HOVERING AND TOUCH SENSING APPARATUS WITH AUXILIARY CAPACITANCE-EXCITING SIGNAL

    公开(公告)号:US20200026372A1

    公开(公告)日:2020-01-23

    申请号:US16040192

    申请日:2018-07-19

    Abstract: A hovering and touch sensing apparatus with auxiliary capacitance-exciting signal includes a plurality of touch sensing electrodes, a system circuit and a touch control circuit. When an operating object approaches or touches the touch sensing electrodes for hovering or touch sensing, there is no common circuit loop between the system circuit and the touch-sensing circuit to prevent the influence of the system circuit to the touch control circuit. The touch control circuit sends a capacitance-exciting signal to the operating object through a first specific conductor. The touch control circuit sends an auxiliary capacitance-exciting signal to a selected touch-sensing electrode and a touch-sensing circuit receives a touch sensing signal from the selected touch-sensing electrode.

    RAPID IDENTIFICATION METHOD FOR FINGERPRINT
    2.
    发明申请

    公开(公告)号:US20200065549A1

    公开(公告)日:2020-02-27

    申请号:US16668230

    申请日:2019-10-30

    Abstract: A rapid identification method for fingerprint first provides a fingerprint identification apparatus having a fingerprint sensing area and divides the fingerprint sensing area into fingerprint sensing sub-regions. In a registration stage, the method performs fingerprint sensing for the entire fingerprint sensing area to obtain fingerprint image for a whole fingerprint sensing area, fingerprint minutiae and relevant locations for the fingerprint minutiae and then pre-stores those data. In an identification stage, the method performs fingerprint sensing on a part of the fingerprint sensing sub-regions for a user to be identified and detects fingerprint minutiae and relevant locations for the fingerprint minutiae in the part of the fingerprint sensing sub-regions. The method compares the fingerprint minutiae and relevant locations detected in the identification stage with respect to the corresponding fingerprint minutiae and relevant locations in the registration stage in order to determine whether the user can be granted with access right.

    FINGERPRINT SENSING STRUCTURE WITH SMALL CURVATURE RADIUS

    公开(公告)号:US20190095683A1

    公开(公告)日:2019-03-28

    申请号:US16116876

    申请日:2018-08-29

    Abstract: A fingerprint sensing structure includes a flexible substrate divided into a fingerprint-sensing region and a non-fingerprint-sensing region. In the non-fingerprint-sensing region, the fingerprint sensing structure includes a plurality of organic insulating layers, a wiring layer having conductive wires and at least one inorganic insulating layer, where the wiring layer is sandwiched between two organic insulating layers to render the portion of the fingerprint sensing structure corresponding to non-fingerprint-sensing region to have bending with curvature radius not larger than 2 mm. In the finger sensing region, the fingerprint sensing structure includes a thin film transistor layer and a sensing electrode layer. The thin film transistor layer includes a plurality of thin film transistors, a plurality of conductive wires respectively along a first direction and a second direction. The sensing electrode layer has a plurality of sensing electrodes to sense surface features of living organism.

    OLED TOUCH DISPLAY DEVICE
    4.
    发明申请

    公开(公告)号:US20180308902A1

    公开(公告)日:2018-10-25

    申请号:US15491412

    申请日:2017-04-19

    Abstract: An OLED touch display device includes a TFT substrate and a touch electrode layer. The TFT substrate has a surface formed thereon plural switch devices, plural second touch traces and plural conductive pads. Each switch device has plural touch TFT switches. The touch electrode layer includes plural first touch traces and plural touch sense electrodes divided into plural groups each having at least one touch sense electrode, and each group is corresponding to one of the conductive pads. The touch sense electrodes are corresponding to the first touch traces one by on. Each touch sense electrode is connected to the corresponding first touch trace. Each first touch trace is connected to one touch TFT switch of the corresponding switch device, and each switch device is connected to one second touch trace and the corresponding conductive pad.

    FINGERPRINT DETECTION DEVICE
    5.
    发明申请

    公开(公告)号:US20210097249A1

    公开(公告)日:2021-04-01

    申请号:US16675849

    申请日:2019-11-06

    Abstract: The present invention provides a fingerprint detection device, including: a substrate, a switch circuit layer, a sensing electrode layer, a heat dissipating antistatic structure layer, and a protective layer. The switch circuit layer is disposed on the substrate. The sensing electrode layer is disposed on the switch circuit layer, and includes a plurality of sensing electrodes. The heat dissipating antistatic structure layer is disposed on the sensing electrode layer, and includes a conductive mesh and a plurality of shunt heat sinks. The conductive mesh is formed with a plurality of mesh openings, and configured to shunt charges. The shunt heat sinks are adjacent to the conductive mesh, and correspond to the sensing electrodes. The shunt heat sinks are electrically insulated from each other, electrically insulated from the conductive mesh, and electrically insulated from the sensing electrodes. The protective layer is disposed on the heat dissipating antistatic structure layer.

    HOVERING AND TOUCH SENSING APPARATUS
    6.
    发明申请

    公开(公告)号:US20200026373A1

    公开(公告)日:2020-01-23

    申请号:US16042856

    申请日:2018-07-23

    Abstract: A hovering and touch sensing apparatus includes a plurality of touch sensing electrodes, a system circuit and a touch control circuit. When an operating object approaches to or touches the touch sensing electrodes for hovering or touch sensing operation, there is no common circuit loop between the system circuit and the touch control circuit to prevent the influence of the system circuit to the touch-sensing circuit. Besides, the touch control circuit sends a capacitance-exciting signal to the operating object through a first specific conductor of the system circuit, thus more effectively send the capacitance-exciting signal to the operating object and enhance the preciseness for sensing the touch sensing signal.

    BIOMETRIC IDENTIFICATION APPARATUS HAVING MULTIPLE ELECTRODES

    公开(公告)号:US20190057235A1

    公开(公告)日:2019-02-21

    申请号:US15682535

    申请日:2017-08-21

    Abstract: A biometric identification apparatus having multiple electrode layers includes a sensing electrode layer having a plurality of sensing electrodes, an enhancing electrode layer having at least one enhancing electrode and a capacitance-blocking electrode layer having at least one capacitance-blocking electrode. During sensing of biometric features of living beings skin, a fingerprint sensing circuit applies a capacitance exciting signal to a selected sensing electrode, applies an enhancing signal to at least one enhancing electrode to focus and enhance sensed electric field lines, and applies a capacitance-blocking signal to at least one capacitance-blocking electrode to eliminate influence of ambient stray capacitance to the selected sensing electrode.

    CURVED-SURFACE ORGANIC LIGHT EMITTING DIODE DISPLAY DEVICE WITH FINGERPRINT IDENTIFICATION

    公开(公告)号:US20190080131A1

    公开(公告)日:2019-03-14

    申请号:US15699486

    申请日:2017-09-08

    Abstract: A curved-surface OLED display device with fingerprint identification includes a substrate, a thin film transistor layer, a pixel electrode layer, an OLED display material layer, a common electrode layer, an encapsulation layer, a curved touch detection and fingerprint detection layer and a curved protective layer. The thin film transistor layer includes plural thin film transistors, plural scan lines, and plural data lines. The pixel electrode layer includes plural pixel electrodes. The curved touch detection and fingerprint detection layer includes plural sense electrodes and plural traces for performing the touch detection operation and fingerprint identification operation. A partial area of the curved touch detection and fingerprint detection layer and the curved protective layer exhibits a curved-surface shape.

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