公开(公告)号：US20170212636A1

公开(公告)日：2017-07-27

申请号：US15405343

申请日：2017-01-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： JIN-BONG KIM ,  YOON-KYUNG CHOI ,  MIN-SUNG KIM ,  SAN-HO BYUN ,  HWI-TAEK CHUNG ,  EUNG-MAN KIM ,  CHA-DONG KIM

IPC: G06F3/041 ,  G06F3/044

Abstract: Provided are a touch processor for performing active protection, a touch display driver integrated circuit (DDI) chip including the touch processor, and a method of operating the touch processor. The touch processor for driving a touch panel including a sensing cell includes a driving circuit configured to provide a driving signal to the touch panel, and a capacitance controller. The capacitance controller is configured to generate a switch control signal for controlling a switch connected to a sensing unit included in the sensing cell, and a compensation signal having a different waveform than the driving signal, so as to reduce a value of an ambient capacitance component of the sensing cell.

公开(公告)号：US20170228084A1

公开(公告)日：2017-08-10

申请号：US15412220

申请日：2017-01-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： JIN-BONG KIM ,  YOON-KYUNG CHOI ,  MIN-SUNG KIM ,  EUNG-MAN KIM ,  HWI-TAEK CHUNG ,  DO-KYUNG KIM ,  YOUNG-JOO LEE

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0416 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04107

Abstract: A touch sensing apparatus includes a plurality of touch sensors provided in a touch panel and a switching unit for transmitting sensing signals per column or row of the touch sensors through a single line to a touch controller.