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. 14, 2017
Filed:
Sep. 25, 2014
Lg Display Co., Ltd., Seoul, KR;
Dongjo Park, Seoul, KR;
Sojung Jung, Goyang-si, KR;
LG DISPLAY CO., LTD., Seoul, KR;
Abstract
A touch sensing system includes a pen including at least one resonant circuit embedded therein, XY electrodes including X electrodes and Y electrodes perpendicular to the X electrodes, an antenna surrounding the XY electrodes, and a first touch driving circuit which supplies a resonant inductive signal to the XY electrodes, decides a location of the pen based on a resonance magnitude of a resonance signal received through the antenna, and decides a pen pressure of the pen based on a resonant frequency of the resonant circuit and an adjacent frequency of the resonant frequency measured while varying a frequency of the resonant inductive signal.