Sensors and position detection devices

Abstract

To improve design by making the stack structure thinner while maintaining performance as a position detection device. The touch sensor includes an on-cell mutual capacitance touch sensor TS1, and an RX electrode layer (RX sensor coil group 200) having a plurality of RX electrodes arranged thereon for detecting a pen alternating magnetic field generated by a pen that accumulates energy by an alternating magnetic field from a TX electrode layer (TX sensor coil group 100) having a TX electrode that generates an alternating magnetic field for detecting the position of the pen using electromagnetic induction, the RX electrode layer (RX sensor coil group 200) being surrounded by a touch electrode formed by a mesh electrode pattern arranged on the on-cell touch layer of the on-cell mutual capacitance touch sensor TS1, and adjacent floating patterns in the extension direction of the RX electrodes are connected by jumper wiring to form a linear RX electrode wiring.

Description

[Technical field]

[0001] The present invention relates to a sensor and a position detection device. [Background technology]

[0002] 2. Description of the Related Art In recent years, position input devices using an electromagnetic induction system have come to be used as input devices for tablet PCs (personal computers) and the like. This position input device is composed of a pen-shaped position indicator (pen-type position indicator) and a position detection device having an input surface on which pointing operations and input of characters, figures, etc. are performed using this pen-type position indicator.

[0003] The position indicator includes a resonant circuit consisting of a coil and a capacitor. On the other hand, as shown in FIG. 18, in order to obtain the coordinate of the position indicator in the X-axis direction within the active area AA, the position detection device an X sensor coil group including X sensor coils X0, . . . , X4 arranged in the X direction; A switch connected to the X sensor coil group; During the sending period, an alternating magnetic field (sending magnetic field, hereafter the same) is generated by passing a current through each of the X sensor coils arranged on the X axis. During the detection period following the sending period, an X-axis TX / RX circuit detects, by current or voltage, electromotive forces generated in each of the X sensor coils by a pen signal (alternating magnetic field generated by the circuit of the position indicator, the same applies below) that is continuously generated from the position indicator that stored energy in the resonant circuit during the sending period; The present invention is configured to include the following.

[0004] Similarly, to obtain the coordinate of the Y-axis direction of the position indicator, the position detection device A Y sensor coil group including Y sensor coils Y0, . . . , Y4 arranged in the Y direction; A switch connected to the Y sensor coil group; During the transmission period, a transmission magnetic field is generated by passing a current through each of the X sensor coils arranged on the Y axis. a Y-axis TX / RX circuit for detecting, in a detection period following the transmission period, an electromotive force generated in each of the Y sensor coils by a pen signal that is continuously generated from the position indicator that has stored energy in the resonant circuit during the transmission period, as a current or voltage; The present invention is configured to include the following.

[0005] The position detection device, for example, selects one sensor coil in a predetermined order from multiple sensor coils that make up the position detection sensor, sends a transmission signal from the selected sensor coil to a position indicator, and charges a capacitor in the position indicator. On the other hand, the position detection device receives the signal transmitted from the resonant circuit of the position indicator by connecting the sensor coil used for transmission to a receiving circuit. The position detection device detects the position of the position indicator on the position detection device by sequentially switching the sensor coils to transmit and receive such signals.

[0006] To describe in detail the position detection of the position indicator in the position detection device, first, (1) a global scan is performed in which all sensor coils are switched in sequence to detect where the position indicator is located on the indicated position detection sensor, and an approximate position on the position detection sensor is identified, and (2) a sector scan is performed in which only a predetermined number of sensor coils in the vicinity of the identified approximate position are selected in sequence to transmit and receive signals, thereby accurately identifying the position indicated by the position indicator.

[0007] In the example of Figure 18, the coordinate of the position indicator in the Y-axis direction is derived by interpolation or the like from the distribution of level values ​​in one axis direction, such as the level value 34 obtained by the Y sensor coil Y0, the level value 118 obtained by the Y sensor coil Y1, ... the level value 107 obtained by the Y sensor coil Y4, as shown by RXdata (upper row) in the figure.

[0008] Similarly, as shown by RXdata (lower row) in the figure, the coordinate in the X-axis direction of the position indicator is derived by interpolation or the like from the distribution of level values ​​in one axis direction, such as the level value 25 obtained by the X sensor coil X0, the level value 100 obtained by the X sensor coil X1, ..., the level value 99 obtained by the X sensor coil X4.

[0009] In this way, in the position detection device of FIG. 18, in order to obtain the two-dimensional coordinates of the position indicator, the levels on each of the two axes are acquired separately, and the coordinates for each dimension on each of the X and Y axes are obtained using each distribution (RXdata), and these two are combined and output as two-dimensional coordinates after certain processing.

[0010] In addition, the stack configuration when the above-mentioned position detection device, a touch sensor for detecting a finger or the like by a capacitance (self-capacitance or mutual capacitance) method, and a display device are combined (or incorporated) is as shown in Figure 19, in which a display 300 (comprising a display front panel layer 301 and a TFT back panel layer 302) is provided, and an EMR sensor consisting of a TX sensor coil group 100 and an RX sensor coil group 200 is provided on the underside of the display 300 via an adhesive layer (Glue). Furthermore, a touch sensor is provided on the upper side of the display 300, and a cover glass (which may be a cover film; the same applies below) that comes into contact with a pen is provided on the upper side of the touch sensor (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0011] [Patent Document 1] JP 2007-157107 A Summary of the Invention [Problem to be solved by the invention]

[0012] However, in the conventional position detection device described in Patent Document 1 mentioned above, the touch sensor, the display 300, and the EMR sensor (including the TX sensor coil group 100 and the RX sensor coil group 200) were each constructed on a separate substrate (separate layer), which resulted in a problem that the thickness of the stack structure in which these were bonded together with an adhesive layer became thick, impairing the design.

[0013] Therefore, the present invention has been made in consideration of the above-mentioned problems, and aims to provide a sensor and a position detection device including a sensor that has a thin stack structure and improves design while maintaining performance as a position detection device. [Means for solving the problem]

[0014] Form 1: One or more embodiments of the present invention include an on-cell mutual capacitance touch sensor, and an RX electrode layer having a plurality of RX electrodes arranged to detect a pen alternating magnetic field generated by a pen that stores energy due to an alternating magnetic field from a TX electrode layer provided with a TX electrode that generates an alternating magnetic field for detecting the position of the pen using electromagnetic induction, wherein the RX electrode layer is surrounded by a touch electrode formed by a mesh electrode pattern provided on the on-cell touch layer of the on-cell mutual capacitance touch sensor, and the sensor proposes a sensor in which adjacent floating patterns in the extension direction of the RX electrodes are connected by jumper wiring to form a linear RX electrode wiring.

[0015] Form 2: One or more embodiments of the present invention propose a sensor comprising an on-cell mutual capacitance touch sensor and an electromagnetic induction sensor, in which a first electrode group constituting the on-cell mutual capacitance touch sensor and a second electrode group constituting the electromagnetic induction sensor are composed of three or less layers, including a layer in which at least a portion of the first electrode group and a portion of the second electrode group are mixed.

[0016] Form 3: One or more embodiments of the present invention propose a position detection device that detects the position of a pen by using electromagnetic induction, comprising: a TX electrode layer provided with a TX electrode that generates an alternating magnetic field; an RX electrode layer provided with a plurality of RX electrodes that detect a pen alternating magnetic field generated by a pen that accumulates energy by the alternating magnetic field; an on-cell mutual capacitance touch sensor; a display that controls display pixels and the blinking of the display pixels; and a support plate provided below the pen and away from the display, wherein the RX electrode layer is surrounded by a touch electrode formed by a mesh electrode pattern provided on the on-cell touch layer of the on-cell mutual capacitance touch sensor, and adjacent floating patterns in the extension direction of the RX electrode are connected by jumper wiring to form the RX electrode in a straight line. Effect of the Invention

[0017] According to one or more embodiments of the present invention, it is possible to obtain an effect that the stack structure can be made thin and the design can be improved while maintaining the performance as a position detection device. [Brief description of the drawings]

[0018] [Figure 1] FIG. 2 is a diagram illustrating an arrangement of touch sensors in the sensor according to the first embodiment of the present invention. [Diagram 2] 2A to 2C are diagrams showing an arrangement pattern of a mesh electrode layer on a transparent substrate of a touch sensor in the sensor according to the first embodiment of the present invention. [Diagram 3] 3 is a diagram showing jumper wiring on the rear surface of a transparent substrate of a touch sensor in the sensor according to the first embodiment of the present invention. FIG. [Figure 4] 4 is a diagram showing the mesh electrode layer of FIG. 2 and the jumper wiring of FIG. 3 superimposed on each other in the sensor according to the first embodiment of the present invention. [Diagram 5] FIG. 2 is a diagram showing an operation mode when detecting electrostatic capacitance (finger touch) by an electrostatic capacitance detection method using the sensor according to the first embodiment of the present invention. [Figure 6] 2 is a diagram showing an example of the configuration of a TX sensor coil group in a position detection device using a sensor according to the first embodiment of the present invention. FIG. [Figure 7] FIG. 4 is a diagram showing an operation mode process for performing pen detection by electromagnetic induction using the sensor according to the first embodiment of the present invention. [Figure 8] FIG. 11 is a diagram showing an example of a stack configuration in a sensor according to a second embodiment of the present invention, in which a position detection sensor, a touch sensor for detecting a finger or the like using a capacitance (self-capacitance or mutual capacitance) method, and a display device are combined (or incorporated). [Figure 9] FIG. 4 is a diagram showing a configuration of a sensor according to a second embodiment of the present invention. [Figure 10] 13A to 13C are diagrams illustrating operation mode processing when a pen detection position is detected by an electromagnetic induction method using a sensor according to a second embodiment of the present invention. [Figure 11] 7A to 7C are conceptual diagrams showing a coordinate deriving operation of a position detection device according to a second embodiment of the present invention. [Figure 12] FIG. 11 is a diagram showing a wiring configuration in a modified example of the sensor according to the second embodiment of the present invention. [Figure 13] FIG. 11 is a diagram showing a wiring configuration in a modified example of the sensor according to the second embodiment of the present invention. [Figure 14] 13A and 13B are conceptual diagrams showing a coordinate deriving operation in a modified example of the position detection device according to the third embodiment of the present invention. [Figure 15A] FIG. 13 is a diagram showing an example of a stack configuration in which a position detection device according to a third embodiment of the present invention, a touch sensor for detecting a finger or the like using a capacitance (self-capacitance or mutual capacitance) method, and a display device are combined (or incorporated). [Figure 15B] FIG. 13 is a diagram showing an example of a stack configuration in which a position detection device according to a third embodiment of the present invention, a touch sensor for detecting a finger or the like using a capacitance (self-capacitance or mutual capacitance) method, and a display device are combined (or incorporated). [Figure 16]FIG. 13 is a diagram showing an example of a stack configuration in which a position detection device according to a fourth embodiment of the present invention, a touch sensor for detecting a finger or the like using a capacitance (self-capacitance or mutual capacitance) method, and a display device are combined (or incorporated). [Figure 17] FIG. 13 is a diagram showing an example of the configuration of a TX sensor coil group in a position detection device according to a fourth embodiment of the present invention. [Figure 18A] FIG. 13 is a diagram showing an example of a stack configuration in which a position detection device according to a fifth embodiment of the present invention, a touch sensor for detecting a finger or the like using a capacitance (self-capacitance or mutual capacitance) method, and a display device are combined (or incorporated). [Figure 18B] FIG. 13 is a diagram showing an example of a stack configuration in which a position detection device according to a fifth embodiment of the present invention, a touch sensor for detecting a finger or the like using a capacitance (self-capacitance or mutual capacitance) method, and a display device are combined (or incorporated). [Figure 19] FIG. 13 is a diagram showing an example of the configuration of a TX sensor coil group in a position detection device according to a fifth embodiment of the present invention. [Figure 20] FIG. 13 is a conceptual diagram showing a coordinate deriving operation of a position detection device according to a conventional example. [Figure 21] FIG. 1 is a diagram showing a conventional stack configuration in which a position detection device according to a conventional example, a touch sensor for detecting a finger or the like using a capacitance (self-capacitance or mutual capacitance) method, and a display device are combined (or incorporated). DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] Hereinafter, an embodiment of the present invention will be described with reference to FIGS.

[0020] <First embodiment> A sensor 1 according to this embodiment will be described with reference to FIGS.

[0021] <Sensor 1 Configuration> As shown in Figures 1 to 4, the sensor 1 of this embodiment is configured to include an on-cell type mutual capacitance touch sensor TS1 and an RX electrode layer (RX sensor coil group 200) for detecting the position of a pen by using electromagnetic induction.

[0022] The on-cell mutual capacitance touch sensor TS1 is an integrated sensor (Integrated / Universal Sensor Module) provided on top of a laminate of a TFT back panel layer 302 and a display front panel layer 301, as shown in FIG. The on-cell mutual capacitance touch sensor TS1 is provided, for example, between the display front panel layer 301 and a glass substrate provided with a polarizing plate and a color filter (not shown) on the upper part of the display front panel layer 301. The on-cell mutual capacitance type touch sensor TS1 is, for example, a mutual capacitance type touch sensor.

[0023] The RX electrode layer (RX sensor coil group 200) is a sensor that detects the pen alternating magnetic field generated by a pen that accumulates energy due to the alternating magnetic field from the TX electrode layer provided with TX electrodes that generate an alternating magnetic field to detect the position of the pen using electromagnetic induction, and the RX electrode layer (RX sensor coil group 200) has multiple RX electrodes arranged thereon. The detailed configuration of the RX electrode layer (RX sensor coil group 200) for detecting the position of the pen by using electromagnetic induction will be described later.

[0024] The sensor 1 of this embodiment is formed, for example, as shown in FIG. 4, by integrating an RX electrode layer (RX sensor coil group 200) for detecting the position of a pen using electromagnetic induction into a mesh electrode pattern provided on an on-cell touch layer of an on-cell mutual capacitance touch sensor TS1.

[0025] <Configuration of the on-cell type mutual capacitance touch sensor TS1> As shown in FIG. 2, when the on-cell mutual capacitance touch sensor TS1 is viewed from above, it is formed as a mesh pattern of a mesh electrode layer provided on one surface of a transparent substrate. The on-cell mutual capacitance touch sensor TS1 includes a plurality of first sensor electrodes (TX electrodes for touch panel) 210 and a plurality of second sensor electrodes 220 (RX electrode layers for touch panel). The plurality of first sensor electrodes (TX electrodes for touch panel) 210 and the plurality of second sensor electrodes 220 (RX electrode layers for touch panel) are superimposed on a display area (not shown).

[0026] A plurality of first sensor electrodes 210 are arranged in the direction D1 shown in FIG. As shown in FIG. 2, the first sensor electrode 210 has, for example, a diamond shape made up of a floating pattern 611 and a peripheral portion 612 surrounding the periphery of the floating pattern 611. Peripheral portions 612 of the first sensor electrodes 210 are connected to peripheral portions 612 of adjacent first sensor electrodes 210 in the D1 direction by mesh connection portions 613 to form first touch sensor wirings (T0 to T4). The mesh connecting portion 613 is formed from the same material as the first sensor electrode 210 . The first sensor electrode 210 is insulated in the mesh electrode layer from mesh patterns that do not form the first touch sensor wiring (for example, the floating pattern 611 and the second sensor electrode 220). As shown in FIG. 2, the D1 direction and the D2 direction intersect. The first sensor electrode 210 is a transmission electrode in the on-cell type mutual capacitance touch sensor TS1.

[0027] A plurality of second sensor electrodes 220 are arranged in the direction D2 shown in FIG. As shown in FIG. 2, the second sensor electrode 220 has, for example, a diamond shape made up of a floating pattern 611 and a peripheral portion 612 surrounding the periphery of the floating pattern 611. As shown in FIG. 4, the peripheral portion 612 of the second sensor electrode 220 is connected on the back side of the transparent substrate by the peripheral portion 612 of the second sensor electrode 220 adjacent in the D2 direction and the jumper wiring 703, and forms the second touch sensor wiring (TR0 to TR5). Since the jumper wiring 703 is provided for connection on the back side of the transparent substrate, the mesh connection portion 613 and the jumper wiring 703 are insulated from each other and do not need to be made of the same material as the second sensor electrode 220. The second sensor electrode 220 is a receiving electrode in the on-cell type mutual capacitance touch sensor TS1, and one end of the second touch sensor wiring (TR0 to TR5) is connected to a touch sensor signal receiving circuit (not shown).

[0028] <Configuration of RX Electrode Layer (RX Sensor Coil Group 200)> As shown in FIGS. 3 and 4, the RX electrode layer (RX sensor coil group 200) in the sensor 1 according to the present embodiment is formed by connecting one end of the EMR sensor wiring (ER0 to ER5) formed by connecting the peripheral portion 612 of the first sensor electrode 210 adjacent to the peripheral portion 612 of the first sensor electrode 210 in the D2 direction by the jumper wiring 701, by connecting them to each other by the jumper wiring 702. The RX electrode layer (RX sensor coil group 200) is a receiving electrode in the EMR sensor, and the other end of the EMR sensor wiring is connected to an RX signal receiving circuit (not shown).

[0029] Since the jumper wirings 701 and 702 are provided for connection on the back side of the transparent substrate, the jumper wirings 701 and 702 do not need to be made of the same material as the second sensor electrode 220.

[0030] <Operation Mode at the Time of Detecting Capacitance (Finger Touch) by Capacitance Detection Method> Using FIG. 5, the operation mode at the time of detecting capacitance (finger touch) by the capacitance detection method in the sensor 1 according to the present embodiment will be described.

[0031] When performing the capacitance detection operation, the sensor 1 according to this embodiment executes the capacitance detection operation using first touch sensor wirings T0 to T4 composed of a plurality of first sensor electrodes (TX electrodes for touch panel) 210 and second touch sensor wirings TR0 to TR5 composed of a plurality of second sensor electrodes (RX electrodes for touch panel) 220.

[0032] Specifically, in the TX circuit 10 on the left side in the figure, one end of the first touch sensor wiring T1 selected by the switch 11 among the first touch sensor wirings T0 to T4 is driven by a positive-phase touch signal. On the other hand, in the TX circuit 10 on the right side in the figure, the other end of the first touch sensor wiring T1 selected by the switch 11 among the first touch sensor wirings T0 to T4 is driven by a positive-phase touch signal. Thereby, it becomes possible to supply a desired potential (TX signal for touch sensor) to the first touch sensor wiring T1.

[0033] The RX circuit 20 detects the change in mutual capacitance from the reference value at the cross point (the intersection of T1 and TR2) by the selected second touch sensor wiring TR2. The RX circuit 20 acquires the change in capacitance for each cross point as a two-dimensional heat map, and derives the position of finger touch using operations such as centroid calculation used in capacitance detection.

[0034] <Pen detection by electromagnetic induction method> In order to perform pen detection by the electromagnetic induction method using the sensor 1 according to this embodiment, a TX electrode layer (TX sensor coil group 100) provided in a layer below the sensor 1 and an RX electrode layer (RX sensor coil group 200) provided in the sensor 1 are used. Hereinafter, with reference to FIG. 6, the configuration of the TX electrode layer (TX sensor coil group 100) will be exemplified and the operation of pen detection by the electromagnetic induction method will be described.

[0035] <Configuration of TX electrode layer (TX sensor coil group 100)> FIG. 6 is a diagram showing a configuration example of the TX electrode layer (TX sensor coil group 100). The configuration of the TX electrode layer (TX sensor coil group 100) in the same figure is particularly effective when the TX electrode layer (TX sensor coil group 100) and the RX electrodes (RX sensor coil group 200) are provided on separate layers separated from each other and formed into a single layer.

[0036] The TX electrode layer (TX sensor coil group 100) is formed on one surface of the substrate. As shown in FIG. 6, the TX electrode layer (TX sensor coil group 100) includes TX electrodes 120 to 135 which respectively constitute TX sensor coils T0, T1, to T15, and a connection conductor 130 which serves as a connection portion connecting the TX electrodes 120 to 135 to each other, and is configured in a comb shape (SAW shape).

[0037] A position detection device equipped with the sensor 1 and TX electrode layer (TX sensor coil group 100) of this embodiment controls the switch 11, for example, to bundle TX electrodes 125 and 126 and connect them to the TX terminal of the TX circuit 10, while bundling TX electrodes 128 and 129 and connecting them to the TX_inv terminal of the TX circuit 10. By controlling the TX terminal and the TX_inv terminal so that the amount of change in current is in opposite phase to each other, the TX circuit 10 forms a stronger transmission magnetic field between the bundle of TX electrodes 125 and 126 and the bundle of TX electrodes 128 and 129 (near TX electrode 127) than when they are not bundled and than when TX_inv is set to a fixed potential. The switch 11 and the TX circuit 10 may be implemented on separate integrated circuits, or may be integrated into the same integrated circuit.

[0038] <Operation mode when detecting a pen using electromagnetic induction> An operation mode during pen detection by the electromagnetic induction method in the sensor 1 according to this embodiment will be described with reference to FIG. In FIG. 7, components related to electrostatic capacitance (finger touch) detection by the electrostatic capacitance detection method are omitted because they do not function during pen detection by the electromagnetic induction method.

[0039] During the transmission period, the TX circuit 10 shown in the lower left of Figure 6 drives one end of a sensor coil (T5, T6 in the figure) selected by a switch 11 from the transmission sensor coils (TX sensor coils) T0 to T4 of the transmission sensor coil group (TX sensor coil group 100) with a positive phase signal via the TX terminal.

[0040] Next, one end of a sensor coil (T8, T9 in the figure) selected by the switch 11 is driven via the TX_inv terminal with a negative phase signal that produces a current change in phase opposite to that of the positive phase signal. This allows a strong emitted magnetic field to be generated near the pen position.

[0041] In the detection period following the transmission period, the RX circuit 20 shown in FIG. 7 connects the RX sensor coil ER2 and the RX sensor coil ER3, which logically form one loop coil, to the input ends of a differential amplifier circuit via the switch 21, and detects the signal level of the pen signal passing through this loop coil. After this, a two-dimensional heat map (RXdata) is obtained, and the pen coordinates, tilt, tilt direction, etc. are derived based on this two-dimensional heat map.

[0042] <Actions and Effects> As described above, the sensor 1 of this embodiment includes an on-cell mutual capacitance touch sensor TS1, and an RX electrode layer (RX sensor coil group 200) in which a plurality of RX electrodes are arranged to detect a pen alternating magnetic field generated by a pen that accumulates energy by an alternating magnetic field from a TX electrode layer (TX sensor coil group 100) in which a TX electrode is provided that generates an alternating magnetic field for detecting the position of the pen using electromagnetic induction, and the RX electrode layer (RX sensor coil group 200) is surrounded by a touch electrode formed by a mesh electrode pattern provided on the on-cell touch layer of the on-cell mutual capacitance touch sensor TS1, and adjacent floating patterns in the extension direction of the RX electrodes are connected by jumper wiring to form a linear RX electrode wiring. That is, in the sensor 1 according to this embodiment, at least an RX electrode layer (RX sensor coil group 200) for performing pen detection by electromagnetic induction is integrated into the on-cell mutual capacitance touch sensor TS1. In addition, the RX electrode layer (RX sensor coil group 200) is surrounded by a touch electrode formed by a mesh electrode pattern provided in the on-cell touch layer of the on-cell type mutual capacitance touch sensor TS1, and is formed by connecting adjacent floating patterns in the extension direction of the RX electrode. Therefore, in a position detection device using the sensor 1 according to this embodiment, the performance as a position detection device can be maintained while the stack structure can be made thin and the design can be improved. Furthermore, in the sensor 1 according to this embodiment, the floating patterns adjacent to each other in the extension direction of the RX electrodes are coupled to each other by jumper wiring. In other words, since the current flowing through the RX electrode is small, the jumper wiring can be made of a small diameter. Moreover, the wiring is provided on the back side of the on-cell touch layer formed by the mesh electrode pattern. Therefore, the stack structure can be made thinner and the design can be improved without impairing the visibility of the display.

[0043] In the sensor 1 of this embodiment, one end of the EMR sensor wiring (ER0 to ER5) formed in a straight line is connected to a circuit section that receives a pen signal, which is a response alternating magnetic field, and acquires the level of the pen signal, and one end of the EMR sensor wiring (ER0 to ER5) is connected to each other by a jumper wiring 702. Therefore, the RX electrode layer (RX sensor coil group 200) used for detecting the position of the pen using the electromagnetic induction method can have a thin stack structure to improve design while maintaining performance as a position detection device and without compromising the visibility of the display, while reducing costs.

[0044] <Second embodiment> A sensor 1A according to this embodiment will be described with reference to FIGS.

[0045] <Configuration of sensor 1A> As shown in Figures 8 and 9, the sensor 1A of this embodiment includes an on-cell mutual capacitance touch sensor TS1, a TX electrode layer (TX sensor coil group 100) provided with TX electrodes that generate an alternating magnetic field for detecting the position of the pen using electromagnetic induction, and an RX electrode layer (RX sensor coil group 200) provided with a plurality of RX electrodes that detect a pen alternating magnetic field generated by a pen that has accumulated energy by the alternating magnetic field from the TX electrode layer (TX sensor coil group 100). It should be noted that the above components have the same functions as those of the first embodiment, and therefore detailed description thereof will be omitted.

[0046] <Stack configuration of displays using sensor 1A> FIG. 8 shows an example of a stack configuration of a display in which the sensor 1A according to this embodiment is used, and is based on a display configuration known as on-cell touch. The display 300D is provided with a display front panel layer 301 and a TFT back panel layer 302 that controls the display front panel layer 301. FIG. 8 shows a so-called on-cell touch panel configuration in which a capacitive touch sensor TS1 is provided in a module of a display 300D, which is an upper layer of the display front panel layer 301. The sensor 1A, for example, includes an on-cell mutual capacitance touch sensor TS1 and an electromagnetic induction sensor, and is configured with three or less layers, including a layer in which a first electrode group constituting the on-cell mutual capacitance touch sensor TS1 and a second electrode group constituting the electromagnetic induction sensor are mixed with at least a part of the first electrode group and a part of the second electrode group. In other words, the sensor 1A is composed of three or less layers, including a layer in which a first electrode group constituting the on-cell mutual capacitance touch sensor TS1 and a second electrode group constituting the electromagnetic induction sensor are mixed with at least a portion of the first electrode group and a portion of the second electrode group (hereinafter referred to as a "mixed layer" as appropriate). More specifically, the sensor 1A may be composed of, for example, at least a first layer provided with a first electrode group constituting an on-cell mutual capacitance touch sensor TS1, a second layer (mixed layer) provided with auxiliary wiring connecting between some of the first electrode groups and some of the second electrode groups constituting an electromagnetic induction type sensor, and a third layer provided with another part of the second electrode groups constituting the electromagnetic induction type sensor. In the above, a first layer in which the on-cell type mutual capacitance touch sensor TS1 is formed, a mixed layer, and a layer in which part of the electromagnetic induction sensor is formed are exemplified, but the mixed layer does not necessarily have to be an intermediate layer in a three-layer structure. In other words, as long as there is no problem with performance, any combination is acceptable as long as a mixed layer is interposed. Furthermore, the sensor 1A may have a two-layer structure, as shown in, for example, Figures 2, 3 and 9, consisting of a shared layer that shares an electrode group extending in a first direction of the on-cell mutual capacitance touch sensor TS1 with a portion of an electrode group of a second electrode group that generates an alternating magnetic field for detecting the position of a pen in an electromagnetic induction type sensor, and a mixed layer in which another portion of the electrode group of the second electrode group that detects a pen alternating magnetic field generated by a pen that has stored energy by the alternating magnetic field from the portion of the electrode group of the second electrode group, and an electrode group extending in a second direction intersecting the first direction of the on-cell mutual capacitance touch sensor TS1 are each connected via auxiliary wiring. Here, the auxiliary wiring includes, for example, a jumper wiring or a bridge wiring. The auxiliary wiring (such as a jumper wire or bridge wiring) is a conductor provided on a layer on which wiring to be electrically connected by the auxiliary wiring is formed, and complements conductors formed on other layers to form a touch sensor or an electromagnetic induction type sensor. As shown in FIG. 12, the peripheral portions of the first sensor electrodes 210 adjacent to each other in the first direction are connected by a connection portion formed of multiple wirings or wide wirings, and in some other electrode groups of the second electrode group, the floating patterns 611 of the second sensor electrodes 220 adjacent to each other in the extension direction are connected by multiple auxiliary wirings. The shapes of the second sensor electrode 220 and the first sensor electrode 210 are different from those in Figure 9 etc., but as shown in Figure 13 which shows the concept, multiple wirings are added to the peripheral portion 622 of the floating pattern 611 or the floating pattern 621 in the first sensor electrode 210 or the second sensor electrode 220.

[0047] The TX electrode layer (TX sensor coil group 100) and the RX electrode layer (RX sensor coil group 200) are integrated into an on-cell mutual capacitance touch sensor TS1. Specifically, the on-cell mutual capacitance touch sensor TS1 is an on-cell mutual capacitance touch sensor TS1 of an on-cell mutual capacitance type, in which the RX electrode layer (RX sensor coil group 200) has the configuration shown in the first embodiment, and the TX electrode layer (TX sensor coil group 100A) is of a type in which, for example, T0 of a plurality of first sensor electrodes (TX electrodes for touch panel) 210 in the on-cell mutual capacitance touch sensor TS1 is shared as ET0 of the TX electrode layer (TX sensor coil group 100A), as shown in FIG. 9. As shown in FIG. 3, the coil group formed by connecting some of the second electrode group by auxiliary wiring has a comb shape. As shown in FIG. 9, the sensor electrodes 210, 220 of the on-cell mutual capacitance touch sensor TS1 include floating patterns 611, 621 and a peripheral portion surrounding the floating patterns 611, 621 from the outside, and a linear coil group including the floating pattern 621 and auxiliary wiring 702 extending from the open end side to the terminal end side of the comb-shaped coil group is arranged so as not to overlap in a planar view with a linear coil group including the peripheral portion 622 and auxiliary wiring 703 extending in a second direction intersecting the first direction of the on-cell mutual capacitance touch sensor TS1. Here, the comb shape refers to a shape formed by a first wiring and a plurality of second wirings described below. The first wiring is a wiring extending in a first direction, and the second wiring is a plurality of wirings extending in a second direction intersecting the first direction, and the plurality of second wirings are arranged side by side in the first direction at a predetermined interval. Furthermore, the first wiring and the plurality of second wirings are electrically connected. Here, for convenience, if the ends of the multiple second wirings are considered to be the terminal ends connected to the first wirings and the other ends are considered to be open ends, then one end of each of the multiple second wirings is connected to the first wiring and the other ends are open, and the shape of each second wiring is comb-shaped. The other open ends of the multiple second wirings are connected to an integrated circuit and are used, for example, to supply a drive signal or detect a received signal.

[0048] <Pen detection using electromagnetic induction method> Hereinafter, an operation mode during pen detection by the electromagnetic induction method in the sensor 1A according to this embodiment will be described with reference to FIG. Note that the operation mode when detecting capacitance (finger touch) by the capacitance detection method is the same as in the first embodiment, and therefore a detailed description thereof will be omitted. In addition, in FIG. 10, components related to electrostatic capacitance (finger touch) detection by the electrostatic capacitance detection method do not function during pen detection by the electromagnetic induction method, so they are not shown.

[0049] The TX circuit 10 shown on the left side of Figure 10 drives one end of a sensor coil (T1 in the figure) selected by a switch 11 from the sending sensor coils (TX sensor coils) T0 to T4 of the sending sensor coil group (TX sensor coil group 100A) with a positive phase signal via the TX terminal during the sending period.

[0050] On the other hand, one end of the sensor coil (TX sensor coil, T3 in the figure) selected by the switch 11 is driven via the TX_inv terminal with a reverse phase signal that produces a current change in reverse phase to the current change of the positive phase signal.

[0051] At the same time, the TX circuit 10 located on the right side of the figure drives the other end of the sensor coil (TX sensor coil, T3 in the figure) selected by the switch 11 via the TX_inv terminal with an inverted phase signal that produces a current change that is in phase opposite to the current change of the positive phase signal.

[0052] On the other hand, the other end of the sensor coil (TX sensor coil, T1 in the figure) selected by the switch 11 from among the sending sensor coils T0 to T4 of the sending sensor coil (TX sensor coil 100A) group is driven with a positive phase signal via the TX terminal. This makes it possible to generate the aforementioned strong emitted magnetic field in the vicinity of the pen position (in the vicinity of T2 in the drawing).

[0053] In the detection period following the transmission period, the RX circuit 20 connects the RX sensor coil ER2 and the RX sensor coil ER3, which logically form one loop coil, to the input end of the differential amplifier circuit via the switch 21, and detects the signal level of the pen signal passing through this loop coil. Then, a two-dimensional heat map (RXdata) is obtained, and the pen coordinates, tilt, tilt direction, etc. are derived based on this two-dimensional heat map.

[0054] <Actions and Effects> As described above, the sensor 1A of this embodiment is configured to include an on-cell type mutual capacitance touch sensor TS1, a TX electrode layer (TX sensor coil group 100) provided with TX electrodes that generate an alternating magnetic field for detecting the position of the pen using electromagnetic induction, and an RX electrode layer (RX sensor coil group 200) provided with a plurality of RX electrodes that detect a pen alternating magnetic field generated by a pen that has accumulated energy by the alternating magnetic field from the TX electrode layer (TX sensor coil group 100). In other words, the sensor 1A of this embodiment integrates the on-cell mutual capacitance touch sensor TS1 and an EMR sensor by utilizing the first sensor electrode (TX electrode for touch panel) 210 in the on-cell mutual capacitance touch sensor TS1 in the sensor 1 of the first embodiment as a TX electrode layer (TX sensor coil group 100A) for performing pen detection by electromagnetic induction when performing pen detection by electromagnetic induction. Therefore, in a position detection device using the sensor 1A according to this embodiment, the performance as a position detection device can be maintained while the stack structure can be made thin to improve the design. Furthermore, the floating patterns adjacent to each other in the extending direction of the RX electrodes are coupled to each other by jumper wiring. In other words, since the current flowing through the RX electrode is small, a jumper wire with a small diameter can be used, and is wired on the back side of the on-cell touch layer formed by the mesh electrode pattern. Therefore, the stack structure can be made thinner and the design can be improved without impairing the visibility of the display. The TX electrode layer (TX sensor coil group 100A) is made up of a first sensor electrode (TX electrode for touch panel) 210 consisting of a touch electrode formed by a mesh electrode pattern provided on the on-cell touch layer of the on-cell mutual capacitance touch sensor TS1. Therefore, even if the RX electrode layer (RX sensor coil group 200) and the TX electrode layer (TX sensor coil group 100A) are integrated into the on-cell mutual capacitance touch sensor TS1, the stack structure can be made thinner and the design improved without impairing the visibility of the display.

[0055] The sensor 1A of this embodiment includes an on-cell mutual capacitance touch sensor TS1 and an electromagnetic induction sensor, and the first electrode group constituting the on-cell mutual capacitance touch sensor TS1 and the second electrode group constituting the electromagnetic induction sensor are configured with three or less layers, including a layer in which at least a portion of the first electrode group and a portion of the second electrode group are mixed. In other words, the sensor 1A is composed of three or less layers, including a layer in which a first electrode group constituting the on-cell mutual capacitance touch sensor TS1 and a second electrode group constituting the electromagnetic induction sensor are mixed with at least a portion of the first electrode group and a portion of the second electrode group (hereinafter referred to as a "mixed layer" as appropriate). Therefore, the stack structure can be made thin while maintaining the performance as a position detection device. Furthermore, by realizing the above stack configuration, the optical characteristics of the display device can be improved, and the design of the display device can also be improved.

[0056] The sensor 1A of this embodiment is composed of at least a first layer on which a first electrode group constituting an on-cell mutual capacitance touch sensor TS1 is provided, a second layer (mixed layer) on which auxiliary wiring connecting some of the first electrode group and some of the second electrode group constituting an electromagnetic induction type sensor are provided, and a third layer on which the other part of the second electrode group constituting the electromagnetic induction type sensor is provided. Therefore, the stack structure can be made thin while maintaining the performance as a position detection device. Furthermore, by realizing the above stack configuration, the optical characteristics of the display device can be improved, and the design of the display device can also be improved.

[0057] The sensor 1A of this embodiment has a two-layer structure consisting of a shared layer that shares an electrode group extending in a first direction of the on-cell mutual capacitance touch sensor TS1 and a portion of the electrode group of the second electrode group that generates an alternating magnetic field for detecting the position of the pen in the electromagnetic induction sensor, and an integrated layer in which the other portion of the electrode group of the second electrode group that detects the pen alternating magnetic field generated by a pen that has stored energy by the alternating magnetic field from the portion of the electrode group of the second electrode group and the electrode group extending in a second direction intersecting the first direction of the on-cell mutual capacitance touch sensor TS1 are each connected via auxiliary wiring. Therefore, the stack structure can be made thinner while maintaining the performance as a position detection device. Moreover, by realizing the above stack configuration, the optical characteristics of the display device can be further improved, and the design of the display device can also be further improved.

[0058] In the sensor 1A according to this embodiment, the auxiliary wiring includes a jumper wiring, a bridge wiring, or the like. Therefore, the stack structure can be made thin while maintaining the performance as a position detection device. Furthermore, by realizing the above stack configuration, the optical characteristics of the display device can be improved, and the design of the display device can also be improved.

[0059] In the sensor 1A according to this embodiment, the coil group formed by connecting some of the second electrode group by auxiliary wiring has a comb shape. In other words, the coil group 200, in which some of the second electrode group are connected by auxiliary wiring, is formed in a comb shape, so that adjacent coils do not overlap each other and have gaps between them, and each coil is wound with one turn (not multiple turns). Therefore, the optical characteristics of the display device can be improved. In addition, while maintaining performance as a position detection device, the coil group 200, in which some of the second electrode groups are connected by auxiliary wiring, is formed in a comb shape, thereby making it possible to reduce the thickness of the stack structure and improve the design of the display device.

[0060] In the sensor 1A of this embodiment, the sensor electrodes 210, 220 of the on-cell mutual capacitance touch sensor TS1 include floating patterns 611, 621 and a peripheral portion surrounding the floating patterns 611, 621 from the outside, and a linear coil group including the floating pattern 621 and auxiliary wiring 702 extending from the open end side to the terminal end side of the comb-shaped coil group is arranged so as not to overlap in a planar view with the linear coil group including the peripheral portion 622 and auxiliary wiring 703 extending in a second direction intersecting the first direction of the on-cell mutual capacitance touch sensor TS1. In other words, as shown in Figure 9, in a plan view, a linear coil group including a peripheral portion 622 and auxiliary wiring 703 extending in a second direction intersecting the first direction of the on-cell mutual capacitance touch sensor TS1 is disposed between linear coil groups including a floating pattern 621 and auxiliary wiring 702 extending from the open end side toward the terminal end side of the comb-shaped coil group. If a linear coil group including the peripheral portion 622 and auxiliary wiring 703 extending in a second direction intersecting with the first direction of the on-cell mutual capacitance touch sensor TS1 and a linear coil group including the floating pattern 621 and auxiliary wiring 702 extending from the open end side to the terminal side of the comb-shaped coil group overlap in a planar view, a large parasitic capacitance will be generated between the linear coil group including the peripheral portion 622 and auxiliary wiring 703 extending in the second direction intersecting with the first direction of the on-cell mutual capacitance touch sensor TS1 and the linear coil group including the floating pattern 621 and auxiliary wiring 702 extending from the open end side to the terminal side of the comb-shaped coil group, resulting in a loss of performance. In the sensor 1A of this embodiment, in a plan view, a linear coil group including a peripheral portion 622 and auxiliary wiring 703 extending in a second direction intersecting the first direction of the on-cell mutual capacitance touch sensor TS1 is disposed between linear coil groups including a floating pattern 621 and auxiliary wiring 702 extending from the open end side to the terminal end side of the comb-shaped coil group, thereby preventing the generation of a large parasitic capacitance and improving the optical characteristics of the display device since no physical overlap occurs. Furthermore, while maintaining the performance as a position detection device, the stack structure can be made thinner, and the design of the display device can be improved.

[0061] In the sensor 1A of this embodiment, the peripheral portions of the first sensor electrodes 210 adjacent in the first direction are connected to each other by a connection portion composed of multiple wirings or wide wirings, and in some other electrode groups among the second electrode groups, the floating patterns 611 of the second sensor electrodes 220 adjacent in the extension direction are connected to each other by multiple auxiliary wirings. That is, as shown in FIG. 12, the peripheral portions of first sensor electrodes 210 adjacent to each other in the first direction are connected to each other by a connection portion constituted by a plurality of wires or a wide wire. In addition, in other parts of the second electrode group, the floating patterns 611 of the second sensor electrodes 220 adjacent to each other in the extension direction are connected to each other by a plurality of auxiliary wirings. By adopting such a connection form, the connection impedance between the electrodes can be reduced. Furthermore, by using a plurality of wirings, it is possible to suppress a decrease in visibility.

[0062] In sensor 1A according to this embodiment, a plurality of wirings are added to peripheral portion 622 of floating pattern 611 or floating pattern 621 in first sensor electrode 210 or second sensor electrode 220. By adopting such a configuration, the impedance of the floating pattern 611 or the peripheral portion 622 of the floating pattern 621 in the first sensor electrode 210 or the second sensor electrode 220 can be reduced.

[0063] <Third embodiment> The position detection device 2 according to this embodiment will be described below with reference to FIGS.

[0064] <Configuration of position detection device 2> As shown in FIG. 13, the position detection device 2 is composed of a TX circuit 10, a switch 11, a TX sensor coil group 100, an RX sensor coil group 200, an RX circuit 20, and peripheral circuits such as an amplifier. Since the position detection device 2 according to this embodiment is a position detection device using the sensor 1 according to the first embodiment, detailed description of the RX sensor coil group 200 and the like will be omitted.

[0065] The TX sensor coil group 100 is a plurality of conductors having a plurality of electrodes arranged in parallel in a first direction (X-axis direction) of the sensor. The TX sensor coils constituting the TX sensor coil group 100 are, for example, rectangular loop coils. The TX sensor coils constituting the TX sensor coil group 100 are arranged, for example, at equal intervals.

[0066] The TX circuit 10 transmits a signal to the TX sensor coil group 100 via a switch 11, and functions as an alternating magnetic field generating section that causes the TX sensor coil group 100 to generate an alternating magnetic field. That is, in the position detection device 2 according to this embodiment, the TX sensor coils T0, T1, . . . , T4 are connected to the TX circuit 10 and used to generate an alternating magnetic field, but are not used to detect pen signals.

[0067] The RX circuit 20 receives a pen signal, which is a response alternating magnetic field from the position indicator stored by an alternating magnetic field, using a plurality of electrodes of the RX sensor coil group 200, and functions as a pen signal level acquisition section that acquires the level of the pen signal. Specifically, the RX circuit 20 derives the coordinates of the pen, etc., at a cross point where a plurality of electrodes (TX electrodes) arranged in a row in a first direction (X-axis direction) of the sensor intersect with a plurality of electrodes (RX electrodes) arranged in a row in a second direction (Y-axis direction) that intersects with the first direction (X-axis direction). That is, the RX sensor coils R0, R1, . . . , R4 are connected to the RX circuit 20 and used to detect the pen signal, but are not used to generate the transmitted magnetic field. The RX circuit 20 functions as an information derivation unit that derives information regarding the position of the position indicator using a two-dimensional distribution of the pen signal levels at each intersection between the multiple conductors of the TX sensor coil group 100 and the multiple electrodes of the RX sensor coil group 200. Here, information about the position of the pen (position indicator) includes either the inclination of the pen with respect to the normal to the sensor plane (the XY plane consisting of the X-axis and Y-axis) or the direction of the inclination of the pen with respect to the sensor plane.

[0068] The information derivation section of the RX circuit 20 derives either the inclination of the pen with respect to the normal to the sensor plane or the direction of the inclination of the pen with respect to the sensor plane based on the asymmetry of the two-dimensional distribution.

[0069] The information derivation unit of the RX circuit 20 acquires a first reference position, which is the position indicated by the tip of the pen, acquires a second reference position that is convex upward or convex downward, and derives the direction of inclination of the pen relative to the sensor plane based on the direction of the second reference position relative to the first reference position.

[0070] The information derivation section of the RX circuit 20 derives the inclination of the pen with respect to the normal to the sensor plane based on the level intensity of the pen signal at the first reference position and the level intensity of the pen signal at the second reference position.

[0071] <Processing of Position Detection Device 2> The position detection device 2 selects one TX sensor coil from the TX sensor coil group 100 that generates a transmission magnetic field by the TX circuit 10 using the switch 11, and drives the selected TX sensor coil by the TX circuit 10 to emit the transmission magnetic field. FIG. 11 shows a state in which the TX sensor coil T1 is selected.

[0072] The position detection device 2 obtains the level of the pen signal at the position of all RX sensor coils after a certain emission period, ie after a period during which a certain amount of energy would be accumulated if the pen were in the vicinity of the TX sensor coil. The position detection device 2 detects the level values ​​(33, 105, 118, 121, 110 in the figure) of the pen signal in the area where the TX sensor coil T1 and the RX sensor coils R1, R2, . . . R4 cross (hereinafter, coil cross point area). The position detection device 2 obtains two-dimensional heat map data RXdata by sequentially switching the selection of the TX sensor coils based on the signal level at each coil cross point.

[0073] After acquiring the two-dimensional heat map data RXdata, the position detection device 2 executes a coordinate processing process to obtain the pen coordinates, the pen inclination (angle from the normal to the sensor surface) or the pen orientation (tilt direction) based on the two-dimensional heat map data RXdata.

[0074] <Stack configuration of position detection device 2> The stack configuration of the position detection device 2 according to this embodiment will be described with reference to FIGS. 15A and 15B. The stack configuration described below is not limited to the position detection device 2 according to this embodiment, but can also be applied to the position detection device 2A shown in FIG. 14 or the conventional position detection device shown in FIG. 20 and the like.

[0075] <Stack configuration 1 of position detection device 2> The stack configuration 1 of the position detection device 2 shown in FIG. 15A includes a TX electrode layer (TX sensor coil group 100) provided with TX electrodes that generate an alternating magnetic field, a display 300E that controls display pixels and the blinking of the display pixels, and an RX electrode layer (RX sensor coil group 200) provided with a plurality of RX electrodes that detect a pen alternating magnetic field generated by a pen that accumulates energy through the alternating magnetic field, on the opposite side of the display 300E to the side on which the TX electrode layer (TX sensor coil group 100) is provided. That is, the stack configuration 1 of the position detection device 2 shown in FIG. 15A is configured such that the TX electrode layer (TX sensor coil group 100) and the RX electrode layer (RX sensor coil group 200) are provided in separate layers.

[0076] As shown in FIG. 15A, in the stack configuration 1 of the position detection device 2, a TX electrode layer (TX sensor coil group 100) is provided on the TFT back panel layer 302, and an RX electrode layer (RX sensor coil group 200) is provided on an upper layer above the display front panel layer 301 on which the on-cell mutual capacitance touch sensor TS1 is provided, to form the display 300E. A cover glass is attached to the top of the display 300E with an adhesive or the like.

[0077] In this configuration, a sensor 1 is provided on the upper side of the display front panel layer 301, in which the capacitive touch sensor shown in the first embodiment and the RX electrode layer (RX sensor coil group 200) are integrated. A magnetic shield plate may be provided below the TX electrode layer (TX sensor coil group 100).

[0078] <Stack configuration 2 of position detection device 2> As shown in FIG. 15B, in the stack configuration 2 of the position detection device 2, the TX electrode layer (TX sensor coil group 100) is not provided on the TFT back panel layer 302, but is provided below the display 300F, and an RX electrode layer (RX sensor coil group 200) is provided together with the on-cell mutual capacitance touch sensor TS1 on a layer above the display front panel layer 301 on which the on-cell mutual capacitance touch sensor (electrostatic capacitance sensor) TS1 is provided, and a cover glass is provided above that. That is, the stack configuration 2 of the position detection device 2 shown in FIG. 15B is configured such that the TX electrode layer (TX sensor coil group 100) and the RX electrode layer (RX sensor coil group 200) are provided in separate layers.

[0079] In this configuration, a sensor 1 in which the on-cell mutual capacitance touch sensor TS1 shown in the first embodiment and an RX electrode layer (RX sensor coil group 200) are integrated is provided on the upper side of the display front panel layer 301. A magnetic shield plate may be provided below the TX electrode layer (TX sensor coil group 100).

[0080] <Actions and Effects> The position detection device 2 of this embodiment is a position detection device that detects the position of a pen using electromagnetic induction, and includes a TX electrode layer (TX sensor coil group 100) provided with a TX electrode that generates an alternating magnetic field, an RX electrode layer (RX sensor coil group 200) provided with a plurality of RX electrodes that detect a pen alternating magnetic field generated by a pen that accumulates energy by an alternating magnetic field, an on-cell mutual capacitance touch sensor TS1, and displays 300E, 300F that control display pixels and the blinking of the display pixels. The RX electrode layer (RX sensor coil group 200) is surrounded by a touch electrode formed by a mesh electrode pattern provided on the on-cell touch layer of the on-cell mutual capacitance touch sensor, and the RX electrode is formed in a straight line by connecting adjacent floating patterns in the extension direction of the RX electrode by jumper wiring, and the TX electrode layer (TX sensor coil group 100) is formed in a layer below the displays 300E, 300F. That is, in the position detection device 2 according to this embodiment, the TX electrode layer (TX sensor coil group 100) and the RX electrode layer (RX sensor coil group 200) are provided in separate layers. Moreover, in the position detection device 2 according to this embodiment, the RX electrode layer (the RX sensor coil group 200) is integrated into the on-cell mutual capacitance touch sensor TS1. Therefore, as shown in FIG. 13A, an RX electrode layer (RX sensor coil group 200) that operates with a smaller current than the TX electrode layer (TX sensor coil group 100) is integrated into a layer above the display front panel layer 301 on which the on-cell mutual capacitance touch sensor (electrostatic capacitance sensor) TS1 is provided, and the TX electrode layer (TX sensor coil group 100) is integrated into the TFT back panel layer 302 below the display front panel layer 301. This makes it possible to thin the stack structure and improve the design while maintaining performance as a position detection device without impairing the visibility of the display 300E.

[0081] As shown in FIG. 15B, in the position detection device 2 of this embodiment, the TX electrode layer (TX sensor coil group 100) is not provided on the TFT back panel layer 302, but is provided on the TX electrode layer (TX sensor coil group 100) below the display 300F, and an RX electrode layer (RX sensor coil group 200) is provided together with the on-cell mutual capacitance touch sensor TS1 on a layer above the display front panel layer 301 on which the on-cell mutual capacitance touch sensor (electrostatic capacitance sensor) TS1 is provided, and a cover glass is provided above them. That is, in the position detection device 2 according to this embodiment, the TX electrode layer (TX sensor coil group 100) and the RX electrode layer (RX sensor coil group 200) are provided in separate layers. Therefore, as shown in FIG. 15B, an RX electrode layer (RX sensor coil group 200) that operates with a smaller current than the TX electrode layer (TX sensor coil group 100) is integrated into a layer above the display front panel layer 301 on which the on-cell mutual capacitance touch sensor (capacitive sensor) TS1 is provided, and the TX electrode layer (TX sensor coil group 100) is provided below the display 300F. By providing the TX electrode layer (TX sensor coil group 100) below the display 300F, the stack structure can be made thinner and the design improved while maintaining its performance as a position detection device without impairing the visibility of the display 300F.

[0082] In the position detection device 2 of this embodiment, the TX sensor coils T0, T1, ... T15 are respectively constituted by TX electrodes 120... TX electrode 135, and a connection conductor 130 as a second connection portion that connects the TX electrodes 120 to 135 to each other, and is configured in a comb shape (SAW shape). In other words, in the position detection device 2 of this embodiment, by controlling the switch 11, for example, the TX electrodes 125 and 126 are bundled and connected to the TX terminal of the TX circuit 10, while the TX electrodes 128 and 129 are bundled and connected to the TX_inv terminal of the TX circuit 10. Furthermore, by controlling the TX terminal and the TX_inv terminal so that the amount of change in current is in opposite phase to each other, the TX circuit 10 can form a stronger transmission magnetic field between the bundle of TX electrodes 125 and 126 and the bundle of TX electrodes 128 and 129 (near TX electrode 127) than when they are not bundled and than when TX_inv is set to a fixed potential. In other words, by bundling multiple TX electrodes, it is possible to form a transmission magnetic field of the desired strength even if the TX electrode layer (TX sensor coil group 100) is formed using TX electrodes that originally have a narrow line width and high impedance.

[0083] <Fourth embodiment> The position detection device 3 according to this embodiment will be described with reference to FIGS. It should be noted that the configuration of the RX electrode layer (RX sensor coil group 200) is similar to that of the first to third embodiments, and therefore a detailed description thereof will be omitted.

[0084] <Stack configuration of position detection device 3> FIG. 16 shows a stack configuration including a flexible display that can be folded in a direction in which the upper surfaces of the cover films approach each other (valley fold direction) around a folding axis shown by a dashed line in the figure. As shown in FIG. 16, the stack configuration 1 of the position detection device 3 is a so-called on-cell type mutual capacitance type TS1 in which the display 300G is shown in the first embodiment, and the on-cell type mutual capacitance type TS1 is provided in a layer above the display front panel layer 301, and an RX electrode layer (RX sensor coil group 200) is integrated therein. That is, the stack configuration of the position detection device 3 shown in FIG. 16 is configured such that the TX electrode layer (TX sensor coil group 100) and the RX electrode layer (RX sensor coil group 200) are provided in separate layers. Moreover, the TX electrode layer (TX sensor coil group 100) is formed on one surface side of the lower surface of the support plate 400 on which it is mounted, the surface facing the pen.

[0085] As shown in FIG. 16, a TX electrode layer (TX sensor coil group 100) is directly provided on one surface of the lower surface of the support plate 400. Preferably, the support plate 400 is a rigid substrate made of a low-conductive material that does not affect electromagnetic induction and has rigidity such as a glass epoxy substrate (FR4, etc.), and the TX electrode layer (TX sensor coil group 100) is made of a conductive material such as copper, silver, or copper on one surface of the support plate 400 (the upper surface in FIG. 16). ) is provided by printing and mounting. A connector terminal on the FPC side is crimped to the pad group of the TX electrode layer (TX sensor coil group 100), and a controller is connected via the FPC. Also, as shown in FIG. 16, a magnetic shield plate may be provided below the TX electrode layer (TX sensor coil group 100).

[0086] <Configuration of TX Electrode Layer (TX Sensor Coil Group 100)> FIG. 17 is a diagram showing a configuration example of the TX electrode layer (TX sensor coil group 100). The configuration of the TX electrode layer (TX sensor coil group 100) shown in FIG. 17 is particularly effective when using a flexible display that can be bent as in the configuration example of FIG. 16.

[0087] The configuration shown in FIG. 17 is, for example, in FIG. 16, the TX electrode layer (TX sensor coil group 100) is mounted by printing on the lower surface side of the support plate 400 with respect to the pen.

[0088] As shown in FIG. 17, the TX electrode layer (TX sensor coil group 100) includes TX electrodes 120... TX electrodes 135 that respectively constitute TX sensor coils T0, T1,... T15, and connection conductors 130 that connect the TX electrodes 120 to TX electrodes 135 to each other. It is configured in a comb shape (SAW shape).

[0089] As shown in FIG. 17, the TX electrodes 120 to 135 are connected to the pad group 140. The pad group 140 of the TX electrode layer (TX sensor coil group 100) is pressure-bonded to connector terminals of an FPC (not shown), and pins of a controller corresponding to each terminal are connected via the FPC, and the pad group 140 is driven as a TX sensor coil by the controller.

[0090] <Actions and Effects> As described above, the position detection device 3 of this embodiment has a stack configuration including a foldable flexible display, and the display 300G is a so-called on-cell mutual capacitance touch sensor TS1, with the on-cell mutual capacitance TS1 being provided in a layer above the display front panel layer 301, and an RX electrode layer (RX sensor coil group 200) being integrated therein. That is, the position detection device 3 according to this embodiment has a configuration in which the TX electrode layer (TX sensor coil group 100) and the RX electrode layer (RX sensor coil group 200) are provided on separate layers. Moreover, the TX electrode layer (TX sensor coil group 100) is formed on the lower surface side of the support plate 400 on which it is mounted, relative to the pen. Therefore, it is possible to reduce the thickness of the stack structure and improve the design while maintaining the performance as a position detection device without impairing the visibility of the display 300G. In addition, the TX electrode layer (TX sensor coil group 100) is formed on the underside of the support plate 400 on which the pen is mounted, and the connector terminal on the FPC side is crimped onto the TX electrode layer (TX sensor coil group 100), and the controller is connected via the FPC. In other words, the upper surface of the support plate 400 remains flat against the pen, so even if the display 300G is attached to the top of the support plate 400 with an adhesive or the like, the flatness or inclination of the display 300G is not affected.

[0091] <Fifth embodiment> The position detection device 4 according to this embodiment will be described with reference to FIGS. It should be noted that the configuration of the RX electrode layer (RX sensor coil group 200) is similar to that of the first to fourth embodiments, and therefore a detailed description thereof will be omitted.

[0092] <Stack configuration 1 of position detection device 4> FIG. 18A shows a stack configuration including a flexible display with a split support plate. As in the fourth embodiment, the display 300G is a so-called on-cell mutual capacitance touch sensor TS1, and the on-cell mutual capacitance touch sensor TS1 is provided in a layer above the display front panel layer 301, and an RX electrode layer (RX sensor coil group 200) is integrated therein. That is, the stack configuration 1 of the position detection device 4 shown in FIG. 18A is configured such that the TX electrode layer (TX sensor coil group 100) and the RX electrode layer (RX sensor coil group 200) are provided in separate layers. The TX electrode layer (TX sensor coil group 100) is formed on the lower surface side of the support plates 400-1 and 400-2 to be mounted, relative to the pen.

[0093] In the configuration of FIG. 18A, the TX electrode layer (TX sensor coil group 100-1) is provided directly on the upper surface of the first support plate 400-1, and the TX electrode layer (TX sensor coil group 100-2) is provided directly on the upper surface of the second support plate 400-2. Preferably, the support plates 400-1, 400-2 are rigid substrates having rigidity such as glass epoxy substrates (e.g., FR4), and the TX electrode layer (TX sensor coil group 100-1) and the TX electrode layer (TX sensor coil group 100-2) are provided by printing a conductive material such as copper, silver, copper, etc. on one surface of the support plate 400 (the upper surface in FIG. 16A). On the lower surface sides of the first support plate 400-1 and the second support plate 400-2, there are a pad group or some TX sensor coil wirings that are printed and mounted, which are connected via vias to the TX electrode layers (TX sensor coil groups 100-1, 100-2) formed on the upper surface sides of the first support plate 400-1 and the second support plate 400-2, and are crimped to connector terminals for connecting to a flexible substrate. As shown in FIG. 16A, a magnetic shield plate may be provided on the lower side of the first support plate 400-1 and the second support plate 400-2 on which the TX electrode layer (TX sensor coil group 100-1) or the TX electrode layer (TX sensor coil group 100-2) is mounted.

[0094] <Stack configuration 2 of the position detection device 4> In the configuration of FIG. 18B, different from the configuration of FIG. 18A, the TX electrode layer (TX sensor coil group 100-1) or the TX electrode layer (TX sensor coil group 100-2) is directly provided on one surface of the lower side surfaces of the separated first support plate 400-1 and second support plate 400-2. That is, the stack configuration 2 of the position detection device 4 shown in FIG. 18B is configured such that the TX electrode layer (TX sensor coil group 100) and the RX electrode layer (RX sensor coil group 200) are provided in separate and spaced-apart layers. To the TX electrode layer (TX sensor coil group 100-1) and the TX electrode layer (TX sensor coil group 100-2), a controller is connected via an FPC that is crimped to a connector terminal on the FPC side. As shown in FIG. 18B, a magnetic shield plate may be provided on the lower side of the TX electrode layer (TX sensor coil group 100-1) and the TX electrode layer (TX sensor coil group 100-2).

[0095] <Configuration of the TX electrode layer (TX sensor coil group 100)> FIG. 19 is a diagram showing a configuration example of the TX electrode layer (TX sensor coil groups 100-1, 100-2). The configuration of the TX electrode layer (TX sensor coil groups 100, 100-2) shown in FIG. 19 is particularly effective when using a flexible display that can be bent like the configuration examples of FIGS. 18A and 18B.

[0096] In the configuration shown in FIG. 19, for example, in FIG. 18A or FIG. 18B, the support plate 400 is separated, and the TX electrode layer is formed on the upper or lower surface side of the separated support plates 400-1 and 400-2 with respect to the pen. Specifically, in the configuration of Figure 19, the TX electrode layer (TX sensor coil group 100) is composed of a first TX electrode layer (TX sensor coil group 100-1) mounted by printing on the support plate 400-1 of Figure 18A or Figure 18B, and a second TX electrode layer (TX sensor coil group 100-2) mounted by printing on the support plate 400-2. Also, for example, as shown in FIG. 18B, pad groups 140-1 and 140-2 are printed on the lower surface side of support plate 400-2 and are pressure-bonded to connector terminals that connect to a flexible substrate. In addition, a bending portion 400-3 which is a flexible member or structure may be provided between support plates 400-1 and 400-2, and this portion may be provided with a bent waist portion connecting conductor 131 which is made of a material and has a structure which makes it less likely to break when bent compared to connecting conductor 130 as the other first connecting portion.

[0097] As shown in FIG. 19, the TX electrode layer (TX sensor coil group 100) includes TX electrodes 120 to 135 which respectively constitute TX sensor coils T0, T1, to T15, and a connecting conductor 130 which connects the TX electrodes 120 to 135 to each other, and is configured in a comb shape (SAW shape).

[0098] As shown in FIG. 19, the TX electrodes 120 to 127 are connected to a first pad group 140-1, and the TX electrodes 128 to 135 are connected to a second pad group 140-2. The pad group 140 of the TX electrode layer (TX sensor coil group 100) is pressure-bonded to connector terminals of an FPC (not shown), and pins of a controller corresponding to each terminal are connected via the FPC, and the pad group 140 is driven as a TX sensor coil by the controller.

[0099] <Actions and Effects> The position detection device 4 of this embodiment has a stack configuration including a foldable flexible display, and the display 300G is a so-called on-cell mutual capacitance touch sensor TS1, and the on-cell mutual capacitance touch sensor TS1 is provided on a layer above the display front panel layer 301, and an RX electrode layer (RX sensor coil group 200) is integrated therein. On the other hand, a TX electrode layer (TX sensor coil group 100-1) or a TX electrode layer (TX sensor coil group 100-2) is provided directly on one surface of the lower side of the separated first support plate 400-1 and second support plate 400-2. That is, the stack configuration 2 of the position detection device 4 is configured such that the TX electrode layer (TX sensor coil group 100) and the RX electrode layer (RX sensor coil group 200) are provided in separate layers. Therefore, it is possible to make the stack structure thinner and improve the design while maintaining the performance as a position detection device without impairing the visibility of the display 300G. Also, the TX electrode layer (TX sensor coil groups 100-1, 100-2) is formed on the lower surface side of the first support plate 400-1 and the second support plate 400-2 to be mounted, relative to the pen. Furthermore, pad groups 140-1 and 140-2 are printed on the lower surface side of the support plate 400-2 and are pressure-bonded to connector terminals that connect to a flexible substrate. Therefore, the upper surfaces of the first support plate 400-1 and the second support plate 400-2 are structured to maintain flatness as much as possible, and even if the display 300G is adhered to the upper part of the first support plate 400-1 and the second support plate 400-2 with an adhesive or the like, the structure is unlikely to affect the flatness or inclination of the display 300G.

[0100] The position detection device 3 of this embodiment has a stack configuration including a bendable flexible display, and the display 300J is a so-called on-cell mutual capacitance touch sensor TS1, and the on-cell mutual capacitance touch sensor TS1 is provided in a layer above the display front panel layer 301, and an RX electrode layer (RX sensor coil group 200) is also provided. On the other hand, a TX electrode layer (TX sensor coil group 100-1) or a TX electrode layer (TX sensor coil group 100-2) is provided directly on one surface of the lower surface of the separated first support plate 400-1 and second support plate 400-2. That is, the stack configuration 3 of the position detection device 3 is configured such that the TX electrode layer (TX sensor coil group 100) and the RX electrode layer (RX sensor coil group 200) are provided in separate layers. Furthermore, connector terminals on the FPC side are crimped to the TX electrode layer (TX sensor coil group 100-1) and the TX electrode layer (TX sensor coil group 100-2), and a controller is connected via the FPC. Therefore, the performance as a position detection device can be maintained without impairing the visibility of the display 300J, and the stack structure can be made thin to improve the design. In addition, the TX electrode layer (TX sensor coil group 100-1, TX sensor coil group 100-2) is formed on the underside of the pen of the first support plate 400-1 and the second support plate 400-2 to be mounted, and the connector terminal on the FPC side is crimped to the TX electrode layer (TX sensor coil group 100-1, TX sensor coil group 100-2) and the controller is connected via the FPC. In other words, since the upper surfaces of the first support plate 400-1 and the second support plate 400-2 remain flat against the pen, even if the display 300J is adhered to the upper part of the first support plate 400-1 and the second support plate 400-2 with an adhesive or the like, the flatness or inclination of the display 300J is not affected.

[0101] In the position detection device 3 according to this embodiment, the support plate 400 is separated, and the TX electrode layer (TX sensor coil group 100) is formed on the upper or lower surface side of the separated support plates 400-1 and 400-2 relative to the pen. Specifically, the TX electrode layer (TX sensor coil group 100) has the configuration shown in Figure 19, and is composed of a first TX electrode layer (TX sensor coil group 100-1) mounted by printing on the support plate 400-1 of Figures 18A and 18B, and a second TX electrode layer (TX sensor coil group 100-2) mounted by printing on the support plate 400-2. In addition, the TX electrode layer (TX sensor coil group 100) of the position detection device 3 according to this embodiment includes TX electrodes 120, 135 which respectively constitute the TX sensor coils T0, T1, ... T15, and a connection conductor 130 as a second connection portion which connects the TX electrodes 120 to 135 to each other, and is configured in a comb shape (SAW shape). That is, in the TX electrode layer (TX sensor coil group 100) of the position detection device 3 according to this embodiment, by controlling the switch 11, for example, the TX electrodes 125 and 126 are bundled together and connected to the TX terminal of the TX circuit 10, while the TX electrodes 128 and 129 are bundled together and connected to the TX_inv terminal of the TX circuit 10. Furthermore, by controlling the TX terminal and the TX_inv terminal so that the amount of change in current is in opposite phase to each other, the TX circuit 10 can form a stronger transmission magnetic field between the bundle of TX electrodes 125 and 126 and the bundle of TX electrodes 128 and 129 (near TX electrode 127) than when they are not bundled and than when TX_inv is set to a fixed potential. In other words, by bundling multiple TX electrodes, it is possible to form an emission magnetic field of the desired strength even if the TX electrode layer (TX sensor coil group 100) is formed using TX electrodes with a narrow line width and high impedance.

[0102] <Variation 1> In the first embodiment, a sensor 1 is shown in which an RX electrode layer (RX sensor coil group 200) is integrated with an on-cell mutual capacitance touch sensor TS1. However, when performing pen detection by electromagnetic induction, the first sensor electrode (TX electrode for touch panel) 210 may be used as a TX electrode layer (TX sensor coil group 100) for performing pen detection by electromagnetic induction, thereby essentially forming a sensor in which an RX electrode layer (RX sensor coil group 200) is integrated with an on-cell mutual capacitance touch sensor TS1, and the RX electrode layer (RX sensor coil group 200) may be formed in a separate layer.

[0103] <Variation 2> In the above-described embodiment, in order to facilitate understanding of the description, the TX electrodes have been described as electrodes for transmitting a magnetic field, and the RX electrodes have been described as electrodes for detecting pen signals, with their functions uniquely defined; however, the TX electrodes may operate as TX electrodes for transmitting a magnetic field in a time-division manner, and then as RX electrodes for detecting pen signals on another axis (e.g., Y-axis) different from the arrangement axis (e.g., X-axis) of the RX electrodes for detecting pen signals. In addition, the TX electrodes in the above-described embodiments may be interpreted as first electrodes arranged side by side in a first direction, and the RX electrodes may be interpreted as second electrodes arranged side by side in a second direction.

[0104] The sensor 1, the sensor 1A, and the position detection devices 2 to 4 of the present invention can be realized by recording the processing of the TX circuit 10 and the like in a recording medium that can be read by a computer system, and reading and executing the program recorded in this recording medium into the TX circuit 10 and the like. The computer system here includes hardware such as an OS and peripheral devices.

[0105] Furthermore, "computer system" also includes the homepage providing environment (or display environment) if a WWW (World Wide Web) system is used. The above program may be transmitted from a computer system in which the program is stored in a storage device or the like to another computer system via a transmission medium, or by transmission waves in the transmission medium. Here, the "transmission medium" that transmits the program refers to a medium that has the function of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line.

[0106] The program may be for implementing some of the functions described above, or may be a so-called differential file (differential program) that can implement the functions described above in combination with a program already recorded in the computer system.

[0107] Although an embodiment of the present invention has been described in detail above with reference to the drawings, the specific configuration is not limited to this embodiment, and designs that do not deviate from the gist of the present invention are also included. [Explanation of symbols]

[0108] 1;Sensor 1A; sensor 2; Position detector 3; Position detector 4; Position detector 10;TX circuit 11; Switch 12; Switch 20;RX circuit 100: TX electrode layer (TX sensor coil group) 100A; TX electrode layer (TX sensor coil group) 100-1: First TX electrode layer 100-2: Second TX electrode layer 120;TX electrode 121;TX electrode 125;TX electrode 126;TX electrode 127;TX electrode 128;TX electrode 129;TX electrode 130;Connecting conductor 135;TX electrode 140; Pad group 140-1: First pad group 140-2: Second set of pads 200: RX electrode layer (RX sensor coil group) 300;display 300B;Display 300C;Display 300D;Display 300E;Display 300F;Display 300G; Display 300J;Display 300K; Display 300L; Display AA; Active Area

Claims

1. an on-cell mutual capacitance touch sensor; an RX electrode layer provided with a plurality of RX electrodes for detecting a pen alternating magnetic field generated by a pen that has stored energy due to the alternating magnetic field from a TX electrode layer provided with a TX electrode that generates an alternating magnetic field for detecting the position of the pen using electromagnetic induction; Including, The RX electrode layer is surrounded by a touch electrode formed by a mesh electrode pattern provided in the on-cell touch layer of the on-cell type mutual capacitance touch sensor, and adjacent floating patterns in the extension direction of the RX electrode are connected by jumper wiring to form the RX electrode wiring in a straight line.

2. 2. The sensor according to claim 1, wherein one end of the linearly formed RX electrode wiring is connected to a circuit section that receives a pen signal which is a response alternating magnetic field and acquires a level of the pen signal, and the other end of the RX electrode wiring is connected to a jumper wire.

3. The on-cell type mutual capacitance touch sensor includes a touch sensor transmission electric field generator, The sensor according to claim 1 , wherein the TX electrode layer shares a sending electric field generating section for the touch sensor.

4. an on-cell mutual capacitance touch sensor; An electromagnetic induction sensor; Equipped with A sensor in which a first electrode group constituting the on-cell type mutual capacitance touch sensor and a second electrode group constituting the electromagnetic induction type sensor are composed of three or less layers, including a layer in which at least a portion of the first electrode group and a portion of the second electrode group are arranged in a mixed manner.

5. a first layer on which at least the first electrode group constituting the on-cell type mutual capacitance touch sensor is arranged; a second layer provided with auxiliary wiring that connects between a portion of the first electrode group and a portion of the second electrode group that constitutes the electromagnetic induction type sensor; a third layer on which another part of the second electrode group constituting the electromagnetic induction type sensor is provided; and 5. The sensor of claim 4, comprising:

6. The sensor according to claim 5 , wherein the auxiliary wiring includes a jumper wiring or a bridge wiring.

7. a shared layer for sharing an electrode group extending in a first direction of the on-cell type mutual capacitance touch sensor and a part of the electrode group of the second electrode group that generates an alternating magnetic field for detecting a position of a pen in the electromagnetic induction sensor; a mixed layer in which a part of the second electrode group, which detects a pen alternating magnetic field generated by a pen that stores energy due to the alternating magnetic field from a part of the second electrode group, and an electrode group extending in a second direction intersecting the first direction of the on-cell type mutual capacitance touch sensor are connected via auxiliary wiring; 5. The sensor of claim 4, comprising:

8. The sensor according to claim 7 , wherein the auxiliary wiring includes a jumper wiring or a bridge wiring.

9. 9. The sensor according to claim 8, wherein a coil group formed by connecting other electrodes of the second electrode group by the auxiliary wiring has a comb shape.

10. a sensor electrode of the on-cell mutual capacitance touch sensor including a floating pattern and a peripheral portion surrounding the floating pattern from the outside; The sensor described in claim 9, wherein a linear coil group including the floating pattern and the auxiliary wiring extending from the open end side to the terminal end side of the comb-shaped coil group is arranged so as not to overlap in a planar view with a linear coil group including the peripheral portion and the auxiliary wiring extending in a second direction intersecting the first direction of the on-cell mutual capacitance touch sensor.

11. The sensor described in claim 10, wherein the peripheral portions of the sensor electrodes adjacent in the first direction are connected to each other by a connection portion composed of multiple wirings or wide wirings, and other electrode groups of the second electrode group have floating patterns of the sensor electrodes adjacent in the extension direction connected to each other by multiple auxiliary wirings.

12. The sensor according to claim 11 , wherein a plurality of wirings are added to the floating pattern or to a periphery of the floating pattern in the sensor electrode.

13. A position detection device that detects the position of a pen using electromagnetic induction, a TX electrode layer provided with a TX electrode for generating an alternating magnetic field; an RX electrode layer having a plurality of RX electrodes arranged thereon for detecting a pen alternating magnetic field generated by a pen that has stored energy due to the alternating magnetic field; an on-cell mutual capacitance touch sensor; a display for controlling display pixels and blinking of said display pixels; Including, The RX electrode layer is surrounded by a touch electrode formed by a mesh electrode pattern provided on the on-cell touch layer of the on-cell type mutual capacitance touch sensor, and the RX electrode is formed in a straight line by connecting adjacent floating patterns in the extension direction of the RX electrode with jumper wiring.

14. The position detection device according to claim 13 , further comprising a support plate provided below the pen and away from the display, the TX electrode layer being formed on at least one of the surfaces of the support plate.

15. The position detection device according to claim 14 , wherein the TX electrode layer is formed in a comb shape.

16. The position detection device according to claim 15 , further comprising a connection portion that connects one end of the TX electrodes of the TX electrode layer.

17. 17. The position detection device according to claim 14, wherein the TX electrode layer is formed on a lower surface side of the support plate with respect to the pen.

18. 18. The position detection device according to claim 17, wherein a pad group or a part of the TX sensor coil wiring is formed on the lower surface side of the support plate and is crimped to a connector terminal that connects to a flexible board.

19. A position detection device as described in claim 14 or 16, wherein the support plate is separated, the TX electrode layer is formed on the upper surface side of the separated support plate relative to the pen, and a group of pads or a portion of the TX sensor coil wiring is formed on the lower surface side of the separated support plate.

20. The position detection device according to claim 19, wherein the pad group is connected to the underside of the support plate through vias and the TX electrode layer formed on the upper surface side of the separated support plate, and is crimped to a connector terminal that connects to a flexible substrate.

21. 17. The position detection device according to claim 14, wherein the support plate is separated, and the TX electrode layer is formed on a lower surface side of the separated support plate with respect to the pen.

22. The position detection device according to claim 13 , further comprising a connecting portion, not having a mesh structure, that connects one end of the RX electrodes formed in a straight line outside an active area.

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