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    CAPACITIVE TOUCH SCREEN INCLUDING A FIRST SENSOR PATTERN FOR MUTUAL SENSING AND A SECOND SENSOR PATTERN FOR SELF SENSING
    11.
    发明申请
    CAPACITIVE TOUCH SCREEN INCLUDING A FIRST SENSOR PATTERN FOR MUTUAL SENSING AND A SECOND SENSOR PATTERN FOR SELF SENSING 有权
    电触摸屏幕，包括用于相互感测的第一传感器图案和用于自感觉的第二传感器图案

    公开(公告)号：US20150317008A1

    公开(公告)日：2015-11-05

    申请号：US14269295

    申请日：2014-05-05

    Applicant: STMicroelectronics Asia Pacific Pte Ltd

    Inventor： Praveesh Chandran ,  Chee Yu Ng

    IPC: G06F3/044 ,  G06F3/041 ,  G06F1/16

    CPC classification number: G06F3/044 ,  G06F3/0416 ,  G06F2203/04101

    Abstract: A capacitive touch panel includes a first sensor pattern and second sensor pattern. The first sensor pattern supports mutual-capacitance detection and the second sensor pattern supports self-capacitance detection. The first sensor pattern includes row conductors and column conductors which intersect each other at mutual-capacitance sensing locations. The second sensor pattern includes island conductors. The island conductors are grouped in clusters of conductors, each cluster providing a self-capacitance sensing location. Control circuitry coupled to the first and second sensor patterns functions to make touch/hover position detections by sensing changes in capacitance at the mutual-capacitance and self-capacitance nodes. The row and column conductors include openings, and the island conductors are positioned in vertical alignment with corresponding openings in the conductors.

    Abstract translation: 电容式触摸面板包括第一传感器图案和第二传感器图案。 第一传感器模式支持互电容检测，第二传感器模式支持自电容检测。 第一传感器图案包括在互电容感测位置彼此相交的行导体和列导体。 第二传感器图案包括岛状导体。 岛导体被分组成导体簇，每个簇提供自电容感测位置。 耦合到第一和第二传感器图案的控制电路用于通过感测互电容和自电容节点处的电容的变化来进行触摸/悬停位置检测。 行和列导体包括开口，并且岛导体定位成与导体中的对应开口垂直对准。

    CROSS-SHAPED TOUCHSCREEN PATTERN
    12.
    发明申请
    CROSS-SHAPED TOUCHSCREEN PATTERN 有权
    十字形触摸图案

    公开(公告)号：US20150268757A1

    公开(公告)日：2015-09-24

    申请号：US14218079

    申请日：2014-03-18

    Applicant: STMICROELECTRONICS ASIA PACIFIC PTE LTD

    Inventor： Praveesh Chandran

    IPC: G06F3/044 ,  G06F1/16

    CPC classification number: G06F3/044 ,  G06F2203/04111

    Abstract: A capacitive sensing structure comprises a plurality of first sensors electrically coupled to each other in a first direction, each first sensor comprising: a first arm extending along the first direction, and a second arm extending along a second direction perpendicular to the first direction and bisecting the first arm to form open regions at least partially defined by the first and second arm; a plurality of second sensors electrically coupled to each other in the second direction, each second sensor comprising: a first arm extending along the second direction, and a second arm extending along the first direction and bisecting the first arm to form open regions at least partially defined by the first and second arm; and a plurality of single electrically conductive and electrically floating structures, each disposed within open regions of adjacent first and second sensors.

    Abstract translation: 电容感测结构包括在第一方向上彼此电耦合的多个第一传感器，每个第一传感器包括：沿第一方向延伸的第一臂和沿垂直于第一方向的第二方向延伸的第二臂， 所述第一臂形成至少部分地由所述第一臂和所述第二臂限定的开放区域; 多个第二传感器在第二方向上彼此电耦合，每个第二传感器包括：沿着第二方向延伸的第一臂，以及沿第一方向延伸的第二臂，将第一臂平分，以至少部分地形成开放区域 由第一和第二臂限定; 以及多个单个导电和电浮置结构，每个结构设置在相邻的第一和第二传感器的开放区域内。

    Borderless touch panel design
    13.
    发明授权
    Borderless touch panel design 有权
    无边界触摸屏设计

    公开(公告)号：US09128560B2

    公开(公告)日：2015-09-08

    申请号：US13738081

    申请日：2013-01-10

    Applicant: STMicroelectronics Asia Pacific Pte. Ltd.

    Inventor： Chee Yu Ng ,  Praveesh Chandran

    IPC: G06F3/044 ,  G06F3/041

    CPC classification number: G06F3/0416 ,  G06F3/044

    Abstract: A borderless touchscreen panel includes a first conductive layer having rows of capacitive sensors and receiving traces, and a second conductive layer having columns of sensor bars and transmitting traces. The capacitive sensors are coupled to control circuitry via the receiving traces, and the sensor bars are coupled to the control circuitry via the transmitting traces. Peripheral sensor bars are disposed over the receiving traces such that the receiving traces can be routed within an active portion of the borderless touchscreen panel without obstructing its touch-detection capabilities. Furthermore, the receiving traces are comprised of a transparent material such as indium tin oxide, and therefore do not obstruct the display capabilities of the active portion. Thus, there is no need for an inactive border region since the receiving traces are disposed within the active portion without obstructing either the touch-detection or display capabilities of the borderless touchscreen panel.

    Abstract translation: 无边界触摸屏面板包括具有行的电容传感器和接收迹线的第一导电层，以及具有传感器条和传输迹线列的第二导电层。 电容传感器经由接收迹线耦合到控制电路，并且传感器条经由发射迹线耦合到控制电路。 外围传感器杆设置在接收轨迹上方，使得接收轨迹可以在无边界触摸屏面板的有效部分内布线，而不会妨碍其触摸检测能力。 此外，接收迹线由诸如氧化铟锡的透明材料构成，因此不会妨碍有源部分的显示能力。 因此，由于接收迹线设置在有源部分内而不会妨碍无边界触摸屏面板的触摸检测或显示能力，因此不需要非活动边框区域。

    Common mode noise reduction in capacitive touch sensing
    14.
    发明授权
    Common mode noise reduction in capacitive touch sensing 有权

    公开(公告)号：US10599276B2

    公开(公告)日：2020-03-24

    申请号：US16162925

    申请日：2018-10-17

    Applicant: STMICROELECTRONICS ASIA PACIFIC PTE LTD

    Inventor： Praveesh Chandran ,  Lokesh Kumar Korapati ,  Mythreyi Nagarajan

    IPC: G06F3/044 ,  G06F3/041

    Abstract: The present disclosure is directed to a system and method to remove common mode noise projected onto a touch sensor array from a display. The system is configured to activate two rows of electrodes at the same time, while coupling remaining rows of electrodes to ground. A first one of the two activated rows is used for detection of a touch and a second one of the two activated rows is used to detect common mode noise from the display. The common mode noise detected by the second row is removed from signals received from a plurality of columns of the touch sensor array.

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