Outdoor Digital Signage
1. Viewing distance and time
Before you start picking sign sizes, consider where the majority of your audience will be when it reads your message. A 1-inch character is viewable from about 50 feet away – therefore, someone standing 400 feet away from your sign would need the letters to be at least 8 inches tall to read them. Also consider the local traffic patterns; a driver going 45 mph past your business has less time to read your message than a pedestrian on the sidewalk. The typical person needs 3-4 seconds to read 6-8 groupings of text and/or graphics. For example, the phrase “Volunteers needed. Call 555-1212” has four groupings of text.
2. Text vs. graphics
You may not need bright, vivid graphics and animation on your sign if all you’re showing is stock prices, community
announcements, or the time and temperature. To display basic graphics adequately, you’ll need your LED display to be at least 16-32 pixels tall.
3. Message content
How much content will you display at once? Don’t try to cram it all into one screen – LED signs allow you to display multiple messages by cycling through them at a delayed interval that you choose. Think about how many lines of text and number of characters per line you want – a good guideline is at least 2 lines of text and 12 characters per line. If you go with a full-matrix display that can show graphics and animation, also consider the resolution, which is defined by the pitch (the distance between 2 pixels) and the number of pixels in your display. Usually, a larger number of pixels indicates a higher resolution.
4. Physical size
After you’ve resolved the above issues, it’s time to choose the size of your sign. Many manufacturers offer similar sizes, and some can customize a digital sign to retrofit a space formerly occupied by a static message board.
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