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.

Date of Patent:
Aug. 07, 2018

Filed:

Dec. 28, 2016
Applicant:

Lg Display Co., Ltd., Seoul, KR;

Inventors:

MyungHo Shin, Paju-si, KR;

SungUk Byun, Daegu, KR;

YongWoo Choi, Goyang-si, KR;

MinWoo Hwang, Gumi-si, KR;

KiYong Kim, Goyang-si, KR;

Youngho Kwon, Daegu, KR;

Kyungjin Jang, Seoul, KR;

JaeKyu Park, Gimpo-si, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/041 (2006.01); G09G 3/20 (2006.01); G06F 3/044 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0416 (2013.01); G06F 3/044 (2013.01); G06F 3/0412 (2013.01); G09G 3/2092 (2013.01); G06F 2203/04107 (2013.01); G09G 2330/06 (2013.01);
Abstract

A touch sensing method, a touch sensing circuit, and a touch display device perform multifrequency touch driving by varying the frequencies of touch driving signals when sensing a touch or a touched position by outputting pulse-type touch driving by which one or more touch electrodes among a number of touch electrodes disposed on a display panel are driven sequentially. Undesired parasitic capacitance that would otherwise be caused by touch driving signals is prevented from occurring, and EMI influence is reduced.


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