1Working Principle: E ink display module uses "microencapsulated electrophoretic display" technology to display images. It works on the principle that charged nanoparticles suspended in a liquid migrate under the action of an electric field. The display effect of paper. 2No Backlight Required: E paper screen display module does not require a backlight and can maintain the display content of the previous screen for a long time when the power is turned off. 3Widely Compatible: E paper screen display module can be connected to for Raspberry Pi, for Jetson nano, for STM32 and other main control boards with low power consumption. 4Clear Image: E paper electronic screen panel can display the picture clearly in ambient light such as illumination and natural light with a viewing angle of nearly 180 degree. 5Superior Performance: The E ink display module has an on board level conversion chip and is compatible with 3V and 5V level interfaces. It is often used in applications such as readers because its display is comparable to traditional paper.