Patent ID: 8723783

Claim:
A liquid crystal display (LCD), comprising: a liquid crystal panel; a light source unit to provide light to the liquid crystal panel, the light source unit comprising light-emitting blocks disposed in rows, each light-emitting block comprising a first point light source to emit a first light and a second point light source to emit a second light; a first timing controller to transmit a first image signal to the liquid crystal panel and a second image signal to the liquid crystal panel; a second timing controller to transmit optical data, the optical data comprising: first information configured to turn on the first point light sources and the second point light sources at different times; and second information configured to turn off the first point light sources and the second point light sources, such that each light-emitting block sequentially emits no light for a period of time after the light-emitting block emits the first light and before the light-emitting block emits the second light; and a light source driver to control the first point light sources and the second point light sources according to the optical data, such that a light-emitting block emitting no light is disposed between a light-emitting block emitting the first light and a light-emitting block emitting the second light, wherein the first point light sources are turned on for at least a portion of a period of time in which the first image signal is transmitted to the liquid crystal panel, and the second point light sources are turned on for at least a portion of a period of time in which the second image signal is transmitted to the liquid crystal panel, wherein the second information is configured such that the period of time each light-emitting block emits no light substantially prevents mixing of the first light and the second light emitted therefrom, and wherein the light source driver comprises sub light source drivers respectively corresponding to the light-emitting blocks, wherein each of the sub light source drivers controls the first point light sources and the second point light sources included in a corresponding one of the light-emitting blocks to be turned on and off.