If you have a LED back light LG TV, the problem is the LIGHT DIFFUSION PLATE on top of each LED diode dropped off, you may use supper glue to glue it back, but be aware that the diffusion plate has polarity, if you put it in a wrong position, it will not distribute the LED lights evenly, usually the plate has a small tab on the out-circuit edge, you may look at the other none-drop-off plate to glue it back. please do not put any glue in between the plate & the LED diode, only little glue to cover the three original glue spots.
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