XY projection screen is a world famous brand. The company operating a private cinema screens, a large cinema screen, large-scale project screen, electric projector lift racks and other world-quality products. Since its founding to pull the projection screen, we are always on the screen material, optical and acoustic characteristics, and other aspects of constantly get to the bottom, have launched a number of leading technology for Transcend unique; each product Jiangxinduju advanced design, meticulous precision construction, and incredible quality management. The company's main product projection screen, projector screen is mainly used in home theater, office stationery and other places to pull projection screen options, customers are welcome to inquire. Gray screen also often referred to as "high-contrast screen." This is because the purpose is to improve the original design data projectors bright contrast in the auditorium of the environment. Its working principle is: the gray curtain of gray than white curtain coating absorbs more environmental interference stray light, so the light is reduced due to the interference environment becomes more black makes the black screen, and the picture of the white basic no loss get a good price to keep pulling projection screen, so a direct result of the gap between black and white contrast on the screen increases, so as to improve the contrast of the goal. 4, gray screen picture quality is not necessarily better than the white screen in 2013, XY SCREEN screen projection screen set up production plants in mainland China? - Guangzhou-Yun audio-visual equipment, base set up in Guangzhou City, Guangdong Province, production of goods species have screen frame, curved screen frame, electric screen, folding screen, easy screen, large-scale projects, such as electric and projector hanger; curtain material, including online ordering acoustically transparent screen to pull the projection screen, 3D acoustically transparent screen, metal screen, high-definition screen soft, high-definition screen, such as fiberglass. Since being voted the best viewing position of the screen should be at a distance equivalent to 1.5 times the diagonal size of the screen on the left and right, that if a 100-inch 4: 3 aspect ratio of the screen horizontal position of the seat from the screen should be about 3.8 meters (100 * 0.0254 * 1.5). When the screen is too big or too close to see the movie because will cause your eyes to see, however kept turning, a long time will be very tired. 2015 pull projection screen | Shenzhen to pull the projection screen | male cloud audiovisual equipment supplied by Guangzhou-Yun audio-visual equipment. Guangzhou-Yun audio-visual equipment, Ltd. (www.xy-screen.com) strong, credible, in Guangzhou movie projection equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead male cloud audio-visual equipment and you hand into the brilliant, for a better future!