Whether it is a commercial cinema or a home audio-visual room, more and more cinema projects will use sound-transmitting screens. First, the overall appearance is beautiful, and second, the speakers can be placed in a suitable position according to the indoor environment to achieve better sound effects.
Sound-transmitting screens are mainly divided into two categories: perforated sound-transmitting screens and woven Sound-transparent screens.
Perforated Sound-transparent screens are mainly based on PVC material curtains, and holes are punched on the curtain surface. Woven Sound-transparent screens are just like the meaning of the text, using a weaving process.
Many cinema enthusiasts have a headache. Which of these two screen materials is better?
In fact, if a product can survive in the market, it means that it has a certain value, so there is no such false proposition as which is better between perforated Sound-transparent screens and woven Sound-transparent screens.
In terms of sound attenuation, woven Sound-transparent screens have an advantage over perforated Sound-transparent screens, because the holes of woven Sound-transparent screens are denser than those of perforated Sound-transparent screens, the perforation rate is higher, and the sound attenuation is lower, but this statement is based on the fact that the woven Sound-transparent screens are not added with black blackout cloth.
However, in terms of image effect, perforated Sound-transparent screen has an advantage over woven Sound-transparent screen, because the surface of woven Sound-transparent screen cannot be coated with gain. If it is used with a low-lumen projector, a large-sized woven Sound-transparent screen will have difficulty in image quality. This is why commercial theaters have always used perforated Sound-transparent screens.
After we understand the basic characteristics of these two screen materials, how should we choose the screens for our theaters in the process of building audio-visual rooms?
We can consider it based on such a mindset. No matter which one we choose, we will have gains and losses in terms of image or sound. So I suggest that we can make a comprehensive consideration based on the authoritative standards of the industry.
In terms of brightness, according to the standards of SMPTE (Society of Motion Picture and Television Engineering), the recommended brightness value for the center projection of 2D screens is 12~16fL (PS: the brightness of 3D screen projection is 3~4.5fL). In terms of sound attenuation, according to the IMAX standard, the perforation rate is 4.5%~6.3%.
According to incomplete statistics, most audio-visual rooms over 30 square meters use perforated Sound-transparent screens. Why does this happen?
Because audio-visual rooms over 30 square meters can basically use screens over 150 inches. Now people have higher and higher requirements for picture quality, so projector manufacturers have begun to gradually increase the contrast of projectors. In this way, the contrast is increased and the brightness is inevitably reduced. Therefore, more and more people are using perforated Sound-transparent screens with gain coatings, while woven Sound-transparent screens cannot be coated with gain on the surface, and the actual gain is only about 0.8, so in terms of brightness, it cannot gain an advantage over large-sized screens.
When choosing perforated Sound-transparent screens with gain coatings, do not choose too high gain, which is easy to cause the “sun effect” and there will be viewing angle problems. 1.0~1.8 gain is recommended.
At the same projector brightness, the illumination is 60 percentage points higher than the diffuse white screen without any coating, and the contrast is 34 percentage points higher. Since the pearl powder optical coating screen is a reflective digital screen, it suppresses the secondary reflection of the room better than the traditional diffuse white screen, and is significantly better than the diffuse screen in terms of picture sharpness (clarity) and black level (black level), making the picture sharper, better color reproduction, and better black level performance.
How to choose a sound-transparent screen that meets the standard of sound attenuation?
I mentioned above that in terms of sound attenuation, the woven Sound-transparent screen has an advantage over the perforated Sound-transparent screen, but that is without the addition of black blackout cloth. After adding the black blackout cloth, the sound attenuation of the woven sound-transparent screen at a high frequency of 8KHZ exceeds 5dB. Based on the brightness just mentioned, can I take into account the sound while ensuring the picture quality? Of course, as just said, as long as the sound attenuation meets the standard, we can also choose a perforated sound-transparent screen with gain.
There are now woven Sound-transparent screens with a nominal gain of 1.0 or above on the market. In fact, this data is false and not real. Because the woven screen material cannot be coated, the gain basically hovers around 0.8. However, some people have measured that some woven sound-transmitting screens do have a gain of 1.0. What’s going on? I believe the data is real, because there has also been a process of directly spraying gain coating on 4K woven screens, but in this way, the micropores on the screen surface will be covered by the coating, which means that the east wall is repaired, but the west wall collapses instead.
Let’s talk about the sound attenuation of perforated Sound-transparent screens
IMAX’s perforation rate standard is 4.5%~6.3%. If we can reach this perforation rate standard range, our sound attenuation is well controlled.
Summary
If you want better sound-transmitting,choose the woven sound-transmitting screen fabric,it is better to use brighter projector especially more than 150″
If you want better bright and have no brighter projector,especially more than 150″,it is better to choose the perforated screen fabric,usually white PVC perforated fabric
Choosing the right projection screen depends on the usage scenario, projector performance, budget, and personal needs. Here are the key steps and considerations for choosing a projection screen:
Determine the usage scenario Home theater: Pursue high image quality and immersion, suitable for choosing a screen with high contrast and good color reproduction.
Business presentation: Focus on portability and ease of use, suitable for choosing an electric screen or a portable screen.
Education or training: Need to be durable and suitable for multiple people to watch, choose a manual screen or an electric screen.
Outdoor activities: Need a screen that is resistant to ambient light and high brightness, choose a portable screen or a high-gain screen.
Choose the type of screen Fixed frame screen: The picture is flat, suitable for fixed installation home theaters or conference rooms.
Electric screen: It can be raised and lowered, suitable for occasions that require flexible use, such as conference rooms or home theaters.
Manual screen: Economical and affordable, suitable for small venues with limited budgets.
Portable screen: Easy to carry and install, suitable for temporary use, such as outdoor activities or business presentations.
Floor-pull screen: It is movable, suitable for occasions that need to change venues frequently.
Choose the material of the screen Matte White:
Gain: 1.0 (standard).
Features: good color reproduction, wide viewing angle, suitable for most environments.
Applicable scenarios: home theater, conference room, classroom.
Glass Beaded:
Gain: 1.5-2.5.
Features: strong light reflection, suitable for darker environments, but narrow viewing angle.
Applicable scenarios: small conference rooms, home theaters (light controllable).
Gray screen:
Gain: 0.8-1.2.
Features: improve contrast, suitable for high-brightness projectors or occasions with strong ambient light.
Applicable scenarios: home theaters (strong ambient light).
Acoustic transparent screen:
Features: allows sound to pass through the screen, suitable for placing speakers behind the screen.
Applicable scenarios: high-end home theaters or professional theaters.
Metal screen:
Gain: 2.0-3.0.
Features: high brightness, high contrast, suitable for 3D projection or high brightness environment.
Applicable scenarios: 3D cinema, outdoor activities.
Determine the screen size Choose according to viewing distance:
Viewing distance = screen diagonal length × 1.5 to 2.5.
For example, a 100-inch screen (diagonal about 2.5 meters), the best viewing distance is 3.75 meters to 6.25 meters.
Choose according to room size:
Small room: 80-100 inches.
Medium room: 100-120 inches.
Large room: 120-150 inches or larger.
Choose the screen ratio
16:9: suitable for modern home theaters and most video content (movies, TV, games).
4:3: suitable for old projectors or business presentations (such as PPT).
2.35:1: suitable for widescreen movies, providing a cinematic experience.
Consider ambient light Environments with controlled light (such as home theaters): choose ALR screens or gray screens, focusing on color reproduction and contrast.
Environments with strong light (such as conference rooms or outdoors): choose high-gain screens (such as glass bead screens or metal screens) to increase the brightness of the picture.
Budget Economical type: manual screens or matte white screens, suitable for users with limited budgets.
Mid-range type: electric screens or glass bead screens, suitable for users pursuing cost-effectiveness.
High-end type: acoustically transparent screens or gray screens, suitable for home theater users pursuing ultimate picture quality.
Installation method Ceiling installation: suitable for electric screens or fixed frame screens.
Wall installation: suitable for fixed frame screens or manual screens.
Floor installation: suitable for floor-pull screens or portable screens.
Testing and adjustment If possible, test the screen effect in the actual environment to ensure that the brightness, color and clarity of the picture meet the requirements.
Adjust the screen selection according to the brightness and resolution of the projector.
Summary Choosing a suitable projection screen requires comprehensive consideration of usage scenarios, screen type, material, size, ratio, ambient light, and budget. Here is a quick selection guide:
Home theater: fixed frame screen or electric screen + gray screen/acoustic screen.
Business presentation: electric screen or portable screen + matte white.
Outdoor activities: portable screen or floor screen.
Through the above steps, you can find the projection screen that best suits your needs and improve your viewing or presentation experience.
ALR screen fabric usually includes fresnel farbic,black grid fabric,black crystal fabric etc.Fresnel fabric has a better ambient light rejection effect,black grid has a big viewing angle.
In the side,black grid is better than fresnel fabric.All these fabric can be used for UST projector and standard focus projector.
Whether it is a commercial cinema or a home audio-visual room, more and more cinema projects will use perforated sound screen. First, the overall appearance is beautiful, and second, the speakers can be placed in a suitable position according to the indoor environment to achieve better sound effects.
Perforated sound screen are mainly divided into two categories: perforated sound-transmitting screen and woven sound-transmitting screen.
Perforated sound-transmitting screens are mainly based on PVC material curtains, and holes are punched on the screen surface. Woven sound-transmitting screens are just like the meaning of the text, using a weaving process.
Many cinema enthusiasts have a headache. Which of these two projector screen materials is better?
In fact, if a product can survive in the market, it means that it has a certain value, so there is no such false proposition as which is better between perforated sound-transmitting screens and woven sound-transmitting screens.
In terms of sound attenuation, woven sound-transmitting screens have an advantage over perforated sound-transmitting screens, because the holes of woven sound-transmitting screens are denser than those of perforated sound-transmitting screens, the perforation rate is higher, and the sound attenuation is lower, but this statement is based on the fact that the woven sound-transmitting screens are not added with black blackout cloth.
However, in terms of image effects, perforated acoustic screens have an advantage over woven acoustic screens, because the surface of woven acoustic screens cannot be coated with gain. If used with a low-lumen projector, a large-sized woven acoustic screen will have difficulty in producing images. This is why commercial theaters have always used perforated acoustic screens.
The narrow frame projector screen is fixed on the wall. It has a simple structure and is fixed on the outside through an aluminum frame. The screen can be used by directly flattening and straightening it. The narrow frame screen has a main feature: its border is narrow, usually about 1 cm. This design makes the screen look more spacious. It also reduces the visual interference of the border.
The advantages of the narrow frame screen are that it is easy to install and light in weight. The screen surface is flat and not easy to wrinkle. The viewing effect is good. It is suitable for most users. It is also suitable for independent audio-visual rooms. This environment is usually relatively closed. It can keep the screen surface clean.
Floor rising projector screen is a projection screen,the main feature of which is that it rises from the ground.It has an automatic lifting function. This screen does not need to be mounted on the wall.It is placed on the ground or table.This screen is driven by a motor to rise from the ground, and is used for projection display after unfolding. Convenient use, beautiful and easy to store, and suitable for various environments, including home theaters and business presentations.
1.Convenient to use : Floor-lifting screens have an automatic lifting function. And users can easily operate them through remote controls or buttons, eliminating the trouble of manually pulling up traditional screens.
2.Beautiful and easy to store .When not in use, the screen can be completely stored inside the base without occupying extra space.keeping the environment clean.
3.Applicable to a variety of environments .Floor-lifting screens are suitable for a variety of environments, including home theaters, conference rooms, exhibition halls, etc., providing a large-screen visual experience.
4.No installation required, plug in and use.
5.Can be placed in a TV cabinet, more beautiful and generous.
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