Is the smell of projection white plastic screen harmful to human health?

Generally speaking, the projection screen is not allowed to have a smell, because it does not meet environmental protection standards, but now many domestic projection screens are using some unenvironmentally friendly curtains, formaldehyde exceeds, this is the reason for the smell, of course, it is still harmful to the human body, if the real use of imported curtains, there will be no smell, or the curtain has just opened a little bit of smell is normal, usually disappears in half an hour, this is because of the closed packaging of the screen.

No, a good horse with a good saddle, a good projector needs a good projection screen to reflect. It's like if you buy a nice shirt, you go and find pants, shoes and even a hat to match your shirt. It's the same thing.

There is no principle of complementarity.

Those are definitely two concepts, and if you use them at home, it's better to use gray screens. If you use it for meetings, you can use white plastic.

For home curtains, it is recommended to use gray curtains. The brightness of gray screen projection is more concentrated.

If it's an electric pull cord, it's even better.

Probably not, ventilate for a few days, maybe it will be better.

It'll be fine after a while.

The display effect of white plastic and glass fiber under the same quality grade is not much different, both are white screens, belonging to the diffuse reflection type, characterized by excellent color reproduction, but the gain value of white glass fiber will be slightly higher than that of white plastic, but generally we watch movies at night, the difference is relatively small.

However, at present, white plastic and glass fiber are graded.

Good white plastic is not much different from general glass fiber, but the gap between poor white plastic and white glass fiber is still relatively large.

It is recommended to use white plastic at home, the gain of white plastic is low, and the viewing angle is relatively wide, ** It is also more affordable at present! Suitable for family users! The glass beads are generally commercial-oriented, the gain is too high, and the viewing angle is small, so it is not recommended to buy.

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Glass bead screen: It is a fine glass bead particle with electrostatic adsorption and adhesive diameter on the surface of the curtain. When the light is projected onto the glass beads, the light naturally returns, and the gain is measured at the position of the projector lens.

Viewing angle 70 degrees. The glass bead screen should not be scrubbed.

White plastic curtain: It is to engrave the optical pattern with a matte coating on the surface of the curtain to play a role in self-diffusion, and it does not absorb light. The white plastic curtain can be scrubbed, the viewing angle is wide, the light is evenly distributed, the color reproduction degree is high, and the gain viewing angle is 160 degrees.

The white plastic projection screen is relatively flat, and the top of the glass beads is a small particle like a bead, which can be stained if you touch it with your hands.

For small pieces of non-wetting stains, use an eraser.

When there are relatively small non-wetting stains, it is better to gently wipe them off with an eraser. However, if the quality of the eraser is not good enough or the colored eraser may not be completely erased and leave a puddle of marks, so pay special attention to the use of pure white high-grade eraser, which is easy to buy in stationery stores. As for the erasing method, I think back to the warm situation when I revised my homework, and I know what to do.

If the area of a liquid stain or stain is large, use a detergent!

First of all, make sure that the pH of the detergent is as neutral as possible. Because the screen base and coating, most of which are resin or rubber materials, are susceptible to corrosion and discoloration.

Second, don't use oil-based cleaners and brighteners like Belle Franc. You can choose water-based, volatile foam cleaners, which have no damage to the screen, and you can also choose from cleaners such as collars in supermarkets.

Finally, it's important to know what tools you use to clean your projection screen. Because the surface of the curtain is actually uneven, it is necessary to choose a tool that has as small molecular particles as possible, such as polymer sponge, which is very fine and can fully remove the dust in the pit after the detergent is moistened and softened. On the other hand, use a rough sponge or towel, which is difficult to clean the fine stains in the recesses of the curtain.

For oily stains, use a cotton ball dipped in a small amount of degreasing solvent.

This situation is more difficult to deal with, and if it is not handled properly, there is a great risk. Only use a cotton ball dipped in a small amount of degreasing solvent first, quickly wipe off and desalination, and then dilute with more pure water or neutral detergent and blot dry as soon as possible. However, there is no effective way to clean up some special stains, especially the colored stains sprayed on some party occasions.

So before this kind of lively scene appears, it's best to put away your projection screen quickly to avoid hanging colors.

The glass bead screen should not be cleaned.

Commonly used projection screens can be divided into white plastic screens, glass bead screens, metal screens, etc. In general, except for the glass bead curtain material, which does not have the characteristics of cleaning, the other curtain materials can basically choose the appropriate cleaning method according to the degree of fouling.

Glass bead curtain, because of its high gain and moderate gain, is widely used. However, because of the fine quartz coating on the surface, the stain can easily penetrate into the gaps between the particles, and it is difficult to clean up. In addition, the quartz crystals on the surface are also easy to be stained, that is, secondary pollution occurs.

Therefore, when using the screen of glass bead curtain material, you should be extra careful and caring, and it is best to put it away in time when not in use.

The curtain is basically divided into four types: the first is a soft curtain, the second is a glass fiber curtain, the third is a woven white plastic curtain, and the fourth is a glass bead curtain. I think the effect of the white plastic screen is better.

Most of the gains of the white plastic curtain are unequal, the reflected light is softer, and it is not easy to get tired for a long time, and the viewing angle is also larger, so it is no problem to look at it from the side.

The gain of the gray plastic screen is below, but due to the gray plastic material, it can effectively improve the contrast of the picture, but now the contrast ratio of the more advanced projectors is more than "10000 to 1".

Which ant in the home is recommended to use white plastic, the gain of white plastic is low, but the viewing angle is also relatively wide, ** is also more affordable at present! Suitable for family users! The glass beads are generally commercial-oriented, the gain is too high, the viewing angle is small, and it is recommended to buy it without stage burning.

The glass bead curtain can enhance the contrast compared with the white plastic screen, and the natural effect will be better. Conditionally on the metal curtain!