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Knowledge Center · LED Display Basics

LED Display Basics: Pixel Pitch, Resolution, Viewing Distance & Core Terms

Start here if you are comparing LED display specifications for the first time. Learn how pixel pitch, viewing distance, screen dimensions, native resolution and core LED terminology work together before moving into product or application selection.

Pixel PitchViewing Distance ResolutionScreen Size Aspect RatioLED Terminology
Start Here

How to choose LED display specifications without over-specifying the project

Begin with the viewing environment and screen dimensions, then determine the pixel density needed for the content. This is more reliable than selecting the smallest pixel pitch first.

Read the pixel pitch guide
01
What pixel pitch should I choose?Viewing distance · image detail · screen size
 02
How far should you stand from a P1.5, P2.5 or P3.9 LED display?Viewing distance guide
 03
How do you calculate LED wall resolution from width, height and pixel pitch?Resolution guide
 04
1080p vs 4K LED wall: what screen size and pixel pitch do you need?Native resolution guide
Explore the Basics

Build the specification from the fundamentals

These six topics form the foundation for most LED display decisions. Learn them in any order, or follow the recommended decision path below.

Pixel Pitch

Understand what P1.2, P1.5, P2.5, P3.9 and other pitch values mean for pixel density and image detail.

Explore topic →

Viewing Distance

Learn how closest viewing distance changes the pixel pitch needed for text, graphics and video.

Explore topic →

Resolution

Calculate native LED resolution from physical screen dimensions and pixel pitch.

Explore topic →

Aspect Ratio

Understand 16:9, custom aspect ratios and how content format affects LED wall dimensions.

Explore topic →

Screen Size

Connect width, height, cabinet dimensions and target resolution before finalizing the display.

Explore topic →

LED Terminology

Use the glossary for refresh rate, grayscale, nits, scan rate, IP rating and other core terms.

Open glossary →
Recommended Learning Path

From project dimensions to a practical LED specification

01 · DistanceConfirm the closest important viewing distance.
02 · SizeDefine physical screen width, height and aspect ratio.
03 · PitchSelect a pitch that provides sufficient image detail.
04 · ResolutionVerify native resolution against content requirements.
Featured Guides

Start with the questions that influence the rest of the specification

Existing Guide · Pixel Pitch

What Pixel Pitch Should I Choose for an LED Display?

Understand how viewing distance, image detail and project conditions affect the practical choice between fine and larger pixel pitches.

Read guide →
Guide · Viewing Distance

P1.5 vs P2.5 vs P3.9 at 2 m, 5 m and 10 m

Read guide → Guide · Resolution

How to Calculate LED Wall Resolution

Read guide → Guide · 4K

What Pixel Pitch Do You Need for a 4K LED Wall?

Read guide →
Engineering Reference

Three relationships to remember

Pitch ↓

Pixel density increases

Smaller pitch means more pixels within the same physical area, but it does not automatically mean it is the right commercial choice.

Distance ↑

Larger pitch becomes more practical

As the audience moves farther away, individual pixel structure becomes less visible and larger pitch can remain visually acceptable.

W × H ÷ P

Dimensions and pitch determine resolution

Native LED resolution comes from the physical display dimensions together with the selected pixel pitch.

Continue Exploring

Move from fundamentals to project decisions

Knowledge Center

Buying Guides

Compare specifications before quotation. Knowledge Center

Technology & Engineering

Refresh rate, COB/SMD, grayscale, HDR and more. Knowledge Center

Application Guides

Conference rooms, rental, XR, stadium and retail. Knowledge Center

Installation & Maintenance

Power, structure, service access and maintenance. Knowledge Center

Troubleshooting

Flicker, color difference, moiré and failure diagnosis. Knowledge Center

LED Glossary

Quick definitions for technical LED display terms.
Project Support

Already know your screen size and viewing distance?

Share the application, screen dimensions, closest viewing distance and project location. UNIVIEW LED can help narrow the practical pixel pitch and product direction.

Discuss Your ProjectBack to Knowledge Center

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