Flat or curved screens may be used depending on the optics used to project the image and the desired geometrical accuracy of the image production, flat screens being the more common of the two.
Uniformly white or grey screens are used almost exclusively as to avoid any discoloration to the image, while the most desired brightness of the screen depends on a number of variables, such as the ambient light level and the luminous power of the image source.
Another popular type of portable screens are inflatable screens for outdoor movie screening (open-air cinema). Projection screens may be permanently installed, as in a movie theater painted on the wall or portable with tripod or floor rising models as in a conference room or other non-dedicated viewing space. Home theater projection screen displaying a high-definition television imageĪ projection screen is an installation consisting of a surface and a support structure used for displaying a projected image for the view of an audience.