> Many e-readers (...) utilize electronic paper for their displays in order to further resemble paper books; one such example is the Kindle series by Amazon.
https://en.wikipedia.org/wiki/Electronic_paper
"E Ink" is just a brand of e-paper - see https://en.wikipedia.org/wiki/E_Ink_Corporation. There are other brands that utilize the same technology.
Unless specifically noted otherwise, you can safely assume that anyone talking about "e-ink" or "e-paper" means the kind of display used in Kindle, Inkplate or the art frames this article is talking about. There were cases of RLCDs and TLCDs marketed as "e-paper" in the past, but those are rather exception than rule, riding on the popularity of the real thing. Nobody considers calculator or OLPC screens "e-paper".
It is not. It is a brand of electrophoretic display, which is a type of e-paper display.
> There are other brands that utilize the same technology.
There are not. Not any significant ones anyway.
> Unless specifically noted otherwise, you can safely assume that anyone talking about "e-ink" or "e-paper" means the kind of display used in Kindle, Inkplate or the art frames this article is talking about.
No you can't. "E-ink" displays are definitely e-ink. But an "e-paper" display could be e-ink, transflective LCD, or anything else. There are real products that use transflective LCD and say they have "e-paper" displays. The Pebble watches are the obvious one (sadly discontinued).
There are tons of e-ink products that are described as having e-paper displays which probably contributes to the confusion, but the meaning is quite clear.
They absolutely are not. E-paper is a generic term for "screens that can be used like paper". E-ink is a specific technology.
If you see people saying a device uses an "e-paper display" it's because it's not e-ink, but often they want to make people think that it is (because e-ink is arguably the best kind of e-paper display).
Transflective LCD is an example of an e-paper display that is not e-ink.