公开(公告)号：US20140197880A1

公开(公告)日：2014-07-17

申请号：US13739112

申请日：2013-01-11

Applicant: STMICROELECTRONICS ASIA PACIFIC PTE. LTD.

Inventor： Chee Yu NG ,  Mythreyi NAGARAJAN

IPC: H03K17/96

CPC classification number: H03K17/9622 ,  G06F3/044 ,  H03K2017/9602

Abstract: A single ITO layer design for a touchscreen panel incorporates a matrix of sensor cells formed from a single ITO layer of capacitive sensor pads, sensor bars, force lines and sense lines. Columns of multiplexed force lines are connected to rows of sensor pads to form force trees such that the force line of the end pair of sensor pads has a wide track, with the force lines of each subsequent pair of sensor pads having a reduced track width. Disposed between the columns of force trees, the matrix of sensor cells also includes columns of sensor bars connected to control circuitry via sense lines. The control circuitry applies a signal to the force trees to generate capacitance between rows of sensor pads and adjacent sensor bars. The control circuitry senses changes in the capacitance and resolves the location of a user touch in the matrix of sensor cells.

Abstract translation: 用于触摸屏面板的单个ITO层设计包括由电容式传感器焊盘，传感器棒，强制线和感测线的单个ITO层形成的传感器单元矩阵。 复合力线的列连接到传感器垫的行以形成力树，使得传感器焊盘的端对对的力线具有宽的轨迹，每个后续传感器对的力线具有减小的轨道宽度。 设置在力树柱之间，传感器单元的矩阵还包括通过感测线连接到控制电路的传感杆的列。 控制电路向力树施加信号以在传感器垫和相邻传感器条之间的行之间产生电容。 控制电路感测电容的变化，并且解决用户触摸传感器单元矩阵中的位置。

公开(公告)号：US20140191978A1

公开(公告)日：2014-07-10

申请号：US13738081

申请日：2013-01-10

Applicant: STMICROELECTRONICS ASIA PACIFIC PTE. LTD.

Inventor： Chee Yu NG ,  Praveesh CHANDRAN

IPC: 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。

公开(公告)号：US20140092054A1

公开(公告)日：2014-04-03

申请号：US13632443

申请日：2012-10-01

Applicant: STMICROELECTRONICS ASIA PACIFIC PTE LTD

Inventor： Chee Yu NG

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/03545

Abstract: A touch screen system is configured to sense a proximate or actual touch made to a touch screen panel. In response thereto, an RF transmitter is actuated to emit RF energy. A stylus receives the emitted RF energy and includes an RF energy harvesting circuit that powers an enable circuit. The enable circuit generates an enable signal. The stylus responds to the enable signal by performing a sensing operation. The information collected in the sensing operation is then communicated over an RF communications link back to the touch screen system. The sensing operation preferably is a pressure sensing operation for detecting an applied pressure at an end of the stylus resulting from contact with the touch screen panel.

Abstract translation: 触摸屏系统被配置为感测触摸屏面板的接近或实际触摸。 响应于此，RF发射器被致动以发射RF能量。 触针接收发射的RF能量，并且包括为使能电路供电的RF能量收集电路。 使能电路产生使能信号。 触控笔通过执行感测操作来响应使能信号。 然后在感测操作中收集的信息通过RF通信链路传送回到触摸屏系统。 感测操作优选地是用于检测由与触摸屏面板接触而导致的触控笔端部处施加的压力的压力感测操作。