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. 31, 2016
Filed:
Dec. 06, 2012
Boe Technology Group Co., Ltd., Beijing, CN;
Chengdu Boe Optoelectronics Technology Co., Ltd., Chengdu, CN;
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Sichuan, CN;
Abstract
A pixel unit driving circuit and a method thereof, a pixel unit and a display apparatus can improve uniformity in the brightness of an OLED panel. The pixel unit driving circuit comprises a driving thin film transistor (DTFT), a matching thin film transistor (MTFT), a signal-erasing thin film transistor (ETFT), a charging control unit (), a driving control unit () and a storage capacitor (Cs). A gate of the driving thin film transistor (DTFT) is connected with a first end of the storage capacitor (Cs) and is connected with a driving power supply (VDD) via the charging control unit (), a source thereof is connected with a driving power supply (VSS), and a drain thereof is connected with the OLED. A gate and drain of the signal-erasing thin film transistor (ETFT) is connected with the second end of the storage capacitor (Cs), a source of the signal-erasing thin film transistor (ETFT) is connected with the gate and the drain of the matching thin film transistor, and is connected with the data line via the charging control unit (). A source of the matching thin film transistor (MTFT) is connected with a second end of the storage capacitor (Cs).