1, different definitions
E-ink: commonly known as "electronic ink technology", it is a screen technology.
Pearl screen: the second generation technology using electronic ink-pearl screen.
Ink screen: a screen using "electronic ink technology"
E-Ink electronic ink screen has many advantages, including readability, flexibility and low power consumption. Compared with other display technologies, E-Ink electronic ink screen has better reflectivity and contrast. They look like ink on paper and are a comfortable medium for people to read and deal with.
In bright light, including direct sunlight, other display materials feel a little pale and difficult to read. On the contrary, displays based on electronic ink are really easy to see and read.
Extended data
The screen used by the entry-level Kindle has always been the second generation technology of E-ink-Pearl, also known as pearl screen; The new generation Kindle Youth Edition has been replaced by the latest third-generation Cater screen;
Compared with the former, Carta screen supports 16 grayscale, and the font display will be sharper and more detailed. The new ink screen technology reduces the refresh frequency when turning pages, which is undoubtedly smoother;
At present, the brands of electronic paper books mostly use the Eink electronic ink screen produced by Yuantai in Taiwan Province Province, but even the same manufacturer will have different levels of screens. For example, there is a certain gap between Eink's pearlescent screen and carta screen. Carta screen is better than pearlescent screen in refresh speed and afterimage control, and the visual embodiment is that the background color is whiter and the handwriting is deeper.
References:
Baidu encyclopedia-electronic ink