In its bid to release OLED display iPhones next year, Apple was led to a Japan-based company that single-handedly produces screens with organic light-emitting diodes: the Canon Tokki Corp.

This was after Apple planned to break free in ordering panels from Samsung Display to prevent leakage of design information. The Cupertino tech giant OLED-screen iPhones will be its flagship device during its 10th-anniversary celebration. However, this won't happen as fast as Apple wants it to be.

Canon Tokki also supplies OLED-making machines to various companies such as Samsung Display Co., LG Display Co., and Sharp Corp. If Apple decides to take a piece of the pie on the limited supply of OLED machines, it has to queue and hopes that the growing backlogs of Canon Tokki could end in the shortest possible time.

According to Bloomberg, these production bottlenecks for the acquisition of the highly sought OLED-making machines raised doubts on whether or not Apple could release an OLED display iPhone next year. The current waiting time for the $85 million machine purchase is about two years away.

The only promising option left for Apple if it insists on releasing OLED iPhones in 2017 is to maintain its existing relationship with Samsung Display, the only source where it can procure the highly sought parts with haste. The problem is, Samsung Display is only capable of supplying less than 100 million units of curved OLED display. This is less than half than the 200 million plus units Apple sold annually.

OLED technology has been the latest innovation in high-end smartphone development. Compare to LCDs, OLED screens are thinner as compared to others. It also have sharper images, improved contrast, and better battery life. OLED screens are flexible plastic, allowing the manufacturer to bend or create new shapes from it like Samsung Galaxy S7 Edge.

Watch the prototype of Apple's iPhone 8 here: