DigiTimes relays a report from Economic Daily News which identifies Wintek as the touch panel supplier for white iPhone 5s:
Wintek reportedly to be the sole touch panel supply for white iPhone 5s and may replace TPK Touch Solutions to become the leading touch panel maker worldwide in 2011 as Apple plans to focus on white models for the iPhone 5, according to a Chinese-language Economic Daily News (EDN) report.
It seems Apple will still be working on offering a white model for the next generation iPhone after being unable to deliver one for the iPhone 4. The iPhone 4 has yet to see the launch of the white model which has been rumored to be suffering from color consistency issues.