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:
Oct. 28, 1997
Filed:
Jan. 11, 1996
Applicant:
Inventors:
Takahiro Nakayama, Hitachi, JP;
Atsushi Kakuta, Hitachiohta, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01S / ;
U.S. Cl.
CPC ...
372 99 ; 372 92 ; 372-7 ; 372 50 ; 372 39 ;
Abstract
A first half-mirror, a buffer layer, a second half-mirror, a transparent electrode, an organic luminescent layer and a metal electrode which also serves as a reflector are formed on a transparent substrate thereby to constitute a first resonator between the second half-mirror and the metal electrode and a second resonator between the first half-mirror and the metal electrode. Light output of a desired wavelength is obtained from the light emitted from the organic luminescent layer utilizing resonance characteristics of the first and second resonators.