Oppo has filed an insane patent for a smartphone with a retractable screen
There are patents that make the public want the concept to be implemented quickly. On the other hand, there are patents that baffle and leave you scratching your head over the thinking process that led to such a strange idea. Oppo's latest patent undoubtedly falls into the latter group. We've seen more than one dual-screen smartphone, but Oppo's idea of ββa pop-up secondary display is definitely [β¦]