Suppliers to Apple are scrambling to get enough screens ready for the new iPhone 6 as the need to redesign a key component disrupted panel production ahead of next month's expected launch, supply chain sources said.

It’s unclear whether the hiccup could delay the launch or limit the number of phones initially available to consumers, the sources said, as Apple readies larger-screen iPhones for the year-end shopping season amid market share loss to cheaper rivals.

But the issue highlights the risks and challenges that suppliers face to meet Apple’s tough specifications, and comes on the heels of a separate screen technology problem, since resolved, in making thinner screens for the larger iPhone 6 model.

Apple has scheduled a media event for September 9th, and many expect it to unveil the new iPhone 6 with both 4.7 inch (11.94cm) and 5.5 inch (13.97cm) screens – bigger than the 4-inch screen on the iPhone 5s and 5c.

Two supply chain sources said display panel production suffered a setback after the backlight that helps illuminate the screen had to be revised, putting screen assembly on hold for part of June and July. – (Reuters)