Reinkstone R1

mitra1 · 06-21-2021, 09:23 AM

What do you think about it? I have the doubt that is too economic and i don'r receive updates.https://goodereader.com/blog/electro...h-color-e-note

Quoth · 06-21-2021, 12:52 PM

Colour eink is poor contrast and poor colour! It's inherent physics. Also it's some alternate eink screen. Alternatives did exist in the past, all greyer than the current eink in Kobo/Kindle etc. Amazon bought in one and buried it.
Goodereader seems to be sharing PR on it without much substance.

DNSB · 06-21-2021, 01:09 PM

Looking at the images and the docs, the colour comes from a filter layer over the display. This matches with the lower colour resolution quoted. I was not impressed with any of eInk's colour technology to this date and I suspect the R1 is going to be equally disappointing.

Looking at the images on Reinkstone's site, the colour looks very similar to Kaleido2.

Looking at the good-display.com website, it does say 4096 colours again matching Kaleido.

For the weight, I might as well buy an iPad Air for the 70 grams difference and get a display capable of full colour video at decent frame rates.

salamanderjuice · 06-21-2021, 01:39 PM

Quote:

Originally Posted by DNSB

Looking at the images and the docs, the colour comes from a filter layer over the display. This matches with the lower colour resolution quoted. I was not impressed with any of eInk's colour technology to this date and I suspect the R1 is going to be equally disappointing.

Looking at the images on Reinkstone's site, the colour looks very similar to Kaleido2.

Looking at the good-display.com website, it does say 4096 colours again matching Kaleido.

For the weight, I might as well buy an iPad Air for the 70 grams difference and get a display capable of full colour video at decent frame rates.

If the contrast ratio of the DES slurry display or whatever is better than eInk's before the color layer it might be better. The comparison video they posted between the Nova 3 Color and Reinkstone looks to me like the Reinkstone is a tad better...

I'd like a color version of my Boox Note Air. Occasionally a journal article will have a figure that requires color to make any sense of it and 4096 is enough for that. Probably fine for comics too. I like that I can't watch videos on the damn thing.

DNSB · 06-21-2021, 02:23 PM

Quote:

Originally Posted by salamanderjuice

If the contrast ratio of the DES slurry display or whatever is better than eInk's before the color layer it might be better. The comparison video they posted between the Nova 3 Color and Reinkstone looks to me like the Reinkstone is a tad better...

The documentation says the CR is 8. Compare to eInk Pearl at 10 and eInk Carta at 15. The white reflectance shows as 20 min and typ 25. By comparison, an eInk Carta shows 74% minimum. This may be affected by testing methodogy differences.

And note that the Good-Display numbers are for the B&W screen with no front light, touch, colour filter or other layer in front of the screen.

kyôdai · 06-21-2021, 03:16 PM

This might be a SCAM though, according to the comments under the GoodEReader article and comments on reddit.

It appears "Reinkstone" belongs to Wiwood Technology, who also created the "E-Pad". The E-Pad had a very dodgy history. It was released three times (first as Whisky E-pad, then Eewrite E-Pad and finally as Wiwood E-Pad), during multiple Kickstarter campains. Apparently these guys quickly disappear and abandon their product after they have got your money. Then they reappear later under a different company name or label.

So there is a high chance these "software issues" mentioned by GoodEreader might not be worked out after all. (They have only registered the "ReInkstone" label for 1 year, expiring at the end of November.)

More likely you can buy the updated version next year again under a different name.

Quoth · 06-22-2021, 07:02 AM

Any colour tech using reflected light with a filter on a mono display has to be desaturated or it's too dark. Even then basic physics says the display will be worse ambient brightness than a mono screen.

The underlying mono technology seems poorer than Carta or Mobius, so this will be rubbish in ambient light. It will need front LED lighting and will have washed out colour. The black, white and 14 shades at best also limits colours + shades + hues to less than 4096 compared to over 200,000 to over millions for LCD and millions for OLED or real LED (called Crystal by Sony). This is basic physics.

Kickstarter and similar can also be a gamble. Spending money with Boyue, Xiaomi, Pocketbook, Kobo or Amazon seems more sensible.

06-21-2021, 09:23 AM	#1
mitra1 Zealot Posts: 103 Karma: 2086978 Join Date: Nov 2019 Location: Roma, Italia Device: kindle oasis 2,ONYX boox max lumi	Reinkstone R1 What do you think about it? I have the doubt that is too economic and i don'r receive updates.https://goodereader.com/blog/electro...h-color-e-note

06-21-2021, 01:09 PM	#3
DNSB Bibliophagist Posts: 35,428 Karma: 145525534 Join Date: Jul 2010 Location: Vancouver Device: Kobo Sage, Forma, Clara HD, Lenovo M8 FHD, Paperwhite 4, Tolino epos	Looking at the images and the docs, the colour comes from a filter layer over the display. This matches with the lower colour resolution quoted. I was not impressed with any of eInk's colour technology to this date and I suspect the R1 is going to be equally disappointing. Looking at the images on Reinkstone's site, the colour looks very similar to Kaleido2. Looking at the good-display.com website, it does say 4096 colours again matching Kaleido. For the weight, I might as well buy an iPad Air for the 70 grams difference and get a display capable of full colour video at decent frame rates. Last edited by DNSB; 06-21-2021 at 01:16 PM.

06-21-2021, 12:52 PM	#2
Quoth the rook, bossing Never. Posts: 11,161 Karma: 85874891 Join Date: Jun 2017 Location: Ireland Device: All 4 Kinds: epub eink, Kindle, android eink, NxtPaper11	Colour eink is poor contrast and poor colour! It's inherent physics. Also it's some alternate eink screen. Alternatives did exist in the past, all greyer than the current eink in Kobo/Kindle etc. Amazon bought in one and buried it. Goodereader seems to be sharing PR on it without much substance.

06-21-2021, 03:16 PM	#6
kyôdai Zealot Posts: 147 Karma: 6295710 Join Date: Oct 2012 Device: none	This might be a SCAM though, according to the comments under the GoodEReader article and comments on reddit. It appears "Reinkstone" belongs to Wiwood Technology, who also created the "E-Pad". The E-Pad had a very dodgy history. It was released three times (first as Whisky E-pad, then Eewrite E-Pad and finally as Wiwood E-Pad), during multiple Kickstarter campains. Apparently these guys quickly disappear and abandon their product after they have got your money. Then they reappear later under a different company name or label. So there is a high chance these "software issues" mentioned by GoodEreader might not be worked out after all. (They have only registered the "ReInkstone" label for 1 year, expiring at the end of November.) More likely you can buy the updated version next year again under a different name.

06-22-2021, 07:02 AM	#7
Quoth the rook, bossing Never. Posts: 11,161 Karma: 85874891 Join Date: Jun 2017 Location: Ireland Device: All 4 Kinds: epub eink, Kindle, android eink, NxtPaper11	Any colour tech using reflected light with a filter on a mono display has to be desaturated or it's too dark. Even then basic physics says the display will be worse ambient brightness than a mono screen. The underlying mono technology seems poorer than Carta or Mobius, so this will be rubbish in ambient light. It will need front LED lighting and will have washed out colour. The black, white and 14 shades at best also limits colours + shades + hues to less than 4096 compared to over 200,000 to over millions for LCD and millions for OLED or real LED (called Crystal by Sony). This is basic physics. Kickstarter and similar can also be a gamble. Spending money with Boyue, Xiaomi, Pocketbook, Kobo or Amazon seems more sensible.

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