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, 2021
Filed:
Oct. 15, 2019
Shanghai Tianma Micro-electronics Co., Ltd., Shanghai, CN;
Zeshang He, Shanghai, CN;
Shanghai Tianma Micro-Electronics Co., Ltd., Shanhai, CN;
Abstract
Disclosed are a pixel circuit, a drive method thereof and a display panel. The pixel circuit includes: a discharge module, a storage module, a comparison module, and a drive module. The drive module is configured to drive, according to a voltage outputted through the output end of the comparison module, a light-emitting module to emit light. In a light-emitting phase, the discharge module discharges the storage module; and the comparison module compares an input voltage received from the first input end with a reference voltage received from the second input end and outputs, to the control end of the drive module, a constant voltage for turning on the drive module or a voltage for turning off the drive module, so that the drive module generates a constant drive current when being turned on.