An electronic device is disclosed by this disclosure. The electronic device includes a pixel substrate and a first light blocking structure. The pixel substrate includes a first pixel. The first light blocking structure is disposed on the pixel substrate, and the first light blocking structure includes a first unit and a second unit. In a top view direction of the electronic device, the first unit and the second unit are separated from each other in a first direction by a first pitch, and the first pixel has an exposed part between the first unit and the second unit. The exposed part has a first length in the first direction, a first ratio is a ratio of the first length to the first pitch, and the first ratio is greater than or equal to 0.4 and less than or equal to 0.85.