Abstract: An exemplary backlight module (2) includes a light source (21) having at least two light emitting diodes (211), and a reflection layer (218). Each light emitting diode includes a top surface (214), a side surface (215) adjacent to the top surface. Each of the light emitting diodes configured to emit different colored light respectively. The reflection layer is formed on the top surface of the light emitting diode.

Abstract: An exemplary liquid crystal display device (200) includes a top frame (210), a light source (240) having at least one lamp (241) and a reflective cover (242) disposed adjacent to the at least one lamp; a back plate (260); a fastening member (270) having a bottom plate portion (272) detachably engaged with the back plate and a side plate portion (271) detachably engaged with the top frame, whereby the reflective cover of the light source being engaged with the bottom plate portion; and a liquid crystal display panel (220) fixed in position above the back plate by the top frame. The process of exchanging the at least one lamp does not require disassembly of the whole liquid crystal display device. Further, the whole light source itself may be conveniently exchanged if needed.

Abstract: An exemplary light guide plate (34) includes a main body, and a reflective layer (348). The main body includes a light incident surface (342), and a bottom surface (346) adjacent to the light incident surface. The reflective layer is formed on the bottom surface of the main body such that the main body and the reflective layers are an integrated whole. A liquid crystal display (1) and a backlight module (2) including the light guide plate are also provided.

Abstract: An exemplary backlight module (12) includes a light guide plate (16), a light source assembly (14), a metal frame (13) accommodating the light guide plate and the light source assembly, and an elastic grounding member (15). The light source assembly includes a light source (141) adjacent to the light guide plate and a metal reflector (142) partly surrounding the light source. The elastic grounding member interconnects the metal reflector and the metal frame.

Abstract: An exemplary backlight module (1) includes a light guide plate (14), an optical sheet assembly (12), and a frame (10). The frame accommodates the light guide plate and the optical sheet assembly. The light guide plate includes a light emitting surface (144). The optical sheet assembly is disposed on the light emitting surface of the light guide plate. The frame includes a plurality of spring members (105) elastically pressing at least one edge portion of the optical sheet assembly toward the light emitting surface of the light guide plate.

Abstract: A surface light source (50) includes a light source (53); an optical element (54) configured for receiving light beams from the light source, guiding and uniformizing the light beams, and outputting the light beams; an optical film (56) positioned on the optical element and configured for receiving the output light beams; and a frame (58) accommodating the light source, the optical element and the optical film. The surface light source further has at least one fastening post (542) being formed on one of the optical element and the optical film, and at least one fastening hole (562) being formed on one of the optical film and the optical element, which is corresponding to the at least one fastening post. The optical film is located at the optical element through the cooperation of the at least one fastening post and the at least one fastening hole.