Last month Samsung said that it will launch smartphones with curved display in October.
The company is headed for its worst annual profit in three years, under siege as Chinese firms like Xiaomi and Lenovo reel in buyers with full-function touch-screen smartphones that are cheaper.
Suppliers to Apple Inc are scrambling to get enough screens ready for the new iPhone 6 smartphone as the need to redesign a key component disrupted panel production ahead of next month's expected launch, supply chain sources said.
The panel producers did not receive Apple's certification, as they were given strict power-saving requirements.
India has been opposing the pact as ITA will only benefit the country when its domestic manufacturing is robust.