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:
Jul. 11, 2017
Filed:
Apr. 04, 2013
Sumitomo Chemical Company, Limited, Chuo-ku, Tokyo, JP;
Shoji Mima, Ehime, JP;
Yoshinobu Ono, Ehime, JP;
SUMITOMO CHEMICAL COMPANY, LIMIETD, Chuo-ku, Tokyo, JP;
Abstract
Organic electroluminescent element capable of conveniently and precisely establishing the emission color of the element and capable of fine-adjusting the emission color in the white region. The organic electroluminescent element includes a pair of electrodes and a light-emitting layer provided between the electrodes and presents an emission color at the coordinate Ao (Xo, Yo) in the CIE 1931 chromaticity coordinate system. The light-emitting layer contains in the same layer, a white light emitting material Athat presents an emission color at the coordinate A(x1, y1) in the CIE 1931 chromaticity coordinate system and a white light emitting material Athat presents an emission color at the coordinate A(x2, y2) different from the coordinate A(x1, y1) in the CIE 1931 chromaticity coordinate system. A distance Lbetween the coordinates A(x1, y1) and A(x2, y2) in the CIE 1931 chromaticity coordinate system satisfies L<0.13.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile