The flexible display technology is still at its infancy thus it still needs much development. While the
Samsung Galaxy Z Flip looks promising, it still retain one of the major defects of flexible displays -
folding creases. The flexible screens in foldable smartphones are usually made of plastic. Thus creases have become an indisputable defect in the use of these devices. However, we very much hope that the Samsung Galaxy Z Flip will be an exception because it uses a unique Ultra-Thin Glass overlay. However, this is not the case because we can see an obvious crease in the middle area of the phone screen.