Is the curtain dirty? Simple cleaning steps will restore image quality

The projector is different from the LCD TV. The projector can project the picture to the screen, white wall, desktop, water curtain, ground, rockery and other occasions at any time, but the two must cooperate well in order to enjoy the excellent picture. Effect. However, for ordinary users, they will basically match the projector with the projection screen, but if the projection screen is dirty, deformed, or discolored, the consequences will greatly affect the image quality during use. Next, the editor will explain how to clean the projector screen, you can do it yourself DIY, and 'up to the next level' of picture quality. Small non-wetting stains, use an eraser. When there are relatively small non-wetting stains, the better way is to use an eraser to gently wipe off. However, if the quality of the eraser is not good enough or the eraser is colored, it may not be completely erased and leave a pool of marks. Therefore, pay special attention to using pure white high-grade erasers, which are easily available in stationery stores. As for the method of erasing, thinking back to the warm situation when revising the homework that year, you will know what to do. Liquid stains or stains have a large area, use detergent 1. Make sure that the pH value of the detergent is as neutral as possible. Because the base layer and coating of the screen are mostly resin or rubber materials, they are susceptible to corrosion and discoloration. 2. Do not use oily cleaners and cleaners with brighteners, such as Bi Lizhu. You can choose water-based, volatile foam cleaners, which will not damage the screen. You can also choose from cleaners such as collar cleaners in supermarkets. 3. A very important point, what tool should be used when cleaning the projector screen. Because the surface of the curtain is actually uneven, it is necessary to choose an erasing tool with as small molecular particles as possible, such as polymer sponges. This kind of sponge particles are very small. After the detergent is moistened and softened, the dirt can be fully removed. Dirt in the pit. On the contrary, it is difficult to clean the small stains in the recesses of the curtain by using rough sponges or towels. For oily stains, use a cotton ball dipped in a small amount of degreasing solvent. This situation is more difficult to deal with. If it is not handled properly, there will be great risks. Only use a cotton ball dipped in a small amount of degreasing solvent, wipe it off quickly, and then dilute it with more pure water or a neutral detergent and absorb it as soon as possible. But for some special stains, especially in some party occasions, there is no effective way to clean up the colored stains sprayed on. Therefore, before such a lively scene appears, it is best to close your projector screen to avoid hanging colors. Glass bead curtains cannot be cleaned. Commonly used projector screens can be divided into white plastic screens, glass bead screens, metal screens, etc. according to the screen materials. Generally speaking, except that the glass bead curtain material has no cleaning characteristics, other curtain materials can basically choose the appropriate cleaning method according to the degree of contamination. The glass bead screen is widely used because of its high gain and moderate price. However, because the glass bead curtain material has a fine quartz coating on the surface, stains can easily penetrate into the gaps between the particles, and it is difficult to clean up. In addition, the quartz crystal on the surface itself is easily stained with stains, that is, secondary pollution occurs. Therefore, when using the glass bead screen material, you should be extra careful and take good care of it, and it is best to put it away in time when not in use.