Does the projector use a black curtain or a white curtain?

The black curtain for projector usually has high light absorption capacity, so it can provide better contrast and clarity when used in dark environment. The black curtain also helps to reduce the interference of ambient light, thus better displaying the projected content. However, black curtains may make the image look a little dim and may not be as bright as white curtains.

White curtain for projector usually has high light reflection ability, so it can provide better color reproduction and brightness when used in bright light environment. White curtains also help to show details and clarity better. However, the white curtain may be disturbed by ambient light, especially in the strong light environment, which may reflect too much light, resulting in a decline in image quality.