[Groxx]

Though I'm not discounting that it may in fact be dimmer:

Larger gaps alone implies dimmer, but this can be accounted for by having the pixels put out more light. Having larger gaps on a display doesn't mean it's dimmer, as the pixels have likely changed characteristics in the process of shrinking them.

[ugh]

(It’s, by the way, not that the gaps got necessarily bigger, maybe a little, it’s just that they didn’t shrink either and, with more pixels, there are also more gaps.)