Integrated LED module for local dimming with lower computational complexity and higher performances in LED backlight

In this paper, a type of integrated LED module comprising LED source, freeform lens and hexagonal absorbing wall was proposed to be utilized in local dimming for LED backlight to move away the process step of actual backlight simulation, which originally requires high computational complexity. With the aid of proposed LED module, computational complexity can be decreased by several times and performances of distortion rate and power consumption reduction can be improved due to the uniform light pattern with cut-sharp edges produced by proposed LED module and the use of more dimming blocks.