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As technology has progressed, we have seen it grow considerably thinner, sleeker and above all, more mobile. From the use of liquid crystal display (LCD) screens with desktop and laptop computers in favor of thick and bulky cathode ray tube (CRT) screens, to the strikingly thin and lightweight qualities of the Apple Macbook Air, to tablets that are smaller and even more accessible on-the-go, our technology has evolved, just as we have.

Now, Apple is continuing to to tweak its technology for an even lighter and thinner version of its smartphone product, the iPhone. To do so, they have invested much time and effort into a new type of screen technology, called "in-cell" technology.

Currently, iPhones use "on-cell" technology, which consists of multiple layers, including a thick middle layer of glass that separates its LCD screen from the touch technology layer.

"In-cell display tech eliminates that middle layer of glass, combining the LCD and touch sections of the display into a single layer," explains tech writer Christina Bonnington in a recent article for Wired. "One way this can be successfully accomplished is by 'multiplexing' the electrodes normally used to relay touch input - that is, using the same electrodes to handle the signals for both touch control and the pixels of the LCD, according to a 2010 IHS report on touch-screen displays."

By utilizing this technology, Apple will very likely be able to cut down on some of the existing weight that a larger display screen (which they are hoping to add to the new iPhone) could carry. This in-cell technology will be produced by Toshiba and Samsung, according to Bonnington, who cites a recent Digitimes report, as well.

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