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.

Date of Patent:
Aug. 03, 2021

Filed:

Dec. 11, 2019
Applicant:

Lg Display Co., Ltd., Seoul, KR;

Inventors:

Sunyoung Choi, Paju-si, KR;

Kummi Oh, Paju-si, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/786 (2006.01); H01L 25/075 (2006.01); H01L 27/12 (2006.01);
U.S. Cl.
CPC ...
H01L 29/78696 (2013.01); H01L 25/0753 (2013.01); H01L 27/1214 (2013.01); H01L 29/78648 (2013.01);
Abstract

In a display panel according to the disclosure, the display panel includes a substrate, an active layer having a source region, a drain region and a channel region on the substrate, a source electrode contacted with the source region, a drain electrode contacted with the drain region, an upper gate electrode above the active layer, and a lower gate electrode below the active layer. An edge of the lower gate electrode closest to the drain region overlaps with the channel region, and the source region and the drain region do not overlap with the upper gate electrode. The driving element constituting the display panel can generate a high driving current without deteriorating the characteristics thereof, thereby stably maintaining the luminance of the display panel.


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