How to choose the projector curtain with the best cost performance? There is no mistake in recognizing these two points!

We ordinary people in the choice of projection screen, often confused, found that the choice of screen is more difficult than the choice of projector. Today, I’d like to teach you how to choose a projector curtain? How to choose the projection screen. When it comes to curtain, we have to mention two concepts, one is called gain, the other is visual angle. Gain means whether the projection screen can enhance the brightness of the screen projected by the projector. For example, if the projection screen can just reflect the light of the projector, then the gain is 1; if the screen can make the picture brighter, the gain is greater than 1, otherwise, it is less than 1. The larger the value is, the stronger the concentrating power of the curtain is, and the smaller it is, the worse it will be. < / P > < p > visual angle in fact, we can see this saying when we watch TV. For example, the visual angle of curved TV is smaller than that of flat panel TV. The viewing angle of projector curtain is the same, and the larger the angle, the wider the visual range. If the viewing angle is too small, it will lead to people’s picture from the side looking gray. The gain and visual angle are inversely proportional to each other, that is, the greater the gain, the smaller the visual angle. This is because the total amount of light emitted from the projector is certain. If more light is gathered in the same direction, the brightness will naturally increase, but the light in other directions will also be reduced, making the viewing angle smaller. < / P > < p > it can be said that for the projector screen, the gain and visual angle can not be both fish and bear’s paw. If the number of people watching at home is large, the relationship between viewing angle and gain must be controlled; if there are only 1-2 people watching at home, then the visual angle is not so important, and high gain projection screen can be freely selected. With 2050nsi high brightness projectors like dangbei projection F3, you can choose a screen with a larger viewing angle, and you can make a slight compromise in brightness gain. Continue ReadingASMC, a lithography maker, was one of TSMC’s 14 top suppliers last year