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. 12, 2019
Filed:
Jul. 21, 2016
Lg Display Co., Ltd., Seoul, KR;
Doyoung Jung, Seoul, KR;
Hyunguk Jang, Gyeonggi-do, KR;
Sungchul Kim, Gyeonggi-do, KR;
Sanghyuck Bae, Gyeonggi-do, KR;
Sungsu Han, Gyeonggi-do, KR;
Suyun Ju, Gangwon-do, KR;
LG Display Co., Ltd., Seoul, KR;
Abstract
A touch sensing system comprises a touchscreen with a plurality of touch electrodes, to which a touchscreen driving signal is applied, and a stylus pen that generates a pen driving signal based on the touchscreen driving signal and sends the same to the touchscreen. The stylus pen comprises: an amplifier that amplifies the touchscreen driving signal to generate an amplified signal; a comparator that compares the amplified signal with a preset reference voltage to generate a comparator output signal; and a signal processor that measures the pulse width of the comparator output signal, adjusts an amount of delay based on a measurement, and determines an output timing of the pen driving signal based on an adjusted amount of delay to synchronize the pen driving signal with the touchscreen driving signal.