Apple is expected to release its newest iPhone generation this September, including an OLED model. However, the company reportedly will use OLED display screens for all iPhone models by 2019, sources in Apple’s supply chain told Korean news site The Bell.

Apple is expected to implement OLED panels on 60 million units of the iPhone 8 this year, about 40 percent of its total manufacturing number, the report said. Next year, Apple will double its adoption of OLED displays to 80 percent, and go up to 100 percent in 2019.

Meanwhile, Samsung and Interflex have invested in equipment to prepare for flexible printed circuit boards (FPCB) for Apple iPhones. Samsung has begun expanding its plant in Vietnam, the report said.

Apple is expected to release two iPhones with LCD panels this year and the iPhone 8 (or iPhone X) with an OLED panel which could stretch across the entire front of the device, meaning the iPhone might be priced at more than $1,000.

As for casing material, Apple is rumored to release the 4.7-inch iPhone 7S with aluminum casing and a 5.8-inch iPhone 8 with a glass casing reinforced with a stainless steel frame, according to a February DigiTimes report. The casing for the 5.5-inch iPhone has not been confirmed as of yet.

Other rumored features include face recognition, improved 3D Touch, and dual lens cameras on the 5.5-inch and 5.8-inch models.