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:
Jun. 30, 2009
Filed:
Jun. 22, 2005
Applicants:
Benjamin C. Krummacher, Sunnyvale, CA (US);
Mathew Mathai, Santa Clara, CA (US);
Vi-en Choong, San Jose, CA (US);
Stelios A. Choulis, San Jose, CA (US);
Inventors:
Benjamin C. Krummacher, Sunnyvale, CA (US);
Mathew Mathai, Santa Clara, CA (US);
Vi-En Choong, San Jose, CA (US);
Stelios A. Choulis, San Jose, CA (US);
Assignee:
Osram Opto Semiconductors GmbH, Regensburg, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 1/62 (2006.01); H01J 63/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
An electroluminescent apparatus includes an OLED device emitting light in the blue and green spectrums, and at least one down conversion layer. The down conversion layer absorbs at least part of the green spectrum light and emits light in at least one of the orange spectra and red spectra.