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. 30, 2021
Filed:
May. 12, 2020
Lg Display Co., Ltd., Seoul, KR;
Jung Chul Kim, Paju-si, KR;
LG DISPLAY CO., LTD., Seoul, KR;
Abstract
An electroluminescent display panel including a pixel driving circuit that includes a light-emitting element, a first capacitor connected to a first node and a second node, a second capacitor connected to the second node and a high potential voltage line, a driving transistor supplying electric current to the light-emitting element, a first switching circuit controlled by a first scan signal and turned on during the sampling period to compensate for a time-varying characteristic of the driving transistor, a second switching circuit controlled by a second scan signal and turned on during the programming period to apply a data voltage to the second node, and a light emission control circuit controlled by an emission signal and turned on during the initialization period and the emission period to apply the high potential voltage to the driving transistor.