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. 05, 2013
Filed:
Dec. 24, 2009
Shingo Ishihara, Mito, JP;
Tsukuru Ohtoshi, Hanno, JP;
Shingo Ishihara, Mito, JP;
Tsukuru Ohtoshi, Hanno, JP;
Hitachi Displays, Ltd., Chiba, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
Organic luminescent elements forming an R sub-pixel, a G sub-pixel, and a B sub-pixel are formed of lower electrodes (, and), hole-transporting layers (, and), luminescent layers (, and), electron-transporting layers (, and), and an upper electrode (), and each of the organic luminescent elements optimizes an optical interference condition. A dielectric alternate laminated film () is formed on the upper electrode (), and forms a micro-resonator with each of the lower electrodes. The micro-resonator structure raises the directivity of a radiation pattern, and improves the light extraction efficiency of each of the organic luminescent elements. A narrow radiation pattern is alleviated by a view angle-controlling layer () formed on the dielectric alternate laminated film () so as to broaden until a perfectly diffusing surface radiation pattern. Consequently, the light extraction efficiency can be improved in an organic luminescent display device.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile