[Tips for distinguishing true and false screens] Projection screens

The projection screen does not seem to have advanced technology on the surface, but there are still many doorways on its thin screen. In the process of communicating with many screen companies and users, we found that although the screen quality is high, the phenomenon of falseness, inferiority, and brand confusion frequently occur. These problems not only seriously harm the interests of consumers, but also seriously damage the company's brand. And image. Many users report that most brands are counterfeiting. For example, Meishi Jingying has illegal dealers who used domestic products to impersonate Meishi Jingying screens. Counterfeit screens such as Deile, Hongye and Baixue also appeared. In this issue, we will explain the screens from two categories: front projection screens and rear projection screens, so as to provide readers with a better way to distinguish between the true and false, and the pros and cons of the screen. Both appearance and connotation. The common front projection screens mainly include white plastic screens, glass bead screens and metal screens. In the teaching process, the glass bead screen is the most used. We will introduce the glass bead screen from the back of the screen, surface materials, modeling, environmental protection, cost performance, and sales channels. The cloth base material on the back of the high-quality screen is relatively flexible, and the whole is relatively flat, and the glass and fiber materials can have the flame retardant effect. The overall structure is horizontal and vertical, and it is not easy to deform. Low-quality and inferior screens usually have a softer base, which tends to curl up after a period of time, and is not flame-retardant. The teacher can see the difference by carefully observing the back of the curtain. The fineness of the glass beads on the screen surface and the coating process will directly affect the graininess and noise of the image. One thing to remind everyone is that a screen with a rough touch to the touch is not inferior, and a screen with a finer touch may not be of high quality. Most of the domestic screens feel more delicate, because most of the glass beads are embedded in the curtain, while the imported screens are more delicate and most of the glass bead crystals are exposed, so the feel is relatively rough. According to experts, the glass bead crystals are three points One is embedded in the curtain, and its reflection, refraction, gain and viewing angle effects are all in the best condition. Therefore, high-quality screens feel rough, while inferior screens feel more delicate. High-quality screens will also have the effect of preventing mildew and discoloration. At the same time, some high-quality screens will also be added with appropriate black glass beads, which can eliminate the phenomenon of blinking and protect the eyes. Inferior screens are usually more dazzling, easy to mold, and will turn yellow after prolonged use. In terms of brand appearance, high-quality screen motors have strong power and durability. The self-locking system and performance of the rotating shaft have higher operability, and different brands have their own unique trademarks and shapes. It is understood that each brand has its own LOGO printed on the plastic casings at the left and right ends of the screen, and the casing is also made of different materials. The casing has a warranty mark (warranty words and product identification code), and the identification code can be used to inform the manufacturer Check the authenticity and status of the screen. In our sample collection, we learned that the plastic shells at both ends of the Baixue screen are printed with a '白雪' LOGO, and the aluminum alloy shell has a three-year warranty mark on the right end. You can check the authenticity of the screen through the identification code. And other situations. Environmentally friendly screens usually refer to screens whose formaldehyde content (mg/kg) is ≤75, while high-quality screens have a detection value of less than 75. Only Baixue (Shenzhen) Projection Screen Co., Ltd. provided us with a test report that showed a data value of <20, while other screen companies failed to provide test reports from related testing departments. When you are buying a screen, you must first look at the test report provided by the manufacturer before making a choice to prevent counterfeiting. In terms of cost performance, the price of high-quality screens of the same specifications is definitely higher than that of inferior products. In particular, the price of imported screens is higher among products of the same specification. Regardless of the specifications, the price is not the standard for evaluating the quality of the screen, so when you buy, you should choose the most suitable screen according to your own different needs. After all, 'good quality and low price' is our ultimate goal. For your benefit, please be sure to look for brand trademarks when purchasing screens, and try to buy from screen companies' offices across the country or their designated authorized agents. It is reported that Hongye, Baixue and other screens have offices and authorized agents all over the country. You can ask manufacturers about local dealers through the Internet and telephone consultation to provide more security for your choice.