Presumably they're making the leap that this printing technology can be leveraged to develop an alternative display technology that would change the structure in real time, kind of like color e-ink displays.
It's quite the leap, but that's science communication for you!
IMOD’s (like Mirasol, which was abandoned) are pretty neat:
https://en.wikipedia.org/wiki/Interferometric_modulator_disp...
https://goodereader.com/blog/electronic-readers/the-rise-and...
Especially since the breakthrough was to encapsulate the colored bits to keep them from clumping.