Quote:
Originally Posted by =X=
The PRS-505 is 8bits so thats 2^8 = 256 shades.
I don't think the cybook is 4 shades is probably 4bits, like the Kindle. So that would be 2^4= 16 shades.
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PRS-505 is 3-bits (8 shades), most other devices with 6" screens are 2-bits (4 shades) and the iLiad is 4-bits (16 shades). This is what gets displayed on the screen, they all accept 8-bit or more images and color images.