There is still much confusion about the different technologies used in the current screen, but is not so hard to understand the differences between LCD and OLED screens – as explained in Raymond Soneira of DisplayMate.
LCDs greatly evolved over the past decades. Some still remember the old portable LCDs screens that move the mouse did disappear the mouse pointer due to the slow reaction of the pixels, which means that if they had to create “effects” such as trails mouse who were leaving behind a trail on the screen for easier location of the mouse. But even with all the advances that have brought us the IPS LCD panels and resolutions 4K (even smartphones), will be only a matter of time before these screens are made obsolete by the OLED. It is the technology of OLED is much simpler and potential for improvement than LCDs.
In OLEDs, basically we have each pixel (or rather, the sub-pixel RGB) to emit their own light – that a panel measuring just tenths of a millimeter thick; in LCDs, we need a light source, multiple layers of filters, diffusers, polarizers and reflectors. The complexity is not only bigger, as it has no chance of competing with the incredible contrasts that OLED can get (a pixel black is completely shut down, while a LCD have a pixel that is simply trying to cover the light that is always tied behind him.) After we still have other advantages such as the pixel response time, viewing angle, color reproduction at different levels of intensity, etc. etc. Anyway … come from there 4K OLED screens 60 “at decent prices, which we will be here waiting for them.