I put a sticker on the back of my new laptop, and when it's off, with light pointing at it at a certain angle, I can see these rainbow colored rings expanding towards the edges of the screen. Is this normal, or are these "newton's rings", some kind of warping or damage done from the pressure from attaching the sticker? Thanks...
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Attaching a sticker to the back will not affect anything. Not a problem.
When the laptop is ON if the LCD screen is fine, don't worry about 'Newton rings' or any other rings!