Touch operation detection device

Abstract

A touch operation detection device (100) is provided with a control unit (13). The control unit (13) recognizes the direction of a swipe operation on a touch sensor (11), which is disposed in a range operable by a finger of an operator in a state where an operation device (2) is gripped, on the basis of a finger-touched point on the touch sensor (11). The control unit (13) determines the direction of the swipe operation on the basis of a plurality of regions (R1 to R8) which are divided radially from the central part of the touch sensor (11). In the plurality of regions (R1 to R8), the size of at least one region is different from the size of the other regions.

Description

Touch operation detection device

[0001] The present invention relates to a touch operation detection device.

[0002] Patent document 1 discloses an input device in which a touch sensor is mounted on a press switch, and which enables a swipe operation when it detects a swipe operation within a predetermined time before detecting a press operation on the press switch.

[0003] Patent No. 5876013

[0004] The input device described in Patent Document 1 recognizes a swipe in a first direction from the lower region to the upper region, where the touch surface is divided into four parts vertically and horizontally; a swipe in a second direction from the upper region to the lower region; a swipe in a third direction from the left region to the right region; or a swipe in a fourth direction from the right region to the left region.

[0005] However, when an operator swipes with a finger, the position of the swipe trajectory varies depending on the range of movement of the operator's finger, which may result in the operator's intended swipe being misrecognized.

[0006] The present invention has been made in consideration of the above-mentioned problems, and its purpose is to provide a touch operation detection device and a touch operation detection method that can reduce erroneous recognition of a swipe operation intended by an operator.

[0007] A touch operation detection device according to one aspect of the present embodiment includes a control unit that determines the direction of a swipe operation on a touch sensor based on a touch point of a finger on the touch sensor, the touch sensor being positioned within a range operable by the finger of an operator holding an operation device. The control unit determines the direction of the swipe operation based on a plurality of regions radially divided from a center of the touch sensor, at least one of the plurality of regions having a size different from the sizes of the other regions.

[0008] According to one aspect of this embodiment, it is possible to reduce erroneous recognition of an operation intended by an operator.

[0009] FIG. 1 is a diagram illustrating the appearance of the instrument panel and its surroundings of a vehicle equipped with a touch operation detection device according to an embodiment. FIG. 2 is a block diagram illustrating the configuration of the touch operation detection device according to an embodiment. FIG. 3 is a diagram illustrating an example of multiple regions on a touch sensor of the touch operation detection device according to an embodiment. FIG. 4 is a diagram illustrating a trajectory of touch points obtained through a pre-experiment when a swipe operation in the left-right direction is performed on the touch sensor, along with a circle indicating the outer edge of the touch sensor. FIG. 5 is a diagram illustrating a trajectory of touch points obtained through a pre-experiment when a swipe operation in the up-down direction is performed on the touch sensor, along with a circle indicating the outer edge of the touch sensor. FIG. 6 is a diagram illustrating a trajectory of touch points obtained through a pre-experiment when a swipe operation in the left-right diagonal upward direction is performed on the touch sensor, along with a circle indicating the outer edge of the touch sensor. FIG. 7 is a diagram illustrating a trajectory of touch points obtained through a pre-experiment when a swipe operation in the left-right diagonal downward direction is performed on the touch sensor, along with a circle indicating the outer edge of the touch sensor.

[0010] The embodiments will be described with reference to the drawings. In the description of the drawings, the same parts are designated by the same reference numerals and the description thereof will be omitted.

[0011] For example, as shown in FIG. 1 , a vehicle 1 is equipped with an input device 10 used as a remote control for a car navigation device 4. The contents of instructions given by a driver who operates the input device 10 through operation of the input device 10 are captured by the car navigation device 4, and display information generated according to an application executed by the car navigation device 4 is displayed on a display unit 40. The applications referred to here include navigation for destination search and guidance, a media player for playing music and videos, meter display, SNS (Social Networking Service), email, etc. Note that the input device 10 can be used not only as an input device for the car navigation device 4 but also as an input device for in-vehicle devices such as a meter (not shown) and a head-up display (not shown).

[0012] 2 , the input device 10 includes a touch sensor 11, a detection unit 12, a control unit 13, and a storage unit 14. Note that the input device 10 only needs to have a function of detecting a touch point using at least the touch sensor 11 and the detection unit 12, and the control unit 13 and the storage unit 14 constitute a touch operation detection device 100 that determines the direction of a swipe operation based on the touch point, and may be configured separately from the input device 10.

[0013] The touch sensor 11 is arranged in a range that can be operated by, for example, the thumb of the operator while holding the operating device. For example, as shown in Fig. 1 , the touch sensor 11 is arranged on the spoke portion 3, which is a range that can be operated by the thumb of the operator while holding the rim of the steering wheel 2, which is the operating device, in the palm of the operator's hand. Note that in Fig. 1 , the touch sensor 11 is arranged in a range that can be operated by the thumb of the operator's right hand while holding the rim of the steering wheel 2 in the palm of the operator's hand, but the touch sensor 11 may also be arranged in a range that can be operated by the thumb of the operator's left hand while holding the rim of the steering wheel 2 in the palm of the operator's hand.

[0014] The touch sensor 11 is a capacitance sensor and has a detection surface that detects contact with the operator's thumb. When the thumb of the driver who is the operator touches the surface of the touch sensor 11, the detection surface detects the position where the operator's thumb is touching (hereinafter referred to as the touch point).

[0015] FIG. 3 shows an example of multiple regions used by the control unit to determine the direction of a swipe operation when the touch sensor 11 is positioned within a range operable by the thumb of the operator's right hand while holding the rim of the steering wheel 2 in the palm of the operator's hand. Note that when the touch sensor 11 is positioned within a range operable by the thumb of the operator's left hand while holding the rim of the steering wheel 2 in the palm of the operator's hand, the multiple regions are regions obtained by left-right inverting the multiple regions shown in FIG. 3 . For example, as shown in FIG. 3 , the multiple regions include eight regions R1 to R8 of different sizes. In the example shown in FIG. 3 , the touch sensor 11 is, for example, circular, and the regions R1 to R8 are eight regions radially divided at different angles from the center of the touch sensor 11. Note that the center of the touch sensor 11 here refers to the area near the center of the touch sensor 11, including the center of the touch sensor 11. Eight regions R1 to R8 are set by dividing the center of the touch sensor 11 at different angles relative to a predetermined position P0 on the outer edge of the touch sensor 11. In the example shown in FIG. 3 , the operator holds the rim of the steering wheel 2 with his or her palm, with the palm or the ball of the foot positioned on the outer edge 21 of the rim of the steering wheel 2, and moves the tip of the thumb while moving the joint to swipe the touch sensor 11. Therefore, the multiple regions R1 to R8 are preset based on the operating characteristics of the operator's thumb during a swipe operation. Details of how the multiple regions R1 to R8 shown in FIG. 3 are set will be described later with reference to FIGS. 4 to 7 . In the example shown in FIG. 3 , the eight regions R1 to R8 are different in size, but it is sufficient that the size of at least one of the multiple regions R1 to R8 is different from the size of the other regions. Furthermore, among the multiple regions R1 to R8, there is a gap between at least one pair of adjacent regions. For example, as shown in FIG. 3 , among the multiple regions R1 to R8, there is a gap between adjacent regions R1 and R2, regions R3 and R4, regions R4 and R5, regions R5 and R6, regions R6 and R7, regions R7 and R8, and regions R1 and R8.

[0016] The detection unit 12 detects a touch point on the touch sensor 11 .

[0017] The control unit 13 includes, for example, a central processing unit (CPU), a memory, and an input / output unit. A predetermined computer program is installed in the control unit 13, and the control unit 13 executes the computer program to determine the direction of a swipe operation on the touch sensor 11.

[0018] The control unit 13 recognizes the direction of a swipe operation on the touch sensor 11 based on the touch point detected by the detection unit 12. More specifically, the control unit 13 first recognizes the transition of the touch point (the trajectory of the touch point) from the time the touch point is detected by the detection unit 12, and recognizes a swipe operation when the length of the trajectory of the touch point is equal to or greater than a predetermined value. When the control unit 13 recognizes a swipe operation, it determines the direction of the swipe operation based on which of the multiple regions R1 to R8 the end point of the trajectory of the touch point is located. Note that the swipe operation referred to here collectively refers to operations such as "tracing," "sliding," "sweeping," "flicking," and "wiping" while touching the surface of the touch sensor 11 with the thumb.

[0019] For example, in the touch sensor 11 shown in Fig. 3, the control unit 13 determines the direction of the swipe operation as the leftward direction when the length of the trajectory of the touch points is equal to or greater than a predetermined value and the end point of the trajectory of the touch points is located in region R5, and determines the direction of the swipe operation as the rightward direction when the end point of the trajectory of the touch points is located in region R1. Furthermore, the control unit 13 determines the direction of the swipe operation as the upward direction when the length of the trajectory of the touch points is equal to or greater than a predetermined value and the end point of the trajectory of the touch points is located in region R3, and determines the direction of the swipe operation as the downward direction when the end point of the trajectory of the touch points is located in region R7. The control unit 13 determines the direction of the swipe operation as the upper-left direction when the length of the trajectory of the touch points is equal to or greater than a predetermined value and the end point of the trajectory of the touch points is located in region R4, and determines the direction of the swipe operation as the upper-right direction when the end point of the trajectory of the touch points is located in region R2. The control unit 13 determines that the direction of the swipe operation is the downward right direction if the length of the trajectory of the touch point is equal to or greater than a predetermined value and the end point of the trajectory of the touch point is located in region R8, and determines that the direction of the swipe operation is the downward left direction if the end point of the trajectory of the touch point is located in region R6.

[0020] The storage unit 14 is implemented with semiconductor memory elements such as static RAM (SRAM), dynamic RAM (DRAM), and flash RAM, and these memory elements store a range of multiple areas. The memory elements of the storage unit 14 also store an operating system (OS) and application programs executed by the control unit 13. The memory elements of the storage unit 14 also store various data generated during the execution of the application programs.

[0021] The display unit 40 is a display monitor that uses a liquid crystal display (LCD), an organic light-emitting diode (OLED), electronic paper, or the like as a display device, and displays display data generated by an application executed by the control unit 13 .

[0022] Next, an example of a method for setting the multiple regions R1 to R8 shown in FIG. 3 will be described with reference to FIGS. 4 to 7. FIGS. 4 to 7 are diagrams showing the transition of the touch point (the trajectory of the touch point) when a swipe operation in each direction is performed on the touch sensor 11, which was previously obtained through an experiment, along with a circle indicating the outer edge of the touch sensor 11. In FIGS. 4 to 7, the operator performs the swipe operation in each direction with the thumb of his right hand. If the operator performs the swipe operation in each direction with the thumb of his left hand, it can be expected that the results of FIGS. 4 to 7 will be reversed horizontally. The number of data obtained in FIGS. 4 to 7 is not particularly limited.

[0023] In the input device 10, regions R1 to R8 are set in advance for the control unit 13 to determine the direction of a swipe operation based on the trajectories of touch points shown in FIGS. 4 to 7 . For example, FIG. 4A shows the trajectory of touch points when the operator performs a leftward swipe operation. In FIG. 4A, a region R5 can be set for the control unit 13 to determine a leftward swipe operation based on a range A1 that generally includes the end point of a trajectory of touch points with a length equal to or greater than a predetermined value. In FIG. 4B, a region R1 can be set for the control unit 13 to determine a rightward swipe operation based on a range A2 that generally includes the end point of a trajectory of touch points with a length equal to or greater than a predetermined value.

[0024] 4A and 4B, the operator performs leftward and rightward swipes with the thumb of his right hand. When performing a leftward swipe with the thumb of his right hand, the thumb is abducted in a direction away from the outer edge 21 of the steering wheel 2, i.e., the base of the thumb. Conversely, when performing a rightward swipe with the thumb of his right hand, the thumb is adducted in a direction in which the fingertip approaches the outer edge 21 of the steering wheel 2, i.e., the base of the thumb. FIG. 4B shows that a rightward swipe with the thumb of the operator's right hand has an overall operation characteristic of swiping to the upper right due to the joint characteristics of the thumb.

[0025] In this case, the range A1 in Fig. 4A that generally includes the end point of the trajectory of the touch point is larger than the range A2 in Fig. 4B that generally includes the end point of the trajectory of the touch point. This indicates that the variation in the trajectory of the touch point when the operator performs a leftward swipe operation is larger than the variation in the trajectory of the touch point when the operator performs a rightward swipe operation. Therefore, the region R5 set based on the range A1 is larger than the region R1 set based on the range A2. In other words, when the operator holds the rim of the steering wheel 2 in the palm of the operator and performs leftward and rightward swipe operations with their thumbs, the area (angle) of the region R5 that is located farther from the outer edge 21 of the steering wheel 2 is larger than the area (angle) of the region R1 that is located closer to the outer edge 21 of the steering wheel 2. Note that the characteristic that the area (angle) of region R5 is larger than the area (angle) of region R1 also applies when performing left and right swipes with a finger other than the thumb, such as the index finger.

[0026] 5A shows the trajectory of touch points when the operator performs an upward swipe operation. Based on a range A3 in FIG. 5A that generally includes the end point of a trajectory of touch points with a length equal to or greater than a predetermined value, the control unit 13 can set a region R3 for determining whether the trajectory is an upward swipe operation. Based on a range A4 in FIG. 5B that generally includes the end point of a trajectory of touch points with a length equal to or greater than a predetermined value, the control unit 13 can set a region R7 for determining whether the trajectory is a downward swipe operation.

[0027] 5A and 5B, the operator performs an upward and downward swipe operation with the thumb of the right hand. When performing an upward swipe operation with the thumb of the right hand, the thumb is adducted upward, and conversely, when performing a downward swipe operation with the thumb of the right hand, the thumb is abducted downward.

[0028] In this case, the range A3 in Fig. 5A that generally includes the end point of the trajectory of the touch point is larger than the range A4 in Fig. 5B that generally includes the end point of the trajectory of the touch point. This indicates that the variation in the trajectory of the touch point when the operator performs an upward swipe operation is larger than the variation in the trajectory of the touch point when the operator performs a downward swipe operation. Therefore, the region R3 set based on the range A3 is larger than the region R7 set based on the range A4. In other words, when the operator holds the rim of the steering wheel 2 in the palm of the operator and performs upward and downward swipe operations with their thumbs, the area (angle) of the region R3 located above the center of the touch sensor 11 is larger than the area (angle) of the region R7 located below the center of the touch sensor 11. The characteristic that the area (angle) of region R3 is larger than the area (angle) of region R7 also applies when performing upward and downward swipes with a finger other than the thumb, such as the index finger.

[0029] For example, (a) of FIG. 6 shows the trajectory of touch points when the operator performs a swipe operation in the upper left direction. Based on a range A5 in FIG. 6(a) that generally includes the end point of a trajectory of touch points with a length equal to or greater than a predetermined value, the control unit 13 can set a region R4 for determining whether a swipe operation in the upper left direction is occurring. Here, in (a) of FIG. 6, the operator performs a swipe operation in the upper left direction with the thumb of his right hand. When performing a swipe operation in the upper left direction with the thumb of his right hand, the thumb is extended in a direction away from the outer edge 21 of the steering wheel 2, i.e., the base of the thumb. Furthermore, (b) of FIG. 6 shows the trajectory of touch points when the operator performs a swipe operation in the upper right direction. Based on a range A6 in FIG. 6(b) that generally includes the end point of a trajectory of touch points with a length equal to or greater than a predetermined value, the control unit 13 can set a region R2 for determining whether a swipe operation in the upper right direction is occurring. 6B, the operator performs a swipe operation in the upper right direction with the thumb of the right hand. When performing a swipe operation in the upper right direction with the thumb of the right hand, the thumb is adducted in a direction approaching the base of the thumb.

[0030] For example, (a) of FIG. 7 shows the trajectory of touch points when the operator performs a swipe operation in the lower right direction. In the input device 10, a region R8 for determining whether a swipe operation in the lower right direction is performed can be set based on a range A7 in FIG. 7(a) that generally includes the end point of a trajectory of touch points with a length equal to or greater than a predetermined value. Here, in (a) of FIG. 7, the operator performs a swipe operation in the lower right direction with the thumb of his right hand. When performing a swipe operation in the lower right direction with the thumb of his right hand, the thumb is bent in a direction approaching the outer edge 21 of the steering wheel 2, i.e., the base of the thumb. Also, (b) of FIG. 7 shows the trajectory of touch points when the operator performs a swipe operation in the lower left direction. In (b) of FIG. 7, a region R6 for determining whether a swipe operation in the lower left direction is performed can be set based on a range A8 in FIG. 7(b) that generally includes the end point of a trajectory of touch points with a length equal to or greater than a predetermined value. 7B, the operator performs a swipe operation in the lower left direction with the thumb of the right hand. When performing a swipe operation in the lower left direction with the thumb of the right hand, the thumb is abducted in a direction away from the base of the thumb.

[0031] In this way, the ranges of the multiple regions R1 to R8, i.e., the positions and areas (angles) of the multiple regions R1 to R8, are set based on the operation characteristics of the operator's thumb during a swipe operation. In this embodiment, with reference to FIGS. 3 to 7 , a method for setting multiple regions has been described for the case where the touch sensor 11 is arranged in a range operable by the thumb of the operator's right hand while holding the rim of the steering wheel 2 in the operator's palm, and the operator performs a swipe operation in each direction with the thumb of the right hand while holding the rim of the steering wheel 2 in the operator's palm. In the case where the touch sensor 11 is arranged in a range operable by the thumb of the operator's left hand while holding the rim of the steering wheel 2 in the operator's palm, and the operator performs a swipe operation in each direction with the thumb of the left hand while holding the rim of the steering wheel 2 in the operator's palm, the multiple regions may be set by flipping the multiple regions R1 to R8 shown in FIG. 3 horizontally. In addition, when the operator holds the rim of the steering wheel 2 in the palm of the operator's hand and performs a swipe operation in each direction with the thumb of the left hand, the multiple areas may be set based on data obtained in advance through experiments that indicates the progression of the touch point (the trajectory of the touch point) when the operator performs a swipe operation in each direction on the touch sensor 11 with the thumb of the left hand.

[0032] Furthermore, a region that the control unit 13 does not use when recognizing a swipe operation may be set based on the operating characteristics of the operator's thumb during a swipe operation. For example, previously acquired experimental data has revealed that a region R9 exists between a region R1 located close to the outer edge 21 of the steering wheel 2 and a region R8 located below the region R1, where false detection of rightward swipe operations and rightward and downward swipe operations is frequent. A predetermined region R9 in which the control unit 13 disables recognition of a swipe operation may be set in advance in the input device 10. In this case, the control unit 13 disables recognition of a swipe operation when the end point of the trajectory of the touch point is located in the predetermined region R9 between the region R1 located close to the outer edge of the steering wheel 2 and the region R8 located below the region R1.

[0033] [Operation and Effect] As described above, the touch operation detection device 100 according to one embodiment includes the control unit 13. The control unit 13 determines the direction of a swipe operation on the touch sensor 11 based on a touch point of a finger on the touch sensor 11, which is arranged within a range operable by the operator's finger while holding the operation device. The operation device is, for example, the steering wheel 2, and the finger is the operator's thumb while holding the rim of the steering wheel 2 in the operator's palm. The control unit 13 determines the direction of the swipe operation based on a plurality of regions R1 to R8 divided radially from the center of the touch sensor 11. Of the plurality of regions R1 to R8, at least one region has a size different from the other regions.

[0034] In the touch operation detection device 100 according to an embodiment, the regions R1 to R8 are set based on the operation characteristics of the operator's finger during a swipe operation. The touch sensor 11 has a circular shape, and the regions R1 to R8 are regions that are radially divided from the center of the touch sensor 11 at least partially at different angles.

[0035] The touch operation detection device 100 can provide an area of ​​a size suitable for determining the direction of each swipe operation in a range suitable for determining the direction of each swipe operation on the touch sensor 11 arranged within a range operable by the operator's finger. This makes it easier for the touch operation detection device 100 to determine the direction of the swipe operation intended by the operator, thereby reducing erroneous recognition of the swipe operation. Note that, although the above-described embodiment is based on the premise that the touch sensor 11 is operated with the thumb, the present invention does not limit the finger operating the touch sensor 11 to the thumb. When the touch sensor 11 is operated with another finger, multiple areas can be set based on the operation characteristics of the other finger.

[0036] The multiple regions R1 to R8 also include a first region R5 located far from the outer edge 21 of the manipulation device 2, and a second region R1 located close to the outer edge 21 of the manipulation device 2. The area of ​​the first region R5 is larger than the area of ​​the second region R1.

[0037] The variation in the trajectory of the touch point of the thumb when performing a swipe operation is greater when the swipe operation is performed toward the first region R5, which is located farther from the outer edge 21 of the manipulation device 2, than when the swipe operation is performed toward the second region R1, which is located closer to the outer edge 21 of the manipulation device. Therefore, the touch operation detection device 100 can tolerate the variation in the trajectory of the touch point of the thumb by making the area of ​​the first region R5 larger than the area of ​​the second region R1. The touch operation detection device 100 can more easily determine the direction of the swipe operation intended by the operator, and can further reduce erroneous recognition of the swipe operation.

[0038] The regions R1 to R8 include a third region R3 located above the center of the touch sensor 11 and a fourth region R7 located below the center of the touch sensor 11. The area of ​​the third region R3 is larger than the area of ​​the fourth region R7.

[0039] The variation in the trajectory of the touch point of the thumb when performing a swipe operation is greater when the swipe operation is performed toward the third region R3 located above the center of the touch sensor 11 than when the swipe operation is performed toward the fourth region R7 located below the center of the touch sensor 11. Therefore, the touch operation detection device 100 can tolerate the variation in the trajectory of the touch point of the thumb by making the area of ​​the third region R3 larger than the area of ​​the fourth region R7. This makes it easier to determine the direction of the swipe operation intended by the operator, and can further reduce erroneous recognition of the swipe operation.

[0040] Furthermore, among the plurality of regions R1 to R8, there is a gap between at least one pair of adjacent regions. By providing a gap between adjacent regions among the plurality of regions R1 to R8 for distinguishing the direction of a swipe operation, recognition of a swipe operation toward the gap region can be disabled, and erroneous recognition of a swipe operation in an adjacent direction can be reduced.

[0041] In addition, the control unit 13 of the touch operation detection device 100 according to one embodiment disables recognition of a swipe operation when the end point of the trajectory of the touch point is located in a predetermined region R9 between the second region R1 of the touch sensor 11 and a fifth region R8 located below the second region R1.

[0042] The predetermined region R9 between the second region R1 and the fourth region R7 is a region where erroneous recognition of a swipe operation toward the right and a swipe operation toward the bottom right is common. Therefore, when the touch operation detection device 100 recognizes a trajectory of a touch point toward the predetermined region R9 between the second region R1 and the fourth region R7, the touch operation detection device 100 disables recognition of the swipe operation, thereby further reducing erroneous recognition of the swipe operation.

[0043] Although the embodiments of the present invention have been described above, the descriptions and drawings that form part of this disclosure should not be understood to limit the present invention. Various alternative embodiments, examples, and operating techniques will become apparent to those skilled in the art from this disclosure.

[0044] 2 Operation device (steering wheel) 10 Input device 11 Touch sensor 13 Control unit 100 Touch operation detection device R1 to R8 Multiple regions

Claims

1. The device includes a control unit that determines the direction of a swipe operation on a touch sensor based on the point of contact of the operator's finger on the touch sensor, which is located within an area operable by the operator's finger while the outer edge of the operating device is being held. The control unit, Based on multiple regions radially divided from the center of the touch sensor, the direction of the swipe operation is determined. The aforementioned multiple regions are such that at least one region has a different size than the other regions. The plurality of regions include a first region located far from the outer edge of the operating device and a second region located close to the outer edge of the operating device. The area of ​​the first region is larger than the area of ​​the second region. A touch operation detection device characterized by the following features.

2. The aforementioned operating device is a steering wheel, The aforementioned finger is the operator's thumb while the operator is holding the rim of the steering wheel with the operator's palm. The touch operation detection device according to feature 1.

3. (delete)

4. The plurality of regions include a third region located above the center of the touch sensor and a fourth region located below the center of the touch sensor. The area of ​​the third region is greater than the area of ​​the fourth region. The touch operation detection device according to claim 1 or 2.

5. The control unit, If the endpoint of the trajectory of the touch point is located in a predetermined area between the second area and the fifth area located below the second area, the recognition of the swipe operation is disabled. A touch operation detection device according to any one of claims 1, 2, or 4.

6. The plurality of regions are set based on the operating characteristics of the operator's finger during a swipe operation. A touch operation detection device according to any one of claims 1, 2, 4, or 5.

7. Among the aforementioned multiple regions, there is a gap between at least one adjacent pair of regions. A touch operation detection device according to any one of claims 1, 2, 4 to 6.

8. The aforementioned touch sensor has a circular shape, The aforementioned multiple regions are regions that are divided radially from the center of the touch sensor, with at least a portion of each region being at a different angle. A touch operation detection device according to any one of claims 1, 2, 4 to 7.