4 ms·
What is the highest PPI, pocket-sized, e-ink display? I'm imagining a 3.5" handheld device for kids, that can't be broken. Very low power. Could show comics or
by peterburkimsher 4y ago
What is the highest PPI, pocket-sized, e-ink display?
I'm imagining a 3.5" handheld device for kids, that can't be broken. Very low power. Could show comics or other graphics, but usually just text.
The maximum information density would be to fill that "cheat sheet" with Traditional Chinese characters, written top to bottom, left to right. And that depends on the PPI.
https://www.quora.com/Can-literate-Chinese-people-easily-read-vertical-writing https://www.quora.com/Can-literate-Chinese-people-easily-rea...
- robin_reala 4y agoI’m living proof that it’s possible to break e-ink displays without any real effort.
- peterburkimsher 4y agoAre they stronger than LCDs?
- robin_reala 4y agoI’ve broken more e-ink displays (2) than LCDs (0?), but it could be because they ereaders tend to be left in unexpected places. But either way, they’re not tricky to crush, and the failure mode is much the same as LCDs.
- AlanYx 4y agoE-ink panels come in two types, one with a flexible backplane and one with a rigid blackplane. The former are durable and resistant to blunt blows; the latter are not. The ones with a flexible backplane don't necessarily require a rigid polycarbonate covering layer; there are commercial devices like the Fujitsu Quaderno that just use them raw. But if you were targeting young children who might take sharp objects to the screen, you'd want to use a covering layer.
- peterburkimsher 4y agoThank you! I think a flexible backplane is good for wearable electronics, and a rigid covering layer (polycarbonate or glass) is better for typing on a keyboard.