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by orbital-decay 1059 days ago
> E-Ink can achieve “real color” better than LED / LCD for design that is used in non electronic mediums.

Can it, though? What makes it able to, and what is the real color? When I hold a physical Pantone patch against my calibrated IPS display in proper viewing conditions, I fail to see any difference.

> Also glare.

My experience is that E-Ink readers have the same issues with glare as any other display, compared to paper which doesn't have it.
1 comments
mdp2021 1058 days ago
> the same issues with glare

True, but that is a property of the products, not of the technology. (It seems that they are not using external layers of the highest quality.)

So it may be possible to find an EPD display with a decent anti-glare finish. (It may also depend on the production batch.)

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orbital-decay 1058 days ago
It absolutely is the property of technology. You fundamentally need the see-through layer, and there's not a lot of materials that meet all requirements (optical transparency, durability, finish, coatings, etc); essentially it's plastics and glasses. In that sense, EPD isn't any different from other display tech.
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gamblor956 1058 days ago
E-inks do not require a glass screen; it's there for durability. See https://www.digikey.com/en/maker/blogs/2022/is-an-e-ink-disp....

Thus, the see-through layer is not a fundamental property of the technology; it is a property of the specific use cases of the device in which durability is required or expected.

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mdp2021 1058 days ago
Why would EPD be different from LCD natively shipped with anti-glare coating, or selected good matte films for our glass-based displays (e.g. "smartphones")?
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orbital-decay 1058 days ago
It isn't, that's my point. Both fundamentally have the same issues with glare, contrary to the OP claim that EPD is somehow glare-free. It can be mitigated a bit but getting to the glare level of actual paper (essentially zero) is probably not possible without major tradeoffs.
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mdp2021 1058 days ago
Ok - yes, you said that literally on your original - but then you interpreted as "property of technology" the parallel issue I was proposing.

What I intended to propose was, there may be unexpected glare issue with EPD display instances: you buy an LCD monitor and make sure that the matte coating is satisfactory; you buy a pocket computer and have a selected matte film applied to it; you buy an EPD display and go "it should be more anti-glare".

I said that this is inherent to the outmost layer that the producer chose for the product. To be that glare susceptible is not inherent in EPD as a technology. The product could be shipped at the quality level of good matte products or good matte films, or you could probably fix it with the best matte film available as you do with displays with front glass.

A good matte display (via coating in-factory or via film aftermarket) is not as glare free as paper, but it can come pretty close.

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