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:
May. 29, 2012
Filed:
Dec. 15, 2009
Toshinori Hasegawa, Yokohama, JP;
Naoto Nakamura, Mobara, JP;
Masato Yajima, Tokyo, JP;
Ryota Watanabe, Utsunomiya, JP;
Toshinori Hasegawa, Yokohama, JP;
Naoto Nakamura, Mobara, JP;
Masato Yajima, Tokyo, JP;
Ryota Watanabe, Utsunomiya, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An organic light-emitting element includes a first electrode, a second electrode, and at least one organic compound layer disposed between the first electrode and the second electrode. The organic compound layer includes a light-emitting layer containing a light-emitting material and being configured to emit light toward the first electrode and the second electrode. The light emitted toward the first electrode is reflected from a reflection plane located at the first electrode to cause interference with the light emitted toward the second electrode. The interference provides an interference intensity distribution having a maximum peak at a wavelength λ. The light-emitting material of the light-emitting layer exhibits a photoluminescence spectrum having a maximum peak at a wavelength λ. The organic light-emitting element produces an electroluminescence spectrum having a maximum peak at a wavelength λ. These wavelengths satisfy the relationships: λ≠λand |λ−λ|<|λ−λ|.