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:
Mar. 01, 2022
Filed:
Jul. 30, 2020
Shanghai Tianma Am-oled Co., Ltd., Shanghai, CN;
Yingteng Zhai, Shanghai, CN;
Chenhang Sheng, Shanghai, CN;
Shanghai Tianma AM-OLED Co., Ltd., Shanghai, CN;
Abstract
A pixel driving circuit and a driving method thereof, a display panel and a display device are provided. A second light emitting control device controls, in a case that a first light emitting control device controls a floating signal to be transmitted to a gate of a drive transistor for a first predetermined time period, a driving current to be transmitted to a light emitting element, and the light emitting element can emit light. In this way, the light emitting element can be driven to emit light after a fluctuation period of a voltage of the gate of the drive transistor during which the floating signal is initially inputted to the gate of the drive transistor is passed, improving the stability of the pixel driving circuit in driving the light emitting element.