Customers try out the MacBook Air at the Apple Store in New York February 1, 2008. REUTERS/Shannon Stapleton

TAIPEI (Reuters) - Apple will take third-quarter delivery of newly developed 10-inch touchscreens from Taiwan, a source said on Wednesday, amid talk the U.S. firm is developing a touchscreen PC.

Taiwan touchscreen specialist Wintek already makes small screens for Apple iPhones, and has received orders for the larger ones that are roughly the same size as those used in mini PCs, said the source close to the Taiwan firm. He asked not to be identified because he was not authorized to talk to the media.

He added that he did not know what the final product would be, or who would make it.

Wintek spokesman James Chen confirmed Apple was a major client of his company, but declined to comment on any new product development.

Taiwan media reported this week that Apple, which has brought touchscreens to the forefront with the success of its iPhones, is currently developing a touchscreen PC, as lines begin to blur between sophisticated smartphones and traditional PCs.

Some of those reports have said that Taiwan’s Quanta Computer, the world’s top contract laptop PC maker, would manufacture the actual PCs for Apple.

Apple’s Hong Kong spokeswoman, Jill Tan, said the company did not comment on market speculation, while a Quanta spokeswoman also declined to comment.