Lighting device

Patent metadata

Field	Value
Publication number	US-9431576-B2
Application number	US-201514791997-A
Country	US
Kind code	B2
Filing date	Jul 6, 2015
Priority date	Sep 14, 2012
Publication date	Aug 30, 2016
Grant date	Aug 30, 2016

Abstract

A lighting device includes a plurality of light-emitting diodes including a first light-emitting diode with a non-rectangular shape in a top view, a submount to which each of the plurality of light-emitting diodes is coupled, and a plurality of conductive elements formed between the submount and the plurality of light-emitting diodes to electrically connecting at least a portion of the plurality of light-emitting diodes with each other in series.

First claim

What is claimed is:

1. A lighting device, comprising:
a plurality of light-emitting diodes including a first light-emitting diode with a non-rectangular shape in a top view;
a submount to which each of the plurality of light-emitting diodes is coupled; and
a plurality of conductive elements formed between the submount and the plurality of light-emitting diodes to electrically connecting at least a portion of the plurality of light-emitting diodes with each other in series.

2. The lighting device of claim 1 , wherein the non-rectangular shape comprises a diamond shape, a triangular shape, or a hexagonal shape.

3. The lighting device of claim 1 , further comprising a plurality of solder components formed between the submount and the plurality of light-emitting diodes.

4. The lighting device of claim 3 , wherein the plurality of light-emitting diodes comprises a second light-emitting diode having a bonding metal bonded to one of the solder components.

5. The lighting device of claim 1 , wherein the plurality of light-emitting diodes comprises a second light-emitting diode having an electrode, and a bonding metal formed on the electrode and having a width greater than that of the electrode in a cross-sectional view.

6. The lighting device of claim 1 , wherein the lighting device is free of using bonding wires.

7. The lighting device of claim 1 , further comprising a phosphor layer formed on the plurality of light-emitting diodes.

8. The lighting device of claim 1 , further comprising a growth substrate on which the plurality of light-emitting diodes is formed thereon.

9. The lighting device of claim 1 , wherein each of the plurality of light-emitting diodes has two electrodes formed on the same side thereof.

Assignees

• Epistar Corp

Inventors

• Chen Kuan-Chun
• Kuo Hao-Chung
• Lin You-Da
• Li Zhen-Yu

Classifications

• F21Y2115/10

  Light-emitting diodes [LED] · CPC title

• F21Y2105/10

  comprising a two-dimensional [2D] array of point-like light-generating elements · CPC title

• F21S6/00

  Lighting devices intended to be free-standing (F21S9/00, F21S10/00, {F21S13/12} take precedence {lighting devices specially adapted to be transported from place to place, e.g. lighting devices carried on wheeled supports F21L; details of supports for lighting devices F21V21/00}) · CPC title

• F21V3/049

  Patterns or structured surfaces for diffusing light, e.g. frosted surfaces · CPC title

• F21V29/89

  Metals · CPC title