I used to have an MSI GX660R gaming notebook where the glowing LED bar opposite the screen caused similar distortions. After ignoring it for months, this distortion "burned in" to the display panel and became very obvious even from normal viewing angles. A little bit less of an issue on my old model, since it was a wide horizontal bar near the bottom of the screen, not a hand-sized shape smack in the middle.
An EE I know suggested internally covering the LED bar (and all the power traces leading to it) within a grounded conductive shield - aluminum foil, metallized mylar, foil-tape, a proper metal "RF shield", etc. I never actually tried this and can't promise it would do anything, but it seems workable and shouldn't cause any thermal issues (LEDs just don't get very hot, lol). Agreed, if the fix is so easy, then it should really be part of the factory design.
Do you have the option of turning the logo LED(s) off? And, if so, does it make any difference?
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