JP2016119022A - User interface device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a user interface device capable of further improving an operability.SOLUTION: A user interface device includes: an operation unit 11 for operating a device; a finger number detection unit 12 for detecting the number of fingers of an operator who touches the operation unit 11; a display unit 13 for displaying the content of the device allotted with the number of fingers detected by the finger number detection unit 12; and an operation control unit 151 capable of operating the content displayed in the display unit 13.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a user interface device that operates content and the like.

  Conventionally, there is a user interface device for a user to operate a computer device or the like (for example, Patent Document 1). In the technique of Patent Document 1, first, a plurality of contact points by a user's finger to the touch pad are detected, and when a transition is made to the fingertip button mode, an operation with a finger whose contact point is detected is possible.

JP 2010-9931 A

  However, the technique of Patent Document 1 is troublesome because a finger cannot be operated thereafter unless a predetermined trigger operation (such as a tap on a predetermined button) is input in order to shift to the fingertip button mode. Further, when the mode is changed to the fingertip button mode, even if the contact point of the user's finger to the touch pad increases thereafter, the newly touched finger is not recognized, and there is a possibility that the operation becomes difficult. In addition, since an operation function is assigned to any finger, for example, a finger that is difficult to move alone, such as a little finger, may be difficult to operate.

  Therefore, an object of the present invention made in view of the above problems is to provide a user interface device that can further improve operability.

In order to solve the above problems, a user interface device according to the first aspect of the present invention provides:
An operation unit for operating the device;
A finger number detection unit for detecting the number of fingers of the operator who has touched the operation unit;
A display unit for displaying the content of the device assigned to the number of fingers detected by the finger number detection unit;
An operation control unit that enables operation of content displayed on the display unit;
It is characterized by having.

A user interface device according to the second aspect of the present invention provides:
The operation unit is a touch panel,
The finger number detection unit detects the order of the contact position of the operator's finger that has touched the touch panel,
The operation control unit enables the content displayed on the display unit to be operated by a finger that finally touches the touch panel.

A user interface device according to the third aspect of the present invention is:
The operation unit is a dial switch including a plurality of conductive members,
The finger number detection unit detects the number of fingers of an operator who has contacted the plurality of conductive members,
The operation control unit can operate the content displayed on the display unit by the dial switch.

A user interface device according to the fourth aspect of the present invention provides:
The content of the device is composed of a plurality of upper contents and a plurality of lower contents respectively associated with the upper contents, and a predetermined time after detecting the touch of at least one finger by the finger number detection unit The top content assigned to the number of fingers detected at the time of passage is selected,
The display unit displays content assigned to the number of fingers detected after the upper content is selected by the finger number detection unit among a plurality of lower content associated with the selected upper content. It is characterized by displaying.

A user interface device according to the fifth aspect of the present invention provides:
When a content selection operation is detected before the predetermined time elapses, a higher-level content assigned to the number of fingers detected when the content selection operation is detected is selected,
The display unit includes, among a plurality of lower-level contents associated with the selected upper-level content, a lower level assigned to the number of fingers detected after the content selection operation is detected by the finger number detection unit. It is characterized by displaying content.

A user interface device according to the sixth aspect of the present invention provides:
When the number of fingers detected by the finger number detection unit is 0, the upper content is reselected.

  According to the user interface device according to the embodiment of the present invention, the operability can be further improved.

1 is an overall schematic diagram of a user interface device according to a first embodiment. 2 is a functional block diagram of a user interface device according to Embodiment 1. FIG. FIG. 3 is a schematic diagram relating to detection of the number of fingers in the first embodiment. 6 is a table showing a correspondence relationship between the number of fingers and device content in the user interface device according to the first embodiment. 6 is a diagram illustrating a first operation example of the user interface device according to Embodiment 1. FIG. 6 is a diagram illustrating a second operation example of the user interface device according to the first embodiment. FIG. FIG. 10 is a diagram illustrating a third operation example of the user interface apparatus according to the first embodiment. FIG. 10 is a diagram illustrating a fourth operation example of the user interface apparatus according to the first embodiment. FIG. 10 is a diagram illustrating a fifth operation example of the user interface apparatus according to the first embodiment. FIG. 10 is a diagram illustrating a sixth operation example of the user interface apparatus according to the first embodiment. 4 is a flowchart illustrating an operation of the user interface device according to the first embodiment. FIG. 3 is an overall schematic diagram of a user interface device according to a second embodiment. 6 is a functional block diagram of a user interface device according to a second embodiment. FIG. FIG. 6 is a perspective view, a top view, a rear view, and a side view of an operation unit (dial switch) of a user interface device according to a second embodiment. FIG. 10 is a diagram illustrating an example of a portion that is touched by an operator's finger when operating the operation unit (dial switch) according to the second embodiment.

  Embodiments of the present invention will be described below.

(Embodiment 1)

  FIG. 1 is an overall schematic diagram of a user interface device 1 according to Embodiment 1 of the present invention. The user interface device 1 is provided in a vehicle, for example, and is operated by a driver. Hereinafter, in the present embodiment, the user interface device 1 will be described as being provided in a vehicle. The user interface device 1 receives input from the user and controls various devices such as a car navigation system, an audio system, and an air conditioner. As shown in FIG. 1, the user interface device 1 according to Embodiment 1 of the present invention includes an operation unit 11 (touch panel 11) and a display unit 13. Note that the user interface device 1 may include a palm rest 16. The palm rest 16 is provided in front of the touch panel 11 and is provided for placing a hand to be operated when the user operates the touch panel 11.

  FIG. 2 is a functional block diagram of the user interface device 1 according to Embodiment 1 of the present invention. The user interface device 1 according to Embodiment 1 of the present invention includes an operation unit 11 (touch panel 11), a finger number detection unit 12, a display unit 13, a storage unit 14, and a control unit 15.

  In the first embodiment, the operation unit 11 is a touch panel. Hereinafter, it is also referred to as a touch panel 11. The touch panel 11 may use any operation method such as a capacitance method or a resistance film method. The touch panel 11 accepts touch input by a user and operates devices such as audio, air conditioning (air conditioner), and car navigation. The device to be operated is not limited to this, and any device may be used.

  The finger number detection unit 12 detects the number of fingers of the operator who has touched the touch panel 11. In addition, the finger number detection unit 12 detects the order of the finger positions of the operator who has touched the touch panel 11. FIG. 3 shows a schematic diagram relating to detection of the number of fingers. In the example shown in FIG. 3, an example is shown in which the user's thumb, index finger, and middle finger are in contact with the touch panel 11 in this order. In this case, the finger number detection unit 12 detects that the number of fingers of the operator who has touched the touch panel 11 is three. Further, it is detected that the finger touches the position where the first thumb, the second index finger, and the third finger contact.

  The display unit 13 displays the content of the device assigned to the number of fingers detected by the finger number detection unit 12. The storage unit 14 stores various information related to the user interface device 1. For example, the storage unit 14 stores a table indicating the correspondence between the number of fingers and the content of the device. The display unit 13 refers to the table stored in the storage unit 14 and displays the content of the device corresponding to the detected number of fingers.

  The control unit 15 performs various controls related to the user interface device 1. The control unit 15 includes an operation control unit 151. The operation control unit 151 enables the content displayed on the display unit 13 to be operated based on the user's operation on the touch panel 11.

  FIG. 4 shows a table indicating the correspondence between the number of fingers stored in the storage unit 14 and the content of the device. Preferably, the device content includes a plurality of upper contents (first layer contents) and a plurality of lower contents (second layer contents) respectively associated with the upper contents.

  FIG. 4A is a table showing the correspondence between the number of detected fingers and the upper content. In the example shown in FIG. 4A, audio, air conditioning, car navigation, telephone, and the Internet are associated with the detected number of fingers (1 to 5), respectively. 4B to 4E are tables relating to lower-level contents associated with audio, air conditioning, car navigation, and telephone, respectively. Also in the table relating to the lower content, the number of detected fingers and each content are associated with each other.

  In this way, when the content of the device is composed of upper content and lower content, the control unit 15 first detects a contact with at least one finger by the finger number detection unit 12, and then when a predetermined time has elapsed (for example, The high-order content assigned to the number of fingers detected at the time of 2 seconds after detecting contact with at least one finger is selected. Then, the display unit 13 displays the content assigned to the number of fingers detected by the finger number detection unit 12 after selecting the higher content among the plurality of lower content associated with the selected higher content. indicate.

  FIG. 5 is a diagram illustrating a first operation example of the user interface device 1 according to the first embodiment. First, the operator touches the touch panel 11 with only the index finger (step 1). The finger number detection unit 12 detects the contact of the index finger, and determines the number of fingers (1 in this case) detected when a predetermined time has elapsed since the detection (step 2). Then, the control unit 15 selects the content “audio” whose number of fingers is associated with 1 (step 3). The display unit 13 displays the content assigned with 1 finger. Preferably, the display unit 13 displays a correspondence table between the number of fingers and the upper content shown in FIG. 5C, and highlights the selected content. In this way, the operator can easily grasp which upper content has been selected.

  FIG. 6 is a diagram illustrating a second operation example of the user interface device 1 according to the first embodiment. This operation is performed following the first operation example. Following step 3, the operator touches the touch panel 11 with only the index finger (step 4a). The finger number detection unit 12 detects the number of fingers of the operator who has touched the touch panel 11 (here, 1). Then, the control unit 15 selects the lower content “play / pause” assigned to the number of fingers of 1 (step 5a). The display unit 13 displays the content “play / pause” assigned to the number of fingers of 1. Preferably, the display unit 13 displays a correspondence table between the number of fingers and the lower content shown in FIG. 6B, and highlights the selected lower content. The operation control unit 151 enables the content displayed on the display unit 13 to be operated based on the user's operation on the touch panel 11. Specifically, the operation control unit 151 allows the content displayed on the display unit 13 to be operated by the finger that finally touched the touch panel 11 (step 6a). That is, the operation control unit 151 enables the content displayed on the display unit 13 to be operated with the finger having the last contact order based on the contact order detected by the finger number detection unit 12. In the example shown in FIG. 6, the finger that last touched the touch panel 11 is the index finger. In this case, for example, playback is performed when the index finger is slid in the right direction, and is paused when the index finger is slid in the left direction. Preferably, the display unit 13 displays that playback is performed when the finger slides in the right direction. Similarly, the display unit 13 preferably displays that the finger is paused when the finger is slid leftward.

  FIG. 7 is a diagram illustrating a third operation example of the user interface device 1 according to the first embodiment. This operation is performed following the first operation example. Following step 3, the operator touches the touch panel 11 with the middle finger and the index finger in this order (step 4b). The finger number detection unit 12 detects the number of fingers of the operator who has touched the touch panel 11 (here, 2). Then, the control unit 15 selects the lower content “volume” assigned to the number of fingers of 2 (step 5b). The display unit 13 displays the content “volume” assigned to the number of fingers of 2. Preferably, the display unit 13 displays a correspondence table between the number of fingers and the lower content shown in FIG. 7B, and highlights the selected lower content. The operation control unit 151 enables the content displayed on the display unit 13 to be operated based on the user's operation on the touch panel 11. Specifically, the operation control unit 151 allows the content displayed on the display unit 13 to be operated by the finger that finally touched the touch panel 11 (step 6b). In the example shown in FIG. 7, the finger that last touched the touch panel 11 is the index finger. In this case, for example, when the index finger is slid upward, the volume is increased, and when the index finger is slid downward, the volume is decreased. Preferably, the display unit 13 displays that the volume increases when the finger is slid upward. Similarly, the display unit 13 preferably displays that the volume decreases when the finger slides downward.

  FIG. 8 is a diagram illustrating a fourth operation example of the user interface device 1 according to the first embodiment. This operation is performed following the first operation example. Following step 3, the operator touches the touch panel 11 in this order with the middle finger, thumb, and index finger (step 4c). The finger number detection unit 12 detects the number (three in this case) of the operator's finger that has touched the touch panel 11. Then, the control unit 15 selects the lower content “music selection” assigned to the number of fingers of 3 (step 5c). The display unit 13 displays the content “song selection” assigned to the number of fingers of three. Preferably, the display unit 13 displays a correspondence table between the number of fingers and the lower content shown in FIG. 8B, and highlights the selected lower content. The operation control unit 151 enables the content displayed on the display unit 13 to be operated based on the user's operation on the touch panel 11. Specifically, the operation control unit 151 allows the content displayed on the display unit 13 to be operated by the finger that finally touched the touch panel 11 (step 6c). In the example shown in FIG. 8, the finger that last touched the touch panel 11 is the index finger. In this case, for example, when the index finger is slid in the right direction, the next song is selected, and when the left finger is slid in the left direction, the previous song is selected. Preferably, the display unit 13 displays that the next song is selected when the finger is slid rightward. Similarly, the display unit 13 preferably displays that the previous song is selected when the finger is slid leftward.

  FIG. 9 is a diagram illustrating a fifth operation example of the user interface device 1 according to the first embodiment. First, the operator touches the touch panel 11 in this order with the middle finger and the index finger (step 1d). The finger number detection unit 12 detects contact with the middle finger, and determines the number of fingers (here, 2) detected when a predetermined time has elapsed since the detection (step 2d). Then, the control unit 15 selects the content “air conditioning” in which the number of fingers is associated with 2 (step 3d). The display unit 13 displays the content assigned to the number of fingers of 2. Preferably, the display unit 13 displays a correspondence table between the number of fingers and the upper content shown in FIG. 9C, and highlights the selected content.

  FIG. 10 is a diagram illustrating a sixth operation example of the user interface device 1 according to the first embodiment. This operation is performed following the fifth operation example. Subsequent to step 3d, the operator touches the touch panel 11 in this order with the middle finger and the index finger (step 4d). The finger number detection unit 12 detects the number of fingers of the operator who has touched the touch panel 11 (here, 2). Then, the control unit 15 selects the lower-level content “temperature adjustment” assigned to the number of fingers of 2 (step 5d). The display unit 13 displays the content “temperature adjustment” assigned to the number of fingers of 2. Preferably, the display unit 13 displays a correspondence table between the number of fingers and the lower content shown in FIG. 10B, and highlights the selected lower content. The operation control unit 151 enables the content displayed on the display unit 13 to be operated based on the operation of the operation unit 11 by the user. Specifically, the operation control unit 151 allows the content displayed on the display unit 13 to be operated by the finger that finally touched the touch panel 11 (step 6d). In the example shown in FIG. 10, the finger that last touched the touch panel 11 is the index finger. In this case, for example, when the index finger is slid upward, the set temperature is increased, and when the index finger is slid downward, the set temperature is decreased. Preferably, the display unit 13 displays that the temperature setting is high when the finger is slid upward. Similarly, the display unit 13 preferably displays that the temperature setting is lowered when the finger is slid downward.

  Next, the operation of the user interface device 1 according to Embodiment 1 of the present invention will be described with reference to the flowchart shown in FIG.

  First, the finger number detection unit 12 is in contact with the touch panel 11 when a predetermined time elapses after detecting contact with at least one finger (for example, at a point of 2 seconds after detecting contact with at least one finger). The number of fingers of the operator is detected (step S10).

  Next, the control unit 15 selects the upper content allocated to the number of fingers that are in contact when the predetermined time has passed (step S20).

  Subsequently, the finger number detection unit 12 detects the number of fingers of the operator who has touched the touch panel 11 and the order of the contact positions after selecting the upper content (that is, after the predetermined time has elapsed) (step S30).

  Subsequently, the display unit 13 displays the content assigned to the number of fingers detected by the finger number detection unit 12 among a plurality of lower content associated with the selected upper content (step S40). ).

  The operation control unit 151 enables the content displayed by the display unit 13 to be operated based on the operation of the user operation unit 11 (step S50). Specifically, the operation control unit 151 enables the content displayed on the display unit 13 to be operated by a finger that finally touches the touch panel 11.

  As described above, according to the user interface device 1 of the first embodiment, since content is selected according to the number of fingers detected by the finger number detection unit 12, operations such as mode transition are unnecessary, and operability is improved. Can be further improved. In addition, since the content displayed on the display unit 13 can be operated by the finger that finally touched the touch panel based on the order of the finger contact position detected by the finger number detection unit 12, the operation can be performed with a desired finger that is easy to operate. Is possible. That is, it is possible to prevent an operation with a finger that is difficult to operate with a little finger or the like.

  In the present embodiment, the control unit 15 selects the upper content assigned to the number of fingers that are in contact when a predetermined time has elapsed, but the present invention is not limited to this. For example, if the control unit 15 detects a predetermined operation by the user (hereinafter referred to as a content selection operation) before the predetermined time has elapsed, the control unit 15 is assigned to the number of fingers detected when the content selection operation is detected. Alternatively, higher-level content may be selected. The content selection operation is, for example, a pressing operation with the finger touched last. In addition, for example, it may be a sliding operation with the finger that touched last, a pressing operation with all the fingers that are in contact, or a sliding operation.

  If the number of fingers detected by the finger number detection unit 12 is 0 within a predetermined time after selecting the upper content (for example, within 3 seconds after selecting the upper content), the upper content is reselected. You may make it perform. With this configuration, when the operator does not touch the touch panel 11 for a certain period of time, the number of fingers detected by the finger number detection unit 12 becomes 0, and it is possible to start over from the selection of the upper content, thereby improving operability. It can be improved further.

  When the number of touching fingers changes, content assigned to the changed number of fingers may be displayed and operated. For example, it is assumed that the lower content “play / pause” is first operated with only the index finger and then the touch panel 11 is touched with the middle finger. The number of fingers detected by the finger number detection unit 12 changes from 1 to 2. In this case, the lower content “volume” assigned with 2 fingers may be operated. At this time, since the finger that last detected contact is the middle finger, the volume is operated with the middle finger. In such a configuration, when the number of contact points with a finger increases, another content can be operated with the finger. Therefore, since it is possible to easily perform the operation by a series of contact operations, for example, when it is desired to reproduce the audio and change the volume immediately thereafter, the convenience of the operator can be further improved.

(Embodiment 2)
The second embodiment of the present invention will be described below. FIG. 12 is a schematic diagram showing the overall configuration of the user interface device 1b according to the second embodiment of the present invention. The same components as those in Embodiment 1 are denoted by the same reference numerals. The user interface device 1b according to the second embodiment is different from the configuration according to the first embodiment in that the operation unit 11 is a dial switch 11b. The user interface device 1b according to Embodiment 2 includes a dial switch 11b, a display unit 13, and an exterior 17. The dial switch 11 b is provided on the guide bar 111, and the guide bar 111 and the dial switch 11 b move up and down with respect to the display unit 13 by operating the knob 112. When the guide bar 111 and the dial switch 11b move, the display content of the display unit 13 is switched according to the movement. The display unit 13 is provided with a touch panel.

  FIG. 13 is a functional block diagram of the user interface device 1b according to the second embodiment. The same functional blocks as those of the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  The finger number detection unit 12b of the user interface device 1b according to the second embodiment detects the number of fingers of the operator who has touched the dial switch 11b. Unlike the first embodiment, the finger number detection unit 12b does not have to detect the order of the contact position of the operator's finger that has touched the dial switch 11b.

  In addition, the operation control unit 151b enables the content displayed on the display unit 13 to be operated by the dial switch 11b. Specifically, the operation control unit 151b enables the content to be operated based on the rotation operation of the dial switch 11b.

  14A to 14D are a perspective view showing the dial switch 11b from the front side, a perspective view showing from the back side, a top view, a rear view, and a side view, respectively. The dial switch 11b is cylindrical and has a plurality of conductive members 113a to 113e, a plurality of insulators 114a to 114e provided between the conductive members, and a conductive material provided on the back side of the conductive members 113a to 113e. 115a-e.

  As shown in FIG. 14, the conductive members 113a to 113e are members obtained by dividing a cylindrical dial switch into five equal parts with respect to the central axis. The conductive members 113a to 113e are, for example, a metal or a plated material. The insulators 114a to 114e are, for example, rubber. The conductive materials 115a to 115e are hemispherical conductive materials, for example, conductive rubber. The tip portions of the conductive materials 115 a to 115 e are in contact with the touch panel of the display unit 13. The conductive materials 115a to 115e are electrically connected to the conductive members 113a to 113e, respectively. When the operator's finger is not in contact with the conductive members 113a to 113e, the touch panel of the display unit 13 does not detect contact. On the other hand, when the operator's finger comes into contact with any one of the conductive members 113a to 113e, the conductive material on the back side of the conductive members 113a to 113e with which the finger is in contact is conducted, and the contact of the finger is detected. As shown in FIG. 14, the insulators 114a to 114e protrude in the circumferential direction. By operating the insulators 114a to 114e so that the finger is caught, the operator can operate the dial switch 11b with one finger.

  FIG. 15 is a diagram showing the location of the conductive member that comes into contact when the operator operates the dial switch 11b. FIGS. 15A to 15E show examples of places where the dial switch 11b is touched when operated with 1 to 5 fingers, respectively. Based on the correspondence relationship between the number of fingers operated in this way and the number of conductive members in contact with each other, the finger number detection unit 12 according to the second embodiment detects the number of fingers of the operator who touched the operation unit 11. To do. The finger number detection unit 12 according to the second embodiment detects the number of fingers of the operator who has touched the operation unit 11 using the conductive members 113a to 113e, the conductive materials 115a to 115e, and the touch panel. Similar to the first embodiment, the display unit 13 displays the content of the device assigned to the number of fingers detected by the finger number detection unit 12. Similarly to the first embodiment, the operation control unit 151 enables the content displayed on the display unit 13 to be operated based on the operation of the user operation unit 11b (dial switch 11b).

  For example, first, the operator touches the dial switch 11b with only the index finger. The finger number detection unit 12b detects the contact of the index finger, and detects the number of fingers (here, 1) detected when a predetermined time has elapsed since the contact was detected (for example, 2 seconds after the contact was detected). judge. Then, the control unit 15 selects the content “audio” in which the number of fingers is associated with 1. The display unit 13 displays the content assigned with 1 finger. Preferably, the display unit 13 displays a correspondence table between the number of fingers and the upper content shown in FIG. 5C, and highlights the selected content. Subsequently, the operator touches dial switch 11b with the index finger and thumb. The finger number detection unit 12b detects the number of fingers (in this case, 2) of the operator who has touched the dial switch 11b. Then, the control unit 15 selects the lower content “volume” assigned to the number of fingers of 2. The display unit 13 displays the content “volume” assigned to the number of fingers of 2. Preferably, the display unit 13 displays a correspondence table between the number of fingers and the lower content shown in FIG. 7B, and highlights the selected lower content. The operation control unit 151 enables the content displayed on the display unit 13 to be operated based on the user's operation of the dial switch 11b. Specifically, the operation control unit 151 enables the content displayed on the display unit 13 to be operated by rotating the dial switch 11b. For example, when the dial switch 11b is rotated clockwise, the volume is increased. On the contrary, when the dial switch 11b is rotated counterclockwise, the volume is decreased. Preferably, the display unit 13 displays that the volume increases when the dial switch 11b is rotated clockwise. Similarly, the display unit 13 preferably displays that the volume is reduced when the dial switch 11b is rotated clockwise.

  As described above, according to the user interface device 1b according to the second embodiment, since the content is selected according to the number of fingers detected by the finger number detection unit 12, the operability can be further improved.

  In the second embodiment, there are five conductive members, five insulators, and five conductive materials, and one to five fingers are detected. However, the present invention is not limited to this. For example, there may be four conductive members, four insulators, and four conductive materials, and one to four fingers may be detected.

  In the second embodiment, the control unit 15 selects the high-order content assigned to the number of fingers that are in contact with the dial switch 11b when a predetermined time has elapsed. However, the present invention is not limited to this. . For example, when the content selection operation is detected, the control unit 15 may select a higher-level content assigned to the number of fingers detected when the content selection operation is detected. The content selection operation may be a rotation operation of the dial switch 11b, for example.

  Although the present invention has been described based on the drawings and examples, it should be noted that those skilled in the art can easily make various modifications and corrections based on the present disclosure. Therefore, it should be noted that these variations and modifications are included in the scope of the present invention. For example, the functions included in each means, each step, etc. can be rearranged so that there is no logical contradiction, and a plurality of means, steps, etc. can be combined or divided into one. .

1, 1b User interface device 11 Operation unit (touch panel)
11b Operation unit (dial switch)
12, 12b Finger number detection unit 13 Display unit 14 Storage unit 15 Control unit 16 Palm rest 17 Exterior 111 Guide bar 151, 151b Operation control unit 113a to e Conductive member 114a to e Insulator 115a to e Conductive material

Claims (6)

An operation unit for operating the device;
A finger number detection unit for detecting the number of fingers of the operator who has touched the operation unit;
A display unit for displaying the content of the device assigned to the number of fingers detected by the finger number detection unit;
An operation control unit that enables operation of content displayed on the display unit;
A user interface device. The operation unit is a touch panel,
The finger number detection unit detects the order of the contact position of the operator's finger that has touched the touch panel,
The user interface device according to claim 1, wherein the operation control unit enables the content displayed on the display unit to be operated by a finger that finally touched the touch panel. The operation unit is a dial switch including a plurality of conductive members,
The finger number detection unit detects the number of fingers of an operator who has contacted the plurality of conductive members,
The user interface device according to claim 1, wherein the operation control unit enables operation of content displayed on the display unit by the dial switch. The content of the device is composed of a plurality of upper contents and a plurality of lower contents respectively associated with the upper contents, and a predetermined time after detecting the touch of at least one finger by the finger number detection unit The top content assigned to the number of fingers detected at the time of passage is selected,
The display unit displays content assigned to the number of fingers detected after the upper content is selected by the finger number detection unit among a plurality of lower content associated with the selected upper content. The user interface device according to any one of claims 1 to 3, wherein the user interface device is displayed. When a content selection operation is detected before the predetermined time elapses, a higher-level content assigned to the number of fingers detected when the content selection operation is detected is selected,
The display unit includes, among a plurality of lower-level contents associated with the selected upper-level content, a lower level assigned to the number of fingers detected after the content selection operation is detected by the finger number detection unit. The user interface device according to claim 4, wherein content is displayed.   6. The user interface device according to claim 4, wherein when the number of fingers detected by the finger number detection unit is 0, the higher-order content is reselected.

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