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:
Jul. 10, 2018
Filed:
Aug. 27, 2014
Shanghai Tianma Am-oled Co., Ltd., Shanghai, CN;
Tianma Micro-electronics Co., Ltd., Shenzhen, CN;
Hanyu Gu, Shanghai, CN;
SHANGHAI TIANMA AM-OLED CO., LTD., Shanghai, CN;
TIANMA MICRO-ELECTRONICS CO., LTD., Shenzhen, CN;
Abstract
An organic light emitting diode pixel driving circuit and a display device are disclosed. The circuit includes an external circuit and intra-pixel circuits, which each include a signal loading module, a driving transistor, and an organic light emitting diode. The external circuit loads a data signal to the driving transistors of the intra-pixel circuits during a signal loading phase, and each of the signal loading modules generates a drive signal based on a signal at the source of the driving transistor and on the threshold voltage thereof, to store the drive signal, to load the drive signal to the gate of the driving transistor during the signal loading phase, and to control the driving transistor by the drive signal stored in the signal loading phase and the signal at the source of the driving transistor to cause the organic light emitting diode to emit light during a light emitting phase.