Do you mean by simply raising the price? Technically yes, but it won’t sell if the quality is lower than the OEM requirements, especially if a competitor can make similar quality panels for cheaper.
Exactly. Until recently their yield rate of low cost/low quality displays were much higher while their yield of high cost/high quality displays were very low (below 20% vs Samsung’s 80% for equivalent OLED panels). This makes it financially unfeasible for BOE to make high quality panels below production costs while still competing with Samsung. From most reports I’ve seen so far they’ve improved their yield of equivalent high quality panels enough this year (to around 60% to 70%) to be competitive.
I have and I can’t find any recent reports that can corroborate your claims when it comes to equivalent cost panels, but I would like to read it if you can provide any. BOE has made LCDs for Apple for years at the point for the iPad, and I’ve yet to see any reports that it became worse because it was made by BOE rather than someone else, so I don’t think Apple has sacrificed cost for quality so far with BOE.