The smartphone market is becoming more and more flexible with flexible displays. Break away from the simple ‘bar’ type smartphone and fold the screen, do not roll it, and push it out. While Chinese manufacturers such as Oppo and Huawei are releasing similar new foldable phones one after another, Samsung Electronics is currently researching new form factor technologies such as ‘rollable’. The patent published by the World Intellectual Property Organization (WIPO) on the 16th (local time) shows Samsung’s efforts to realize a large screen and portability at the same time. It has two ‘sliding’ displays, horizontally and vertically, that allow...