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:
Jan. 25, 2022
Filed:
May. 26, 2020
Applicant:
Lg Display Co., Ltd., Seoul, KR;
Inventors:
Seongkyu Kang, Paju-si, KR;
SungChul Kim, Paju-si, KR;
HoonBae Kim, Seoul, KR;
SunYeop Kim, Seoul, KR;
Assignee:
LG Display Co., Ltd., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/041 (2006.01); G09G 3/36 (2006.01); G09G 3/3275 (2016.01); G06F 3/044 (2006.01); G09G 3/20 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0412 (2013.01); G06F 3/044 (2013.01); G09G 3/2007 (2013.01); G09G 3/3275 (2013.01); G09G 3/3685 (2013.01); G09G 2320/0276 (2013.01);
Abstract
Provided are a touchscreen display device, a touch driving circuit, and a driving method. Image display and touch sensing are simultaneously performed and the interference between display driving and touch driving are minimized or removed, so that excellent image display and touch sensing performance is obtained. Poor touch sensitivity occurring in a specific area (e.g. an edge area) is reduced by using differential sensing sequence control, internal correction resistors of the touch driving circuit, and signal characteristics control.