It is a 5.4mp display of 1280×1024, larger than the Sony A77 that is 1,024 x 768.

PhotoRumors

MicroOLED Website

With the industry moving towards the Micro Display over the Optical Display, this is good news.

With this advance in Micro Displays, we should see more camera makers working on EVF replacements for Optical VF in the next few years.

Image taken from Photo Rumors