Quote:
Originally Posted by Quoth
A one pixel black line will be a real 300 dpi, but the white background will have pale coloured fringes.
A one pixel white line line isn't white. You need a two pixel line for white and certain white diagonals at 2 pixel wide will not be white.
There is no longer a mono 300 dpi panel because of the bayer filter pattern (or similar as it's 150dpi in colour).
https://en.wikipedia.org/wiki/Bayer_filter
Do learn some physics.
Make sure there is no colour and a range of text in same font and line art on two ereader being compared and the front light is perfectly adjusted to same white. Then via cut out window have test subjects compare. Repeat several times with sometimes swapping positions.
Then do same with enough room lighting for front light off.
For reading mono text, and especially in dark mode or ambient light, the Kaliedo 3 is not 300 dpi mono. It's impossible.
It's pointless unless you want comics. It's pretty rubbish for photos being only a 16 level panel (Up to 4095 combinations of shades / colours and black) and desaturated filer so it's not too dark like Triton.
I'm sometimes wrong, but not on this, it's a marketing lie to claim a 300 dpi panel with a filter for colour can still do 300 dpi monochrome. A one pixel black line with coloured fringes can be 300 dpi, nothing else.
I was writing colour manipulation SW 30 years ago for CGA, EGA and 256 colour VGA. |
That link is completely off. It talks of Bayer filter for digital imaging sensors. It's not even applicable for lcd monitors, even less for e-ink devices. It's system used for capturing images on digital cameras, not for displaying them. Eink screens are different, and coloured eink screens are another thing altogether. From all that I've seen of Kaleido screen tech, it's BW screen underneath then coloured filter directly on top of it. That way they can both be off different resolution.