driving, the light source arranged at a center portion repeats the lighting and the extinguishing and other remaining light sources maintain the lighting, and wherein respective regions which are surrounded by gate signal lines which are extended in the x direction and are arranged in parallel in the y direction and drain signal lines which are extended in the y direction and are arranged in parallel in the x direction on a liquid-crystal-side surface of one of substrates which are arranged to face each other in an opposed manner while sandwiching liquid crystal therebetween are defined as pixel regions and each pixel region is provided with a switching element which is driven by scanning signals from one-side gate signal line and a pixel electrode to which video signals are supplied from the drain signal line through the switching element.