Shipments of the next-generation iPhone during the current quarter will likely fall under 15 million units, instead of hitting a 20 million unit figure previously forecast, claim supply chain sources contacted by DigiTimes. Part of the problem is said to be low yield rates for in-cell touchscreen panels. Earlier today LG Display announced that it's now mass-producing in-cell components; many of these could be headed in Apple's direction, given ties between the two companies.