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:
Aug. 06, 1991
Filed:
Jul. 19, 1989
Applicant:
Inventors:
Yoshitaka Tomomura, Nara, JP;
Masahiko Kitagawa, Nara, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
428690 ; 313503 ; 313509 ; 357 17 ; 428901 ;
Abstract
The present invention provides an electroluminescent device of Group II-VI compound semiconductor which comprises a substrate, a light-emitting portion, and a conductive portion provided at least between the substrate and the light-emitting portion for injecting into the light-emitting portion the current to be produced in the device by the application of an external voltage.