The difference between the projection screen and glass bead?
Fiberglass fabric: a curtain made of fiberglass woven fabric with a good flatness. Gain value: around 1.1, viewing angle: about 160 degrees. Its good smoothness, with suitable prices, applies to a variety of occasions.
A bead curtain is covered with a layer of fine glass beads, the gain value is relatively high, generally around 2.5. And low cost, generally used for business and education, but because of its material is not environmental protection, after a period of time is easy to yellow, and not easy to maintain, is slowly withdraw from the market.
