Pixel pitch is the distance between the centers of adjacent pixels. A smaller pitch places more pixels into the same physical area, but the right choice depends on the project.
Start with the closest viewer
Measure the closest position from which people need to read or inspect the content. A distant roadside audience and a close-up meeting room have different needs. Avoid selecting a display from a single distance rule alone.
Work out the canvas
For a simple rectangular display, horizontal pixels are approximately screen width in millimeters divided by pitch in millimeters. A 4,000 mm-wide display at 2.5 mm pitch has approximately 1,600 horizontal pixels. Actual dimensions follow the selected module and cabinet layout.
Test the intended content
Small text, charts and fine details need more consideration than large moving images. Review a sample of the real content at the intended display resolution before finalizing the configuration.
Balance the complete project
Compare the display, processing, structure, power, installation and maintenance requirements together. Ask for a configuration-specific datasheet and a demonstration where possible.