Patent ID: 8917367

Claim:
A backlight module, comprising a light guide plate and a light source, the light guide plate including a light incidence surface facing the light source, a light exit surface connected to the light incidence surface and a bottom surface opposite to the light exit surface, the light source including a light-emitting surface, the light emitted by the light source passing through the light incidence surface to enter into the light guide plate, characterized in that: the backlight module also comprising a first back plate, a second back plate and a retaining member, the first back plate including a first main body and a first bending portion, the second back plate including a second main body and a second bending portion, and the first bending portion being vertically bent and extending from one end of the first main body; the light guide plate being fixedly connected to the first main body by the retaining member, the light source being mounted on an inner side of the first bending portion, the light-emitting surface of the light source being in contact with the light incidence surface of the light guide plate, and another surface of the light guide plate opposite to the light incidence surface being close to an inner side of the second bending portion; Wherein when the light guide plate expands with heat, the expanded light guide plate contacts with the second bending portion and directly pushes the second bending portion to make the second back plate sliding relative to the first back plate with a connection member fixing the first main body on the second main body, both respectively facing two left-and-right parts of the bottom surface of the light guide plate and being slidably on each other.