iPhones sell massively well though, to the point where it would be a big loss if Apple went to another company for their screens. You just can't screw with a company the size of Apple without consequences. It's not like they'd go "oh no, no more iPhone now I guess :'(" if Samsung decided not to sell them screens anymore.
The problem is more with smaller companies that could be destroyed before they even get a chance to compete. Those can be bullied pretty easily by a company the size of Samsung.
I don’t really see how it works both ways. It’s hard to imagine a bigger scarier competitor to Samsung than the Apple iPhone, yet we agree Samsung is happy selling screens to Apple.
I recall reading a breakdown at one point a few years ago that indicated that between screen, fabs (before Apple went for TSMC) and memory, Samsung made more money from each iphone sold than they did for each galaxy S phone of the time. Seems like a winning deal to me.
The problem is more with smaller companies that could be destroyed before they even get a chance to compete. Those can be bullied pretty easily by a company the size of Samsung.