3 ms·
I don't understand why the refresh latency is so absurdly high...can somebody ELI5 why there's not even 1 frame/second possible with eink displays?
by cookiengineer 6y ago
I don't understand why the refresh latency is so absurdly high...can somebody ELI5 why there's not even 1 frame/second possible with eink displays?
- NathanOsullivan 6y agoThis particular screen is slow even by e-ink standards
- PurpleFoxy 6y agoIt’s not slow compared to other 3 color displays. I have tested some from another brand and the b/w version was 2 seconds and the black/white/yellow version was 15 seconds
- candiodari 6y agoBecause of the weight of the particles that are being moved. They have to shake them, move them a bit, shake them again, move them a bit again. Moving a blob of plastic takes a lot more energy than what LCD's do: who just moves something like 1 electron per 10000 in the layer between the polarization filters. The way multicolor e-color displays work is by having multiple size/weight particles that are moved by different field strengths, but require being even more careful (because every field, shaking and moving, will move every particle)
- generj 6y agoOften for eInk screens the problem with speed is the driver (either code or chip), not the paper itself. For example, many drivers don’t support partial refreshes. I just bought the B/W version of this screen and read the data sheet. Internally, it is four different screens. So I think (haven’t yet received it) each quadrant takes about 2 seconds to refresh (2 seconds is a pretty common refresh time for eInk). A better driver could do all quadrants at once for a ~2 second refresh.