A tiled electronic system is disclosed, which includes: a plurality of electronic units including a first electronic unit and a second electronic unit, wherein the second electronic unit is separated from the first electronic unit by a distance in a first direction, wherein the distance is conformed to the following equation (I): d ≥ 8.75 × 10 - 5 × W ⁢ ⁢ 1 × W ⁢ ⁢ 1 2 ( W ⁢ ⁢ 1 2 + W ⁢ ⁢ 2 2 ) ( I ) wherein d is the distance, W1 is a width of the first electronic unit in the first direction, and W2 is a width of the first electronic unit in a second direction perpendicular to the first direction.