Patent ID: 9726930
Date: 2017-08-08
CPC Classifications: G02B,G02F,H05B

Claim:
1. A backlight module comprising an LED backlight source and a driving circuit, the LED backlight source comprising first LEDs each formed of a blue light chip, red phosphor powder and green phosphor powder, and second LEDs each formed of a blue light chip, a green light chip and red phosphor powder, and the driving circuit comprising driving circuit modules for driving the first LEDs and the second LEDs respectively, wherein, the driving circuit modules turn on only the first LEDs when display colors of a liquid crystal display is in sRGB 100% color gamut; and alternately turn on the first LEDs and the second LEDs when display colors of the liquid crystal display is beyond sRGB 100% color gamut, wherein the backlight module further comprises a light-guiding plate, the first LEDs and the second LEDs being arranged alternatively in lines on a light incidence side of the light-guiding plate.