I am using red mi note 2 with Tianma display . The screen with high definition and the battery life is so short . I have to charge twice every day . I like this phone very much ,the only problem is that I have to charge it twice a day .
Tianma screen seems to be more color-accurate... But has a very little blue shadow
I have AUO and with Cold preset in MIUI it's a perfect screen. But drain is same as Tianma so i think it's a kernel / firmware bug