JP2011175388A - Id card, display switching method thereof and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an ID card, a display switching method thereof and a program, for effectively reducing risk of leakage of personal information by displaying or hiding the personal information, without an owner being aware of it. <P>SOLUTION: The ID card 1 includes: a display information storage part 11 storing personal information including the name of an owner; a display part 12 displaying the personal information; a satellite signal receiver 13 sequentially receiving a position-measuring signal transmitted from a position measuring satellite; a current position arithmetic means 14 calculating a current position based on the received signal; an area decision means 15 deciding whether the current position is in a preset specific area; and a display switching means 17 controlling the display of the display part 12 to change the displayed image, based on a decision result thereof. The display switching means 17 includes a function to display the personal information on the display part 12 when it is decided that the current position is in the specific area, or hide the personal information when it is decided that the current position is not in the specific area. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an ID card on which a name of a holder is displayed, and more particularly to an ID card that can switch display contents, a display switching method thereof, and a program.

  As an ID card displaying the owner's name and affiliation, an admission card, employee ID card, student ID card, name tag, etc. are known, but an ordinary ID card is printed with personal information of the owner on the surface. Therefore, there was a problem that personal information was unexpectedly leaked to a third party or misused when lost. In particular, there has been a concern that if the name of a child is known to an unspecified number of third parties from the name tag of the child, the probability that the name of the child will be abused increases.

  With respect to this problem, Patent Documents 1 and 2 disclose techniques related to an ID card that can switch display contents. Patent Document 1 discloses that in an ID card, the owner changes the display content in accordance with the TPO by detecting the vertical and horizontal orientations of the main body with a sensor and switching the display content according to the orientation of the main body. Has been. Patent Document 2 discloses that personal information is displayed only for a predetermined time after password authentication in an ID card.

  However, in the techniques disclosed in Patent Documents 1 and 2, since the display is switched in response to an operation from the owner, the owner must be actively operated to switch the display. There was a problem that the owner was burdened. Moreover, since the technique of Patent Document 1 does not switch the display unless there is an operation by the owner, there is a problem that if the owner forgets the display switching operation, the personal information remains displayed. It was.

  In view of these problems, Patent Document 3 discloses a technique related to an ID card. The related art described in Patent Document 3 is such that an ID card receives display information by communication with a communication gate and switches display. A communication gate is provided at the entrance of a facility, and the card passes through the vicinity of the communication gate. When you go out of the facility, the personal information displayed on the card is hidden.

JP 2008-217284 A JP 2009-26059 A JP 2009-70313 A

  However, in the related technology disclosed in Patent Document 3, it is possible to automatically switch the display of the ID card without making the owner aware of it, but a large-scale device such as a communication gate is provided at the place where the display is switched. Since it has to be installed in advance, there is a problem that it takes a great deal of cost and labor.

  Therefore, the present invention provides an ID card, a display switching method, and a program for solving the problems of the related technology and effectively reducing the risk of leaking the owner's personal information to a third party while reducing costs. The purpose is to do.

  In order to achieve the above object, an ID card of the present invention is an ID card comprising a display information storage unit that stores personal information including the name of the owner, and a display unit that displays the personal information. A display condition storage unit that stores position information of a specific area set in advance as a place where the presentation of the personal information is necessary, a satellite signal receiver that sequentially receives signals transmitted from positioning satellites, and a receiver that receives the information. Current position calculation means for calculating the current position of the receiver based on the received signal, area determination means for determining whether or not the current position matches the position information of the specific area, and based on the determination result Display switching means for switching and controlling the display of the display section, and the display switching means displays the personal information on the display section when the current position matches the position information of the specific area. Both wherein when the current position was not consistent with the position information of the specific area is characterized by having a function to hide the personal information.

  Further, the display switching method of the present invention is an ID card for displaying personal information including the name of the owner, sequentially receiving signals transmitted from positioning satellites, calculating the current position based on the received signals, It is determined whether or not the current position matches position information of a specific area set in advance, and the personal information is displayed when the current position matches position information of the specific area, and the current position is The personal information is hidden when it does not match the position information of the specific area.

  The display switching program of the present invention is a computer that controls the display switching operation of an ID card that displays personal information including the name of the owner on the screen, and the receiver built in the ID card receives from the positioning satellite. A current position calculation function for calculating the current position of the receiver based on the received signal, a determination function for determining whether or not the current position matches position information of a predetermined specific area, and the current position Displaying the personal information when it matches the position information of the specific area, and executing a display switching function for hiding the personal information when the current position does not match the position information of the specific area It is characterized by that.

  Since the ID card of the present invention, its display switching method, and the display switching program are configured as described above, this allows the current position to be specified by internal processing without providing a large external device such as a communication gate. Since personal information is hidden when the current position is not within a specific area, personal information can be switched off without being aware of the owner except where it is needed, and personal information can be kept at a low cost. Can effectively reduce the risk of leakage and improve the security of society as a whole.

It is a functional block diagram which shows schematic structure of the ID card of 1st Embodiment which concerns on this invention. It is a figure which shows an example of the display screen of ID card | curd of embodiment disclosed in FIG. 1, (A) is a figure which shows an example of a screen when displaying personal information, (B) does not display personal information. It is a figure which shows an example of a screen when it is set. It is a flowchart which shows operation | movement of the ID card | curd of embodiment disclosed in FIG. It is a functional block diagram which shows schematic structure of ID card of 2nd Embodiment which concerns on this invention. It is a flowchart which shows operation | movement of the ID card | curd of embodiment disclosed in FIG.

  Hereinafter, an embodiment according to the present invention will be described with reference to the drawings.

[First Embodiment]
FIG. 1 is a functional block diagram showing a schematic configuration of an ID card 1 according to the first embodiment of the present invention. The basic configuration of the ID card 1 of the first embodiment requires a display information storage unit 11 that stores personal information including the name of the owner, a display unit 12 that displays the personal information, and presentation of personal information. Display condition storage unit 16 that stores position information of a specific area set in advance as a special place, satellite signal receiver 13 that sequentially receives radio signals transmitted from positioning satellites, and receiver 13 based on the received signal Current position calculation means 14 for calculating the current position, area determination means 15 for determining whether or not the current position matches position information of a specific area set in advance, and the display unit 12 based on the determination result Display switching means 17 for switching and controlling the display, and this display switching means 17 is a function for displaying personal information on the display unit 12 when the current position matches the position information of the specific area. When, and a function to hide the personal information when the current position was not consistent with the position information of a specific area.

  The personal information of the owner includes name, face photo, affiliation information (company name, school name, telephone number of affiliation, etc.), etc. The ID card 1 of the first embodiment has an admission card and an identification card. , Employee ID cards, student ID cards, kindergarten and elementary school students can be used as name tags that can be worn on clothes with pins or clips.

  According to the ID card 1 having such a configuration, the display can be switched only by internal processing without installing a large external device such as a communication gate in advance or without receiving an operation by the owner. Therefore, personal information can be hidden from places other than necessary without making the owner aware of the cost and labor while suppressing cost and labor, and leakage of personal information can be prevented.

  Next, a schematic configuration of the ID card 1 of the first embodiment will be described in detail.

  The ID card 1 includes a display information storage unit 11 that stores personal information related to the holder, a display unit 12 that displays the personal information, and a display condition storage unit 16 that stores position information of a specific area set in advance. A satellite signal receiver 13 that sequentially receives signals from positioning satellites, a current position calculation means 14 that calculates the current position of the receiver 13 based on the received signal, and the current position matches position information of a specific area. Area determination means 15 for determining whether or not to display personal information on the display unit 12 when the current position matches the position information of the specific area, and when the position information does not match the position information of the specific area Display switching means 17 for hiding personal information, an input unit 18 for inputting an instruction from the operator, and a specific area stored in the display condition storage unit 16 based on the input of the input unit 18 And a update control unit 19 for updating the location information.

  The display information storage unit 11 stores the personal information of the owner. The personal information of the owner includes name, face photo, affiliation information (company name, school name, telephone number of affiliated organization, etc.) and the like. Further, the display information storage unit 11 may be configured to store in advance not only the personal information of the owner but also other information not related to the personal information. Information different from personal information includes, for example, an emergency contact information of the owner, a message to the finder, and the like.

  The display unit 12 has a function of displaying information stored in the information recording unit 11 in accordance with a command from the display switching unit 16. The display unit 12 may be configured to switch display contents, and is, for example, a thin display such as electronic paper, an EL display, and a liquid crystal display.

  The satellite signal receiver 13 has a function of periodically receiving a radio signal transmitted from a positioning satellite which is a positioning artificial satellite. Examples of the positioning satellite include a GPS (Global positioning system) satellite.

  The current position calculation means 14 has a function of sequentially calculating the current position coordinates of the satellite signal receiver 13 based on signals periodically received by the satellite signal receiver 13. Specifically, the estimated distance to each satellite is calculated from the transmission time and reception time of radio waves transmitted from multiple satellites, and the current position coordinates of the receiver are based on the position coordinates of each satellite and the distance to each satellite. Is calculated.

  When the current position coordinates are calculated by the current position calculator 14, the area determination unit 15 determines whether the current position coordinates are within a coordinate range that is position information of a specific area stored in the display condition storage unit 16. It has a function to determine whether or not.

  The display condition storage unit 16 stores in advance position information of a specific area. The position information of the specific area is information indicating the position in the specific area such as the facility, and is information specifying the position of the specific area in the range of each component of the coordinate system.

  The display switching unit 17 has a function of switching and controlling the display of the display unit 12 according to the determination result by the area determination unit 15. When it is determined that the current position is within the specific area, the display information storage is stored. The personal information of the owner is read from the unit 11 and displayed on the display unit 12, and when it is determined that the current position is not within the specific area, the display unit 12 is controlled to hide the personal information of the owner. To do. 2A is a diagram illustrating an example of a screen of the display unit 12 when personal information is displayed, and FIG. 2B is an example of a screen of the display unit 12 when personal information is not displayed. FIG.

  In FIG. 2A, the display screen 200 of the display unit 12 displays a company name 201 to which the owner belongs, an employee number 202, a name 203 of the owner, and a photograph 204 of the owner. In FIG. 2B, nothing is displayed on the display screen 20 of the display unit 12.

  In addition, when the personal information is not displayed, the display switching unit 17 according to the first embodiment may read information different from the personal information from the display information storage unit 11 and display the information. As information different from this personal information, for example, there is an emergency contact information of the owner, a message to the finder, and the like.

  The input unit 18 has a function of inputting information from an operator. As long as the input unit 18 is configured to input information from an operator, the input unit 18 is not limited to an input device such as a keypad. For example, the input unit 18 may be a communication device that inputs data by connecting to an external device. As the communication device, a device that performs non-contact communication using RFID (Radio Frequency Identification) technology is employed.

  The update control unit 19 has a function of rewriting the position information of a specific area stored in the display condition storage unit 16 based on information specified by the operator input to the input unit 18. This makes it possible to adapt even when the place of work of the owner changes due to a change or business trip. The update control unit 19 has a function of rewriting display information stored in the display information storage unit 11 based on information input to the input unit 18. This allows it to be used repeatedly by different holders.

  As described above, the ID card 1 of the first embodiment includes the satellite signal receiver 13 and the current position calculation means 14 that observe the current position using the satellite positioning system, and the observed current position is within a specific area. An area determination unit 15 for determining whether or not the position information is matched; a display switching unit 17 for displaying the personal information of the owner on the display unit 12 when the position information is matched; It is the structure provided with.

  Therefore, according to the ID card 1 of the first embodiment, the personal information can be displayed when the current position is within the specific area, and the personal information can be hidden when the current position is outside the specific area. The display contents are automatically switched accordingly, so the risk of personal information leaking to outsiders can be reduced, security for those with low crisis awareness, such as children, can be easily increased, and the security of society as a whole can be improved. Can be planned. Moreover, even if the ID card 1 is dropped outside the specific area, personal information is not displayed, so that it is not misused by the finder.

  Next, the operation of the ID card 1 of the first embodiment will be described. Here, the following description of the operation is an embodiment of the display switching method of the present invention.

  FIG. 3 is a flowchart showing the operation of the ID card 1 of the first embodiment. As shown in FIG. 3, in the ID card 1 of the present embodiment, first, when a specific area update command is input from the operator to the input unit 18 (Yes in step S31 in FIG. 3), the update control means 19 The position information of the specific area stored in the display condition storage unit 16 is rewritten based on the command (step S32 in FIG. 3).

  First, the satellite signal receiver 13 periodically receives a radio signal from the positioning satellite (step S33 in FIG. 3), and calculates the current position of the satellite signal receiver 13 based on the received signal. The means 14 calculates (step S34 in FIG. 3).

  Subsequently, the area determination unit 15 determines whether or not the calculated current position matches the position information of the specific area registered in the display condition storage unit 16 (step S35 in FIG. 3). The display switching means 17 reads the personal information from the display information storage section 11 and instructs the display section 12 to display the personal information. The display section 12 follows the instructions from the display switching means 17 Is displayed (step S36 in FIG. 3).

  On the other hand, when it is determined that the current position does not satisfy the position information of the specific area, the display switching unit 17 instructs the display unit 12 to hide the personal information, and the display unit 12 displays the display switching unit 17. The personal information is hidden in accordance with the instruction from (step S37 in FIG. 3). When this personal information is not displayed, information different from the personal information may be displayed.

  As described above, the ID card 1 of the first embodiment measures the current position based on the signal from the positioning satellite, determines whether or not the current position is within a preset specific area, and the current position is If it is within the specific area, the personal information of the holder stored in advance is displayed. If the current position is not within the specific area, the personal information is not displayed.

  Thereby, leakage of personal information to outsiders can be prevented, security of those with low crisis awareness such as children can be easily increased, and security of the entire society can be improved.

  Here, the above-described current position calculation means 14, area determination means 15, and display switching means 17 may be configured such that their function contents are programmed and executed by a computer.

  The display condition storage unit 16 described above may store in advance position information of two or more areas. The display information storage unit 11 stores information to be displayed for each area, and the area determination unit 15 May have a function of determining which area the current position matches, and the display switching unit 17 may be configured to display information corresponding to the area matching the current position on the display unit 12.

  For example, if the location information is set in advance for the area A in the school and the area B in the home, and the current location is in the area A (in the school), the personal name, blood type, school name, etc. of the owner Information is displayed. If it is in area B (inside the house), the current time information (clock) is displayed. If it is in any other area, the emergency contact information such as the school name and the school telephone number is displayed. For example, display contents may be switched for each of a plurality of areas. Thus, by displaying the emergency contact information outside the school, it also becomes a security measure.

  As described above, the ID card 1 of the first embodiment observes the current position using the satellite positioning system, determines whether or not the current position is within a preset specific area, and determines the current position. If personal information is displayed in the specific area and personal information is not displayed when the current position is outside the specific area, for example, if the school site is set as the specific area, When a child wearing an ID card as a name tag enters the school premises, the ID card 1 displays the content (school name, name, blood type) that proves the child's identity, and from the school premises when leaving school When you come out, switch the display to the emergency contact information (school name, phone number).

  Therefore, according to the ID card 1 of the first embodiment, the display is switched only by internal processing without installing a large external device such as a communication gate in advance and without receiving an operation by the owner. It is possible to switch personal information to non-display without restraining the cost and labor, and to prevent the personal information from leaking to an unexpected third party. Thus, it is possible to prevent unauthorized use of personal information even in the event of loss. In particular, if the ID card 1 of the first embodiment is used as a name tag for a child, the name of the child will not be known to an unspecified number of outsiders, so the probability that the child will be involved in a crime can be reduced. .

  Next, a second embodiment of the present invention will be described.

  FIG. 4 is a functional block diagram showing a schematic configuration of the ID card 4 of the second embodiment. In FIG. 4, the same reference numerals as those in FIG. 1 are given to the same components as those of the ID card 1 of the first embodiment described above.

  As shown in FIG. 4, the ID card 4 of the second embodiment is a timepiece indicating the current time instead of the satellite signal receiver 13 and the current position calculation means 14 in the ID card 1 of the first embodiment described above. This is a configuration provided with a section 41.

  The display condition storage unit 46 stores a specific time zone set as a time zone in which the owner is scheduled to be in the specific area, and the area determination unit 45 determines whether the current time is a specific time zone. And the display switching means 17 displays the personal information of the owner when the current time is determined to be in a specific time zone. It has a function of displaying on the display unit 12 and hiding personal information when it is determined that the current time is not in a specific time zone.

  For example, when a specific time zone is set to “8:30 to 17:30” and registered in the display condition storage unit 46, the display of personal information is started when the time is 8:30. When the time is 17:30, the personal information is hidden and switched to display other information.

  In addition, the display condition storage unit 46 of the second embodiment may store two or more time zones in advance, and the display information storage unit 11 stores display information for each time zone, thereby determining the area. The means 45 has a function of determining which time zone the current time matches, and the display switching means 17 is configured to display information corresponding to the time zone matching the current time on the display unit 12. Also good.

  For example, when the ID card 4 of the second embodiment is used as a name tag of a child, the display condition storage unit 46 displays “time zone A: 8: 30- 17:30 ”,“ Time zone B: 6: 00-8: 30, 17: 30-21: 00 ”as the time zone during school attendance, and“ Time zone C: “21:00 to 6:00” is stored in advance, and the display information storage unit 11 corresponds to personal information such as school name, name, blood type, and time zone B as display information corresponding to the time zone A. The school name and school contact information are stored in advance as display information, and the display switching means 17 displays personal information such as school name, name, blood type, etc. on the display unit 12 between 8:30 and 17:30. The school name is displayed between 6: 00-8: 30 and 17: 30-21: 00. Display contacts school on the display unit 12, between 21:00 6 00 time may be configured to display (image of the watch).

  According to the ID card 4 of the second embodiment, personal information is displayed only during the time zone when the owner is scheduled to be in the specific area, so that the personal information is an outsider as in the first embodiment described above. The risk of leaking to a child can be reduced, and security for those with low crisis awareness, such as children, can be easily enhanced to improve the security of society as a whole.

  Next, the operation of the ID card 4 of the second embodiment will be described.

  FIG. 5 is a flowchart showing the operation of the ID card 4 of the second embodiment. As shown in FIG. 4, in the ID card 4 of the present embodiment, when a specific area update command is input from the operator to the input unit 18 (Yes in step S51 in FIG. 5), the update control means 19 displays The position information of the specific area stored in the condition storage unit 16 is rewritten based on the command (step S52 in FIG. 5).

  First, the area determination means 45 inputs the current time indicated by the clock unit 41 (step S53 in FIG. 5), and whether or not the current time is in a specific time zone registered in advance in the display condition storage unit 46. Is determined by the area determination unit 45 (step S54 in FIG. 5), and when it is determined that the specific time zone is reached, the display switching unit 17 reads the personal information from the display information storage unit 11 and sends it to the display unit 12. The display unit 12 displays personal information according to the instruction from the display switching means 17 (step S55 in FIG. 5).

  On the other hand, when it is determined that the current time is not in a specific time zone, the display switching unit 17 instructs the display unit 12 to hide personal information, and the display unit 12 instructs the display switching unit 17 to Accordingly, the personal information is hidden (step S56 in FIG. 5). When this personal information is not displayed, information different from the personal information may be displayed.

  As described above, the ID card 4 according to the second embodiment displays the personal information of the owner when the current time enters the scheduled time zone within the specific area, and when the current time is not the specific time zone, Hide information.

  Therefore, according to the ID card 4 of the second embodiment, as in the first embodiment, the display can be switched only by internal processing without requiring a large external device such as a communication gate. The personal information can be switched off in an unnecessary place without receiving an operation by the owner while suppressing the cost and labor. Therefore, personal information can be prevented from leaking to an unexpected third party without making the owner aware of it.

  The main points of the novel technical contents in each of the above embodiments are shown in the following supplementary notes. In addition, although a part or all of each said embodiment is put together in the content described below, this invention is not necessarily limited to this.

[Supplementary Note 1] An ID card including a display information storage unit that stores personal information including the name of the holder and a display unit that displays the personal information, where the personal information needs to be presented. A display condition storage unit that stores position information of a specific area that is set in advance, a satellite signal receiver that sequentially receives signals transmitted from positioning satellites, and the receiver based on signals received by the receiver. Current position calculation means for calculating the current position, area determination means for determining whether or not the current position matches position information of the specific area, and switching control of display on the display unit based on the determination result Display switching means, wherein the display switching means displays the personal information on the display unit when the current position matches the position information of the specific area and the current position of the specific area. ID card comprising the ability to hide the personal information if it does not match the location information.
[Supplementary Note 2] In the ID card according to Supplementary Note 1, the display information storage unit stores in advance other information not related to the personal information as information to be displayed on the display unit at a place other than the specific area. The display switching means hides the personal information when the current position does not match the position information of the specific area, and displays other information unrelated to the personal information on the display unit. An ID card characterized by displaying.
[Supplementary Note 3] The ID card according to Supplementary Note 2, comprising an update control means for updating the position information of the specific area stored in the display condition storage unit based on an input from an operator. card.
[Supplementary Note 4] In the ID card according to Supplementary Note 3, in place of the satellite signal receiver and the current position calculating means, a clock unit indicating a current time is provided, and the condition storage is stored in the specific area by the owner. Information indicating a specific time zone set in advance as a time zone scheduled to be in the area, the area determination means determines whether or not the current time is in the specific time zone, from the determination result An ID card for determining whether or not a current position is within the specific area.
[Supplementary Note 5] An ID card for displaying personal information including the name of the holder, which sequentially receives signals transmitted from positioning satellites, calculates the current position based on the received signal, and sets the current position in advance. Whether the current position matches the position information of the specific area, and displays the personal information when the current position matches the position information of the specific area. A display switching method, characterized in that the personal information is hidden when they do not match.
[Supplementary Note 6] The display switching method according to Supplementary Note 5, wherein when the personal information is not displayed, other information not related to the personal information is displayed.
[Supplementary note 7] The display switching method according to supplementary note 6, wherein the position information of the specific area set in advance is updated based on an input from an operator.
[Supplementary Note 8] In the display switching method according to Supplementary Note 7, instead of receiving a signal from a positioning satellite and calculating a current position, the current time is detected and the current position matches the position information of the specific area. Instead of determining whether or not a specific time zone set as a time zone in which the owner is scheduled to be in the specific area is reached, and the current position is within the specific area based on the determination result A display switching method characterized by determining whether or not.
[Supplementary Note 9] A computer that controls the display switching operation of an ID card that displays personal information including the name of the owner on the screen is received based on a signal received from a positioning satellite by a receiver built in the ID card. A current position calculation function for calculating the current position of the machine, a determination function for determining whether or not the current position matches position information of a specific area set in advance, and the current position is position information of the specific area A display switching function that displays the personal information when they match and executes a display switching function that hides the personal information when the current position does not match the position information of the specific area. Program.
[Appendix 10] In the display switching program according to appendix 9, the display switching function is a function for displaying other information unrelated to the personal information when the personal information is hidden. A program for switching display.
[Supplementary Note 11] The display switching program according to Supplementary Note 10, wherein the computer is caused to execute an update function for updating position information of the specific area set in advance based on an input from an operator. Program.
[Supplementary Note 12] In the display switching program according to Supplementary Note 11, in place of the current position calculation function and the determination function, a clock function that indicates the current time and a time zone in which the owner is scheduled to be in the specific area A display function for causing the computer to execute a determination function for determining whether or not a specific time zone set as follows is reached and determining whether or not the current position is within a specific area from the determination result Program for switching.

  The present invention can be used as a name tag attached to clothing by an admission card, an identification card, an employee card, a student card, a kindergarten, an elementary school student, or the like.

1,4 ID card 11 Display information storage unit 12 Display unit 13 Satellite signal receiver 14 Current position calculation unit 15, 45 Area determination unit 16, 46 Display condition storage unit 17 Display switching unit 41 Clock unit 200 Display screen 201 Owner The company name of the company 202 The employee number of the holder 203 The name of the owner 204 The photograph of the owner

Claims (10)

An ID card comprising a display information storage unit for storing personal information including the name of the holder, and a display unit for displaying the personal information,
A display condition storage unit storing position information of a specific area set in advance as a place where presentation of the personal information is necessary;
A satellite signal receiver for sequentially receiving signals transmitted from positioning satellites;
Current position calculating means for calculating the current position of the receiver based on the signal received by the receiver;
Area determination means for determining whether or not the current position matches the position information of the specific area;
Display switching means for switching and controlling the display of the display unit based on the determination result,
The display switching means displays the personal information on the display unit when the current position matches the position information of the specific area, and when the current position does not match the position information of the specific area. An ID card having a function of hiding the personal information. In the ID card according to claim 1,
The display information storage unit has a function of storing in advance other information unrelated to the personal information as information to be displayed on the display unit in a place other than the specific area,
An ID card characterized in that the display switching means has a function of displaying other information unrelated to the personal information on a display unit when the personal information is not displayed. In the ID card according to claim 2,
An ID card comprising update control means for updating position information of the specific area stored in the display condition storage unit based on an input from an operator. In the ID card according to claim 3,
In place of the satellite signal receiver and the current position calculation means, comprising a clock unit indicating the current time,
The display condition storage has a function of storing information indicating a specific time zone set in advance as a time zone in which the owner is scheduled to be in the specific area, instead of the position information of the specific area,
The area determination means has a function of determining whether or not the current time is in the specific time zone, and a function of determining whether or not the current position is within the specific area from the determination result. ID card characterized by In an ID card that displays personal information including the owner's name,
Receives signals from positioning satellites sequentially, calculates the current position based on the received signals,
It is determined whether or not the current position matches the position information of a specific area set in advance,
Displaying the personal information when the current position matches the position information of the specific area;
A display switching method, wherein the personal information is not displayed when the current position does not match the position information of the specific area. In the display switching method according to claim 5,
A display switching method characterized by displaying other information not related to the personal information when the personal information is hidden. In the display switching method according to claim 6,
Instead of receiving a signal from a positioning satellite and calculating the current position and determining whether this current position matches the position information of the specific area, the time zone in which the owner is scheduled to be in the specific area A display switching method characterized by determining whether or not a specific time zone set as is reached and determining whether or not the current position is within the specific area from the determination result. To the computer that controls the display switching operation of the ID card that displays personal information including the name of the holder on the screen,
A current position calculation function for calculating a current position of the receiver based on a signal received from a positioning satellite by a receiver built in the ID card;
A determination function for determining whether or not the current position matches position information of a specific area set in advance;
A display switching function that displays the personal information when the current position matches the position information of the specific area and hides the personal information when the current position does not match the position information of the specific area. And a program for switching display. In the display switching program according to claim 8,
The display switching function is a function for displaying other information unrelated to the personal information when the personal information is hidden. In the display switching program according to claim 9,
Instead of the current position calculation function and the determination function,
A clock function indicating the current time, and whether or not the owner has reached a specific time zone set as a time zone scheduled to be in the specific area, and from this determination result the current position within the specific area A display switching program which causes the computer to execute a determination function for determining whether or not there is a display function.

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