Interesting links about possible manufacturer:
Q: Sony and eMagin are already producing higher resolution microdisplays (even HD ones). Do you think there's still a market for WVGA resolution displays?
A: Actually we are looking at the number of independent pixels, and our 0.38” 1.7m pixels microdisplay has more pixels than a SVGA and in addition it is more compact. Our customers constantly remark upon the benefit of this high pixel density because the results are very visible. Some are even using our 1.7m pixel microdisplay as a reference in resolution and have begun choosing it over a competing XGA OLED microdisplay. This is due to the fact that we have very fine pixels.
It also means that GH3 viewfinder is actually LOWER resolution
As OLED EVF used has 1744000 dots / 4 (RGBB) = 436 000 pixels (872×500)
Instead GH2 one has 852×600 resolution with 511 200 pixels.
For movie recording OLED one is even better, for main 4:3 mode it is not so.
MicroLED is using RGBB filters, but oleds are all white.
We can hear conflicting claims here.
At spec sheets we see claims about 4 CPU cores inside.
But in US managers interview it became 3 CPU cores 