IP Library Granted Patent US 7,659,548
Granted Patent B2
US 7,659,548 · App. 11/570,952 · Granted Feb 9, 2010

White light emitting diode and method of manufacturing the same

Assignee: Konica Minolta Holdings, Inc.
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Quick Facts
Patent No.
US 7,659,548
App. No.
11/570,952
Granted
Feb 9, 2010
Kind
B2
Abstract

Employing a LED which emits light via excitation with UV light, particularly the foregoing high-power LED, disclosed are a white LED exhibiting high reliability and longer operating life, and a method of manufacturing the white LED. Also disclosed are a white light emitting diode possessing a phosphor layer which emits light via excitation with UV light, wherein the phosphor layer consists of phosphor, or possesses phosphor and transparent inorganic oxide, and a method of manufacturing the white light emitting diode, possessing the step of making phosphor particles to collide with a light emitting diode at high speed to deposit the phosphor layer, employing an aerosol deposition process.

Claims (12)

1. A white light emitting diode comprising:

a phosphor layer formed on a light emitting diode which emits light via excitation with UV light,

wherein the phosphor layer consists of a phosphor.

2. A white light emitting diode comprising:

a phosphor layer formed on a light emitting diode which emits light via excitation with UV light,

wherein the phosphor layer consists of a phosphor and a transparent inorganic oxide.

3. A method of manufacturing the white light emitting diode of claim 1 , comprising the step of:

making phosphor particles to collide with a light emitting diode to deposit the phosphor layer on a surface of the light emitting diode, employing an aerosol deposition process.

4. The method of manufacturing the white light emitting diode of claim 2 , comprising the step of:

making phosphor particles to collide with a light emitting diode to deposit the phosphor layer on a surface of the light emitting diode, employing an aerosol deposition process.

5. The method of manufacturing the white light emitting diode of claim 2 , comprising the step of:

making phosphor particles and transparent inorganic oxide particles to collide with a light emitting diode to deposit the phosphor layer on a surface of the light emitting diode, employing an aerosol deposition process.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 27, 2018
From: KONICA MINOLTA, INC.
To: OSRAM OPTO SEMICONDUCTORS GMBH
Reel/Frame 047855/0744 →
MERGER AND CHANGE OF NAME Recorded Jun 22, 2018
From: KONICA MINOLTA HOLDINGS, INC.; KONICA MINOLTA HOLDINGS, INC.
To: KONICA MINOLTA, INC.
Reel/Frame 047198/0815 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 19, 2006
From: WAKAMATSU, HIDEAKI; NABETA, HIROYUKI
To: KONICA MINOLTA HOLDINGS, INC.
Reel/Frame 018655/0283 →
Priority Claims (1)
JP 2004-183649 · Jun 22, 2004 · national
Continuity (1)
Related Publication 20070176194A1 · Aug 2, 2007