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. 08, 2018
Filed:
Dec. 29, 2016
Samsung Display Co., Ltd, Yongin-si, Gyeonggi-do, KR;
Sung-Hwan Kim, Osan-si, KR;
SAMSUNG DISPLAY, CO., LTD., , KR;
Abstract
A pixel circuit includes an OLED, an OLED driving block, a first switch, and a second switch. The OLED has an anode and a cathode connected to ELVSS. The OLED driving block connected between the anode and ELVDD controls a driving current flowing through the OLED, a first switch is turned on or off responding to a first control-signal and transfers a sensing-bias-voltage to the anode when turned on. The second switch is turned on or off responding to a second control-signal and transfers a deterioration-sensing-voltage to the anode when turned on. In a display mode, the first and second switches are turned off. In a deterioration sensing mode, the first switch is turned on and the second switch is turned off during a first time, and the first switch is turned off and the second switch is turned on during a second time.