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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.:

US 12707847 B1

PDFFull Text
Date of Patent:
Aug. 11, 2026

Filed:

Apr. 13, 2022

Display apparatus

Applicant:

Semiconductor Energy Laboratory Co., Ltd., Kanagawa-ken, JP;

Inventors:

Shunpei Yamazaki, Tokyo, JP;

Daiki Nakamura, Atsugi, JP;

Ryo Yamauchi, Atsugi, JP;

Kenichi Okazaki, Atsugi, JP;

Shingo Eguchi, Atsugi, JP;

Assignee:

Semiconductor Energy Laboratory Co., Ltd., , JP;

Attorney:

Husch Blackwell LLP

Primary Examiner:

Elmito Breval

Int. Cl.
CPC ...
H10K 59/122 (2023.01); H10K 50/00 (2023.01); H10K 59/00 (2023.01); H10K 59/35 (2023.01); H10K 59/80 (2023.01); H10K 50/10 (2023.01);
U.S. Cl.
CPC ...
H10K 59/353 (2023.02); H10K 50/00 (2023.02); H10K 59/00 (2023.02); H10K 59/122 (2023.02); H10K 59/80515 (2023.02); H10K 50/10 (2023.02); H10K 59/871 (2023.02); H10K 59/873 (2023.02);
Abstract

A display apparatus with a wide viewing angle is provided. The display apparatus includes a first light-emitting element and a second light-emitting element over a substrate. The first light-emitting element includes a first pixel electrode, a first organic layer, and a common electrode, and the second light-emitting element includes a second pixel electrode, a second organic layer, and the common electrode. In a top view of the substrate, the first light-emitting element includes a first side and a second side that is shorter than the first side. An absolute value of a difference between a chromaticity difference between a chromaticity in a front direction and a chromaticity in a first direction and a chromaticity difference between the chromaticity in the front direction and a chromaticity in a second direction is less than or equal to 0.05. A projection of the first direction onto the substrate is parallel to the first side, and a projection of the second direction onto the substrate is parallel to the second side. An angle formed by the first direction and a normal direction of a surface of the substrate is 70°, and an angle formed by the second direction and the normal direction of the surface of the substrate is 70°.

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