Projection screens are tools used to display images and video files in movies, offices, home theaters, and large conferences. The projection screens on the market are different in color and variety. It is very important to choose a projection screen suitable for your needs. Now let’s share how to choose the right projection screen.
Size and ratio
The size of the projection screen is important, such as “4:3 ratio, 120 inches” is a screen size specification, mainly for video and PC images. At present, the video screens of 4:3, 16:9 (mainly suitable for HDTV HDTV images) are most commonly used, and users can select which proportion of screens to use according to the display ratio of their own machines. However, most home users choose a 16:9 ratio for watching HDTV.
Screen category
The screen categories are electric, tripod, picture frame, and folding. The electric type is mainly used in places such as school teaching, and it is fixed on the wall, and the power supply can be connected to control the rise and fall of the screen. The bracket type can be moved anywhere, and the degree movable is large, and can be purchased according to a more flexible place to change. At present, the household is mainly using mounted type. The frame type is fixed on the wall, which is the biggest drawback of this type of screen, because once installed, the position cannot be changed. This type of screen is suitable for users who have a dedicated audio-visual room or who do not need to close the curtain.
Screen material
The most common materials for screens are glass beads (increased brightness) and matt white (increased viewing angle). The white plastic screen is a typical diffuse scattering screen. The diffuse scattering screen uniformly scatters the incident light of the projector in all directions, and the same image can be seen at every angle. The bead curtain is a typical regression screen. Since the glass beads on the screen reflect the light around the incident direction of the projected light, bright and vivid images can be seen at the normal viewing position. When viewing a large number of people or viewing it horizontally, it is advisable to choose a white plastic screen. The home living room and other places should choose a bead curtain.
Signal format
Some people think that the 16:9 projector will buy the 16:9 screen, and the 4:3 will buy the 4:3 screen. It is necessary to choose the machine and the curtain, but this is not the case. The ratio of the screen does not depend on the projector, but on the most frequently played signal format. This is because, as a projector, regardless of the proportion of the input signal, it can be projected normally. If you use a lot of photos, then 90% is a 16:9 picture (although there are a lot of 2.35:1, but the area with 16:9 subtitles can be fully displayed), then buy a 16:9 screen.
1 In fact, the screen of 4:3 can also display the 16:9 picture, but only some areas above and below the picture are empty;
The screen of 216:9 can also display a 4:3 screen, and the left and right parts of the screen can be vacated.
In the above two cases, the first one that makes the user look comfortable is also needed to purchase according to the needs.
Distance/height
The ideal screen installation height is such that the center position of the effective screen of the screen and the viewer’s eyes are at a position slightly higher than the same horizontal line. The focal length of the projector determines its distance from the screen. Based on the distance between them and the height and width of the room on which the screen is installed, you can figure out how large the screen should be installed. Therefore, when purchasing a projection screen, it is necessary to select a suitable product according to the height of the wall and the viewing distance.
