Confermo. Schermo nero perfettamente uniforme. In rete in effetti si trovano numerosi riferimenti al problema, con varie spiegazioni, una plausibile mi sembra la seguente: "In theory, inactive OLED elements, i.e. black pixels should be completely off. But the response time from off to on is pretty terrible so in reality they are supposed to be kept pre-charged with some level of voltage. This causes the glow that makes the screen look backlit even though it isn't. But some pixels take more juice to activate than others, so they remain true black while others are precharge black".