| Projection screens are special screens used to project | | | | for both back and front projection. The light that is |
| an image for the audience. Movie theatres use | | | | projected on the screen is diffusely reflected by the |
| projection screens on a wide scale. These screens | | | | front projection screens. Back projection screens |
| are used in conferences or home theatres as well. | | | | work differently. The light that is projected on them is |
| The screens serve different purposes in different | | | | diffusely transmitted through the screens. |
| places. Therefore they are installed in various ways. | | | | Like any other consumer items projection screens can |
| The projection screens can be wall-mounted type, pull | | | | be of high quality and bad quality. It depends on how |
| down type or mobile type. Wall mounted types are | | | | much the prospective buyer is going to pay for a |
| needed for exact reproduction of the picture. Movie | | | | screen. Obviously high quality screens will have higher |
| halls and home theatres use this type of screen. The | | | | price tags. It is advisable to go through the details of |
| second type, that is pull down screens do not need a | | | | the product before purchasing. Many manufacturers |
| fixed place, they can be used as and when required. | | | | give a detailed list of what they are offering. |
| Mobile screens are pull down screens mounted on a | | | | Projection screens are mainly required for commercial |
| free stand but the projection of pictures are not | | | | purposes like in cinema halls or conference rooms, but |
| perfect in these projection screens. | | | | individuals might buy them for their home theatre. The |
| Projection screens are always matte white or matte | | | | buyer has to decide on the screen size. Minimum and |
| grey. This helps in the perfect colour projection of the | | | | maximum viewing distance has to be taken in to |
| slides, otherwise, the pictures or images might get | | | | account. Minimum viewing distance is the distance |
| discoloured. Matte grey screens or grey screens | | | | closest to the screen from where the viewer can see |
| reflect less light from the projector, they also absorb | | | | the whole picture. Maximum viewing distance is the |
| less light from the room. Image brightness ratio is | | | | distance furthest from the screen, from which the |
| correctly maintained and many call these projection | | | | picture as a whole can be seen. There is a formula for |
| screens high contrast screens. | | | | calculating this, but those not strong in mathematics |
| The screens may be flat or curved, but flat screens | | | | can depend on reliable makers who manufacture |
| are the preferred ones. Projection screens are used | | | | screens taking everything in to consideration. |