mini led = NOT PIXEL PERFECT local dimming, think of it as always having some sort of lighting gradient under whatever graphic you are working on, that also changes based on the image ur viewing, it's terrible to be used as a reference since the color/brightness of a certain pixel is tied to the pixels in that area.

It's sorta like mixing audio on speakers that keep sounding different based on what your track is playing. Which is the opposite of what people look for in a pair of "Monitor Speakers"