Advanced LTPO technology in the Apple Watch Series 10 display differs from previous generations, and future iPhone releases may get the new display.
Apple updated the Apple Watch to Series 10 in early September, making a number of changes to the form. One of the lesser spoken-about changes is actually part of the display, with Apple upgrading a quite important element.
The low-temperature polycrystalline oxide (LTPO) thin-film transistor (TFT) is a backplane technology that enables for dynamic refresh rate adjustment in an OLED screen. It’s what allows the Apple Watch to have an always-on display.
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Source: AppleInsider News