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.:
Date of Patent:
Jun. 21, 2022
Filed:
Sep. 03, 2020
Wuhan Tianma Micro-electronics Co., Ltd., Wuhan, CN;
Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch, Shanghai, CN;
Gao Yana, Shanghai, CN;
Xinzhao Liu, Shanghai, CN;
Yue Li, Shanghai, CN;
Xingyao Zhou, Shanghai, CN;
Minfu Zhang, Shanghai, CN;
SHANGHAI TIANMA AM-OLED CO., LTD., Shanghai, CN;
Abstract
Provided are a display panel, a driving method thereof and a display device. The display panel includes a substrate, multiple sub-pixels located on one side of the substrate, and at least one signal conversion circuit. Each sub-pixel includes a pixel driving circuit and a light-emitting element. The pixel driving circuit includes an initialization transistor and a driving transistor. A first electrode of the initialization transistor is electrically connected to a gate of the driving transistor. The signal conversion circuit may convert a received initialization signal to a first initialization signal or convert the initialization signal to a second initialization signal according to a received data control signal, and generate an output of the conversion to the second electrode of the initialization transistor. This can avoid an unstable gate voltage of the driving transistor caused by a leakage current, further improve the display effect.