J.K. Shin, the mobile chief, said that while the company’s Galaxy
S6 Edge smartphone has garnered strong demand, the screens are
difficult to make.
“We’re working hard to resolve the difficulty in supply,” he said
at a media event in Seoul ahead of the flagship phone’s global
launch on Friday. He added that the supply issue could persist
“for a while.”
My guess is this is why they released both the regular S6 and the S6 Edge — they knew they couldn’t produce sufficient quantities of this display. If it’s in short supply alongside the regular S6, it would have been impossible to release as the only design for the S6.