公开(公告)号：US20160370948A1

公开(公告)日：2016-12-22

申请号：US15189528

申请日：2016-06-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kyeong-gon Lee ,  Bum-soo KIM ,  Jun-chul PARK ,  Yoon-kyung CHOI ,  San-ho BYUN ,  Cha-dong KIM ,  Jin-chul LEE

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0418 ,  G06F3/044 ,  G06F2203/04101

Abstract: A touch screen controller is provided. The touch screen controller includes: an offset cancellation circuit configured to cancel offset capacitance of a touch screen panel including a first channel and a second channel crossing the first channel, the offset cancellation circuit connected to the touch screen panel through a sensing node; a charge amplifier configured to generate a sensing voltage from a sensing signal output from the touch screen panel, the charge amplifier including an amplifier having a first input terminal connected to the sensing node and a second input terminal to which an input voltage is applied; and a channel driver configured to provide a driving voltage, which is equal to or greater than the input voltage, to the second channel in a self capacitance sensing mode for the first channel.

Abstract translation: 提供触摸屏控制器。 触摸屏控制器包括：偏移消除电路，被配置为消除包括与第一通道交叉的第一通道和第二通道的触摸屏面板的偏移电容，偏移消除电路通过感测节点连接到触摸屏面板; 电荷放大器，被配置为根据从触摸屏面板输出的感测信号产生感测电压，所述电荷放大器包括具有连接到感测节点的第一输入端子和施加输入电压的第二输入端子的放大器; 以及通道驱动器，被配置为在第一通道的自电容感测模式中向第二通道提供等于或大于输入电压的驱动电压。

公开(公告)号：US20170115817A1

公开(公告)日：2017-04-27

申请号：US15399160

申请日：2017-01-05

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jin-bong KIM ,  Yoon-kyung CHOI ,  Jong-oh LEE ,  Bum-soo KIM ,  Steve J. KIM

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0416 ,  G06F3/041 ,  G06F3/044 ,  G06F2203/04101 ,  G06F2203/04104 ,  G06F2203/04108

Abstract: A touch sensing device includes a touch screen panel including a touch sensor configured to generate a first electrical change corresponding to a touch and a touch controller configured to detect touch position data with respect to an area on the touch screen panel associated with the touch, based on the first electrical change of the touch sensor.