Light leakage the screen corners

[cavi]

Hello friends,
I am new to the forum.
I purchased a month ago iMac 27 inches i3 and unfortunately I changed it back after two weeks because of an hard drive problem (Pak Pak sounds..).
Today I discovered the new computer screen has a problem of light leakage.
What do you think about?
I'm considering asking the distributor to replace my screen.

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