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:
Jul. 30, 2024

Filed:

Jan. 31, 2023
Applicant:

Xiamen Tianma Display Technology Co., Ltd., Xiamen, CN;

Inventors:

Yuping Xu, Xiamen, CN;

Xiao Yang, Xiamen, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/32 (2016.01); H10K 59/121 (2023.01); H01L 27/12 (2006.01); H01L 29/786 (2006.01);
U.S. Cl.
CPC ...
G09G 3/32 (2013.01); H10K 59/1213 (2023.02); H10K 59/1216 (2023.02); G09G 2300/0426 (2013.01); G09G 2300/0465 (2013.01); G09G 2300/0819 (2013.01); G09G 2300/0847 (2013.01); G09G 2300/0861 (2013.01); H01L 27/1225 (2013.01); H01L 27/1251 (2013.01); H01L 27/1255 (2013.01); H01L 29/78648 (2013.01); H01L 29/78675 (2013.01); H01L 29/7869 (2013.01);
Abstract

Provided are a pixel driving circuit, a display panel, and a display device. Both a constant voltage signal line and a variable voltage signal line extend along a first direction. The constant voltage signal line includes an initialization voltage line, and the variable voltage signal line includes an initialization control signal line. A first electrode of an initialization transistor is electrically connected to the initialization voltage line, a second electrode of the initialization transistor is electrically connected to a first electrode or a second electrode of a drive transistor, and a gate of the initialization transistor is electrically connected to the initialization control signal line and used for turning on the initialization transistor according to a control signal on the initialization control signal line so as to initialize the first electrode or the second electrode of the drive transistor.


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