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. 11, 2000
Filed:
Nov. 13, 1998
Applicant:
Inventors:
Ching W Tang, Rochester, NY (US);
Kee-Chuan Pan, Pittsford, NY (US);
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05D / ; B05D / ;
U.S. Cl.
CPC ...
427 66 ; 427 69 ; 427 70 ;
Abstract
A method of making an organic light-emitting device is disclosed in which a dopant layer is formed adjacent to a light-emitting layer containing a light-emitting host material. The dopant is diffused from the dopant layer into the light-emitting layer by exposing the light-emitting layer and the dopant layer to vapor of a fluid or fluid mixture. The method permits doping of a light-emitting layer with one dopant or with multiple dopants so as to modify the color and efficiency of light emitted from the light-emitting layer.