The display on the new Galaxy S21 Ultra is a big improvement over the panel of the Galaxy Note20 Ultra and in particular the Galaxy S20 Ultra.
For starters, it allows for variable refresh rate at the highest QHD + resolution. Samsung achieved this by increasing the clock speed of the MIPI display interface from 1157 MHz to 1462 MHz, in the same way OnePlus did last year with 8 Pro.
Guys at AnandTech decided to test the Galaxy S21 Ultra’s display and compare it to the OLEDs of the Galaxy S20 Ultra and Note20 Ultra, finding more interesting details in the process.
The first test involves a black screen. When faced with dimmer light (less than 40 lux), the Galaxy S21 Ultra will disable its variable refresh rate and lock the screen at 120Hz, which will increase power consumption. Whereas when the light is above 40 lux and the screen uses its variable refresh rate, it will consume less power than Galaxy S20 Ultra, but more than Galaxy Note20 Ultra.
Samsung would be able to further increase battery life if it found a way to keep the variable refresh rate at lower screen settings.
However, when tested with a full white screen, the OLED of the Galaxy S21 Ultra becomes much more efficient. In fact, it’s up to 31% more efficient than the Galaxy S20 Ultra. The Galaxy S21 Ultra’s screen uses less power at its peak brightness of 942 nits than the Galaxy S20 Ultra at a lower peak brightness of 778 nits. The Galaxy S21 Ultra also uses around 20% less power than the Galaxy Note20 Ultra at the same maximum brightness.
Finally, when set to a standard webpage, locked at 300 nits at 120Hz FullHD, the Galaxy S21 Ultra’s screen consumes 27% less power than the Galaxy S20 Ultra, which is arguably the improvement. that matters most.
This is all probably activated by the new OLED emitter of the Galaxy S21 Ultra. Samsung didn’t go into great detail on this, but that’s what makes the Galaxy S21 Ultra’s display so efficient and what allowed for such great battery life with the same 5,000mAh battery capacity.
Source | Via
