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:
Oct. 26, 2021
Filed:
Jan. 03, 2019
Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Hubei, CN;
Caiqin Chen, Hubei, CN;
Abstract
An organic light emitting diode (OLED) pixel driving circuit and a display panel are disclosed. The OLED pixel driving circuit is a 7T1C type pixel driving circuit consisting of a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, a sixth transistor, a seventh transistor, a capacitor, and an organic light emitting diode. Each of the first, second, third, fourth, fifth, sixth, and seventh transistors has a control end, a first end, and a second end, wherein the control end and the second end of the seventh transistor are coupled, the control end and the second end of the fourth transistor are coupled, and the second end of the fourth transistor and the second end of the seventh transistor are not connected to each other.