IP Library Granted Patent US 7,790,482
Granted Patent B2
US 7,790,482 · App. 12/370,194 · Granted Sep 7, 2010

Light emitting diode package with diffuser and method of manufacturing the same

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Quick Facts
Patent No.
US 7,790,482
App. No.
12/370,194
Granted
Sep 7, 2010
Kind
B2
Abstract

The invention relates to an LED package for facilitating color mixing using a diffuser and a manufacturing method of the same. The LED package includes a substrate with an electrode formed thereon, and an LED chip mounted on the substrate. The LED package also includes an encapsulant applied around the light emitting diode chip, containing a diffuser. The LED package further includes a lens part disposed on the light emitting diode chip and the encapsulant to radiate light in a wide angle. The LED package allows light from the light emitting diode chip to be emitted out of the package without distortion. The invention allows light to exit through the encapsulant containing the diffuser and the lens part, achieving uniform diffusion and emission of light from the LED chip, thereby increasing a radiating angle and obtaining a uniform light source.

Claims (8)

1. A manufacturing method of a light emitting diode package comprising steps of:

providing a substrate with an electrode formed thereon;

mounting a light emitting diode chip on the substrate;

applying an encapsulant containing a diffuser to cover the light emitting diode chip; and

attaching a lens part on the encapsulant,

whereby light from the light emitting diode chip is emitted out of the package without distortion.

2. The light emitting diode package according to claim 1 , wherein the diffusers comprises an opal based material.

3. The manufacturing method of a light emitting diode package according to claim 2 , wherein the opal based material is one selected from a group consisting of barium titanate, titanium dioxide, aluminum oxide, and silicon dioxide and combinations thereof.

Assignments (1)
MERGER Recorded Aug 7, 2012
From: SAMSUNG LED CO., LTD.
To: SAMSUNG ELECTRONICS CO., LTD.
Reel/Frame 028744/0272 →