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:
Mar. 17, 2026
Filed:
Oct. 21, 2020
Applicant:
Sharp Kabushiki Kaisha, Sakai City, JP;
Inventors:
Bai Zhang, Sakai City, JP;
Koji Yasukawa, Sakai City, JP;
Assignee:
SHARP KABUSHIKI KAISHA, Sakai City, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H10K 50/17 (2023.01); H10K 50/18 (2023.01); H10K 59/00 (2023.01); H10K 59/12 (2023.01); H10K 85/20 (2023.01);
U.S. Cl.
CPC ...
H10K 50/17 (2023.02); H10K 50/171 (2023.02); H10K 50/18 (2023.02); H10K 50/181 (2023.02); H10K 59/12 (2023.02); H10K 59/1201 (2023.02); H10K 59/771 (2023.02); H10K 85/20 (2023.02);
Abstract
A display device includes a hole injection layer common to a plurality of light-emitting elements between a light-emitting layer and an anode electrode under the light-emitting layer in the light-emitting element of each pixel. The hole injection layer includes a hole injection section configured to transport positive holes to the light-emitting layer, and a neighboring pixel hole blocking section formed in a portion between the light-emitting elements of adjacent pixels and configured to block transportation of positive holes between the light-emitting elements of the adjacent pixels.