Light-emitting device

A light-emitting device, comprising:

• a substrate;
• an active device located on the substrate;
• a first light-shielding layer located on the active device and having a first opening, wherein a depth of the first opening is about 4 microns to 10 microns;
• a transparent electrode located on the first light-shielding layer and electrically connected to the active device;
• a second light-shielding layer located on the transparent electrode and having a second opening corresponding to the first opening, wherein a depth of the second opening is about 0.5 microns to 2 microns, and a relationship between a width W11 of the first opening facing the transparent electrode and a width W21 of the second opening facing the transparent electrode is 80%≤W21/W11≤130%;
• a light-converting layer substantially located in the first opening;
• an electroluminescent structure substantially located in the second opening, wherein the transparent electrode is located between the first opening and the second opening and is in contact with the light-converting layer and the electroluminescent structure;
• and
• a top electrode, wherein the electroluminescent structure is located between the top electrode and the transparent electrode.