Market research firm DSCC says that BOE managed to dramatically increase its yields - which have tripled to over 30% by the end of 2018. The company is expected to continue and improve its yields which will reach, according to DSCC, to almost 60% by the end of 2019.

Flexible OLED yields, Q1 18 - Q4 19, BOE vs SDC (DSCC)
The increased yields enabled BOE to increase its flexible OLED production at its first B7 line from 125,000 units per month in Q3 2018 to almost 1 million panels per month in Q4 2018. BOE's main customer is Huawei - with its Mate 20 Pro. The increased yields means that panel production costs are falling - and DSCC actually expects BOE's production costs to fall below SDC's by the end of 2019 as BOE's fab costs are subsidized - as can be seen in the image below.

 Flexible OLED production costs, Q1 18 - Q4 19, BOE vs SDC (DSCC)

BOE's total capacity will still be significantly lower compared to SDC's capacity. But the increased yields will mean that BOE will start production at its new OLED line (the B11 in Miyangyang) during 2019.