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:
Jul. 09, 2019
Filed:
May. 31, 2017
Shenzhen China Star Optoelectronics Technology Co., Ltd., Shenzhen, Guangdong, CN;
Yuying Cai, Guangdong, CN;
Shenzhen China Star Optoelectronics Technology Co., Ltd, Shenzhen, Guangdong, CN;
Abstract
A pixel driving circuit is disclosed, including: a driving switch, connected between a driving power source and an OLED; a first switch, connected to the gate of the driving switch for inputting a first control signal; a control circuit, connected to the source of the driving switch, for inputting a second control signal and outputting a compensation current to compensate threshold voltage drift of the driving switch; a storage unit, connected between the gate and source of the driving switch, for storing a compensation voltage of compensation current compensating the driving switch; the drain of first switch being for inputting a data signal, the storage unit being for storing a data voltage generated by the data signal and applying the compensation voltage and data voltage to the driving switch. A display panel and pixel driving method are also disclosed.