Method of making a light emitting device having a molded encapsulant

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United States of America Patent

PATENT NO 8303878
APP PUB NO 20120070921A1
SERIAL NO

13307380

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Disclosed herein is a method of making a light emitting device having an LED die and a molded encapsulant made by polymerizing at least two polymerizable compositions. The method includes: (a) providing an LED package having an LED die disposed in a reflecting cup, the reflecting cup filled with a first polymerizable composition such that the LED die is encapsulated; (b) providing a mold having a cavity filled with a second polymerizable composition; (c) contacting the first and second polymerizable compositions; (d) polymerizing the first and second polymerizable compositions to form first and second polymerized compositions, respectively, wherein the first and second polymerized compositions are bonded together; and (e) optionally separating the mold from the second polymerized composition. Light emitting devices prepared according to the method are also described.

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Patent Owner(s)

Patent OwnerAddress
3M INNOVATIVE PROPERTIES COMPANYSAINT PAUL MINNESOTA 55133-3427

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Boardman, Larry D Woodbury, US 65 1643
Leatherdale, Catherine A Woodbury, US 109 2751
Thompson, D Scott Woodbury, US 36 1249

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