1, poor reflective performance of the white wall
The projection screen has a special optical material to enhance its reflective performance, such as increasing gain, expanding viewing angle, increasing resolution, enhancing contrast, enhancing color reproduction, and the like.
White walls do not possess these properties at all, and the rendered images are not as good as the screens in terms of brightness, contrast, or color saturation. Due to the influence of the wall texture, the sharpness of the image is also lost.
2. White walls are easily contaminated
White walls have been used for a long time, and pollution is inevitable or even discolored. The curtain can be put away for protection after use, and it can also be regularly cleaned and maintained.
3, white wall without black border
Do not underestimate this black border, recall that the projection screen, theater curtains, flat-panel TVs, are not designed with a black frame, and most laptops and LCDs are the same. It can improve the attention and contrast of the picture, reduce the influence of the surroundings, and improve the visual quality of the picture itself.
Conclusion: The white wall cannot replace the projection screen, but it does not mean that the white wall cannot be projected.
With the ever-increasing brightness of home projections, we feel that if home projections exceeding 1500 lumens are actually slightly too high in brightness in rooms of less than 15 square meters, and the white walls play a role of soft light, So, of course, you can use a white wall as a projection screen, but you can also get a viewable picture, but it is by no means the best picture effect. However, depending on the situation, the white wall is not the worst choice.
The material of the curtain cloth is divided into white plastic curtain cloth, gray plastic curtain cloth, metal curtain cloth, glass fiber curtain cloth, glass bead curtain cloth and so on.Fiberglass screens will not be able to detect the effects of projectors with white plastic curtains. Curtains will curl more easily at low temperatures.
Metal curtains are mainly used for 3D and light curtains, and now the most popular laser screenless TVs are equipped with metal curtains.
Professional anti-light curtains mostly use sawtooth structure, composed of black light absorption layer, light transmission layer and reflection layer, and can absorb projection screens that block most of the ambient light and are basically non-destructive, in case of strong daylight or ambient light. You can also watch the movie well.
Since the type of curtains and purchase items are considered to be projected with the curtain, how do you choose?First of all, users must position themselves and what kind of private theater they need to build. Starting from their own needs, consider the size of the space, the size of the screen affiliated with the wall, etc.
Currently, the mainstream projection screens in the market mainly include the following types:
Manually self-locking curtains, electric curtains, curtains, curtains, frame curtains.
One of the more widely used household environments is electric curtains.
Although the price of the electric curtain is slightly higher than other kinds, it has obvious advantages: it can be stored freely, it will not be contaminated when it is not used, and it is very convenient to install. At the same time, the use of space is very reasonable, and it will not be produced with other household equipment. conflict. Therefore, we still recommend that users choose an electric screen, worry and effort.
We mentioned earlier that the selection of a projection screen must first consider the size of the living space, affiliation with the size of the wall, and finally consider the size of the curtain selection. The reason why users choose a projector is nothing more than watching a movie, so choosing a 16:9 widescreen is unquestionable. The direct influence on this value is the width of the wall. In addition, considering the distance problem, the center of the screen can be parallel to the eyes, and the ideal viewing distance is best suited to the diagonal length of the screen.
In addition, we must particularly point out that the price range of the curtain is relatively large, and its performance is also greatly different. The gain effect is also increased or decreased due to the variety of the projection screen. Of course, the more professional projection screens will have better gains, which means more expensive prices.
In this remind everyone that the projection screen technology threshold is actually not high, some industry insiders frankly, some low-end projection screen, counterfeiters to buy some machinery and equipment, through a small workshop production, will be able to complete the production of finished products.
There are various problems with counterfeit projection screens. Parts of the screens and manufacturing processes are at a certain distance from genuine products. Seriously, there are potential security risks.
Some inferior screens have a higher profit for the picture. The motor material is extremely poor, or the motor is modified. There is no special flame-retardant technology for the screen surface of the inferior goods. If the motor is burned out, there may be a safety accident such as a fire. In addition, there are also hidden dangers such as formaldehyde exceeding the standard and harmful to physical and mental health.
to sum upIt is possible to project a projection screen on a white wall. It is more convenient in certain specific informal situations, but the actual effect can only be said to make do.
Home users to buy projection is nothing more than to sell high-quality viewing experience and improve the quality of life. Therefore, we suggest that the best condition to have a suitable curtain, its effect on the projection enhancement is still very obvious, when the selection must be combined with the actual situation, should not blindly seek greater.
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