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. 31, 2011
Filed:
Nov. 02, 2006
Manabu Oumi, Chiba, JP;
Masayuki Suda, Chiba, JP;
Shuhei Yamamoto, Chiba, JP;
Mitsuru Suginoya, Chiba, JP;
Shigeru Senbonmatsu, Chiba, JP;
Manabu Oumi, Chiba, JP;
Masayuki Suda, Chiba, JP;
Shuhei Yamamoto, Chiba, JP;
Mitsuru Suginoya, Chiba, JP;
Shigeru Senbonmatsu, Chiba, JP;
Seiko Instruments Inc., , JP;
Abstract
In an EL element including a light emitting layer sandwiched between upper and lower electrodes, of light emitted therefrom, light totally reflected at a light emitting layer interface is not taken out, so there is a problem in that light emission efficiency reduces. Therefore, a light scattering layer in which metal particles are dispersed is provided between an electrode and the light emitting layer. According to such a structure, the light from the light emitting layer can be scattered by the metal particles and taken out, thereby improving the light emission efficiency. When plasmon is excited in the metal particles, light confined in the light emitting layer or each layer adjacent thereto can be used, thereby improving light use efficiency.