Sharp President Tai Jeng-wu claims that Apple will switch to OLED screens for future iPhone models, Nikkei Asian Review reports. Tai—who is also an executive at Apple supplier and manufacturing partner FoxConn—told a group of students at Tatung University, “The iPhone has been evolving and now it is switching from LTPS (low-temperature poly-silicon) to OLED panels. We don’t know whether Apple’s OLED iPhones will be a hit, but…