Market research company Newzoo has started to track the OLED smartphone market, and the company's analysts say that over a billion smartphones with OLED displays have been shipped - up from 720 million in July 2016. OLED is the display of choice for high-end smartphones, and OLED displays take up 30.4% of the total smartphone display market (up from 26.2% in June 2016).OLED smartphone market share (June 2016 - July 2018, Newzoo)

Looking at smartphone brands, NewZoo says that Samsung accounts for 70.5% of the market (smartphones with OLED displays, that is) - down from 87% in July 2016. Samsung is followed by Oppo (9%), Vivo (9% as well) and Apple (around 5%).

OLED smartphone by brand (June 2016 - July 2018, Newzoo)

Kyulux - Hyperfluoresence OLED emittersKyulux - Hyperfluoresence OLED emitters