Curved LCDs can be used as contact lens screens
A new study by the University of Ghent from Belgium, gave a new impetus to the development of LCD displays that will be integrated into contact lenses and used as heads-up-display. Unlike LED displays, which can only display a few pixels, an LCD-based screen is able to form an entire surface image.
Yelle De Smet, the project’s chief researcher, reports that overcoming the difficulties of creating such a screen was not an easy task, which was solved by creating very thin spherically curved substrates with active layers capable of withstanding extreme casting processes.
The developers claim that such displays can be used to change eye color or as adaptive sunglasses. Although already now the prototype is able to display some simple shapes. And in the next few years, according to the creators, the lenses may well be autonomous.