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:
May. 08, 2012
Filed:
Nov. 17, 2004
Applicants:
Jeffrey P. Spindler, Rochester, NY (US);
Tukaram K. Hatwar, Penfield, NY (US);
Michele L. Ricks, Rochester, NY (US);
Inventors:
Jeffrey P. Spindler, Rochester, NY (US);
Tukaram K. Hatwar, Penfield, NY (US);
Michele L. Ricks, Rochester, NY (US);
Assignee:
Global OLED Technology LLC, Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 51/54 (2006.01); H05B 33/14 (2006.01); C09K 11/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for selecting two different light-emitting materials for use in an OLED device, each of which produces different color light, which combine to produce white light. Each light emitting material has its own point on a chromaticity diagram, and the light-emitting materials are selected such that, when a line is drawn between the first point and the second point, it passes through a desired white area defined on a chromaticity diagram.