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:
Mar. 08, 2016
Filed:
Mar. 29, 2013
Boe Technology Group Co., Ltd., Beijing, CN;
Hefei Boe Optoelectronics Technology Co., Ltd., Hefei, Anhui, CN;
Qingchao Meng, Beijing, CN;
Xiaoyan Liu, Beijing, CN;
Wenjie Wang, Beijing, CN;
Xiaojun Su, Beijing, CN;
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Hefei, Anhui, CN;
Abstract
There are provided a pixel unit driving circuit and driving method, pixel unit and display apparatus. The pixel unit driving circuit is used for driving a light-emitting device to emit light, and comprises a first thin film transistor (T), a second thin film transistor (T), a third thin film transistor (T) and a storage capacitor (Cs). A gate of the first thin film transistor (T) is connected with a control line (Gate), a first electrode thereof is connected with a data line (Data), and a second electrode thereof is connected with a first node (A). One gate of the second thin film transistor (T) is connected with the control line (Gate) and the other gate is connected with a second scan line (Scan), a first electrode thereof is connected with the storage capacitor (Cs), and a second electrode thereof is connected with a second node (B). One gate of the third thin film transistor (T) is connected with the first node (A) and the other gate is connected with the second scan line (Scan), a first electrode thereof is connected with a power supply (Vdd), and a second electrode thereof is connected with the second node (B). One terminal of the storage capacitor is connected with the first node (A), and the other terminal is connected with the first electrode of the second thin film transistor (T). One terminal of the light-emitting device is connected with the second node (B), and the other terminal thereof is grounded. The pixel unit driving circuit can reduce an influence on a driving voltage caused by variations in threshold voltage.