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:
Feb. 27, 2018
Filed:
Dec. 07, 2015
Lg Display Co., Ltd., Seoul, KR;
Seiichi Mizukoshi, Paju-si, KR;
LG DISPLAY CO., LTD., Seoul, KR;
Abstract
An Organic Light Emitting Diode (OLED) display device can include a display panel, a pixel circuit, and a data line and a power line connected in parallel and to the pixel circuit; a data driver for supplying a data voltage to the data line in display and sensing modes; and a sensing unit for supplying a high-potential voltage to the power line to drive the pixel circuit, cutting off supplying the high-potential voltage to the power line in a sensing duration of the sensing mode, sensing a voltage corresponding to a pixel current of the pixel circuit using the power line. A capacitor can be connected in parallel with the power line is charged according to the pixel current flowing through the power line, and the sensing unit senses the sensing voltage on the power line by sampling and holding the charged voltage in the capacitor.