Live data from Hacker News

E Ink Waveforms are a closely guarded secret

goodereader.com

21–30 of 138 posts

Re: E Ink Waveforms are a closely guarded secret

#21

E Ink seems to be one of the technologies that is hampered solely by patents. It's too sad that we're only going to get major innovations in e ink tech in 15-20 Years...

You can't keep things secret by patenting them. These are trade secrets, which last indefinitely. However, trade secrets are granted fewer protections.

Re: E Ink Waveforms are a closely guarded secret

#22
post #17

Recently, I brought a Dasung paperlike HD to use as a monitor. (crazy expensive, prob should've spend money elsewhere...) I thought some things were impossible with eink, but it proved me wrong. (video in a reasonable fps) It has a few different ways of display. For example: Floyd–Steinberg dithering: essentially only black and white with dithering, and the speed pretty good. A16: uses 16 shades of grey, but the spee…

Why would you use an e-ink display for videos? The main advantage is the low power consumption because it needs power only to refresh, using it for a video it will negate that advantage and draw much more power than a traditional display with an awful image quality...

Re: E Ink Waveforms are a closely guarded secret

#23
post #17

Recently, I brought a Dasung paperlike HD to use as a monitor. (crazy expensive, prob should've spend money elsewhere...) I thought some things were impossible with eink, but it proved me wrong. (video in a reasonable fps) It has a few different ways of display. For example: Floyd–Steinberg dithering: essentially only black and white with dithering, and the speed pretty good. A16: uses 16 shades of grey, but the spee…

What fps do u get on those modes?

Re: E Ink Waveforms are a closely guarded secret

#25
post #17

Recently, I brought a Dasung paperlike HD to use as a monitor. (crazy expensive, prob should've spend money elsewhere...) I thought some things were impossible with eink, but it proved me wrong. (video in a reasonable fps) It has a few different ways of display. For example: Floyd–Steinberg dithering: essentially only black and white with dithering, and the speed pretty good. A16: uses 16 shades of grey, but the spee…

Why would you use an e-ink display for videos? The main advantage is the low power consumption because it needs power only to refresh, using it for a video it will negate that advantage and draw much more power than a traditional display with an awful image quality...

1. Currently, I use it for writing code and reading papers. However, I still want the monitor to be a good enough drop-in monitor for things I need to occasionally do. For example, I need to switch to a browser window to check what was that error I'm getting.

2. Visual snow syndrome: Many had their first experience of visual snow after staring into the screen for too long. People who believe in that is the cause of visual snow would want a screen that does not emit light.

Re: E Ink Waveforms are a closely guarded secret

#26

Is it really "closely guarded", or "worst guarded"? Anyone with a logic analyser and a few hours can probably figure it out easily enough... and some have even gone beyond what the official controllers can do: https://hackaday.io/project/11537-nekocal-an-e-ink-calendar/... (previously discussed at https://news.ycombinator.com/item?id=16140284 ) More research from others: http://essentialscrap.com/eink/ https://news.y…

Presumably they mean waveform design is a closely guarded secret. At least that's what the quote at the end implies.

Re: E Ink Waveforms are a closely guarded secret

#28
post #17

Recently, I brought a Dasung paperlike HD to use as a monitor. (crazy expensive, prob should've spend money elsewhere...) I thought some things were impossible with eink, but it proved me wrong. (video in a reasonable fps) It has a few different ways of display. For example: Floyd–Steinberg dithering: essentially only black and white with dithering, and the speed pretty good. A16: uses 16 shades of grey, but the spee…

What fps do u get on those modes?

I don't have an easy way to measure the FPS, but here is a video I just took. https://www.youtube.com/watch?v=xW-gatdEC7w

It is reasonable enough to see what's happening, but obviously, I'm not going to watch a movie on that.

Re: E Ink Waveforms are a closely guarded secret

#29
post #28

Earlier quoted context omitted.

What fps do u get on those modes?

I don't have an easy way to measure the FPS, but here is a video I just took. https://www.youtube.com/watch?v=xW-gatdEC7w It is reasonable enough to see what's happening, but obviously, I'm not going to watch a movie on that.

Thanks nice to see it in action, bonus points for the RickRoll

Re: E Ink Waveforms are a closely guarded secret

#30
post #28

Earlier quoted context omitted.

What fps do u get on those modes?

I don't have an easy way to measure the FPS, but here is a video I just took. https://www.youtube.com/watch?v=xW-gatdEC7w It is reasonable enough to see what's happening, but obviously, I'm not going to watch a movie on that.

well played
Post reply on HN