Patent ID: 8550685

Claim:
A backlight module comprising: a light guiding plate comprising a light input surface, a light output surface, and four side surfaces, the light input surface being opposite to the light output surface, the four side surfaces being sandwiched between the light input surface and the light output surface; a light source facing the light input surface of the light guiding plate, the light source comprising a plurality of LEDs, the LEDs emitting light with at least two wavelengths, and the at least two wavelengths light mixing with each other to gain a white light; a complementary color element adjacent to the light source, the complementary color element being configured for receiving light emitted from a corresponding adjacent, outmost LED and converting the light into white light, the white light being reflected by the complementary color element and emitting from the light guiding plate through the light output surface of the light guiding plate; and an enclosure, wherein the enclosure comprises a base and four supporting portions outwardly extending from lateral sides of the base, the light source being mounted on the base, the light guiding plate being received in the enclosure, the four side surfaces respectively facing the four supporting portions.