According to IHS Technology it has only taken 24 months for AMOLED production costs to fall below that of LCD. Production costs in the first quarter for a five inch Full HD smartphone display are $14.30 for an AMOLED panel and $14.60 for an LCD display.
These figures are based on production costs of a Low Temperature Poly-Silicon Liquid Crystal Display LTPS LCD which is the most efficient type of Thin Film Transistor (TFT) LCD. While there is no data available on the production cost of QHD displays, Full HD is still the standard display definition for the vast majority of smartphone screens.
With AMOLED production costs dropping below LCD for the first time, AMOLED panels will soon become the default display technology choice for manufacturers on their mid-range and entry-level devices as well. While this may not directly signal the end for LCD screens in the smartphone space.
It might be that now that they are so cheap Apple might install them on its iPhone, charge an arm and leg for it claiming it invented it.