Electronic Stamp Device

Abstract

To provide an electronic stamp device capable of selecting an image to be displayed at the time of stamping from among a plurality of types while having a simple configuration.SOLUTION: An electronic stamp device 10 includes: an electronic stamp 20; a display unit 410 that displays an image when stamping is performed, the image being a part where the stamping is performed by the electronic stamp 20; and a control unit 450 that controls operations of the display unit 410. The control unit 450 includes: a determination unit 452 that determines an orientation of the electronic stamp 20 subjected to the stamping; a selection unit 453 that selects an image to be displayed on the display unit 410 from among a plurality of candidates according to the orientation determined by the determination unit 452; and a processing unit 454 that performs processing of displaying the image selected by the selection unit 453 on the display unit 410.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an electronic stamp device. [Background technology]

[0002] In recent years, electronic stamp devices have been increasingly used as a means for presenting coupons, electronic tickets, etc. When an electronic stamp is stamped on the screen of a mobile communication terminal or the like, the electronic stamp device displays an image or the like on the screen indicating that the stamp has been stamped. Electronic stamp devices are not only used for presenting coupons, but are also expected to be used in a wide range of fields, such as toys, in the future.

[0003] As described in Patent Document 1 below, an electronic stamp has multiple protrusions made of a conductive material, and the protrusions come into contact with a screen when stamping. The screen on which the electronic stamp is stamped is, for example, a capacitive touch panel. With this configuration, it is possible to detect stamping on the screen and display an image or the like on the screen. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2017-182381 Summary of the Invention [Problem to be solved by the invention]

[0005] Depending on the application of the electronic stamp device, it may be possible to prepare multiple types of electronic stamps in advance and display different images on the screen when stamping each stamp. However, if multiple electronic stamps are prepared, the cost of parts increases and the storage and management of the electronic stamps becomes complicated.

[0006] For example, it is possible to provide a changeover switch on the electronic stamp or display device and change the image displayed when the stamp is stamped depending on the state of the switch. However, in this case, the structure of the electronic stamp or the like becomes too complicated, which again increases the cost of parts.

[0007] SUMMARY OF THE INVENTION An object of the present invention is to provide an electronic stamp device that has a simple configuration and allows a user to select from a plurality of types of images to be displayed when stamping. [Means for solving the problem]

[0008] The electronic stamp device according to the present invention comprises an electronic stamp, a display unit where the stamp is applied and displays an image when the stamp is applied, and a control unit that controls the operation of the display unit. The control unit has a determination unit that determines the orientation of the applied electronic stamp, a selection unit that selects an image to be displayed on the display unit from among a plurality of candidates according to the orientation determined by the determination unit, and a processing unit that performs processing to display the image selected by the selection unit on the display unit.

[0009] With this configuration of the electronic stamp device, the user can change the image displayed when stamping simply by changing the orientation of the electronic stamp. Since there is no need to provide a mechanism such as a selector switch to select an image from multiple candidates, the structure of the electronic stamp device does not become complicated. [Effects of the Invention]

[0010] According to the present invention, an electronic stamp device is provided which has a simple configuration and yet allows the user to select from a plurality of types of images to be displayed when stamping. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is a diagram showing the overall configuration of an electronic stamp device. [Figure 2] FIG. 2 is a perspective view showing the appearance of the electronic stamp. [Figure 3] FIG. 3 is a diagram of the electronic stamp as seen from the bottom side. [Figure 4] FIG. 4 is a cross-sectional view showing the internal configuration of the electronic stamp. [Figure 5] FIG. 5 is a diagram showing the configuration of a control unit provided in the electronic stamp device. [Figure 6] FIG. 6 is a flowchart showing the flow of processing executed by the control unit. [Figure 7] FIG. 7 is a diagram for explaining the stampable area of ​​the display unit. [Figure 8] FIG. 8 is a diagram for explaining the angle of the electronic stamp when it is affixed. [Figure 9] FIG. 9 is a diagram showing the correspondence between the angle of the electronic stamp and the image to be displayed on the display unit. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, the present embodiment will be described with reference to the accompanying drawings. To facilitate understanding of the description, the same components in the drawings will be denoted by the same reference numerals as much as possible, and duplicated descriptions will be omitted.

[0013] The electronic stamp device 10 according to this embodiment is a toy for children, and includes an electronic stamp 20 and a display device 40. The configuration and functions of the electronic stamp device 10 described below can also be applied to uses other than toys. For example, an example of a use of such an electronic stamp device is to stamp "used" on a coupon on a mobile terminal presented by a customer in a store or the like.

[0014] The electronic stamp 20 is used as a so-called "stamp" and is held by a user when stamping, and a part of it is pressed (i.e., stamped) against a display unit 410 described below. The specific configuration of the electronic stamp 20 will be described later.

[0015] The display device 40 is a thin computer device also known as a "tablet terminal." A display unit 410 is provided on the top surface of the display device 40. The display unit 410 is a capacitive touch panel screen, and is a rectangular screen as shown in FIG. 1. When a conductor with a large capacitance, such as a human body, touches the display unit 410, the display device 40 detects this and can determine the position where the conductor touched, or display a specific image at that position on the display unit 410. The display unit 410 is the part where an imprint is made by the electronic stamp 20, and is the part that displays an image when the imprint is made.

[0016] A control unit 450 (not shown in FIG. 1, see FIG. 5) is provided inside the display device 40 to control the overall operation including the display unit 410. When a user holds the electronic stamp 20 and presses its bottom surface against the display unit 410, the control unit 450 detects this and causes the image 50 to be displayed in the same position on the display unit 410. The configuration of the control unit 450 and the specific contents of the processing executed by the control unit 450 will be described later.

[0017] The specific configuration of the electronic stamp 20 will be described with reference to Fig. 2 and other figures. Fig. 2 is a perspective view of the electronic stamp 20 as viewed from above. Fig. 3 is a view of the electronic stamp 20 as viewed from the bottom. Fig. 4 is a cross-sectional view showing the internal configuration of the electronic stamp 20, partially illustrating the cross section IV-IV in Fig. 3.

[0018] As shown in FIGS. 2 and 3, the electronic stamp 20 includes a case 200, a conductive member 300, and a bottom plate 220.

[0019] The case 200 is a component that forms the outer shape of the electronic stamp 20 and is a container that houses the conductive component 300 inside. The case 200 is made of an insulating component such as resin. The case 200 has a substantially rectangular parallelepiped shape. As shown in FIG. 3 , an opening is formed in the bottom portion of the case 200, and the opening is covered by a bottom plate 220, which will be described later.

[0020] 2, rectangular openings 215 are formed on each of the four side surfaces of the case 200. As a result, the surface of the conductive member 300 housed inside is exposed to the outside through each opening 215. When a user holds the electronic stamp 20 to stamp, the user's finger comes into contact with the surface of the conductive member 300 through one of the openings 215.

[0021] The top surface 210 of the case 200 is the surface that will be on the upper side when a seal is applied, i.e., the surface that will be located opposite the display unit 410. Four designs 211, 212, 213, and 214 are drawn on the top surface 210 in a circular pattern. In this embodiment, the design 211 is a "heart," the design 212 is a "clover," the design 213 is a "diamond," and the design 214 is a "spade." These are merely examples, and the designs drawn on the top surface 210 may be different from these. As will be explained later, these designs 211 and the like correspond to images that will be displayed on the display unit 410 when a seal is applied.

[0022] The conductive member 300 is a conductive member, such as a conductive resin. The conductive member 300 is housed inside the case 200 and the bottom plate 220, and as described above, a portion of the conductive member 300 is exposed to the outside through the opening 215.

[0023] Three protrusions 311 are formed on the conductive member 300, protruding toward the bottom plate 220 (i.e., downward). Each of the protrusions 311 is cylindrical in this embodiment, but may have other shapes. When viewed from the bottom side as shown in FIG. 3, the protrusions 311 are provided near three of the four corners of the rectangular case 200, and are not provided near the remaining corner. Each of the protrusions 311 is exposed to the outside through an opening 223 formed in the bottom plate 220, which will be described next.

[0024] Bottom plate 220 is a plate-like member disposed so as to cover conductive member 300 from below. Similar to case 200, bottom plate 220 is formed of an insulating member such as resin. Bottom plate 220 has openings 223 as described above. Openings 223 are formed at positions corresponding to protrusions 311. When viewed from the bottom side as in FIG. 3 , each opening 223 is formed in an area that includes the entire protrusion 311 located directly below it.

[0025] The bottom plate 220 has a flat portion 221 and an inclined portion 222. The flat portion 221 occupies the majority of the bottom plate 220 and is parallel to the top surface 210 of the case 200. The flat portion 221 is the portion that faces the display unit 410 when the electronic stamp 20 is imprinted, i.e., the portion that is generally parallel to the display unit 410, and corresponds to the "flat portion" in this embodiment.

[0026] The inclined portions 222 are portions that are inclined with respect to the top surface 210 of the case 200. The inclined portions 222 are provided near each of the four corners of the bottom plate 220. The openings 223 described above are formed in three of the four inclined portions 222. As shown in FIG. 4, the inclined portions 222 are inclined so as to approach the inside (i.e., the top surface 210 side) as they go toward the distal end.

[0027] 4(A) shows the state of the bottom plate 220 and the like before stamping, i.e., when the electronic stamp 20 has not yet come into contact with the display unit 410. One end of a rod-shaped support post 224 extending inward is connected to the center of the flat plate portion 221. The support post 224 is inserted into a through-hole 312 formed in the conductive member 300 and is held in a state in which it can move up and down in FIG. 4. However, the end of the support post 224 on the top surface 210 side is prevented from coming off by a mechanism (not shown), so the bottom plate 220 will not come off the electronic stamp 20.

[0028] In FIG. 4, the surface of the conductive member 300 that faces the flat plate portion 221 is designated by the reference numeral "310." This surface will also be referred to as "surface 310" below. The surface 310 is parallel to the upper surface 210 and the flat plate portion 221, and is the surface on which the respective protrusions 311 are provided. When the electronic stamp 20 is imprinted, the surface 310 faces the display unit 410 via the flat plate portion 221. The surface 310, like the flat plate portion 221, corresponds to the "flat portion" in this embodiment.

[0029] A support surface 201, which is a surface parallel to the top surface 210, is formed on the inside of the case 200, and the tip of the inclined portion 222 is in contact with the support surface 201. In the state shown in FIG. 4(A), the tip of the protrusion 311 is located inside the flat portion 221. Therefore, when a stamp is made with the electronic stamp 20, the flat portion 221 comes into contact with the display unit 410 first.

[0030] After the flat plate portion 221 comes into contact with the display unit 410, if the user further presses the electronic stamp 20 toward the display unit 410 (i.e., downward), the portion of the bottom plate 220 near the inclined portion 222 will elastically deform, and the flat plate portion 221 will move closer to the conductive member 300. Eventually, as shown in Fig. 4(B), the outer surface of the flat plate portion 221 and the tip surfaces of the protrusions 311 will be positioned on the same plane. Although the display unit 410 is not shown in the figure, in the state of Fig. 4(B), the tip surfaces of the protrusions 311 are in contact with the display unit 410.

[0031] At this time, a part of the conductive member 300 is in contact with the user's hand, and another part, the protrusion 311, is in contact with the display unit 410. Therefore, the control unit 450 can detect that the conductive member 300 has come into contact with the display unit 410, i.e., that a stamp has been made.

[0032] When the stamping is completed and the electronic stamp 20 is removed from the display unit 410, the bottom plate 220 returns to the state shown in FIG. 4(A).

[0033] The configuration of the control unit 450 will be described with reference to Fig. 5. As mentioned above, the control unit 450 is a part that controls the operation of the entire display device 40, including the display unit 410. The control unit 450 is configured as a computer system that includes a CPU, ROM, RAM, etc. (not shown). The control unit 450 has a seal detection unit 451, a determination unit 452, a selection unit 453, a processing unit 454, and a storage unit 455 as elements that represent its functions.

[0034] The imprint detection unit 451 is a part that performs processing to detect the imprint of the electronic stamp 20. When the electronic stamp 20 is imprinted, the imprint detection unit 451 detects this and also detects the position where the imprint is made on the display unit 410. The "position where the imprint is made" refers to the respective positions of the three protrusions 311 that come into contact with the display unit 410. Note that the detection method performed by the imprint detection unit 451 can be a conventional detection method for a touch panel screen, and therefore a description of the specific method will be omitted.

[0035] Hereinafter, the center of the upper surface 210 will also be referred to as "center C1" (see FIG. 2). When the electronic stamp 20 is rotated around an axis that passes through the center C1 and is perpendicular to the top surface 210, the orientation of the electronic stamp 20 changes accordingly. When the "orientation" of the electronic stamp 20 is defined in this way, the determination unit 452 is a part that performs processing to determine the orientation of the affixed electronic stamp 20.

[0036] As explained with reference to Fig. 3, in this embodiment, protrusions 311 are provided near three of the four corners of the rectangular case 200. Therefore, if the positions of the three protrusions 311 that come into contact with the display unit 410 when a stamp is made are known, the orientation of the electronic stamp 20 in that state will be uniquely determined. Therefore, the determination unit 452 is configured to determine the orientation of the electronic stamp 20 based on the positions of the protrusions 311 detected by the stamp detection unit 451.

[0037] Note that the number and arrangement of the protrusions 311 may be different from those in this embodiment, as long as the correspondence between the position of each protrusion 311 when imprinting is uniquely determined and the orientation of the electronic stamp 20. Such an arrangement of the protrusions 311 can be referred to as an "arrangement with one-fold symmetry" or an "arrangement with one-fold rotational symmetry" with respect to an axis that passes through the center C1 and is perpendicular to the top surface 210.

[0038] The selection unit 453 is a part that performs processing to select an image to be displayed on the display unit 410 in accordance with the "orientation" of the electronic stamp 20 determined by the determination unit 452. The "image" here refers to an image that is displayed on the display unit 410 at the position where the stamp is stamped when the stamp is made. In this embodiment, four candidates are prepared in advance as images to be displayed on the display unit 410, and only one image selected from the candidates by the selection unit 453 is displayed on the display unit 410.

[0039] The heart image 50 shown in FIG. 1 is one of these candidates. In this embodiment, four images, a heart, a clover, a diamond, and a spade, are prepared in advance as the candidates. These four candidates correspond to the four designs 211, 212, 213, and 214 depicted on the top surface 210. In other words, designs corresponding to the image candidates displayed on the display unit 410 are depicted on the top surface 210 in a circular arrangement. The correspondence between the orientation of the electronic stamp 20 at the time of stamping and the image selected by the selection unit 453 will be described later.

[0040] The processing unit 454 is a part that performs processing to display the image selected by the selection unit 453 on the display unit 410. The processing unit 454 displays the image selected by the selection unit 453 at the position on the display unit 410 where the stamp was made. The image continues to be displayed on the display unit 410 even after the electronic stamp 20 is moved away from the display unit 410.

[0041] Storage unit 455 is a non-volatile storage device, such as an SSD, provided in control unit 450. Storage unit 455 stores programs and data necessary for processing performed by control unit 450. The data stored in storage unit 455 includes, for example, data of images to be displayed on display unit 410.

[0042] The specific content of the processing executed by the control unit 450 will be described with reference to the flowchart in Fig. 6. The series of processing shown in Fig. 6 is started immediately after the electronic stamp 20 is affixed.

[0043] The first step S01 of this process is to obtain the center position of the imprint. The "center position of the imprint" refers to the position of a point on the display unit 410 that is directly below the center C1 of the electronic stamp 20 when the display unit 410 is viewed along its normal direction. The center position of the imprint can be obtained based on the positions of the protrusions 311 when the imprint is made.

[0044] In step S02 following step S01, it is determined whether the center position of the stamp is within a predetermined range of display unit 410. The "predetermined range" is the range enclosed by the dotted line marked with the letter "D" in Figure 7. Hereinafter, this range will also be referred to as "range D."

[0045] Here, the long side along the horizontal direction of display unit 410 is side 411, and the short side along the vertical direction of display unit 410 is side 412. The distance from range D to side 411 is T, and the distance from range D to side 412 is also T.

[0046] 7, if the length of one side of the image 50 displayed on the display unit 410 when stamping is L, the following formula (1) holds between L and T. In other words, T and range D are set so that the following formula (1) holds. T=L / 2 1 / 2 ···(1)

[0047] The above T is the length from the center C2 of the image 50 to a corner, that is, the length equal to x shown in FIG.

[0048] In this embodiment, when the electronic stamp 20 is stamped, the image 50 is displayed at a position where the center C2 of the image 50 is directly below the center C1 of the electronic stamp 20. In other words, the center position of the stamp and the center C2 of the image 50 are aligned.

[0049] In step S02 of FIG. 6, if the center position of the stamp is outside the range D, the process of displaying an image on the display unit 410 is not performed, and the series of processes shown in FIG. 6 is terminated.

[0050] The reason for this will be explained. In this embodiment, the display unit 410 is configured to display the image 50 at an angle in accordance with the orientation of the electronic stamp 20 at the time of affixing the stamp. Therefore, depending on the orientation of the electronic stamp 20, the image 50 may be displayed at an angle so that the diagonal line corresponding to x in FIG. 7 is parallel to the side 411. In this case, if the center position of the stamp is outside the range D, part of the image 50 will extend outside the display unit 410, and the entire image 50 cannot be displayed.

[0051] Therefore, in this embodiment, if the position of the electronic stamp 20 when it is stamped (i.e., the center position of the stamp) is outside the range D of the display unit 410, the processing unit 454 does not perform processing to display the image 50 on the display unit 410. This makes it possible to display the entire image 50 in the same position as the stamped location, regardless of the orientation of the electronic stamp 20 when it is stamped.

[0052] If there is no problem even if only a part of the image 50 is displayed, the process of step S02 in FIG. 6 does not need to be performed.

[0053] In step S02, if the center position of the stamp is within range D, the process proceeds to step S03. In step S03, the determination unit 452 performs a process of calculating the angle of the electronic stamp 20 when the stamp was made.

[0054] 8 shows the electronic stamp 20 and the display unit 410 when the stamp has been imprinted. DR1 shown in the figure represents a virtual direction that is parallel to the planar portion (flat plate portion 221 or surface 310) of the electronic stamp 20 and is fixed relative to the electronic stamp 20. Here, the direction from the center C1 perpendicular to the side near the design 211 is defined as DR1. Since DR1 is a virtual direction fixed relative to the electronic stamp 20, it changes depending on the orientation of the electronic stamp 20. DR1 corresponds to the "first direction" in this embodiment.

[0055] 8 represents a virtual direction that is parallel to the top surface of the display unit 410 and is fixed relative to the display unit 410. Here, the direction that is parallel to the side 411 and runs from the left side to the right side in FIG. 8 is defined as the DR2. Because DR2 is a virtual direction that is fixed relative to the display unit 410, it does not change depending on the orientation of the electronic stamp 20. DR2 corresponds to the "second direction" in this embodiment.

[0056] In step S03 of Fig. 6, the angle θ between DR1 and DR2 is calculated and acquired as the "angle of the electronic stamp 20." This process is performed by the determination unit 452. The angle θ can be calculated based on the positions of the protrusions 311 that contacted the display unit 410 when the stamp was imprinted.

[0057] The determining unit 452 determines the orientation of the electronic stamp 20 based on the above-described angle θ. In this embodiment, the angle θ is used as an index that indicates the orientation of the electronic stamp 20 itself.

[0058] In step S04 following step S03, the selection unit 453 performs a process of selecting an image to be displayed on the display unit 410. Fig. 9 shows a map indicating the correspondence between the angle θ calculated in step S03 and the image to be displayed. The map is created in advance and stored in the storage unit 455. The selection unit 453 selects an image by referring to the map.

[0059] As shown in Figure 9, if the angle θ is greater than or equal to -45 degrees and less than 45 degrees, an image of a spade is selected. If the angle θ is greater than or equal to 45 degrees and less than 135 degrees, an image of a heart is selected. If the angle θ is greater than or equal to 135 degrees and less than 225 degrees, an image of a clover is selected. If the angle θ is greater than or equal to 225 degrees and less than 315 degrees, an image of a diamond is selected.

[0060] When the angle θ is equal to or greater than -45 degrees and less than 45 degrees, the spade symbol 214 is located at the farthest position from the user's perspective. In other words, the spade image selected at this time is the image corresponding to the symbol 214 located at the farthest position from the user's perspective. The same applies when the angle θ is other values. In other words, the heart image selected when the angle θ is equal to or greater than 45 degrees and less than 135 degrees is the image corresponding to the symbol 211 located at the farthest position from the user's perspective. When the angle θ is equal to or greater than 135 degrees and less than 225 degrees, the clover image selected is the image corresponding to the symbol 212 located at the farthest position from the user's perspective. When the angle θ is equal to or greater than 225 degrees and less than 315 degrees, the diamond image selected is the image corresponding to the symbol 213 located at the farthest position from the user's perspective.

[0061] In this way, the selection unit 453 of this embodiment is configured to select, when a stamp is made, the image to be displayed on the display unit 410, which corresponds to the pattern 211, etc., which is located at the farthest back from the user's perspective.

[0062] After an image is selected in step S04 of FIG. 6, the process proceeds to step S05. In step S05, the processing unit 454 performs processing to display the image selected in step S04 on the display unit 410. As described above, the position at which the image is displayed is the position at which the seal was imprinted. The image is also displayed with an appropriate tilt according to the orientation of the electronic stamp 20 at the time of imprinting. For example, if the angle θ is 30 degrees, the image of a spade corresponding to the design 214 is displayed with an inclination of 30 degrees to the left. If the angle θ is 60 degrees, the image of a heart corresponding to the design 211 is displayed with an inclination of 30 degrees to the right.

[0063] As described above, with the electronic stamp device 10 according to this embodiment, the user can switch the image displayed when stamping simply by changing the orientation of the electronic stamp 20. Since there is no need to provide a mechanism such as a selector switch to allow the user to select an image from multiple candidates, the structure of the electronic stamp device 10 does not become complicated.

[0064] In this embodiment, four candidate images are prepared in advance for display on the display unit 410, and four corresponding designs 211, etc. are drawn on the top surface 210. The number of candidate images displayed on the display unit 410 may be three or less, or may be five or more. In either case, the same number of designs corresponding to the candidate images are drawn on the top surface 210. In this case, the shape of the case 200 when viewed from above (i.e., the shape of the top surface 210) is preferably a polygon corresponding to the number of designs. For example, if there are five designs, the top surface 210 may be a pentagon. In this case, the image displayed when stamping may be changed every time the angle θ changes by 72 degrees (=360 degrees / 5). The same applies to cases where the number of designs is other than five. In either case, the design drawn on the top surface 210 may correspond to the image, and need not be the same as the image.

[0065] Other advantages will now be described. As explained with reference to Fig. 4, when imprinting is performed on the electronic stamp 20, the flat plate portion 221 comes into contact with the display unit before the protrusion 311. The flat plate portion 221 corresponds to the "contact portion" in this embodiment.

[0066] When stamping, the inclined portion 222 functions as a leaf spring, and thus the flat portion 221 is biased toward the display unit 410. The user stamps while applying force against the elastic force of the inclined portion 222, causing the protrusion 311 to contact the display unit 410. The inclined portion 222 corresponds to the "biasing portion" in this embodiment. In this embodiment, the flat portion 221, which is the contact portion, and the inclined portion 222, which is the biasing portion, are integrated with each other. The "biasing portion" may be a leaf spring as in this embodiment, but may also be other elastic members (for example, a spiral spring, a member that uses air pressure, an iron spring, etc.).

[0067] In this configuration, if the user simply places the electronic stamp 20 on the display unit 410, the protrusion 311 does not come into contact with the display unit 410, so no stamping occurs and no image is displayed on the display unit 410. This makes it possible to prevent stamping against the user's intention.

[0068] The present embodiment has been described above with reference to specific examples. However, the present disclosure is not limited to these specific examples. Design modifications to these specific examples made by a person skilled in the art as appropriate are also included within the scope of the present disclosure as long as they comprise the features of the present disclosure. The elements of the above-described specific examples, as well as their arrangement, conditions, shape, etc., are not limited to those exemplified and can be modified as appropriate. The elements of the above-described specific examples can be combined in various ways as appropriate, as long as no technical contradictions arise. [Explanation of symbols]

[0069] 10: Electronic stamp device 20: Electronic stamp 410: Display section 450: Control unit 452: Judgment section 453: Selection Department 454: Processing section

Claims

1. Electronic stamps and a display unit that displays an image when the electronic stamp is stamped; a control unit that controls the operation of the display unit, The control unit a determination unit that determines the orientation of the affixed electronic stamp; a selection unit that selects the image to be displayed on the display unit from a plurality of candidates in accordance with the orientation determined by the determination unit; a processing unit that performs processing to display the image selected by the selection unit on the display unit, the electronic stamp further has a flat surface that faces the display unit when stamped; a virtual direction that is parallel to the planar portion and fixed with respect to the electronic stamp is defined as a first direction; When a virtual direction parallel to the display unit and fixed to the display unit is defined as a second direction, The determination unit An electronic stamp device that, when a stamp is made, determines the orientation of the electronic stamp based on the angle between the first direction and the second direction when viewed from a direction perpendicular to the display unit.

2. The electronic stamp comprises: The device further includes a conductive member that comes into contact with a user's hand when the stamp is made, The conductive member includes:

2. The electronic stamp device according to claim 1, further comprising a plurality of protrusions that come into contact with the display unit when the stamp is made.

3. The determination unit 3. The electronic stamp device according to claim 2, wherein the orientation of the electronic stamp is determined based on the positions of the protrusions that come into contact with the display unit when the stamp is applied.

4. An electronic stamp; a display unit that displays an image when the electronic stamp is stamped; a control unit that controls the operation of the display unit, The control unit a determination unit that determines the orientation of the affixed electronic stamp; a selection unit that selects the image to be displayed on the display unit from a plurality of candidates in accordance with the orientation determined by the determination unit; a processing unit that performs processing to display the image selected by the selection unit on the display unit, The electronic stamp comprises: The device further includes a conductive member that comes into contact with a user's hand when the stamp is made, The conductive member includes: a plurality of protrusions are formed on the display unit when the seal is stamped, The determination unit When the stamp is pressed, the orientation of the electronic stamp is determined based on the positions of the protrusions that come into contact with the display unit; the electronic stamp further has a flat surface that faces the display unit when stamped; a virtual direction that is parallel to the planar portion and fixed with respect to the electronic stamp is defined as a first direction; When a virtual direction parallel to the display unit and fixed to the display unit is defined as a second direction, The determination unit An electronic stamp device that calculates an angle between the first direction and the second direction based on the position of each of the protrusions that contact the display unit when a stamp is made, and determines the orientation of the electronic stamp based on the angle.

5. An electronic stamp; a display unit that displays an image when the electronic stamp is stamped; a control unit that controls the operation of the display unit, The control unit a determination unit that determines the orientation of the affixed electronic stamp; a selection unit that selects the image to be displayed on the display unit from a plurality of candidates in accordance with the orientation determined by the determination unit; a processing unit that performs processing to display the image selected by the selection unit on the display unit, In the electronic stamp device, designs corresponding to the image candidates are drawn on the surface of the electronic stamp that will be on the upper side when it is stamped.

6. The plurality of patterns are drawn to be arranged in a circular shape, The selection unit 6. The electronic stamp device according to claim 5, wherein when a stamp is made, an image corresponding to the design located at the farthest rear side as seen from the user is selected as the image to be displayed on the display unit.

7. An electronic stamp; a display unit that displays an image when the electronic stamp is stamped; a control unit that controls the operation of the display unit, The control unit a determination unit that determines the orientation of the affixed electronic stamp; a selection unit that selects the image to be displayed on the display unit from a plurality of candidates in accordance with the orientation determined by the determination unit; a processing unit that performs processing to display the image selected by the selection unit on the display unit, An electronic stamp device, wherein if the position of the electronic stamp when it is stamped is outside a predetermined range of the display unit, the processing unit does not perform processing to display the image on the display unit.

8. The electronic stamp comprises: a contact portion that comes into contact with the display portion before the protrusion does when the seal is applied; 4. The electronic stamp device according to claim 3, further comprising a biasing portion that biases the contact portion toward the display portion.

9. 9. The electronic stamp device according to claim 8, wherein the contact portion and the biasing portion are integral with each other.

Images