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:
May. 03, 2022
Filed:
May. 23, 2019
Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Shenzhen, CN;
Abstract
An organic light emitting diode (OLED) display panel and a driving method thereof are provided. The OLED display panel includes a plurality of pixel unit circuits and an external compensation unit connected to all of the pixel unit circuits. The external compensation unit performs external compensation on each of the pixel unit circuits, obtains an initial threshold voltage of a corresponding driving thin film transistor (TFT) of each of the pixel unit circuits, adds the initial threshold voltage to a predetermined initial potential, and then inputs a sum of the initial threshold voltage and the predetermined initial potential to each of the pixel unit circuits Each of the pixel unit circuits performs internal compensation based on the sum of the initial threshold voltage and the predetermined initial potential.