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:
Sep. 27, 2005
Filed:
Aug. 22, 2002
Yoshiyuki Suzuri, Tokyo, JP;
Kazuo Genda, Tokyo, JP;
Hiroshi Kita, Tokyo, JP;
Konica Corporation, Tokyo, JP;
Abstract
A multicolor light emission apparatus is disclosed which comprises a first organic EL element having a first maximum emission wavelength in a blue light wavelength region; and a second organic EL element having a second maximum emission wavelength longer than the first maximum emission wavelength; wherein the first organic EL element comprises a first light emission layer containing a first host and a first dopant, and the second organic EL element comprises a second emission layer containing a second host and a second dopant, and wherein each of the first and second hosts has an emission wavelength region which is shorter than the blue light wavelength region.