Patent ID: 9322982
Filing Date: 2016-04-26
CPC Classification: G02B,G02F

Claim Text:
1. A backlight module, comprising: a backplane, a light guide plate arranged in the backplane, a backlight source arranged in the backplane, and a heat dissipation plate arranged between the backlight source and the backplane, the backplane comprising a bottom plate and a side plate perpendicularly connected to the bottom plate, the backlight source comprising a PCB (Printed Circuit Board) and an LED (Light-Emitting Diode) chip mounted on the PCB, the PCB being arranged on the bottom plate of the backplane and the heat dissipation plate, the PCB comprising a mounting section having a thickness and a lapping section connected to the mounting section and having a second thickness that is smaller than the first thickness and reduced from the first thickness by a thickness difference, the heat dissipation plate comprising a support section and a bearing section connected to the support section and having a third thickness that is substantially equal to thickness difference between the first and second thicknesses of the PCB, the bearing section being arranged to correspond to the lapping section, such that the lapping section is positionable on and overlapping the bearing section with a bottom surface of the mounting section of the PCB and a bottom surface of the heat dissipation plate substantially flush with each other to define a flat, continuous surface positioned on and in surface contact engagement with an inside surface of the bottom plate of the backplane, and the light guide plate is carried on the support section of the heat dissipation plate and the lapping section of the PCB.