Idemitsu Kosan announced that LG's latest OLED TVs use the company's materials. Idemitsu and LG have a strategic OLED alliance in place since 2009, and the two companies signed a mutual-cooperation agreement and patent licensing in 2014.
Earlier this month UBI estimated that Idemitsu Kosan's OLED material sales grew from around $50 million in 2014 to around $80 million in 2015. Idemitsu's OLED material shipment to LG are probably what's behind this large increase as LG is ramping up its OLED TV panel production
In early 2016 we posted an interview with Idemitsu Kosan's electronic material's chief.