Patent ID: 8641247

Claim:
A ventilation component of a backlight module, characterized in that: the ventilation component comprises: a tubular body being hollow and defining a first thread portion on a bottom thereof, a second thread portion on a top thereof, and a filter supporting portion, wherein the first thread portion fixes the ventilation component onto a back plate of the backlight module; the second thread portion defines at least four opening slots; the filter supporting portion is disposed in the tubular body having at least one air vent; and a height from a support point of the filter supporting portion to a top portion of the tubular body is greater than the depth of the opening slot; a flange portion disposed on an outer periphery between the first thread portion and the second thread portion; a ventilating filter disposed on one side of the filter supporting portion facing toward the second thread portion; a filter washer disposed on the ventilating filter; and a fixing ring being hollow ring-like and having an inner thread portion, wherein the diameter of the inner thread portion is slightly smaller than the diameter of the second thread portion, and the fixing ring is screw-connected into the second thread portion of the tubular body to fasten the ventilating filter in the tubular body; wherein the ventilation component communicates the internal air with the external air of the backlight module through the ventilating filter.