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:
Feb. 23, 2016
Filed:
May. 20, 2013
Shanghai Tianma Micro-electronics Co., Ltd., Shanghai, CN;
Shanghai Tianma Micro-Electronics Co., Ltd., Shanghai, CN;
Abstract
A pixel circuit for an organic light emitting display includes first, second, third, fourth, fifth, and sixth MOS transistors, a first capacitor, and an organic light emitting diode. During a initialization stage, the sixth MOS transistor is turned on, and a reference voltage is transmitted to the gate electrode of the second MOS transistor. During a data-writing stage, the first MOS transistor is turned on and a data signal is transmitted to the first terminal of the first capacitor, the fourth MOS transistor is turned on and the other MOS transistors are turned off. During a light emitting stage, the fifth MOS transistor is turned on and the voltage at the gate of the second MOS transistor is based on the data signal. As a result, the third MOS transistor generates a drive current based on the data signal.