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:
Nov. 01, 2011
Filed:
Apr. 12, 2002
J. Devin Mackenzie, San Carlos, CA (US);
Ana Claudia Arias, San Carlos, CA (US);
Richard Henry Friend, Cambridge, GB;
Wilhelm Huck, Gonberton, GB;
J. Devin Mackenzie, San Carlos, CA (US);
Ana Claudia Arias, San Carlos, CA (US);
Richard Henry Friend, Cambridge, GB;
Wilhelm Huck, Gonberton, GB;
Cambridge University Technical Services Limited, Cambridge, GB;
Abstract
A light-emissive device comprising a light-emissive material provided between first and second electrodes such that charge carriers can move between the first and second electrodes and the light-emissive material, wherein the device includes a layer of a polymer blend provided between the first and second electrodes, phase separation of the polymers in the polymer blend having been induced in at least a portion of the polymer blend so as to control the propagation of light emitted by the light-emissive material in a predetermined direction.