Light emitting element

A light-emitting element comprising:

• a substrate;
• first to Nth light-emitting cells disposed on the substrate and spaced apart from each other (here, “N” is a positive integer of 2 or more);
• first to N−1th connection wires configured to electrically interconnect the first to Nth light-emitting cells;
• a first bonding pad located in the first light-emitting cell among the first to Nth light-emitting cells;
• and
• a second bonding pad located in the Nth light-emitting cell among the first to Nth light-emitting cells,
• wherein each light-emitting cell, excluding the Nth light-emitting cell, among the first to Nth light-emitting cells has a first planar area as follows:
• Ai
• ′
• =
• AR
• -
• α
• (
• N
• -
• 1
• )
• (here, “Ai′” indicates the first planar area, “AR” indicates the reference planar area, and “α” indicates the incremental amount),
• wherein the first to Nth light-emitting cells are separated from each other on a plane by a boundary area located around the first to Nth light-emitting cells,
• wherein the first to Nth light-emitting cells comprise:
• first adjacent light-emitting cells adjacent to each other in a first direction;
• and
• second adjacent light-emitting cells adjacent to each other in the first direction and adjacent to the first adjacent light-emitting cells in a second direction orthogonal to the first direction,
• wherein the boundary area comprises:
• a first boundary area disposed between the first adjacent light-emitting cells;
• and
• a second boundary area disposed between the second adjacent light-emitting cells and spaced apart from the first boundary area in the first direction, and
• wherein all of boundary areas which are disposed between the light-emitting cells adjacent to each other in the first direction among the first to Nth light-emitting cells are spaced apart from each other in the first direction.

A light-emitting element, comprising:

• a substrate;
• a plurality of light-emitting cells arranged on the substrate and spaced apart from each other, each of the light-emitting cells comprising a first conductive semiconductor layer, an active layer, and a second conductive semiconductor layer sequentially disposed on the substrate;
• a connection wire configured to electrically interconnect the light-emitting cells;
• a first bonding pad electrically connected to the second conductive semiconductor layer of a first light-emitting cell among the light-emitting cells;
• and
• a second bonding pad electrically connected to the first conductive semiconductor layer of a second light-emitting cell among the light-emitting cells,
• wherein the light-emitting cells are separated from each other on a plane by a boundary area located around the light-emitting cells,
• wherein the boundary area comprises a first boundary disposed between the light-emitting cells adjacent to each other in a first direction among the plurality of light-emitting, and
• wherein all of the first boundary areas are spaced apart from each other in the first direction.