Direct view LED video walls are a great way to create a high quality image of nearly any size. But not all LED video walls are well-suited for every environment. One guiding factor is a video wall’s pixel pitch, or the density of pixels (LED clusters) on the display.
The larger the pixel pitch, or the less densely packed the pixels are, the farther away viewers must be to have a good experience. If a viewer is too close, they’ll be able to see the gaps in between pixels and will have difficulty making out the content.
Unfortunately, smaller pixel pitches are typically associated with higher costs. Because of this, it’s often best to find the largest pixel pitch possible based on the viewing distance. This can be a challenge when other aspects of the project are still being decided on.
The relationship between quality and distance is easily understood and visualized with Modus VR’s Pixel Pitch design assistant. Simply add a direct view LED wall, like the Barco XT Series, and at least one seat. Then, enable the Pixel Pitch assistant from the Global tab.
Once the assistant is enabled, each head will be given a green, yellow, or red status indicator. Green means the viewer is at an optimal distance from the screen and will not be able to see a gap in between the pixels. Yellow means the viewer is above the minimum distance, but may still see some gaps. Red indicates that the viewer is too close and will have a poor experience.
We’ve partnered with Barco to determine the optimal and minimum distances.
The visible gap in between pixels is also approximated by the distance between each colored stripe.
Finally, when calculating the viewing distance, it’s critical to measure distance to the closest pixel and not distance to the center of the screen. The closest pixel for each viewer is also indicated on the screen itself.
Like all other design assistants in Modus VR, the Pixel Pitch assistant is updated in real time. This lets you quickly adjust positions and parameters in the room to optimize the experience.
Finally, all direct view LED walls in Modus let you select from the manufacturer’s available pixel pitches. Simply select the screen and go to the properties tab to see which settings are available for a particular model.
As you can see below, going from a 0.9mm pixel pitch, to a 1.5mm, to a 2.5mm can have a significant impact on the viewing experience.
Modus VR’s Pixel Pitch design assistant helps system designers know exactly what pixel pitch is required for an optimal experience and rapidly communicates expected performance to the project stakeholders.