Supporting structure and fixing component having a through-hole and opening for pin structure engagement and backlight module using the same

A backlight module comprising:

• a plurality of optical sheets;
• a supporting structure comprising:
• a fixing component having an upper surface, a through-hole and two openings, the upper surface facing the optical sheets;
• and
• a supporting component, comprising:
• a supporting pin having a top end and a bottom end, the top end for supporting the optical sheets on the fixing component, the optical sheets parallel to the fixing component;
• an elongated block having a width and a length that is greater than the width, the length of the block defining a longitudinal direction of the block, the block being disposed at the bottom end;
• a plate disposed on the supporting pin and being disposed above the block and separated thereby by a narrowed neck portion;
• and
• two protrusions disposed at two opposite sides and directly on a bottom of the plate and facing the bottom end, the protrusions corresponding to the respective openings, an angle being defined between a direction connecting the protrusions and the longitudinal direction of the block, and the angle being larger than zero degrees;
• a circuit board disposed on the upper surface;
• and
• a light emitting device disposed on the circuit board for providing a backlight source;
• wherein after the block goes through the through-hole and is rotated by the angle, the plate presses against an upper surface of the fixing component the block presses against a lower surface of the fixing component respectively the protrusions engaging in the corresponding openings for positioning the supporting component, so as to fix the supporting component onto the fixing component.