Color No future for this device

[mod186k1]

Lorenzo, are you talking about the text?

[mod186k1]

Originally Posted by ProDigit

... pearl e-ink has 16 gray levels, and the JBC has only 8.

I know for sure that triton tech in JBC and in Hanvon is based 16-level-gray. Infact each pixel can have 16 level of gray and because you have 1 for red + 1 for blue and 1 for green (the fourth pixel is used to improve the contrast) you will have:

number of colors = 16**3 = 16*16*16 = 4096

[andyh2000]

Originally Posted by mod186k1

I know for sure that triton tech in JBC and in Hanvon is based 16-level-gray. Infact each pixel can have 16 level of gray and because you have 1 for red + 1 for blue and 1 for green (the fourth pixel is used to improve the contrast) you will have:

number of colors = 16**3 = 16*16*16 = 4096

I understood it to be 4096 colours made out of all four pixels with 8 shades each. 8x8x8x8=4096.

Andrew

[lorenzoens]

Valentinka thanks again for your contribution.

I'd like to ask you, if you have the time to do it, to shoot some more comparisons DXG / JBC with different lighting conditions. Adding the ipad would be a plus but it's not indispensable

One in your bed, I mean with the kind of light you use when you read before sleep.
Another in outdoors.

I'm probably asking too much, wouldnt like to take too much advantage of your kindess.

As document you may take a text of your choice with medium-small fonts, and some colours (as much as you can).

[mod186k1]

Originally Posted by lorenzoens

Please note the "The purple area..." written text on the compared devices here

seen converted by the DXG gray scale, it's better readable

If you are talking about the text, you can see from here:
https://www.mobileread.com/forums/att...7&d=1332104751

that it is a deep blue (I choose this color on purpose) and the correct display is that of iPad2: a bright color on bright background: we can define "contrast" the difference of background and foreground.
Obviously the algorithm used by Kindle to convert the color in gray (there are several algorithm) map this blue in a gray more dark respect the blue of the reality. The result can be different on other devices or programs.
Otherwise the JBC map this blue on 4096 color space and it is a more accurate reproduction of the reality (but it is anyway a "map") and so the contrast is more real (while the contrast of Kindle are less real and more "simulated" and computed)


P.s.: iPad2 shows this blue too bright. I think it is a photo defect

[mod186k1]

Originally Posted by andyh2000

I understood it to be 4096 colours made out of all four pixels with 8 shades each. 8x8x8x8=4096.

Andrew

Specification is not very clear but from eink site I read Triton has 16 level gray (and 4096 color). If you have only 8 level for a pixel how can you get the 16 levels of gray?

http://www.eink.com/display_products_triton.html

[ProDigit]

Originally Posted by mod186k1

Specification is not very clear but from eink site I read Triton has 16 level gray (and 4096 color). If you have only 8 level for a pixel how can you get the 16 levels of gray?

http://www.eink.com/display_products_triton.html

Just a speculation, but the white pixel stands for 8 shades (6 shades in reality), and the 3 other colors stand for 8 shades (6shades actually as any other shade than 0 or 8 (white or black) brings up a shade of grey). Combined, that's 16.
Though only speculation...

[mod186k1]

Originally Posted by lorenzoens

Valentinka thanks again for your contribution.

I'd like to ask you, if you have the time to do it...

I suggest to Valentinka to use the trick Prodigit and Andy said me: clicking (single click) with sylus on center of the screen you will eliminate the ghost effect.

[Valentinka]

Originally Posted by lorenzoens

Valentinka thanks again for your contribution.

I'd like to ask you, if you have the time to do it, to shoot some more comparisons DXG / JBC with different lighting conditions. Adding the ipad would be a plus but it's not indispensable

One in your bed, I mean with the kind of light you use when you read before sleep.
Another in outdoors.

I'm probably asking too much, wouldnt like to take too much advantage of your kindess.

As document you may take a text of your choice with medium-small fonts, and some colours (as much as you can).

Yes. I will be glad to do this. It is about 5:30 PM now right now. I could take some pictures outdoor right now. But it is not the brightiest part of the day now since the sun is will go down soon. Now what document do you want me to display? I am looking of what I have - text of my choice with medium-small fonts, and some colours (as much as you can). Maybe you can find something faster and just upload it for me here?

[Valentinka]

Originally Posted by mod186k1

I suggest to Valentinka to use the trick Prodigit and Andy said me: clicking (single click) with sylus on center of the screen you will eliminate the ghost effect.

Yes. I will try to use this trick

[lorenzoens]

Oh sorry I didnt notice you answered already.

I did a quick search, try this at the the third page please:
http://www.stonesc.com/pubs/Expert%2...%20Choices.pdf

[Valentinka]

I am not sure if I found good PDF file to display. And I don't know how helpful it will be with this file. If you want me to test with different one just please upload it here.
But anyway, he is what we have. Time - soon after 6 PM. Still some sunshine outdoor but not as bright as in the middle of the day. Sun started going down. Still this is nice time to read outdoor.
Pictures 1 and 2 are of iPad 2 taken indoor (to get ideas about colors) since iPad 2performs pretty bad with sunshine outdoor.
Pictures 3-16 were taken outdoor about the same time (around 6 PM).
Pictures 17-21 were taken indoor right after pictures ourdoor. It was getting pretty dark indoor but still OK to read with some additional light.

[Valentinka]

Pictures 18 -21

[lorenzoens]

Seems to me a confirm: Triton needs outdoors lighting to express its potential, in colour and definition.
With direct, or very bright sunlight it will surely result better than Vizplex or standard Pearls, because the strong grey does not harm the eyes by reflecting all the light. The same happened with my Asus dr900.

Medium and low light kill it. Medium light weakens most of the colours. Low light makes it way less readable than Pearl. I'm speaking for my eyes, not for everyone.

Two notes:
I meant the kind of light you find in bedrooms, when you read before sleeping. Usually it's a very warm one.
Did you keep the ipad on low-brightness? Outside you should use it with the highest settings

[Valentinka]

I just saw your file, lorenzoes.
I will take more picture with it maybe later tonight (about bedtime) and tomorrow. I think you file is better for testing than mine above. Much more colors, too. Thanks!