Display control system, display control method, and display control program

[0001] This application is a U.S. 371 Applications of International Patent Application No. PCT/JP2021/024882, filed on 30 Jun. 2021, the disclosure of which is hereby incorporated herein by reference in its entirety.

[0002] The present invention relates to a display control system, a display control method, and a display control program for performing display control of confidential information.

[0003] Conventionally, there is a technology (user interface (UI) extension technology) in which an extension UI is displayed in an overlay manner on a web screen to extend a function without modifying an existing system (see Patent Literature 1).

[0004] Patent Literature 1: JP 2017-72872 A

[0005] In a case where confidential information such as personal information or in-house confidential information is included in a UI component displayed by the UI extension technology in a system to which the UI extension technology is applied, display of the confidential information on a web screen of a terminal may be prohibited depending on the environment of the terminal that displays the web screen of the system. In such a case, a user of the system needs to confirm confidential information by another means, which causes a decrease in work efficiency.

[0006] Therefore, an object of the present invention is to solve the above-described issue, to eliminate the need to confirm confidential information by another means by a user of a system, and to prevent a decrease in work efficiency.

[0007] In order to the above issue, the present invention is a display control system including a work terminal that displays a web screen, and a mobile terminal with a camera carried by a worker of the work terminal, in which the work terminal includes a first display control unit that masks a display portion of confidential information on the web screen using a predetermined UI component and displays an ID marker indicating the confidential information on the UI component or a UI component in the vicinity of the UI component, and the mobile terminal includes an image acquisition unit that acquires an image of the web screen, a reading unit that reads an ID marker displayed on the web screen using an acquired image of the web screen, an acquisition unit that acquires confidential information corresponding to the read ID marker from a DB that stores confidential information corresponding to the ID marker, and a second display control unit that displays the acquired confidential information on a screen unit.

[0008] According to the present invention, the need to confirm confidential information by another means by a worker of a system can be eliminated.

[0022] Hereinafter, modes (embodiments) for carrying out the present invention will be described separately from a first embodiment to a fourth embodiment with reference to the drawings. The present invention is not limited to the embodiments described below.

[0023] Hereinafter, a case where a mobile terminal carried by a worker of a work terminal is smart glasses will be described as an example, but the present invention is not limited thereto. For example, the mobile terminal may be a mobile terminal with a camera (for example, smartphone with a camera or the like).

[0024] Furthermore, confidential information is, for example, information that is originally included in a web screen but is preferably not browsed by a person other than a worker (for example, personal information, in-house confidential information, and the like). A display control system of each of the embodiments masks confidential information on a web screen so that only a worker can view the confidential information, and accordingly, the worker can easily perform work while viewing the web screen together with a person other than the worker. Note that the display control system of each of the embodiments is convenient in a case where a web system that provides a web screen and the above confidential information cannot be separated, and the like.

[0025] First, an outline of a display control system 1 of a first embodiment will be described with reference to FIG. 1. The display control system 1 includes a work terminal 10 and smart glasses 20 worn by a worker of the work terminal 10. The work terminal 10 and the smart glasses 20 are communicably connected by wireless communication or the like. The work terminal 10 displays a screen (web screen) of a web system, and displays an extended user interface (UI) in an overlay manner on a UI included in the web screen.

[0026] Here, the work terminal 10 makes confidential information originally included in the web screen invisible by a masking UI component. Furthermore, the work terminal 10 displays an ID marker including information obtained by encrypting the above confidential information on the masking UI component on the web screen or a UI component in the vicinity of the UI component. Note that the ID marker is, for example, a two-dimensional code such as a QR code (registered trademark). Then, when a worker views the web screen of the work terminal 10 through the smart glasses 20, the smart glasses 20 read the encrypted confidential information included in the ID marker, decrypt the read encrypted confidential information, and display the read encrypted confidential information on the smart glasses 20.

[0027] As a result, the display control system 1 can display confidential information on the smart glasses 20 of a worker without displaying the confidential information originally included in a web screen of the work terminal 10. As a result, although a person other than a worker cannot view confidential information, the worker can perform work on a web screen while viewing the confidential information through the smart glasses 20. Accordingly, a worker can improve efficiency when performing work on a web screen.

[0028] Next, a configuration example of the display control system 1 will be described with reference to FIG. 2. As described above, the display control system 1 includes the work terminal 10 and the smart glasses 20. An external DB 30 may be equipped or may not be equipped, and a case where the external DB 30 is equipped will be described below.

[0029] First, the work terminal 10 will be described. The work terminal 10 includes a database (DB) 11, a coordination control unit 12, a display control unit (first display control unit) 13, and a system screen unit 14.

[0030] The DB 11 stores masking rules and decryption information. The masking rules are information indicating rules for masking confidential information included in a web screen.

[0031] The masking rules include, for example, (1) information of a position to be masked (corresponding URL, specific text, text box, html information, image information, width for masking, length, color of masking, and the like), (2) an extended UI that displays confidential information (encryption information of the confidential information, and identification information (ID marker) of the encryption information), (3) display position information of the extended UI (corresponding URL, specific text, text box, HTML information, image information, and the like), (4) the confidential information, and the like.

[0032] In a case where the work terminal 10 performs masking of confidential information and display processing of an ID marker separately, information of (2) and (3) may be managed separately as display rules of the ID marker.

[0033] Furthermore, the decryption information is information serving as a decryption key of the encryption information of the confidential information. The decryption information is stored in association with the identification information (ID) of the encryption information. The DB 11 is equipped in a predetermined area of a storage unit (not illustrated) of the work terminal 10.

[0034] Note that the work terminal 10 may encrypt confidential information when the confidential information is stored in the DB 11, or may encrypt confidential information when the confidential information is displayed on a web screen.

[0035] The coordination control unit 12 coordinates information with other devices via a network. For example, the coordination control unit 12 transmits decryption information of an ID marker in the DB 11 to the smart glasses 20.

[0036] The display control unit 13 performs display control of the system screen unit 14. For example, the display control unit 13 masks confidential information on a web screen using a predetermined extended UI (UI component) on the basis of the above masking rules. Furthermore, the display control unit 13 displays an ID marker indicating encryption information of the confidential information on a UI component used for masking on the web screen or a UI component in the vicinity of the UI component (for example, adjacent UI component).

[0037] Note that the display control unit 13 may determine whether to display the ID marker on the UI component or on the UI component in the vicinity of the UI component on the basis of the size of the UI component used for masking.

[0038] For example, in a case where the UI component used for masking is small for the size of the ID marker, the display control unit 13 determines to display the ID marker on the UI component in the vicinity of the UI component. On the other hand, in a case where the UI component used for masking is large for the size of the ID marker, the display control unit 13 determines to display the ID marker on the UI component used for masking. In this way, the display control unit 13 can prevent information other than a masking area on a web screen from being covered with an ID marker.

[0039] The system screen unit 14 displays a screen on the basis of display control by the display control unit 13. For example, the system screen unit 14 displays a web screen including a masking UI component (masking display extension component) on the basis of display control by the display control unit 13.

[0040] Note that, in a case where an ID marker is displayed separately from a masking UI component, the system screen unit 14 displays a web screen including a UI component of the ID marker in addition to the above masking UI component.

[0041] Next, the smart glasses 20 will be described. The smart glasses 20 include an image acquisition unit 21, an image recognition unit 22, an ID identification unit (reading unit) 23, a coordinate identification unit 24, an encryption decryption unit (acquisition unit) 25, a coordination control unit 26, a DB 27, a display control unit (second display control unit) 28, and a screen unit 29.

[0042] The image acquisition unit 21 acquires an image of a web screen displayed on the work terminal 10. For example, the image acquisition unit 21 acquires an image of a web screen by the camera of the smart glasses 20. The image recognition unit 22 recognizes an image of a web screen acquired by the image acquisition unit 21. For example, the image recognition unit 22 recognizes an ID marker on a web screen. The ID identification unit 23 identifies content (for example, ID of encryption information and the encryption information) described in an ID marker recognized by the image recognition unit 22. The coordinate identification unit 24 identifies the coordinate position of an ID marker on a web screen acquired by the image acquisition unit 21.

[0043] The encryption decryption unit 25 decrypts encryption information identified by the ID identification unit 23 using decryption information acquired from the DB 27. For example, the encryption decryption unit 25 acquires decryption information of encryption information from the DB 27 using an ID of the encryption information (ID of confidential information) identified by the ID identification unit 23 as a key. Then, the encryption decryption unit 25 decrypts the encryption information using the acquired decryption information. Thereafter, the encryption decryption unit 25 outputs the decrypted information (confidential information) to the display control unit 28.

[0044] The coordination control unit 26 coordinates information with other devices via a network. For example, the coordination control unit 26 stores decryption information received from the work terminal 10 in the DB 27.

[0045] The DB 27 stores decryption information acquired by the coordination control unit 26. Note that the decryption information is stored in the DB 27 in association with an ID of encryption information to be decrypted (ID of confidential information).

[0046] Note that the decryption information may be stored in the DB 27 or may be stored in a device outside the smart glasses 20 (external DB 30). In a case where decryption information is stored in the external DB 30, the encryption decryption unit 25 acquires the decryption information from the external DB 30 using the coordination control unit 26.

[0047] The display control unit 28 performs display control of the screen unit 29. For example, the display control unit 28 displays confidential information output by the encryption decryption unit 25 in a predetermined area of the screen unit 29. The display control unit 28 includes a coordinate designation unit 281.

[0048] The coordinate designation unit 281 designates a coordinate position of confidential information on the screen unit 29 on the basis of a coordinate position of an ID marker identified by the coordinate identification unit 24. The display control unit 28 displays the confidential information at the coordinate position designated by the coordinate designation unit 281.

[0049] For example, the coordinate designation unit 281 designates a coordinate position of confidential information at a position within a predetermined distance from a position of a corresponding ID marker when a worker (wearer of the smart glasses 20) views a web screen on the work terminal 10 through the screen unit 29. Then, the display control unit 28 displays the confidential information at the coordinate position designated by the coordinate designation unit 281.

[0050] The screen unit 29 displays a screen on the basis of display control by the display control unit 28. The screen unit 29 is transparent and a wearer of the smart glasses 20 can view a web screen on the work terminal 10 through the screen unit 29. The screen unit 29 includes a confidential information display unit 291. The confidential information display unit 291 displays confidential information at a coordinate position designated by the coordinate designation unit 281.

[0051] Next, an example of a processing procedure of the display control system 1 will be described. First, an example of a processing procedure of the work terminal 10 will be described with reference to FIG. 3.

[0052] The display control unit 13 of the work terminal 10 determines whether a screen being displayed on the system screen unit 14 is a screen to be masked (S1). For example, the display control unit 13 refers to the masking rules and determines whether the URL of the web screen being displayed on the system screen unit 14 is a URL to be masked.

[0053] Here, in a case where the display control unit 13 determines that the screen being displayed is a screen to be masked (Yes in S1), and information of a UI component to be masked (for example, information of a position to be masked, extended UI information for displaying an ID marker, display position information of the extended UI, and the like) can be acquired from the masking rules in the DB 11 (Yes in S2), the display control unit 13 starts masking of the corresponding portion (S4). Furthermore, the display control unit 13 starts display of the ID marker (S5).

[0054] On the other hand, in a case where the display control unit 13 determines that the screen being displayed is not a screen on which masking is to be displayed (No in S1), the processing returns to S1. In a case where the display control unit 13 cannot acquire information of the UI component to be masked from the masking rules in the DB 11 (No in S2), an error is displayed on the system screen unit 14 or nothing is displayed (S3), and the processing returns to S1.

[0055] In this way, the work terminal 10 can mask confidential information on a web screen and display an ID marker indicating encryption information of the confidential information on the web screen.

[0056] Next, an example of a processing procedure of the smart glasses 20 will be described with reference to FIG. 4. In a case where an ID marker is included in an image acquired by the image acquisition unit 21 (Yes in S11), the smart glasses 20 read and recognize the ID marker (S12). That is, the image recognition unit 22 of the smart glasses 20 recognizes the ID marker on the web screen. Then, the ID identification unit 23 of the smart glasses 20 identifies content described in the ID marker (encryption information and an ID of the encryption information).

[0057] When the smart glasses 20 have successfully read the ID marker (Yes in S13), the encryption decryption unit 25 determines whether decryption information of the corresponding ID (that is, the ID of the encryption information) is in the DB 27 (S14). On the other hand, in a case where the smart glasses 20 fail to read the ID marker (No in S13), the display control unit 28 displays an error on the system screen unit 14 (S16).

[0058] In a case where the encryption decryption unit 25 determines in S14 that the decryption information of the corresponding ID is in the DB 27 (Yes in S14), decrypting the encryption information is attempted using the decryption information. Here, in a case where the encryption decryption unit 25 succeeds in decrypting the encryption information (Yes in S15), the display control unit 28 determines whether the ID marker is still being displayed on the web screen on the basis of the image acquired by the image acquisition unit 21 (S17). That is, the display control unit 28 checks whether the ID marker is scrolled out from the web screen or the web screen displaying the ID marker is switched to another screen.

[0059] Here, in a case where the display control unit 28 determines that the ID marker is still being displayed on the web screen (Yes in S17), the display control unit 28 starts display of the decryption information (confidential information) at a position corresponding to the display position of the ID marker on the web screen (S18). For example, on the basis of the position of the ID marker on the web screen acquired by the image acquisition unit 21, the display control unit 28 starts display of the confidential information at a position within a predetermined distance from the position of the ID marker when a worker views the web screen through the screen unit 29 of the smart glasses 20.

[0060] On the other hand, in a case where the display control unit 28 determines that the ID marker is not displayed on the web screen (No in S17), the processing returns to S11. In a case where the encryption decryption unit 25 determines that the decryption information of the corresponding ID is not in the DB 27 in S14 (No in S14) or in a case where the encryption decryption unit 25 fails to decrypt the encryption information (No in S15), the display control unit 28 displays an error on the system screen unit 14 (S16). Then, the processing returns to S11.

[0061] In this way, the smart glasses 20 can read an ID marker from a web screen, decrypt encryption information indicated by the ID marker, and display confidential information.

[0062] Note that the above information described in an ID marker may be an ID of confidential information. An embodiment in this case will be described as a second embodiment. The same configurations as those of the first embodiment are denoted by the same reference signs, and description thereof is omitted.

[0063] As illustrated in FIG. 5, a display control system 1a of the second embodiment includes a work terminal 10a and smart glasses 20a. The work terminal 10a displays an ID marker in which an ID of confidential information is described on a web screen. Then, the smart glasses 20a read the ID marker on the web screen displayed on the work terminal 10a using a camera, search a DB for confidential information of the corresponding ID (ID described in the ID marker), and display the confidential information on the smart glasses 20a.

[0064] Next, a configuration example of a display control system 1a will be described with reference to FIG. 6. The same configurations as those of the first embodiment are denoted by the same reference signs, and description thereof is omitted. As described above, the display control system 1a includes the work terminal 10a and the smart glasses 20a. An external DB 30a may be equipped or may not be equipped, and a case where the external DB is equipped will be described below.

[0065] The work terminal 10a includes a DB 11a. The DB 11a stores masking rules of an ID marker and confidential information. The masking rules include, for example, (2) an extended UI (ID of confidential information (ID marker)) in addition to (1) information of a position to be masked and (3) display position information of the extended UI described in the first embodiment.

[0066] In a case where the work terminal 10a performs masking of confidential information and display processing of an ID marker separately, information of (2) and (3) may be managed separately as display rules of the ID marker.

[0067] The confidential information is confidential information displayed on the smart glasses 20a, and is stored in the DB 11a in association with the ID of the confidential information. Note that the confidential information may include information such as display position information (for example, display is performed immediately below the ID marker on the screen), font size, color, and the like of the confidential information on the smart glasses 20a. The DB 11a is equipped in a predetermined area of a storage unit (not illustrated) of the work terminal 10a.

[0068] A coordination control unit 12 of the work terminal 10a transmits confidential information stored in the DB 11a to the smart glasses 20a. A coordination control unit 26 of the smart glasses 20a stores confidential information transmitted from the work terminal 10a in a DB 27a.

[0069] The smart glasses 20a include a confidential information acquisition unit 25a and the DB 27a. The confidential information acquisition unit 25a acquires confidential information corresponding to an ID indicated by an ID marker from the DB 27a and outputs the confidential information to the display control unit 28. The DB 27a stores confidential information acquired by the coordination control unit 26 in association with the ID of the confidential information.

[0070] Note that the confidential information may be stored in the DB 27a in the smart glasses 20a or may be stored in a device outside the smart glasses 20a (external DB 30a). In a case where the confidential information is stored in the external DB 30a, the confidential information acquisition unit 25a acquires the confidential information from the external DB 30a via the coordination control unit 26.

[0071] Next, an example of a processing procedure of the display control system 1a will be described. Since a processing procedure of the work terminal 10a is substantially the same as that of the work terminal 10, description thereof is omitted, and an example of a processing procedure of the smart glasses 20a will be described with reference to FIG. 7.

[0072] In a case where an ID marker is included in an image acquired by an image acquisition unit 21 (Yes in S31), the smart glasses 20a read and recognize the ID marker (S32). That is, the smart glasses 20a identify content described in the ID marker (ID of confidential information).

[0073] When the smart glasses 20a have successfully read the ID marker in S32 (Yes in S33), the confidential information acquisition unit 25a determines whether corresponding confidential information is in the DB 27a (S34). For example, the encryption decryption unit 25 determines whether confidential information associated with the corresponding ID is in the DB 27a using the ID of the confidential information as a key. On the other hand, in a case where the smart glasses 20a fail to read the ID marker (No in S33), the display control unit 28 displays an error on a system screen unit 14 (S36).

[0074] In a case where the confidential information acquisition unit 25a determines that the corresponding confidential information is in the DB 27a (Yes in S34) and the corresponding confidential information can be acquired from the DB 27a (Yes in S35), the display control unit 28 determines whether the ID marker is still being displayed on the web screen (S37). Here, in a case where the display control unit 28 determines that the ID marker is still being displayed on the web screen (Yes in S37), the display control unit 28 starts display of the confidential information at a position corresponding to the display position of the ID marker on the web screen (S38).

[0075] On the other hand, in a case where the display control unit 28 determines that the ID marker is not displayed on the web screen (No in S37), the processing returns to S31. In a case where the confidential information acquisition unit 25a determines that the confidential information of the corresponding ID is not in the DB 27a in S34 (No in S34) or in a case where the confidential information acquisition unit 25a fails to acquire the confidential information (No in S35), the display control unit 28 displays an error on the system screen unit 14 (S36). Then, the processing returns to S31.

[0076] In this way, the smart glasses 20a can read an ID marker from a web screen, and display confidential information associated with an ID described in the ID marker.

[0077] In a case where decryption information of encryption information included in a read ID marker is not in a DB, smart glasses may acquire confidential information from the DB and display the confidential information on the smart glasses. An embodiment in this case will be described as a third embodiment. The same configurations as those of the above-described embodiments are denoted by the same reference signs, and description thereof is omitted.

[0078] A configuration example of smart glasses 20b of the third embodiment is illustrated in FIG. 8. As illustrated in FIG. 8, the smart glasses 20b include a DB 27b. The smart glasses 20b include an encryption decryption unit 25 and a confidential information acquisition unit 25a.

[0079] The DB 27b stores decryption information of encryption information and confidential information. The decryption information is stored in the DB 27b in association with an ID of confidential information to be decrypted. Furthermore, the confidential information is also stored in the DB 27b in association with the ID of the confidential information.

[0080] Note that the decryption information and the confidential information may be stored in the DB 27b in the smart glasses 20b or may be stored in a device outside the smart glasses 20b (external DB 30b).

[0081] In a case where the encryption decryption unit 25 has failed to acquire decryption information of encryption information associated with an ID included in an ID marker from the DB 27b, the smart glasses 20b acquire confidential information associated with the ID by the confidential information acquisition unit 25a.

[0082] Next, an example of a processing procedure of the smart glasses 20b will be described with reference to FIG. 9. Since processing of S41 to S43 of FIG. 9 is similar to processing of S11 to S13 of FIG. 4, description thereof is omitted, and processing will be described from S44 of FIG. 9.

[0083] The encryption decryption unit 25 of the smart glasses 20b determines whether decryption information of a corresponding ID is in the DB 27b (S44), and in a case where it is determined that there is no decryption information for a corresponding ID (No in S44), the processing proceeds to S51. Then, the confidential information acquisition unit 25a determines whether corresponding confidential information is in the DB 27b (S51). For example, the confidential information acquisition unit 25a determines whether confidential information associated with the ID included in an ID marker is in the DB 27b.

[0084] Then, in a case where the confidential information acquisition unit 25a determines that the corresponding confidential information is in the DB 27b (Yes in S51), and the corresponding confidential information can be acquired from the DB 27b (Yes in S52), processing in and after S53 is performed. Since the processing in and after S53 is similar to processing in and after S37 in FIG. 7, description thereof is omitted.

[0085] On the other hand, in a case where the encryption decryption unit 25 determines that decryption information of the corresponding ID is in the DB 27b (Yes in S44), processing in and after S45 is performed. Since the processing in and after S45 is similar to processing in and after S15 in FIG. 4, description thereof is omitted.

[0086] In this way, in a case where decryption information of encryption information included in a read ID marker is not in the DB 27b, the smart glasses 20b can acquire confidential information and display the confidential information on the smart glasses 20b.

[0087] For example, smart glasses may display a screen including an input field regarding confidential information and transmit information input from the input field to a work terminal. An embodiment in this case will be described as a fourth embodiment. The same configurations as those of the above-described embodiments are denoted by the same reference signs, and description thereof is omitted.

[0088] As illustrated in FIG. 10, a display control system 1c of the fourth embodiment includes a work terminal 10c and smart glasses 20c. When reading an ID marker on the screen of the work terminal 10c, the smart glasses 20c display, for example, information including a selection input field on the smart glasses 20c. Then, the smart glasses 20c transmit operation information for the selection input field to the work terminal 10c.

[0089] For example, when reading a certain ID marker and displaying a selection input field according to the read ID marker, the smart glasses 20c receive an operation on the selection input field. Then, the smart glasses 20c transmit the received operation as operation information for a UI component of the ID marker in the work terminal 10c. Thereafter, the work terminal 10c reflects the operation information on the UI component of the ID marker.

[0090] Note that the smart glasses 20c may receive an operation on the above input field by any operation device. The smart glasses 20c may receive an operation on the above information in the form of a gesture of a wearer of the smart glasses 20c.

[0091] Next, a configuration example of the display control system 1c will be described with reference to FIG. 11. The same configurations as those of the above-described embodiments are denoted by the same reference signs, and description thereof is omitted.

[0092] The work terminal 10c includes a coordination control unit 12c. The coordination control unit 12c transmits confidential information of a DB 11a to the smart glasses 20c, and also receives operation information regarding the confidential information from the smart glasses 20c.

[0093] For example, when receiving an ID of confidential information to be operated and operation information from the smart glasses 20c, the coordination control unit 12c outputs the operation information to the display control unit 13. Thereafter, the display control unit 13 reflects operation content on a UI component of an ID marker corresponding to the ID on a web screen on the basis of the operation information. As a result, the operation content is reflected in a business system (web system) that provides the web screen.

[0094] The smart glasses 20c include a coordination control unit 26c and a display control unit 28c. The coordination control unit 26c stores confidential information received from the work terminal 10c in the DB 11a, and transmits operation information regarding the confidential information to the work terminal 10c.

[0095] Furthermore, the display control unit 28c displays the confidential information at the coordinate position on a screen unit 29 designated by a coordinate designation unit 281. Here, in a case where an input operation is received in the confidential information from a wearer of the smart glasses 20c, an input field (see, for example, the selection input field illustrated in FIG. 9) is displayed on a confidential information display unit 291. Then, the display control unit 28c displays an operation result for the input field on the confidential information display unit 291.

[0096] The display control unit 28c includes an operation information input interface (IF) 282 and an operation information reflection unit 283 in addition to the above-described coordinate designation unit 281.

[0097] The operation information input IF 282 provides an interface that receives input of operation information for confidential information from a wearer of the smart glasses 20c. The operation information reflection unit 283 reflects operation information for confidential information received by the operation information input IF 282 on the confidential information display unit 291. The operation information reflection unit 283 transmits operation information for confidential information received by the operation information input IF 282 to the work terminal 10 via the coordination control unit 26c.

[0098] Next, an example of a processing procedure of the display control system 1c will be described with reference to FIG. 12. Since processing of S61 to S68 of FIG. 12 is similar to processing of S31 to S38 of FIG. 7, description thereof is omitted, and processing from S69 of FIG. 12 will be described.

[0099] After S68 in FIG. 12, the operation information input IF 282 of the smart glasses 20c determines whether it is determined that an operation or a selection for confidential information has been performed (S69). Here, in a case where the operation information input IF 282 determines that an operation or a selection for the confidential information has been performed (Yes in S69), the operation information reflection unit 283 notifies the work terminal 10c of operation information or selection information for the confidential information via the coordination control unit 26c (S70). Note that the operation information or the selection information in the notification for the work terminal 10c includes the ID of the confidential information that is an operation or selection target. Thereafter, the processing returns to S61.

[0100] On the other hand, in a case where the operation information input IF 282 determines that an operation or a selection for the confidential information has not been performed (No in S69), the processing returns to S61.

[0101] After S70, in a case where the display control unit 13 of the work terminal 10c determines that there has been notification of the operation information or the selection information from the smart glasses 20c (Yes in S71), whether an ID included in the notification is an ID registered in the DB 11a is determined (S72). Here, in a case where the display control unit 13 determines that the ID included in the notification is an ID registered in the DB 11a (Yes in S72), whether the type of the notification matches the notification type described in display rules of the ID is checked (S73). In a case of determining that the type of the notification matches the notification type described in the display rules of the ID (Yes in S73), the display control unit 13 reflects the notification content on a UI component of the work terminal 10c (S75). For example, the display control unit 13 reflects the notification content on a UI component corresponding to the ID displayed on the system screen unit 14.

[0102] On the other hand, in a case where the display control unit 13 determines that there is no notification of the operation information or the selection information from the smart glasses 20c (No in S71), the processing returns to S71. In a case of determining that the ID included in the notification is not an ID registered in the DB 11a (No in S72) or in a case of determining that the type of the notification does not match the notification type described in the display rules of the ID (No in S73), the display control unit 13 displays an error on the system screen unit 14 or nothing is displayed (S74), and the processing returns to S71.

[0103] In this way, the smart glasses 20c can reflect the content of an operation or a selection for confidential information displayed on the screen unit 29 of the smart glasses 20c on the work terminal 10c.

[0104] In addition, each component of each unit illustrated in the drawings is functionally conceptual and does not necessarily need to be physically configured as illustrated in the drawings. In other words, a specific form of distribution and integration of each device is not limited to the illustrated form, and all or part thereof can be functionally or physically distributed and integrated in any unit according to various loads, usage conditions, and the like. Further, all or any part of each processing function performed in each device can be implemented by a CPU and a program to be executed by the CPU or can be implemented as hardware by wired logic.

[0105] In addition, in the processing described in the above-described embodiments, all or part of processing described as being automatically performed may be manually performed, or all or part of processing described as being manually performed may be automatically performed by a known method. In addition to the above, the processing procedures, the control procedures, the specific names, and the information including various kinds of data and parameters that are illustrated in the above literatures and drawings can be changed as appropriate, unless otherwise specified.

[0106] The smart glasses 20 described above can be implemented by installing a program (display control program) in a desired computer as package or online software. For example, an information processing device can be caused to function as the smart glasses 20 by causing the information processing device to execute the above program. Here, the information processing device also includes mobile communication terminals such as a smartphone, a mobile phone, and a personal handy-phone system (PHS) and terminals such as a personal digital assistant (PDA).

[0107] FIG. 13 is a diagram illustrating an example of a computer that executes the display control program. A computer 1000 includes, for example, a memory 1010 and a CPU 1020. Furthermore, the computer 1000 also includes a hard disk drive interface 1030, a disk drive interface 1040, a serial port interface 1050, a video adapter 1060, and a network interface 1070. These units are connected to each other via a bus 1080.

[0108] The memory 1010 includes a read only memory (ROM) 1011 and a random access memory (RAM) 1012. The ROM 1011 stores, for example, a boot program such as a basic input output system (BIOS). The hard disk drive interface 1030 is connected to a hard disk drive 1090. The disk drive interface 1040 is connected to a disk drive 1100. For example, a removable storage medium such as a magnetic disk or an optical disk is inserted into the disk drive 1100. The serial port interface 1050 is connected to, for example, a mouse 1110 and a keyboard 1120. The video adapter 1060 is connected with, for example, a display 1130.

[0109] The hard disk drive 1090 stores, for example, an OS 1091, an application program 1092, a program module 1093, and program data 1094. That is, a program that defines each processing executed by the smart glasses 20 is implemented as the program module 1093 in which a code executable by the computer is written. The program module 1093 is stored in, for example, the hard disk drive 1090. For example, the program module 1093 executing similar processing to the functional configurations in the smart glasses 20 is stored in the hard disk drive 1090. The hard disk drive 1090 may be replaced with a solid state drive (SSD).

[0110] Data to be used in the processing of the above embodiments is stored in, for example, the memory 1010 or the hard disk drive 1090 as the program data 1094. The CPU 1020 reads the program module 1093 and the program data 1094 stored in the memory 1010 and the hard disk drive 1090 to the RAM 1012 as necessary and executes the program module 1093 and the program data 1094.

[0111] The program module 1093 and the program data 1094 are not limited to being stored in the hard disk drive 1090, and may be stored in, for example, a removable storage medium and read by the CPU 1020 via the disk drive 1100 or the like. Alternatively, the program module 1093 and the program data 1094 may be stored in another computer connected via a network (local area network (LAN), wide area network (WAN), or the like). The program module 1093 and the program data 1094 may be read by the CPU 1020 from another computer via the network interface 1070.

• • [0112] 1, 1a, 1c Display control system
  • [0113] 10, 10a, 10c Work terminal
  • [0114] 11, 11a, 27, 27a DB
  • [0115] 12, 12c, 26, 26c Coordination control unit
  • [0116] 13, 28, 28c Display control unit
  • [0117] 14 System screen unit
  • [0118] 20, 20a, 20b, 20c Smart glasses (mobile terminal)
  • [0119] 21 Image acquisition unit
  • [0120] 22 Image recognition unit
  • [0121] 23 ID identification unit
  • [0122] 24 Coordinate identification unit
  • [0123] 25 Encryption decryption unit (acquisition unit)
  • [0124] 25a Confidential information acquisition unit (acquisition unit)
  • [0125] 281 Coordinate designation unit
  • [0126] 282 Operation information input IF
  • [0127] 283 Operation information reflection unit
  • [0128] 291 Confidential information display unit