Abstract:
A mutual capacitance integral sensing apparatus for touch and force sensing includes a first electrode layer, a second electrode layer, a protection layer, a resilient dielectric layer and a capacitance sensing module. The first electrode layer includes a plurality of first electrodes extended along a first direction; the second electrode layer includes a plurality of second electrodes extended along a second direction; and the third electrode layer includes at least one third electrode extended along the first direction; where the first direction is substantially vertical to the second direction. In touch sensing operation, the capacitance sensing module sequentially or randomly applies a touch driving signal to selected ones of the second electrodes, and sequentially or randomly receives a touch sensing signal from selected ones of the first electrodes. In force sensing operation, the capacitance sensing module senses applied force through the second electrodes and the third electrode.
Abstract:
A capacitive pressure sensor includes an upper substrate having a first face and a second face opposite to the first face, a first electrode layer with a plurality of first sensing electrodes, a second electrode layer having at least one second sensing electrode, a dielectric layer arranged between the first and the second electrode layers, and a capacitance sensing circuit. In pressure sensing operation, the capacitance sensing circuit sends a capacitance-exciting signal to the at least one second sensing electrode and obtains a pressure sensing signal from the second sensing electrode.
Abstract:
A fingerprint identification apparatus includes a fingerprint identification IC chip having a contact face and a plurality of metal bumps arranged on the contact face, a thin substrate having a first face, a second face opposite to the first face and a plurality of metal pads arranged on the first face, wherein at least part of the metal pads electrically connect with the metal bumps, a protection layer having a mounting face adjacent to the second face of the thin substrate, and a plurality of conductive electrodes arranged between the thin substrate and the protection layer. The metal bumps are not directly pressed or press-soldered to the protection layer, thus preventing the transparent conductive traces of the protection layer from damaging and enhancing the package yield.
Abstract:
A fingerprint recognition apparatus includes an electrode-and-wiring substrate having two main surfaces opposite to each other, where one main surface is in proximity to user finger and the electrode-and-wiring substrate has a plurality of sensing electrodes on the other main surface. The fingerprint recognition apparatus further includes an integrated circuit (IC) chip having a fingerprint sensing circuit and a plurality of metal bumps. At least part of the metal bumps are electrically connected to the fingerprint sensing circuit and corresponding sensing electrodes on the electrode-and-wiring substrate, whereby the fingerprint sensing circuit is electrically connected to the sensing electrodes.
Abstract:
A two-substrate fingerprint recognition device includes a first substrate and a second substrate. A plurality of electrodes, a plurality of connection pads and a plurality of connection traces are deployed on one surface of the first substrate. A plurality of conductive connection pads, a plurality of connection pads, a plurality of connection traces and a plurality of switch circuits are deployed on one surface of the second substrate that faces the first substrate. At least one electrode connection pad of the second substrate is electrically connected to a corresponding electrode of the first substrate.
Abstract:
A high-sensitivity in-cell touch display device has a common voltage and sensing electrode layer including a plurality of common voltage and sensing electrodes, each corresponding to at least one pixel electrode. A touch circuit is provided with a touch-dedicated power supply circuit, and a common voltage and sensing electrode is used as a common node of the touch circuit and a display circuit, so that there is no current loop between the touch circuit and the display circuit. Reflection electrodes are further provided to reduce parasitic capacitance between the common voltage and sensing electrodes and to improve the sensing distance. The display operation and the touch sensing operation can be performed on different areas in parallel to increase respective efficiencies of the display and touch sensing operations.
Abstract:
A combinational sensing type fingerprint identification device includes plural sensing electrodes; plural sensing electrode switches; plural first sensed signal connection lines, and a controller. Each sensing electrode switch corresponds to one sensing electrode and has a first terminal, a second terminal connected to a common signal, a third terminal connected to a corresponding sensing electrode, and a control terminal Each first sensed signal connection line is connected to the first terminals of the sensing electrode switches in one column. The controller is connected to the control terminal of each sensing electrode switch for controlling whether the sensing electrode switches are electrically connected to the common signal or corresponding first sensed signal connection lines. The controller configures the control terminals of the sensing electrode switches for allowing a part of the sensing electrodes to be electrically connected to the corresponding first sensed signal connection lines.
Abstract:
An in-cell touch display panel device includes an upper substrate, a lower substrate, and a display controlling and sensing structure layer including a data line sub-layer and a scan line sub-layer. The data line sub-layer has plural data lines and plural first dashed conductor lines, each first dashed conductor line being formed by continuing plural first conductor segments. The scan line sub-layer has plural scan lines and plural second dashed conductor lines, each second dashed conductor line being formed by continuing plural second conductor segments. The data lines are disposed at positions identical to those of the second dashed conductor lines, and the first dashed conductor lines are disposed at positions identical to those of the scan lines, so as to form a touch sensing pattern structure by using conductor parts to selectively connect the first dashed conductor lines and the second dashed conductor lines.
Abstract:
A high-accuracy single-layer capacitive touch panel device with one side for connection includes a substrate, a plurality of conductive lines, and a touch detection circuit. The conductive lines are arranged in parallel on the surface of the substrate and extended from the first side to the second side of the substrate. Each conductive line includes a conductive trace having opposite first edge and second edge and a plurality of triangle sensing electrodes arranged at the two edges of the conductive trace. Each triangle sensing electrode is connected with the conductive trace via a connection part. Each conductive line only has one connection end close to the second side. A touch detection circuit is electrically connected to the connection ends of the plurality of conductive lines through a connection circuit, so as to detect variations of the equivalent resistances and the equivalent capacitances of the plurality of conductive lines.
Abstract:
An in-cell touch panel structure of narrow border includes an upper substrate, a lower substrate, a liquid crystal layer configured between the upper and lower substrates, a black matrix layer, a first sensing electrode layer, and a second sensing electrode layer. The first sensing electrode layer includes plural first conductor line units and plural connection lines arranged in a first direction. The second sensing electrode layer includes plural second conductor line units arranged in a second direction. When performing a touch sensing and receiving the touch driving signal, each second conductor line unit makes use of a corresponding connection line to be extended to one edge of the panel structure. The first conductor line units, the connection lines, and the second conductor line units are disposed corresponding to positions of the plurality of opaque lines of the black matrix layer.