Kindle looks like a book, which will hurt your eyes, but the ink screen is indeed more "friendly" to the eyes of LCD readers such as mobile phones and tablets.
The background light source behind the LCD panel of a mobile phone or tablet computer will "penetrate" the screen and enter people's eyes, and the intensity will penetrate, causing irritation and harm to the eyes. Kindle uses an ink screen to illuminate the surrounding light, strong light or natural light on the screen, and then refract it to people's eyes, which has little effect on people's eyes.
LCD products used in mobile phones and tablet computers will emit blue light, and short-wave blue light with a wavelength of 400nm to 450nm will cause harm to human eyes.
Because of the light source, the proportion of blue light emitted by liquid crystal display products will penetrate, while short-wave blue light has strong penetrating power and can penetrate normal tissues of human eyes. Retina, and damage retinal pigment epithelial cells and photoreceptor cells. When reading an e-book with an ink screen, the short-wave blue light entering the eyes is reduced, so the damage to the eyes is relatively small.
Extended data:
Features of e-readers:
1, one book can be used for many purposes: an e-book reader can load many e-books. Most products can be extended to large-capacity storage such as SD card /CF card, and can be used as a small mobile library. Some products can also be used as notebooks and folders.
2. Power saving and environmental protection: E-book readers use electrodes to save electricity instead of traditional paper. Due to the use of advanced display technology, people can buy less paper books and cut down trees, thus protecting the environment.
3. Protect your eyesight: The display principle of the new e-book reader is different from that of computers and mobile phones. It does not emit light actively, but relies on reflecting natural light or light like traditional paper, so it has no radiation, no glare and no damage to vision.
Baidu encyclopedia-electronic reader