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. 29, 2011
Filed:
Feb. 25, 2009
Toshinori Hasegawa, Yokohama, JP;
Toshinori Hasegawa, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
Provided are an organic light-emitting device that has wide viewing angle characteristics and enables excellent color reproduction, and a display apparatus including the organic light-emitting device. In the device, an optical path between a first reflective surface formed on the first electrode side with respect to an emission layer and a second reflective surface formed on a second electrode side with respect to the emission layer are set so as to resonate light emitted in the emission layer, and a first region with a relatively short optical path Land a second region with a relatively long optical path Lare provided, wherein Land Lare set to satisfy Expression 1 with resonant wavelengths λ, λ, and λ, a sum φt of phase shifts when light is reflected by the first reflective surface and the second reflective surface, and a viewing angle α:λ=2/(/2π)λ=2/(+1−φ/2π)λ=2cos α/(/2π)λ=λ=λ  (Expression 1)wherein p and q each independently represent a positive integer and α is not 0°.