Semiconductor light emitting element and method for manufacturing same

A semiconductor light emitting element comprising:

• a first conductive pillar extending in a first direction;
• a second conductive pillar provided apart from the first conductive pillar in a second direction crossing the first direction and extending in the first direction;
• a first semiconductor layer of a first conductivity type provided on the first conductive pillar;
• a light emitting layer provided on the first semiconductor layer;
• a second semiconductor layer of a second conductivity type provided on the light emitting layer and on the second conductive pillar;
• a sealing unit covering a side surface of the first conductive pillar and a side surface of the second conductive pillar;
• and
• a light transmissive layer provided on the second semiconductor layer and having light transmissivity, the light transmissive layer including a first light transmissive material layer and a third light transmissive material layer,
• the first light transmissive material layer including:
• a first concentration portion containing a plurality of particles at a first concentration;
• and
• a second concentration portion aligned with the first concentration portion in a direction crossing a stacking direction from the first film toward the second film and containing a plurality of particles at a second concentration higher than the first concentration,
• the third light transmissive material layer including:
• a third concentration portion containing a plurality of particles at a third concentration;
• and
• a fourth concentration portion aligned with the third concentration portion in the direction crossing the stacking direction and containing a plurality of particles at a fourth concentration higher than the third concentration, and
• at least part of the first concentration portion overlapping at least part of the fourth concentration portion and at least part of the second concentration portion overlapping at least part of the third concentration portion when projected onto a plane perpendicular to the stacking direction.