Citizen Finetech Miyota have developed an Electric View Finder which it claims is currently the highest resolution available.
The Citizen Finetech Miyota EVF has a 1280x960 pixel display, which is equivalent to 3.69 million dots. This is considerably more than the 2.36 million dot resolution of rival EVFs from Sony and Epson
The panel will have sequential design, showing red, green and blue information in a sequence rather than showing them at the same time. The 120Hz design should help the unit avoid colour breakup, or tearing, according to the company.
The panel should enter production in summer 2013.
Take a look at the translated press release here: Citizen Finetech Miyota