The patent of electronic paper is about to expire.

The patent of electronic paper is valid in 2035. According to relevant public information, electronic paper technology, also known as electronic paper or electronic ink (e-ink), is a new display technology, which can simulate the texture of paper, making the display clearer, more environmentally friendly and more energy-saving. It can display static images instead of traditional paper. It can display not only text, but also pictures, icons and patterns. This is an interesting technology. The basic idea of electronic paper patent is to change the position of particles on the screen by using charges, thus displaying static images. Its advantage is that the display is very smooth, and it can be displayed for a long time, but it consumes less power and does not generate heat, and it can display more contents, and can save images for a long time, and users do not need to reload images.