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. 04, 2017
Filed:
Feb. 06, 2015
Shenzhen China Star Optoelectronics Technology Co., Ltd., Shenzhen, Guangdong, CN;
Shenzhen China Star Optoelectronics Technology Co., Ltd, Shenzhen, Guangdong, CN;
Abstract
An AMOLED driving device includes a control module, a voltage module, and a display panel. The control module includes a timing control unit, a data output unit, a black screen output unit, and a data output selection unit. The voltage module includes a Gamma constant voltage unit and an OLED driving voltage unit. The timing control unit generates a frame control signal (Frame_ctr) that controls the data output selection unit () and the OLED driving voltage unit so that a normal image is output in one frame, while a black screen is output in another frame. During the period of outputting of the black screen, a preset positive potential is switched to connect to a power supply negative potential so as to prevent the occurrence of a display defect of residual image and effectively suppress threshold voltage shifting of a second transistor.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile