Light emitting element and method for manufacturing the same

A light emitting element, comprising:

• a plurality of light emitting units comprising a first electrode and a second electrode;
• an insulating photosensitive material layer partially covering the plurality of light emitting units, the insulating photosensitive material layer comprising a plurality of recesses for exposing a plurality of effective light emitting regions of the plurality of light emitting units;
• and
• a plurality of cladding layers, each of the cladding layers surrounding a sidewall of each of the light emitting units, and each of the cladding layers being between the sidewalls of two adjacent ones of the organic light emitting units, wherein the plurality of cladding layers cover a portion of an upper surface of the first electrode, and wherein the first electrode has a first edge and a second edge opposite to or adjacent to the first edge, the portion of the upper surface of the first electrode extends inward from the first edge by a first distance, the portion of the upper surface of the first electrode extends inward from the second edge by a second distance, and the first distance is greater than the second distance.

A method for manufacturing a light emitting element, comprising:

• providing a substrate;
• forming a plurality of electrodes over the substrate;
• forming a cladding material layer over the plurality of electrodes;
• patterning the cladding material layer to form a plurality of cladding layers surrounding a plurality of sidewalls of the plurality of electrodes, and exposing a plurality of upper surfaces of the plurality of electrodes, wherein the plurality of cladding layers are not connected to one another among the plurality of electrodes;
• disposing an insulating photosensitive material over the plurality of electrodes and the plurality of cladding layers;
• patterning the insulating photosensitive material to form an insulating photosensitive material layer, which exposes a plurality of effective light emitting regions of the plurality of upper surfaces of the plurality of electrodes;
• and
• disposing an organic light emitting material over the plurality of effective light emitting regions of the plurality of electrodes, wherein the plurality of electrodes comprises a first electrode and a second electrode, and the plurality of cladding layers cover a portion of an upper surface of the first electrode, and wherein the first electrode has a first edge and a second edge opposite to or adjacent to the first edge, the portion of the upper surface of the first electrode extends inward from the first edge by a first distance, the portion of the upper surface of the first electrode extends inward from the second edge by a second distance, and wherein the first distance is greater than the second distance.