Recent mobile phones seem able to replace a PC, a video camera, an ebook reader, a navigator, anything. But how to use all their features in a convenient and efficient way? This technology is facing substantial challenges that increase with the complexity of its applications. The usability of small displays is very limited and large displays are inconvenient for mobile applications.
Technology may soon be improving and changing. Spatial screens could be eliminated in favor of near-eye displays, glasses with a tiny addition that could weigh less than 20 g, and could allow for a multitude of new applications.
Displays of this kind may at some point replace most of today’s user interface hardware, ...
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