Light emitting diode
First Claim
1. A light emitting diode comprising:
- a substrate having a rectangular shape elongated in one direction;
a light emitting structure comprising a first conductive type semiconductor layer disposed on the substrate, a second conductive type semiconductor layer disposed on the first conductive type semiconductor layer, and an active layer interposed between the first conductive type semiconductor layer and the second conductive type semiconductor layer, the light emitting structure having an opening formed through the second conductive type semiconductor layer and the active layer to expose the first conductive type semiconductor layer;
a first electrode pad disposed on the first conductive type semiconductor layer in the opening to be closer to a first corner of the substrate than other corners thereof;
a second electrode pad disposed on the second conductive type semiconductor layer to be relatively close to a second corner of the substrate that faces the first corner;
a first extension extending from the first electrode pad and including a first curved section extending from the first electrode pad; and
a second extension and a third extension extending from the second electrode pad to both sides of the first extension and including a second curved section and a third curved section at end portions of the second extension and the third extension, respectively, the second curved section and the third curved section having lengths different from each other and greater than that of the first curved section,wherein an imaginary line connecting a distal end of the second extension to a distal end of the third extension is placed between the first electrode pad and the first corner, a center of the first electrode pad is spaced apart from a longitudinal central axis of the light emitting structure, and a distance from the center of the first electrode pad to the longitudinal central axis is smaller than a diameter of the first electrode pad and greater than or equal to a radius thereof.
1 Assignment
0 Petitions
Accused Products
Abstract
A light emitting diode is provided to comprises: a substrate that has an elongated rectangular shape in one direction; a light emitting structure positioned on the substrate and having an opening for exposing a first conductive semiconductor layer; a first electrode pad disposed to be closer to a first corner of the substrate; a second electrode pad disposed to be relatively closer to a second corner of the substrate opposing to the first corner; a first extension extending from the first electrode pad; and a second extension and a third extension extending from the second electrode pad to sides of the first extension, wherein an imaginary line connecting an end of the second extension and an end of the third extension is located between the first electrode pad and the first corner.
59 Citations
11 Claims
-
1. A light emitting diode comprising:
-
a substrate having a rectangular shape elongated in one direction; a light emitting structure comprising a first conductive type semiconductor layer disposed on the substrate, a second conductive type semiconductor layer disposed on the first conductive type semiconductor layer, and an active layer interposed between the first conductive type semiconductor layer and the second conductive type semiconductor layer, the light emitting structure having an opening formed through the second conductive type semiconductor layer and the active layer to expose the first conductive type semiconductor layer; a first electrode pad disposed on the first conductive type semiconductor layer in the opening to be closer to a first corner of the substrate than other corners thereof; a second electrode pad disposed on the second conductive type semiconductor layer to be relatively close to a second corner of the substrate that faces the first corner; a first extension extending from the first electrode pad and including a first curved section extending from the first electrode pad; and a second extension and a third extension extending from the second electrode pad to both sides of the first extension and including a second curved section and a third curved section at end portions of the second extension and the third extension, respectively, the second curved section and the third curved section having lengths different from each other and greater than that of the first curved section, wherein an imaginary line connecting a distal end of the second extension to a distal end of the third extension is placed between the first electrode pad and the first corner, a center of the first electrode pad is spaced apart from a longitudinal central axis of the light emitting structure, and a distance from the center of the first electrode pad to the longitudinal central axis is smaller than a diameter of the first electrode pad and greater than or equal to a radius thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A light emitting diode comprising:
-
a substrate; two or more light emitting cells disposed parallel to each other on the substrate and having an elongated rectangular shape; a first electrode pad disposed on a light emitting cell; a second electrode pad disposed on another light emitting cell; first, second and third extensions disposed on each of the light emitting cells; and one or more connector connecting the light emitting cells to each other, and wherein each of the light emitting cells comprises a first conductive type semiconductor layer, a second conductive type semiconductor layer disposed on the first conductive type semiconductor layer, and an active layer interposed between the first conductive type semiconductor layer and the second conductive type semiconductor layer, and has an opening formed through the second conductive type semiconductor layer and the active layer to expose the first conductive type semiconductor layer, wherein the first extension formed on each of the light emitting cells comprises an extension elongated in a longitudinal direction of the light emitting cell and is connected to the first conductive type semiconductor layer in the opening of each of the light emitting cells, wherein the second extension and the third extension formed on each of the light emitting cells are electrically connected to the second conductive type semiconductor layer of the corresponding light emitting cell and extend from the second electrode pad or the connector to be disposed at both sides of the first extension, wherein the connector connects the first extension of a light emitting cell to the second and third extensions of an adjacent light emitting cell, wherein the one or more connector being disposed near corners of the light emitting cells that face the first electrode pad, the second electrode pad, or other connector in a diagonal direction, and wherein the connectors comprise a linear section inclined with respect to a minor axis direction of the light emitting cells.
-
-
11. A light emitting diode comprising:
-
a substrate; two or more light emitting cells disposed parallel to each other on the substrate and having an elongated rectangular shape; a first electrode pad disposed on a light emitting cell; a second electrode pad disposed on another light emitting cell; first, second and third extensions disposed on each of the light emitting cells; and one or more connectors connecting the light emitting cells to each other, and wherein each of the light emitting cells comprises a first conductive type semiconductor layer, a second conductive type semiconductor layer disposed on the first conductive type semiconductor layer, and an active layer interposed between the first conductive type semiconductor layer and the second conductive type semiconductor layer, and has an opening formed through the second conductive type semiconductor layer and the active layer to expose the first conductive type semiconductor layer, wherein the first extension formed on each of the light emitting cells comprises an extension elongated in a longitudinal direction of the light emitting cell and is connected to the first conductive type semiconductor layer in the opening of each of the light emitting cells, wherein the second extension and the third extension formed on each of the light emitting cells are electrically connected to the second conductive type semiconductor layer of the corresponding light emitting cell and extend from the second electrode pad or the connector to be disposed at both sides of the first extension, wherein the connector connects the first extension of a light emitting cell to the second and third extensions of an adjacent light emitting cell, wherein the one or more connectors being disposed near corners of the light emitting cells that face the first electrode pad, the second electrode pad, or other connector in a diagonal direction, and wherein the transparent electrode layer disposed under the second electrode pad comprises an opening, and a portion of the second electrode pad contacts the second conductive type semiconductor layer or the current blocking layer through the opening.
-
Specification