logo

For the Inventor, By the Inventor

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 12777778 B1

PDFFull Text
Date of Patent:
Oct. 27, 2026

Filed:

Jul. 22, 2022

Display device, display module, electronic device, and method for manufacturing display device

Applicant:

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

Inventors:

Shunpei Yamazaki, Setagaya, JP;

Shinya Sasagawa, Chigasaki, JP;

Ryota Hodo, Atsugi, JP;

Kentaro Sugaya, Isehara, JP;

Yoshikazu Hiura, Atsugi, JP;

Takahiro Fujie, Isehara, JP;

Yasuhiro Jinbo, Isehara, JP;

Assignee:

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

Attorneys:

Eric J. Robinson

Robinson Intellectual Property Law Office, P.C.

Primary Examiner:

Evan G Clinton

Int. Cl.
CPC ...
H10K 59/122 (2023.01); H10K 50/17 (2023.01); H10K 50/18 (2023.01); H10K 59/12 (2023.01); H10K 59/38 (2023.01); H10K 71/20 (2023.01);
U.S. Cl.
CPC ...
H10K 59/122 (2023.02); H10K 50/17 (2023.02); H10K 50/18 (2023.02); H10K 59/1201 (2023.02); H10K 59/38 (2023.02); H10K 71/231 (2023.02);
Abstract

A display device with high display quality is provided. The display device includes a plurality of light-emitting devices each including a pixel electrode, a light-emitting layer, a functional layer, a common layer, and a common electrode in this order and includes an insulating layer positioned between side surfaces of the light-emitting layers adjacent to each other. The light-emitting layer and the functional layer each having an island shape are provided in each light-emitting device, and the plurality of light-emitting devices share the common layer. The common layer and the common electrode are provided to cover the insulating layer. In a cross-sectional view, an end portion of the insulating layer has a tapered shape with a taper angle greater than 0° and less than 90°. The plurality of light-emitting devices each contain a first light-emitting material emitting blue light and a second light-emitting material emitting light having a longer wavelength than blue. A coloring layer is provided to overlap with each of the plurality of light-emitting devices.

Find Patent Forward Citations

Yamazaki, Shunpei. (2026). Display device, display module, electronic device, and method for manufacturing display device (U.S. Patent No. 12777778). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12777778

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…