Touch sensor and touch input device including the same

Abstract

The present invention relates to a touch sensor and a touch input device, and more particularly, to a touch sensor formed in a single layer in a circular shape and a touch input device including the same. A touch input device according to one embodiment of the present invention includes a touch sensor in a circular shape including a plurality of electrodes arranged at intervals on a plurality of imaginary circles having a common center in a single layer.

Description

TECHNICAL FIELD

[0001] The present application relates to a touch sensor and a touch input device, and more particularly, to a circular touch sensor and a touch input device including the same. BACKGROUND

[0002] Various touch input devices are used to operate a computing system. For example, input devices such as buttons, keys, joysticks, and touch screens are used. Since a touch screen is simple and easy to operate, the use of the touch screen in operating a computing system is increasing.

[0003] With the development of technology, the development of a wearable computer is accelerating. The wearable computer refers to a computer that can be naturally worn like clothes, a watch, glasses, a jewel, and the like.

[0004] A smart phone and a tablet computer can be conveniently used with one finger or a touch pen, but there can be inconvenience in that it needs to be put in a pocket or a bag or held with a hand.

[0005] In contrast, a wearable computer can be worn on a wrist or worn like glasses, and thus portability can be more easy compared to a smart phone and a tablet computer. In particular, as one of wearable computers and as one of touch input devices, a wrist watch capable of searching for various services such as a diary, information, a notification, a stock market, and the like through wireless communication, i.e., various products related to a smart watch, have appeared. In particular, there are products having a circular touch screen in a conventional smart watch. Referring to Figure 1 An example will be described.

[0006] Figure 1 A perspective view of an example of a conventional smart watch is shown in Figure 2 is Figure 1 A schematic view of a pattern structure of a touch sensor included in the smart watch shown in

[0007] Figure 1 The smart watch 100 shown in Figure 2 may include a touch sensor 150 having a pattern as shown in

[0008] Figure 2 The pattern of the touch sensor 150 shown in Figure 2The drive electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 and the receive electrodes RX0, RX1, RX2, RX3, RX4, RX5, RX6, RX7 of the illustrated touch sensor 150 are arranged in a perpendicular intersecting pattern (hereinafter, referred to as a 'perpendicular intersecting pattern') on a single layer.

[0009] In Figure 2 In the illustrated conventional touch sensor 150 having a perpendicular intersecting pattern structure, a distorted electrode (hereinafter, referred to as a 'distorted electrode') in a rhombus shape is arranged in an edge portion of the touch sensor 150, and thus there is a problem in that touch sensing performance is degraded in the edge portion where the distorted electrode is located. In relation to this problem, there is a problem in that sensing signals are weakened or disappear when a touch (hereinafter, referred to as a 'wheel touch') is made in a clockwise direction or a counterclockwise direction to the edge portion of the touch sensor 150, and thus there is a problem in that a specific function according to the wheel touch is not performed.

[0010] Also, since the shape of the touch electrode located in the central portion of the touch sensor 150 is different from the shape of the distorted electrode, when the touch sensor 150 is driven in a mutual mode, mutual capacitance variation (Cm) between adjacent drive electrodes and receive electrodes is not uniform.

[0011] Also, when the touch sensor 150 is driven in a self mode in which a drive signal is supplied to both the drive electrodes and the receive electrodes to sense self capacitance variation (self cap), since the shape of the touch electrode located in the central portion of the touch sensor 150 is different from the shape of the distorted electrode, there is also a problem in that self capacitance variation (Cs) at all electrodes is different.

[0012] Also, for a smart watch, power consumption reduction is particularly important to secure a power consumption characteristic for use for a long time without charging, and there is a problem in that unnecessary power consumption for driving the distorted electrode of the touch sensor 150 occurs. SUMMARY

[0013] TECHNICAL PROBLEM

[0014] The technical problem to be solved by the present application is to provide a touch sensor capable of improving touch sensing performance of an edge portion of a circular touch sensor and a touch input device including the same.

[0015] Also, the technical problem to be solved by the present application is to provide a touch sensor in which mutual capacitance variation (Cm) or / and self capacitance variation (Cs) at each electrode in a circular touch sensor is uniform, and a touch input device including the same.

[0016] Also, the present invention aims to provide a touch sensor capable of reducing power consumption of a circular touch sensor and a touch input device including the same.

[0017] Also, the present invention aims to provide a touch sensor capable of sensing whether a touch is made at a central portion of a circular touch sensor and a touch input device including the same.

[0018] Also, the present invention aims to provide a touch sensor capable of providing a routing method and a trace connection structure in a circular touch sensor and a touch input device including the same.

[0019] Technical Solution

[0020] A touch input device according to one embodiment of the present invention includes a circular touch sensor including a plurality of electrodes arranged at a predetermined interval on a plurality of rings or a plurality of circle shapes having a common center and configured in a single layer.

[0021] In this case, the central portion of the touch sensor can further include a circular electrode.

[0022] A touch input device according to another embodiment of the present invention includes a circular touch sensor including a plurality of electrodes arranged at a predetermined interval on a plurality of imaginary circles having a common center and configured in a single layer.

[0023] A touch sensor according to one embodiment of the present invention includes a plurality of first electrodes including a first group of first electrodes, a second group of first electrodes surrounding the first group of first electrodes, a third group of first electrodes surrounding the second group of first electrodes, and a fourth group of first electrodes surrounding the third group of first electrodes, and a plurality of second electrodes including one or more 2-0 electrodes arranged between the first group of first electrodes and the second group of first electrodes, a plurality of 2-1 electrodes, a plurality of 2-2 electrodes, and a plurality of 2-3 electrodes arranged between the second group of first electrodes and the third group of first electrodes, and a plurality of 2-4 electrodes, a plurality of 2-5 electrodes, a plurality of 2-6 electrodes, and a plurality of 2-7 electrodes arranged between the third group of first electrodes and the fourth group of first electrodes.

[0024] A touch sensor according to another embodiment of the present application includes a plurality of first electrodes including a first group of first electrodes; a second group of first electrodes surrounding the first group of first electrodes; a third group of first electrodes surrounding the second group of first electrodes; and a fourth group of first electrodes surrounding the third group of first electrodes; and a plurality of second electrodes including one or more 2-0 electrodes configured between the first group of first electrodes and the second group of first electrodes; a plurality of 2-1 electrodes and a plurality of 2-2 electrodes configured between the second group of first electrodes and the third group of first electrodes; and a plurality of 2-3 electrodes, a plurality of 2-4 electrodes, and a plurality of 2-5 electrodes configured between the third group of first electrodes and the fourth group of first electrodes.

[0025] Technical Effects

[0026] In the case of using the touch input device according to the embodiment of the present application, there is an advantage that it is possible to improve the touch sensing performance of the edge portion of the circular touch sensor.

[0027] Also, there is an advantage that the mutual capacitance variation (Cm) or / and the self-capacitance variation (Cs) at each electrode within the circular touch sensor is uniform.

[0028] Also, there is an advantage that it is possible to reduce the power consumption of the circular touch sensor.

[0029] Also, there is an advantage that it is possible to sense whether or not a touch is made at the central portion of the circular touch sensor. Also, there is an advantage that it is possible to distinguish between a water droplet and a touch.

[0030] Also, there is an advantage that it is possible to provide a routing method and a trace connection structure at the circular touch sensor. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a perspective view of an example of a conventional smart watch.

[0032] Figure 2 is Figure 1 is a schematic view of a pattern structure of a touch sensor included in the smart watch shown in FIG. 1.

[0033] Figure 3 is a schematic view for explaining an electrode pattern structure of a touch sensor 350 according to an embodiment of the present application.

[0034] Figure 4 is a schematic view for explaining Figure 3 is a schematic view for explaining an arrangement structure of a plurality of electrodes TX0, …, TX7, RX0, …, RX7 included in the touch sensor 350 shown in FIG. 2.

[0035] Figure 5 is a schematic diagram for explaining an electrode pattern structure of a touch sensor 550 according to another embodiment of the present application.

[0036] Figure 6 is a schematic diagram for explaining Figure 3 a problem that can occur in the touch sensor 350 shown.

[0037] Figures 7 to 10 is a schematic diagram for explaining Figure 5 the routing of a plurality of electrodes included in the touch sensor according to an embodiment of the present application shown.

[0038] Figure 11 is a schematic diagram for explaining the number of traces of a touch sensor according to an embodiment of the present application.

[0039] Figure 12 is Figure 9 another example of the schematic diagram.

[0040] Figure 13 is a schematic diagram for explaining the routing and the number of traces of a touch sensor according to Figure 12

[0041] Figure 14 is Figure 3 a modification of the touch sensor 350 shown.

[0042] Figure 15 is Figure 5 a modification of the touch sensor 550 shown.

[0043] Figure 16 , Figure 17a and Figure 17b are schematic diagrams of still another routing and trace configuration structure of a touch sensor 550 according to Figure 5 another embodiment of the present application shown.

[0044] Figure 18a is a schematic diagram for explaining an electrode pattern structure of a touch sensor 1850 according to still another embodiment of the present application.

[0045] Figure 18b and Figure 18c are schematic diagrams for explaining Figure 18a the routing and trace connection structure of the touch sensor 1850 shown.

[0046] Figure 19 is a schematic diagram for explaining an electrode pattern structure of a touch sensor 1950 according to still another embodiment of the present application.

[0047] Figure 20 ​The simulation environments used to obtain the simulation results described in Table 2 are shown, reflecting the YOCTA stack-up.

[0048] Figure 21 In order to obtain the simulation results recorded in Table 2 Figure 5 The touch sensor 550 shown Figure 18a The touch sensor 1850 shown and Figure 19 The image shows a simulated representation of the base cross-capacity value (Cm) of the touch sensor 1950 in an untouched state.

[0049] Figure 22 (a) through (c) show Figure 21 The actual simulated output data under the given conditions.

[0050] Figure 23 (a) to (c) are comparisons in Figure 5 The touch sensor 550 shown Figure 18a The touch sensor 1850 shown and Figure 19 The graph shows the locations where the mutual capacitance change ΔCm occurs at its maximum (Max) and minimum (Min) points in the touch sensor 1950, representing the amount of Cm change.

[0051] Figure 24 (a) through (c) are simulations Figure 5 The touch sensor 550 shown Figure 18a The touch sensor 1850 shown and Figure 19 The output data of the self-capacitance (Cs) of each of the touch sensors 1950 shown.

[0052] Figure 25 This was done to obtain the results of Simulation 1 (Sim.1), Simulation 2 (Sim.2), and Simulation 3 (Sim.3) as shown in Table 2. Figure 5 The touch sensor 550 shown Figure 18a The touch sensor 1850 shown and Figure 19 The touch sensor 1950 shown uses respectively The conductive rod appears in three simulations (Sim.1, Sim.2, Sim.3).

[0053] Figure 26 It is a simulation pair Figure 5 The touch sensor 550 shown Figure 18a The touch sensor 1850 shown and Figure 19 The touch sensor 1950 shown performs respectively Figure 25The left-hand diagram illustrates the maximum error (Maxerror) and RMS error when the straight line is touched.

[0054] Figure 27 It is a graph showing the maximum error and RMS error at each position (1, 2, 3, 4).

[0055] Figure 28 It is a simulation pair Figure 5 The touch sensor 550 shown Figure 18a The touch sensor 1850 shown and Figure 19 The touch sensor 1950 shown performs respectively Figure 25 The middle graph shows the maximum error (Max error) and RMS error (RMS error) in the case of the θ line touching the middle line.

[0056] Figure 29 It is a graph showing the maximum error and RMS error for each angle (1, 2, 3).

[0057] Figure 30 It is a simulation pair Figure 5 The touch sensor 550 shown Figure 18a The touch sensor 1850 shown and Figure 19 The touch sensor 1950 shown performs respectively Figure 25 The diagram on the right shows the maximum error (Max error) and RMS error (RMS error) in the case of wheel touch.

[0058] Figure 31 It is a graph showing the maximum error (Maxerror) and RMS error (RMS error) for each wheel position (1, 2).

[0059] Figure 32 This is a schematic diagram illustrating the electrode pattern structure of a touch sensor 3250 according to another embodiment of the present invention.

[0060] Figure 33 yes Figure 32 The diagram shows the routing and trace connection structure of the touch sensor 3250.

[0061] Figure 34 This is a schematic diagram illustrating the electrode pattern structure of a touch sensor 3450 according to another embodiment of the present invention.

[0062] Figure 35 yes Figure 34A schematic view of a routing and trace connection structure of the touch sensor 3450 shown.

[0063] Reference Signs List

[0064] 100: smart watch

[0065] 150, 350, 550, 1850, 1950, 3250, 3450: touch sensor DETAILED DESCRIPTION

[0066] The present application will now be specifically described below with reference to the accompanying drawings, which show specific embodiments capable of embodying the present application as examples. These embodiments are specifically described so that those skilled in the art are able to carry out the present application. It should be understood that various embodiments of the present application, although different from each other, are not necessarily mutually exclusive. For example, the specific shape, structure, and characteristics described herein can be implemented in other embodiments without departing from the spirit and scope of the present application with respect to one embodiment. Also, it should be understood that the position or configuration of individual components within each disclosed embodiment can be changed without departing from the spirit and scope of the present application. Therefore, the following specific description is not intended to be limiting, and the scope of the present application is limited only to the scope equivalent to the scope of claims and the appended claims as appropriate. Like reference numerals in the drawings refer to the same or similar functions in each aspect.

[0067] A touch sensor according to an embodiment of the present application and a touch input device including the same will be described below with reference to the accompanying drawings.

[0068] In the description of the touch sensor and the touch input device including the same according to various embodiments of the present application, a smart watch is described as one example, but this is only one example, and the technical idea or features of the present application can be directly applied to a touch input device having a shape close to a circle such as a circular screen or a touch screen having an elliptical or rectangular shape. This will be described in detail below with reference to the accompanying drawings.

[0069] Figure 3 A schematic view for explaining an electrode pattern structure of a touch sensor 350 according to one embodiment of the present application.

[0070] Referring to Figure 3 The touch sensor 350 according to one embodiment of the present application has a circular structure and includes a plurality of electrodes TX0,..., TX7, RX0,..., RX7 arranged in one layer.

[0071] The plurality of electrodes TX0,..., TX7, RX0,..., RX7 can be spaced apart within a circle having a predetermined diameter. The diameter of the circle can be approximately 35 mm. The plurality of electrodes TX0,..., TX7, RX0,..., RX7 arranged within the circle can be arranged in a predetermined arrangement.

[0072] The plurality of electrodes TX0,..., TX7, RX0,..., RX7 includes a plurality of first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 and a plurality of second electrodes RX0, RX1, RX2, RX3, RX4, RX5, RX6, RX7.

[0073] When the touch sensor 350 according to one embodiment of the present application is driven in the mutual sensing mode, the plurality of first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 can be driving electrodes outputting touch driving signals, and the plurality of second electrodes RX0, RX1, RX2, RX3, RX4, RX5, RX6, RX7 can be receiving electrodes receiving sensing signals. Here, the plurality of first electrodes can be receiving electrodes and the plurality of second electrodes can be driving electrodes in the opposite manner.

[0074] In addition, when the touch sensor 350 according to one embodiment of the present application is driven in the self-sensing mode, the plurality of electrodes TX0,..., TX7, RX0,..., RX7 can output touch driving signals and receive sensing signals.

[0075] The plurality of first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 can be grouped into one group, and the touch sensor 350 can include a plurality of first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 grouped in this manner. For example, the touch sensor 350 can include first electrodes of a first group, first electrodes of a second group, first electrodes of a third group, and first electrodes of a fourth group. The first electrodes (e.g., TX0) corresponding to each group can be electrically connected to each other by a trace.

[0076] The first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 of the first group can be spaced apart in a circular shape at the center portion. Each of the first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 can have a sector shape. The sector shape includes not only a geometrically complete sector shape, but also a shape close to or similar to the sector shape. Thus, although the shape of the plurality of first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 arranged in a circular shape at the center portion is not a perfect circle, the shape can be considered as a circle in the present application. Figure 3The first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 of the first group can each have a surface area that is the same as the surface area of the first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 of the second group.

[0077] The first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 of the second group can be arranged apart from each other within a ring or circular shape that encloses the first electrodes of the first group, and the arrangement order can correspond to the arrangement order of the first electrodes of the first group. The first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 of the second group can each have a surface area that is the same as the surface area of the first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 of the first group.

[0078] The first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 of the third group can be arranged apart from each other within a ring or circular shape that encloses the first electrodes of the second group, and the arrangement order can correspond to the arrangement order of the first electrodes of the second group. The first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 of the third group can each have a surface area that is the same as the surface area of the first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 of the second group.

[0079] The first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 of the fourth group can be arranged apart from each other within a ring or circular shape that encloses the first electrodes of the third group, and the arrangement order can correspond to the arrangement order of the first electrodes of the third group. The first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 of the fourth group can each have a surface area that is the same as the surface area of the first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 of the third group.

[0080] One or more second-0 electrodes RX0 can be configured between the first electrodes of the first group and the first electrodes of the second group. The one or more second-0 electrodes RX0 can have a ring or circular shape.

[0081] A plurality of 2-1 electrodes RX1, a plurality of 2-2 electrodes RX2, and a plurality of 2-3 electrodes RX3 can be configured between the first electrodes of the second group and the first electrodes of the third group. The plurality of 2-1 electrodes RX1, the plurality of 2-2 electrodes RX2, and the plurality of 2-3 electrodes RX3 can be arranged at intervals within a ring shape or a circular shape. The arrangement order can be the order of 2-1 electrodes RX1, 2-2 electrodes RX2, 2-3 electrodes RX3, and 2-4 electrodes RX4 repeated in a clockwise or counterclockwise direction. Among them, the plurality of 2-1 electrodes RX1 can be 4, the plurality of 2-2 electrodes RX2 can be 8, and the plurality of 2-3 electrodes RX3 can be 4. The upper area of the 2-1 electrode RX1 and the 2-3 electrode RX3 can be twice the upper area of the 2-2 electrode RX2. Among them, the arrangement order can be the order of 2-1 electrodes RX1, 2-2 electrodes RX2, 2-3 electrodes RX3 repeated in a clockwise direction or a counterclockwise direction.

[0082] The 2-1 electrode RX1 can be configured between the adjacent two first electrodes (for example, TX1 and TX2 / TX3 and TX4 / TX5 and TX6 / TX7 and TX0) in the second group and the adjacent two first electrodes (for example, TX1 and TX2) in the third group. The 2-3 electrode RX3 can be configured between the adjacent two first electrodes (for example, TX2 and TX3) in the second group and the adjacent two first electrodes (for example, TX2 and TX3) in the third group.

[0083] A plurality of 2-4 electrodes RX4, a plurality of 2-5 electrodes RX5, a plurality of 2-6 electrodes RX6, and a plurality of 2-7 electrodes RX7 can be configured between the first electrodes of the third group and the first electrodes of the fourth group. The plurality of 2-4 electrodes RX4, the plurality of 2-5 electrodes RX5, the plurality of 2-6 electrodes RX6, and the plurality of 2-7 electrodes RX7 can be arranged at intervals within a ring shape or a circular shape. The arrangement order can be the order of 2-4 electrodes RX4, 2-5 electrodes RX5, 2-6 electrodes RX6, 2-7 electrodes RX7, 2-6 electrodes RX6, and 2-5 electrodes RX5 repeated in a clockwise direction or a counterclockwise direction. Among them, the plurality of 2-4 electrodes RX4 can be 4, the plurality of 2-5 electrodes RX5 can be 8, the plurality of 2-6 electrodes RX6 can be 8, and the plurality of 2-7 electrodes RX7 can be 4. The upper area of the 2-4 electrode RX4 and the 2-7 electrode RX7 can be twice the upper area of the 2-5 electrode RX5 or the 2-6 electrode RX6. Among them, the arrangement order can be the order of 2-4 electrodes RX4, 2-5 electrodes RX5, 2-6 electrodes RX6, 2-7 electrodes RX7 repeated in a clockwise direction or a counterclockwise direction.

[0084] The 2-4th electrode RX4 can be arranged between adjacent two first electrodes (e.g., TX1 and TX2) in the third group and adjacent two first electrodes (e.g., TX1 and TX2) in the fourth group. The 2-7th electrode RX7 can be arranged between adjacent two first electrodes (e.g., TX2 and TX3) in the third group and adjacent two first electrodes (e.g., TX2 and TX3) in the fourth group.

[0085] In addition, although not shown separately, in the case where the diameter of the touch sensor 350 is increased, one or more groups of first electrodes can be added, and second electrodes can be arranged between the added groups of first electrodes.

[0086] The following uses Figure 4 to explain another way Figure 3 the arrangement of the plurality of electrodes TX0,..., TX7, RX0,..., RX7 included in the touch sensor 350 shown.

[0087] Figure 4 is used to explain Figure 3 the arrangement of the plurality of electrodes TX0,..., TX7, RX0,..., RX7 included in the touch sensor 350 shown.

[0088] Figure 4 the center O shown corresponds to Figure 3 the center of the touch sensor 350 shown, the first to seventh imaginary circles C1 to C7 are concentric circles having the common center O. Here, the first imaginary circle C1 is defined as the concentric circle closest to the center O, and the seventh imaginary circle C7 is defined as the concentric circle farthest from the center O.

[0089] Referring to Figure 3 and Figure 4 , the plurality of electrodes TX0,..., TX7, RX0,..., RX7 can be arranged on a plurality of concentric circles. More specifically, the plurality of electrodes TX0,..., TX7, RX0,..., RX7 can be arranged on a plurality of imaginary circles C1, C2, C3, C4, C5, C6, C7 having the center O.

[0090] Referring to Figure 3 and Figure 3 , the plurality of first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 can be arranged on the first imaginary circle C1, the second imaginary circle C3, the fifth imaginary circle C5, and the seventh imaginary circle C7, respectively. The following will be described in detail.

[0091] The plurality of first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 are each arranged one on the first imaginary circle C1.

[0092] The plurality of first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 arranged on the first imaginary circle C1 can each have a fan shape. The fan shape includes not only a geometrically complete fan shape, but also a shape similar to or close to the fan shape. Thus, although the plurality of first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 arranged on the first imaginary circle C1 have a complete fan shape in the embodiment, it should be understood that a shape in which portions of the fan shape (or other fan shapes with a smaller radius than the fan shape) are removed is also included in the fan shape. Figure 4

[0093] The plurality of first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 arranged on the first imaginary circle C1 can be arranged in the order of the 1-0 electrode TX0, the 1-1 electrode TX1, the 1-2 electrode TX2, the 1-3 electrode TX3, the 1-4 electrode TX4, the 1-5 electrode TX5, the 1-6 electrode TX6, and the 1-7 electrode TX7 in a clockwise direction. The arrangement order is an example, and the arrangement order can be different according to design.

[0094] The plurality of first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 arranged on the first imaginary circle C1 can each have a fan shape. The fan shape includes not only a geometrically complete fan shape, but also a shape similar to or close to the fan shape. Thus, although the plurality of first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 arranged on the first imaginary circle C1 have a complete fan shape in the embodiment, it should be understood that a shape in which portions of the fan shape (or other fan shapes with a smaller radius than the fan shape) are removed is also included in the fan shape.

[0095] Each of the plurality of first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 arranged on the third imaginary circle C3 can have a fan shape. The fan shape includes not only a geometrically complete fan shape, but also a shape similar to or close to the fan shape. Thus, although the plurality of first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 arranged on the third imaginary circle C3 have a complete fan shape in the embodiment, it should be understood that a shape in which portions of the fan shape (or other fan shapes with a smaller radius than the fan shape) are removed is also included in the fan shape.

[0096] The plurality of first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 arranged on the third imaginary circle C3 can be arranged in a ring shape or a circular shape. The plurality of first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 arranged on the third imaginary circle C3 can be divided into eight parts by equally dividing a single pattern in a ring shape or a circular shape. Alternatively, the plurality of first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 arranged on the third imaginary circle C3 can be a shape in which portions of a fan shape (or other fan shapes with a smaller radius than the fan shape) are removed.

[0097] ​The top surface area of each of the plurality of first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 arranged on the third imaginary circle C3 can be the same. The arrangement positions of the plurality of first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 arranged on the third imaginary circle C3 can correspond to the arrangement positions of the plurality of first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 arranged on the first imaginary circle C1. Among them, by comparing the top surface area of a first electrode (for example, TX0) arranged on the corresponding third imaginary circle C3 and a first electrode (for example, TX0) arranged on the first imaginary circle C1, the top surface area of the first electrode (for example, TX0) arranged on the third imaginary circle C3 can be larger.

[0098] There is one of the plurality of first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 arranged on the fifth imaginary circle C5.

[0099] The plurality of first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 arranged on the fifth imaginary circle C5 can be arranged in a ring shape or a circular shape. The plurality of first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 arranged on the fifth imaginary circle C5 can be obtained by equally dividing a single pattern in a ring shape or a circular shape into eight parts. Or the plurality of first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 arranged on the fifth imaginary circle C5 can be in a shape obtained by removing each part of a fan shape (or other fan shape with a smaller radius than the fan shape).

[0100] The top surface area of each of the plurality of first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 arranged on the fifth imaginary circle C5 can be the same. The arrangement positions of the plurality of first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 arranged on the fifth imaginary circle C5 can correspond to the arrangement positions of the plurality of first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 arranged on the third imaginary circle C3. Among them, by comparing the top surface area of a first electrode (for example, TX0) arranged on the corresponding fifth imaginary circle C5 and a first electrode (for example, TX0) arranged on the third imaginary circle C3, the top surface area of the first electrode (for example, TX0) arranged on the fifth imaginary circle C5 can be larger.

[0101] There is one of the plurality of first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 arranged on the seventh imaginary circle C7.

[0102] The first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 arranged on the seventh imaginary circle C7 can be the remaining shape after removing the apex portion and the arc portion of the sector. Alternatively, the first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 arranged on the seventh imaginary circle C7 can be arranged in a ring shape or a circular shape. The first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 arranged on the seventh imaginary circle C7 can be equally divided into eight pieces from a single pattern in a ring shape or a circular shape.

[0103] The upper area of each of the first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 arranged on the seventh imaginary circle C7 can be the same. The arrangement positions of the first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 arranged on the seventh imaginary circle C7 can correspond to the arrangement positions of the first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 arranged on the fifth imaginary circle C5. Among them, by comparing the upper areas of the first electrode (for example, TX0) arranged on the corresponding seventh imaginary circle C7 and the first electrode (for example, TX0) arranged on the fifth imaginary circle C5, the upper area of the first electrode (for example, TX0) arranged on the seventh imaginary circle C7 can be larger.

[0104] The sum of the upper areas of the 1-0th electrode TX0 located on the first imaginary circle C1, the third imaginary circle C3, the fifth imaginary circle C5, and the seventh imaginary circle C7, the sum of the upper areas of the 1-1th electrode TX1 located on the first imaginary circle C1, the third imaginary circle C3, the fifth imaginary circle C5, and the seventh imaginary circle C7, the sum of the upper areas of the 1-2th electrode TX2 located on the first imaginary circle C1, the third imaginary circle C3, the fifth imaginary circle C5, and the seventh imaginary circle C7, the sum of the upper areas of the 1-3th electrode TX3 located on the first imaginary circle C1, the third imaginary circle C3, the fifth imaginary circle C5, and the seventh imaginary circle C7, the sum of the upper areas of the 1-4th electrode TX4 located on the first imaginary circle C1, the third imaginary circle C3, the fifth imaginary circle C5, and the seventh imaginary circle C7, the sum of the upper areas of the 1-5th electrode TX5 located on the first imaginary circle C1, the third imaginary circle C3, the fifth imaginary circle C5, and the seventh imaginary circle C7, the sum of the upper areas of the 1-6th electrode TX6 located on the first imaginary circle C1, the third imaginary circle C3, the fifth imaginary circle C5, and the seventh imaginary circle C7, and the sum of the upper areas of the 1-7th electrode TX7 located on the first imaginary circle C1, the third imaginary circle C3, the fifth imaginary circle C5, and the seventh imaginary circle C7 can be the same, and the sum of the upper areas can be, for example, 19.1π mm 2 .

[0105] In addition, referring again to Figure 3 and Figure 3 , a plurality of second electrodes RX0, RX1, RX2, RX3, RX4, RX5, RX6, RX7 can be arranged on the second imaginary circle C2, the fourth imaginary circle C4, and the sixth imaginary circle C6. Among them, the second imaginary circle C2 is arranged between the first imaginary circle C1 and the third imaginary circle C3, the fourth imaginary circle C4 is arranged between the third imaginary circle C3 and the fifth imaginary circle C5, and the sixth imaginary circle C6 is arranged between the fifth imaginary circle C5 and the seventh imaginary circle C7.

[0106] A plurality of 2-0 electrodes RX0 are arranged on the second imaginary circle C2, a plurality of 2-1 electrodes RX1, a plurality of 2-2 electrodes RX2, and a plurality of 2-3 electrodes RX3 are arranged on the fourth imaginary circle C4, and a plurality of 2-4 electrodes RX4, a plurality of 2-5 electrodes RX5, a plurality of 2-6 electrodes RX6, and a plurality of 2-7 electrodes RX7 can be arranged on the sixth imaginary circle C6.

[0107] The plurality of 2-0 electrodes RX0 arranged on the second imaginary circle C2 can be two 2-0 electrodes RX0. The two 2-0 electrodes RX0 can be arranged in a ring shape or a circular shape. The two 2-0 electrodes RX0 arranged on the second imaginary circle C2 can be divided into two parts by equidividing a single pattern in a ring shape or a circular shape. Among them, the sum of the upper areas of the two 2-0 electrodes RX0 can be 18.8πmm 2 .

[0108] The 4 2-1 electrodes RX1, 8 2-2 electrodes RX2, and 4 2-3 electrodes RX3 arranged on the fourth imaginary circle C4 are arranged in a ring shape or a circular shape. The 4 2-1 electrodes RX1, 8 2-2 electrodes RX2, and 4 2-3 electrodes RX3 arranged on the fourth imaginary circle C4 can be divided into 16 parts by equidividing a single pattern in a ring shape or a circular shape. Among them, the upper area of one 2-1 electrode RX1 can be twice that of one 2-2 electrode RX2. And the upper area of one 2-3 electrode RX3 can be twice that of one 2-2 electrode RX2.

[0109] The 4 2-1 electrodes RX1, 8 2-2 electrodes RX2, and 4 2-3 electrodes RX3 arranged on the fourth imaginary circle C4 can have a predetermined arrangement order. For example, the predetermined arrangement order can be the order of 2-1 electrode RX1, 2-2 electrode RX2, 2-3 electrode RX3, and 2-2 electrode RX2 repeated in a clockwise or counterclockwise direction.

[0110] The sum of the upper areas of the 4 second-1 electrodes RX1, the sum of the upper areas of the 8 second-2 electrodes RX2, and the sum of the upper areas of the 4 second-3 electrodes RX3 arranged on the fourth imaginary circle C4 can be the same. For example, the sum of the upper areas of the 4 second-1 electrodes RX1, the sum of the upper areas of the 8 second-2 electrodes RX2, and the sum of the upper areas of the 4 second-3 electrodes RX3 can be 19.4πmm 2 .

[0111] In addition, the arrangement order of the 4 second-1 electrodes RX1, the 8 second-2 electrodes RX2, and the 4 second-3 electrodes RX3 arranged on the fourth imaginary circle C4 can be other arrangement orders.

[0112] Referring again to Figure 3 , the 4 second-4 electrodes RX4, the 8 second-5 electrodes RX5, the 8 second-6 electrodes RX6, and the 4 second-7 electrodes RX7 arranged on the sixth imaginary circle C6 are arranged in a circular or annular shape. The 4 second-4 electrodes RX4, the 8 second-5 electrodes RX5, the 8 second-6 electrodes RX6, and the 4 second-7 electrodes RX7 arranged on the sixth imaginary circle C6 can be a single pattern divided into 24 obtained in an annular or circular shape. Among them, the upper area of one second-4 electrode RX4 can be twice that of one second-5 electrode RX5 or one second-6 electrode RX6. Also, the upper area of one second-7 electrode RX7 can be twice that of one second-5 electrode RX5 or one second-6 electrode RX6.

[0113] The 4 second-4 electrodes RX4, the 8 second-5 electrodes RX5, the 8 second-6 electrodes RX6, and the 4 second-7 electrodes RX7 arranged on the sixth imaginary circle C6 can have a predetermined arrangement order. For example, the predetermined arrangement order can be the order of the second-4 electrode RX4, the second-5 electrode RX5, the second-6 electrode RX6, the second-7 electrode RX7, the second-6 electrode RX6, and the second-5 electrode RX5 repeated in the clockwise or counterclockwise direction.

[0114] The sum of the upper areas of the 4 second-4 electrodes RX4, the sum of the upper areas of the 8 second-5 electrodes RX5, the sum of the upper areas of the 8 second-6 electrodes RX6, and the sum of the upper areas of the 4 second-7 electrodes RX7 arranged on the sixth imaginary circle C6 can be the same. For example, the sum of the upper areas of the plurality of second-4 electrodes RX4, the sum of the upper areas of the plurality of second-5 electrodes RX5, the sum of the upper areas of the plurality of second-6 electrodes RX6, and the sum of the upper areas of the plurality of second-7 electrodes RX7 can be 19.1πmm 2 .

[0115] In addition, the arrangement order of the 4 second-4 electrodes RX4, the 8 second-5 electrodes RX5, the 8 second-6 electrodes RX6 and the 4 second-7 electrodes RX7 arranged on the sixth imaginary circle C6 can be other arrangement orders.

[0116] Referring to Figure 3 , any one first electrode (e.g., TX0) of the plurality of first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7 on the first imaginary circle C1 and the first electrode TX0 on the third imaginary circle C3 corresponding to the any one first electrode TX0 are configured with a second-0 electrode RX0.

[0117] The first electrode TX0 on the third imaginary circle C3 and the first electrode TX0 on the fifth imaginary circle C5 corresponding to the first electrode TX0 on the third imaginary circle C3 are configured with half of a second-1 electrode RX1, a second-2 electrode RX2 and half of a second-3 electrode RX3. Among them, the other half of the second-1 electrode RX1 is configured between the adjacent other first electrode TX7 on the third imaginary circle and the adjacent other first electrode TX7 on the fifth imaginary circle C5. And the other half of the second-3 electrode RX3 is configured between the adjacent still other first electrode TX1 on the third imaginary circle and the adjacent still other first electrode TX1 on the fifth imaginary circle C5.

[0118] The first electrode TX0 on the fifth imaginary circle C5 and the first electrode TX0 on the seventh imaginary circle C7 corresponding to the first electrode TX0 on the fifth imaginary circle C5 are configured with half of a second-4 electrode RX4, a second-5 electrode RX5, a second-6 electrode RX6 and half of a second-7 electrode RX7. Among them, the other half of the second-4 electrode RX4 is configured between the adjacent other first electrode TX7 on the fifth imaginary circle C5 and the adjacent other first electrode TX7 on the seventh imaginary circle C7. And the other half of the second-7 electrode RX7 is configured between the adjacent still other first electrode TX1 on the fifth imaginary circle C5 and the adjacent still other first electrode TX1 on the seventh imaginary circle C7.

[0119] In addition, referring to Figure 2In the diagram at the bottom right, with a touch sensor 350 having a diameter of 35mm and a radius of 17.5mm, the length from the center to the first electrode on the first imaginary circle C1 is 2.5mm, the length from the center to the second electrode RX0 on the second imaginary circle C2 is 5.1mm, the length from the center to the first electrode on the third imaginary circle C3 is 7.5mm, the length to the second electrode on the fourth imaginary circle C4 is 10.7mm, the length from the center to the first electrode on the fifth imaginary circle C5 is 12.8mm, the length from the center to the second electrode on the sixth imaginary circle C6 is 15.5mm, and the length from the center to the first electrode on the seventh imaginary circle C7 can be 17.5mm. The interval between the first and second electrodes can be changed according to the actual routing.

[0120] As above, Figure 3 The touch sensor 350 shown according to one embodiment of the present invention can be composed of eight first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, and TX7, and eight second electrodes RX0, RX1, RX2, RX3, RX4, RX5, RX6, and RX7. Therefore, the total number of channels is 8-8, which can be configured as a total of 16 channels.

[0121] Furthermore, the number of receiving channels (RX channels) is an even number of 8, thus also having the advantage of being able to perform differential sensing.

[0122] Furthermore, since the surface area of ​​each channel is the same, it also has the advantage that the self-capacitance change occurs uniformly when multiple electrodes are driven in self-sensing mode.

[0123] Furthermore, since the surface area of ​​each channel is the same, it also has the advantage that the mutual capacitance change (Cm) output from the receiving electrode occurs uniformly when multiple electrodes are driven in interactive sensing mode. A Cm value of approximately 200 pF or less can be achieved.

[0124] Furthermore, possessing Figure 3 The existing vertically intersecting pattern structure of the touch sensor shown exhibits poor touch coordinate recognition during wheel touch due to a decrease in the touch sensing SNR. Figures 7 to 10 The touch sensor shown has multiple electrodes arranged along the shape of its edge, which improves the touch sensing SNR and thus has the advantage of being able to accurately determine touch coordinates.

[0125] and, Figure 5 The touch sensor shown has the advantage of being implemented as a full node with a second electrode as a reference and first electrodes arranged on both sides.

[0126] Furthermore, a total of 37 traces can be created through a pre-defined routing method. See below for further details. Figure 5 The routing method and the total number of traces are explained.

[0127] Figure 3 This is a schematic diagram of the electrode pattern structure of a touch sensor 550 according to another embodiment of the present invention.

[0128] Figure 3 The touch sensor 550 shown in another embodiment of the present invention is compared to Figure 4 The touch sensor 350 shown according to one embodiment of the present invention differs only in that a second-0 electrode RX0 is added in the center. Therefore, except for the following description, the contents are the same as... Figure 3 or Figure 5 The content shown is the same. The following mainly explains the differences. Figure 3 The part.

[0129] See Figure 5 According to another embodiment of the present invention, a second-0 electrode RX0 is disposed in the central portion of the touch sensor 550. Figure 3 The first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, and TX7 of the first group are arranged to surround the second-0 electrode RX0.

[0130] or, Figure 4 The touch sensor 550 shown according to another embodiment of the present invention is in Figure 5 The touch sensor 350 shown is further configured with a second-0 electrode RX0, which can be configured in... Figure 3 On the center O shown.

[0131] This Figure 6 The touch sensor 550 shown according to another embodiment of the present invention can solve the problem. Figure 6 The touch sensor 350 shown may have the following problems. See [link / reference] Figure 3 Please provide an explanation.

[0132] Figure 6 It is used for explanation Figure 3 The diagram illustrates potential problems in the touch sensor 350. Specifically, Figure 6 This shows the predetermined test conductive rod T in Figure 6FIG. 2 is a schematic diagram showing a case where the test conductive bar T is moved on the touch sensor 350, and the left side drawing is a drawing in which the test conductive bar T is positioned at an arbitrary position on the touch sensor 350, and the right side drawing is a drawing in which the test conductive bar T is positioned at the center of the touch sensor 350. Here, the test conductive bar T can have a diameter of about , and is composed of a conductive substance.

[0133] As shown in the left side drawing to the right side drawing of FIG. 2, when the test conductive bar T is positioned at the center of the touch sensor 350 or is positioned on the first electrodes of the first group or the first electrodes on the first imaginary circle configured to cover the first electrodes of the first group, a problem occurs in which the sensed signal output from the touch sensor 350 disappears. This problem can occur when the touch sensor 350 is driven in a self-sensing mode, and senses the sensed signal using differential sensing. Figure 3

[0134] Here, the differential sensing is a method of sensing a touch or not using a signal obtained by subtracting the sensed signals output from two first electrodes among the plurality of first electrodes TXO, TXI, TX2, TX3, TX4, TX5, TX6, and TX7. For example, when the touch sensor 350 is driven in the self-sensing mode, the touch driving IC (or the control section) of the touch input device can receive a signal obtained by subtracting the two sensed signals output from the 1-0 electrode TXO and the 1-1 electrode TXI to determine a touch or not.

[0135] As shown in the right side drawing of FIG. 2, when the test conductive bar T is in a state of touching the touch sensor 350 to cover the first electrodes of the first group or the first electrodes on the first imaginary circle, Figure 5 Figure 6 As shown in the right side drawing of FIG. 2, when the test conductive bar T is in a state of touching the touch sensor 350 to cover the first electrodes of the first group or the first electrodes on the first imaginary circle,

[0136] However, Figure 5 Figure 5 Figure 3 ​​​​The central part of the touch sensor 550 shown can still sense whether the test conductive rod T is touched or not by reinforcing the sensing signal output from the 2-0th electrode R0.

[0137] Also, Figure 5 The touch sensor 550 shown can distinguish between a touch and a water droplet in the central part by further configuring the 2-0th electrode RX0 in the central part, and Figure 2 The touch sensor 350 shown cannot distinguish not only a touch in the central part but also a water droplet.

[0138] Also, Figure 5 The touch sensor 550 shown according to another embodiment of the present application can be configured with eight first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, and TX7 and eight second electrodes RX0, RX1, RX2, RX3, RX4, RX5, RX6, and RX7. Thus, the total number of channels is 8+8, and the total number of channels can be configured to be 16.

[0139] Also, since the number of reception channels (RX channels) is eight, which is an even number, the touch sensor 550 has the advantage of being able to perform differential sensing.

[0140] Also, since the area of the top surface of each channel is uniform, the touch sensor 550 has the advantage that, when a plurality of electrodes are driven in a self-sensing mode, the amount of change in self-capacitance (self cap) is uniformly generated.

[0141] Also, since the area of the top surface of each channel is uniform, the touch sensor 550 has the advantage that, when a plurality of electrodes are driven in a mutual-sensing mode, the amount of change in mutual-capacitance (mutual cap, Cm) output from the reception electrode is uniformly generated. For example, the touch sensor 550 can have a Cm value of about 200 pF or less.

[0142] Also, the touch sensor 550 shown has Figure 5 The touch sensor having the existing vertical-intersection pattern structure shown cannot well recognize touch coordinates when a wheel is touched due to a decrease in the SNR of touch sensing, and Figure 5 The touch sensor shown has the advantage of being able to clearly recognize touch coordinates since the SNR of touch sensing can be improved due to the plurality of electrodes arranged along the shape of the edge part.

[0143] Also, Figures 7 to 10 The touch sensor shown is configured in a full node mode in which, except for the 2-0th electrode RX0 located in the central part, one second electrode is provided with first electrodes on both sides as a reference. Thus Figure 5 The touch sensor shown is almost close to the full node mode.

[0144] And, the total number of traces can be configured to be 37 by a predetermined routing. See Figures 7 to 10 The routing and the total number of traces are described.

[0145] In addition, referring to the diagram of the lower right end of Figure 5 In the case of the diameter of the touch sensor 550 being 35 mm, the radius is 17.5 mm, the length from the center to the 2-0th electrode RX0 located in the center is 0.1 mm, the length from the center to the first electrode on the first imaginary circle C1 is 2.5 mm, the length from the center to the 2-0th electrode RX0 on the second imaginary circle C2 is 4.9 mm, the length from the center to the first electrode on the third imaginary circle C3 is 7.5 mm, the length to the second electrode on the fourth imaginary circle C4 is 10.7, the length from the center to the first electrode on the fifth imaginary circle C5 is 12.8 mm, the length from the center to the second electrode on the sixth imaginary circle C6 is 15.5 mm, and the length from the center to the first electrode on the seventh imaginary circle C7 can be 17.5 mm. Among them, the interval between the first electrode and the second electrode can be changed according to the actual routing.

[0146] Figures 7 to 8 For the purpose of illustration Figure 5 is a diagram illustrating the routing of a plurality of electrodes included in the touch sensor according to one embodiment of the present application.

[0147] Figure 7 For the purpose of illustration Figure 8 is a diagram illustrating the routing and trace connection structure of a plurality of first electrodes TX0, TX1, TX2, TX3, TX4, TX5, TX6, and TX7. Figures 7 to 8 is a diagram illustrating the routing and trace connection structure of the 1st-0th electrode TX0, the 1st-1st electrode TX1, the 1st-6th electrode TX6, and the 1st-7th electrode TX7, Figure 3 is a diagram illustrating the routing and trace connection structure of the 1st-2nd electrode TX2, the 1st-3rd electrode TX3, the 1st-4th electrode TX4, and the 1st-5th electrode TX5. Among them, Figure 7 The matters illustrated in Figure 7 are directly applicable to the touch sensor 350 according to one embodiment of the present application illustrated in

[0148] First, referring to Figure 8 the traces of the 1st-0th electrode TX0, the 1st-1st electrode TX1, the 1st-6th electrode TX6, and the 1st-7th electrode TX7 can be arranged on one side (left side) of the touch sensor 550.

[0149] Specifically, the 1-0th electrode TX0 located on the first, third, fifth, and seventh imaginary circles C1, C3, C5, and C7 is electrically connected to the trace (a), and the 1-7th electrode TX7 located on the first, third, fifth, and seventh imaginary circles C1, C3, C5, and C7 is electrically connected to the trace (h). For reference, Figure 8 For convenience of explanation, the trace (a) connected to the 1-0th electrode TX0 located on the first, third, fifth, and seventh imaginary circles C1, C3, C5, and C7 and the trace (h) connected to the 1-7th electrode TX7 located on the first, third, fifth, and seventh imaginary circles C1, C3, C5, and C7 are shown by a thick line.

[0150] The trace (a) passes between the 1-0th electrode TX0 and the 1-7th electrode TX7 on the seventh imaginary circle C7 and is connected to the 1-0th electrode TX0, passes between the 2-4th electrode RX4 and the 2-5th electrode RX5 on the sixth imaginary circle C6, passes between the 1-0th electrode TX0 and the 1-7th electrode TX7 on the fifth imaginary circle C5 and is connected to the 1-0th electrode TX0, passes between the 2-1th electrode RX1 and the 2-2th electrode RX2 on the fourth imaginary circle C4, passes between the 1-0th electrode TX0 and the 1-7th electrode TX7 on the third imaginary circle C3 and is connected to the 1-0th electrode TX0, passes between the two 2-0th electrodes RX0 on the second imaginary circle C2 and is connected to the 1-0th electrode TX0 on the first imaginary circle C1.

[0151] The trace (h) passes between the 1-0th electrode TX0 and the 1-7th electrode TX7 on the seventh imaginary circle C7 and is connected to the 1-7th electrode TX7, passes between the 2-4th electrode RX4 and the 2-5th electrode RX5 on the sixth imaginary circle C6, passes between the 1-0th electrode TX0 and the 1-7th electrode TX7 on the fifth imaginary circle C5 and is connected to the 1-7th electrode TX7, passes between the 2-1th electrode RX1 and the 2-2th electrode RX2 on the fourth imaginary circle C4, passes between the 1-0th electrode TX0 and the 1-7th electrode TX7 on the third imaginary circle C3 and is connected to the 1-7th electrode TX7, passes between the two 2-0th electrodes RX0 on the second imaginary circle C2 and is connected to the 1-7th electrode TX7 on the first imaginary circle C1.

[0152] The 1-1 electrode TX1 located on the first imaginary circle C1, the third imaginary circle C3, the fifth imaginary circle C5, and the seventh imaginary circle C7 is electrically connected with the trace (b). Specifically, the trace (b) passes between the 1-0 electrode TX0 and the 1-1 electrode TX1 on the seventh imaginary circle C7 and is connected with the 1-1 electrode TX1, passes between the 2-4 electrode RX4 and the 2-5 electrode RX5 on the sixth imaginary circle C6, passes between the 1-0 electrode TX0 and the 1-1 electrode TX1 on the fifth imaginary circle C5 and is connected with the 1-1 electrode TX1, passes between the 2-1 electrode RX1 and the 2-2 electrode RX2 on the fourth imaginary circle C4, passes between the 1-0 electrode TX0 and the 1-1 electrode TX1 on the third imaginary circle C3 and is connected with the 1-1 electrode TX1, and passes between the two 2-0 electrodes RX0 on the second imaginary circle C2 and is connected with the 1-1 electrode TX1 on the first imaginary circle C1.

[0153] The 1-6 electrode TX6 located on the first imaginary circle C1, the third imaginary circle C3, the fifth imaginary circle C5, and the seventh imaginary circle C7 is electrically connected with the trace (e). Specifically, the trace (e) passes between the 1-7 electrode TX7 and the 1-6 electrode TX6 on the seventh imaginary circle C7 and is connected with the 1-6 electrode TX6, passes between the 2-4 electrode RX4 and the 2-5 electrode RX5 on the sixth imaginary circle C6, passes between the 1-7 electrode TX7 and the 1-6 electrode TX6 on the fifth imaginary circle C5 and is connected with the 1-6 electrode TX6, passes between the 2-1 electrode RX1 and the 2-2 electrode RX2 on the fourth imaginary circle C4, passes between the 1-7 electrode TX7 and the 1-6 electrode TX6 on the third imaginary circle C3 and is connected with the 1-6 electrode TX6, and passes between the two 2-0 electrodes RX0 on the second imaginary circle C2 and is connected with the 1-6 electrode TX6 on the first imaginary circle C1.

[0154] Referring to Figures 9 to 10 The traces of the 1-2 electrode TX2, the 1-3 electrode TX3, the 1-4 electrode TX4, and the 1-5 electrode TX5 can be arranged on the other side (right side) of the touch sensor 550.

[0155] Specifically, the 1-3 electrode TX3 located on the first imaginary circle C1, the third imaginary circle C3, the fifth imaginary circle C5, and the seventh imaginary circle C7 is electrically connected with the trace (d), and the 1-4 electrode TX4 located on the first imaginary circle C1, the third imaginary circle C3, the fifth imaginary circle C5, and the seventh imaginary circle C7 is electrically connected with the trace (e). For reference, Figure 5The trace (d) is shown by a thick line for convenience of explanation, and connects the 1-3 electrode TX3 located on the first, third, fifth, and seventh imaginary circles C1, C3, C5, and C7, and the 1-4 electrode TX4 located on the first, third, fifth, and seventh imaginary circles C1, C3, C5, and C7.

[0156] The trace (d) passes between the 1-3 electrode TX3 and the 1-4 electrode TX4 on the seventh imaginary circle C7 and connects the 1-3 electrode TX3, passes between the 2-4 electrode RX4 and the 2-5 electrode RX5 on the sixth imaginary circle C6, passes between the 1-3 electrode TX3 and the 1-4 electrode TX4 on the fifth imaginary circle C5 and connects the 1-3 electrode TX3, passes between the 2-1 electrode RX1 and the 2-2 electrode RX2 on the fourth imaginary circle C4, passes between the 1-3 electrode TX3 and the 1-4 electrode TX4 on the third imaginary circle C3 and connects the 1-3 electrode TX3, passes between the two 2-0 electrodes RX0 on the second imaginary circle C2, and connects the 1-3 electrode TX3 on the first imaginary circle C1.

[0157] The trace (e) passes between the 1-3 electrode TX3 and the 1-4 electrode TX4 on the seventh imaginary circle C7 and connects the 1-4 electrode TX4, passes between the 2-4 electrode RX4 and the 2-5 electrode RX5 on the sixth imaginary circle C6, passes between the 1-3 electrode TX3 and the 1-4 electrode TX4 on the fifth imaginary circle C5 and connects the 1-4 electrode TX4, passes between the 2-1 electrode RX1 and the 2-2 electrode RX2 on the fourth imaginary circle C4, passes between the 1-3 electrode TX3 and the 1-4 electrode TX4 on the third imaginary circle C3 and connects the 1-4 electrode TX4, passes between the two 2-0 electrodes RX0 on the second imaginary circle C2, and connects the 1-4 electrode TX4 on the first imaginary circle C1.

[0158] The first and second electrodes TX2 located on the first imaginary circle C1, the third imaginary circle C3, the fifth imaginary circle C5, and the seventh imaginary circle C7 are electrically connected to the trace (c). Specifically, the trace (c) passes between the first and second electrodes TX2 and the first and third electrodes TX3 on the seventh imaginary circle C7 and is connected to the first and second electrodes TX2; passes between the second and fourth electrodes RX4 and the second and fifth electrodes RX5 on the sixth imaginary circle C6; passes between the first and second electrodes TX2 and the first and third electrodes TX3 on the fifth imaginary circle C5 and is connected to the first and second electrodes TX2; passes between the second and third electrodes RX0 on the fourth imaginary circle C4; passes between the first and second electrodes TX2 and the first and third electrodes TX3 on the third imaginary circle C3 and is connected to the first and second electrodes TX2; and passes between the two second and third electrodes RX0 on the second imaginary circle C2 and is connected to the first and second electrodes TX2 on the first imaginary circle C1.

[0159] The first-to-fifth electrodes TX5 located on the first imaginary circle C1, the third imaginary circle C3, the fifth imaginary circle C5, and the seventh imaginary circle C7 are electrically connected to the trace (f). Specifically, the trace (f) passes between and is connected to the first-to-fifth electrode TX5 on the seventh imaginary circle C7, passes between the second-to-fourth electrode RX4 and the second-to-fiveth electrode RX5 on the sixth imaginary circle C6, passes between and is connected to the first-to-fiveth electrode TX5 on the fifth imaginary circle C5, passes between the second-to-one electrode RX1 and the second-to-two electrode RX2 on the fourth imaginary circle C4, passes between and is connected to the first-to-fiveth electrode TX5 on the third imaginary circle C3, passes between the two second-to-zero electrodes RX0 on the second imaginary circle C2, and is connected to the first-to-fiveth electrode TX5 on the first imaginary circle C1.

[0160] Figure 9 It is used for explanation Figure 10 The diagram shows the routing and trace connection structure of the multiple second electrodes RX0, RX1, RX2, RX3, RX4, RX5, RX6, and RX7. Figures 9 to 10 This diagram illustrates the routing and trace connection structure of multiple second electrodes RX0 to RX7 located on the first imaginary circle C1 to the seventh imaginary circle C7. Figure 3 This is a schematic diagram illustrating the routing structure of electrodes RX1 (2-1), RX2 (2-2), and RX3 (2-3) on the fourth imaginary circle C4, and the routing structure of electrodes RX4 (2-4), RX5 (2-5), RX6 (2-6), and RX7 (2-7) on the sixth imaginary circle C6. Figure 9 The matters shown can be directly applied to Figure 7The touch sensor 350 according to one embodiment of the present application is shown.

[0161] Referring to Figure 3 , the trace is connected to the two 2-0 electrodes RX0 on the second imaginary circle C2 and to the central 2-0 electrode RX0. The trace is connected to the two 2-0 electrodes RX0 on the second imaginary circle C2 and to the central 2-0 electrode RX0 on the first imaginary circle (not shown) between the 1-0 electrode TX0 and the 1-7 electrode TX7. Figure 10 The trace (a) and the trace (h) are configured together, and are connected to the two 2-0 electrodes RX0 on the second imaginary circle C2 and to the central 2-0 electrode RX0 on the first imaginary circle (not shown) between the 1-0 electrode TX0 and the 1-7 electrode TX7. Figure 9 In the case of the touch sensor 350 shown, the trace is connected to the two 2-0 electrodes RX0 on the second imaginary circle C2 and is terminated.

[0162] Referring to Figure 10 , the trace is connected to any one of the two 2-1 electrodes RX1 on the fourth imaginary circle C4 which are connected in series with each other.

[0163] The trace is connected to any one of the four 2-2 electrodes RX2 on the fourth imaginary circle C4 which are connected in series with each other.

[0164] The trace is connected to any one of the two 2-3 electrodes RX3 on the fourth imaginary circle C4 which are connected in series with each other.

[0165] Referring to Figure 9 , the three traces are configured together up to the fourth imaginary circle C4. Specifically, the three traces are connected to the any one of the 2-1 electrodes RX1, the any one of the 2-2 electrodes RX2, and the any one of the 2-3 electrodes RX3 on the fourth imaginary circle C4, respectively, through the 1-6 electrode TX6 and the 1-7 electrode TX7 on the seventh imaginary circle C7, through the 2-4 electrode RX4 and the 2-5 electrode RX5 on the sixth imaginary circle C6, and through the 1-6 electrode TX6 and the 1-7 electrode TX7 on the fifth imaginary circle C5.

[0166] Referring again to Figure 9 , the trace is connected to any one of the two 2-4 electrodes RX4 on the sixth imaginary circle C6 which are connected in series with each other.

[0167] trace any one of the four second to fifth electrodes RX5 connected in series with each other on the sixth imaginary circle C6.

[0168] trace any one of the four second to sixth electrodes RX6 connected in series with each other on the sixth imaginary circle C6.

[0169] and trace connected in parallel with the two second to seventh electrodes RX7 on the sixth imaginary circle C6.

[0170] Referring to Figure 9 , three traces are configured together up to the sixth imaginary circle C6. Specifically, three traces pass between the first to fourth electrode TX4 and the first to fifth electrode TX5 on the seventh imaginary circle C7 and are connected to the any one of the second to fourth electrode RX4, the any one of the second to fifth electrode RX5, and the any one of the second to sixth electrode RX6 on the sixth imaginary circle C6, respectively. And trace pass between the first to fifth electrode TX5 and the first to sixth electrode TX6 on the seventh imaginary circle C7 and are connected in parallel with the two second to seventh electrodes RX7 on the sixth imaginary circle C6.

[0171] In addition, although Figure 11 not shown, the semicircular portion omitted in Figure 11 may also be configured with three traces and three traces

[0172] Figure 7 is a diagram for explaining the number of traces of a touch sensor according to an embodiment of the present application. In this diagram, Figure 10 the left trace of Figure 8 includes traces of Figure 10 and Figure 11 and the right trace includes traces of Figures 7 to 10 and

[0173] Referring to Figure 3 , according to a routing method as shown in Figure 5 , one side of the touch sensor 350, 550 can be configured with 20 traces and the other side of the touch sensor 350, 550 can be configured with 17 traces.

[0174] Specifically, the 20 traces configured on one side of the touch sensors 350 and 550 can be composed of two traces on each side for ESD, four traces for TX0, TX1, TX6, and TX7, eight traces for RX0 to RX7, and six guide traces (GUARD) for electrical contact between TX and RX.

[0175] The 17 traces configured on the other side of the touch sensors 350 and 550 can be composed of two traces on each side for ESD, four traces for TX2, TX3, TX4, and TX5, seven traces for RX1 to RX7, and four guide traces (GUARD) for preventing electrical contact between TX and RX.

[0176] As above, Figure 12 or Figure 9 The touch sensors 350 and 550 shown can be composed of a total of 37 traces, of which 23 are active traces. The active traces refer to the number of traces connected to TX and RX, excluding the 10 guiding traces and 4 ESD traces.

[0177] Figure 13 To show Figure 12 Another example of the diagram, Figure 12 (a) and (b) are used for illustration Figure 9 The diagram shows the routing and number of traces for the touch sensor.

[0178] Figure 12 The trace shown is from another example of a touch sensor. The location is different Figure 13 traces The location. Specifically, the trace. With trace Configure them together.

[0179] See Figure 12 and Figure 12 (a), trace Connect to either of the two second-fourth electrodes RX4 that are connected in series on the sixth imaginary circle C6.

[0180] trace Connect to any one of the four second-to-fifth electrodes RX5 that are connected in series on the sixth imaginary circle C6.

[0181] trace Connect to any one of the four second-to-sixth electrodes RX6 that are connected in series on the sixth imaginary circle C6.

[0182] Furthermore, the trace It is connected in parallel with the two 2nd-7th electrodes RX7 on the sixth imaginary circle C6.

[0183] See Figure 12 4 traces Up to the sixth imaginary circle C6, all are configured together. Specifically, there are four traces. The first-5 electrodes TX5 and the first-6 electrodes TX6 on the seventh imaginary circle C7 are connected to the second-4 electrodes RX4, the second-5 electrodes RX5, the second-6 electrodes RX6, and the two second-7 electrodes RX7 on the sixth imaginary circle C6.

[0184] In addition, although Figure 13 No illustration, but Figure 12 The omitted semicircle in the middle can also be configured with three traces. and 4 traces

[0185] See Figure 12 (b) Figure 12 The touch sensor shown can be configured with 21 traces on one side and 18 traces on the other side.

[0186] Specifically, the configuration is in Figure 12 The 21 traces on one side of the touch sensor shown can be composed of two traces for ESD on both sides, four traces for TX0, TX1, TX6, and TX7, eight traces for RX0 to RX7, and seven guide traces (GUARD) to prevent electrical contact between TX and RX.

[0187] Configured in Figure 13 The 18 traces on the other side of the touch sensor shown can be composed of two traces on each side for ESD, four traces for TX2, TX3, TX4, and TX5, seven traces for RX1 to RX7, and five guide traces (GUARD) to prevent electrical contact between TX and RX.

[0188] As above, Figure 3 The touch sensor shown can consist of a total of 39 traces, of which 23 are active traces. The active traces refer to the number of traces connected to the TX and RX axes, excluding the 12 guiding traces and 4 ESD traces.

[0189] Figure 13 yes Figure 3 The touch sensor 350 shown is a modified example.

[0190] Figure 13 The touch sensor 350' shown differs from the touch sensor 350 shown in Figure 3 that the plurality of first electrodes are RX0, RX1, RX2, RX3, RX4, RX5, RX6, RX7 and the plurality of second electrodes are composed of TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7.

[0191] Figure 14 The touch sensor 350' shown also has the same technical effects as the touch sensor 350 shown in Figure 5 and the number of routes or traces can also be configured identically.

[0192] Figure 14 A modification of the touch sensor 550 shown in Figure 5

[0193] Figure 14 The touch sensor 550' shown differs from the touch sensor 550 shown in Figure 5 that the plurality of first electrodes are RX0, RX1, RX2, RX3, RX4, RX5, RX6, RX7 and the plurality of second electrodes are composed of TX0, TX1, TX2, TX3, TX4, TX5, TX6, TX7.

[0194] Figure 2 The touch sensor 550' shown also has the same technical effects as the touch sensor 550 shown in Figure 3 and the number of routes or traces can also be configured identically.

[0195] Table 1 below is a table comparing Figure 5 the existing touch sensor shown in Figure 16 the touch sensor according to one embodiment of the present application shown in Figure 17a the touch sensor of another embodiment of the present application shown in

[0196]

Table 1

[0197]

[0198] Figure 17b , Figure 5 and Figure 16 are schematic diagrams for explaining Figure 17a still another route and trace configuration structure of the touch sensor 550 according to another embodiment of the present application shown in

[0199] Referring to Figure 17b , Figure 5 and Figure 5 ,​Figure 3 The number of traces in the 550 touch sensor can be 43. Figure 5 The number of traces of the touch sensor 550 compared to Figure 12 , Figure 4 and Figure 18a The number of traces in the touch sensor is slightly increased, but the overall number of traces between the electrodes (or patterns) and the traces passing through the electrodes (or patterns) can be reduced. From the perspective of touch sensor performance, this has the advantage of forming a larger capacitance variation (delta Cm). Furthermore, the trace bundles A and B can be reduced to two, thus providing the advantage of easy trace management.

[0200] Import Figure 5 Regarding the imaginary circle, the second-1 electrode RX1, the second-2 electrode RX2, and the second-3 electrode RX3 arranged on the fourth imaginary circle C4 are divided into two groups (the first group and the second group). Each group consists of RX2-RX3-RX2-RX1-RX2-RX3-RX2-RX1 arranged continuously in a clockwise direction on the fourth imaginary circle C4. The second-1 electrode RX1 of each group is connected in series, the second-2 electrode RX2 is also connected in series, and the second-3 electrode RX3 is also connected in series.

[0201] The traces connected to any of the second-1 electrodes RX1 in the first group, the traces connected to a second-2 electrode RX2 and the traces connected to a second-3 electrode RX3 pass between the first-6 electrodes TX6 and the first-7 electrodes TX7 on the fifth imaginary circle C5, between the second-5 electrodes RX5 and the second-6 electrodes RX6 on the sixth imaginary circle C6, and between the first-6 electrodes TX6 and the first-7 electrodes TX7 on the seventh imaginary circle C7, and are included in the trace bundle A.

[0202] The traces connected to any of the second-1 electrodes RX1 in the second group, the traces connected to a second-2 electrode RX2 and the traces connected to a second-3 electrode RX3 pass between the first-3 electrodes TX3 and the first-2 electrodes TX2 on the fifth imaginary circle C5, between the second-5 electrodes RX5 and the second-6 electrodes RX6 on the sixth imaginary circle C6, and between the first-3 electrodes TX3 and the first-2 electrodes TX2 on the seventh imaginary circle C7, and are included in the trace bundle B.

[0203] The 2-4th electrode RX4, the 2-5th electrode RX5, the 2-6th electrode RX6 and the 2-7th electrode RX7 arranged on the sixth imaginary circle C6 are divided into two groups (a first group and a second group). Each group includes RX4-RX5-RX6-RX7-RX6-RX5-RX4-RX5-RX6-RX7-RX6-RX5 arranged continuously in a clockwise direction on the sixth imaginary circle C6. The 2-4th electrode RX4 in each group is connected in series, the remaining electrodes of the 2-5th electrode RX5 except for one electrode at one end are also connected in series, the 2-6th electrode RX6 is also connected in series, and the 2-7th electrode RX7 is also connected in series.

[0204] The trace connected to any 2-4th electrode RX4 in the first group, the trace connected to one 2-5th electrode RX5, the trace connected to one 2-6th electrode RX6 and the trace connected to one 2-7th electrode RX7 pass through between the 1-5th electrode TX5 and the 1-6th electrode TX6 on the seventh imaginary circle C7 and are included in the trace bundle B.

[0205] The trace connected to any 2-4th electrode RX4 in the second group, the trace connected to one 2-5th electrode RX5, the trace connected to one 2-6th electrode RX6 and the trace connected to one 2-7th electrode RX7 pass through between the 1-2nd electrode TX2 and the 1-1st electrode TX1 on the seventh imaginary circle C7 and are included in the trace bundle A.

[0206] In addition, one electrode of the 2-5th electrode RX5 in the first group passes through between the 1-6th electrode TX6 and the 1-7th electrode TX7 on the seventh imaginary circle C7 and is included in the trace bundle A, and one electrode of the 2-5th electrode RX5 in the second group passes through between the 1-2nd electrode TX2 and the 1-3rd electrode TX3 on the seventh imaginary circle C7 and is included in the trace bundle B.

[0207] The 2-0th electrode RX0 on the concentric circle and the two 2-0th electrodes RX0 on the second imaginary circle C2 are connected by the trace between the 1-1st electrode TX1 and the 1-2nd electrode TX2 and the trace between the 1-5th electrode TX5 and the 1-6th electrode TX6 on the first imaginary circle C1.

[0208] The trace of one of the two 2-0 electrodes RX0 connected to the second imaginary circle C2 passes between the 1-6 electrodes TX6 and the 1-7 electrodes TX7 on the third imaginary circle C3, the fifth imaginary circle C5, and the seventh imaginary circle C7, and is contained in the trace bundle A. Specifically, the trace surrounds the middle 1-1 electrode RX1 in the first group on the fourth imaginary circle C4, passes between the 2-1 electrode RX1 and the 2-2 electrode RX2 located at one end, and passes between the 2-5 electrode RX5 and the 2-6 electrode RX6 in the first group on the sixth imaginary circle C6.

[0209] Figure 5 This is a schematic diagram illustrating the electrode pattern structure of a touch sensor 1850 according to another embodiment of the present invention.

[0210] Figure 18a The touch sensor 1850 shown according to another embodiment of the present invention is compared to Figure 5 The touch sensor 550 shown has fewer channels for its second electrodes RX0, RX1, RX2, RX3, RX4, and RX5. Specifically, Figure 18a The touch sensor 550 shown has eight channels for its second electrodes RX0, RX1, RX2, RX3, RX4, RX5, RX6, and RX7. Figure 5 The touch sensor 1850 shown has six channels for its second electrodes RX0, RX1, RX2, RX3, RX4, and RX5.

[0211] Figure 8 The touch sensor 550 shown is compared to Figure 18a The 1850 touch sensor has more channels in its second electrode, resulting in a smaller area per channel. Therefore, it is expected that... Figure 5 The mutual capacitance change Cm between any adjacent first electrode and any adjacent second electrode of the touch sensor 550 is less than Figure 18a The mutual capacitance value Cm and the mutual capacitance change value ΔCm between any two adjacent first and second electrodes of the touch sensor 1850 decrease, resulting in a reduced signal-to-noise ratio (SNR). Conversely, Figure 5 The touch sensor 1850 reduces the number of channels in the second electrodes RX0, RX1, RX2, RX3, RX4, and RX5, thus increasing the area per channel to be larger. Figure 17a The touch sensor 550 can therefore increase the mutual capacitance value Cm and the mutual capacitance change value ΔCm between any adjacent first electrode and any second electrode. Furthermore, it is expected to increase the signal-to-noise ratio (SNR).

[0212] and, Figure 17b The number of second electrodes of the touch sensor 1850 compared toFigure 5 The number of second electrodes of the touch sensor 550 is reduced, and thus the number of traces can also be reduced. For example, in the case where the routing and trace connection are configured in the same manner as in Figure 18a and Figure 18b , Figure 18c The number of traces of the touch sensor 550 is composed of 43, while Figure 18a The touch sensor 1850 is 39, and the traces can be further reduced. Details will be described later with reference to Figure 5 and Figure 18a .

[0213] Figure 4 The touch sensor 1850 shown in FIG. 18A is compared with the touch sensor 550 shown in FIG. 5A, and the upper area of the 2-1 electrode RX1 and the upper area of the 2-2 electrode RX2 can be substantially the same. Also, with respect to the touch sensor 1850 shown in FIG. 18A, the imaginary circle of Figure 4 is introduced, and the upper areas of the second electrodes RX1 and RX2 located on the fourth imaginary circle C4 can be substantially the same, and the second electrodes RX1 and RX2 located on the fourth imaginary circle C4 can be alternately arranged. Figure 18a Figure 5 The imaginary circle of is introduced, and a portion of the 2-1 electrode RX1 and a portion of the 2-2 electrode RX2 can be disposed between any one of the first electrodes TX0 to TX7 located on the third imaginary circle C3 and any one of the first electrodes TX0 to TX7 located on the fifth imaginary circle C5.

[0214] Figure 18a Also, the touch sensor 1850 shown in FIG. 18A is compared with the touch sensor 550 shown in FIG. 5A, and the upper area of the 2-3 electrode RX3 and the cross-sectional area of the 2-5 electrode RX5 can be substantially the same. The cross-sectional area of the 2-4 electrode RX4 can be half of the upper area of the 2-3 electrode RX3 and the cross-sectional area of the 2-5 electrode RX5. Also, with respect to the touch sensor 1850 shown in FIG. 18A, the imaginary circle of

[0215] is introduced, and the second electrodes RX3, RX4, and RX5 located on the sixth imaginary circle C6 can be arranged in the order of RX3-RX4-RX5-RX4 in repetition. Figure 4 Figure 4 Figure 18b The imaginary circle of Figure 18c is introduced, and the second electrodes RX3, RX4, and RX5 located on the sixth imaginary circle C6 can be arranged in the order of RX3-RX4-RX5-RX4 in repetition.

[0216] The imaginary circle of Figure 18a ​​​The first electrode TX0 to TX7 on the fifth imaginary circle C5 and the first electrode TX0 to TX7 on the seventh imaginary circle C7 are configured with a part of the 2-3 electrode RX3, the entire 2-4 electrode RX4, and a part of the 2-5 electrode RX5.

[0217] Figure 4 and Figure 18c are for illustrating Figure 18a A schematic diagram of the routing and trace connection structure of the touch sensor 1850 shown in FIG. 18.

[0218] The trace connected to any one of the 2-1 electrodes RX1 in the first group and the trace connected to one of the 2-2 electrodes RX2 pass through between the 1-6 electrode TX6 and the 1-7 electrode TX7 on the fifth imaginary circle C5, between the 2-5 electrode RX5 and the 2-4 electrode RX4 on the sixth imaginary circle C6, and between the 1-6 electrode TX6 and the 1-7 electrode TX7 on the seventh imaginary circle C7, and are included in the trace bundle A. Figure 19 The trace connected to any one of the 2-1 electrodes RX1 in the first group and the trace connected to one of the 2-2 electrodes RX2 pass through between the 1-6 electrode TX6 and the 1-7 electrode TX7 on the fifth imaginary circle C5, between the 2-5 electrode RX5 and the 2-4 electrode RX4 on the sixth imaginary circle C6, and between the 1-6 electrode TX6 and the 1-7 electrode TX7 on the seventh imaginary circle C7, and are included in the trace bundle A.

[0219] The trace connected to any one of the 2-1 electrodes RX1 in the second group and the trace connected to one of the 2-2 electrodes RX2 pass through between the 1-3 electrode TX3 and the 1-2 electrode TX2 on the fifth imaginary circle C5, between the 2-5 electrode RX5 and the 2-4 electrode RX4 on the sixth imaginary circle C6, and between the 1-3 electrode TX3 and the 1-2 electrode TX2 on the seventh imaginary circle C7, and are included in the trace bundle B.

[0220] The 2-3 electrode RX3, the 2-4 electrode RX4, and the 2-5 electrode RX5 on the sixth imaginary circle C6 are divided into two groups (a first group and a second group). Each group includes RX3-RX4-RX5-RX4-RX3-RX4-RX5-RX4 arranged continuously in the clockwise direction on the sixth imaginary circle C6. The 2-3 electrodes RX3 in each group are connected in series, and the remaining electrodes of the 2-4 electrodes RX4 except for one electrode at one end are also connected in series, and the 2-5 electrodes RX5 are also connected in series.

[0221]

[0222] ​The trace connected to any one of the second 3 electrodes RX3 in the first group, the trace connected to one of the second 4 electrodes RX4, and the trace connected to one of the second 5 electrodes RX5 pass through the first 5 electrode TX5 and the first 6 electrode TX6 on the seventh imaginary circle C7 and are included in the trace bundle B.

[0223] The trace connected to any one of the second 3 electrodes RX3 in the second group, the trace connected to one of the second 4 electrodes RX4, and the trace connected to one of the second 5 electrodes RX5 pass through the first 2 electrode TX2 and the first 1 electrode TX1 on the seventh imaginary circle C7 and are included in the trace bundle A.

[0224] In addition, one of the second 4 electrodes RX4 at one end in the first group passes through the first 6 electrode TX6 and the first 7 electrode TX7 on the seventh imaginary circle C7 and is included in the trace bundle A, and one of the second 4 electrodes RX4 at one end in the second group passes through the first 2 electrode TX2 and the first 3 electrode TX3 on the seventh imaginary circle C7 and is included in the trace bundle B.

[0225] The two second 0 electrodes RX0 on the concentric circle and the two second 0 electrodes RX0 on the second imaginary circle C2 are connected by the trace between the first 1 electrode TX1 and the first 2 electrode TX2 and the trace between the first 5 electrode TX5 and the first 6 electrode TX6 on the first imaginary circle C1.

[0226] The trace connected to one of the two second 0 electrodes RX0 on the second imaginary circle C2 passes through the first 6 electrode TX6 and the first 7 electrode TX7 on the third imaginary circle C3, the fifth imaginary circle C5, and the seventh imaginary circle C7 and is included in the trace bundle A. Here, the trace surrounds the first 1 electrode RX1 in the middle in the first group on the fourth imaginary circle C4, passes through between the second 1 electrode RX1 and the second 2 electrode RX2 at one end, and passes through between the second 5 electrode RX5 and the second 4 electrode RX4 in the first group on the sixth imaginary circle C6.

[0227] As shown in FIG. 19B, the number of traces of the touch sensor 1950 is a total of 39. Figure 19 Figure 18a

[0228] Figure 18a FIG. 19B is a diagram for explaining an electrode pattern structure of a touch sensor 1950 according to still another embodiment of the present application.

[0229] Figure 4 The touch sensor 1950 shown in FIG. 19B has a structure in which the number of traces is a total of 39, compared to the touch sensor 1850 shown in FIG. 18B. Figure 19 ​​The touch sensor 1850 shown has the same arrangement and diameter for the first electrodes TX0, ..., TX7 and the second electrodes RX0, ..., RX5, but the widths of some of the first electrodes TX0, ..., TX7 and the second electrodes RX0, ..., RX5 are different. This is to improve... Figure 18a The accuracy of the coordinates of the outer contour of the touch sensor 1850.

[0230] Import Figure 19 From the perspective of the imaginary circle, Figure 18a The touch sensor 1950 shown is compared to Figure 19 The touch sensor 1850 shown has a wider first electrode TX0, ..., TX7 located on the third imaginary circle C3 and the fifth imaginary circle C5, and a narrower second electrode RX1, ..., RX5 located on the fourth imaginary circle C4 and the sixth imaginary circle C6, and a narrower first electrode TX0, ..., TX7 located on the seventh imaginary circle.

[0231] Specifically, Figure 18b The touch sensor 1950 shown is compared to Figure 18c The touch sensor 1850 shown has the first electrodes TX0, ..., TX7 located on the third imaginary circle C3 and the fifth imaginary circle C5 having a width that is 0.2mm longer. Conversely, the second electrodes RX1, ..., RX5 located on the fourth imaginary circle C4 and the sixth imaginary circle C6 have a width that is 0.1mm narrower, and the first electrodes TX0, ..., TX7 located on the seventh imaginary circle have a width that is 0.5mm narrower.

[0232] Figure 5 The routing and trace connection structure of the touch sensor 1950 shown can be as follows: Figure 18a and Figure 19 constitute.

[0233] After comparison Figure 5 The touch sensor 550 shown Figure 18a The touch sensor 1850 shown and Figure 18a The touch sensor 1950 shown is... Figure 5 Based on the 550 touch sensor, Figure 19 The touch sensor 1850 can increase the surface area of ​​the second electrode RX0, ..., RX5 by reducing the number of RX channels. Therefore Figure 18a The touch sensor 1850 shown is compared to Figure 18a The touch sensor 550 can further increase the mutual capacitance value Cm and the mutual capacitance change ΔCm. Additionally, Figure 2 Touch sensor 1950 and Figure 5 The electrodes of the touch sensor 1850 are arranged the same, thus enabling the acquisition of the same... Figure 18aIt has similar characteristics to the 1850 touch sensor.

[0234] Table 2 below is a comparison Figure 19 The touch sensor 150 shown Figure 5 The touch sensor 550 shown Figure 11 The touch sensor 1850 shown and Figure 13 The table below shows the characteristics of the touch sensor 1950. (Table 2 is mentioned below.) Figure 5 Touch sensor_1 Figure 16 or Figure 20 The routing trace connection, Figure 21 Touch sensor_2 Figure 5 And the routing and trace connections in Figure 17.

[0235] Table 2

[0236]

[0237]

[0238] Figure 18a The simulation environments used to obtain the simulation results described in Table 2 are shown, reflecting the YOCT A stack-up.

[0239] Figure 19 In order to obtain the simulation results recorded in Table 2, without adjusting... Figure 21 The touch sensor shown is _2 550. Figure 22 The touch sensor 1850 shown and Figure 21 The diagram shows a simulated view of the reference mutual capacitance value (Cm) when the touch sensor 1950 is in an untouched state. The solid line indicates the point with the best mutual capacitance change, and the dashed line indicates the point with the worst mutual capacitance change.

[0240] exist Figure 22 In the simulation, the candidate groups of the Max diff node and the Min diff node can be selected for simulation, as shown in Table 2. The maximum ΔCm (max delta Cm) and the minimum ΔCm (min delta Cm) can be compared with the simulated values ​​of the self-capacitance (Cs) of each sensor.

[0241] Figure 5 (a) through (c) show Figure 22 The actual simulated output data under the given conditions. Specifically, Figure 18a (a) is Figure 22The analog output data of the touch sensor _2 550 shown is shown. Figure 19 (b) is Figure 22 The analog output data of the touch sensor 1850 shown is as follows: Figure 22 (c) is Figure 22 The analog output data of the touch sensor 1950 is shown.

[0242] See Figure 22 Table (a) confirms that the average Cm is approximately 211 (fF). Also see... Figure 22 Table (b) confirms that the average Cm is approximately 285 (fF), which is higher than... Figure 23 The average Cm of (a) increased by approximately 35%, see [reference needed]. Figure 5 The table in (c) confirms that the average Cm is approximately 295 (fF), which is higher than... Figure 18a The average Cm of (a) increased by approximately 39.8%.

[0243] Figure 19 (a) to (c) are comparisons in Figure 23 The touch sensor shown is _2 550. Figure 5 The touch sensor 1850 shown and Figure 23 The graph shows the locations of the maximum (Max) and minimum (Min) mutual capacitance changes ΔCm in the touch sensor 1950, illustrating the changes in Cm at these locations. Specifically, Figure 18a (a) is Figure 23 The analog output data of the touch sensor _2 550 shown is shown. Figure 19 (b) is Figure 23 The analog output data of the touch sensor 1850 shown is as follows: Figure 23 (c) is Figure 18a The analog output data of the touch sensor 1950 is shown.

[0244] Depend on Figure 5 (a) confirmed that the maximum mutual capacitance change (Max delta Cm) was 66.1 (fF), the maximum ΔCm (Max Delta Cm) / C was 31.3%, the minimum mutual capacitance change (Min delta Cm) was 38.5 (fF), and the minimum ΔCm (Min Delta Cm) / C was 18.2%.

[0245] Depend on Figure 23(b) confirms that the maximum mutual capacitance change (Max delta Cm) is 101.3 (fF), the maximum ΔCm / C ratio is 35.5%, the minimum mutual capacitance change (Min delta Cm) is 49.2 (fF), and the minimum ΔCm / C ratio is 17.3%. Based on these results, it can be confirmed that... Figure 19 The touch sensor 1850 is compared to Figure 5 The touch sensor _2 550's maximum delta Cm increases by approximately 53%, and its minimum delta Cm increases by approximately 27%.

[0246] Depend on Figure 24 (c) shows that the maximum mutual capacitance change (Max delta Cm) is 107.3 (fF), the maximum ΔCm / C ratio is 36.4%, the minimum mutual capacitance change (Min delta Cm) is 48.5 (fF), and the minimum ΔCm / C ratio is 16.4%. Based on these results, it can be confirmed that... Figure 5 The touch sensor 1950 is compared to Figure 18a The touch sensor _2 550's maximum delta Cm increases by approximately 63%, and its minimum delta Cm increases by approximately 25%.

[0247] Figure 19 (a) through (c) are simulations Figure 24 The touch sensor shown is _2 550. Figure 5 The touch sensor 1850 shown and Figure 24 The output data of the self-capacitance (Cs) of each of the touch sensors 1950 are shown. Specifically, Figure 18a (a) is Figure 24 The analog output data of the touch sensor _2 550 shown is shown. Figure 19 (b) is Figure 24 The analog output data of the touch sensor 1850 shown is as follows: Figure 25 (c) is Figure 5 The analog output data of the touch sensor 1950 is shown.

[0248] See Figure 18a From (a) to (c), it can be confirmed that uniform Cs values ​​are output from the first electrode TX0, ..., TX7 and the second electrode RX0, ..., RX7 or RX0, ..., RX5.

[0249] Figure 19are results of Sim. 1 / Sim. 2 / Sim. 3 shown in Table 2. Figure 25 the touch sensor 2 550 shown in Figure 26 the touch sensor 1850 shown in Figure 5 the touch sensor 1950 shown in the conductive bar.

[0250] Referring to Figure 18a , the left side shows a straight line (Streight line) touch, the middle shows a theta line (thetaline) touch, and the right side shows a Wheel touch.

[0251] The result values of Sim. 1 / Sim. 2 / Sim. 3 shown in Table 2 are compared by calculating the max / rms values of the accuracy at each simulation point.

[0252] Figure 19 are graphs of the maximum error (Max error) and the RMS error (RMS error) in the case of a straight line touch of the left side graph of Figure 25 the touch sensor 2 550 shown in Figure 27 the touch sensor 1850 shown in Figure 26 the touch sensor 1950 shown in Figure 5 Figure 18a are graphs of the maximum error (Max error) and the RMS error (RMS error) of each position (1, 2, 3, 4). Figure 19 (a) indicates the touch sensor 2 550 shown in Figure 26 (b) indicates the touch sensor 1850 shown in Figure 27 (c) indicates the touch sensor 1950 shown in Figure 19

[0253] As shown in Figure 5 and Figure 18a , the width of the electrode of the touch sensor 1950 shown in Figure 28 may be adjusted so that the maximum error (Max error) and the RMS error (RMS error) are further reduced compared to the touch sensors (550, 1850) of Figure 5 and Figure 18a .

[0254] Figure 19 are graphs of the maximum error (Max error) and the RMS error (RMS error) in the case of a straight line touch of the left side graph of Figure 25 the touch sensor 2 550 shown in​​Figure 29 The touch sensor 1850 shown and Figure 28 The touch sensor 1950 shown performs respectively ​ The middle graph shows the maximum error (Maxerror) and RMS error under the condition of the θ line touching the target line. ​ It is a graph showing the maximum error and RMS error for each angle (1, 2, 3). ​ (a) represents Figure 5 The touch sensor shown is _2 550, (b) indicates Figure 18a The touch sensor 1850 shown, (c) indicates Figure 19 The touch sensor shown is 1950.

[0255] like Figure 28 and Figure 29 As shown, it can be adjusted Figure 19 The width of the electrodes of the touch sensor 1950 shown makes the maximum error and RMS error lower than... Figure 5 Touch sensor_2 550 and Figure 18a The touch sensor 1850 is further reduced in size.

[0256] Figure 30 It is a simulation pair Figure 5 The touch sensor shown is _2 550. Figure 18a The touch sensor 1850 shown and Figure 19 The touch sensor 1950 shown performs respectively Figure 25 The diagram on the right illustrates the maximum error (Max error) and RMS error (RMS error) under the condition of wheel touch. Figure 31 It is a graph showing the maximum error and RMS error for each wheel position (1, 2). Figure 30 In the middle, (a) represents Figure 5 The touch sensor shown is _2 550, (b) indicates Figure 18a The touch sensor 1850 shown, (c) indicates Figure 19 The touch sensor shown is 1950.

[0257] like Figure 30 and Figure 31 As shown, it can be adjusted Figure 19 The width of the electrodes of the touch sensor 1950 shown makes the maximum error and RMS error lower than... Figure 5 Touch sensor_2 550 and Figure 18aThe touch sensor 1850 is further reduced in size.

[0258] Figure 32 This is a schematic diagram illustrating the electrode pattern structure of a touch sensor 3250 according to another embodiment of the present invention.

[0259] See Figure 32 According to another embodiment of the present invention, the touch sensor 3250 is compared to Figure 3 The touch sensor 350 shown differs in the second electrodes RX1, RX2, RX3, RX4, RX5, RX6, and RX7, excluding the second electrode RX0.

[0260] Specifically, import Figure 7 Taking the imaginary circle shown as an example, Figure 32 The touch sensor 3250 includes a second-first electrode RX1, a second-second electrode RX2, and a second-third electrode RX3 disposed on a fourth imaginary circle C4, arranged in a repeating RX1-RX2-RX3 sequence. Furthermore, a second-first electrode RX1, a second-second electrode RX2, and a second-third electrode RX3 are disposed between any one of the first electrodes TX0 to TX7 on the third virtual line C3 and any one of the first electrodes TX0 to TX7 on the fifth virtual line C5. The second-first electrode RX1, the second-second electrode RX2, and the second-third electrode RX3 may have substantially the same surface area.

[0261] Figure 32 The touch sensor 3250 includes electrodes RX4 (2nd-4th), RX5 (2nd-5th), RX6 (2nd-6th), and RX7 (2nd-7th) disposed on a sixth imaginary circle C6, arranged in a repeating sequence RX4-RX5-RX6-RX7. Furthermore, one electrode RX4, one electrode RX5, one electrode RX6, and one electrode RX7 are disposed between any one of the first electrodes TX0 to TX7 on the fifth virtual line C5 and any one of the first electrodes TX0 to TX7 on the seventh virtual line C7. Each electrode RX4, electrode RX5, electrode RX6, and electrode RX7 may have substantially the same surface area.

[0262] Figure 33 yes Figure 32 The diagram shows the routing and trace connection structure of the touch sensor 3250.

[0263] Import Figure 4 For the sake of the imaginary circle, see Figure 33The 2-1 electrodes RX1 arranged on the fourth imaginary circle C4 are connected in parallel to each other by the traces, and the 2-3 electrodes RX3 are also connected in parallel to each other by the traces. In addition, the 2-2 electrodes RX2 are connected in series by the traces.

[0264] The 2-1 electrodes RX1 are connected in parallel by the traces connected to one side of each of the 2-1 electrodes RX1, and the 2-3 electrodes RX3 are connected in parallel by the traces connected to the other side of each of the 2-3 electrodes RX3. In addition, the 2-2 electrodes RX2 adjacent to each other are connected in series, and the traces connecting two 2-2 electrodes RX2 adjacent to each other pass between the 2-3 electrode RX3 and the 2-1 electrode RX1 arranged between the two 2-2 electrodes RX2 adjacent to each other.

[0265] The 2-4 electrodes RX4 arranged on the sixth imaginary circle C6 are connected in parallel to each other by the traces, and the 2-7 electrodes RX7 are also connected in parallel to each other by the traces. In addition, the 2-5 electrodes RX5 are connected in series by the traces, and the 2-6 electrodes RX6 are also connected in series by the traces.

[0266] The 2-4 electrodes RX4 are connected in parallel by the traces connected to one side of each of the 2-4 electrodes RX4, and the 2-7 electrodes RX7 are connected in parallel by the traces connected to the other side of each of the 2-7 electrodes RX7. In addition, the 2-5 electrodes RX5 adjacent to each other are connected in series, and the traces connecting two 2-5 electrodes RX5 adjacent to each other pass between the 2-7 electrode RX7 and the 2-4 electrode RX4 arranged between the two 2-5 electrodes RX5 adjacent to each other. In addition, the 2-6 electrodes RX6 adjacent to each other are connected in series, and the traces connecting two 2-6 electrodes RX6 adjacent to each other pass between the 2-7 electrode RX7 and the 2-4 electrode RX4 arranged between the two 2-6 electrodes RX6 adjacent to each other.

[0267] In addition, as still another embodiment of the present application, the arrangement structure and the routing structure of the second electrodes RX1, RX2, RX3, RX4, RX5, RX6, RX7 except for the 2-0 electrode RX0 shown in Figure 5 may be introduced into the touch sensor 550 shown in Figure 32

[0268] Figure 34 is a schematic view for explaining the electrode pattern structure of the touch sensor 3450 according to still another embodiment of the present application.

[0269] Referring to Figure 34 , the touch sensor 3450 according to still another embodiment of the present application differs from the touch sensor 3250 shown in Figure 2 in the configuration in which the number of channels of the second electrodes is reduced.​

[0270] Specifically, Figure 32 In the touch sensor 3250, the second electrodes RX0 to RX7 form 8 channels, while Figure 34 The second electrodes RX0 to RX5 of the touch sensor 3450 form a 6-channel configuration.

[0271] Import Figure 7 Taking the imaginary circle shown as an example, Figure 34 The touch sensor 3450 includes a second-first electrode RX1 and a second-second electrode RX2 disposed on a fourth imaginary circle C4, arranged in a repeating RX1-RX2 sequence. Furthermore, a second-first electrode RX1 and a second-second electrode RX2 are disposed between any one of the first electrodes TX0 to TX7 on the third virtual line C3 and any one of the first electrodes TX0 to TX7 on the fifth virtual line C5. The second-first electrode RX1 and the second-second electrode RX2 may have substantially the same surface area.

[0272] Figure 34 The touch sensor 3450 includes a second-third electrode RX3, a second-fourth electrode RX4, and a second-fifth electrode RX5 disposed on a sixth imaginary circle C6, arranged in a repeating RX3-RX4-RX5 sequence. Furthermore, a second-third electrode RX3, a second-fourth electrode RX4, and a second-fifth electrode RX5 are disposed between any one of the first electrodes TX0 to TX7 on the fifth virtual line C5 and any one of the first electrodes TX0 to TX7 on the seventh virtual line C7. The second-fourth electrode RX3, the second-fourth electrode RX4, and the second-fifth electrode RX5 may have substantially the same surface area.

[0273] Figure 35 yes Figure 34 The diagram shows the routing and trace connection structure of the touch sensor 3450.

[0274] Import Figure 4 The imaginary circle, see Figure 35 The second-1 electrode RX1, which is configured on the fourth imaginary circle C4, is connected in parallel with each other through traces, and the second-2 electrode RX2 is also connected in parallel with each other through traces.

[0275] The second-1 electrodes RX1 are connected in parallel via traces connected to one side of each second-1 electrode RX1, and the second-3 electrodes RX3 are connected in parallel via traces connected to the other side of each second-3 electrode RX3.

[0276] The 2-3 electrodes RX3 arranged on the sixth imaginary circle C6 are connected in parallel to each other by the traces, and the 2-5 electrodes RX5 are also connected in parallel to each other by the traces. In addition, the 2-4 electrodes RX4 are connected in series by the traces.

[0277] The 2-3 electrodes RX3 are connected in parallel by the traces connected to one side of each of the 2-3 electrodes RX3, and the 2-5 electrodes RX5 are connected in parallel by the traces connected to the other side of each of the 2-5 electrodes RX5. In addition, the 2-4 electrodes RX4 adjacent to each other are connected in series, and the traces connecting two 2-4 electrodes RX4 adjacent to each other pass between the 2-5 electrodes RX5 and the 2-3 electrodes RX3 arranged between the two 2-4 electrodes RX4 adjacent to each other.

[0278] In addition, as another embodiment of the present application, the arrangement structure and the routing structure of the second electrodes RX1, RX2, RX3, RX4, RX5 except for the 2-0 electrode RX0 shown in the touch sensor 550 can be introduced. Figure 5 Figure 34 In addition, as another embodiment of the present application, the arrangement structure and the routing structure of the second electrodes RX1, RX2, RX3, RX4, RX5 except for the 2-0 electrode RX0 shown in the touch sensor 550 can be introduced.

[0279] The features, structures, effects and the like described in the above embodiments are included in one embodiment of the present application, and are not necessarily limited to one embodiment. Further, the features, structures, effects and the like exemplified in each embodiment can be combined or modified by those skilled in the art to which the embodiments belong or to other embodiments. Therefore, it should be interpreted that the contents related to such combinations and modifications are included in the scope of the present application.

[0280] Further, although the above has been described centering on the embodiments, this is only an example and does not limit the present application, and those skilled in the art to which the embodiments belong can know that various modifications and applications not exemplified above can be made within the scope of the essential characteristics of the present embodiments. For example, each of the constituent elements specifically shown in the embodiments can be modified. Further, it should be interpreted that the differences related to these modifications and applications are included in the scope of the present application limited by the claims.​

Claims

1. A touch input device, wherein: a touch sensor including a circle, the touch sensor including a plurality of electrodes arranged on a plurality of imaginary circles having a common center and disposed at intervals, the plurality of imaginary circles including a first imaginary circle to a seventh imaginary circle, the plurality of electrodes including a plurality of first electrodes and a plurality of second electrodes, the plurality of first electrodes including a first-0 electrode to a first-7 electrode respectively arranged on a first imaginary circle, a third imaginary circle, a fifth imaginary circle, and a seventh imaginary circle among the first imaginary circle to the seventh imaginary circle, the plurality of second electrodes including: one or more second-0 electrodes arranged on a second imaginary circle among the first imaginary circle to the seventh imaginary circle; a plurality of second-1 electrodes, a plurality of second-2 electrodes, and a plurality of second-3 electrodes arranged on a fourth imaginary circle among the first imaginary circle to the seventh imaginary circle; a plurality of second-4 electrodes, a plurality of second-5 electrodes, a plurality of second-6 electrodes, and a plurality of second-7 electrodes arranged on a sixth imaginary circle among the first imaginary circle to the seventh imaginary circle.

2. The touch input device according to claim 1, wherein: when the touch sensor is driven in an interlaced driving mode, the plurality of first electrodes are any one of driving electrodes outputting a driving signal and receiving electrodes receiving a sensing signal, and the plurality of second electrodes are the other one.

3. The touch input device according to claim 1, wherein: the plurality of second-1 electrodes, the plurality of second-2 electrodes, and the plurality of second-3 electrodes are arranged in an arrangement order of repeating a second-1 electrode - a second-2 electrode - a second-3 electrode - a second-2 electrode, the plurality of second-4 electrodes, the plurality of second-5 electrodes, the plurality of second-6 electrodes, and the plurality of second-7 electrodes are arranged in an arrangement order of repeating a second-4 electrode - a second-5 electrode - a second-6 electrode - a second-7 electrode - a second-6 electrode - a second-5 electrode.

4. The touch input device according to claim 3, wherein: an upper area of the second-1 electrode and the second-3 electrode is larger than an upper area of the second-2 electrode, an upper area of the second-4 electrode and the second-7 electrode is larger than upper areas of the second-5 electrode and the second-6 electrode, a portion of the second-1 electrode, all of the second-2 electrode, and a portion of the second-3 electrode are arranged between any one of the first-0 electrode to the first-7 electrode arranged on the third imaginary circle and any one of the first-0 electrode to the first-7 electrode arranged on the fifth imaginary circle, a portion of the second-4 electrode, all of the second-5 electrode, all of the second-6 electrode, and a portion of the second-7 electrode are arranged between any one of the first-0 electrode to the first-7 electrode arranged on the fifth imaginary circle and any one of the first-0 electrode to the first-7 electrode arranged on the seventh imaginary circle.

5. The touch input device according to claim 1, wherein: ​ the plurality of the 2-1 electrodes, the plurality of the 2-2 electrodes and the plurality of the 2-3 electrodes are arranged in a repeating 2-1 electrode-2-2 electrode-2-3 electrode arrangement order, the plurality of the 2-4 electrodes, the plurality of the 2-5 electrodes, the plurality of the 2-6 electrodes and the plurality of the 2-7 electrodes are arranged in a repeating 2-4 electrode-2-5 electrode-2-6 electrode-2-7 electrode arrangement order.

6. The touch input device according to claim 5, wherein: the 2-1 electrode, the 2-2 electrode and the 2-3 electrode have the same upper surface area, the 2-4 electrode, the 2-5 electrode, the 2-6 electrode and the 2-7 electrode have the same upper surface area, any one of the 1-0 electrode to the 1-7 electrode arranged on the third imaginary circle and any one of the 1-0 electrode to the 1-7 electrode arranged on the fifth imaginary circle are arranged with the 2-1 electrode, the 2-2 electrode and the 2-3 electrode therebetween, any one of the 1-0 electrode to the 1-7 electrode arranged on the fifth imaginary circle and any one of the 1-0 electrode to the 1-7 electrode arranged on the seventh imaginary circle are arranged with the 2-4 electrode, the 2-5 electrode, the 2-6 electrode and the 2-7 electrode therebetween.

7. The touch input device according to any one of claims 1 to 6, wherein: the 2-0 electrode is further arranged on the center.

8. A touch input device, wherein: a touch sensor including a circle, the touch sensor includes a plurality of electrodes arranged on a single layer and spaced apart on a plurality of imaginary circles having a common center, the plurality of imaginary circles includes a first imaginary circle to a seventh imaginary circle, the plurality of electrodes includes a plurality of first electrodes and a plurality of second electrodes, the plurality of first electrodes includes a 1-0 electrode to a 1-7 electrode arranged on a first imaginary circle, a third imaginary circle, a fifth imaginary circle, a seventh imaginary circle, respectively, among the first imaginary circle to the seventh imaginary circle, the plurality of second electrodes includes: one or more 2-0 electrodes arranged on a second imaginary circle among the first imaginary circle to the seventh imaginary circle; a plurality of 2-1 electrodes and a plurality of 2-2 electrodes arranged on a fourth imaginary circle among the first imaginary circle to the seventh imaginary circle; a plurality of 2-3 electrodes, a plurality of 2-4 electrodes and a plurality of 2-5 electrodes arranged on a sixth imaginary circle among the first imaginary circle to the seventh imaginary circle.

9. The touch input device according to claim 8, wherein: when the touch sensor is driven in an interactive driving mode, the plurality of first electrodes are any one of driving electrodes outputting a driving signal and receiving electrodes receiving a sensing signal, and the plurality of second electrodes are the other.

10. The touch input device according to claim 8, wherein: the plurality of the 2-1 electrodes and the plurality of the 2-2 electrodes are arranged in a repeating 2-1 electrode-2-2 electrode arrangement order, The plurality of second-3 electrodes, the plurality of second-4 electrodes, and the plurality of second-5 electrodes are arranged in a repeating second-3 electrode-second-4 electrode-second-5 electrode-second-4 electrode arrangement order.

11. The touch input device of claim 8, wherein: the second-1 electrode and the second-2 electrode have the same upper surface area, the second-3 electrode and the second-5 electrode have the same upper surface area, the second-4 electrode has an upper surface area that is half of the upper surface area of the second-3 electrode and the second-5 electrode, a portion of the second-1 electrode and a portion of the second-2 electrode are disposed between any one of the first-0 electrode to the first-7 electrode disposed on the third imaginary circle and any one of the first-0 electrode to the first-7 electrode disposed on the fifth imaginary circle, a portion of the second-3 electrode, all of the second-4 electrode, and a portion of the second-5 electrode are disposed between any one of the first-0 electrode to the first-7 electrode disposed on the fifth imaginary circle and any one of the first-0 electrode to the first-7 electrode disposed on the seventh imaginary circle.

12. The touch input device of claim 8, wherein: the second-1 electrode and the second-2 electrode have the same upper surface area, the second-3 electrode, the second-4 electrode, and the second-5 electrode have the same upper surface area, a portion of the second-1 electrode and a portion of the second-2 electrode are disposed between any one of the first-0 electrode to the first-7 electrode disposed on the third imaginary circle and any one of the first-0 electrode to the first-7 electrode disposed on the fifth imaginary circle, a portion of the second-3 electrode, all of the second-4 electrode, and a portion of the second-5 electrode are disposed between any one of the first-0 electrode to the first-7 electrode disposed on the fifth imaginary circle and any one of the first-0 electrode to the first-7 electrode disposed on the seventh imaginary circle.

13. The touch input device of any one of claims 9 to 12, wherein: the second-0 electrode is also disposed on the center.

14. A touch sensor, wherein: a plurality of first electrodes and a plurality of second electrodes are included, the plurality of first electrodes includes: a first group of first electrodes; a second group of first electrodes surrounding the first group of first electrodes; a third group of first electrodes surrounding the second group of first electrodes; and a fourth group of first electrodes surrounding the third group of first electrodes, the plurality of second electrodes includes: one or more second-0 electrodes disposed between the first group of first electrodes and the second group of first electrodes; a plurality of second-1 electrodes, a plurality of second-2 electrodes, and a plurality of second-3 electrodes disposed between the second group of first electrodes and the third group of first electrodes; and a plurality of second-4 electrodes, a plurality of second-5 electrodes, a plurality of second-6 electrodes, and a plurality of second-7 electrodes disposed between the third group of first electrodes and the fourth group of first electrodes.

15. A touch sensor, wherein: The plurality of first electrodes and the plurality of second electrodes, The plurality of first electrodes includes: a first group of first electrodes; a second group of first electrodes surrounding the first group of first electrodes; a third group of first electrodes surrounding the second group of first electrodes; and a fourth group of first electrodes surrounding the third group of first electrodes, The plurality of second electrodes includes: one or more 2-0 electrodes configured between the first group of first electrodes and the second group of first electrodes; a plurality of 2-1 electrodes and a plurality of 2-2 electrodes configured between the second group of first electrodes and the third group of first electrodes; and a plurality of 2-3 electrodes, a plurality of 2-4 electrodes, and a plurality of 2-5 electrodes configured between the third group of first electrodes and the fourth group of first electrodes.

16. The touch sensor according to claim 14 or 15, wherein: The plurality of first electrodes are any one of a driving electrode outputting a driving signal and a receiving electrode receiving a sensing signal, and the plurality of second electrodes are the other one.

17. The touch sensor according to claim 14 or 15, wherein: The 2-0 electrodes are also configured in an area surrounded by the first group of first electrodes.

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