Simple answer - oled/(something)led are much better at daylight, because lcd have semi-transparent layer of electrodes over display, where lost about 20% of lig

Simple answer - oled/(something)led are much better at daylight, because lcd have semi-transparent layer of electrodes over display, where lost about 20% of light. If somebody invent cheap lcd without electrodes on cover glass (may be all electrodes on back side), things could change, but for now people buy lcd because of cheapness.