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Old 10-19-2023, 07:39 AM   #3
John F
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Join Date: Feb 2009
Device: Kobo Clara 2E
Quote:
Originally Posted by Quoth View Post
Possibly 1860 x 2480 according to https://en.wikipedia.org/wiki/Amazon...Specifications

The 300 dpi is the resolution. The 1860 x 2480 is pixels. I know pixel count is often called "resolution", but separate from screen size it's not. A 5.1" would be be super high 600 dpi resolution. A 41" approx on the wall would be a very low 75 dpi resolution.

You'd only need to know the X & Y pixels to fit an image to the screen exactly 1:1, which no Kindle will easily let you do as they add quite large margins.

Actual eink panels in readers are approximately 150, 167, 223, 265 and 300 dpi. There is nothing "generic" about 300dpi. The eInk price labels in local shops seem much lower than 150 dpi as you can see jaggies on the diagonals.

Currently the Scribe is the only eink at 300 dpi in the 10″ size bracket.
I think your definition of "resolution" for a display is different then the standard. Resolution is the pixel count, DPI (or density) is something different. I think.

For example, for the tech spec for The Kobo Elipsa:

"Display: ... 227 PPI, 1404 x 1872 resolution with Dark Mode"

DPI may be what more people care about, but that does not make it the resolution.
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