Touch sensor board

Abstract

The touch sensor board of the embodiment of the present invention is a touch sensor board in which a plurality of driving electrodes and a plurality of receiving electrodes are arranged in the same layer, the plurality of receiving electrodes are arranged along a plurality of rows and columns, the plurality of driving electrodes are arranged on both sides with at least one receiving electrode as a reference, and the driving electrodes arranged on the left side and the driving electrodes arranged on the right side are electrically connected to each other via the receiving electrodes. The present invention has the advantage of being able to improve and prevent the left-right splitting of the touch signal output in the floating state. Therefore, it has the advantage of being able to avoid malfunction of the touch sensor board and the touch input device including the same.

Description

Technical Field

[0001] The present invention relates to a touch sensor panel, and more particularly to a touch sensor panel capable of improving a phenomenon in which a touch signal outputted is split when touching with one finger without holding a device having the touch sensor panel. Background Art

[0002] Various input devices are used to operate a computing system. For example, input devices such as buttons, keys, joysticks, and touch screens are used. Since touch screens are simple and easy to operate, the utilization rate of touch screens in operating computing systems has increased.

[0003] A touch screen may constitute a touch surface of a touch input device including a touch sensor panel, which may be a transparent panel with a touch-sensitive surface. Such a touch sensor panel is attached to the front of a display screen, and the touch-sensitive surface may cover the visible surface of the display screen. A user may operate a computing system by simply touching the touch screen with a finger or the like. Typically, the computing system is able to recognize a touch and a touch location on the touch screen and interpret the touch, and then perform operations accordingly.

[0004] The touch sensor board applies a driving signal to the driving electrode and determines whether a touch is applied based on the signal input through the receiving electrode. The driving electrode and the receiving electrode can be formed on different layers or on the same layer. An example of forming the driving electrode and the receiving electrode on the same layer is disclosed in U.S. Patent Publication No. US2013 / 0181942. When the driving electrode and the receiving electrode are formed on different layers, the cost increases, so it is preferably formed on the same layer. However, even if the driving electrode and the receiving electrode are implemented on the same layer, it is still necessary to reduce the number of wirings, reduce noise by making various changes to the electrode configuration of the touch sensor board with a reduced number of wirings, or suppress the occurrence of unnecessary signals.

[0005] Furthermore, when the driving electrodes and the receiving electrodes are implemented in the same layer, compared with touching a device such as a smartphone equipped with a touch sensor panel while holding the touch sensor panel with the hand, when the touch sensor panel is touched without holding the smartphone with the hand, the output touch signal changes due to LGM (low ground mass). In particular, when the user does not hold the device with the hand (hereinafter referred to as the floating state), the output touch signal splits to the left or right or up or down. Due to the left-right splitting or up-and-down splitting of the output touch signal, the device mistakenly judges a touch input by the user as two or more multi-touches, which may cause the device to malfunction unexpectedly by the user. Summary of the invention

[0006] Technical issues

[0007] The technical problem to be solved by the present invention is to provide a touch sensor panel capable of improving the left-right splitting of touch signals outputted by a touch sensor panel in a floating state in which driving electrodes and receiving electrodes are configured on the same layer.

[0008] In addition, a touch sensor panel is provided that can improve the vertical splitting of a touch signal outputted in a floating state by a touch sensor panel in which a driving electrode and a receiving electrode are arranged on the same layer.

[0009] Technical Solution

[0010] A touch sensor board according to an embodiment of the present invention is a touch sensor board in which a plurality of driving electrodes and a plurality of receiving electrodes are arranged on the same layer, the plurality of receiving electrodes are arranged along a plurality of rows and columns, the plurality of driving electrodes are arranged on both sides with each receiving electrode as a reference and at least one is configured for each receiving electrode, and the driving electrodes arranged on the left side and the driving electrodes arranged on the right side are electrically connected to each other via the receiving electrodes.

[0011] A touch sensor board according to another embodiment of the present invention is a touch sensor board having a plurality of driving electrodes and a plurality of receiving electrodes arranged on the same layer, wherein the plurality of driving electrodes are arranged in a plurality of rows and columns, and the plurality of receiving electrodes are arranged so that at least one is configured on each side with each driving electrode as a reference, and the receiving electrodes arranged on the left side and the receiving electrodes arranged on the right side are electrically connected to different wirings across the driving electrodes.

[0012] A touch sensor panel according to another embodiment of the present invention is a touch sensor panel including a plurality of first electrodes arranged in a first direction and a second direction on the same layer and a plurality of second electrodes arranged in the first direction and the second direction, wherein the plurality of first electrodes include at least a 1a electrode and a 1b electrode arranged in the second direction, the 1a electrode and the 1b electrode being electrically connected to different wirings and separated, the plurality of second electrodes including a plurality of different 2a electrodes arranged adjacent to the 1a electrode and a plurality of different 2b electrodes arranged adjacent to the 1b electrode, the 2a electrodes being arranged adjacent to the 1b electrode and the plurality of second electrodes being arranged adjacent to the 1b electrode, the plurality of second electrodes being arranged adjacent to the 1a electrode and the plurality of second electrodes being arranged adjacent to the 1b electrode, the plurality of second electrodes being arranged adjacent to the 1a electrode and the plurality of second electrodes being arranged adjacent to the 1b electrode, the plurality of second electrodes being arranged adjacent to the 1b electrode and the plurality of second electrodes being arranged adjacent to the 1a electrode and the plurality of second electrodes being arranged adjacent to the 1b electrode, the plurality of second electrodes being arranged adjacent to the 1a electrode and the plurality of second electrodes being arranged adjacent to the 1b electrode, the plurality of second electrodes being arranged adjacent to the 1b electrode and the plurality of second electrodes being arranged adjacent to the 1b electrode, ... The electrode and the 2b electrode are electrically connected to each other through wiring in a one-to-one correspondence, mutual capacitance is generated between each of the 2a electrodes and the 1a electrode, and the mutual capacitance is generated between each of the 2b electrodes and the 1b electrode, and the touch window area is configured to cover the first number of first electrodes continuous in the first direction among the multiple first electrodes on the touch sensor board and the second number of second electrodes continuous in the second direction relative to each of the first number of first electrodes, and the multiple second electrodes are arranged to meet the condition that the same second electrode is not continuously configured in the second direction in the touch window area.

[0013] A touch sensor panel according to another embodiment of the present invention is a touch sensor panel including a plurality of first electrodes arranged in a first direction and a second direction on the same layer and a plurality of second electrodes arranged in the first direction and the second direction, the plurality of first electrodes including a 1a electrode and a 1b electrode arranged at least in the second direction, the 1a electrode and the 1b electrode being electrically connected to different wirings and separated, the plurality of second electrodes including a plurality of different 2a electrodes arranged adjacent to the 1a electrode and a plurality of different 2b electrodes arranged adjacent to the 1b electrode, the 2a electrodes and the 2b electrodes being electrically connected to each other through wirings in a one-to-one correspondence, mutual capacitance being generated between each of the 2a electrodes and the 1a electrode, and mutual capacitance being generated between each of the 2b electrodes and the 1b electrode, a touch window region being configured to cover the first electrodes included in the first length of the plurality of first electrodes and the second electrodes included in the second length of the plurality of second electrodes on the touch sensor panel, and the plurality of second electrodes being arranged to satisfy a condition that the same second electrode is not continuously arranged in the second length direction in the touch window region.

[0014] Technical Effects

[0015] The touch sensor panel according to the embodiment of the present invention has the advantage of improving and preventing the left-right split of the touch signal output in the floating state, and thus has the advantage of avoiding malfunction of the touch sensor panel and the touch input device including the same.

[0016] In addition, the invention has the advantage of being able to improve and prevent the upper and lower splitting of the touch signal output in the floating state, and therefore has the advantage of being able to avoid malfunction of the touch sensor panel and the touch input device including the same. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1a This is a diagram of the touch sensor board. Figure 1b to Figure 1d A schematic diagram of a configuration of touch sensors implemented in different layers or touch sensors implemented in the same layer;

[0018] Figure 2 The present invention is an example of a touch sensor panel in which a touch signal is split to the left and right, and is a schematic diagram briefly showing an arrangement structure of a plurality of driving electrodes and a plurality of receiving electrodes;

[0019] Figures 3 to 7 It is used to describe Figure 2 Schematic diagram of left-right split phenomenon of touch signal outputted when a finger touches a part of the touch sensor panel in a floating state of the touch sensor panel device shown in FIG.

[0020] Figure 8a FIG. 1 is a schematic diagram showing only a portion of the arrangement structure of the driving electrodes and the receiving electrodes of the touch sensor panel according to the first embodiment. Figure 8b The conductive bar contact of 15 (phi) is shown Figure 8a Experimental data showing that left-right splitting is improved in the case of a touch sensor board in a floating state;

[0021] Figure 9a FIG. 1 is a schematic diagram showing only a portion of the arrangement structure of the driving electrodes and the receiving electrodes of the touch sensor panel according to the second embodiment. Figure 9b It shows that the conductive rod of 15 (phi) is Figure 9a Experimental data showing improvement in left-right splitting when contact is made while the touch sensor panel is in a floating state;

[0022] Fig.10a FIG. 1 is a schematic diagram showing only a portion of the arrangement structure of the driving electrodes and the receiving electrodes of the touch sensor panel according to the third embodiment. Fig.10b It shows that the conductive rod of 15 (phi) is Fig.10a Experimental data showing improvement in left-right splitting when contact is made while the touch sensor panel is in a floating state;

[0023] Fig.11a is a schematic diagram showing a part of the arrangement structure of the driving electrodes and the receiving electrodes of the touch sensor panel according to the fourth embodiment, Fig.11b It shows that the conductive rod of 15 (phi) is Fig.11a Experimental data showing improvement in left-right splitting when contact is made while the touch sensor panel is in a floating state;

[0024] Fig.12a FIG. 1 is a schematic diagram showing a part of the arrangement structure of the driving electrodes and the receiving electrodes of the touch sensor panel according to the fifth embodiment, Figure 12b It shows that the conductive rod of 15 (phi) is Fig.12a Experimental data showing improvement in left-right splitting when contact is made while the touch sensor panel is in a floating state;

[0025] Fig.13a is a schematic diagram showing a part of the arrangement structure of the driving electrodes and the receiving electrodes of the touch sensor panel according to the sixth embodiment, Fig.13b It shows that the conductive rod of 15 (phi) is Fig.13a The experimental data showing that left-right splitting is improved when contact is made while the touch sensor panel is in a floating state is shown;

[0026] Fig.14a FIG. 1 is a schematic diagram showing a part of the arrangement structure of the driving electrodes and the receiving electrodes of the touch sensor panel according to the seventh embodiment, Fig.14b It shows that the conductive rod of 15 (phi) is Fig.14a The experimental data showing that left-right splitting is improved when contact is made while the touch sensor panel is in a floating state is shown;

[0027] Fig.15 It is used to describe Figure 2 Schematic diagram of the up-and-down split phenomenon of the touch signal output when a finger touches a part of the touch sensor panel when the touch sensor panel device shown in FIG. is in a floating state;

[0028] Fig.16 It is used to illustrate Figure 8a to Figure 8b A schematic diagram of the up-down split phenomenon occurring in the touch sensor board of the first embodiment is shown;

[0029] Fig.17 is a schematic diagram showing a touch sensor board capable of alleviating or preventing the up-and-down split phenomenon;

[0030] Fig.18 It is shown Fig.17 A schematic diagram of a modified example of the touch window area w shown;

[0031] Fig.19 It is used to illustrate Figure 11a to Figure 11b A schematic diagram of the up-and-down split phenomenon occurring in the touch sensor board of the fourth embodiment is shown;

[0032] Fig. 20 It is used to illustrate Figure 12a to Figure 12b A schematic diagram of the up-down split phenomenon occurring in the touch sensor board of the fifth embodiment;

[0033] Fig.21 (a) to (f) are schematic diagrams for explaining how to reduce the LGM interference signal by the number of unit cells constituting the same driving electrode TX and the number of unit cells constituting the same receiving electrode RX arranged in a touch window area of ​​a predetermined size. DETAILED DESCRIPTION

[0034] The present invention is described in detail below with reference to the accompanying drawings that illustrate specific embodiments that can implement the present invention. These embodiments are described in detail so that those skilled in the art can implement the present invention. It should be understood that the various embodiments of the present invention are different, but do not need to be mutually exclusive. For example, the specific shapes, structures and features described herein can be implemented by other embodiments without exceeding the spirit and scope of the present invention in one embodiment. In addition, it should be understood that the position or configuration of the individual constituent elements in each disclosed embodiment can be changed without exceeding the spirit and scope of the present invention. Therefore, the following specific description is not for the purpose of limitation. If properly explained, the scope of the present invention depends on the technical solution and the scope equivalent to the technical solution. Similar figure marks in the drawings represent the same or similar functions in various aspects.

[0035] A touch input device according to an embodiment of the present invention will be described below with reference to the drawings. A capacitive touch sensor panel 1 is exemplified below, but the same or similar application can be applied to a touch sensor panel 1 that can detect a touch position in any manner.

[0036] Figure 1a FIG. 1 is a schematic diagram of a capacitive touch sensor 10 included in a touch sensor panel 1 of a general touch input device 1000 and its operation structure. Figure 1a The touch sensor 10 includes a plurality of driving electrodes TX1 to TXn and a plurality of receiving electrodes RX1 to RXm, and may include a driving unit 12 for applying driving signals to the plurality of driving electrodes TX1 to TXn for the operation of the touch sensor 10, and a sensing unit 11 for receiving sensing signals including information on the amount of capacitance change that changes with the touch of the touch surface from the plurality of receiving electrodes RX1 to RXm to detect touch and touch position.

[0037] like Figure 1a As shown, the touch sensor 10 may include a plurality of driving electrodes TX1 to TXn and a plurality of receiving electrodes RX1 to RXm. Figure 1a The plurality of driving electrodes TX1 to TXn and the plurality of receiving electrodes RX1 to RXm of the touch sensor 10 are shown to form an orthogonal array, but the present invention is not limited thereto, and the plurality of driving electrodes TX1 to TXn and the plurality of receiving electrodes RX1 to RXm may have any dimension and application arrangement such as diagonal lines, concentric circles, and three-dimensional random arrangement. Wherein, n and m are positive integers, and may have the same or different values, and may vary according to the implementation.

[0038] The plurality of driving electrodes TX1 to TXn and the plurality of receiving electrodes RX1 to RXm may be arranged to cross each other. The driving electrodes TX may include a plurality of driving electrodes TX1 to TXn extending in a first axis direction, and the receiving electrodes RX may include a plurality of receiving electrodes RX1 to RXm extending in a second axis direction crossing the first axis direction.

[0039] like Figure 1b As shown, the plurality of driving electrodes TX1 to TXn and the plurality of receiving electrodes RX1 to RXm may be formed on different layers. For example, any one of the plurality of driving electrodes TX1 to TXn and the plurality of receiving electrodes RX1 to RXm may be formed on the upper surface of the display panel (not shown), and the other one may be formed under the cover described below or formed inside the display panel (not shown).

[0040] And, if Figure 1c and Figure 1d As shown, in the touch sensor 10 according to the embodiment of the present invention, the plurality of driving electrodes TX1 to TXn and the plurality of receiving electrodes RX1 to RXm may be formed on the same layer. For example, the plurality of driving electrodes TX1 to TXn and the plurality of receiving electrodes RX1 to RXm may be formed on the upper surface of a display panel.

[0041] A plurality of driving electrodes TX1 to TXn and a plurality of receiving electrodes RX1 to RXm may be formed of a transparent conductive material (for example, indium tin oxide (ITO: Indium Tin Oxide) or antimony tin oxide (ATO: Antimony Tin Oxide) composed of tin oxide (SnO2) and indium oxide (In2O3). However, this is only an example, and the driving electrode TX and the receiving electrode RX may also be formed of other transparent conductive materials or non-transparent conductive materials. For example, the driving electrode TX and the receiving electrode RX may be formed to contain at least any one of silver ink, copper, nano silver, and carbon nanotube (CNT: Carbon Nanotube). Furthermore, the driving electrode TX and the receiving electrode RX may be formed of a metal mesh.

[0042] The driving unit 12 of the embodiment of the present invention may apply a driving signal to the driving electrodes TX1 to TXn. In the embodiment of the present invention, the driving signal may be applied to the first driving electrode TX1 to the nth driving electrode TXn one at a time in sequence. This driving signal application process may be repeated again. However, this is only an example, and according to the embodiment, the driving signal may be applied to a plurality of driving electrodes at the same time.

[0043] The sensing unit 11 can receive a sensing signal including information about the capacitance (Cm) 14 generated between the driving electrodes TX1 to TXn to which the driving signal is applied and the receiving electrodes RX1 to RXm through the receiving electrodes RX1 to RXm, thereby detecting the presence or absence of a touch and the touch position. For example, the sensing signal can be a signal in which the driving signal applied to the driving electrode TX is coupled through the capacitance (Cm) 14 generated between the driving electrode TX and the receiving electrode RX. As described above, the process of sensing the driving signal applied to the first driving electrode TX1 to the nth driving electrode TXn through the receiving electrodes RX1 to RXm can be referred to as scanning the touch sensor 10.

[0044] For example, the sensing unit 11 may include a receiver (not shown) connected to each receiving electrode RX1 to RXm through a switch. The switch is turned on during the period of sensing the signal of the corresponding receiving electrode RX so that the receiver can sense the sensing signal from the receiving electrode RX. The receiver may be configured to include an amplifier (not shown) and a feedback capacitor that is combined between the negative (-) input terminal of the amplifier and the output terminal of the amplifier, that is, the feedback path. Here, the positive (+) input terminal of the amplifier may be connected to ground. In addition, the receiver may further include a reset switch connected in parallel with the feedback capacitor. The reset switch may reset the conversion from current to voltage performed by the receiver. The negative input terminal of the amplifier is connected to the corresponding receiving electrode RX, and may be converted into a voltage by integration after receiving a current signal including information about the capacitance (Cm) 14. The sensing unit 11 may further include an analog-to-digital converter (not shown, analog to digital converter, ADC) that converts the data integrated by the receiver into digital data. Subsequently, the digital data is input to a processor (not shown) and can be processed to obtain touch information for the touch sensor 10. The sensing unit 11 may include an ADC and a processor in addition to the receiver.

[0045] The control unit 13 can perform the function of controlling the actions of the driving unit 12 and the sensing unit 11. For example, the control unit 13 can generate a driving control signal and send it to the driving unit 12 so that the driving signal is applied to the preset driving electrode TX at a predetermined time. In addition, the control unit 13 can generate a sensing control signal and send it to the sensing unit 11 so that the sensing unit 11 receives the sensing signal from the preset receiving electrode RX at a predetermined time and performs a preset function.

[0046] exist Figure 1aIn the figure, the driving unit 12 and the sensing unit 11 may constitute a touch detection device (not shown) capable of detecting whether the touch sensor 10 is touched and the touch position. The touch detection device may further include a control unit 13. The touch detection device may be integrated into a touch sensing IC (touch sensing Integrated Circuit). The driving electrode TX and the receiving electrode RX included in the touch sensor 10 may be connected to the driving unit 12 and the sensing unit 11 included in the touch sensing IC, for example, via a conductive trace and / or a conductive pattern printed on a circuit board. The touch sensing IC may be located on a circuit board printed with a conductive pattern, for example, on a touch circuit board (hereinafter referred to as a "touch PCB"). According to an embodiment, the touch sensing IC may be mounted on a mainboard for the touch input device 1000 to work.

[0047] As described above, each intersection of the driving electrode TX and the receiving electrode RX generates a capacitance (Cm) of a predetermined value, and the value of this capacitance can change when an object such as a finger approaches the touch sensor 10. Figure 1a In the embodiment, the capacitance may represent mutual capacitance (Cm). The sensing unit 11 may sense whether the touch sensor 10 is touched and / or the touch position by sensing such electrical characteristics. For example, it may sense whether the surface of the touch sensor 10 formed by a two-dimensional plane formed by a first axis and a second axis is touched and / or its position.

[0048] More specifically, when the touch sensor 10 is touched, the position of the second axis direction of the touch can be detected by detecting the driving electrode TX to which the driving signal is applied. Similarly, when the touch sensor 10 is touched, the capacitance change can be detected from the receiving signal received by the receiving electrode RX to detect the position of the first axis direction of the touch.

[0049] like Figure 1c and Figure 1d , when the driving electrodes and receiving electrodes are arranged on the same layer, the number of wiring lines may increase. Figure 2 A touch sensor panel in a form in which the number of wirings is reduced is described, and the reason why a touch signal output from the touch sensor panel in a form in which the number of wirings is reduced is split to the left and right is explained.

[0050] Figure 2 This is an example of a touch sensor panel in which a touch signal is split to the left and right, and is a schematic diagram showing that a plurality of driving electrodes and a plurality of receiving electrodes are configured in a matrix form.

[0051] like Figure 2As shown, in the conventional touch sensor panel, a plurality of driving electrodes TX and a plurality of receiving electrodes RX are arranged in a matrix form on the same layer.

[0052] More specifically, for a plurality of columns, a plurality of receiving electrodes RX are arranged at intervals in odd-numbered columns, and a plurality of driving electrodes TX are arranged at intervals in even-numbered columns.

[0053] An electrode group G including a receiving electrode RX and a plurality of driving electrodes TX is arranged in a plurality along a first direction (or a row direction, or a left-right direction). Figure 2 As shown, the number of driving electrodes TX included in one electrode group G may be four, but the present invention is not limited thereto. The number of driving electrodes TX may be three or five or more.

[0054] An electrode group G includes a plurality of unit cells U. Among them, a unit cell U can be composed of a driving electrode TX and a portion of a receiving electrode RX adjacent to the driving electrode TX in the first direction (or row direction, or left-right direction). Figure 2 In the case of , one electrode group G may be composed of four unit cells U. Specifically, the area of ​​the unit cell U may be approximately 4 mm in the column direction (or vertical direction) and 4 mm in the row direction (or horizontal direction).

[0055] The size of the driving electrode TX is smaller than that of the receiving electrode RX. For example, the driving electrode TX may be a rectangular shape of approximately 2 mm in horizontal direction and 4 mm in vertical direction, and the receiving electrode RX may be a rectangular shape of approximately 2 mm in horizontal direction and 16 mm in vertical direction. The horizontal length and vertical length may be appropriately changed according to the design.

[0056] for Figure 2 In the touch sensor board shown in the figure, the numbers marked on the driving electrodes TX and the receiving electrodes RX represent the numbers of the driving electrodes TX and the receiving electrodes RX, and the driving electrodes TX with the same number are electrically connected to each other through wiring (or conductive lines). The same driving signal is applied to the driving electrodes TX with the same number at the same time. The receiving electrodes RX with the same number are also electrically connected to each other through wiring (or conductive lines).

[0057] Figures 3 to 7 It is used to describe Figure 2 Schematic diagram of left-right splitting of a touch signal output when a predetermined object (e.g., a finger) touches a portion of the touch sensor panel when the device having the touch sensor panel is in a floating state. The floating state of the device having the touch sensor panel is a state in which the device is in a low ground mass (LGM) state, for example, indicating that the device is not grasped by a user's hand.

[0058] Figure 3This is an example of finger (thumb) touching Figure 2 A schematic diagram of the situation within any area A of the touch sensor panel is shown. Figure 3 In the example, it is assumed that the finger touches with a width of 20 mm in the first direction (or the row direction or the left-right direction). Although touching with a width of 20 mm is a somewhat extreme case, as long as the problem occurring in this state can be eliminated, the problems occurring in other states can also be eliminated.

[0059] Figure 4 It is used to illustrate Figure 3 In the state shown, a driving signal is applied to the plurality of first driving electrodes TX1 , and a sensing signal is output from the plurality of first receiving electrodes RX1 , which is a schematic diagram of a final touch signal output through the first receiving end.

[0060] See also Figure 3 and Figure 4 , a predetermined capacitance (Cm) is formed between the first driving electrode TX1-a located on the left side and the two first receiving electrodes RX1-a and RX1-b located on both sides of the first driving electrode TX1-a, but since the finger does not touch the first driving electrode TX1-a and the two first receiving electrodes RX1-a and RX1-b, no capacitance change occurs from the two first receiving electrodes RX1-a and RX1-b. Therefore, the normal touch signal output from the two first receiving electrodes RX1-a and RX1-b is 0.

[0061] On the contrary, if the driving signal is applied to the first driving electrode TX1-a located on the left side, the first driving electrode TX1-b located between the two third receiving electrodes RX3 is also applied with the same driving signal at the same time. At this time, a coupling capacitance is formed between the first driving electrode TX1-b and the finger. At this time, when the finger is in the LGM state, the driving signal applied to the first driving electrode TX1-b is transmitted to the three first receiving electrodes RX1-b, RX1-c, and RX1-d that are in contact with the finger. That is, the finger in the LGM state forms a current path. Therefore, an LGM interference signal (-diff) having a sign opposite to that of the normal touch signal is output from each of the three first receiving electrodes RX1-b, RX1-c, and RX1-d that are in contact with the finger. The reason why the LGM interference signal has an opposite sign to that of the normal touch signal is that the mutual capacitance (Cm) decreases when the finger contacts the normal touch signal in a state where a predetermined mutual capacitance (Cm) is formed between the driving electrode and the receiving electrode, while the LGM interference signal has an opposite sign because the coupling capacitance is generated by the contact of the finger in the floating state. In addition, the size of the normal touch signal and the size of the LGM interference signal may be the same or different, so for the sake of convenience in the following description, it is assumed that the normal touch signal is 1 (diff) and the LGM interference signal is -1 (diff).

[0062] The first receiving end adds up all the signals output from the four first receiving electrodes RX1-a, RX1-b, RX1-c, and RX1-d to output a touch signal. Since there is no change in capacitance in the first receiving electrode RX1-a, it outputs 0 (diff). The remaining three first receiving electrodes RX1-b, RX1-c, and RX1-d respectively output LGM interference signals (-1 (diff)). Therefore, the first receiving end finally outputs a touch signal corresponding to -3 (diff).

[0063] Figure 5 It is used to illustrate Figure 3 Schematic diagram of a touch signal output through the first receiving end when a driving signal is applied to multiple ninth driving electrodes TX9-a, TX9-b and a sensing signal is output from multiple first receiving electrodes RX1-a, RX1-b, RX1-c, and RX1-d in the state.

[0064] See also Figure 3 and Figure 5 A predetermined capacitance (Cm) is formed between the 9th driving electrode TX9-a located on the left side and the two 1st receiving electrodes RX1-c and RX1-d located on both sides of the 9th driving electrode TX9-a, but due to the contact of the finger, the two 1st receiving electrodes RX1-c and RX1-d respectively output normal touch signals (1(diif)).

[0065] In addition, if the driving signal is applied to the 9th driving electrode TX9-a, a coupling capacitor is formed between the 9th driving electrode TX9-a and the finger. At this time, when the finger is in the LGM state, the driving signal applied to the 9th driving electrode TX9-a is transmitted to the three first receiving electrodes RX1-b, RX1-c, and RX1-d that are in contact with the finger. That is, the finger in the LGM state forms a current path. Therefore, the LGM interference signal (-1 (diff)) with the opposite sign to the normal touch signal is output from the three first receiving electrodes RX1-b, RX1-c, and RX1-d that are in contact with the finger.

[0066] At the first receiving end, all the signals output from the four first receiving electrodes RX1-a, RX1-b, RX1-c, and RX1-d are added together and output, and the two first receiving electrodes RX1-c and RX1-d respectively output normal touch signals (1(diff)), and each of the three first receiving electrodes RX1-b, RX1-c, and RX1-d also simultaneously outputs an LGM interference signal (-1(diff)), so the first receiving end ultimately outputs a touch signal corresponding to -1(diff).

[0067] Figure 6 It is comprehensive Figure 4 and Figure 5 conditions and other conditions.

[0068] See also Figure 6 The first row of the table is Figure 4 In the case of the first driving electrode TX1-a, TX1-b, the driving signal is applied to the first driving electrodes TX1-a, TX1-b, and the first receiving electrodes RX1-a, RX1-b, RX1-c, RX1-d output the touch signal. The third row is Figure 5 In the situation, the driving signal is applied to the plurality of ninth driving electrodes TX9 - a and TX9 - b , and the touch signal is output at the plurality of first receiving electrodes RX1 - a , RX1 - b , RX1 - c , and RX1 - d .

[0069] Figure 6 The fourth row of the table shows a case where a driving signal is applied to the plurality of 13th driving electrodes TX13 , and the sum of the touch signals output from the plurality of first receiving electrodes RX1 is −2 (diff). Figure 6 The fifth row of the table shows the case where a driving signal is applied to the 13th driving electrode TX13, and the sum of the touch signals output from the plurality of third receiving electrodes RX3 is -2 (diff). Figure 6 In the graph, when the driving signal is applied to the 13th driving electrode TX13, the final touch signal is shown as -4 (diff), which is due to the mapping Figure 6 The touch signals and Figure 6 The fifth row of the table shows the process of remapping of the touch signal.

[0070] See also Figure 6 According to the graph of FIG. 1 , when a driving signal is applied to the 13th driving electrode TX13, the difference in the touch signal (diff) output when the device having the touch sensor panel is in a floating state and in a gripping state is large. Due to this difference, when a single touch is applied to a specific portion of the 13th driving electrode TX13 including the touch sensor panel in the LGM state, the touch signal is split to the left and right at the specific portion.

[0071] Figure 7 It is a practical test Figure 6 Tables and graphs of the status.

[0072] See also Figure 7 , we can see from the case where only LGM interference signal exists ( Figure 6 The -diff value of the LGM interference signal is calculated based on the first and eighth rows of the table) and the number of LGM interference signals (LGM number).

[0073] The -diff of the calculated LGM interference signal can be used to calculate the LGM compensation value, and by comparing it with the measured value when the device is grasped (the value that should have been output), it can be confirmed that the measured value in the grasped state (the value that should have been output) is almost similar to the LGM compensation value.

[0074] so, Figure 2 The touch sensor panel may cause a phenomenon in which a touch signal outputted by a device having the touch sensor panel in a floating state when a user single-touches a specific portion thereof is split to the left and right. Due to the left-right splitting phenomenon of the touch signal, the device having the touch sensor panel may misidentify the single touch of the user as multiple touches, thereby possibly performing an action inconsistent with the user's intention.

[0075] See below Figures 8a to 14b A touch sensor panel according to an embodiment of the present invention is described, which can improve the phenomenon of left-right splitting of a touch signal output from a touch sensor panel in a floating state.

[0076] Figures 8a to 14b The touch sensor panel shown can improve the left-right split phenomenon of the touch signal output from the touch sensor panel in a floating state. Figures 8a to 14b In the touch sensor panel shown, the two second electrodes adjacent to each other on both sides with respect to each first electrode as a reference are identical, or the two second electrodes adjacent to each other on both sides with respect to each first electrode as a reference are different. The first electrode and the second electrode may also be configured in the opposite manner, with either the first electrode or the second electrode being a receiving electrode RX and the remaining electrode being a driving electrode TX. The same means that they are electrically connected to each other through wiring (or conductive lines).

[0077] More specifically, Figures 8a to 14b In the touch sensor panel shown, the two adjacent driving electrodes TX on both sides based on each receiving electrode RX are the same, or the two adjacent driving electrodes TX on both sides based on each receiving electrode RX are different. Alternatively, the two adjacent receiving electrodes RX on both sides based on each driving electrode TX are the same, or the two adjacent receiving electrodes RX on both sides based on each driving electrode TX are different.

[0078] This Figures 8a to 14b The touch sensor panel shown can improve the left-right split phenomenon of the touch signal output from the touch sensor panel in a floating state.

[0079] In the following, each touch sensor panel is described, assuming that each driving electrode and each receiving electrode are arranged at a predetermined interval, and receiving electrodes with the same number are electrically connected to each other through wiring, and driving electrodes with the same number are also electrically connected to each other through wiring. In the case where two driving electrodes or receiving electrodes that are continuous in the column direction have the same number, the two driving electrodes or receiving electrodes that are continuous in the column direction can also be configured as one according to the design.

[0080] First embodiment

[0081] Figure 8a is a schematic diagram enlarging a portion of the arrangement structure of the driving electrodes and the receiving electrodes of the touch sensor panel of the first embodiment, Figure 8b The conductive bar contact of 15 (phi) is shown Figure 8a The experimental data showing that the left-right split is improved in the case of the touch sensor board in the floating state.

[0082] See also Figure 8a The touch sensor panel of the first embodiment includes a plurality of driving electrodes TX and a plurality of receiving electrodes RX. The plurality of driving electrodes TX and the plurality of receiving electrodes RX are arranged in a matrix on the same layer.

[0083] The plurality of driving electrodes TX and the plurality of receiving electrodes RX may be formed of a transparent conductive material (e.g., indium tin oxide (ITO: Indium Tin Oxide) or antimony tin oxide (ATO: Antimony Tin Oxide) composed of tin oxide (SnO2) and indium oxide (In2O3). However, this is only an example, and the driving electrodes TX and the receiving electrodes RX may also be formed of other transparent conductive materials or non-transparent conductive materials. For example, the driving electrodes TX and the receiving electrodes RX may be formed to contain at least any one of silver ink, copper, nano silver, and carbon nanotubes (CNT: Carbon Nanotube).

[0084] Each of the driving electrode TX and the receiving electrode RX is connected to a wiring (or a conductive line). Figure 8a The following figures, including the following, appear to show wiring of various thicknesses, but Figure 8a The enlarged view of a portion shown at the top of the figure may be due to the dense arrangement of multiple wirings, resulting in wirings of various thicknesses. Of course, the thickness of the wirings may also be different depending on the situation.

[0085] Furthermore, the driving electrode TX and the receiving electrode RX may be implemented by a metal mesh. When the driving electrode TX and the receiving electrode RX are implemented by a metal mesh, the wiring connected to the driving electrode TX and the receiving electrode RX may also be implemented by a metal mesh, and the driving electrode TX and the receiving electrode RX and the wiring may also be integrated by the metal mesh. When the driving electrode TX and the receiving electrode RX and the wiring are integrated by a metal mesh, the dead zone between the electrode and the wiring and / or between the electrode and other electrodes where the touch position cannot be sensed is reduced, thereby further improving the sensitivity of touch position detection.

[0086] The touch sensor panel of the first embodiment is arranged based on a plurality of receiving electrodes RX. Therefore, the arrangement structure of the plurality of receiving electrodes RX arranged in columns A1 to A8 is first described below, and then the arrangement structure of the plurality of driving electrodes TX is described.

[0087] The plurality of receiving electrodes RX are arranged in a plurality of columns A1, A2, A3, A4, A5, A6, A7, and A8, respectively. The plurality of driving electrodes TX are arranged in a plurality of columns B1, B2, B3, B4, B5, B6, B7, B8, B9, and B10 formed between the columns A1, A2, A3, A4, A5, A6, A7, and A8 in which the receiving electrodes RX are arranged, and outside the first column A1 and the eighth column A8.

[0088] With each receiving electrode RX of the plurality of receiving electrodes RX as a reference, two adjacent driving electrodes TX on both sides have the same characteristics. That is, with each receiving electrode RX as a reference, two adjacent driving electrodes TX on both sides have the same number. The two driving electrodes TX being the same or the two driving electrodes TX having the same number means that they are electrically connected to each other through wiring.

[0089] The touch sensor panel of the first embodiment includes one or more sets of a plurality of receiving electrodes RX and a plurality of driving electrodes TX arranged in a predetermined arrangement. A plurality of sets may be repeatedly arranged in the row direction and the column direction to form the touch sensor panel of the first embodiment.

[0090] A set may include different multiple receiving electrodes RX. For example, a set may include 8 receiving electrodes RX0, RX1, RX2, RX3, RX4, RX5, RX6, and RX7. The 8 receiving electrodes RX0, RX1, RX2, RX3, RX4, RX5, RX6, and RX7 may be configured in a predetermined arrangement. The 8 receiving electrodes RX0, RX1, RX2, RX3, RX4, RX5, RX6, and RX7 may be arranged separately in the row direction in 4 consecutive columns A1, A2, A3, and A4. Therefore, 2 receiving electrodes may be arranged from top to bottom in each of the 4 columns.

[0091] Multiple receiving electrodes with consecutive numbers are arranged in each column. Among them, the arrangement order of odd columns A1 and A3 and the arrangement order of even columns A2 and A4 can be exactly opposite. For example, in the first column A1, the receiving electrodes RX0 and RX1 with consecutive numbers are arranged in order from top to bottom, in the second column A2, the receiving electrodes RX2 and RX3 with consecutive numbers are arranged in order from bottom to top, in the third column A3, the receiving electrodes RX4 and RX5 with consecutive numbers are arranged in order from bottom to top, and in the fourth column A4, the receiving electrodes RX6 and RX7 with consecutive numbers are arranged in order from bottom to top. Among them, although not shown in the figure, different multiple receiving electrodes contained in a set can be arranged randomly instead of being arranged in sequence in the row or column direction.

[0092] In addition, the touch sensor panel of the first embodiment includes a plurality of driving electrodes TX, for example, the plurality of driving electrodes TX may include 0th to 7th driving electrodes TX0, wherein each driving electrode may be arranged to satisfy the following arrangement conditions.

[0093] Multiple driving electrodes TX can be arranged to meet the following conditions. 1) With one receiving electrode RX as a reference, 4 different driving electrodes are arranged on the left side, and 4 different driving electrodes are arranged on the right side. 2) Two driving electrodes TX that are opposite to each other with respect to each receiving electrode RX have the same number. 3) Five identical driving electrodes are arranged continuously in the row direction. 4) The 8 driving electrodes on both sides of the receiving electrode RX1 adjacent to the even-numbered rows are arranged symmetrically with the 8 driving electrodes on both sides of the receiving electrode RX0 adjacent to the odd-numbered rows. 5) The length (lateral length) of the driving electrodes TX arranged at the two side edges of each set is half the length (lateral length) of the other driving electrodes.

[0094] See also Figure 8b When the touch sensor board of the first embodiment is touched by a conductive rod of 15 (phi) in a floating state, it can be confirmed by the size of the output touch signal (final capacitance change) that almost no left-right split occurs. Since the touch sensor board of the first embodiment has the same characteristics as the two adjacent drive electrodes TX on both sides based on each receiving electrode RX, it is expected that the part where the LGM signal increases sharply will be eliminated during the remapping process, thereby improving the left-right split.

[0095] Second embodiment

[0096] Figure 9a is a schematic diagram showing a part of the arrangement structure of the driving electrodes and the receiving electrodes of the touch sensor panel according to the second embodiment, Figure 9b The conductive bar contact of 15 (phi) is shown Figure 9a The experimental data showing that the left-right split is improved in the case of the touch sensor board in the floating state.

[0097] See also Figure 9a The touch sensor panel of the second embodiment includes a plurality of driving electrodes TX and a plurality of receiving electrodes RX. The plurality of driving electrodes TX and the plurality of receiving electrodes RX are arranged in a matrix on the same layer.

[0098] The plurality of driving electrodes TX and the plurality of receiving electrodes RX may be formed of a transparent conductive material (e.g., indium tin oxide (ITO: Indium Tin Oxide) or antimony tin oxide (ATO: Antimony Tin Oxide) composed of tin oxide (SnO2) and indium oxide (In2O3). However, this is only an example, and the driving electrodes TX and the receiving electrodes RX may also be formed of other transparent conductive materials or non-transparent conductive materials. For example, the driving electrodes TX and the receiving electrodes RX may be formed to contain at least any one of silver ink, copper, nano silver, and carbon nanotubes (CNT: Carbon Nanotube).

[0099] Furthermore, the driving electrode TX and the receiving electrode RX may be implemented by a metal mesh. When the driving electrode TX and the receiving electrode RX are implemented by a metal mesh, the wiring connected to the driving electrode TX and the receiving electrode RX may also be implemented by a metal mesh, and the driving electrode TX and the receiving electrode RX and the wiring may also be integrated by the metal mesh. When the driving electrode TX and the receiving electrode RX and the wiring are integrated by a metal mesh, the dead zone between the electrode and the wiring and / or between the electrode and other electrodes where the touch position cannot be sensed is reduced, thereby further improving the sensitivity of touch position detection.

[0100] The touch sensor panel of the second embodiment is arranged based on a plurality of receiving electrodes RX. Therefore, the arrangement structure of the plurality of receiving electrodes RX arranged in columns A1 to A8 is first described below, and then the arrangement structure of the plurality of driving electrodes TX is described.

[0101] The plurality of receiving electrodes RX are arranged in a plurality of columns A1, A2, A3, A4, A5, A6, A7, and A8, respectively. The plurality of driving electrodes TX are arranged in a plurality of columns B1, B2, B3, B4, B5, B6, B7, B8, B9, B10, B11, B12, B13, B14, B15, and B16 formed between the columns A1, A2, A3, A4, A5, A6, A7, and A8 in which the receiving electrodes RX are arranged, and outside the first column A1 and the eighth column A8.

[0102] With each receiving electrode RX of the plurality of receiving electrodes RX as a reference, two adjacent driving electrodes TX on both sides have the same characteristics. That is, with each receiving electrode RX as a reference, two adjacent driving electrodes TX on both sides have the same number. The two driving electrodes TX being the same or the two driving electrodes TX having the same number means that they are electrically connected to each other through wiring.

[0103] The touch sensor panel of the second embodiment includes one or more sets of a plurality of receiving electrodes RX and a plurality of driving electrodes TX arranged in a predetermined arrangement. A plurality of sets may be repeatedly arranged in the row direction and the column direction to form the touch sensor panel of the second embodiment.

[0104] A set may include different multiple receiving electrodes RX, for example, a set may include 8 receiving electrodes RX0, RX1, RX2, RX3, RX4, RX5, RX6, RX7. The 8 receiving electrodes RX0, RX1, RX2, RX3, RX4, RX5, RX6, RX7 may be configured in a predetermined arrangement. The 8 receiving electrodes RX0, RX1, RX2, RX3, RX4, RX5, RX6, RX7 are arranged in 4 consecutive columns A1, A2, A3, A4 in the row direction. Therefore, 2 receiving electrodes may be arranged from top to bottom in each of the 4 columns.

[0105] Multiple receiving electrodes with consecutive numbers are arranged in each column. Among them, the arrangement order of odd columns A1 and A3 and the arrangement order of even columns A2 and A4 can be exactly opposite. For example, in the first column A1, the receiving electrodes RX0 and RX1 with consecutive numbers are arranged in order from top to bottom, in the second column A2, the receiving electrodes RX2 and RX3 with consecutive numbers are arranged in order from bottom to top, in the third column A3, the receiving electrodes RX4 and RX5 with consecutive numbers are arranged in order from top to bottom, and in the fourth column A4, the receiving electrodes RX6 and RX7 with consecutive numbers are arranged in order from bottom to top. Among them, although not shown in the figure, different multiple receiving electrodes contained in a set can be arranged randomly instead of being arranged in sequence in the row or column direction.

[0106] In addition, the touch sensor panel of the second embodiment includes a plurality of driving electrodes TX, for example, the plurality of driving electrodes TX may include a 0th driving electrode TX0 to a 15th driving electrode TX15. The driving electrodes may be arranged to satisfy the following arrangement conditions.

[0107] The plurality of driving electrodes TX may be arranged to satisfy the following conditions. 1) With one receiving electrode RX as a reference, four different driving electrodes are arranged on the left side and four different driving electrodes are arranged on the right side. 2) Two driving electrodes TX facing each other with respect to each receiving electrode RX as a reference have the same number. 3) The size of each receiving electrode is eight times the size of the driving electrode TX. 4) The eight driving electrodes on both sides of the receiving electrode RX1 adjacent to the even-numbered row are arranged symmetrically with the eight driving electrodes on both sides of the receiving electrode RX0 adjacent to the odd-numbered row.

[0108] See also Figure 9b , when the touch sensor board of the second embodiment is touched by a conductive rod of 15 (phi) in a floating state, it can be confirmed by the size of the output touch signal (final capacitance change) that no left-right split occurs. The touch sensor board of the second embodiment is also the same as the touch sensor board of the first embodiment, because the two drive electrodes TX adjacent to both sides based on each receiving electrode RX have the same characteristics, it is expected that the part where the LGM signal increases sharply during the remapping process disappears, thereby improving the left-right split.

[0109] Third embodiment

[0110] Fig.10a is a schematic diagram showing a part of the arrangement structure of the driving electrodes and the receiving electrodes of the touch sensor panel according to the third embodiment, Fig.10b It shows that the conductive rod of 15 (phi) is Fig.10a The experimental data shown shows that left-right splitting is improved when contact is made while the touch sensor panel is in a floating state.

[0111] See also Fig.10a The touch sensor panel of the third embodiment includes a plurality of driving electrodes TX and a plurality of receiving electrodes RX. The plurality of driving electrodes TX and the plurality of receiving electrodes RX are arranged in a matrix on the same layer.

[0112] The plurality of driving electrodes TX and the plurality of receiving electrodes RX may be formed of a transparent conductive material (e.g., indium tin oxide (ITO: Indium Tin Oxide) or antimony tin oxide (ATO: Antimony Tin Oxide) composed of tin oxide (SnO2) and indium oxide (In2O3). However, this is only an example, and the driving electrodes TX and the receiving electrodes RX may also be formed of other transparent conductive materials or non-transparent conductive materials. For example, the driving electrodes TX and the receiving electrodes RX may be formed to contain at least any one of silver ink, copper, nano silver, and carbon nanotubes (CNT: Carbon Nanotube).

[0113] Furthermore, the driving electrode TX and the receiving electrode RX may be implemented by a metal mesh. When the driving electrode TX and the receiving electrode RX are implemented by a metal mesh, the wiring connected to the driving electrode TX and the receiving electrode RX may also be implemented by a metal mesh, and the driving electrode TX and the receiving electrode RX and the wiring may also be integrated by the metal mesh. When the driving electrode TX and the receiving electrode RX and the wiring are integrated by a metal mesh, the dead zone between the electrode and the wiring and / or between the electrode and other electrodes where the touch position cannot be sensed is reduced, thereby further improving the sensitivity of touch position detection.

[0114] The touch sensor panel of the third embodiment is arranged based on a plurality of receiving electrodes RX. Therefore, the arrangement structure of the plurality of receiving electrodes RX is first described below, and then the arrangement structure of the plurality of driving electrodes TX is described.

[0115] The plurality of receiving electrodes RX are arranged in a plurality of columns A1, A2, A3, A4, A5, A6, A7, and A8, respectively. The plurality of driving electrodes TX are arranged in a plurality of columns B1, B2, B3, B4, B5, B6, B7, B8, B9, B10, B11, and B12 formed between the columns A1, A2, A3, A4, A5, A6, A7, and A8 in which the receiving electrodes RX are arranged, and outside the first column A1 and the eighth column A8.

[0116] With each receiving electrode RX of the plurality of receiving electrodes RX as a reference, two adjacent driving electrodes TX on both sides have the same characteristics. That is, with each receiving electrode RX as a reference, two adjacent driving electrodes TX on both sides have the same number. The two driving electrodes TX being the same or the two driving electrodes TX having the same number means that they are electrically connected to each other through wiring.

[0117] The touch sensor panel of the third embodiment includes one or more sets of a plurality of receiving electrodes RX and a plurality of driving electrodes TX arranged in a predetermined arrangement. A plurality of sets may be repeatedly arranged in the row direction and the column direction to form the touch sensor panel of the third embodiment.

[0118] A set may include different multiple receiving electrodes RX. For example, a set may include 8 receiving electrodes RX0, RX1, RX2, RX3, RX4, RX5, RX6, and RX7. The 8 receiving electrodes RX0, RX1, RX2, RX3, RX4, RX5, RX6, and RX7 may be arranged in a predetermined arrangement. The 8 receiving electrodes RX0, RX1, RX2, RX3, RX4, RX5, RX6, and RX7 may be arranged separately in the row direction in 4 consecutive columns A1, A2, A3, and A4. Therefore, 2 receiving electrodes may be arranged from top to bottom in each of the 4 columns.

[0119] Multiple receiving electrodes with consecutive numbers are arranged in each column. Among them, the arrangement order of odd columns A1 and A3 and the arrangement order of even columns A2 and A4 can be exactly opposite. For example, in the first column A1, the receiving electrodes RX0 and RX1 with consecutive numbers are arranged in order from top to bottom, in the second column A2, the receiving electrodes RX2 and RX3 with consecutive numbers are arranged in order from bottom to top, in the third column A3, the receiving electrodes RX4 and RX5 with consecutive numbers are arranged in order from top to bottom, and in the fourth column A4, the receiving electrodes RX6 and RX7 with consecutive numbers are arranged in order from bottom to top. Among them, although not shown in the figure, different multiple receiving electrodes contained in a set can be arranged randomly instead of being arranged in sequence in the row or column direction.

[0120] In addition, the touch sensor panel of the third embodiment includes a plurality of driving electrodes TX, for example, the plurality of driving electrodes TX may include a 0th driving electrode TX0 to a 15th driving electrode TX15. The driving electrodes may be arranged to satisfy the following arrangement conditions.

[0121] A plurality of driving electrodes TX are arranged to satisfy the following conditions. 1) With one receiving electrode RX as a reference, four different driving electrodes are arranged on the left side, and four different driving electrodes are arranged on the right side. 2) Two driving electrodes TX facing each other with respect to each receiving electrode RX have the same number. 3) Three driving electrodes with the same number are arranged continuously in the row direction. 4) The eight driving electrodes adjacent to the receiving electrode RX1 of the even-numbered rows are arranged symmetrically with the eight driving electrodes adjacent to the receiving electrode RX0 of the odd-numbered rows. 5) The length (lateral length) of the driving electrodes arranged at the two side edges of each set and the driving electrodes arranged in the center of each set is half the length (lateral length) of the other driving electrodes.

[0122] See also Fig.10b , when the touch sensor board of the third embodiment is touched by a conductive rod of 15 (phi) in a floating state, it can be confirmed by the size of the output touch signal (final capacitance change) that no left-right split occurs. In the touch sensor board of the third embodiment, as in the touch sensor board of the first embodiment, since the two drive electrodes TX adjacent to both sides based on each receiving electrode RX have the same characteristics, it is expected that the part where the LGM signal increases sharply during the remapping process disappears, thereby improving the left-right split.

[0123] Fourth embodiment

[0124] Fig.11a A schematic diagram showing a part of the arrangement structure of the driving electrodes and the receiving electrodes of the touch sensor panel according to the fourth embodiment is enlarged. Fig.11b It shows that the conductive rod of 15 (phi) is Fig.11aThe experimental data shown shows that left-right splitting is improved when contact is made while the touch sensor panel is in a floating state.

[0125] See also Fig.11a The touch sensor panel of the fourth embodiment includes a plurality of driving electrodes TX and a plurality of receiving electrodes RX. The plurality of driving electrodes TX and the plurality of receiving electrodes RX are arranged in a matrix on the same layer.

[0126] The plurality of driving electrodes TX and the plurality of receiving electrodes RX may be formed of a transparent conductive material (e.g., indium tin oxide (ITO: Indium Tin Oxide) or antimony tin oxide (ATO: Antimony Tin Oxide) composed of tin oxide (SnO2) and indium oxide (In2O3). However, this is only an example, and the driving electrodes TX and the receiving electrodes RX may also be formed of other transparent conductive materials or non-transparent conductive materials. For example, the driving electrodes TX and the receiving electrodes RX may be formed to contain at least any one of silver ink, copper, nano silver, and carbon nanotubes (CNT: Carbon Nanotube).

[0127] Furthermore, the driving electrode TX and the receiving electrode RX may be implemented by a metal mesh. When the driving electrode TX and the receiving electrode RX are implemented by a metal mesh, the wiring connected to the driving electrode TX and the receiving electrode RX may also be implemented by a metal mesh, and the driving electrode TX and the receiving electrode RX and the wiring may also be integrated by the metal mesh. When the driving electrode TX and the receiving electrode RX and the wiring are integrated by a metal mesh, the dead zone between the electrode and the wiring and / or between the electrode and other electrodes where the touch position cannot be sensed is reduced, thereby further improving the sensitivity of touch position detection.

[0128] The touch sensor panel of the fourth embodiment is arranged based on a plurality of receiving electrodes RX. Therefore, the arrangement structure of the plurality of receiving electrodes RX arranged in columns B1 to B8 is first described below, and then the arrangement structure of the plurality of driving electrodes TX is described.

[0129] The plurality of receiving electrodes RX are arranged in a plurality of columns B1, B2, B3, B4, B5, B6, B7, and B8, respectively. The plurality of driving electrodes TX are arranged in a plurality of columns A1, A2, A3, A4, A5, A6, A7, and A8 formed between the columns B1, B2, B3, B4, B5, B6, B7, and B8 in which the receiving electrodes RX are arranged, and formed outside the first column B1 and outside the eighth column B8.

[0130] With each receiving electrode RX of the plurality of receiving electrodes RX as a reference, two adjacent driving electrodes TX on both sides have the same characteristics. That is, with each receiving electrode RX as a reference, two adjacent driving electrodes TX on both sides have the same number. The two driving electrodes TX being the same or the two driving electrodes TX having the same number means that they are electrically connected to each other through wiring.

[0131] The touch sensor panel of the fourth embodiment includes one or more sets of receiving electrodes RX and driving electrodes TX arranged in a predetermined arrangement. The plurality of sets may be repeatedly arranged in the row direction and the column direction to form the touch sensor panel of the fourth embodiment. However, the receiving electrodes RX of the even-numbered sets are arranged symmetrically with the receiving electrodes of the odd-numbered sets.

[0132] A set may include different multiple receiving electrodes RX, for example, a set may include 16 receiving electrodes RX0 from the 0th to the 15th receiving electrodes RX15. The 16 receiving electrodes RX0, RX1, RX2, RX3, RX4, RX5, RX6, RX7, RX8, RX9, RX10, RX11, RX12, RX13, RX14, RX15 may be configured in a predetermined arrangement. The 16 receiving electrodes RX0 from the 0th to the 15th receiving electrodes RX15 are arranged separately in two consecutive rows in the column-row direction. Therefore, eight receiving electrodes may be arranged in each of the two rows.

[0133] The receiving electrodes numbered from 0 to 7 are arranged from left to right in the first row in the order of RX0, RX1, RX2, RX3, RX4, RX5, RX6, RX7, and the receiving electrodes numbered from 8 to 15 are arranged from left to right in the second row in the order of RX15, RX14, RX13, RX12, RX11, RX10, RX9, RX8.

[0134] In addition, the touch sensor panel of the fourth embodiment includes a plurality of driving electrodes TX, for example, the plurality of driving electrodes TX may include a 0th driving electrode TX0 to a 3rd driving electrode TX3, wherein each driving electrode may be arranged to satisfy the following arrangement conditions.

[0135] The plurality of driving electrodes TX are arranged to satisfy the following conditions. 1) With reference to two different receiving electrodes RX0 and RX15 that are continuous in the column direction, one driving electrode is arranged on the left and one on the right. 2) With reference to two different receiving electrodes RX0 and RX15 that are continuous in the column direction, two driving electrodes TX that are opposite to each other have the same number. 3) The driving electrodes TX arranged in the column direction have different numbers, and the driving electrodes TX arranged in the row direction have the same number. 4) The length (lateral length) of the driving electrodes arranged at the two side edges of each set is half the length (lateral length) of the other driving electrodes.

[0136] See also Fig.11b , when the touch sensor board of the fourth embodiment is touched by a conductive rod of 15 (phi) in a floating state, it can be confirmed by the size of the output touch signal (final capacitance change) that no left-right split occurs. The touch sensor board of the fourth embodiment is also the same as the touch sensor board of the first embodiment. Since the two drive electrodes TX adjacent to both sides based on each receiving electrode RX have the same characteristics, it is expected that the part where the LGM signal increases sharply during the remapping process disappears, thereby improving the left-right split.

[0137] Fifth embodiment

[0138] Fig.12a FIG. 1 is a schematic diagram showing a part of the arrangement structure of the driving electrodes and the receiving electrodes of the touch sensor panel according to the fifth embodiment, Figure 12b It shows that the conductive rod of 15 (phi) is Fig.12a The experimental data shown shows that left-right splitting is improved when contact is made while the touch sensor panel is in a floating state.

[0139] Fig.12a The touch sensor board of the fifth embodiment shown in FIG. Fig.11a Compared with the touch sensor panel of the fourth embodiment shown in FIG. 1 , the arrangement of the receiving electrodes of the even-numbered sets is the same as the arrangement of the receiving electrodes of the odd-numbered sets. That is, the arrangement of the receiving electrodes of all sets is the same. Fig.11a The touch sensor panel of the fourth embodiment shown is the same, so the detailed description of the other parts is omitted.

[0140] See also Figure 12b When the touch sensor panel of the fifth embodiment is touched by a conductive rod of 15 (phi) in a floating state, it can be confirmed from the size of the output touch signal (final capacitance change) that left-right splitting does not occur.

[0141] Sixth Embodiment

[0142] Fig.13a is a schematic diagram showing a part of the arrangement structure of the driving electrodes and the receiving electrodes of the touch sensor panel according to the sixth embodiment, Fig.13b It shows that the conductive rod of 15 (phi) is Fig.13a The experimental data shown shows that left-right splitting is improved when contact is made while the touch sensor panel is in a floating state.

[0143] See also Fig.13a The touch sensor panel of the sixth embodiment includes a plurality of driving electrodes TX and a plurality of receiving electrodes RX. The plurality of driving electrodes TX and the plurality of receiving electrodes RX are arranged in a matrix form.

[0144] The plurality of driving electrodes TX and the plurality of receiving electrodes RX may be formed of a transparent conductive material (e.g., indium tin oxide (ITO: Indium Tin Oxide) or antimony tin oxide (ATO: Antimony Tin Oxide) composed of tin oxide (SnO2) and indium oxide (In2O3). However, this is only an example, and the driving electrodes TX and the receiving electrodes RX may also be formed of other transparent conductive materials or non-transparent conductive materials. For example, the driving electrodes TX and the receiving electrodes RX may be formed to contain at least any one of silver ink, copper, nano silver, and carbon nanotubes (CNT: Carbon Nanotube).

[0145] Furthermore, the driving electrode TX and the receiving electrode RX may be implemented by a metal mesh. When the driving electrode TX and the receiving electrode RX are implemented by a metal mesh, the wiring connected to the driving electrode TX and the receiving electrode RX may also be implemented by a metal mesh, and the driving electrode TX and the receiving electrode RX and the wiring may also be integrated by the metal mesh. When the driving electrode TX and the receiving electrode RX and the wiring are integrated by a metal mesh, the dead zone between the electrode and the wiring and / or between the electrode and other electrodes where the touch position cannot be sensed is reduced, thereby further improving the sensitivity of touch position detection.

[0146] The touch sensor panel of the sixth embodiment is arranged based on a plurality of driving electrodes TX. Therefore, the arrangement structure of the plurality of driving electrodes TX arranged in columns B1 to B16 is first described below, and then the arrangement structure of the plurality of receiving electrodes RX is described.

[0147] The plurality of driving electrodes TX are arranged in a plurality of columns B1, B2, B3, B4, B5, B6, B7, B8, B9, B10, B11, B12, B13, B14, B15, and B16. The plurality of receiving electrodes RX are arranged in a plurality of columns A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, and A16 formed between the columns B1, B2, B3, B4, B5, B6, B7, B8, B9, B10, B11, B12, B13, B14, B15, and B16 in which the driving electrodes TX are arranged, and formed outside the first column B1 and outside the sixteenth column B16.

[0148] Based on each of the plurality of driving electrodes TX, two receiving electrodes RX adjacent to each other have different characteristics. That is, based on each of the receiving electrodes RX, the numbers of the two driving electrodes TX adjacent to each other are different. The two receiving electrodes RX being different or the numbers of the two receiving electrodes RX being different means that they are not electrically connected to each other through wiring.

[0149] The plurality of driving electrodes TX include a first set (set1) of 32 driving electrodes TX0 to TX31 arranged in a first arrangement, and a second set (set2) of 32 driving electrodes TX0 to TX31 arranged in a second arrangement.

[0150] The first set (set1) may have two consecutive ones in the row direction and two in the column direction, and the first set (set1) located in the even-numbered rows may be symmetrical with the first set (set1) located in the odd-numbered rows.

[0151] The second set (set2) may have two consecutive ones in the row direction and two in the column direction, and the second set (set2) located in the even-numbered rows may be symmetrical with the second set (set2) located in the odd-numbered rows.

[0152] Furthermore, the plurality of second sets may be arranged on one side of the plurality of first sets.

[0153] The first arrangement of the first set (set1) is to divide the 32 driving electrodes TX0 to TX31 into 4 columns continuous in the row direction, wherein the driving electrodes numbered 0 to 7 are arranged from top to bottom in the order of TX0, TX1, TX2, TX3, TX4, TX5, TX6, and TX7 in the first column, the driving electrodes numbered 8 to 15 are arranged from top to bottom in the order of TX15, TX14, TX13, TX12, TX11, TX10, TX9, and TX8 in the second column, the driving electrodes numbered 16 to 23 are arranged from top to bottom in the order of TX16, TX17, TX18, TX19, TX20, TX21, TX22, and TX23 in the third column, and the driving electrodes numbered 24 to 31 are arranged from top to bottom in the order of TX31, TX30, TX29, TX28, TX27, TX26, TX25, and TX24 in the fourth column.

[0154] The second arrangement of the second set (set2) is to divide the 32 driving electrodes TX0 to TX31 into 4 columns continuous in the row direction, wherein the driving electrodes numbered 16 to 23 are arranged from top to bottom in the order of TX16, TX17, TX18, TX19, TX20, TX21, TX22, and TX23 in the first column, the driving electrodes numbered 24 to 31 are arranged from top to bottom in the order of TX31, TX30, TX29, TX28, TX27, TX26, TX25, and TX24 in the second column, the driving electrodes numbered 0 to 7 are arranged from top to bottom in the order of TX0, TX1, TX2, TX3, TX4, TX5, TX6, and TX7 in the third column, and the driving electrodes numbered 8 to 15 are arranged from top to bottom in the order of TX15, TX14, TX13, TX12, TX11, TX10, TX9, and TX8 in the fourth column.

[0155] In addition, the touch sensor panel of the sixth embodiment includes a plurality of receiving electrodes RX, for example, the plurality of receiving electrodes RX may include a 0th receiving electrode RX0 to a 15th receiving electrode RX15. The respective receiving electrodes may be arranged to satisfy the following arrangement conditions.

[0156] The plurality of receiving electrodes RX are arranged to satisfy the following conditions. 1) Based on the eight different driving electrodes TX that are continuous in the column direction, one receiving electrode is arranged on the left side and one receiving electrode is arranged on the right side. 2) Based on the eight different driving electrodes TX that are continuous in the column direction, two receiving electrodes RX that are opposite to each other have different numbers. 3) Two different receiving electrodes RX are arranged in the column direction, and two different receiving electrodes RX are repeatedly arranged in the row direction. 4) As shown in FIG. Fig.13b As shown in FIG. 1 , the length (lateral length) of the receiving electrodes arranged at the two side edges along the column direction may be half of the length (lateral length) of other receiving electrodes, but is not limited thereto. Fig.13a As shown, the length (lateral length) of the receiving electrodes arranged at the two side edges along the column direction may also be the same as the length (lateral length) of other receiving electrodes.

[0157] See also Fig.13b , when the touch sensor board of the sixth embodiment is touched by a conductive rod of 15 (phi) in a floating state, it can be confirmed by the size of the output touch signal (final capacitance change) that no left-right split occurs. In the touch sensor board of the sixth embodiment, since the two receiving electrodes RX adjacent to both sides have the same characteristics based on each driving electrode TX, it is expected that the part where the LGM signal increases sharply during the remapping process disappears, thereby improving the left-right split.

[0158] Seventh embodiment

[0159] Fig.14a FIG. 1 is a schematic diagram showing a part of the arrangement structure of the driving electrodes and the receiving electrodes of the touch sensor panel according to the seventh embodiment, Fig.14b It shows that the conductive rod of 15 (phi) is Fig.14a The experimental data shown shows that the left-right splitting is improved when the touch sensor panel is in a floating state.

[0160] See also Fig.14a The touch sensor panel of the seventh embodiment includes a plurality of driving electrodes TX and a plurality of receiving electrodes RX. The plurality of driving electrodes TX and the plurality of receiving electrodes RX are arranged in a matrix form.

[0161] The plurality of driving electrodes TX and the plurality of receiving electrodes RX may be formed of a transparent conductive material (e.g., indium tin oxide (ITO: Indium Tin Oxide) or antimony tin oxide (ATO: Antimony Tin Oxide) composed of tin oxide (SnO2) and indium oxide (In2O3). However, this is only an example, and the driving electrodes TX and the receiving electrodes RX may also be formed of other transparent conductive materials or non-transparent conductive materials. For example, the driving electrodes TX and the receiving electrodes RX may be formed to contain at least any one of silver ink, copper, nano silver, and carbon nanotubes (CNT: Carbon Nanotube).

[0162] Furthermore, the driving electrode TX and the receiving electrode RX may be implemented by a metal mesh. When the driving electrode TX and the receiving electrode RX are implemented by a metal mesh, the wiring connected to the driving electrode TX and the receiving electrode RX may also be implemented by a metal mesh, and the driving electrode TX and the receiving electrode RX and the wiring may also be integrated by the metal mesh. When the driving electrode TX and the receiving electrode RX and the wiring are integrated by a metal mesh, the dead zone between the electrode and the wiring and / or between the electrode and other electrodes where the touch position cannot be sensed is reduced, thereby further improving the sensitivity of touch position detection.

[0163] The touch sensor panel of the seventh embodiment is arranged based on a plurality of driving electrodes TX. Therefore, the arrangement structure of the plurality of driving electrodes TX arranged in columns B1 to B16 is first described below, and then the arrangement structure of the plurality of receiving electrodes RX is described.

[0164] The plurality of driving electrodes TX are arranged in a plurality of columns B1, B2, B3, B4, B5, B6, B7, B8, B9, B10, B11, B12, B13, B14, B15, and B16. The plurality of receiving electrodes RX are arranged in a plurality of columns A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, and A16 formed between the columns B1, B2, B3, B4, B5, B6, B7, B8, B9, B10, B11, B12, B13, B14, B15, and B16 in which the driving electrodes TX are arranged, and formed outside the first column B1 and outside the sixteenth column B16.

[0165] Based on each of the plurality of driving electrodes TX, two receiving electrodes RX adjacent to each other have different characteristics. That is, based on each of the driving electrodes TX, two receiving electrodes RX adjacent to each other have different numbers. The two receiving electrodes RX being different or the two receiving electrodes RX having different numbers means that they are not electrically connected to each other through wiring.

[0166] The plurality of driving electrodes TX include 32 driving electrodes TX0 to TX31, which are arranged in a first set (set1) of a first arrangement. The sets may be repeatedly arranged in the row direction and the column direction, and the sets in the even rows may be symmetrical with the sets in the odd rows.

[0167] The first arrangement of each set is to arrange 32 driving electrodes TX0 to TX31 in four consecutive columns in the row direction. In the first column, the driving electrodes numbered 0 to 7 are arranged from top to bottom in the order of TX0, TX1, TX2, TX3, TX4, TX5, TX6, and TX7. In the second column, the driving electrodes numbered 8 to 15 are arranged from top to bottom in the order of TX15, TX14, TX13, TX12, TX11, TX10, TX9, and TX8. In the third column, the driving electrodes numbered 16 to 23 are arranged from top to bottom in the order of TX16, TX17, TX18, TX19, TX20, TX21, TX22, and TX23. In the fourth column, the driving electrodes numbered 24 to 31 are arranged from top to bottom in the order of TX31, TX30, TX29, TX28, TX27, TX26, TX25, and TX24.

[0168] In addition, the touch sensor panel of the seventh embodiment includes a plurality of receiving electrodes RX, for example, the plurality of receiving electrodes RX may include a 0th receiving electrode RX0 to a 31st receiving electrode RX31. The respective receiving electrodes may be arranged to satisfy the following arrangement conditions.

[0169] The plurality of receiving electrodes RX are arranged to satisfy the following conditions. 1) Based on the eight different driving electrodes TX that are continuous in the column direction, one receiving electrode is arranged on the left side and one receiving electrode is arranged on the right side. 2) Based on the eight different driving electrodes TX that are continuous in the column direction, two receiving electrodes RX that are opposite to each other have different numbers. 3) Two different receiving electrodes are arranged in the column direction, and 16 different receiving electrodes are repeatedly arranged in the row direction. 4) As Fig.14b As shown in FIG. 1 , the length (lateral length) of the receiving electrodes arranged at the two side edges along the column direction may be half of the length (lateral length) of other receiving electrodes, but is not limited thereto. Fig.14a As shown, the length (lateral length) of the receiving electrodes arranged at the two side edges along the column direction may also be the same as the length (lateral length) of other receiving electrodes.

[0170] See also Fig.14b , when the touch sensor board of the seventh embodiment is touched by a conductive rod of 15 (phi) in a floating state, it can be confirmed by the size of the output touch signal (final capacitance change) that no left-right split occurs. The touch sensor board of the seventh embodiment, like the touch sensor board of the sixth embodiment, has the same characteristics as the two receiving electrodes RX adjacent to both sides based on each driving electrode TX, so it is expected that there will be no specific part where the LGM signal increases sharply during the remapping process, thereby improving the left-right split.

[0171] Furthermore, the touch sensor panel of the seventh embodiment has a larger number of receiving electrodes RX than the touch sensor panel of the sixth embodiment. Since it has a larger number of different receiving channels, it is less affected by LGM, and the left-right split phenomenon can be further improved.

[0172] like Figures 8a to 14b As shown, the touch sensor panels of the first to seventh embodiments have the advantage of improving the left-right split phenomenon. Figures 8a to 14b The touch sensor panel shown has the characteristics that two drive electrodes TX adjacent to each receiving electrode RX on both sides are the same, or two receive electrodes RX adjacent to each driving electrode TX on both sides are different.

[0173] Among them, it should be noted that Figures 8a to 14b The driving electrodes and receiving electrodes in the touch sensor panel shown can also be configured inversely. Therefore, when the two driving electrodes TX adjacent to each receiving electrode RX are different, or when the two receiving electrodes RX adjacent to each driving electrode TX are the same, there is also an advantage of improving the left-right split phenomenon.

[0174] in addition, Figure 2The conventional touch sensor board shown in the figure can also experience the 'up-down split phenomenon' in the floating state. Fig.15 Describe the upper and lower split phenomenon in detail.

[0175] Fig.15 It is used to describe Figure 2 The diagram is a schematic diagram of a vertical split phenomenon of a touch signal output when a finger touches a portion of the touch sensor panel when the touch sensor panel device is in a floating state.

[0176] Fig.15 (a) is the magnification Figure 2 A portion of a touch sensor panel is shown, showing a specific portion (touch location, t) being touched with an object (conductive rod), Fig.15 (b) is shown in Fig.15 A schematic diagram of the actual output value of the touch signal after remapping in the state shown on the left side of the schematic diagram.

[0177] Object pair Fig.15 When touching the touch position (t) shown in (a), it is possible to Fig.15 The 'd' part of (b) is split up and down.

[0178] The reason for the up-down splitting may be that the sum of the number of normal touch signals and the number of LGMs at the touch position (t) is greater than the sum of the number of normal touch signals and the number of LGMs at the previous touch position (t').

[0179] For example, at the touch position (t'), when the driving signal is applied to the 8th driving electrode TX8, the normal touch signal is the capacitance change value between the 8th driving electrode TX8 and the 1st receiving electrode RX1 adjacent to the left (1diff) and the mutual capacitance change value between the 8th driving electrode TX8 and the 1st receiving electrode RX1 adjacent to the right (1diff), and a total of 2 normal touch signals (2diff) are output. In addition, the LGM signal is output from each of the 4 first receiving electrodes RX1, so the number of LGM signals is 4 (-4diff). The LGM interference signal has the opposite sign to the normal touch signal, so the final touch signal becomes 2+(-4), that is, -2 (2diff).

[0180] On the contrary, for this touch position (t), when the driving signal is applied to the 8th driving electrode TX8, the normal touch signal is the mutual capacitance change value of 1 (1diff) between the 8th driving electrode TX8 and the 1st receiving electrode RX1 adjacent to the left, the mutual capacitance change value of 1 (1diff) between the 8th driving electrode TX8 and the 1st receiving electrode RX1 adjacent to the right, the mutual capacitance change value of 1 (1diff) between the 8th driving electrode TX8 and the 2nd receiving electrode RX2 adjacent to the left, and the mutual capacitance change value of 1 (1diff) between the 8th driving electrode TX8 and the 2nd receiving electrode RX2 adjacent to the right, and a total of 4 normal touch signals (4diff) are output. In addition, the LGM signal is output from each of the 4 first receiving electrodes RX1 and the 4 second receiving electrodes RX2, so the number of LGM signals is 8 (-8diff). The LGM interference signal has the opposite sign to the normal touch signal, so the final touch signal is 4+(-8), that is, -4 (4diff).

[0181] As described above, compared with the previous touch position (t'), the final touch signal output from the touch position (t) sharply increases the LGM signal component, so that Fig.15 In (b) and (d), the output touch signal drops sharply after the remapping process. Due to this phenomenon, up-down splitting can occur.

[0182] Furthermore, another reason for the occurrence of the upper and lower splits may be that the number of the same driving electrodes or / and the same receiving electrodes included in the touch position (t) is increased compared to the number of driving electrodes or / and the same receiving electrodes included in the previous touch position (t'). Among them, the area of ​​the driving electrode or the area of ​​the receiving electrode contacting the touch position (t) may also be considered.

[0183] The aforementioned Figures 8a to 14b In the touch sensor board of the present invention shown, Figure 8a to Figure 8b In the touch sensor panel of the first embodiment shown in FIG. Fig.16 In addition, since the actual output value of the touch signal output at the part where the up-down split occurs is lower than the reference value (eg, '65') for determining whether the touch is touched, it is difficult to overcome the up-down split phenomenon using software (SW).

[0184] Therefore, in order to improve Figure 8a to Figure 8b The up-and-down splitting phenomenon that occurs in the touch sensor board of the first embodiment is shown in FIG. Fig.17As shown, the touch sensor board of the embodiment of the present invention is preferably arranged such that, when a predetermined touch window area w is placed at a certain position on the touch sensor board, driving electrodes (or receiving electrodes) are arranged in the touch window area w so that the same driving electrodes (or receiving electrodes) are discontinuous in the column direction.

[0185] The touch window area w may represent an area covering a first number of first electrodes in a first direction and a second number of second electrodes in a second direction relative to each of the first number of first electrodes. The first electrode may be any one of the driving electrode and the receiving electrode, and the second electrode may be the remaining one.

[0186] Furthermore, the touch window area w may represent an area covering the first electrodes included in the plurality of first electrodes and the second electrodes included in the plurality of second electrodes. The first length and the second length may be the same or different.

[0187] For example, Fig.17 The middle touch window area w can be (phi) of a circle.

[0188] See also Fig.17 No matter which direction the touch window area w on the touch sensor board moves, the same driving electrodes in the touch window area w will not be continuous in the column direction.

[0189] More specifically, in order to improve the up-and-down splitting phenomenon, it is preferred that Fig.17As shown, in a touch sensor panel including a plurality of first electrodes RX0, RX1, RX2, RX3, RX4, RX5, RX6, RX7 arranged in a first direction (or row direction) and a second direction (or column direction) in the same layer, and a plurality of second electrodes TX0, TX3, TX4, TX7 arranged in the first direction (or row direction) and the second direction (or column direction), the plurality of first electrodes include at least a 1a electrode RX0 and a 1b electrode RX1 arranged in the second direction, the 1a electrode RX0 and the 1b electrode RX1 are respectively connected to independent wirings to be electrically separated, the plurality of second electrodes include a plurality of different 2a electrodes TX0, TX3, TX4, TX7 arranged adjacent to the 1a electrode RX0 and a plurality of different 2b electrodes TX0, TX3, TX4, TX7 arranged adjacent to the 1b electrode RX1, the 2a electrodes TX0, TX3, TX4, TX7 and the 2b electrodes TX0, TX3, TX4, TX7 are electrically connected to each other in a one-to-one correspondence through wiring, mutual capacitance is generated between each of the 2a electrodes TX0, TX3, TX4, TX4 and the 1a electrode RX0, and the mutual capacitance is generated between each of the 2b electrodes TX0, TX3, TX4, TX7 and the 1b electrode RX1, and the touch window area w is configured to cover the first number of first electrodes RX0, RX3, RX4, RX7 continuous in the first direction among the multiple first electrodes and the second number of second electrodes TX0, TX3, TX4, TX7 continuous in the second direction relative to each of the first number of first electrodes RX0, RX3, RX4, RX7 on the touch sensor board, and the multiple second electrodes are arranged to satisfy the condition that the same second electrode is discontinuously configured in the second direction in the touch window area w.

[0190] Furthermore, in order to improve the up-down split phenomenon, Fig.17As shown, preferably, in a touch sensor panel including a plurality of first electrodes RX0, RX1, RX2, RX3, RX4, RX5, RX6, RX7 arranged along a first direction (or row direction) and a second direction (or column direction) in the same layer, and a plurality of second electrodes TX0, TX3, TX4, TX7 arranged along the first direction (or row direction) and the second direction (or column direction), the plurality of first electrodes include at least a 1a electrode RX0 and a 1b electrode RX1 arranged along the second direction, the 1a electrode RX0 and the 1b electrode RX1 are respectively connected to independent wirings to be electrically separated, and the plurality of second electrodes include a plurality of different 2a electrodes TX0, TX3, TX4, TX7 arranged adjacent to the 1a electrode RX0 and a plurality of different 2b electrodes TX0, TX3, TX4, TX7 arranged adjacent to the 1b electrode RX1. , TX4, TX7, the 2a electrodes TX0, TX3, TX4, TX7 and the 2b electrodes TX0, TX3, TX4, TX7 are electrically connected to each other in a one-to-one correspondence through wiring, a mutual capacitance is generated between each of the 2a electrodes TX0, TX3, TX4, TX4 and the 1a electrode RX0, and the mutual capacitance is generated between each of the 2b electrodes TX0, TX3, TX4, TX7 and the 1b electrode RX1, and the touch window area w is configured to cover a plurality of first electrodes RX0, RX3, RX4, RX7 included in the first length and a plurality of second electrodes TX0, TX3, TX4, TX7 included in the second length on the touch sensor board, and the plurality of second electrodes are arranged to satisfy the condition that the same second electrodes in the touch window area w are not continuously configured in the direction of the second length.

[0191] Fig.18 It is shown Fig.17 FIG. 1 is a schematic diagram of a modified example of the touch window area w. Fig.18 As shown in the left figure of FIG. 1 , the touch window area w1 may be rectangular. For example, it may be a square. In this case, the length of one side may be in the range of 15 mm to 20 mm. Fig.18 As shown in the right figure of FIG. 1 , the touch window area w2 may be elliptical, with a major axis of 15 mm to 24 mm and a minor axis of 15 mm to 20 mm.

[0192] in addition, Figure 11a to Figure 11b The touch sensor board of the fourth embodiment shown in FIG. Fig.19 In addition, since the actual output value of the touch signal output at the part where the up-down split occurs is lower than the reference value (eg, '65') for determining whether the touch is touched, it is difficult to overcome the up-down split phenomenon using software (SW).

[0193] To improve Figure 11a to Figure 11bThe up-and-down splitting phenomenon occurs in the touch sensor board of the fourth embodiment shown in FIG. Figure 12a to Figure 12b In the touch sensor panel of the fifth embodiment shown in FIG. 1 , the same receiving electrodes in the touch window region w may have a discontinuous arrangement in the column direction. Figures 12a to 12b The touch sensor board of the fifth embodiment shown can also be Fig. 20 At this touch position (t), an up-and-down split occurs.

[0194] Figure 12a to Figure 12b The touch sensor board of the fifth embodiment shown in FIG. Figure 11a to Figure 11b The reason why the touch sensor panel of the fourth embodiment shown in FIG. 1 is split up and down is that the number of receiving electrodes RX adjacent to one driving electrode TX is smaller than that of the receiving electrodes RX adjacent to one driving electrode TX. Fig.17 In the case where 4 driving electrodes TX are arranged adjacent to one receiving electrode RX, the number of driving electrodes TX is less than 2. In particular, the larger the size of the touch window area is, the more serious the up-and-down splitting phenomenon is.

[0195] Therefore, in order to alleviate or prevent the upper and lower splitting phenomenon, it is preferred to add the condition that even if the touch window area w is moved, the same receiving electrodes in the touch window area w are discontinuous in the column direction and the number of another receiving electrodes (or driving electrodes) adjacent to a driving electrode (or receiving electrode) is at least 2.

[0196] in addition, Figure 9a to Figure 9b The touch sensor board of the second embodiment shown in FIG. Figure 10a to Figure 10b The touch sensor board of the third embodiment shown in FIG. Figure 13a to Figure 13b The touch sensor board of the sixth embodiment shown in FIG. Figure 14a to Figure 14b The touch sensor board of the seventh embodiment shown in the figure also has the phenomenon of up-down splitting, but the actual output value of the touch signal output after the remapping process is greater than or equal to the reference value used to determine whether it is touched, so the up-down splitting phenomenon can be overcome by software (SW). Figure 9a to Figure 9b The touch sensor board of the second embodiment shown in FIG. Figure 10a to Figure 10b The touch sensor board of the third embodiment shown in FIG. Figure 13a to Figure 13b The touch sensor board of the sixth embodiment shown in FIG. Figure 14a to Figure 14b In the case of the touch sensor panel of the seventh embodiment, when the same driving electrodes are also arranged discontinuously in the column direction in the touch window region w, it is expected that the vertical split phenomenon can be further alleviated or prevented.

[0197] In addition, the floating state is described Figure 9a to Figure 9b The touch sensor board of the second embodiment shown in FIG. Figure 10a to Figure 10b The touch sensor board of the third embodiment shown in FIG. Figure 13a to Figure 13b The touch sensor board of the sixth embodiment shown in FIG. Figure 14a to Figure 14bThe touch sensor board of the seventh embodiment shown in FIG. 1 has an actual output value of a touch signal output after remapping that is greater than or equal to a reference value for determining whether it is touched. However, the touch sensor board of the second embodiment, the touch sensor board of the third embodiment, the touch sensor board of the sixth embodiment, and the touch sensor board of the seventh embodiment are different from those of the touch sensor board of the seventh embodiment. Figure 2 The conventional touch sensor board LGM shown here hinders signal reduction. Fig.21 Specific instructions.

[0198] Fig.21 (a) is Figure 2 The conventional touch sensor panel shown covers a portion of a touch window area of ​​a predetermined size, Fig.21 (b) is Figure 8a A portion of the touch sensor panel of the first embodiment covering a touch window area of ​​a predetermined size, Fig.21 (c) is Fig.11a A portion of the touch sensor panel of the fourth embodiment covers a touch window area of ​​a predetermined size, Fig.21 (d) is Figure 9a A portion of the touch sensor panel of the second embodiment covers a touch window area of ​​a predetermined size, Fig.21 (e) is Fig.10a The touch sensor panel of the third embodiment shown covers a portion of a touch window area of ​​a predetermined size, Fig.21 (f) is Fig.13a and Fig.14a The touch sensor panels of the sixth and seventh embodiments shown cover a portion of a touch window area of ​​a predetermined size.

[0199] Fig.21 In (a) to (f), the predetermined size of the touch window area can be defined as an area larger than the touch area of ​​the remaining fingers, such as the touch area of ​​the thumb. Specifically, the predetermined size (or area) of the touch window area can be implemented as about 15mm*15mm or more and about 20mm*20mm or less, but preferably can be implemented as a size of about 16mm*16mm.

[0200] Fig.21 In (a) to (f), by minimizing the multiplication result of the number of unit cells constituting the same driving electrode TX and the number of unit cells constituting the same receiving electrode RX configured in the touch window area, the effect of LGM interfering with the signal can be reduced. The area of ​​one unit cell can be defined as 4mm*2mm.

[0201] Fig.21In (a), the number of unit cells constituting the same driving electrode TX arranged in the touch window area is one, and the number of unit cells constituting the same receiving electrode RX is 16, so the product value of these is 16.

[0202] Fig.21 In (b), the number of unit cells constituting the same driving electrode TX arranged in the touch window area is 4, and the number of unit cells constituting the same receiving electrode RX is 4, so the product value of these is 16.

[0203] Fig.21 In (c), the number of unit cells constituting the same driving electrode TX arranged in the touch window area is 8, and the number of unit cells constituting the same receiving electrode RX is 2, so the product value of these is 16.

[0204] on the contrary, Fig.21 In (d), the number of unit cells constituting the same driving electrode TX arranged in the touch window area is 2, and the number of unit cells constituting the same receiving electrode RX is 4, so the product value of these is 8.

[0205] Fig.21 In (e), the number of unit cells constituting the same driving electrode TX arranged in the touch window area is 2, and the number of unit cells constituting the same receiving electrode RX is 4, so the product value of these is 8.

[0206] Fig.21 In (f), the number of unit cells constituting the same driving electrode TX arranged in the touch window area is one, and the number of unit cells constituting the same receiving electrode RX is four, so the product value of these is 4. Among them, Fig.21 In case (f), the two receiving electrodes RX0 and RX3 located on both sides of one driving electrode TX0 are different, so each of the receiving electrodes RX0 and RX3 includes 4 LGM signals, so the final result value after the remapping process becomes 8.

[0207] Fig.21 In the case of (a), (b), and (c), the product value of the number of unit cells constituting the same driving electrode TX configured in the touch window area and the number of unit cells constituting the same receiving electrode RX is 16, and Fig.21In the cases of (d), (e), and (f), the product value of the number of unit cells constituting the same driving electrode TX configured in the touch window area and the number of unit cells constituting the same receiving electrode RX is 8, which is reduced by 1 / 2. When the result value is reduced, the size of the LGM signal is also reduced by 1 / 2. As a result, it can be seen that while reducing the number of the same driving electrodes and / or the same receiving electrodes contained in the touch window area, the result value of multiplying the number of unit cells constituting the same driving electrode TX configured in the touch window area and the number of unit cells constituting the same receiving electrode RX is minimized to less than 16 (predetermined value), so the effect of LGM interfering with the signal is reduced. However, the predetermined value 16 is only one embodiment of the present invention, and the scope of the present invention is not limited thereto. The predetermined value can be defined as various numerical values.

[0208] The features, structures, effects, etc. described in the above embodiments are included in one embodiment of the present invention, but are not limited to one embodiment. Furthermore, a person skilled in the art in the field to which the embodiments belong may implement the features, structures, effects, etc. illustrated in other embodiments by combining or modifying them. Therefore, the contents of these combinations and modifications should be deemed to be included in the scope of the present invention.

[0209] Furthermore, although the above description is centered on the implementation mode, these are merely examples and do not limit the present invention. A person skilled in the art of the present invention may also perform various modifications and applications not illustrated above within the scope of the essential features of the present implementation mode. For example, each component specifically appearing in the implementation mode may be implemented in a deformable manner. Furthermore, the differences in these modifications and applications should be interpreted as being included in the scope of the present invention as defined in the appended claims.

Claims

1. A touch sensor panel, comprising a plurality of driving electrodes and a plurality of receiving electrodes arranged on the same layer, wherein: The touch sensor panel includes at least one set, The set includes five columns of driving electrodes arranged along the row direction and four columns of receiving electrodes arranged between the five columns, each of the five columns is arranged with eight driving electrodes, and each of the four columns is arranged with two receiving electrodes. The receiving electrodes in the set are connected to different wirings, The four driving electrodes arranged on one side of each of the receiving electrodes in the set are connected to different wirings, Based on the receiving electrodes in the set, the driving electrodes arranged opposite to each other are connected to the same wiring. The four driving electrodes disposed on one side of the receiving electrodes in the second row of the receiving electrodes in the set are arranged in the same order as the four driving electrodes disposed on one side of the receiving electrodes in the first row of the receiving electrodes in the set. The lateral length of each driving electrode arranged in two columns located at both side edges of the set is half of the lateral length of each driving electrode arranged in the remaining columns. The touch window area is configured to cover a first number of receiving electrodes arranged in the row direction among the plurality of receiving electrodes on the touch sensor board and a second number of driving electrodes arranged in the column direction relative to each of the first number of receiving electrodes. The plurality of driving electrodes are arranged such that the same driving electrodes are not continuously arranged in the column direction in the touch window region.

2. The touch sensor board according to claim 1, wherein: The area of ​​each driving electrode arranged in two columns located at both side edges of the set is 1 / 8 of the area of ​​one receiving electrode.

3. A touch sensor panel, comprising a plurality of driving electrodes and a plurality of receiving electrodes arranged on the same layer, wherein: The touch sensor panel includes at least one set, The set includes 8 receiving electrodes in 4 columns arranged along the row direction and 8 driving electrodes in 8 columns arranged along the row direction, the driving electrodes in the 8 columns include driving electrodes arranged on both sides of each of the 8 receiving electrodes, each of the 4 columns is arranged with two receiving electrodes, and each of the 8 receiving electrodes has 4 driving electrodes arranged in the column direction on both sides, The eight receiving electrodes in the set are connected to different wirings, Taking each of the eight receiving electrodes in the set as a reference, four driving electrodes connected to different wirings are arranged on the left side, and four driving electrodes connected to different wirings are arranged on the right side. With each of the eight receiving electrodes in the set as a reference, the driving electrodes arranged opposite to each other are connected to the same wiring. Among the eight receiving electrodes in the set, eight driving electrodes are arranged on both sides of the receiving electrodes in the second row, and eight driving electrodes are arranged on both sides of the receiving electrodes in the first row. The area of ​​each driving electrode in the set is 1 / 8 of the area of ​​each receiving electrode in the set, The touch window area is configured to cover a first number of receiving electrodes arranged in the row direction among the plurality of receiving electrodes on the touch sensor board and a second number of driving electrodes arranged in the column direction relative to each of the first number of receiving electrodes. The plurality of driving electrodes are arranged such that the same driving electrodes are not continuously arranged in the column direction in the touch window region.

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