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:
Jun. 08, 2021
Filed:
Feb. 26, 2020
Lg Display Co., Ltd., Seoul, KR;
Suyun Ju, Gangwon-do, KR;
HyungUk Jang, Paju-si, KR;
SangHyuck Bae, Paju-si, KR;
DoYoung Jung, Seoul, KR;
SeungSeok Oh, Seoul, KR;
Sungsu Han, Goyang-si, KR;
LG Display Co., Ltd., Seoul, KR;
Abstract
A touch display device may include: a panel including a plurality of touch electrodes, and a touch circuit configured to: transfer a panel driving signal to the panel, and receive a pen information signal, output from a pen in response to the panel driving signal, through the panel, each of the panel driving signal and the pen information signal including a plurality of pulses, the pen information signal including one or more state sections among: an in-phase state section including pulses in phase with the pulses of the panel driving signal, an antiphase state section including pulses having a different phase from the pulses of the panel driving signal, and a passive state section distinguished from the in-phase state section and the antiphase state section.