ROE Visual Ruby RB1.5: cabinet grid & viewing distance

Pixel pitch is the number that decides everything downstream. At 1.56 mm, Ruby RB1.5's cabinet grid and its optimal viewing band both fall out of the same figure: the recommended viewing distance for video content runs from roughly 1.6 m to 3.1 m (pitch x 1.0 to pitch x 2.0), and the 7 x 7 cabinet layout at a 4 x 2.25 m target is simply how that pitch's cabinet module tiles across the requested area.

1000 nits is a controlled-indoor brightness figure, not a daylight or high-ambient-light rating, so this configuration suits meeting rooms, control rooms, studios, and similar indoor spaces where light levels are managed rather than direct-sun environments. Wall-mount and front-service both describe how the wall is installed and maintained: front-service means individual cabinets or modules can be accessed and serviced from the viewing side without pulling the whole wall off its mount. At the computed 7 x 7 grid, native resolution lands at 2688 x 1512 (about 4.1 MP), which suits broadcast, video-wall, and detailed-content use at typical seating distances rather than banner-style far-viewing displays.

Drag the wall-size input to change width and height and watch the cabinet grid, actual wall dimensions, and native resolution recompute together. Because cabinets are a fixed module size for this pitch, they snap to whole numbers, so the actual wall the calculator reports may differ slightly from the target size you dragged to — that difference is expected and is exactly what the grid rounding shows.

The calculator sizes the cabinet grid, wall footprint, and native resolution for this pitch — it does not decide structural or rigging load for the finished wall weight, the power and data cabling run to each cabinet, the video processor or scaler needed to feed the wall, how source content resolution maps onto the native pixel count, or ambient-light calibration for the room the wall goes into. Those remain separate engineering and installation decisions.