| 摘要 |
A backlight unit for a liquid crystal display is disclosed. The unit includes a light guide plate, a reflector, a light source and a frame. The light guide plate further includes a protrusion located on the side surface of the light guide plate, and the frame further includes a first groove, a second groove and a fixing portion. The first groove is connected with the fixing portion, and the second groove is also connected with the fixing portion. The light guide plate is combined with the frame by gliding and inserting the protrusions into the fixing portion through the first and second grooves.
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