Why my TV's corner has a deep dark shadow?

My Philips 50pus7506 4K LED TV

Got some deep dark shadow on the left bottom corner, I'm looking for a fix, I'd be appreciated.

Update (04/14/23)

Yeah, here the pictures

https://imgur.com/a/RJ1ZNQE

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Hmm, it's quite possible you've got an LED strip that's gone out. Can you post a picture of what your screen looks like so we can see what you see?

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