Touch display device and touch sensing circuit

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United States of America Patent

PATENT NO 11907476
APP PUB NO 20230214057A1
SERIAL NO

18119365

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Embodiments of the present disclosure relate to a touch display device and a touch sensing circuit that apply a load-free driving signal having a phase difference or amplitude difference from the touch driving signal to a touch display panel. According to embodiments of the present disclosure, electromagnetic noise immunity may be improved and touch accuracy may be increased. The touch sensing circuit comprises: a touch driving circuit configured to output a pulse type touch driving signal to at least one of a plurality of touch electrodes disposed on a touch display panel; and a load-free driving signal output circuit configured to output at least one load-free driving signal having a frequency equal to a frequency of the touch driving signal and having a phase difference or amplitude difference from the touch driving signal.

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Patent Owner(s)

Patent OwnerAddress
LG DISPLAY CO LTD128 YEOUI-DAERO YEONGDEUNGPO-GU SEOUL 07336

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Byun, SungUk Paju-si, KR 6 54
Jeong, Woorim Paju-si, KR 2 0
Lee, Jeongseop Paju-si, KR 11 162
Yang, Hankyu Paju-si, KR 2 0

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