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:
Mar. 03, 2015
Filed:
Feb. 03, 2014
International Business Machines Corporation, Armonk, NY (US);
Tze-Chiang Chen, Yorktown Heights, NY (US);
James B. Hannon, Lake Lincolndale, NY (US);
Ning Li, White Plains, NY (US);
Satoshi Oida, Yorktown Heights, NY (US);
George S. Tulevski, White Plains, NY (US);
Devendra K. Sadana, Pleasantville, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A transparent conductive electrode stack containing a work function adjusted carbon-containing material is provided. Specifically, the transparent conductive electrode stack includes a layer of a carbon-containing material and a layer of a work function modifying material. The presence of the work function modifying material in the transparent conductive electrode stack shifts the work function of the layer of carbon-containing material to a higher value for better hole injection into the OLED device as compared to a transparent conductive electrode that includes only a layer of carbon-containing material and no work function modifying material.