How appropriate is the projector screen size? Projector screen size calculation

As the saying goes, a good projector with a good horse and a good saddle naturally needs a good projector screen to reflect its value. A good projector screen can make the projector effect leap. Nowadays, it is on the market. Projector screens are also available in many sizes. So how appropriate is the projector screen size ? How is the projector screen size calculated? 

How appropriate is the projector screen size?
The size of the projector screen depends mainly on the size of the space used and the number of spectators, as well as the placement of the location. The first principle is to choose a projector screen that is suitable for the audience, rather than choosing a projector screen that is suitable for the projector. At present, the most used projector screens are between 80 and 120 inches in size. The largest projector screen has reached a size of 30 meters wide. Generally, small and medium-sized conference rooms and home projections can be used with a screen of about 100 inches. . There are also some values for the installation location of the projector screen. The height of the projector screen is preferably slightly higher than the viewer's eye level. The distance of the projector screen from the front row of viewers can be set at twice the height of the projector screen. The high brightness machine can be appropriately increased. The bottom of the projector screen. The distance from the ground is generally 50 to 80 cm. At the same time, the size of the projector screen should also take into account the brightness, contrast, projection distance and other parameters of the projector.

How is the projector screen size calculated?
The aspect ratio refers to the ratio of the width to the height of the screen. The more common ones are 4:3, 16:10, 16:9, etc., or in other words, 1:1 or 1.85:1, etc., but usually for Considering the adaptability of the projector screen, the extreme ratio of 2.35:1 is very small. And the aspect ratio of the screen needs to be matched according to the needs of different projection devices. Usually home projection are considered with a wide screen, and general business education projector or conference presentations are commonly used 4:3. Image format screen ratio (width: height) NTSC standard 4:3; PAL system 4:3 HDTV (high resolution TV) 16:9; wide screen 1.85.