Register Guidelines E-Books Search Today's Posts Mark Forums Read

Go Back   MobileRead Forums > E-Book General > News

Notices

Reply
 
Thread Tools Search this Thread
Old 04-25-2020, 11:16 AM   #31
fjtorres
Grand Sorcerer
fjtorres ought to be getting tired of karma fortunes by now.fjtorres ought to be getting tired of karma fortunes by now.fjtorres ought to be getting tired of karma fortunes by now.fjtorres ought to be getting tired of karma fortunes by now.fjtorres ought to be getting tired of karma fortunes by now.fjtorres ought to be getting tired of karma fortunes by now.fjtorres ought to be getting tired of karma fortunes by now.fjtorres ought to be getting tired of karma fortunes by now.fjtorres ought to be getting tired of karma fortunes by now.fjtorres ought to be getting tired of karma fortunes by now.fjtorres ought to be getting tired of karma fortunes by now.
 
Posts: 11,625
Karma: 123043382
Join Date: May 2009
Location: 26 kly from Sgr A*
Device: T100TA,PW2,PRS-T1,KT,FireHD 8.9,K2, PB360,BeBook One,Axim51v,TC1000
Quote:
Originally Posted by Quoth View Post
All eink is opaque, no matter if a cell is "on" or "off".

The top layer is just a filter. The eink cells are "milky" white liquid with black balls. The cell / pixel is black when the balls are stuck to the front. It's "white" when they are stuck to the back.
So:
1) No transparency as otherwise you'd always see the black balls.
2) The only ways to have colour are
a) A coloured filter. Obviously the underlying eink is 3x resolution in one direction or x2 resolution in both directions.
b) Cells with coloured liquid instead of white. Contrast would be terrible and the resolution in 1/3rd in one direction or 1/2 resolution in both directions compared to a same geometry mono (white only).
c) Coloured balls in the milky white liquid. This has no dark shades unless there are also interspersed normal white & black shades.

The only way to have genuine higher mono resolution (for viewing rather than driving the filter) is an active transparent display of lower resolution that mysteriously works without a colour filter.

ANY colour filter layer on top of any monochrome display reduces the effective visual resolution to that of all the colour elements needed to produce white, so either 1/3rd on one axis, or 1/2 on both axis depending on how the colour is done.

If someone had invented a new display technology, we'd have heard about it ages ago. Some prove to be too expensive or too poor. Mirasol sounded good. Royalties, yield and poor colour compared to hype killed it. One eReader with two brandings for a Chinese and Korean booksellers.

There have been coloured eink for ages using the RGB filters. They need good lighting. I've seen red/black ones but it's not clear how those work. They are sold in small sizes for label applications. Probably labels are Advanced Color ePaper (ACeP) or "E Ink Spectra". I'd be surprised if that can be used to make an ereader.
https://www.eink.com/color-technology.html

Any colour ereader would use "E Ink Triton" (out for ages) or "Print Color ePaper- E Ink Kaleido", both of which are indeed the regular eink with a colour filter, just like LCD.
Poor saturation or else the panel needs too much front lighting. The Kaleido sounds like a printed plastic rather than glass filter but otherwise the same idea as Triton.
Tri= 3, so likely a 3 x 1 colour stripe, thus 300 dpi mono is a 100dpi x 300 dpi for mono or colour.


The "E ink Prism" isn't for displays.
Have read the source articles?
They not using Triton.
They *are* teamed with Kaleida.
Carta is the background so it doesn't have to be transparent and it can't because it has the driver backplane behind it.

What *is* new here is the addressable filter layer which *can't* have so presumably it uses a grid of wires between the pixels to carry the control signals.

This is a new creature: the old stuff you know doesn't apply here.
Because if it did apply it would be as useless as Triton.
It's not LCD, it's not Triton, it's not ACeP.
It's new and it's called Kaleida because of the partnership.
And the exercise in tea leaf reading here is trying to figure out how it works based on the limited info of what it is and the broader info of of what it isn't.

As is, even with this new tech, it might still end up as a niche in a niche; the answer to a question nobody asked. 100 dpi color has some uses and so does 12 bit color but combined, in a world of cheap bright and saturated LCD it might be even as successful as SED.

Last edited by fjtorres; 04-25-2020 at 11:18 AM.
fjtorres is online now   Reply With Quote
Old 04-25-2020, 12:41 PM   #32
jgneff
Member
jgneff began at the beginning.
 
jgneff's Avatar
 
Posts: 11
Karma: 10
Join Date: Nov 2017
Location: Vancouver, BC, Canada
Device: Kobo Touch B/C, Kobo Glo HD, Kobo Clara HD
Quote:
Originally Posted by Quoth View Post
3 x 3 is a waste. You only need 3 x 1 or 2 x2 for colour. How the pixels are arranged makes no difference to the 4096.
My guess was based on the following constraints from the articles I've read:
  • Text is 300 ppi while color is 100 ppi.
  • The number of colors is 4096.
  • The color animation I saw in the video was as fast as the "A2" waveform mode pure black and white animation.
jgneff is offline   Reply With Quote
Old 04-25-2020, 01:58 PM   #33
Quoth
the rook, bossing Never.
Quoth ought to be getting tired of karma fortunes by now.Quoth ought to be getting tired of karma fortunes by now.Quoth ought to be getting tired of karma fortunes by now.Quoth ought to be getting tired of karma fortunes by now.Quoth ought to be getting tired of karma fortunes by now.Quoth ought to be getting tired of karma fortunes by now.Quoth ought to be getting tired of karma fortunes by now.Quoth ought to be getting tired of karma fortunes by now.Quoth ought to be getting tired of karma fortunes by now.Quoth ought to be getting tired of karma fortunes by now.Quoth ought to be getting tired of karma fortunes by now.
 
Quoth's Avatar
 
Posts: 2,003
Karma: 8920112
Join Date: Jun 2017
Location: Ireland
Device: Both Kinds: epub based makes and Kindle
Kaleida is just a plastic version of Triton as far as I can see. It's just a filter. Maybe I'm wrong, but it sounds like hype and that the real resolution is 300 dpi x 100 dpi due to the stripe filter.

How is the filter layer active?
Quoth is offline   Reply With Quote
Old 06-14-2020, 11:23 AM   #34
EInklover
Junior Member
EInklover began at the beginning.
 
Posts: 1
Karma: 10
Join Date: Jun 2020
Device: Amazon Kindle Oasis, Kobo Forma, Sony Digital Paper DPT
Smile There are other available color eReaders in the market

iFlytek and iReader

https://m.bilibili.com/video/BV14V411r7Pz
EInklover is offline   Reply With Quote
Old 06-20-2020, 07:00 AM   #35
Nelebh
Junior Member
Nelebh began at the beginning.
 
Posts: 9
Karma: 10
Join Date: Jun 2016
Location: Spain
Device: Poke2 Color?, Boyue T62+, Kobo Clara HD, Hanlin V5 (not in use)
Quote:
Originally Posted by EInklover View Post
Interesting. From what I understand by using Google Lens to translate the conclusions: both has the same RAM (1 GB), the iReader C6 has more vivid colors and runs a more optimized but older Android (7.0). iFlytek C1 is easier to use (thinner?) and with a flat screen, more updated Android (8.1) but worse performance and more app crashes.

The iReader C6 looks very interesting, and it has the best E-Ink color screen I've seen. It is better (more vivid colors) than the Hisense A5C too, as seen here: https://www.bilibili.com/video/BV16C4y1H7PA/

I don't know how it would compare to the Hisense A5 Pro CC or the Poke2 Color. And by rooting you can run whatever app you want, anyone knows how they are doing it?

Also in this other video (https://www.bilibili.com/video/BV1Rz411B73V) the iReader C6 is compared to the Poke2 Color using the video released from Onyx. But without having a real side by side comparison I wouldn't draw any conclusions. The most interesting part is the latest, when the iReader C6 is shown as a PC second screen.

By the way, there isn't any news about the Poke2 Color, right? The Poke2 is on stock again: https://twitter.com/OnyxBoox/status/1273219916087336969
Nelebh is offline   Reply With Quote
Old 06-26-2020, 06:35 PM   #36
mdp
Wizard
mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.mdp ought to be getting tired of karma fortunes by now.
 
Posts: 1,434
Karma: 9000001
Join Date: Jul 2013
Device: none
Quote:
Originally Posted by Quoth View Post
3 x 3 is a waste
Very certainly in theory, but from photos I found around it seems that the tinted parts of the filter only cover a fraction of the film.
Like a BRG/BRG/WWW .
Pls see parallel thread at
https://www.mobileread.com/forums/sh...=329162&page=7
and previous.
It may suggest that they got better results by limiting the tinted areas.

Quote:
Originally Posted by Quoth View Post
c) Coloured balls in the milky white liquid. This has no dark shades unless there are also interspersed normal white & black shades
K balls among C, M and Y ones give dark shades. Controlling different kinds of balls in the same cell is the breakthrough of ACeP.

EDIT: though it seems that ACeP is a CMYW immersed in a K fluid

Quote:
Originally Posted by Quoth View Post
I've seen red/black ones but it's not clear how those work
I cannot check sources now (using palm instead of desktop), but I remember a three states system (like pos, neg, neu for K, R, W) which cannot allow the usual 16 shades.

Last edited by mdp; 07-02-2020 at 06:10 PM.
mdp is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Onyx Now Working on a Lighted E-ink eReader Booxtor Onyx Boox 101 11-07-2012 11:08 AM
Kobo eReader N647-KUS-B Digital eReader - Onyx $39.99 + $5.00 shipping Brainphart Deals and Resources (No Self-Promotion or Affiliate Links) 0 08-18-2012 12:51 PM
PB 912 vs Onyx M92 vs Jetbook Color XMasterrrr PocketBook 1 07-04-2012 04:19 PM
Onyx M92 vs PB 912 vs Jetbook Color XMasterrrr Onyx Boox 6 07-04-2012 03:24 PM
Color: Original ereader books (from ereader.com) sangahm Nook Developer's Corner 13 03-05-2012 03:25 PM


All times are GMT -4. The time now is 08:40 PM.


MobileRead.com is a privately owned, operated and funded community.