The Nikkei Asian Review says that Samsung's OLED shipments to Apple for its iPhone X dropped to only 6 million panels in Q2 2018 (April-June). In Q1 2018, it was estimated that SDC produced almost 20 million panels for Apple. NAR says that SDC expected to ship around 12-15 million panels to Apple's iPhone X in the quarter, so this is a major disappointment for Samsung.
According to this report, the sale's of Apple's iPhone X has been much lower than expected in the past quarter. Apple, however, will reportedly release two new OLED smartphones in 2018 - and in June 2018 DSSC said that SDC's flexible OLED fabs utilization rates have been recovering, as SDC started to produce panels for Apple's 2018 phones, and Samsung's own flagship phones.