An other issue is also power consumption.
For TVs it makes not as much of a difference and you can use oled on a developer notebook (like mine) where everything is using some sort of dark mode. Yet for normal usage like web browsing black text on white, oled has worse battery life than 4k LCDs.
The new XPS OLED is quite poor in battery life.
It may still be preferable for people running mostly dark modes but I don't see this becoming mainstream.
Currently shipping OLED laptop screens are now inferior to currently shipping MacBook Pro displays in most key parameters such as brightness, gamut, color accuracy and power consumption. The OLED displays do have better contrast and deeper black levels.
This is not true. Look at the comparison of the new DELL OLEDs. MacBook Pro displays wash out (colors) at high brightness levels while oleds stay colorful. Gamut of OLEDs is better period and it stays the same on different brightness levels while it does not on the current MBP displays.
But Displays could still get better if they used Qauntum dot tech like on the Samsung TVs. So these aren't the peak of LCD tech yet.
I also think that some quantum dot enhanced LCD panels are the best solution for next gen LCDs Notebooks. No burn in, high brightness and efficiency. Contrast really isn't as important (as in good enough with 1000:1) as on a TV, where you watch movies in dark rooms.
Colors would be on par.
I am curious though how battery life on a OLED developer notebook is when you are on dark mode settings in editors and such.