The Samsung Galaxy S21 Ultra is the first phone to feature Samsung Display’s new more energy efficient OLED panels.
As seen by The edge, a Samsung screen launch explains that the S21 Ultra has a screen that consumes 16 percent less power. The company says it uses a “newly developed organic material” that allows “electrons [to] they flow faster and more easily through the organic layer of the screen. “
“Thanks to this process, OLED panels can create a brighter light while consuming less power, which improves battery life,” Samsung explained in the statement.
MobileSyrup’s Patrick O’Rourke noted in his review of the S21 Ultra that it had excellent battery life that easily lasted a day and a half with “moderate use.” Additionally, the S21 Ultra achieves better battery life than last year’s S20 Ultra, despite having the same size battery. While some of that can likely be attributed to the improved adaptive refresh rate, the new OLED technology may also have a significant impact.
Samsung confirmed to The edge that the S21 Ultra uses a low temperature polycrystalline oxide Display (LTPO). Interestingly, the Galaxy Note 20 Ultra also used an LTPO display, according to The edge, but Samsung called it a hybrid polycrystalline silicon oxide (HOP) display. It’s not entirely clear what the difference is between the LTPO panels, but Samsung Display’s claim that the S21 Ultra is the first phone to use it suggests that there is a significant difference between the two.
Also noteworthy is that recent rumors suggest that Samsung will be Apple’s sole OLED LTPO panel supplier for the 2021 iPhones. Apple will reportedly use 120Hz OLED LTPO panels on two of the four iPhones it launches this year (likely the ‘Pro’ models). ‘).
Before making the leap to smartphones, LTPO displays were popular in smartwatches, probably in part because of their efficiency. The edge says the Apple Watch Series 4 used an LTPO screen from LG, while the Galaxy Watch Active 2 from Samsung used a LTPO screen from Samsung Display.
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