subject: Relevance Of Using The Correct Projection Screen Material [print this page] Nowadays, the use of projectors & projector screens has become widespread. Not only are people using these in their offices but also in their homes. Therefore it is important to know why one should insist on the correct projector screen material while purchasing a projector screen. There are many pitfalls of using the wrong projection screen material; here, we try to illustrate it for you.
The most important characteristic of a projection screen is the planarity of the surface. If the surface is not flat, then the images projected on it will be distorted. So, your projection screen material has to be such that it will keep the surface flat and not crease or fold it.
The best projector screen material, which ensures the planarity of the surface, is of the stretchable variety. The material stretches & keeps the surface flat, producing the least opportunities for creasing.
However, a non-stretchable projection screen material is also used when the requirement is to build an acoustically transparent projection screen i.e. a projector screen that allows sound to pass through it.
When purchasing the projection screen material it is always advisable to test how much it can stretch. Always stretch it & ensure that it is flat enough for your satisfaction.
Here is a list of fabrics that are suited well to be used as projector screen materials:
Matt white (1.2 gain)
Matt white rear coated (1.2 gain, black back)
Reference white (1.0 gain)
Reference grey (0.9 gain)
Also, it is helpful if you keep a few characteristics of projection screen material in mind, while purchasing it. Heres a list that you can refer to:
Gain: the higher the gain, the brighter the image; gain value differs from projector screen material to material.
Seamless materials are preferred over materials that are stitched together; otherwise, the stitched portion can create image distortion while viewing.
High contrast fabrics are preferred for home theatre purposes.
Hence, it is very important to check out the projection screen material while purchasing a projector screen; the relevance of the material cannot be undermined.
