Apple launches M4 iPad Probrings an OLED screen to the iPad Pro model for the first time. This screen, called the “Ultra Retina XDR display”, makes the body significantly thinner and lighter. The tandem OLED technology (Tandem OLED) is not only The OLED that everyone often hears is so simple.
The use of OLED displays for tablets is not new, but the OLED screen display of the Apple M4 iPad Pro uses stacked OLED technology, which is relatively rare at present (previously it was only used on the HONOR Magic6 RSR PORSCHE DESIGN mobile phone). Literally, it means stacking two OLEDs together (of course it will be easier to remember if it is called an Ultra Retina XDR display!) This will significantly increase the brightness of the screen, allowing the iPad Pro to have an SDR of 1,000nits The normal brightness of HDR and the peak HDR brightness of up to 1,600 nits are in line with the previous generation iPad Pro that uses a mini LED screen with a backlight substrate. It solves the problem of low brightness of OLED screens and improves the viewing performance under strong light. And a contrast ratio of 2,000,000:1, bringing better picture quality.
Some people may ask, if two OLEDs are superimposed to increase the brightness, will the energy consumption be doubled? In this case, each OLED does not need to be lit “100%” to achieve the required brightness. In other words, energy consumption will be reduced (with the new processor, the M4 iPad Pro has the same usage time as the previous generation). It can also greatly reduce the “burn-in” problem that worries OLED screens and extend the life of the screen. Only the variable refresh rate specification does not support the AOD always-on display function, which is a shortcoming. In the long run, if Tandem OLED succeeds on the M4 iPad Pro (and solves the production capacity problem), I believe Apple will apply it to future MacBooks, and there should be thinner and lighter models available to everyone.
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