Electronic device

An electronic device, comprising:

• a substrate, defining a normal direction perpendicular to a surface of the substrate;
• an electronic component disposed on the substrate;
• a first blocking structure disposed adjacent to a side of the electronic component, wherein there is a gap between the first blocking structure disposed adjacent to the side of the electronic component and a second blocking structure disposed adjacent to a side of another electronic component adjacent to the electronic component, and there is no other electronic component disposed in the gap;
• and
• a packaging layer comprising m sub-layers sequentially disposed on the electronic component, wherein m is a positive integer greater than 1;
• wherein a name of each of the sub-layers is defined as a ith sub-layer, the ith sub-layer has a refractive index ni at a wavelength of 550 nm, the ith sub-layer has a height Hi in the normal direction, i is a positive integer from 1 to m, the electronic component has a width W in a first direction perpendicular to the normal direction, a distance H is between a surface of the first blocking structure away from the substrate and the surface of the substrate in the normal direction, a spaced distance P1 is between the surface of the first blocking structure away from the substrate and the electronic component in the first direction, and following relationships are satisfied:
• ∑
• i
• =
• 3
• m
• Hi
• /
• ni
• =
• [
• (
• P
• ⁢
• 1
• +
• W
• )
• /
• tan
• ⁢
• θ
• ]
• ,
• wherein 30°≤θ≤60°, and
• H
• =
• ∑
• i
• =
• 3
• m
• Hi
• .