If you remember, the first-gen folding screen smartphones of both Samsung and Huawei have been delayed several times because of various issues related to the display. After all, they were out and this new form factor has become very popular. Moreover, with every iteration, they become more mature. In this regard, there are leaks that the upcoming Samsung foldable smartphones will improve the displays a lot. Particularly, the forthcoming Samsung Galaxy Z Fold 4 will have a less prominent display crease than the Galaxy Z Fold 3.
A very reliable source has already captured the inner foldable display of the Samsung Galaxy Z Fold 4 on camera and shared it on Twitter.