Design of High Uniformity LED Backlight

Currently,more and more liquid crystal displays are towards to the low-power,which the effective method is reducing the number of LEDs as the light source.However,as the decrease of LED pixel,hot spot will increase fast.To solve above problem,without changing the distance between LED and guide plate,and with increasing the distance between LED and LED as well as incident angles of guide light plate,light in guide light plat is completely mixed by using this method,and light uniformity is much more improved.Hot spot in the LED backlight module are also solved.This research has good significance for LCD display.