Apple Inc is designing and producing its own device displays

 A visitor tries out an iPad at an Apple store in Klang, outside Kuala Lumpur, Malaysia. IPads and other other electronic devices containing nickel might cause rashes, according to a Monday, July 14, 2014 report  (AP Photo/Lai Seng Sin, File)

Apple Inc is designing and producing its own device displays for the first time, using a secret manufacturing facility near its California headquarters to make small numbers of the screens for testing purposes, according to people familiar with the situation.

 The technology giant is making a significant investment in the development of next-generation MicroLED screens, say the people, who requested anonymity to discuss internal planning.