LIGHT EMITTING DEVICE

• US 20140362570A1
• Filed: 06/02/2014
• Published: 12/11/2014
• Est. Priority Date: 06/05/2013
• Status: Abandoned Application

• Current Assignee: Nichia Corporation
• Original Assignee: Nichia Corporation
• Inventors: MIYOSHI, Tomonori, OZEKI, Kenji
• Application Number:
  US14/293,010
• Publication Number:
  US 20140362570A1
• Time in Patent Office: Days
• US Class Current: 362/240
• CPC Class Codes: F21K 9/68 Details of reflectors forming part of the light source
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: H01L 2224/16 of an individual bump connector
• CPC Class Codes: H01L 25/0753 the devices being arranged next to each other
• CPC Class Codes: H01L 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/0002 Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
• CPC Class Codes: H01L 2933/0058 relating to optical field-shaping elements
• CPC Class Codes: H01L 33/56 Materials, e.g. epoxy or silicone resin
• CPC Class Codes: H01L 33/58 Optical field-shaping elements
• CPC Class Codes: H01L 33/60 Reflective elements

Abstract

A light emitting device include a plurality of arrayed light emitting elements, each light emitting element including a plurality of side faces; at least one light reflecting member that covers the side faces of each of the light emitting elements; and at least one light blocking member disposed in between light emitting elements and disposed separated from the light emitting elements.

Claims

1. A light emitting device comprising:

a plurality of arrayed light emitting elements, each light emitting element including a plurality of side faces;

at least one light reflecting member that covers the side faces of each of the light emitting elements; and

at least one light blocking member disposed in between light emitting elements and disposed separated from the light emitting elements.

2. The light emitting device according to claim 1, further comprising

at least one translucent member that covers at least one upper face of the light emitting element,

the light reflecting member covers side faces of the translucent member.

3. The light emitting device according to claim 2, wherein

the light blocking member is disposed between the light reflecting members that cover the side faces of the translucent member and is disposed in between the light emitting elements.

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

the light emitting elements are joined on a base material and

an embedding material is embedded between the base material and the light emitting elements.

5. The light emitting device according to claim 4, wherein

the embedding material is formed from a light reflecting resin.

6. The light emitting device according to claim 2, wherein

upper faces of the translucent member, the light reflecting member and the light blocking member substantially lie on the same plane.

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

a plurality of light emitting elements are mounted on the base material so as to be independently driven according to a wiring pattern of the base material.

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

the light reflecting member has a groove at between the light emitting elements, and the light blocking member is disposed in a groove formed in the light reflecting member.

9. The light emitting device according to claim 8, wherein

the groove is disposed extending to the ends of the light reflecting members.

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

the light blocking member is disposed in a straight line between the light emitting elements.

11. A light emitting device comprising:

a plurality of arrayed light emitting elements, each light emitting element including a plurality of side faces;

light reflecting members that covers the side faces of each of the light emitting elements; and

at least one light blocking member disposed between the light reflecting members in between light emitting elements.

12. The light emitting device according to claim 11, further comprising

at least one translucent member that covers at least one upper face of the light emitting element,

the light reflecting member covers side faces of the translucent member.

13. The light emitting device according to claim 12, wherein

the light blocking member is disposed between the light reflecting members that cover the side faces of the translucent member and is disposed in between the light emitting elements.

14. The light emitting device according to claim 11, wherein

the light emitting elements are joined on a base material and

an embedding material is embedded between the base material and the light emitting elements.

15. The light emitting device according to claim 14, wherein

the embedding material is formed from a light reflecting resin.

16. The light emitting device according to claim 12, wherein

upper faces of the translucent member, the light reflecting member and the light blocking member substantially lie on the same plane.

17. The light emitting device according to claim 11, wherein

a plurality of light emitting elements are mounted on the base material so as to be independently driven according to a wiring pattern of the base material.

18. The light emitting device according to claim 11, wherein

the light reflecting member has a groove at between the light emitting elements, and the light blocking member is disposed in a groove formed in the light reflecting member.

19. The light emitting device according to claim 18, wherein

the groove is disposed extending to the ends of the light reflecting members.

20. The light emitting device according to claim 11, wherein

the light blocking member is disposed in a straight line between the light emitting elements.