Samsung SDI will withdraw in phase from PM OLED business. The maker is considering the way to change existing production line into for other use like lighting panel production.
Such decision was made because in mobile phone market, its only market, it has been fallen behind LCD and AM OLED and decreasing panel prices have worsened profitability.

In last year, LGD suspended all PM OLED business, and Samsung SDI’s decision this time will leave only NeoView KOLON, heralding disappearance of PM OLED market.
Samsung SDI:
We haven’t made decision to whether suspend PM OLED business entirely or which products will be produced in that line.”

Samsung SDI is considering mass-producing OLED panel for lighting in 2G (370mmx470mm) second production line in Busan plant. It recently began R&D.

Lighting OLED business is only one to be considered. We will make a decision after fully looking at marketability and investment efficiency.

Source