Lenovo's 2020 P series laptops are portable workstation, that are based on 15.6" displays. There are several models - and the top-of-the-line P1 Gen 2 and the P53 both has optional 15.6" 4K touch AMOLED displays. The laptops are based on Intel's latest 9th-Gen CPUs.
Lenovo's 2020 P series laptops have started shipping in mid-2020. The P53 OLED edition laptops start at $3,900.
15.6" 4K touch AMOLED