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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 12527149 B1

PDFFull Text
Date of Patent:
Jan. 13, 2026

Filed:

Mar. 06, 2023

Light-emitting device, material screening method and display panel

Applicant:

Yungu (Gu'an) Technology Co., Ltd., Hebei, CN;

Inventors:

Yu Gao, Hebei, CN;

Mengyu Liu, Hebei, CN;

Zhi Huang, Hebei, CN;

Xiaowen Wang, Hebei, CN;

Junzhe Liu, Hebei, CN;

Jiaxin Sun, Hebei, CN;

Assignee:

YUNGU (GU'AN) TECHNOLOGY CO., LTD., Langfang, CN;

Attorney:

Maier & Maier, PLLC

Primary Examiner:

Mohammad A Rahman

Int. Cl.
CPC ...
H10K 50/11 (2023.01); H10K 50/18 (2023.01); H10K 71/70 (2023.01); H10K 101/00 (2023.01); H10K 101/40 (2023.01);
U.S. Cl.
CPC ...
H10K 50/11 (2023.02); H10K 50/18 (2023.02); H10K 71/70 (2023.02); H10K 2101/00 (2023.02); H10K 2101/40 (2023.02);
Abstract

A light-emitting device, a material screening method and a display panel. The light-emitting device of a first aspect of the present application includes a light-emitting layer including a host material and a guest material. When a carrier is injected into the light-emitting layer, there is a defect energy Et between the host material and the guest material, and an absolute value of the defect energy Et is greater than or equal to 0.03 eV. A light-emitting efficiency of the light-emitting device in a high-luminance state is improved and an operating voltage of the light-emitting device is reduced, which can ensure a display quality of the display panel in the high-luminance state and reduce an overall power consumption of the display panel.

Find Patent Forward Citations

Gao, Yu. (2026). Light-emitting device, material screening method and display panel (U.S. Patent No. 12527149). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12527149

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

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