Comment by cubefox

I wonder why local dimming zones remain so limited in LCDs. This one has 4032, which corresponds to a background LED resolution of only 84×48. That's about 90×90 (over 8000) colored LCD pixels per white background LED.

This is far too coarse to accurately resolve fine differences in HDR brightness, e.g. from lamps, car lights, street lights, specular highlights etc.

Perhaps the background LEDs are still relatively costly? Or customers just don't care enough to justify putting in significantly more? Which is unfortunate, since although OLED monitors have perfect fine HDR contrast, the overall achievable screen brightness is quite low compared to LED LCDs.

Which makes both technologies suboptimal for HDR content, for different reasons.