IP Library Granted Patent US 10,446,730
Granted Patent B2
US 10,446,730 · App. 16/254,811 · Granted Oct 15, 2019

Light emitting device and method of manufacturing the same

Inventor: Jae Joon Yoon (Seoul, KR)
Assignee: LG INNOTEK CO., LTD.
H01L33/62H01L24/97H01L33/38H01L33/44H01L33/486H01L33/54H01L2224/48091H01L2224/48247H01L2924/12035H01L2924/12041H01L2924/14H01L2933/0066
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Quick Facts
Patent No.
US 10,446,730
App. No.
16/254,811
Granted
Oct 15, 2019
Kind
B2
Abstract

Disclosed is a light emitting device and a method of manufacturing the same. The light emitting device includes a body, a first electrode installed in the body and a second electrode separated from the first electrode, a light emitting chip formed on one of the first and second electrodes, and electrically connected to the first and second electrodes, and a protective cap projecting between the first and second electrodes.

Claims (40)

1. A light emitting device, comprising:

a body having a first length in a first direction and a second length in a second direction perpendicular to the first direction;

a first electrode having a first top portion and a first bottom portion, the first top portion of the first electrode including a first protrusion that protrudes in the second direction along a first lateral side of the first bottom portion of the first electrode;

a second electrode having a second top portion and a second bottom portion separated from the first electrode, the second top portion of the second electrode including a second protrusion that protrudes in the second direction along a second lateral side of the second bottom portion of the second electrode;

at least one light emitting chip disposed on the first electrode, wherein the at least one light emitting chip electrically connected to both of the first electrode and the second electrode; and

a protective member being in direct contact with both the first electrode and the second electrode, wherein the protective member has a narrower top surface and a wider bottom surface,

wherein the first electrode includes a first end portion including two end portions exposed in a first lateral side of the body in first direction, wherein an upper portion and a bottom portion of the first end portion include a first step structure,

wherein the first electrode includes a first curved side surface of a first recess region recessed inward from the first lateral side of the body between two end portions,

wherein the second electrode includes a second end portion including two end portions exposed in a second lateral side of the body, wherein an upper portion and a bottom portion of the second end portion include a second step structure,

wherein the second electrode includes a second curved side surface of a second recess region recessed inward from the second lateral side of the body between two end portions,

wherein the first recess region and the second recess region are corresponding to opposite sides of the body, wherein the first recess region and the second recess region are filled by the body such that a bottom surface of the body is flush with the first bottom surface of the first electrode, and

wherein the first electrode includes at least two circular holes that completely pass through the first electrode.

2. The light emitting device of claim 1 , wherein the first curved side surface of the first electrode is disposed in a corner region of the first electrode.

3. The light emitting device of claim 1 , wherein the second curved side surface of the second electrode is disposed in a corner region of the second electrode.

4. The light emitting device of claim 1 , wherein the first top portion of the first electrode includes two first protrusions protruding in the second direction.

5. The light emitting device of claim 4 , wherein the first top portion of the first electrode further includes two third protrusions protruding toward opposite the second direction.

6. The light emitting device of claim 1 , wherein the first recess region of the first electrode includes a first rounded corner.

7. The light emitting device of claim 6 , wherein the first recess region of the first electrode includes two first rounded corners.

8. The light emitting device of claim 1 , wherein the second recess region of the second electrode includes a second rounded corner.

9. The light emitting device of claim 8 , wherein the second recess region of the second electrode includes two second rounded corners.

10. The light emitting device of claim 1 , wherein the protective member is in contact with the first electrode having a first lateral inclined side and the second electrode having a second lateral inclined side.

11. A light emitting device, comprising:

a body having a first length in a first direction and a second length in a second direction perpendicular to the first direction;

a first electrode having a first top portion and a first bottom portion, the first top portion of the first electrode including a first protrusion that protrudes in the second direction along a first lateral side of the first bottom portion of the first electrode;

a second electrode having a second top portion and a second bottom portion separated from the first electrode, the second top portion of the second electrode including a second protrusion that protrudes in the second direction along a second lateral side of the second bottom portion of the second electrode;

at least one light emitting chip disposed on the first electrode, wherein the at least one light emitting chip electrically connected to the first electrode and the second electrode;

wherein the first electrode includes a first end portion including two end portions exposed in a first lateral side of the body in first direction, wherein an upper portion and a bottom portion of the first end portion include a first step structure,

wherein the first electrode includes a first curved side surface of a first recess region recessed inward from the first lateral side of the body between two end portions,

wherein the second electrode includes a second end portion including two end portions exposed in a second lateral side of the body, wherein an upper portion and a bottom portion of the second end portion include a second step structure,

wherein the second electrode includes a second curved side surface of a second recess region recessed inward from the second lateral side of the body between two end portions, and

wherein the first electrode includes at least two holes that completely pass through the first electrode.

12. The light emitting device of claim 11 , wherein the first recess region of the first electrode includes a first rounded corner.

13. The light emitting device of claim 12 , wherein the first recess region of the first electrode includes two first rounded corners.

14. The light emitting device of claim 11 , wherein the second recess region of the second electrode includes a second rounded corner.

15. The light emitting device of claim 14 , wherein the second recess region of the second electrode includes two second rounded corners.

16. The light emitting device of claim 11 , wherein the at least two holes comprise at least two circular holes that completely pass through the first electrode.

17. The light emitting device of claim 11 , wherein the at least two holes is not overlapped with the at least one light emitting chip.

18. The light emitting device of claim 11 , wherein the first curved side surface of the first electrode is disposed in a corner region of the first electrode.

19. The light emitting device of claim 11 , further comprising a protective member being in direct contact with both the first electrode and the second electrode, wherein the protective member has a narrower top surface and a wider bottom surface.

20. The light emitting device of claim 11 , wherein the first top portion of the first electrode includes two first protrusions protruding in the second direction and further includes two third protrusions protruding toward opposite the second direction.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 25, 2021
From: LG INNOTEK CO., LTD.
To: SUZHOU LEKIN SEMICONDUCTOR CO., LTD.
Reel/Frame 056366/0335 →
Priority Claims (3)
KR 10-2009-0118084 · Dec 1, 2009 · national
KR 10-2009-0118085 · Dec 1, 2009 · national
KR 10-2010-0031987 · Apr 7, 2010 · national
Continuity (9)
Continuation 15958902 · Apr 20, 2018
Continuation 15784573 · Oct 16, 2017
Continuation 15617764 · Jun 8, 2017
Continuation 15252312 · Aug 31, 2016
Continuation 14825785 · Aug 13, 2015
Continuation 14684653 · Apr 13, 2015
Continuation 14290783 · May 29, 2014
Continuation 12956626 · Nov 30, 2010
Related Publication 20190157534A1 · May 23, 2019