LED Sign Pixel Pitch Explained

Resolution, Pixel Pitch and How to Choose

As you will learn in this video, pixel pitch is one of the most important factors in determining how clear, readable, and effective an LED sign will be. Whether you’re planning a digital sign for a storefront, school, church, or stadium, understanding pixel pitch will help you choose the right display for your audience and viewing distance.

This video explains what pixel pitch is, why it matters, and how to choose the right pixel pitch for your LED sign.

What is Pixel Pitch?

A pixel is a grouping of 3 LEDs – one green, one red, and one blue, and pixel pitch refers to the distance, in millimeters (mm) between the centers of two adjacent pixels. Pitch is commonly written as a number followed by “mm”, such as 6mm or 10mm. Increasing the pitch is going to spread out the pixels and give you a lower resolution for a more grainy image. A smaller pitch is going to compress the pixel spacing and result in a higher resolution and a more detailed image. Our pitch values range from 4mm, which is our highest resolution, to 19mm, our lowest resolution.

When deciding what sign and pixel pitch is best for your sign, location and viewing distance are the two most important factors.

Why Pixel Pitch Matters for LED Displays

High-detail product photos and up-close viewing – like pedestrian audiences or slow-moving, very close traffic, for instance — generally work best with a higher resolution. Signs that will be installed far from traffic or very high can be a lower resolution. Choosing the right pixel pitch ensures your message is clear without overspending on unnecessary resolution. Matching pixel pitch to the real‑world viewing conditions ensures maximum impact and long‑term value.

General Guidance on Pixel Pitch by Application

• Retail environments and outdoor storefronts: 4mm, 6mm or 8mm
• Schools, churches and Main Street businesses: 6mm, 8mm or 10mm
• Roadside and highway signs or digital billboards: 16mm or 19mm
• Stadiums and large venues: 6mm and up, depending on display size

Pixel Pitch FAQs

Does a smaller pixel pitch always mean better quality?
Not necessarily. Smaller pixel pitch improves clarity up close, but at long distances and large sizes, our brains can blend the pixels and the difference becomes unnoticeable. The “best” pixel pitch for your specific application depends on viewing distance and sign size.

Does pixel pitch affect LED sign cost?
Yes. Smaller pixel pitch displays use more LEDs per square foot, which increases cost. Choosing the right pitch with guidance from a trusted Watchfire sign dealer partner ensures you have the right display for your location.

Can I mix pixel pitches on one sign?
Most LED signs use a single pixel pitch for consistent image quality, though different displays on the same property may use different pitches based on viewing distance.

Watch the video above to see how Watchfire products are classified and how to consider pixel pitch in your LED sign purchase plan.