IT Home reported on May 18 that after some users opened the box to experience the Apple M4 OLED iPad Pro tablet,Feedback image looks grainy, some users guess that it may be caused by the dislocation of double-layer serial OLED technology.
However, there are also user feedback that this problem may be caused by Mura Effect, which is a common problem of all OLED screens, mainly due to uneven brightness/color.
When thin film transistor (TFT) supplies different current to OLED display screen, some units cannot get the appropriate voltage required, thus leaving black spots on the screen. This phenomenon occurs.The relevant pictures attached to IT Home are as follows:
On Reddit, a user with the user name YogurtclosetKey5633 wrote:
Has anyone noticed particles on the new in-line OLED display.This phenomenon is especially obvious when you enter the setting in a dark room without reflection.On my screen, I noticed something that looks like particles, but you must look at it from a very close distance.It's very obvious to me, because I do graphics processing.Is it a case of my screen, or have other people encountered this situation?
Netizen dtaromei thinks this is caused by the resolution. The pixel density of the iPhone 15 Pro is 460 ppi, while the pixel density of the iPad Pro 11 inch is 264.In addition, it has a larger screen.
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