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:
Dec. 30, 2025

Filed:

Mar. 24, 2022
Applicants:

Hefei Boe Joint Technology Co., Ltd., Anhui, CN;

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

Inventors:

Zhidong Yuan, Beijing, CN;

Yongqian Li, Beijing, CN;

Can Yuan, Beijing, CN;

Liu Wu, Beijing, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/3233 (2016.01); G11C 19/28 (2006.01);
U.S. Cl.
CPC ...
G09G 3/3233 (2013.01); G11C 19/287 (2013.01); G09G 2300/0842 (2013.01); G09G 2310/0286 (2013.01); G09G 2310/08 (2013.01);
Abstract

A display panel includes pixel driving circuits distributed in an array and forming pixel driving circuit groups, each pixel driving circuit group includes pixel driving circuit rows with each including pixel driving circuits, each of which includes a driving circuit connected to a first, second and third nodes, to input a driving current to the third node through the second node in response to a signal of the first node; a first switching unit with a first end connected to a first power supply terminal and second end connected to the second node, to connect the first power supply terminal and the second node in response to a pulse width modulation signal; in a same pixel driving circuit group, a second end of any first switching unit is connected to a second end of at least one first switching unit in each of the other pixel driving circuit rows.


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