公开(公告)号：US20150138133A1

公开(公告)日：2015-05-21

申请号：US14154952

申请日：2014-01-14

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Kang Joo Kim ,  Hyun Jun Kim ,  Byeong Hak Jo ,  Hyun Suk Lee ,  Tah Joon Park

IPC: G06F3/044

CPC classification number: G06F3/044 ,  G06F3/0416

Abstract: There are provided a touchscreen device and a method of driving the same. The touchscreen device includes: a driving circuit unit sequentially applying driving signals to a plurality of first electrodes in a plurality of periods of time; a sensing circuit unit acquiring sensing signals from a plurality of second electrodes intersecting with the plurality of first electrodes; a signal conversion unit converting the sensing signals into digital signals; and a buffer unit receiving the sensing signals from the sensing circuit unit and holding the received sensing signals for a predetermined period of time to transmit them to the signal conversion unit, wherein the signal conversion unit converts, during a current period of time among the plurality of periods of time, each of the sensing signals which has been generated according to a driving signal applied during an immediately previous period of time into digital signals.

Abstract translation: 提供了一种触摸屏设备及其驱动方法。 触摸屏装置包括：驱动电路单元，其在多个时间段内顺序地向多个第一电极施加驱动信号; 感测电路单元从与所述多个第一电极相交的多个第二电极获取感测信号; 信号转换单元将感测信号转换成数字信号; 以及缓冲单元，其从所述感测电路单元接收所述感测信号，并且将所接收的感测信号保持预定的时间段以将其发送到所述信号转换单元，其中所述信号转换单元在所述多个 每个感测信号根据在紧接的前一时间段期间施加的驱动信号而被生成为数字信号。

公开(公告)号：US20140184556A1

公开(公告)日：2014-07-03

申请号：US13795406

申请日：2013-03-12

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Byeong Hak JO ,  Yong II Kwon ,  Moon Suk Jeong ,  Tah Joon Park ,  Kang Joo Kim ,  Hyun Suk Lee

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0416 ,  G06F3/044

Abstract: There are provided a touch sensing apparatus and a touch sensing method. The touch sensing apparatus includes: a panel unit including a plurality of driving electrodes and a plurality of sensing electrodes; a driving circuit unit applying driving signals to the plurality of driving electrodes, respectively; a sensing circuit unit measuring a change in capacitance of node capacitors generated in intersections of the plurality of the driving electrodes and the plurality of sensing electrodes; a signal conversion unit generating a first digital signal based on the change in capacitance; and a calculation unit determining a touch according to the first digital signal, wherein the driving circuit unit and the sensing circuit unit are operated by an input voltage, and the signal conversion unit and the calculation unit are operated by a low voltage drop out (LDO) voltage generated by decreasing the input voltage.

Abstract translation: 提供了触摸感测装置和触摸感测方法。 触摸感测装置包括：面板单元，包括多个驱动电极和多个感测电极; 驱动电路单元，分别向多个驱动电极施加驱动信号; 感测电路单元，测量在所述多个驱动电极和所述多个感测电极的交叉点中产生的节点电容器的电容变化; 信号转换单元，基于电容的变化产生第一数字信号; 以及计算单元，根据所述第一数字信号确定触摸，其中所述驱动电路单元和所述感测电路单元由输入电压操作，并且所述信号转换单元和所述计算单元通过低压降（LDO）操作 ）电压通过降低输入电压而产生。

公开(公告)号：US20140139478A1

公开(公告)日：2014-05-22

申请号：US13764042

申请日：2013-02-11

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Hyun Suk Lee ,  Tah Joon Park ,  Kang Joo Kim

IPC: G06F3/044

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

Abstract: There are provided a touch sensing method and a touch sensing device. The touch sensing method includes: obtaining sensed data from a panel unit; calculating valid data by removing an offset value from the sensed data; calculating reference data by comparing the offset value with a backup offset value when the valid data is higher than a first reference value; and determining a touch based on the reference data and the valid data.

Abstract translation: 提供了触摸感测方法和触摸感测装置。 触摸感测方法包括：从面板单元获取感测数据; 通过从感测数据中去除偏移值来计算有效数据; 当所述有效数据高于第一参考值时，通过将所述偏移值与备份偏移值进行比较来计算参考数据; 以及基于所述参考数据和所述有效数据确定触摸。