Backlight module

A backlight module, comprising a backplane, a backlight source arranged inside the backplane, a reflector plate arranged inside the backplane, a light guide plate arranged on the reflector plate, and a mold frame mounted to the backplane, the mold frame forming a projection, the backplane forming a retention slot corresponding to the projection, the projection and the retention slot being mateable with each other through interference fitting, whereby with the interference fitting between the projection and the retention slot, the mold frame is fixedly connected to the backplane;

• and
• wherein the projection has a cross-section that is of a trapezoidal shape;
• wherein the retention slot has a shape corresponding to the shape of the projection and the retention slot has a size that is smaller than size of the projection;
• wherein the backplane comprises a bottom board and a first side board;
• wherein the retention section is formed in the first side board;
• wherein the mold frame comprises a top board and a second side board;
• wherein the projection is formed on an end face of a free end of the second side board;
• further comprising a heat dissipation plate arranged under the reflector plate, a diffusion plate arranged on the light guide plate, and a prism plate arranged on the diffusion plate;
• and
• wherein the backlight source comprises a linear light source.