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:
Oct. 20, 2015
Filed:
Mar. 09, 2012
Chul-kyu Kang, Yongin, KR;
Seong-il Park, Yongin, KR;
Yong-sung Park, Yongin, KR;
Samsung Display Co., Ltd., Samsung-ro, Giheung-Gu, Yongin-si, Gyeonggi-Do, KR;
Abstract
A pixel circuit includes an OLED having a cathode coupled to a power source voltage, a first transistor having a second electrode coupled to an anode of the OLED, and a gate electrode coupled to a gate control-line, a second transistor having a second electrode coupled to a first electrode of the first transistor, a third transistor having a first electrode coupled to another power source voltage, a second electrode coupled to a first electrode of the second transistor, and a gate electrode coupled to a gate control-line, a fourth transistor having a first electrode coupled to a gate electrode of the second transistor, a second electrode coupled to the anode of the OLED, and a gate electrode coupled to a scan-line, and a capacitor coupled between the gate electrode of the second transistor and the second electrode of the third transistor.