Over a month has passed since Apple launched its latest flagship smartphone devices, the iPhone 6 and iPhone 6 Plus, and already the rumor mill is abuzz about the release date and specs of a purported iPhone 7.

According to one report, the iPhone 7 may feature the latest three-dimensional display technology, but users would not be required to wear special glasses to use it. It also claimed that Apple will be collaborating with the Taiwanese firm TPK to develop the unique technology.

Recently, the Taiwanese financial website Economic Daily News reported that Apple is "actively" working to develop a 3D "hardware and software" environment. It further reported that the company has asked TPK, its longtime display supplier, to assist in developing the new screen for the 2015 iPhone edition.

Economic Daily News also claimed that the current touch-screen technology, which has been used by Apple since the launch of the iPhone 5, will not be effective in developing the "naked eye 3D screen," which is likely to feature in the next iPhone.

While it is very early to hypothesize whether the upcoming iPhone will feature 3D display, the claim does not seem to be exaggerated, as the company has shown keen interest in 3D technology on earlier occasions.

Apple submitted an appliaction for a patent related to glasses-free 3D stereoscopic display in 2008. The new technology, which would not require the user to wear special glasses, was said to be meant to deal with issues in previous 3D devices.

A report by MacRumors stated that this technology involved pursuing the user in order to create proper renderings of 3D images irrespective of the position of the user.

In August 2013, the U.S. Patent and Trademark Office purportedly published an Apple patent concerning a technique of generating as well as manipulating 3D objects on a computing device. In April this year, the USPTO published another Apple patent application submitted for an "Interactive three-dimensional display system."

This technology described a more advanced method that could be used by the consumers to view as well as manipulate 3D images with various gestures like touches and swipes.