Four simple steps for selecting the right projection screen
1
Determine the optimum screen size based on room dimensions, planned audience seating size and arrangement. The best practice is to fit the screen to the audience, not to the projector.
Projecta recommends the following formula for determining screen size for commercial and educational applications:
• Screen height should be approximately equal to 1/6 the distance from the screen to the last row of seats, allowing text to be read and detail to be seen in the projected image. Ideally, the first row of seats should be approximately two screen heights away.
• The bottom of the screen should be a minimum of 125 cm above the audience floor, allowing those seated toward the rear of the audience to see the screen. This may require additional screen “drop” for ceiling hung screens.
Projecta recommends the following formula for determining screen size for home entertainment applications:
• Screen height should be approximately equal to 1/4 the distance from the screen to the last row of seats. Ideally, the first row of seats should be approximately two screen heights away.
• The bottom of the screen should be between 60 and 90 cm above the audience floor. This may require additional screen “drop” for ceiling hung screens.
2
Select the appropriate format for your projection application.
Common formats are as follows:
Video Format 4:3 1.33:1
HDTV Format 16:9 1.78:1
Wide Format 16:10 1.60:1
Cinemascope Format 21:9 2.35:1
Square Format width = height
3
Choose the screen surface that best suits your projection and viewing requirements.
If the screen will be used for multiple projection methods, choose the screen surface that meets the requirements of the lesser performing projection method.
4
Select the type of screen that best suits your particular needs.
For example, choose from front projection screens in either portable, wall or ceiling mounted models in either manual or electric versions or rear projection screens. Generally, if your projection application is permanent, then wall and ceiling screens are your best choice. If, however, you find your needs require moving the screen to different locations then a portable screen is a better alternative.
