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:
Apr. 09, 1991
Filed:
Jan. 16, 1990
Applicant:
Inventor:
Toshiro Hayakawa, Tokyo, JP;
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ; H01L / ; H01S / ;
U.S. Cl.
CPC ...
357 17 ; 357-4 ; 357 16 ; 372 45 ;
Abstract
A heterojunction type light-emitting diode array in which a carrier barrier layer is provided on the emission layer to prevent the diffusion of carriers injected from the junction side of the component light-emitting diodes. An absorption layer is provided on the carrier barrier, which also connects the light-emitting diodes, suppressing crosstalk between adjacent light-emitting elements. The array thus configured provides good emission efficiency and high uniformity.