Apple iPhone X was supposed to start OLED boom, but it didn't work

Samsung's display subsidiary is one of the few manufacturers capable of churning out tens of millions of OLED panels each year for both itself and Apple

A bright future lies ahead for OLED. When that starts, and how long it lasts, is less clear.

Organic light-emitting diode screens have been touted as the future of smartphones because they’re crisper and easier on batteries than their liquid-crystal predecessors. Late last year, as Apple Inc. prepared its OLED iPhone X, suppliers led by  Samsung Electronics Co. rushed to ramp up production.

Now, there’s concern about over-supply and price cuts. The iPhone X didn’t sell as well as Wall Street anticipated and Samsung, the top OLED supplier, expects to ship about half the units planned to Apple, according to