公开(公告)号：US20150268789A1

公开(公告)日：2015-09-24

申请号：US14603672

申请日：2015-01-23

Applicant: PIXART IMAGING INC.

Inventor： CHI-CHIEH LIAO ,  TSE-CHUNG SU ,  MING-HUNG TSAI

IPC: G06F3/041 ,  G06F3/0488

CPC classification number: G06F3/0416 ,  G06F3/0488

Abstract: There is provided a method for preventing accidentally triggering edge swipe gestures adapted to a touch control system including a touch surface. The method includes the steps of: recording first information when a first gesture is detected to end at a periphery of the touch surface; recording second information when a second gesture is detected to start at the periphery of the touch surface; and determining, by a processor, whether to trigger an edge swipe gesture of the touch control system according to the first information and the second information.

Abstract translation: 提供了一种用于防止意外触发适合于包括触摸表面的触摸控制系统的边缘滑动手势的方法。 该方法包括以下步骤：当检测到第一手势在触摸表面的周围结束时记录第一信息; 当检测到第二手势在触摸表面的周围开始时记录第二信息; 以及根据所述第一信息和所述第二信息，由处理器确定是否触发所述触摸控制系统的边缘滑动手势。

公开(公告)号：US20240385714A1

公开(公告)日：2024-11-21

申请号：US18789632

申请日：2024-07-30

Applicant: PIXART IMAGING INC.

Inventor： CHI-CHIEH LIAO

IPC: G06F3/041 ,  G06F3/044 ,  H01L25/075

Abstract: A lighting touchpad is provided, which includes a substrate module, a sensing electrode layer formed on the substrate module, a driving electrode layer including a plurality of driving electrodes formed on the substrate module, a plurality of light emitting diode (LED) dies, a protective layer, and a controller. The protective layer covers the sensing electrodes, the driving electrodes, and the LED dies. The controller is electrically coupled to the sensing electrode layer, the driving electrode layer, and the LED dies through the substrate module. The substrate module includes a first substrate having two opposite surfaces. The driving electrode layer is formed on one of the two opposite surfaces of the first substrate, and the LED dies are mounted on another one of the two opposite surfaces of the first substrate and are closer to the protective layer.

公开(公告)号：US20230266191A1

公开(公告)日：2023-08-24

申请号：US18142055

申请日：2023-05-02

Applicant: PIXART IMAGING INC.

Inventor： CHE-CHIA HSU ,  YU-HAN CHEN ,  CHI-CHIEH LIAO

IPC: G01L9/12 ,  G01L9/00

CPC classification number: G01L9/12 ,  G01L9/0005

Abstract: A pressure sensing unit is provided. The pressure sensing unit includes a membrane and a pressure sensing pad group. The membrane has a first surface and a second surface. The pressure sensing pad group includes a first pressure sensing pad, a second pressure sensing pad, and a ground pad that are spaced apart from one another. The ground pad and one among the first pressure sensing pad and the second pressure sensing pad are located at the first surface of the membrane, another one among the first pressure sensing pad and the second pressure sensing pad is located at the second surface of the membrane, and an orthographic projection of the ground pad projected onto a reference plane is located between orthographic projections of the first pressure sensing pad and the second pressure sensing pad that are projected onto the reference plane.

公开(公告)号：US20230259228A1

公开(公告)日：2023-08-17

申请号：US18140890

申请日：2023-04-28

Applicant: PIXART IMAGING INC.

Inventor： CHI-CHIEH LIAO

IPC: G06F3/041 ,  H01L25/075 ,  G06F3/044

CPC classification number: G06F3/0416 ,  H01L25/0753 ,  G06F3/0445

Abstract: A lighting touchpad is provided, which includes a substrate module, a plurality of sensing electrodes, a plurality of driving electrodes, a plurality of light emitting diode (LED) chips mounted on the substrate module, and a controller. The driving electrodes and the sensing electrodes are formed on the substrate module. The driving electrodes define a distribution space that extends along a normal direction of the substrate module. The LED dies are arranged in the distribution space. The controller is electrically coupled to the sensing electrodes, the driving electrodes, and the LED dies through the substrate module. When a coupling capacity is generated between a conductor and at least one of the sensing electrodes, the controller is configured to drive at least one of the LED dies adjacent to the at least one of the sensing electrodes to emit light.

公开(公告)号：US20220342530A1

公开(公告)日：2022-10-27

申请号：US17237326

申请日：2021-04-22

Applicant: PIXART IMAGING INC.

Inventor： CHI-CHIEH LIAO ,  YI-HSIEN KO

IPC: G06F3/041 ,  G06F3/044

Abstract: A touch sensor, a touch pad, a method for identifying an inadvertent touch event and a computer device are provided. A control circuit of the touch sensor identifies whether there is the inadvertent touch event in response to the touch signals that indicates at least one touch event applied to the touch pad having the touch sensor. In the method, the touch signals are discarded if the inadvertent touch event is identified when a touch position corresponding to the touch signals is within an object detection area defined for the touch pad, or the touch positions in response to the touch signals are reported to the computer device if a multi-touch event is identified when the touch positions are within a touch detection area defined for the touch pad.

公开(公告)号：US20140210772A1

公开(公告)日：2014-07-31

申请号：US14093449

申请日：2013-11-30

Applicant: PIXART IMAGING INC.

Inventor： KUAN-YI YANG ,  CHI-CHIEH LIAO

IPC: G06F3/044

CPC classification number: G06F3/044 ,  G06F1/3262

Abstract: The present disclosure provides a capacitive touch panel, a sensing method thereof, a touch device using the same, and an input apparatus. The capacitive touch panel includes a substrate, a plurality of first scan lines, and a plurality of second scan lines. The first scan lines and the second scan lines are respectively formed on the substrate wherein the first scan lines and the second scan lines are interlaced with each other. The first scan lines and the second scan lines are capacitively coupled to each other forming a plurality of sensing regions. Moreover, any one of the second scan lines can formed a sensing region with one or more first scan lines.

Abstract translation: 本公开提供一种电容式触摸面板，其感测方法，使用其的触摸装置和输入装置。 电容式触摸面板包括基板，多条第一扫描线和多条第二扫描线。 第一扫描线和第二扫描线分别形成在基板上，其中第一扫描线和第二扫描线彼此交织。 第一扫描线和第二扫描线彼此电容耦合，形成多个感测区域。 此外，第二扫描线中的任一个可以形成具有一个或多个第一扫描线的感测区域。

公开(公告)号：US20250068286A1

公开(公告)日：2025-02-27

申请号：US18939607

申请日：2024-11-07

Applicant: PIXART IMAGING INC.

Inventor： CHE-CHIA HSU ,  CHI-CHIEH LIAO ,  YU-HAN CHEN

IPC: G06F3/044 ,  G06F3/041 ,  H01L25/075

Abstract: A capacitive touchpad is provided, which includes a substrate module, a plurality of sensing electrodes, a plurality of driving electrodes and a plurality of light-emitting diode (LED) dies. The plurality of sensing electrodes and the plurality of driving electrodes form a touch sensing region of the capacitive touchpad, and the touch sensing region is divided into a plurality of sensing units having same areas. Each of the LED dies is arranged in two adjacent ones of the plurality of sensing units, and a position of each of the LED dies corresponds to one of the plurality of driving electrodes, and the LED dies are electrically isolated from the plurality of sensing electrodes and the plurality of driving electrodes.

公开(公告)号：US20230077035A1

公开(公告)日：2023-03-09

申请号：US17987900

申请日：2022-11-16

Applicant: PixArt Imaging Inc.

Inventor： CHI-CHIEH LIAO

IPC: G06F3/041 ,  G06F3/044

Abstract: There is provided a touch force sensor including a first drive electrode, a second drive electrode and a receiving electrode. The first drive electrode is used to form a first capacitance with the receiving electrode. The second drive electrode is used to form a second capacitance with the receiving electrode. The receiving electrode shields the first drive electrode such that when a conductor approaches the receiving electrode, only the second capacitance is changed but the first capacitance is not changed. The first capacitance is changed only when the conductor gives a force upon the receiving electrode.

公开(公告)号：US20220413654A1

公开(公告)日：2022-12-29

申请号：US17897722

申请日：2022-08-29

Applicant: PIXART IMAGING INC.

Inventor： CHE-CHIA HSU ,  CHI-CHIEH LIAO ,  YU-HAN CHEN

IPC: G06F3/044 ,  G06F3/041 ,  H01L25/075

Abstract: A capacitive touchpad is provided, which includes a substrate module, a plurality of sensing electrodes, a plurality of driving electrodes and a plurality of light-emitting diode (LED) dies. The plurality of sensing electrodes and the plurality of driving electrodes form a touch sensing region of the capacitive touchpad, and the touch sensing region is divided into a plurality of sensing units having same areas. Each of the LED dies is arranged in two adjacent ones of the plurality of sensing units, and a position of each of the LED dies corresponds to one of the plurality of driving electrodes, and the LED dies are electrically isolated from the plurality of sensing electrodes and the plurality of driving electrodes.

公开(公告)号：US20220344114A1

公开(公告)日：2022-10-27

申请号：US17859072

申请日：2022-07-07

Applicant: PIXART IMAGING INC.

Inventor： CHE-CHIA HSU ,  YU-HAN CHEN ,  CHI-CHIEH LIAO

IPC: H01H13/7065 ,  H01H13/14 ,  H03K17/96 ,  G06F3/02

Abstract: A key unit and a keyboard using the same are provided. The key unit includes a circuit board, a supporting assembly, a keycap, and a floating conductive structure. The circuit board includes a capacitance sensing circuit embedded therein, and the capacitance sensing circuit includes a pair of sensor electrodes which are spaced apart from each other. The supporting assembly is disposed on the circuit board. The keycap is moveably disposed above and spaced apart from the circuit board. The supporting assembly disposed between the keycap and the circuit board allows the keycap to be moved between a non-depressed position and a depressed position with respect to the circuit board. The floating conductive structure is disposed on the supporting assembly, and an orthogonal projection of the floating conductive structure on the circuit board overlaps with the pair of sensor electrodes.