Home theater is a huge project involving many aspects such as decoration, equipment selection, installation, commissioning, etc. Any problem in any detail may affect the overall situation and reduce the expressiveness of the home theater. At present, most home theaters choose projectors as display devices, and the choice of projection screens often limits the advantages and disadvantages of projection display. This article will discuss with you the choice of home projection screen.
The first thing to consider when buying a home theater is the ratio of the screen. After deciding the ratio, the next issue to consider is the screen size and viewing distance. Although this issue varies from person to person, some of the suggestions here are worthy of reference.
It should be noted that we should sit too close to the curtain. For example, if you sit in the first row and watch the tennis match, then our head will keep turning and the eyes will be very tired. This is definitely a painful experience. And if your screen is too large, it will feel similar. The oversized image will give the audience a shocking feeling during the first thirty minutes of viewing, but watching it for a long time will be a burden. When you choose the projector and the corresponding screen, you can make a practical test, you can mark the desired model on the required wall, then place the seat at a certain distance you like, and experience the scene. The size of the screen marked. You can debug the image size and your viewing position until you feel comfortable.
Another thing to note is that the larger the image projected by the projector, the closer the seat is to the screen, and the more ç‘•ç–µscanlinesandartifacts. If you look at a two-foot-wide screen two feet away, you'll see a lot of flaws; but if you look at an image of the same size ten feet away, the effect will be much better - this is just a matter of projector scaling.
For XGA and WXGA projectors, viewing is the worst at a viewing distance of 1.5 times the screen width. Even though you can get great images, you will feel tired. And when the distance from the screen is equal to twice or more the width of the screen, you will enjoy very good image effects, and you will be minimized.
In the viewing distance of 1.5 times to 2 times the screen width, the closer to the screen, the clearer the screen, but at the same time there will be more defects. For XGA and WXGA projectors, the viewing distance of twice the screen width is the most suitable viewing location, and the image effects and screen size are just right. But everyone's preferences are always different, you can adjust them according to your preferences.
The above is the main basis for screen selection. Clearly, high-resolution projectors support larger screens and closer viewing distances without affecting image effects; conversely, low-resolution SVGA projectors are suitable for longer viewing distances to eliminate visible image artifacts.
The materials of the projection screen are mainly classified into two categories, namely, elastic curtains and woven curtains.
Elastic screen, mainly including white plastic, gray plastic, special PVC and other materials, is the cloth surface used when tension is needed. The surface coating is smooth and grainless, so the optical imaging is equal to a thin surface, the resolution It is the highest, the sharpness is the best, the image seems to float out of the picture, commonly known as optical coating. This kind of curtain is also used in cinemas. According to different gains, each family has different products, and there are holes to become an optional item for the sound curtain.
The second category is woven curtains. These curtains are mainly made of a layer of woven fabric with different coatings, mainly white curtains, bead curtains and gray curtains. The surface usually affects imaging due to the weave texture, and the image quality is not so good. The disadvantages are that the resolution is not high and the resolution is weak. Stewart and other high-end curtains, these products are not the main force. Of course, there are also good, such as the ultra-fine weaving curtain of Judi, but only a very small number of imported curtains can be done, and the price is expensive.
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