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Topic: Most common aspect ration/resolution in schools?
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Joined: Sep 26, 2017
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Hi all,

I wondered if you could spare a few minutes to help me.

I run a small charity that's just got investment to building a web app. This will be shown on the projectors/IWB to the class in primaries and secondaries. It's a really big project for us and I'm keen to get it right!

I wondered if anyone could help us with estimates on:

- Most commonly used aspect ratio on projectors
- Most commonly used resolution used
- % split between IWB and standard projector/screen

Really grateful if you've got any pointers

Greg
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Joined: Mar 28, 2005
Posts: 11,744
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I'm not sure of the true specifics you are asking about. That level of research would likely be done by a projector manufacturer like Epson would deals with it every day, but nothing is really published.

The reality remains that projectors aren't magic stand-alone devices, they receive content from a computer, and most often these days, it is from a laptop.

The MOST common laptop aspect ratio is 16:9. It matches all consumer televisions that are in existence and the vast majority of monitors on the face of the earth are now 16:9 aspect ratio as well.

If you check a place like Newegg.com or even Dell, you will find that the aspect ratio has pretty much been locked into 16:9.

There is also the 16:10 aspect ratio, which receives a fair bit of use in the projection industry for absolutely no reason at all. But, the use of a 16:10 projector doesn't mean that a 16:10 screen is used. Many, if not most, projectors allow you to choose the screen aspect ratio. So, if you have a 1920x1200 projector, and use a 16:9 screen, you set the projector to '16:9 screen' mode, and it turns of the top and bottom 60 pixels leaving the projector operating as a 1920x1080 projector.

A company that is hot in the interactive whiteboard market is Promethean:
https://www.prometheanworld.com/products/interactive-whiteboard-systems/images/ActivBoard_10_Touch_SS_0617v1.5_US_EN.pdf?language_id=1

They have adopted 16:10, because it matches their bottom of the line projectors they purchase, and they aren't a very forward thinking company. They also have 4:3 stuff, but no modern consultant would recommend that as a solution.

I would stick with 16:9.

The resolution is a bigger issue as almost everyone in the business world demands 1920x1080 resolution, yet the schools all are buying 1280x800 projectors. Once again, 16:10 projectors, which should work fine in the 16:9 aspect ratio, matching the screen built into the laptop.

It's all really, REALLY stupid right now and very poorly thought out, engineered, and managed.
AV Integrated - Theater, whole house audio, and technology consultation during the build and installation process in the Washington, DC metropolitan area.