Projection screens are special screens used to project an image for the audience. Movie theatres use projection screens on a wide scale. These screens are used in conferences or home theatres as well. The screens serve different purposes in different places. Therefore they are installed in various ways.
The projection screens can be wall-mounted type, pull down type or mobile type. Wall mounted types are needed for exact reproduction of the picture. Movie halls and home theatres use this type of screen. The second type, that is pull down screens do not need a fixed place, they can be used as and when required. Mobile screens are pull down screens mounted on a free stand but the projection of pictures are not perfect in these projection screens.
Projection screens are always matte white or matte grey. This helps in the perfect colour projection of the slides, otherwise, the pictures or images might get discoloured. Matte grey screens or grey screens reflect less light from the projector, they also absorb less light from the room. Image brightness ratio is correctly maintained and many call these projection screens high contrast screens.
The screens may be...
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