IP Library Granted Patent US 10,429,011
Granted Patent B2
US 10,429,011 · App. 15/914,190 · Granted Oct 1, 2019

Method of manufacturing light emitting device

Inventors: Tomonori Miyoshi (Tokushima, JP); Kenji Ozeki (Tokushima, JP)
Assignee: NICHIA CORPORATION
F21K9/68F21Y2115/10H01L25/0753H01L33/56H01L33/58H01L33/60H01L2224/16H01L2924/0002H01L2933/0058
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Quick Facts
Patent No.
US 10,429,011
App. No.
15/914,190
Granted
Oct 1, 2019
Kind
B2
Abstract

A method of manufacturing a light emitting device includes: mounting a plurality of light emitting elements on a base material; joining a plurality of translucent members respectively on upper surfaces of the light emitting elements; covering side surfaces of the light emitting elements and side surfaces of the translucent members with a light reflecting member at once; and forming a groove in the light reflecting member between adjacent ones of the light emitting elements.

Claims (44)

1. A method of manufacturing a light emitting device comprising:

mounting a plurality of light emitting elements on a base material;

joining a plurality of translucent members respectively on upper surfaces of the light emitting elements after the mounting of the plurality of light emitting elements on the base material;

covering side surfaces of the light emitting elements and side surfaces of the translucent members with a light reflecting member at once by arranging the light reflecting member to be in contact with at least a part of each of the side surfaces of the light emitting elements after the joining of the plurality of translucent members respectively on upper surfaces of the light emitting elements;

forming cuts in the light emitting device to provide grooves in the light reflecting member between adjacent ones of the light emitting elements, respectively after the covering of the side surfaces of the light emitting elements and the side surfaces of the translucent members with the light reflecting member; and

filling the grooves with a light blocking member after the forming of the cuts.

2. The method of manufacturing a light emitting device according to claim 1 , wherein

the forming of the cuts includes cutting the light reflecting member between the adjacent ones of the light emitting elements from one end of the light reflecting member to the other end of the light reflecting member.

3. The method of manufacturing a light emitting device according to claim 2 , further comprising

forming a frame on the base material so that the frame integrally surrounds the one end of the light reflecting member and the other end of the light reflecting member.

4. The method of manufacturing a light emitting device according to claim 3 , wherein

the filling of the grooves with the light blocking member includes filling an inside of the frame with the light blocking member to place the light blocking member in the grooves.

5. The method of manufacturing a light emitting device according to claim 4 , further comprising

removing the frame.

6. The method of manufacturing a light emitting device according to claim 1 , wherein

the mounting of the light emitting elements on the base material includes spacing the light emitting elements so that a distance between adjacent ones of the light emitting elements is less than a length of one side of each of the light emitting elements.

7. The method of manufacturing a light emitting device according to claim 1 , wherein

the filling of the groove with the light blocking member includes arranging the light blocking member to extend in a straight line in plan view.

8. The method of manufacturing a light emitting device according to claim 1 , wherein

the light blocking member is arranged between every pair of adjacent ones of the light emitting elements mounted on the base material.

9. The light emitting device according to claim 1 , wherein

the translucent member contains a fluorescent material.

10. A method of manufacturing a light emitting device comprising:

mounting a plurality of light emitting elements on a base material;

joining a single translucent member on upper surfaces of the light emitting elements after the mounting of the plurality of light emitting elements on the base material;

cutting the translucent member between adjacent ones of the light emitting elements after the joining of the single translucent member on the upper surfaces of the light emitting elements;

covering side surfaces of the light emitting elements and side surfaces of divided portions of the translucent member with a light reflecting member by arranging the light reflecting member to be in contact with at least a part of each of the side surfaces of the light emitting elements after the cutting of the translucent member;

forming cuts in the light emitting device to form grooves in the light reflecting member between adjacent ones of the light emitting elements after the covering of the side surfaces of the light emitting elements and the side surfaces of the divided portions of the translucent member with the light reflecting member; and

filling the grooves with a light blocking member after the forming of the cuts.

11. A method of manufacturing a light emitting device comprising:

mounting a plurality of light emitting elements on a base material;

covering side surfaces of the light emitting elements with a light reflecting member by arranging the light reflecting member to be in contact with at least a part of each of the side surfaces of the light emitting elements after the mounting of the plurality of light emitting elements on the base material;

forming cuts in the light emitting device to form grooves in the light reflecting member between adjacent ones of the light emitting elements after the covering of the side surfaces of the light emitting elements with the light reflecting member;

filling the grooves with a light blocking member after the forming of the cuts.

12. The method of manufacturing a light emitting device according to claim 11 , further comprising

arranging a single translucent member on upper surfaces of the light emitting elements.

13. The method of manufacturing a light emitting device according to claim 1 , wherein

the forming of the cuts includes cutting the light reflecting member so that the grooves do not reach the base material.

14. The method of manufacturing a light emitting device according to claim 10 , wherein

the forming of the cuts includes cutting the light reflecting member so that the grooves do not reach the base material.

15. The method of manufacturing a light emitting device according to claim 11 , wherein

the forming of the cuts includes cutting the light reflecting member so that the grooves do not reach the base material.

16. The method of manufacturing a light emitting device according to claim 1 , wherein

the covering of the side surfaces of the light emitting elements and the side surfaces of the translucent members with the light reflecting member includes providing the light reflecting member that is configured to substantially reflect light emitted from the light emitting elements.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 7, 2018
From: MIYOSHI, TOMONORI; OZEKI, KENJI
To: NICHIA CORPORATION
Reel/Frame 045131/0258 →
Priority Claims (1)
JP 2013-118558 · Jun 5, 2013 · national
Continuity (2)
Continuation 14293010 · Jun 2, 2014
Related Publication 20180195675A1 · Jul 12, 2018