公开(公告)号：US09207823B2

公开(公告)日：2015-12-08

申请号：US14139992

申请日：2013-12-24

Applicant: Samsung Electronics Co., Ltd

Inventor： Min Gun Baek ,  Ki-duk Kim

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/0416 ,  G06F2203/04104

Abstract: The inventive concept discloses a capacitive touch system and a coordinate extraction method thereof. The coordinate extraction method has operations of phases 1 and 2.First and second axis coordinates of a first frame are obtained by providing driving signals in a first direction selected in the first phase and performing a sensing in a second direction different from the first direction. First and second axis coordinates of a second frame are obtained by providing driving signals in a second direction selected in the second phase and performing a sensing in the first direction. First and second axis coordinates having a relatively high coordinate precision among the first and second axis coordinates may be finally determined as a touch coordinate. According to the inventive concept, since a touch sensing precision is improved to be strong against a noise, a touch coordinate is more precisely obtained.

Abstract translation: 本发明的概念公开了电容式触摸系统及其坐标提取方法。 坐标提取方法具有阶段1和2的操作。通过在第一阶段中选择的第一方向提供驱动信号并且沿与第一方向不同的第二方向执行感测来获得第一帧的第一和第二轴坐标。 通过在第二相中选择的第二方向提供驱动信号并且在第一方向上执行感测来获得第二帧的第一和第二轴坐标。 可以最终确定在第一和第二轴坐标之间具有较高坐标精度的第一和第二轴坐标作为触摸坐标。 根据本发明的概念，由于触摸感测精度提高到抵抗噪声的强度，因此更精确地获得触摸坐标。

公开(公告)号：US10528200B2

公开(公告)日：2020-01-07

申请号：US15758147

申请日：2016-09-05

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Chang-byung Park ,  Sung-soo Park ,  Ki-duk Kim ,  Gyu-hyeong Cho ,  Yeun-hee Huh

IPC: G06F3/044 ,  G06F3/0488

Abstract: A coordinate measurement device and method for hover sensing are disclosed. According to the present invention, the coordinate measurement device comprises: a channel electrode unit including a plurality of electrodes, wherein a capacitance of at least one of the plurality of electrodes variably changes by the approach of a contact object; a driving unit for applying a positive voltage to a first electrode group among the plurality of electrodes and applying a negative voltage to a second electrode group among the plurality of electrodes; a reception unit for receiving reception signals from a plurality of electrodes in the first electrode group and a plurality of electrodes in the second electrode group, respectively; and a processor for determining the position of the contact object on the basis of the received signals. Therefore, the coordinate measurement device can detect an accurate position of the contact object approaching the coordinate measurement device, through a conventional sensing element and circuit process.

公开(公告)号：US20150138145A1

公开(公告)日：2015-05-21

申请号：US14532153

申请日：2014-11-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hee-chang Hwang ,  Yoon-kyung Choi ,  Ki-duk Kim ,  Jong-seon Kim ,  Jong-kang Park

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0418 ,  G06F3/0416 ,  G06F3/044

Abstract: A touch screen controller, a touch screen system, and a display apparatus including the same includes a touch data generator that supplies a first transmission signal to a first sensing line, supplies a second transmission signal to a second sensing line adjacent to the first sensing line, receives differential touch signals from the first and second sensing lines, and performs an arithmetic operation on the differential touch signals to generate a single-ended touch signal, and a control logic that calculates touch coordinates by using the single-ended touch signal from the touch data generator. At least one of phases and frequencies of the first and second transmission signals have different values.

Abstract translation: 触摸屏控制器，触摸屏系统和包括该触摸屏系统的显示装置包括将第一传输信号提供给第一传感线的触摸数据发生器，将第二传输信号提供给与第一传感线相邻的第二传感线 接收来自第一和第二感测线的差分触摸信号，并对差分触摸信号执行算术运算以产生单端触摸信号;以及控制逻辑，其通过使用来自该触摸信号的单端触摸信号来计算触摸坐标 触摸数据发生器。 第一和第二传输信号的相位和频率中的至少一个具有不同的值。