What is a 4K Projector?

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Updated December 7, 2022

“What is a 4K projector?” is easy enough to answer and understand. Those looking into building a digital cinema will have undoubtedly looked at a short-throw projector. These are a natural choice for the job. However, you’ll also need accurate color representation for the beautiful images produced. Investing in the best projectors with 4K technology is the right way to do this. If you want to dive in now, first read our ViewSonic 4k Projector review.


  • 4K refers to the distinct pixels an entertainment projector can produce, which for 4K models is a 4096 x 2160 HD resolution.
  • These projectors produce a high light output, translating into a wider color gamut with more accurate color reproduction.
  • When putting together a digital cinema, you need to have impactful projectors to provide an immersive experience.

Are High-Resolution Projectors Worth It?

Common concerns for projectors include ambient light, frame rates, and viewing distance. Investing in a 4K model will ease all of these concerns. Keep in mind that these models will use HDMI 2.0 connections since HDMI 2.0 is the only wired connection offering high-definition data transfer. This is what you’ll find in the Optoma UHD 50X model. Although, check out our resource article about projector VGA vs HDMI connections.

Insider Tip

A portable projector is a solid choice for those who are always on the move and is an excellent addition to anybody’s camping experience.

There’s more to overcoming ambient light than resolution, however. If you’ve ever wondered, “What material is a projector screen made of?” then now is a great time to educate yourself. You can also educate yourself on our additional info articles that will vastly improve your projector experience, such as: “Improving color with a projector,” “Understanding projector native resolution vs supported resolution,” and “How to get wrinkles out of a projector screen?” 

Understanding 4K Projection Technology

4K projectors, as you’ll learn about in our ViewSonic LS700 4K laser projector review, contain more physical pixels than lower definition counterparts. This means that they can transmit more data and achieve more accurate color reproduction than lower-end projectors. 4K just refers to resolution and is used to describe the high density of pixels.

You’re probably wondering, “Why are 4K projectors so expensive?” The obvious answer is that they have fantastic technology, but it goes a little deeper than that.

Explaining Pixel Density and Resolutions

As explained earlier, pixel density is the reason for crisp, colorful images. Every digital picture has a certain number of “pixels,” The number of pixels on your screen is responsible for image quality. The higher number of pixels, the better the image. Resolution refers to the number of pixels, as well. Compare the BenQ HT3550 vs Optoma UHD50x, if you’d like to see the resolution rating in other 4K projector brands. 

Benefits of 4k Projector Screens

While you don’t need special projection screens to use your 4K projector, it helps quite a bit, especially if you’re learning how to connect a projector to a phone. After all, you wouldn’t want to put a subpar motor in a luxury sports car. The same ideas carry over to projection screens and projectors. You don’t need the biggest screen out there, but you should have a 4K screen that can match the excellence of your 4K projector.

On the other hand, if you’re using an HD projector like the model in our Optoma GT1090HDR review, a regular screen will work fine.


A Blu-Ray disc requires a special system to play, so make sure you have a Blu-Ray player before buying the discs.


How does screen texture relate to projector quality?

Resolution is just the number of physical pixels present. The higher the native resolution, the higher the difference in image quality. However, a smooth texture will help preserve the distinct pixels available. For the best visual experience, choose a smooth texture for your screens.

What is the difference between a 4K Android TV and a 4K projector?

The most significant difference is the price range. You can get a cheaper price for a TV. However, projectors are still the best choice for genuinely cinematic colors and a more dynamic range for customization.

How do I choose the perfect home theater projector?

You’ll need to be able to play 4K Blu-Ray discs, so make sure you invest in Blu-Ray players ahead of time. For truly cinematic experiences, invest in cinema projectors. You’ll also want a cinema screen that produces accurate, cinematic colors.

Do 4K-enhanced HD projectors need a 4K screen?

Not technically, no. However, most people purchase 4K-enhanced HD projectors to play the latest movie releases just like they do at a movie theater. Even if you’re optimizing your display with 4K Blu-Ray discs, it won’t matter if the screen isn’t up to par.

STAT: 8K TVs contain double the pixels per inch as compared to 4K models. (source)

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