After using an LG 4k (one of the very popular ones, 27 inch) for two-three years I started getting red burn-in on the corners of the screen (1 cm width). Switc

After using an LG 4k (one of the very popular ones, 27 inch) for two-three years I started getting red burn-in on the corners of the screen (1 cm width). Switched to the Dell 4k one for now and liking it so far.