The highest possible resolution for printed colour images is determined by the diffraction limit of visible light. To achieve this limit, individual colour elements (or pixels) with a pitch of 250 nm are required, translating into printed images at a resolution of ~100,000 dots per inch (d.p.i.). However, methods for dispensing multiple colourants or fabricating structural colour through plasmonic structures have insufficient resolution and limited scalability.

An animated view of Landa Nanographic Printing technology. See how Landa NanoInk is ejected onto paper.

More info at:
http://www.landanano.com
Printing colour at the optical diffraction limit

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