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:
Oct. 21, 2025

Filed:

Apr. 01, 2021
Applicant:

Boe Technology Group Co., Ltd., Beijing, CN;

Inventors:

Long Han, Beijing, CN;

Yu Feng, Beijing, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/3233 (2016.01); G09G 3/3258 (2016.01); G09G 3/3266 (2016.01); H10K 59/131 (2023.01);
U.S. Cl.
CPC ...
G09G 3/3233 (2013.01); G09G 3/3258 (2013.01); G09G 3/3266 (2013.01); G09G 2300/0819 (2013.01); G09G 2300/0842 (2013.01); H10K 59/131 (2023.02);
Abstract

The source, drain and gate of the drive transistor of the pixel drive circuit are respectively connected to the first node, the second node and the third node. The storage capacitor is connected to the third node. The first control unit is used for enabling a path between the second node and the fourth node in response to the first control signal. The second control unit is used for outputting the first power supply voltage to the first node in response to the light-emitting signal. The threshold compensation transistor is used for enabling a path between the second node and the third node in response to the second control signal. The material of the active region is a metal oxide semiconductor.


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