First of all, the picture quality must be good. Now many movies are on Blu-ray. If the projector doesn't look good, the movies are all mosaics. I'm sure you're not in the mood to watch any more.
Second, the cost performance is high. Why is it cost-effective rather than price? Because since you want to buy it, the picture quality must be good. The most important factor affecting the image quality is the resolution of the projector. The higher the resolution, the higher the clarity, but the higher the price. Considering the price and other factors, the screen resolution of household projection should not be lower than 854×480.
Third, lumen selection, projectors generally use lumens to express their luminous brightness, and the commonly used projector lumen value is between 1000-4000 lumens. Home projector generally does not exceed 2500 lumens. Educational and public projectors are generally around 5000 lumens. Digital projectors used in cinemas are generally above 10000 lumens. This product is not a civilian product and has little contact. Common household and commercial projectors include LCD and DLP. There is a trend towards DLP.
Lumens are not intuitive when expressed by data, which can refer to people's subjective feelings. For example:
When using the common gain curtain, when the lumen of the home projector is 1000, you can see the picture less than1000 inch in the dark room at night, but you can't see the picture clearly in the well-lit room.
When the home computer is at 2000lm, you can see the picture smaller than 100 inch in the darkroom, and you can see the picture clearly in the bright room, but you can't identify the details. Machines above 2000lm are generally commercial machines and can also be used at home.
The 3000lm projector can get an acceptable picture smaller than 100 inch in a bright small conference room.
The 4000lm projector can see high-gray but vivid pictures below 100 inch in a bright room, and can also get vivid pictures below 200 inches in the dark environment of auditorium and conference room.
An engineering machine with 5000-8000 lumens can project a picture of about 300 inches in an auditorium with certain lighting.
10000 lumen projector can clearly display pictures over 300 inches in theaters and auditoriums.
Moreover, the choice of projector is generally based on the projection distance at home, so we need to set the projection distance at home first. At present, the best visual ratio is 16:9, that is, the aspect ratio of video displayed on the curtain. The same projector, different projection distances, we see different screen sizes.
The number of each apartment will be different, and you can choose according to your own specific situation. If the space at home is small, then we can choose LCD projector; If the whole room is dark, you can choose CRT projector. At present, LCD projectors are loved by everyone because of their uniform brightness and good color, and the price is about ten thousand yuan.
The projector can be hung or placed directly on a tripod or coffee table. Lifting requires punching holes in the wall. Although it is troublesome, it does not take up space, and you can choose according to your own situation.
screen
As I said before, you don't need to buy curtains, just have a flat white wall at home, but for various reasons, many families still need to buy curtains, so it will inevitably involve installation. Curtains should be as large as possible 100 inch. After all, the size of LCD TV is very large now, and the size of 133 inch can meet the needs of ordinary families.
The height of curtain installation follows the principle of comfort. Whether we are lying or sitting, we look forward, and the point where our eyes are slightly raised is the center point of the curtain, and the elevation angle is about 10.
At present, the curtains on the market are divided into three types: electric, manual and fixed. Generally, for the sake of beauty, everyone will choose curtains that can be put away. However, some people react that the retractable curtain will be uneven on both sides during the folding process.