[murderberry]

LCDs have PWM-dimmed backlights, so if your laptop isn't set to maximum brightness, you're probably staring at a flickering surface too.

Perhaps a simpler explanation is just contrast? Both OLEDs and CRTs can produce much higher contrast than LCDs.

[fomine3]

No PWM is common for LCDs https://www.notebookcheck.net/PWM-Ranking-Notebooks-Smartpho...

[xioxox]

The PWM frequency is typically much higher for LCDs than OLEDs, if it is used, and much less likely to be a problem.