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:
Dec. 31, 2019
Filed:
Sep. 11, 2018
Lg Display Co., Ltd., Seoul, KR;
Soo-Hwan Kim, Paju-si, KR;
Jae-Hyun Park, Paju-si, KR;
LG Display Co., Ltd., Seoul, KR;
Abstract
A touch display device includes: a first substrate, a plurality of gate lines and a plurality of data lines on the first substrate, and crossing each other to define a plurality of pixel regions, a plurality of thin film transistors connected to respective ones of the plurality of gate lines and the plurality of data lines, the plurality of thin film transistors being in respective ones of the plurality of pixel regions, and a plurality of bar-shaped sensing electrodes crossing the gate lines, wherein, to determine whether a touch is performed, the touch display device is configured such that: gate signals are transmitted to the plurality of gate lines, a direct current (DC) voltage is applied to the plurality of bar-shaped sensing electrodes, and a change in ripple component of the DC voltage applied to the bar-shaped sensing electrodes is received.