DisplayMate has already tested the upcoming OnePlus 8 phones and announced that they have excellent screens. This is just a teaser, though, the full findings probably won't be published until the phones are officially unveiled. The new flagships set "10+ display performance records" and their color accuracy is "visually indistinguishable from perfect". This secured them DisplayMate's highest rating, A+, and earned them a DisplayMate Best Smartphone Display Award. OnePlus CEO Pete Lau chimed in to say that the OnePlus 8 Pro broke 13 display performance records. So why the "10+"...
Source: https://www.gsmarena.com/oneplus_8_phones_get_a_score_from_displaymate_8_pro_broke_13_records-news-42418.php