A new patent document shows that apple is developing a protective layer to resist cracking of folding displays and improve scratch resistance and durability. The U.S. patent and Trademark Office application, titled hybrid overlay / window architecture for flexible display applications, outlines how curved, flexible, or foldable display modules can use protective hard coatings to avoid cracking. Apple seems to be looking for a remedy for cracked displays on some Samsung devices. < / P > < p > the patent points out that in general, glass fracture starts from the presence of microcracks. Apple’s hard coating will fill in the pre-existing microcracks, thus making severe cracks more difficult to develop. Additional protection will be placed directly at the top of the display. It will be designed to have enough hardness and tensile strength to act as an external protective layer for electronic equipment. Therefore, the hard coating layer has enough durability and high puncture and scratch resistance;. < / P > < p > the photos attached to the patent include a simple illustration of a foldable device, with screens that fold inward and outward. Although Apple’s foldable devices don’t seem to be around soon, the company has been working hard to develop the technology. According to reports, apple ordered a large number of Samsung foldable display samples in September. < / P > < p > in 2019, apple strengthened the glass on iphone11 and iPhone 11 pro, and this year’s iPhone 12 and iPhone 12 pro, the company launched ceramic shield. It is reported that ceramic shield is a kind of reinforced glass, which can improve the drop performance by four times. As a result, the patent seems to show the intersection between Apple’s separate research on glass durability and foldable displays. Global Tech