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How to choose the right screen…

How to choose the right screen…

One size definitely does NOT fit all!

With such a confusing range of display options to choose from, choosing the right size and type of screen for specific applications and particular spaces can be time-consuming and difficult…

How to choose the right screen…

And how to know - or prove - you’ve selected the right one?

All too often, displays are barely ‘good-enough’, rather than ‘best in class’ for their application and location - a missed opportunity to impress clients and guarantee best value.

Use our quick-reference screen guide to understand the four size categories and how to identify the best technology for your needs quickly - and with confidence. 

Let’s start with a spoiler alert: if you don’t get the image size right according to the DISCAS standard’s 6:1 rule (or application of its %Element Height exercise) in today’s socially distanced spaces, you fail at the first step.

Farthest viewer
from screen
Minimum screen
height (m)
Screen size
4 0.8 65
5 0.95 75
6 1.1 86
7 1.25 100
8 1.4 110
9 1.5 120
10 1.7 135
11 1.85 150
12 2 160
13 2.25 180
14 2.4 190
15 2.5 200

Learn all about the DISCAS image size, resolution, viewing positions/angles standard here or on our free webinars.

What size should my screen be?

For a quick and easy way to choose the right display with confidence, we have created this simple 3-Step Guide to Display Success.

Small - up to 55"

Screens up to this size are the go-to option for smaller meeting and teaching spaces up to approx 4m deep. Social distancing has ended shoulder-to-shoulder room layouts, so using the largest size possible lets users spread out while retaining their full engagement.

This size category is a mass market for digital signage throughout built environments.

The products are known as ‘flat panel displays’ (LED-illuminated LCD panels), commodity items available from distributors and resellers. For serious content display use 350cd/m2 (‘nit’) image luminance (or ‘brightness’) and for signage opt for 500cd/m2.

Always ensure the screen has an anti-reflective matt surface - and ALWAYS use professional-grade displays. Using domestic grade screens, displays - or even TVs (Heaven forbid) - you risk reliability and control issues that can end up costing you more than the most expensive display option in the long run. 

Medium - up to 98"

The volume market for meeting and small teaching spaces up to around 7m deep. 

Up to 90”, use flat panel displays. Again, for serious content applications, use 350cd/m2 image luminance (‘brightness’) and  500cd/m2  for signage applications. It’s vital to choose screens with anti-reflective matt surfaces, with your own eyes - and ALWAYS use professional-grade displays.

Above 90” it’s better - and cheaper - to use projection. But it MUST only be projection done properly. This means using ALR (ambient light rejecting) screen technology coupled with laser projectors. Avoid yesterday’s error of using matt white screens which guarantee poor results in high ambient light and waste the money spent on the projector.

Go straight to our Complete Laser Displays: guaranteed to deliver standards-exceeding image quality at a fraction of the price of flat panels.

Large - 100"-120"

Displays for medium/large meeting rooms and small/medium teaching spaces - from approx 7m deep. Projection is the only effective technology here - but only if executed properly.

This important category has been unlocked by our Complete Laser Displays, comprising scientifically selected pairings of projector, ALR (ambient light rejecting) screen plus mount - a single SKU/order code gives you and your client a complete display that can exceed all relevant global AV standards.


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From these sizes, if you plan to locate the bottom of the image around the standard 1.2m from floor level, you can start to bump up against the ceiling! In these cases, set the top of the image up to 10cm from the ceiling and accept the lower ‘baseline’. The top priority is that the image is big enough for the farthest viewers - always.

Extra-Large - 130" to any size

Displays for large spaces. Here, we’re back to two main technologies where choices are high stakes and you risk expensive non-retrievable mistakes.

If you’re presenting serious content, such as teaching, business meetings, presentations, then projection is the only choice - but it must be done properly. 


Direct view LED (dvLED) screens are the go-to choice for digital signage, plus there are outdoor options. They are bright and impactful - too bright for extended ‘serious’ viewing. Also, viewers cannot sit nearly as close to the screen as they can with projection.

Specifying dvLED displays can be a nightmare as apparent like-for-like comparisons hide a vast array of quality issues, based on a ‘binning’ system whereby individual LEDs are graded. Let us help you through this minefield!

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It means using a scientifically selected bundle of laser projector, ALR (ambient light rejecting) screen, plus mount. These complete display packages are carefully curated on the basis of delivered image performance, so they can exceed the globally adopted AVIXA quality standards.

Are off-the-peg solutions off-the-table?

When can I use a standard ‘brown box’ flat panel?

Is there a 100% hassle-free way to use Standards to ensure my clients have their needs met, exceeded - and even to enhance our working relationships?

Off-the-peg solutions don't always tick all the Standards boxes or work well in spaces with high ambient light levels, but we can help tailor those screen solutions and technologies to your exact requirements, ensuring that you don't create 'cheap seats' for your audience.

Contact us now