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:
Feb. 28, 2006
Filed:
Dec. 15, 1999
Julian Charles Carter, Cambridge, GB;
Jeremy Henley Burroughes, Cambridge, GB;
Stephen Karl Heeks, Cambridge, GB;
Julian Charles Carter, Cambridge, GB;
Jeremy Henley Burroughes, Cambridge, GB;
Stephen Karl Heeks, Cambridge, GB;
Cambridge Display Technology Limited, Cambridge, GB;
Abstract
An organic light-emitting device comprising a light-emissive organic layer () interposed between first () and second () electrodes for injecting charge carriers into the light-emissive organic layer (), at least one of said first and second electrodes comprising a plurality of layers including a first electrode layer () having a high resistance adjacent the surface of the light-emissive organic layer () remote from the other of the first and second electrodes, said first electrode layer () comprising a high-resistance material selected from the group consisting of a mixture of a semiconductor material with an insulator material, a mixture of a semiconductor material with a conductor material and a mixture of an insulator material with a conductor material.