Feature:1. Working Principle: The working principle is charged nanoparticles suspended in the liquid are subjected to the action of the electric field to migrate, and reflect under the ambient light to form a display effect close to that of traditional printing paper.2. Viewing Angle: The electronic ink screen can clearly display the picture under ambient light such as lighting, natural light, etc., without backlight, and the viewing angle is almost 180°. Because of its display effect comparable to traditional paper, it is often used in applications such as readers.3. Microcapsule Electrophoresis Display: The epaper display uses "microcapsule electrophoresis display" technology for image display.4. Multi Mode Selection: E paper display supports multi mode selection. Through the mode switch button, users can freely switch between GC16, A2 and A2+ three modes.5. Speed Adjustment: Electronic ink screen supports 10 contrast adjustments and 5 display speed adjustments. With the mode selection, users can match their own display effects.How to Use:1. Connect the adapter card and the electronic ink screen2. Connect the USB cable and High Definition Multimedia Interface cable to the for Raspberry Pi, artificial intelligence board, computerSpecification:Item Type: E Paper DisplayMaterial: LCD, PCBSize: 7.8inGray Level: 2-16 Levels (1-4 Bits)Display Panel: Electronic Ink ScreenDisplay Interface: High Definition Multimedia InterfaceResolution: 1872x1404 (300DPI)Display Color: Black, WhiteViewing Angle: ＞170°Display Adjustment: Mode/Cont