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. 12, 2015
Filed:
Oct. 14, 2010
Masanao Natsumeda, Minato-ku, JP;
Shin Tominaga, Minato-ku, JP;
Goroh Saitoh, Minato-ku, JP;
Masao Imai, Minato-ku, JP;
Masanao Natsumeda, Minato-ku, JP;
Shin Tominaga, Minato-ku, JP;
Goroh Saitoh, Minato-ku, JP;
Masao Imai, Minato-ku, JP;
NEC Corporation, Tokyo, JP;
Abstract
Light source layer () includes substrate () and a pair of layers, namely, hole-transport layer () and electron-transport layer (), formed on substrate (). Directional control layer () includes plasmon excitation layer () stacked on a side of light source layer (), which is opposite to the side of substrate () of light source layer (), and which has a plasma frequency higher than a frequency of light output from light source layer (), and wave vector conversion layer () stacked on plasmon excitation layer (), which converts light incident from plasmon excitation layer () into light having a predetermined exit angle to output the light. Plasmon excitation layer () is sandwiched between low dielectric constant layer () and high dielectric constant layer ().