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:
Apr. 21, 2009
Filed:
Oct. 23, 2007
Hajime Nakamura, Yokohama, JP;
Hajime Nakamura, Yokohama, JP;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method for simulating characteristics of a light-emitting device by calculating optical and electrical properties of the light-emitting device includes steps of calculating a concentration of excitons in the light-emitting device and calculating data sets including a first data set comprising a light extraction efficiency, a second data set comprising a total emission power factor of excitons, a third data set comprising a photometric quantity and a fourth dataset comprising an emission power factor and a power reflector. The method further includes calculating a device characteristic of the light-emitting device in a measurable dimension.