Curtains, large pieces of cloth, thick cloth, velvet, etc. Hanging on the stage to perform or show a movie. Hanging behind the stage is called the sky curtain, and the sides of the stage are called the side curtains. The front of the stage is called a curtain or curtain.
The curtain dedicated to projection is called projection screen, which is one of the most commonly used products in projector peripherals. If the projection screen is properly matched with the projector, high-quality projection effect can be obtained. Generally speaking, projection screens can be divided into reflective and transmissive types. Reflection projection is used for front projection and transmission projection is used for back projection; Orthographic screen is divided into plane screen and arc screen; From the texture can be divided into glass curtains, metal curtains, embossed plastic curtains and so on. Generally speaking, the hard screen is better than the soft screen.