The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 22, 2016
Filed:
Nov. 19, 2014
Applicant:
Nitto Denko Corporation, Osaka, JP;
Inventors:
Hiroaki Miyagawa, Oceanside, CA (US);
Bin Zhang, San Diego, CA (US);
Assignee:
NITTO DENKO CORPORATION, Osaka, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 33/50 (2010.01); C09K 11/77 (2006.01); C09K 11/02 (2006.01); C04B 38/06 (2006.01); B32B 18/00 (2006.01); C04B 35/44 (2006.01); C04B 35/626 (2006.01); C04B 35/634 (2006.01); C04B 35/638 (2006.01); H01L 51/52 (2006.01); C04B 111/80 (2006.01);
U.S. Cl.
CPC ...
C09K 11/7774 (2013.01); B32B 18/00 (2013.01); C04B 35/44 (2013.01); C04B 35/6261 (2013.01); C04B 35/634 (2013.01); C04B 35/638 (2013.01); C04B 38/067 (2013.01); C09K 11/02 (2013.01); H01L 33/502 (2013.01); H01L 33/505 (2013.01); H01L 33/507 (2013.01); C04B 2111/80 (2013.01); C04B 2235/3208 (2013.01); C04B 2235/3217 (2013.01); C04B 2235/3224 (2013.01); C04B 2235/3225 (2013.01); C04B 2235/3229 (2013.01); C04B 2235/5409 (2013.01); C04B 2235/6025 (2013.01); C04B 2235/6562 (2013.01); C04B 2235/6565 (2013.01); C04B 2235/6582 (2013.01); C04B 2235/663 (2013.01); C04B 2235/764 (2013.01); C04B 2235/9646 (2013.01); C04B 2235/9661 (2013.01); C04B 2237/34 (2013.01); C04B 2237/341 (2013.01); C04B 2237/343 (2013.01); C04B 2237/704 (2013.01); H01L 51/5268 (2013.01); H01L 2933/0041 (2013.01); H01L 2933/0091 (2013.01);
Abstract
Described herein are elements for light emitting devices comprising: an emissive element comprising a host material and an emissive guest material and substantially free of light scattering material; and a light scattering element comprising either a non-emissive or an emissive material, wherein the light scattering element is between about 2.5% to about 60% by volume voids and the thickness ratio of light scattering element to the emissive element is at least 1 to about 2.