Below you will find the disadvantages to owning a projector:
Ambient light can ruin the display
Ambient light can affect an image regardless of how bright the projectors ANSI rating is. If you don’t have complete control over the light in a room, images will not turn out very good. Projectors work best when used in the evenings. If you want to use your projector during the daytime, make sure to use it alongside an Ambient Light Rejecting Screen.
They aren’t usually the complete package
Projectors by themselves can end up not providing and end value. It can’t project videos and pictures if it has no source connection, like a smartphone or laptop. If the projector doesn’t have a built-in speaker, you will have to connect one.
Projectors are to assembled computers as TVs are to All-in-one computers. While custom computers are versatile and robust, they won’t work if they’re missing an essential piece. All-in-one computers are convenient and usually preferred though.
Resolution isn’t always the best
If you would like to purchase a 4K projector, things can become a bit confusing – especially if you’ve never purchased a projector before and aren’t very familiar with image resolutions. Not every projector that has the 4K projector label is actually 4K – some can be UHD since manufacturers tend to round the number of pixels in that resolution up to 4K. Projectors that come with a native 2K chip that, through the use of pixel shifting, display 4K content are often sold as 4K projectors.
A person who doesn’t know much about projector would just assume that the projector is 4K, and manufacturers don’t really help with this misconception much. Another question one may have to ask is “does the image upscaling affect the image quality?”. The short answer is that it does, and the images may end up looking sharper – which explains why many companies who mis market their products don’t catch flack for doing so.
It can be a pain in the arse to setup
Projectors need to be turned on, screens have to be setup (if you’re using a screen, one has to make sure the wall is free of any irregularities, peripheral devices need to be connected (speakers), the image has to be positioned accurately, etc.
It can be a pain to set up a projector if you use your projector throughout the day. Televisions, on the other hand, only need to be turned on. Not to mention there may be driver concerns one has to think about.
Noise
Some projector fans can make a large deal of noise. Even though the noise isn’t the same as that in an airplane cabin, it can sometimes be enough to get in the way of your content watching. The more powerful the projector is (it usually has something to do with the heat produced by the projector and the effort put into cooling it down), the more noise the projector will make.
On that same note, projectors in movie theaters tend to make more noise than home cinema projectors. Why?
Well, movie theater projectors are more powerful than consumer grade projectors.
Another thing to consider is that less-expensive projectors tend to make more noise than higher end projectors, since they use cheaper motors and fans. If the parts of a projector are tuned correctly, the noise they make can be lowered. That isn’t to say that all expensive projectors are quiet, just that they tend to use more expensive parts.
The quality of the image isn’t always great
Projectors actually come with a number of display issues. These issues tend to stem from one purchasing a lower end projector – meaning that the more you spend on your projector, the better the image usually is.