Backlight module and display device having the same

摘要

A backlight module includes: a frame; a backboard configured to support the frame; a radiator provided in the backboard and connected to an inner wall of the frame; a light source fixed to an inner wall of the radiator; a light guide plate relatively slidably mounted on the radiator and configured to guide light emitted by the light source; and at least one buffer mounted on the radiator and configured so that the radiator is moveable relative to the backboard against an elastic force of the buffer. The backlight module can effectively eliminate the phenomenon in which a shadow of the light source is present in pictures coming from the backlight module since the light guide plate presses against the light source after it is heated to expand. The present invention further provides a display device including the above backlight module.

主权项

1. A backlight module, including:
a frame; a backboard directly connected to the frame to support the frame; a radiator provided in the backboard and connected to an inner wall of the frame; a light source fixed to an inner wall of the radiator; a light guide plate relatively slidably mounted on the radiator and configured to guide light emitted by the light source; at least one buffer mounted on the radiator, wherein each buffer includes a bolt by which the radiator is provided on the backboard and a flexible gasket provided between a screw rod of the bolt and the radiator, a receiving hole for receiving the flexible gasket is provided in a portion of the radiator where the bolt is mounted, and there is further provided a washer between a screw cap of the bolt and the radiator, and a flexible pad provided between a vertical wall of the radiator and a vertical portion of the frame, wherein the light guide plate is constructed to apply a pressing force on the light source when the light guide plate is expanded after being heated, the pressing force is transmitted to the radiator, the flexible pad and the flexible gasket is compressed and deformed by the radiator while the radiator is displaced with respect to the backboard and the light guide plate in a direction in which the light guide plate is expanded, so that a contraction of the flexible pad and the flexible gasket absorb the pressing force generated by a deformation of the light guide plate due to heat.