Lg Innotek Co., Ltd.

Yun Kyung Oh

Sung Kyoon Kim

Sung Ho Choo

A light emitting device includes a light emitting structure having a plurality of light emitting regions including a first semiconductor layer, an active layer, a second semiconductor layer, a first electrode in one of the light emitting regions, a second electrode in another of the light emitting regions, and at least one connection electrode to sequentially connect the light emitting regions in series. The light emitting regions connected in series are divided into 1st to ith light emitting region groups. Areas of light emitting regions that belong to different groups are different. An area of a light emitting region which is more frequently used among the plurality of light emitting regions is larger than an area of a light emitting region which is less frequently used among the plurality of light emitting regions.

Light emitting device

A light emitting device including a light emitting structure comprising a plurality of light emitting regions comprising a first semiconductor layer, an active layer and a second semiconductor layer, a first electrode unit disposed on the first semiconductor layer in one of the light emitting regions, a second electrode unit disposed on the second semiconductor layer in another of the light emitting regions, and at least one connection electrode to sequentially connect the light emitting regions in series, wherein the light emitting regions connected in series are divided into 1to ilight emitting region groups and areas of light emitting regions that belong to different groups are different (where 1&#x3c;i&#x2266;j, each of i and j is a natural number, and j is a last light emitting region group).

Disclosed is a light emitting device including a light emitting structure including a plurality of light emitting regions including a first semiconductor layer, an active layer and a second semiconductor layer, and a plurality of boundary regions disposed between the light emitting regions, a first electrode unit disposed on the first semiconductor layer in one of the light emitting regions, a second electrode unit disposed on the second semiconductor layer in another of the light emitting regions, at least one connection electrode to electrically connect the first semiconductor layer of one of adjacent light emitting regions to the second semiconductor layer of the other thereof, and an intermediate pad disposed on the first semiconductor layer or the second semiconductor layer in at least one of the light emitting regions, wherein the light emitting regions are connected in series through the connection electrode.

Series of light emitting regions with an intermediate pad

Disclosed is a light emitting device including: a light emitting structure including a plurality of light emitting regions including a first semiconductor layer, an active layer and a second semiconductor layer; a first electrode unit disposed on the first semiconductor layer in one of the light emitting regions; a second electrode unit disposed on the second semiconductor layer in another of the light emitting regions; an intermediate pad disposed on the second semiconductor layer in at least still another of the light emitting regions; and at least one connection electrode to sequentially connect the light emitting regions in series, wherein the light emitting regions connected in series are divided into 1to ilight emitting region groups and areas of light emitting regions that belong to different groups are different (where 1&#x3c;i&#x2266;j, each of i and j is a natural number, and j is a last light emitting region group).

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Seoul, South Korea

Yun Kyung Oh