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Old 04-26-2020, 08:31 PM   #53
DNSB
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Device: Kobo Sage, Libra Colour, Lenovo M8 FHD, Paperwhite 4, Tolino epos
Quote:
Originally Posted by eReader fan View Post
Do you mean by that we are losing DPI achieving colours?

As I understand from your explanation the only possible way to add more colours could be overlap eInk layers, making them thiner. If this is it we will end having monochrome ereaders to read and thick big display ereaders to work/watch videos, etc
eInk is opaque so you can't add layers and current eInk displays are limited to 16 levels (white, 14 greys and black). Going by the pre-release specs for the Pocketbook 6" colour eInk reader, it has 100 PPI in colour and 300 PPI in greyscale using the eInk Kaleido display.

Quote:
Originally Posted by eReader fan View Post
As for the lighting being trapped problematic, maybe it will solve the problem having a low backlight and then the usual eReader frontlight. Keeping the backlight at a very low brightness would be a must if we want to keep the eyestrain-free environtment common to eReaders.
Go back to the first sentence of my reply. The reason that eInk displays use a front light is that the display is opaque. A back light will not work. Take a look at the image attached for an idea of the structure of an eInk EPD capsule.

Quote:
Originally Posted by eReader fan View Post
I don't know about ClearInk or other technologies development or functionallity, but maybe this 4k colours it will be what we have until those other technologies develop properly on next 5 years
LiquaVista, Mirasol, etc. have come and gone. ClearInk is a moving target -- "we'll be in production next year".
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Last edited by DNSB; 04-26-2020 at 08:33 PM.
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