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:
Apr. 19, 2022
Filed:
May. 27, 2019
Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Shenzhen, CN;
Abstract
The present disclosure provides an organic light-emitting diode (OLED) display panel and a driving method thereof. The OLED display panel includes a plurality of pixel circuits and an external compensation unit connected to the plurality of pixel circuits. The external compensation unit externally compensates the pixel circuits, obtains initial threshold voltages of driving thin-film transistors (TFTs) of each pixel circuits, obtains a sum data signal by summing up each of the initial threshold voltages and an input signal corresponding to each pixel circuits, and transmits the sum data signal to each pixel circuits. The external compensation compensates non-uniformity initial threshold voltages of each driving TFTs caused from manufacture of OLED display panel and compensates the permanent drift of the actual threshold voltage caused from external stress. The internal compensation instantly compensates relatively slight drift of actual threshold voltage occurring during the emitting of the OLED display panel.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile