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. 15, 2014
Filed:
Jan. 05, 2011
Ryuichi Katayama, Minato-ku, JP;
Ryuichi Katayama, Minato-ku, JP;
NEC Corporation, Tokyo, JP;
Abstract
The present invention provides a light emitting element which emits linearly polarized light, has high efficiency, can show a higher luminance and has also adequate productivity. The light emitting element that includes an active layer composed of a semiconductor which generates light includes: a polarizer layer that allows a polarized component in a first direction among the lights generated in the active layer to pass therethrough, reflects a polarized component in a second direction which is perpendicular to the first direction, is formed on a semiconductor of the same group as the active layer, and contains a semiconductor or a metal of the same group as the active layer; a reflective layer that is provided in the opposite side of the polarizer layer with respect to the active layer, and reflects light which has been reflected by the polarizer layer; and a wavelength plate layer that is provided between the polarizer layer and the reflective layer, changes polarization states of the light which has been reflected by the polarizer layer and the light which has been reflected by the reflective layer, and contains a semiconductor of the same group as the active layer.