Projection screen: how to choose sound-transparent screen and curved screen

Sound-transmitting screens are not unfamiliar to those who have been in movie theaters, but most people don’t know that sound-transmitting screens are divided into woven sound-transmitting screens, perforated sound-transmitting screens and metal 3D sound-transmitting screens, as well as the characteristics of the screens.　　 Woven sound-transmitting curtain: The sound-transmitting curtain is made of imaging soft PVC through high-tech synthesis. High-quality sound transmission, and its unique structure can effectively eliminate the moiré (interference fringes) produced by the projector. Excellent sound penetration. It can perfectly integrate audio and video; the surface of the screen is soft and flat. It is not easy to deform, the effective viewing angle is up to 70 degrees, and the gain is 1.1 times. Obtain excellent sound performance.　　 Perforated sound-transmitting curtain: The sound-transmitting curtain is made of imaging soft PVC through high-tech synthesis. It has a stronger picture effect, and its unique structure can effectively eliminate the moiré (interference fringes) produced by the projector. Excellent sound penetration. It can perfectly integrate audio and video; the surface of the screen is soft and flat. It is not easy to deform, the effective viewing angle is up to 70 degrees, and the gain is 1.1 times. The picture is clear and lifelike.　　Metal 3D sound-transmitting screen: After a special surface process, the gain and imaging characteristics are improved, and it provides a high-performance, high-contrast and wide-viewing screen for 3D image display. The high-quality image color and wide viewing angle can bring shocking three-dimensional display to the audience. And the 3D sound-transmitting screen is synthesized by high-tech imaging soft PVC. High-quality sound transmission, and its unique structure can effectively eliminate the moiré (interference fringes) produced by the projector. Excellent sound penetration. It can perfectly integrate audio and video; the surface of the screen is soft and flat, and it is not easy to be deformed.　　In the field of home theater projection, woven screens can achieve excellent sound performance, while perforated screens can have a stronger picture effect. However, due to the difficulty of manufacturing technology, the perforated sound-transmitting screen is more prone to interference fringes (Moore fringes) than the woven sound-transmitting screen, so the manufacturing requirements of the perforated sound-transmitting screen are more stringent. The holes of the sound-transmitting screen in the high-end private theater using the sound-transmitting screen will be much finer. It must be ensured that these small holes will not be noticed within the most common viewing distance (3m～5m), and too much light loss should not be allowed. In the small hole. However, the holes in the cinema screen are relatively thick. This is because the movie screen is large and the viewer is far away from the screen, so these holes will not be noticed.　　 High-end home sound-transmitting curtains are generally woven with high-density special fibers. There are more than 76 000 tiny openings per square inch to ensure high-quality sound transmission without losing too much brightness.　　 Although the transparent sound screen can solve the problem of the large-size screen's influence on the speaker position, it must be explained here. In fact, the meaning of the transparent sound screen is not to allow you to better place the sound under the big screen, but to be able to place the main speaker and the center speaker behind the screen and at the same level. This ensures the unity of the front channel and allows the dialogue to be emitted from the center of the screen. Many people pursue a dialogue effect like a movie theater. In fact, the transparent sound screen can be regarded as one of the key elements of whether this effect can be reproduced.　　 Irregular weaving method will prevent the screen from appearing “hot spots” that gather reverse rays of light to disturb the graffiti surface, which belongs to the structure of high-end sound-transmitting screens.　　 This is a relatively common regular woven screen. The size of the opening is also a test of the design ability of the screen manufacturer, and it can be solved perfectly.　　When the curtain becomes larger and larger, the distance from the lens to the center of the curtain will be significantly shorter than the distance from the corners. If an anamorphic lens is used to project a 2.35:1 picture, then this distance will be stretched larger, which means that if the focus is accurate in the middle of the picture, the two sides of the screen will inevitably be out of focus and the picture will be blurred. In order to solve this problem, the curved screen came into being. The curved structure can ensure the same focal length from the projector lens to the screen. This is a very scientific solution.　　 2.35:1 arc screen can be customized screen and support frame for users according to the specific arc radius, shape size, optical gain and other technical parameters provided by users. And its curved screen is divided into two types, one is a hard screen with a solid base, and the other is a soft screen with an aluminum frame.