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 11638384 B1

Date of Patent:

Apr. 25, 2023

Filed:

Mar. 31, 2021

Display panel and display device having first transistor including first drain electrode and first source electrode made of different materials

Applicant:

Tianma Micro-electronics Co., Ltd., Shenzhen, CN;

Inventors:

Haochi Yu, Shanghai, CN;

Feng Lu, Shanghai, CN;

Yang Zeng, Shanghai, CN;

Lu Lian, Shanghai, CN;

Assignee:

Tianma Micro-Electronics Co., Ltd., Shenzhen, CN;

Attorney:

Christensen O'Connor Johnson Kindness PLLC

Primary Examiner:

Phuc T Dang

Int. Cl.

CPC ...

H01L 29/08 (2006.01); H01L 29/786 (2006.01); H01L 27/12 (2006.01);

U.S. Cl.

CPC ...

H10K 59/123 (2023.02); H10K 59/124 (2023.02); H10K 59/126 (2023.02); H10K 59/1213 (2023.02); H10K 59/1216 (2023.02); H10K 59/131 (2023.02); H10K 59/65 (2023.02); H10K 71/00 (2023.02); H01L 27/124 (2013.01); H01L 27/1225 (2013.01); H01L 27/1251 (2013.01); H01L 27/1255 (2013.01); H01L 29/7869 (2013.01); H01L 29/78633 (2013.01); H01L 29/78651 (2013.01); H10K 59/1201 (2023.02);

Abstract

A display panel and a display device are provided. The display panel includes a substrate, a driving unit including a first transistor, and at least one light-emitting element. The first transistor includes a first source electrode and a first drain electrode that are located at a side of the at least one light-emitting element close to the substrate. Each of the at least one light-emitting element includes a first electrode, a light-emitting layer, and a second electrode that are sequentially stacked. The first electrode is connected to the first drain electrode through a first via, and the first drain electrode is located at a side of the first source electrode close to the substrate. A material of the first drain electrode is different from a material of the first source electrode.

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