1. Effective shading distance of the hood is 21.5cm, which can effectively prevent the interference of ambient light on the display color, making the display color closer to the true color. The inner side is made of black extinction material, which can absorb the selfreflected light of the display. 2. No disassembly design, when using, directly open the side plate to adjust the width and can be used. When not in use, remove it directly. The side plates on both sides will be automatically closed. After closing, the volume is small and easy to carry. 3. Connection between the side plate and the top plate adopts a foldable design, and the connection is equipped with a spring. The pressure of the spring makes the connection between the hood and the display frame firmer, and it can be firmly covered on the display frame without other connection facilities. 4. Display hood can block the surrounding stray light and unwanted reflections, and the screen content is clearer without the use of high brightness, which greatly improves the eye environment, reduces eye irritation, and can focus on preventing peeping.