Projectors vs. LED Walls for Houses of Worship

by | Jan 12, 2023 | Production, Video

Would a video projector or LED wall be the best addition to your worship service? As with many other things, there is no universal, easy answer, since each church has unique needs and resources. However, there are ways to identify which solution would work best for you.

Because many church lighting systems are brighter than they used to be, sanctuary stages are brighter, making it hard for projection screens to be effective. The problem is, a projector shines light onto a projection surface, be it a screen, a curtain, or a bare wall, and you then observe the light as it’s reflected off of that surface. Consequently, light intensity is lost along the way.

In contrast, LED walls are made up of LED pixels. These pixels emit light on their own, rather than reflecting light emitted from another source. And because each LED screen has many, many pixels, each emitting light, the LED wall can offset the intensity of the lighting onstage much more easily than a projector.

Control and size

An added benefit of LED walls is the ability to control the intensity, color, and range of the images displayed. While the sharpness of the image varies by the number of LEDs in the screen and the type of image projected, it’s easy for the user to control the brightness of the screen, and the colors displayed.

LED walls also typically have more flexibility in terms of size and design. You can use one screen, or link many screens, limited only by space and budget. There are even flexible LED walls available that can curve and bend around a space, adding more of a feeling of dimension, or the ability for people to see an image as they move throughout a room.

Viewing angle

Another challenge of projectors is viewing angle. This challenge once again is due to light being reflected from a surface. If you’re not in front of the screen, you’re not going to be able to see the image clearly because it’s not being reflected sufficiently toward you. With an LED screen, as long as you can see the screen you can see the image, because the image is being emitted directly from the screen.

Advantages of projectors

Considering these challenges, it would seem that projectors as a option would be obsolete. Not so. Just as LED lights haven’t completely replaced standard lights, LED walls haven’t replaced projectors, and in fact newer projectors have made strides to overcome some of the challenges. Plus, projectors may be the best option for your budget, or for the use you have in mind.

Space, and also space

First, while an LED wall can be as big as you want it to be, if your stage space is limited, or it’s multi-purpose space, it may make more sense to have a retractable or removable screen. Perhaps the pastor is doing a reading. Before the reading, the screen would be brought down and the words of the passage would be projected on the screen during the reading, so congregants can read along, or so they can be pointed to for discussion. After the reading, the screen retracts and space is made for the worship band to play.

Similarly, if there are seats close to the stage or screen, projectors tend to offer a better, more natural image. As noted in our downloadable Learning Series piece, “The Truth of LED Walls,” the proximity of viewers needs to be carefully considered for video walls to avoid the pixelization of the image. The closer the individual LEDs are to each other, the better the image looks to audiences who are close to the panel. The further LEDs are spread out, the better it looks to audiences farther away.

Example: A 3mm LED screen would look fine to an audience 15 feet to 20 feet from the panel, but a 9mm screen would not. At the same time, a 9mm panel would look fine to an audience 40 feet to 50 feet away from the panel.

Thus, as the size of a worship space increases, LED walls would offer more benefit. To cover the same space, one would have to use multiple projectors whose images would blend at the edge to project the desired image. However, in a small space, perhaps for a smaller house of worship, using one projector, or a few of them, perhaps with a retractable screen, would be a better solution.

Weight and rigging

If you’ve read another Learning Series feature, “How Heavy is Your Roof?“, you know that rigging things properly in your sanctuary is a major safety concern. Lights and speakers are hanging overheard, supported by your ceiling. If your worship space is historic, fragile, or ornate, you don’t want to damage it, and you may not want to damage the beauty of it by making sure it can support the weight of an LED wall. This would again point toward a much lighter, perhaps removable option, namely a screen, as a better choice.

However, keep this in mind: You still have to mount the projector. While a projector won’t weigh as much as a video wall, you still have to have a clear line between the projector and the screen. Make sure to keep all cabling, plugs, other lights, and other obstacles out of the way at all times or the effectiveness is ruined not just for a few people, but for everybody.

Final consideration

There are cost considerations to be taken into account, which involve maintenance and expected product life, and because there are a variety of levels of quality of both LED screens and projectors on the market, you can still find examples of both types of product to fit your budget, that should last for some time. For example, newer laser projectors can work around many of the limitations of bulb projectors, projecting an image across a greater space with little to no loss of clarity or intensity, but those would cost more. And LED walls may cost more initially, but would need little maintenance over time.

However, one key difference may help you make a decision: Catastrophic failure. Imagine that during your Sunday service your standard projector bulb burned out, and you didn’t have a spare on hand. While your service could continue, your ability to project anything would be either totally negated or severely hampered because projectors are a one-point failure device. If one key thing in a projector fails (such as the bulb, the lens, or the power source), the entire thing stops working. If you had an LED wall and one LED burned out, it would hardly be noticeable. If one screen burned out but others worked, you could adapt. In fact, many churches using LED walls have spare screens on-hand in case one does burn out. Regardless of which option you choose, it would seem the best bet is to plan ahead and be ready to adapt.

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