A double sided screen is a type of projection screen that has two image surfaces, one on each side of the screen. It can be used to project images on both sides of the screen at the same time, or to switch between the two sides as needed. It can be used for various scenarios, such as entertainment, art, business, and communication. For example, you can use a double sided screen to show a movie or a game on both sides of the screen, or to switch between different modes or views on each side of the screen. A double sided screen can also be used to create a flexible and adaptable display, where you can change the content or the layout on both sides of the screen according to your needs and preferences.