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:
Oct. 12, 2010
Filed:
Aug. 05, 2008
Kenji Mori, Kariya, JP;
Ichiro Yamamoto, Kariya, JP;
Takanori Murasaki, Kariya, JP;
Kabushiki Kaisha Toyota Jidoshokki, Aichi-ken, JP;
Abstract
The white light-emitting organic EL device of the present invention comprises: an anode, a cathode, at least a red light-emitting layer, a blue light-emitting layer and a green light-emitting layer provided between the anode and the cathode, and an intermediate layer between any two adjacent layers of the respective light-emitting layers, wherein, when CIE chromaticity coordinates of a dopant incorporated into the red light-emitting layer are represented by (x, y), CIE chromaticity coordinates of a dopant incorporated into the blue light-emitting layer are represented by (x, y), CIE chromaticity coordinates of a dopant incorporated into the green light-emitting layer are represented by (x, y), and target CIE chromaticity coordinates of white light emitted from the device are represented by (x, y), Δy represented as a difference between yand y, and Δx represented as a difference between xand xsatisfy the following relationships:Δy≦0.18Δx≦0.10.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile