E Ink has developed a 2nd generation Advanced Color E-Paper • Hacker News Board

Re: E Ink has developed a 2nd generation Advanced Color E-Paper

#191

Post by zimpenfish » Tue, Jan 19, 2021, 9:07 PM UTC

Groxx wrote: post #187

zimpenfish wrote: post #182

Earlier quoted context omitted.

> you get color at 1/3 the resolution of black and white, but "normal" refresh rates. It might be "normal" refresh rates but it takes multiple refreshes to generate colour output compared with mono. It is an awful janky experience.

Not with Kaleido, it's a normal monochrome eink screen underneath. The color filter on top changes in something like 1ms, it's invisibly fast. ACeP and the other black/white/(red|yellow) "color" inks do require multiple cycles though, and yeah - wildly unusable for reading purposes.

I have a Pocketbook Colour which uses E Ink Kaleido and it takes multiple refreshes to correctly display colours - there's 3 or 4 flashes on the coloured areas.

Go to about 3:57 on this video and watch the book covers flash on and off as they do multiple refreshes - easier at 0.25x but still visible in real time.

https://goodereader.com/blog/product/pocketbook-color-e-read...

Re: E Ink has developed a 2nd generation Advanced Color E-Paper

#192

Post by rubatuga » Wed, Jan 20, 2021, 6:24 PM UTC

Grustaf wrote: post #71

rubatuga wrote: post #44

Earlier quoted context omitted.

No, still RGB. We're not mixing pigments, just using subpixels.

The printed dot in a CMYK raster doesn't mix pigments either!

They are subtractive, so it’s the same as mixing pigments.

Re: E Ink has developed a 2nd generation Advanced Color E-Paper

#193

Post by Grustaf » Fri, Jan 22, 2021, 10:45 AM UTC

rubatuga wrote: post #192

Grustaf wrote: post #71

Earlier quoted context omitted.

The printed dot in a CMYK raster doesn't mix pigments either!

They are subtractive, so it’s the same as mixing pigments.

Yes, that’s my point, that not just mixing physical paint acts subtractively!

Re: E Ink has developed a 2nd generation Advanced Color E-Paper

#194

Post by rudolph9 » Thu, Jan 28, 2021, 4:21 PM UTC

Qwertious wrote: post #150

rudolph9 wrote: post #118

Earlier quoted context omitted.

It’s important to remember every laws has trade offs, including patent laws. Perhaps patents stiffened e-ink but OP seems to have issue with patents in general which it would be hard to argue universally prevent innovation.

The purpose of patents is to give innovators a temporary competitive advantage, by forcing competitors to pay royalties for the patent. The main problem is "temporary", as patents have a flat duration but fields innovate and turn over at different speeds - compare web software to aeronautics/NASA software. The former could potentially he outdated within months, the latter likely won't be used until it's been tested f…

Your response makes me think of the phrase “More Perfect”.

Agreed, patents are flawed. But so is basically every law in the United States. However, laws can change and we have influence on that so rather than chalking the idea of patent law as “fundamentally flawed” let’s look at ways we can tweak the existing system to work better for everyone.

For example, one commenter had an interesting suggestion of increasing the patent fees exponentially over time incentivizing only orgs that are using the technology and disincentivizing trolls long term.

It that tweak perfect? of course not, but rather than viewing it as an all of or nothing game of us vs them let’s keep working together to make it “more perfect”.