>>285385348
I know, but if you increase the pixel density (pixels per degree) then sub-pixel density (sub-pixels per degree) increases at the same time. You also have to keep in mind pixel fill since pixel density can increase while pixel fill increases, giving you still the same amount of SDE. However in practice, pixel fill does generally seem to increase with increasing resolution, but it doesn't have to necessarily. 

In practice, the current best OLEDs in a consumer VR headset are noticeably less sharp and have significantly more SDE than the current best LCDs in a consumer VR headset, but it's not too hard to imagine that the next "generation" of OLEDs may catch up to current LCDs in terms of SDE of sharpness.