The reason for choosing a projector is simple. Compared with a TV, it has a larger viewing size, comfortable viewing and shocking effects, and you can see more picture details that are not on the TV. But it is very laborious to purchase. Various parameters are stacked, and there are 20 to 30 items. The following is an explanation of the purchasing skills of home projectors from the important parameters, so that you are no longer confused when buying, and do not buy blindly before you understand it.
First, look at the most important performance indicators of the projector: projector brightness, resolution, color, contrast, light source, focal length, life, and cost. Secondly, look at the usage scenarios, the environment brightness, and the space size.
There are usually two goals in designing a projector. One is to sacrifice brightness to ensure color, the other is to sacrifice color to ensure brightness, and the other is that both parameters tend to be in the middle. This trade-off is a normal phenomenon of product research and development. Generally, if you choose a mini home projector, don't choose too high brightness, but choose a model with better color effects, resolution, wider screen, and better appearance.
Next, analyze the parameters: which light source should be used for home projectors?
In the current market, LED projectors have a larger market share and better brightness performance. The laser projector has the advantages of high brightness, wide applicability and excellent color expressiveness. But its price is also a lot more expensive, costing more than 1,489 dollars.
Usually, the brightness of household projectors is between 1000~3000lm. The ambient light during the day is too strong, no matter what the brightness, shading treatment is needed. When it comes to this, many people will think: I actually really want a projector that is not affected by ambient light. It is annoying to draw the curtain every time. Is this idea reliable? It can be clearly said that it is unrealistic. The reason is very simple. The projector reflects light through the screen, so the ambient light will also reflect through the screen.The ambient light brightness is constant, and the projection must have an image, and it must be close to no light when the picture is black. If the general environment remains the same, no amount of effort will pay off.
The resolution of home projectors is mostly 720P and 1080P. This difference is easy to understand. It is the difference between watching more documents or watching more movies. The clarity of course is the clearer, the better. 1080p is enough for daily home use,moreover, 4K video sources are not yet fully popular.
It doesn't really matter whether it's LCD or DLP. What we need to look at is the effect of the projector, and the effect of a projector is inseparable from many things such as the lens, light bulb, and circuit. The key point is the lens material. At present, many hot-selling projector models on the market use coated lenses, which will cause the phenomenon of virtual focus and out of focus for a long time.
The throw ratio reflects the distance of the projection picture of projector. The smaller the ratio, the smaller the space requirement. For an ordinary projector, the throw ratio is 1.5 to 1.9, and the distance to project a 100-inch screen is about 3 meters. Therefore, the projector with the corresponding throw ratio should be selected according to the size of the space.
Finally, consider the following aspects:
- The ease of use of the projector: the portable home theater projector must first be simple to operate, not too complicated; the operation is suitable for all ages, simple and convenient.
- The intelligence of the projector: the projector needs to have a built-in Android operating system, so you can watch online movies and online TV as you want; online games can be played as you want; the projector needs wireless projection function; the projector has a rich built-in film source and the operating system UI is user-friendly.
- The ease of installation of the projector: minimize the complexity of the installation of the machine; do not need to connect unnecessary cables; support wireless on-screen; support various smart terminal devices such as audio/video/TV wireless connections.