It’s now almost certain that Apple will launch its next-gen iPhone model with relatively larger display than existing models 5S and 5C that feature just 4-inch display. The Cupertino based company has planned to launch the alleged iPhone models in September with 4.7-inch and 5.5-inch displays to take on the rivals in phablet segment.

Several reports emerging online indicate that the Apple’s suppliers are looking forward to start the mass production of iPhone 6 display in May, and the supplier will first produce the 4.7-inch displays followed by 5.5-inch later this year.

According to the report, the suppliers are facing difficulties with in-cell production technology for the larger 5.5-inch size, hence the production of such displays are delayed for several months. The company is also looking forward to use film sensor technology instead of in-cell touch panel in 5.5-inch display production.

Apple has reportedly partnered with Japan Display, Sharp and LG Display for its iPhone 6 display which would be based on in-cell touch panel technology–built into the screen and allowing for thinner construction than with standard touch panel films – that was introduced with the iPhone 5.