ROE Ruby 2.3
Ideal2.3 mm · retina at 7.91 m
Retina distance 7.91 m sits just inside the closest viewer at 8 m: nobody sees pixels and nothing is wasted.
A 10 × 5 m wall would be 4,320 × 2,160 px
Tell it how far away the audience sits and how bright the room is. It works out the pitch range and picks the panels that fit — then hands the answer to the planner.
For a closest viewer at 8 m, aim for 1.05 – 2.33 mm. Coarser and they see the grid; finer and you are paying for pixels nobody can resolve.
Retina distance 7.91 m sits just inside the closest viewer at 8 m: nobody sees pixels and nothing is wasted.
A 10 × 5 m wall would be 4,320 × 2,160 px
Retina distance 7.91 m sits just inside the closest viewer at 8 m: nobody sees pixels and nothing is wasted.
A 10 × 5 m wall would be 4,320 × 2,160 px
Retina distance 6.7 m sits just inside the closest viewer at 8 m: nobody sees pixels and nothing is wasted.
A 10 × 5 m wall would be 5,120 × 2,560 px
Retina distance 6.53 m sits just inside the closest viewer at 8 m: nobody sees pixels and nothing is wasted.
A 10 × 5 m wall would be 5,120 × 2,560 px
Retina distance 6.53 m sits just inside the closest viewer at 8 m: nobody sees pixels and nothing is wasted.
A 10 × 5 m wall would be 5,120 × 2,560 px
Retina distance 6.53 m sits just inside the closest viewer at 8 m: nobody sees pixels and nothing is wasted.
A 10 × 5 m wall would be 5,120 × 2,560 px
Retina distance for 8 m of viewing is 8.01 m. Figures are planning guidance, not a specification.
A person with 20/20 vision resolves about one minute of arc. Two LEDs spaced p millimetres apart stop being distinguishable at roughly 3438 × p millimetres — the retina distance. Below it you see a grid of dots; beyond it you see an image.
So the pitch is set by your closest viewer, not your average one. The furthest viewer matters for a different reason: they set how physically large the screen has to be to read at all. Going finer than the closest viewer needs is money spent on resolution nobody in the room can see — which is why this tool flags overkill as loudly as it flags a pitch that is too coarse.
Brightness is the other half. A panel that looks brilliant in a dark hall disappears in daylight: direct sun needs roughly 5,000 nits where an indoor show is happy with 800.
Panel figures come from a curated catalog. Extended specs such as brightness are indicative at product-family level — confirm them against the manufacturer’s datasheet before committing to a design.