Longli Technology obtains patent for backlight module and realizes ultra-thin backlight module

The patent abstract shows that the present invention discloses a backlight module and a liquid crystal display device, which include an LED light source; a light guide plate arranged on one side of the LED light source; and an optical film set. The optical film set includes a diffusion film arranged above the light guide plate, a prism sheet arranged above the diffusion film, and a reflective sheet arranged below the light guide plate. The LED light source includes an LED chip body and at least one retaining wall. The LED chip and at least one retaining wall are integrally connected to form a receiving space with an opening. The light guide plate engages the receiving space, and the light emitted by the LED chip body propagates to the light guide plate through the opening. The invention realizes a stable connection between the LED light source and the light guide plate, simultaneously enhances the connection strength between the LED light source and the flexible printed circuit board (FPC), greatly reduces light leakage, and realizes ultra-thin backlight module.