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#31 | |||||
the rook, bossing Never.
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Karma: 89531599
Join Date: Jun 2017
Location: Ireland
Device: All 4 Kinds: epub eink, Kindle, android eink, NxtPaper11
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Some computers advertised as Vista ready were not even good for XP and terrible for Vista. Win7 was not the best MS OS ever. Quote:
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2) Not true 3) It's not the same market. The Kaleido is only really good for comics. The mono eink is much better for novels. What about the Clara 6″? New models in mono and colour. Some tiny companies compared to Kobo have plenty of models. Quote:
The Kaleido replaces Triton, which was basically an LCD type filter on eink. It's a compromise using printed coloured dots smaller than the pixels, so only does poor colour. It's a mono eink screen with a 2 x 2 pattern, so 300 dpi gives 150 dpi colour but only about 4000+ shades of pastel and murk because the panel has 14 greys, black and white. Because the dots only cover part of the pixel you can drive it as if it's 300 dpi, but certain dot spacings and patterns will give false colour, so there is an "anti-rainbow" setting which limits mono to 150 dpi. The idea is about 5 years old and been in products more than 3 years. Kaleido eink can't come close to the same panel without the printed dots. ACeP is a different technology and about x10 too slow for ereaders and eink is already x10 to x200 slower than LCD & OLED. LCD could abandon mono (it's still a mono panel) because graphic panels with enough dots for a reader or computer always needed a backlight. They don't bother quoting a mono resolution, or providing drivers as the 3840x2160 can be on a 12″ panel that's really 3840x6480, 11,520x2160 or 7680x4320 mono pixels. QLED is actually LCD with red and green "quantum" dots and clear for blue, with a blue LED backlight. LCD has 120 to 1000 levels of "grey". Actually it's always transparent. It works by the fact the liquid is crystalline style rods that are rotated by an electric field. So if it's fed polarised light it appears to go clear (backlight) or dark. Colour only eink would be the death of eink readers. Too small a niche. Last edited by Quoth; 05-23-2024 at 10:48 AM. |
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#32 |
Connoisseur
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Karma: 81981
Join Date: Oct 2023
Location: Ontario, Canada
Device: Kobo Aura Edition 2, Kobo Clara 2E
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It's not just Libra, It's Clara 2E as well. Just a month or so ago I sent my Clara 2E for a warranty swap due to charging issues. I hope I won't find myself in a similar situation again and they'll send me a colour one as a replacement. No one who just reads normal books has anything to do with colour and I don't want to pay the price of having a second filter dimming the screen. Ugh!
The Canadian website has no listing for Clara, Libra 2E. But there's a "Kobo Clara BW", not sure if this is the same device with a new color and branding, I'll do more research. https://www.kobo.com/ca/en/ereaders Edit: It's not. According to "https://blog.the-ebook-reader.com/2024/04/16/kobo-clara-list-of-differences-between-4-models/" The notable difference between 2E and BW is the use of E Ink Carta 1300 screen instead of E Ink Carta 1200 screen, promising better contrast.. Last edited by lumping-sugar66; 05-23-2024 at 10:54 AM. |
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#33 |
the rook, bossing Never.
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Join Date: Jun 2017
Location: Ireland
Device: All 4 Kinds: epub eink, Kindle, android eink, NxtPaper11
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Yes, the Clara BW is a genuine replacement for the Clara 2E. Which is why I mentioned Clara.
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#34 |
Grand Sorcerer
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Karma: 227000000
Join Date: Jan 2014
Location: Estonia
Device: Kobo Sage & Libra 2
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#35 |
eReader Wrangler
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Join Date: Mar 2013
Location: Boise, ID
Device: PB HD3, GL3, Tolino Vision 4, Voyage, Clara HD
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The Libra Colour is not an improvement over the Libra 2 — not for folks who want the best contrast they can get. Apparently the Libra Colour has a significantly poorer battery life than the Libra 2 also.
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#36 | |
Resident Curmudgeon
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Karma: 134254544
Join Date: Nov 2006
Location: Roslindale, Massachusetts
Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3
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Kobo's idea to discontinued the Libra 2 is really bad. If they plan to replace it with a LIbra BW and the new Carta 1300 screen, then they really should say so now rather then later. |
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#37 | |||
eReader Wrangler
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Karma: 50076341
Join Date: Mar 2013
Location: Boise, ID
Device: PB HD3, GL3, Tolino Vision 4, Voyage, Clara HD
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With Windows (if you wanted to continue using it) you didn't really have a choice. Those who use eReaders still do have choices. BTW, Vista is why I moved to Linux. There's also the matter of extra expense for a color screen that many (if not most) customers don't need or want. Quote:
Competition between their own products? Maybe you look at it differently than I do but, for me, color readers are more for reading manga or PDF textbooks, completely unnecessary for novels or most non-fiction books. So I look at the color eReaders as competition against tablets, not black and white eReaders. Quote:
We'll see, I guess. |
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#38 | |
Member
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Karma: 1127468
Join Date: Apr 2024
Device: Kobo Libra 2
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As rcentros wisely stated, folks at the time had much more constraints around being bounded to an OS. Switching to Apple or Linux would be a much more costly expense. News Flash!! Kobo isn't the only supplier of BW e-readers on the market. If you aren't happy with their current model feel free to check out a Pocketbook or a Kindle. Additionally, people in this thread are having trouble understanding why it would be a logistical nightmare to produce both models so I'll happily break it down. Even though the devices have an identical external look, the internals are anything but that. Has anyone considered that apart from a screen there is a whole different set of electronics to enable the (much stronger) battery and support of the stylus pen??? The production line doesn't just support an interchangeable switch between the Libra models. To put it simply, in order to produce a unit of the Libra2, a unit of the Libra Color would need to get sacrificed. Along with the time and labor to reconfigure the production line. This would lead into my next point of economies of scale. Kobo's most profitable path is to lower the cost per unit as much as possible. This is done by bulk ordering parts from their manufactures as well as being efficient on the production side. I'll leave it to you guys to do the remaining math on the best strategy to increase profitability. |
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#39 | |
Member
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Karma: 1127468
Join Date: Apr 2024
Device: Kobo Libra 2
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As rcentros wisely stated, folks at the time had much more constraints around being bounded to an OS. Switching to Apple or Linux would be a much more costly expense. News Flash!! Kobo isn't the only supplier of BW e-readers on the market. If you aren't happy with their current model feel free to check out a Pocketbook or a Kindle. Additionally, people in this thread are having trouble understanding why it would be a logistical nightmare to produce both models so I'll happily break it down. Even though the devices have an identical external look, the internals are anything but that. Has anyone considered that apart from a screen there is a whole different set of electronics to enable the (much stronger) battery and support of the stylus pen??? The production line doesn't just support an interchangeable switch between the Libra models. To put it simply, in order to produce a unit of the Libra2, a unit of the Libra Color would need to get sacrificed. Along with the time and labor to reconfigure the production line. This would lead into my next point of economies of scale. Kobo's most profitable path is to lower the cost per unit as much as possible. This is done by bulk ordering parts from their manufactures as well as being efficient on the production side. I'll leave it to you guys to do the remaining math on the best startegy to increase profitability. |
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#40 | |
Bibliophagist
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Karma: 153006036
Join Date: Jul 2010
Location: Vancouver
Device: Kobo Sage, Libra Colour, Lenovo M8 FHD, Paperwhite 4, Tolino epos
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The real next generation of display is eInk's Gallery/ACeP screens. These have 4 different colours of particle in a microcup and by positioning the particles, you can generate more colours than Kaleido 3 is capable of and without reducing the display resolution. The problem is that positioning those particles is a slow process. It can take up to 1.5 seconds to rewrite a colour page in quality mode. For the construction of the ACeP display, see this image from eInk's site: ACeP microcup since the animated GIF gets converted to a jpg when I try using it as an attached image. Last edited by DNSB; 05-23-2024 at 02:26 PM. |
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#41 | |
Custom User Title
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Join Date: Oct 2018
Location: Canada
Device: Kobo Libra H2O, formerly Aura HD
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#42 | |
the rook, bossing Never.
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Location: Ireland
Device: All 4 Kinds: epub eink, Kindle, android eink, NxtPaper11
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Also ACeP while much better colour may never be fast enough for an ereader and might not ever be as good in ambient light as any Carta version for mono. We may be close to "peak" eink. Carta 1200 is in reality little better than Carta. They seem to have maxed out at 300 dpi years ago and took them a long while to get from 227 dpi to 300 dpi for 10.x″ panels. I like my Sage and Libra. I like the mono eink for a novel, but for anything else the Nxtpaper is far better. I've bought two 10.3″ ereaders and they are pointless. Nearly as pointless as my 9.7″ 150 dpi DXG (though at least it was a clearance sale). I'll read novels mostly on the Sage. I can't see me ever using the 10.3″ eink models or buying a larger eink, or a colour eink. I nearly bought a Scribe and feel it was a narrow escape. Years before the 10.3″ 227 dpi models I almost bought a big Sony DPT. But they are too heavy, too slow, too walled and low resolution. I'll likely get a Nxtpaper 14 or 14 pro for bigger stuff instead of 16″ 2560x1440 laptop screen. |
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#43 | |
Resident Curmudgeon
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Karma: 134254544
Join Date: Nov 2006
Location: Roslindale, Massachusetts
Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3
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#44 |
Wizard
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Join Date: Sep 2022
Device: Kobo Libra 2
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We aren't upset that the Libra 2 was discontinued. We're upset that Kobo didn't release a Libra BW to replace it before discontinuing it. The Clara BW will take over for the Clara 2E after it gets discontinued, but there is no Libra 2 successor right now, and that's concerning.
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#45 | |
the rook, bossing Never.
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So, not easy and some printed inks don't easily dissolve in anything. I did industrial control panel screen printing for a while and once the ink set it wasn't removable. The screens had to be cleaned at once while wet and washing off the stencil was a pain too. It was soft, rollered on, exposed to UV via mask and backing peeled off. Then the unwanted portions washed off (I think where UV was blocked by mask). We usually charged for a screen too in case we couldn't clean it. We gave it up. Too much work for small runs of custom control panels. They might be "custom ink jet" printing the CFA (the coloured dots) as they are small for screen printing, but ICs are using 2nm smallest detail photolithography by ASML using short UV light. |
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