LG 65uj6300-ua busylor, dim screen blue spot. Backlight or t-con

LG 65uj6300-ua busylor, dim screen blue spot. Backlight or t-con

I have a LG 65uj6300-ua busylor (2017), that about a week ago had two (2) blue spots mid top on left and bottom right, and now when I turn on the TV I have one (1) blue spot bottom right however the mid top blue spot has now dimmed the top half of the screen. I wondering if this is a bad backlight array, or a bad t-con….. or something else. I dont want a new tv because this was a high priced one to begin with. See picture

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