[mdp]

Originally Posted by DaleDe

Having only 8 colors is a big drawback for this technology

Which technology only displays 8 colours? You are not perchance making reference to that shout that's around, "Advanced Color ePaper displays all 8 primary colors"? In that case I am absolutely positive it was a badly chosen unclear formula: it should only mean "we really compose red, green and blue well out out cyan, magenta and yellow (plus black and white)". The pictures of the prototypes show the full range of colour, so I do not believe it is like the "pure white black and red" e-ink "Spectra" displays - that would hardly be a breakthrough. Advanced Color ePaper is declared capable of 32,000 composed colours - which suggests as expected, 4 bits of graduation (16 shades) by 4 inks, minus one for some reason (2^15 = 32768). The breakthrough is that you can electrically control different inks - different electrical parameters control different inks, so they can be changed individually.

Originally Posted by DaleDe

150 ppi is the resolution and it will soon also be the resolution of of Triton with color.

150 ppi is the resolution in virtual pixels after the filter is applied to the 300 ppi of the EPD screen underneath in Triton, and it may be enough for images (text as you noted may have a good effect if it is rendered as black, and all the filters are darkened enough to make the tinted grid invisible), but I would really need to see a sample to evaluate the quality of the "white" which will have that tinted grid superimposed. For that matter, it is easier for the black to conceal the filtering screen but I would still need to see also the effect on black - come on, of a real full page rendering - to be sure.

EDIT: surely Triton is not extinct, because I see E-Ink is commercializing a 31.2'' color ePaper Display (EC312TT2), Display Module Only for a cost of $2,300 plus extra. Resolution of 2560x1440, 96ppi of the actual display or 48ppi if you consider the virtual pixels to determine a color.

Originally Posted by DaleDe

LCD displays are also based on filters.

LCD displays are based on filters, but they emit light and that's a very different colour synthesis in practice.

Originally Posted by DaleDe

I think it seems white enough for reading purposes

But have you actually seen and used a real Triton? One cannot fail to notice the interesting amount of people that in these months stated they would have sacrificed the touchscreen in the Max2 to keep those few percentage points of contrast, and a tinted screen is certainly a darkener - because it's a layer, and because there's light subtractive tint on it.

Originally Posted by DaleDe

Besides there is nothing that says the colors have to be true red, green, and blue, they can be altered slightly as you already suggest. There could be a mix of mutiple colors and filters using something from both technologies.

The tinted layer I saw in the wiki shows a RG/BW grid (with apparent skewing on alternate same-colors lines), which surprised me: I thought it should have been CM/YW.

EDIT: moreover, the amount of achievable colours for the Triton is stated as 4096 (12 bits), which suggest thrichromy (4+4+4 bits of shades)...


Anyway, if they manage to implement CMYK or similar subtractive synthesis directly in the electrophoretic screen, that's the best solution I can think of. If not for the current limit, that the 2016 implementation of Advanced Color ePaper has a 2s refresh rate...