OLED displays on the new iPad Pro tablets are too grainy say users

Apple recently released the first iPad tablets to feature an OLED display. And this is not just any OLED panel, this is a tandem OLED display that stacks two layers of OLED to create a brighter and more durable screen. Without the need for a backlight, the top-of-the-line iPads are thinner with the 11-inch and 13-inch slates measuring 5.3mm and 5.1mm respectively. They are both powered by the 3nm Apple M4 chip.

Some are speculating that the grainy look is the result of a misalignment of the aforementioned tandem OLED display. Others say that the issue is the “mura effect” which appears on all OLED displays including those on smartphones. This occurs when thin-film-transistors (TFT) deliver different currents to the OLED screen with some cells not getting the proper voltage needed which leaves dark spots on the screen.

The lower ppi and the larger screen could make an issue with a tablet’s display stand out more than the same issue on a smartphone.