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:
Aug. 09, 2016
Filed:
Mar. 30, 2012
Kai Su, Midland, MI (US);
Zhaorong Weng, Hangzhou, CN;
Wengang BI, Fremont, CA (US);
David Battaglia, Fayetteville, AR (US);
Haoguo Zhu, Fayetteville, AR (US);
Kai Su, Midland, MI (US);
Zhaorong Weng, Hangzhou, CN;
Wengang Bi, Fremont, CA (US);
David Battaglia, Fayetteville, AR (US);
Haoguo Zhu, Fayetteville, AR (US);
Najing Technology Corporation Limited, Hangzhou, Zhejiang, CN;
Abstract
The present invention relates to a light-emitting device including a light source, a first light-emitting material spaced apart from the light source, and at least one additional light-emitting material. The first light-emitting material includes low reabsorbing semiconductor nanocrystals having an emission-center core, an exterior protective shell, and at least one inner light-absorbing shell. The device is useful for efficiently producing white light having a high color rendering index.