Display device, display method and program

Abstract

To provide a display device with which, when sharing a screen between one's terminal and terminals of others, or when exposing the screen of one's terminal to others, it is possible to change the display state of an icon or a file name that a user does not want to show to others to the one from which the original display state cannot be recalled.SOLUTION: A display device 2 comprises a display unit 8 and a control unit 22. The display unit 8 displays a first object 30A. The control unit 22 communicates with an external terminal 24 and causes a screen 26 of the external terminal 24 and the display unit 8 to be shared, and causes a second object 30B to be displayed on the screen 26 of the external terminal 24, with the whole or part of the first object 30A erased. The control unit 22 shows on the display unit 8 that the second object 30B is displayed on the screen 26 of the external terminal 24.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to a display device. [Background technology]

[0002] When original data is sent from a sender, the document processing device described in Patent Document 1 extracts the part to be concealed from the original data, compares the part to be concealed with the contents of the original data, and generates the data to be finally disclosed. The part to be concealed is replaced with an icon and inserted into the data to be disclosed. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2001-43213 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, the document processing device described in Patent Document 1 has a problem in that when sharing a screen between one's own terminal and another's terminal, or when showing the screen of one's terminal to another, icons or file names that one does not want others to see are displayed.

[0005] To provide a display device capable of converting object images of icons or file names that one does not want others to see into other object images that do not recall the original object images. [Means for solving the problem]

[0006] One aspect of the invention The display device according to the present invention includes a display unit capable of displaying a first object and a second object, and a control unit that erases part or all of the first object displayed on the display unit to turn it into a second object, and communicates with an external terminal to share the screen of the external terminal with the display unit, thereby displaying the second object on the screen of the external terminal and on the display unit, and after sharing of the screen of the external terminal with the display unit is terminated, the control unit returns the second object, from a state in which part or all of the first object has been erased, to the first object, from a state in which the part or all of the first object has not been erased.

[0007] A display method according to another aspect of the present invention includes displaying a first object on a display unit, erasing part or all of the first object displayed on the display unit to turn it into a second object, communicating with an external terminal to share the screen of the external terminal with the display unit, thereby displaying the second object on the screen of the external terminal and the display unit, and, after sharing of the screen of the external terminal with the display unit is terminated, returning the second object from a state in which part or all of the first object has been erased to the first object from which the part or all of the first object has not been erased.

[0008] A program according to another aspect of the present invention causes a computer to perform the following operations: displaying a first object on a display unit; erasing part or all of the first object displayed on the display unit to turn it into a second object; communicating with an external terminal to share the screen of the external terminal with the display unit, thereby displaying the second object on the screen of the external terminal and the display unit; and, after sharing of the screen of the external terminal with the display unit is terminated, returning the second object, from a state in which part or all of the first object has been erased, to the first object, from which the part or all of the first object has not been erased. Effect of the Invention

[0009] According to the present invention, an object image of an icon or a file name that one does not want others to see can be converted into another object image that does not recall the original object image. [Brief description of the drawings]

[0010] [Figure 1] 1 is an external perspective view showing a display device according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a diagram showing a detailed configuration of the display device according to the present embodiment. [Diagram 3] 1 is a diagram showing a first typical example of a display device according to an embodiment of the present invention. [Figure 4] 4A to 4C are diagrams showing a display example in a first typical example of the display device according to the present embodiment. [Diagram 5] 13(a) and (b) are diagrams showing another display example in the first typical example of the display device according to the present embodiment. [Figure 6] 13(a) and (b) are diagrams showing still another display example in the first typical example of the present embodiment. [Figure 7] 5 is a flowchart showing the operation of the display device 2 according to a first typical example of the present embodiment. [Figure 8] 5 is a flowchart showing the operation of the display device 2 according to a first typical example of the present embodiment. [Figure 9] 1(a) and 1(b) are diagrams illustrating an outline of a second typical example of a display device 2 according to the present embodiment. [Figure 10] 13(a) and (b) are diagrams showing a display example in a second typical example of the display device 2 according to the present embodiment. [Figure 11] 10 is a flowchart showing the operation of a display device according to a second typical example of the present embodiment. [Figure 12] 10 is a flowchart showing the operation of a display device according to a second typical example of the present embodiment. [Figure 13]10 is a flowchart showing another operation of the display device according to the second typical example of this embodiment. [Figure 14] 10 is a flowchart showing another operation of the display device according to the second typical example of this embodiment. [Figure 15] 1 is a diagram showing a first specific example of a display device according to the present embodiment. [Figure 16] 10(a) and 10(b) are diagrams showing a second specific example of the display device according to the present embodiment. [Figure 17] 13(a) and 13(b) are diagrams showing another example of the second specific example of the display device according to the embodiment. [Figure 18] 13(a) and 13(b) are diagrams showing a third specific example of the display device according to the present embodiment. [Figure 19] 13(a) and 13(b) are diagrams showing a third other specific example of the display device according to the present embodiment. [Figure 20] 13(a) and 13(b) are diagrams showing yet another third specific example of the display device according to the present embodiment. [Figure 21] 13(a) and 13(b) are diagrams showing a fourth specific example of the display device according to the present embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts are designated by the same reference characters and description thereof will not be repeated.

[0012] FIG. 1 is an external perspective view showing a display device 2. One example of the display device 2 is a notebook computer. The display device 2 includes a main unit 4 and a display unit 8. The display unit 8 can be opened and closed relative to the main unit 4 via a hinge 6. The display unit 8 includes a display. The display is provided with a display panel such as an LCD (Liquid Crystal Display), and the display panel is connected to a circuit board of the main unit 4 by a cable or the like.

[0013] 1 shows a state in which the display unit 8 is open. In the following, when the display unit 8 of the display device 2 is open, the direction X will be described as a direction from the left to the right in the width direction of the main unit 4. Similarly, the direction Y will be described as a direction from the lower side to the upper side in the up-down direction of the main unit 4. The direction Z will be described as a direction from the front side to the rear side in the front-to-rear direction of the main unit 4.

[0014] A circuit board on which electronic components (not shown) are mounted is housed inside the main unit 4. On the top surface of the main unit 4, input devices such as a keyboard and a touch pad are provided.

[0015] At the side end of the main device 4, there are disposed a USB (Universal Serial Bus) connector 12 that connects to a circuit board, and an interface unit 14. The USB connector 12 connects to a terminal of a USB cable (not shown) that inputs and outputs data, or a terminal of a USB memory (not shown). The interface unit 14 is connected to a terminal of a display cable (not shown) or a terminal of an Internet cable (not shown).

[0016] Examples of display cables and display cable terminals include a D-Sub (D-subminiature) 15-pin cable / D-Sub 15-pin terminal, a DVI (Digital Visual Interface) cable / DVI terminal, an HDMI (registered trademark) (High-Definition Multimedia Interface) cable / HDMI (registered trademark) terminal, or a DISPLAY Port cable / DISPLAY Port terminal.

[0017] Examples of the Internet cable and the terminal of the Internet cable are a LAN (Local Area Network) cable / LAN cable terminal, or an Ethernet cable / Ethernet cable terminal.

[0018] The display device 2 may be a computer device such as a desktop personal computer or a notebook computer, a communication device such as a landline telephone, a mobile phone, or a smartphone, or an information terminal equipped with a display.

[0019] The display device 2 can be connected to an overhead display device and also to a video conference system via a USB cable connected to the USB connector 12 and an Internet cable connected to the interface unit 14. The display device 2 can also be connected for communication with an external terminal (described later) via a USB cable or an Internet cable.

[0020] Next, the display device 2 will be described in detail with reference to Fig. 2. Fig. 2 is a diagram showing a detailed configuration of the display device 2. As shown in Fig. 2, the display device 2 further includes a communication unit 16, an acquisition unit 18, a storage unit 20, and a control unit 22 in addition to the display unit 8 described in Fig. 1. The communication unit 16 will be described later with reference to Fig. 3.

[0021] The acquisition unit 18 acquires position information of the display device 2. An example of the acquisition unit 18 is a global positioning system, that is, a GPS (Global Positioning System).

[0022] The storage unit 20 stores the contents to be displayed on the display unit 8. The storage unit 20 includes a storage device and stores data and computer programs. Specifically, the storage unit 20 includes a main storage device such as a semiconductor memory, and an auxiliary storage device such as a semiconductor memory and / or a hard disk drive. The storage unit 20 may include removable media.

[0023] The control unit 22 controls the display unit 8, the communication unit 16, the acquisition unit 18, and the storage unit 20, and further controls the operation of each unit of the display device 2. Specifically, the control unit 22 includes a processor such as a CPU (Central Processing Unit). The processor of the control unit 22 controls the operation of each unit of the display device 2 by executing a computer program stored in the storage device of the storage unit 20.

[0024] In addition, the control unit 22 determines whether or not to convert the content to be displayed on the display unit 8 based on the information acquired from the communication unit 16 or the acquisition unit 18, converts the content to be displayed on the display unit 8 based on the determination, and displays the converted content on the display unit 8. (First typical example) Next, a first typical example of the display device 2 according to the present embodiment will be described with reference to Fig. 3 to Fig. 5(b). Fig. 3 is a diagram showing the first typical example of the display device 2. Fig. 4 is a diagram showing a display example in the first typical example. Figs. 5(a) and 5(b) are diagrams showing other display examples in the first typical example of the display device 2.

[0025] As shown in FIG. 3, the display device 2 is communicatively connected to one or more external terminals 24 via a cable 28. The number of display devices 2 is not limited to one. A plurality of display devices 2 may be connected. The external terminals 24 are exemplified by external terminals 24A to 24D, but are not limited to this. One external terminal 24 may be connected, or five or more external terminals 24 may be connected. Note that the external terminals 24A to 24D will be referred to as external terminals 24 when there is no particular need to distinguish between them.

[0026] The external terminal 24 may be a computer device such as a desktop computer or a notebook computer, a communication device such as a landline phone, a mobile phone, or a smartphone, a videophone system, an overhead display device, or an information terminal equipped with a display.

[0027] The external terminals 24A to 24D include screens 26A to 26D, respectively. However, when there is no particular need to distinguish between the screens 26A to 26D, the screens 26A to 26D will be described as screen 26. The explanations regarding the external terminal 24 and the screen 26 apply throughout the present application.

[0028] 3, the display device 2 and the external terminal 24 are connected by a wired cable 28, but may be connected wirelessly. The descriptions regarding the cable 28 and wirelessly apply throughout the present application.

[0029] The communication unit 16 of the display device 2 connects communication between the display device 2 and the external terminal 24. When communication is connected, the control unit 22 of the display device 2 causes the display unit 8 of the display device 2 and the screen 26 of the external terminal 24 to be shared.

[0030] Furthermore, the communication unit 16 communicates with a video conference system or other external terminal 24 via the USB connector 12 and the interface unit 14. The communication unit 16 includes a transmitting unit and a receiving unit. An example of the wired communication unit 16 is a LAN (Local Area Network) cable, and an example of wireless communication is a wireless LAN, Wi-Fi (Wireless Fidelity), or Bluetooth (registered trademark).

[0031] 4, the display unit 8 displays the first object 30A. That is, on the display unit 8, in addition to an image of a shortcut for starting software or an application (hereinafter referred to as "first software 60") described later, an image of a file or an image of a folder that groups files (hereinafter referred to as "first interface image 32A"), and also document editing software, spreadsheet software, document browsing software, music editing software, image editing software, etc. that are started by clicking the first interface image 32A, etc. are displayed.

[0032] In addition, a first character image 34A representing the contents may be displayed in association with the first interface image 32A. Hereinafter, the first interface image 32A, the first character image 34A displayed in association with the first interface image 32A, and the screen of the opened software will be collectively referred to as a first object 30A.

[0033] The display unit 8 shown in Fig. 4 displays a first object 30A. Normally, a plurality of first objects 30A are displayed on the display unit 8, but for convenience of creating a drawing, only one first object 30A is displayed.

[0034] The first object 30A is a first interface image 32A provided by a developer or seller related to the first object 30A, a first character image 34A representing text information provided by the developer or seller, or an image of the first software 60 described below that is activated when the first interface image 32A or the first character image 34A is instructed.

[0035] 5(a) and 5(b) may be in a competitive relationship with the developer or seller of the object 30. Therefore, if the display unit 8 of the display device 2 and the screen 26 of the external terminal 24 are shared, inconvenience may occur if the user of the external terminal 24 sees the first object 30A.

[0036] For example, the first interface image 32A shown in FIG. 4 may be an image provided by, for example, the developer or seller of the first software 60, and therefore may be an image that evokes the developer or seller. As an example, if the developer or seller is Company A, the image may be visually recognized as "A." Also, the first character image 34A may be a character image that evokes Company A, which is the developer or seller of the first software 60. As an example, the character image may be visually recognized as "Company A."

[0037] Therefore, the control unit 22 communicates with the external terminal 24 to share the screen 26 of the external terminal 24 with the display unit 8, converts the first object 30A into a second object 30B that does not evoke the first object 30A, and displays the second object 30B on the screen 26 of the external terminal 24.

[0038] Specifically, the control unit 22 determines whether or not to convert a first object 30A displayed on the screen 26 of the external terminal 24 shown in Fig. 5(a) into a second object 30B shown in Fig. 5(b). Since the display unit 8 of the display device 2 shown in Fig. 4 and the screen 26 of the external terminal 24 shown in Fig. 5(a) are shared, the first object 30A shown in Fig. 5(a) is usually the same as the first object 30A shown in Fig. 4.

[0039] That is, the first object 30A in FIG. 4 and the first object 30A in FIG. 5(a) both display a first interface image 32A that is visually recognized as "A" and a first character image 34A that is visually recognized as "A Company."

[0040] Furthermore, the second object 30B is a second interface image 32B that does not resemble the first interface image 32A, a second character image 34B that does not resemble the first character image 34A, or a second software 62 from which some or all of the image contained in the first software 60 has been erased.

[0041] The software displayed on the screen 26 of the external terminal 24 is the same as the first software 60 displayed on the display unit 8 of the display device 2, but for convenience of explanation, it will be referred to as the second software 62. In the second software 62, some or all of the data displayed on the first software 60 has been erased.

[0042] The control unit 22 activates the communication unit 16 and determines whether or not communication has been established between the display unit 8 of the display device 2 and the screen 26 of the external terminal 24. If it is determined that communication has been established, the control unit 22 determines whether or not to convert the first object 30A to be displayed on the screen 26 of the external terminal 24 into a second object 30B. If it is determined that the first object 30A should be converted into the second object 30B, the control unit 22 reads out the second object 30B corresponding to the first object 30A from the storage unit 20.

[0043] 5(b) is an image that does not recall the "A" in the first interface image 32A. Also, the second character image 34B, which is visually recognized as "circle △ square," is a character image that does not recall "A Company," the developer or seller of the software that is launched by pointing to the first object 30A.

[0044] The control unit 22 converts an image of a first object 30A displayed on the screen 26 of the external terminal 24 shown in Fig. 5(a) into an image of a second object 30B shown in Fig. 5(b). For example, the control unit 22 converts a first interface image 32A visually recognized as "A" into a second interface image 32B visually recognized as "B" which does not evoke "A" and displays it on the screen 26. The control unit 22 also converts a first character image 34A visually recognized as "A Company" into a second character image 34B visually recognized as "◯△□" which does not evoke "A Company" and displays it on the screen 26.

[0045] According to this embodiment, when the screen is shared between the display device 2 and another person's external terminal 24, object images such as icons and file names that you do not want others to see can be converted into other object images that do not evoke the original object images.

[0046] The display device 2 includes a storage unit 20 that stores a first object 30A and a second object 30B in association with each other.

[0047] It is cumbersome for the user to have to consider what design of the second interface image 32B or what type of second character image 34B should be used for the second object 30B every time the screen 26 of the external terminal 24 is shared with the display unit 8 of the display device 2, or every time the position of the display device 2 changes in the second typical example described below.

[0048] Therefore, the storage unit 20 stores the first object 30A in association with the second object 30B set in advance by the user. Specifically, the storage unit 20 includes a table (not shown) in which the first object 30A and the second object 30B are associated with each other.

[0049] In the table, a first interface image 32A, a first character image 34A, etc. are stored as the first object 30A. The first interface image 32A is an image corresponding to an icon, a file, a folder, a first wallpaper described later, the first software 60, data displayed in the first software 60, a business partner, a developer, a manufacturer, a seller, and a user. The first character image 34A is a character image displayed in association with the first interface image 32A, and is a character image describing the contents of the materials of the file or folder.

[0050] In addition, a second interface image 32B and a second character image 34B are stored as a second object 30B corresponding to the first object 30A. The second interface image 32B is an image corresponding to a business partner, developer, manufacturer, seller, user, as well as an icon, a file, a folder, a second wallpaper described later, a second software 62, data displayed in the second software 62, and the like.

[0051] The second character image 34B is a character image displayed in association with the second interface image 32B, and is a character image describing the contents of the materials of the file or folder. However, in the storage unit 20, a table is not an essential component.

[0052] According to this embodiment, it is not necessary to set how to display the second object 30B every time the screen 26 of the external terminal 24 and the display unit 8 of the display device 2 are shared.

[0053] Next, before either the display unit 8 of the display device 2 or the screen 26 of the external terminal 24 is activated, the control unit 22 converts the first object 30A into the second object 30B.

[0054] In the case where the display unit 8 of the display device 2 and the screen 26 of the external terminal 24 are shared, if the first object 30A is converted into the second object 30B on the screen 26 of the external terminal 24 before sharing begins, the user is freed from the hassle of having to consider whether or not the object has been converted into the second object 30B, which is preferable.

[0055] Therefore, the control unit 22 starts the communication unit 16 and determines whether or not communication has been established between the display unit 8 of the display device 2 and the screen 26 of the external terminal 24. If it is determined that communication has been established, the control unit 22 determines whether or not to convert the first object 30A to be displayed on the screen 26 of the external terminal 24 into a second object 30B. If it is determined that the first object 30A should be converted into the second object 30B, the control unit 22 reads out the second object 30B corresponding to the first object 30A from the storage unit 20.

[0056] The control unit 22 converts a first object 30A to be displayed on the screen 26 of the external terminal 24 into a second object 30B before sharing between the display unit 8 of the display device 2 and the screen 26 of the external terminal 24 begins, or before either the display unit 8 or the screen 26 of the external terminal 24 is started.

[0057] The control unit 22 displays a second object 30B on the screen 26 of the external terminal 24 when sharing between the display unit 8 of the display device 2 and the screen 26 of the external terminal 24 begins, or when one of the screens 26 of the external terminal 24 is started up.

[0058] The point at which the control unit 22 converts the first object 30A into the second object 30B may be, for example, when the affiliation of the user of the external terminal 24 sharing the first object 30A can be confirmed by an email received from the user, or when it can be confirmed that the power of the display device 2 or the external terminal 24 has been turned ON.

[0059] According to this embodiment, the user of the display device 2 does not need to consider whether the first object 30A has been converted into the second object 30B on the screen 26 of the external terminal 24 before sharing between the display unit 8 of the display device 2 and the screen 26 of the external terminal 24 begins.

[0060] Furthermore, the user of the display device 2 does not need to consider whether the first object 30A to be displayed on the display unit 8 of the display device 2 has been converted into the second object 30B before the display unit 8 of the display device 2 is started up.

[0061] Next, an example of the second software 62 in which a part or all of the image included in the first software 60 has been erased will be described with reference to Figures 6(a) and 6(b). Figures 6(a) and 6(b) are diagrams showing yet another display example in the first typical example.

[0062] As shown in Figure 6(a), when the control unit 22 is instructed to launch the first software 60 by, for example, clicking on the first object 30A on the display unit 8 of the display device 2, the control unit 22 does not display some or all of the images contained in the second software 62 on the screen 26 of the external terminal 24, as shown in Figure 6(b).

[0063] The first software 60 is, for example, word processing software, spreadsheet software, or drawing software, which is started when the first object 30A is designated.

[0064] When the first software 60 is a word processing software or a spreadsheet software, inconvenience may occur if data entered into the first software 60 and other images are visible to other people with an interested party.

[0065] Therefore, in the case where the display unit 8 of the display device 2 and the screen 26 of the external terminal 24 are shared in correspondence with the first typical example, the control unit 22 starts up the first software 60 in response to an instruction for the first object 30A displayed on the display unit 8 of the display device 2. Then, the control unit 22 causes the second software 62 to be displayed on the screen 26 of the external terminal 24. At that time, the control unit 22 causes a part or all of the text image included in the second software 62 not to be displayed.

[0066] Specifically, as shown in FIG. 6(a), the first software 60 displays a text image 64 indicating that Company A has been billed for 156,000 yen, Company B for 103,000 yen, and Company C for 98,000 yen, respectively, for March.

[0067] 6(b), the control unit 22 does not display all or part of the text image 66 corresponding to the billing amount included in the second software 62 on the screen 26 of the external terminal 24. However, the part or all of the text image 66 that is not displayed in the second software 62 is not limited to the part of the billing amount. It may be all or part of the text image 66 displayed in the second software 62, such as a company name or an individual name.

[0068] According to this embodiment, it is possible to avoid inconveniences caused by images displayed on word processing software or spreadsheet software being viewed by others. Even if the display unit 8 of the display device 2 and the screen 26 of the external terminal 24 are shared, data of software that is not to be shown to others can be converted into an image that does not recall the original data. Furthermore, the user of the display device 2 can perform operations such as inputting, deleting, or converting data on the first software 60 without being seen by others.

[0069] Furthermore, according to this embodiment, when a screen is shared between the display device 2 and the external terminal 24, the image of the first object 30A, such as an icon that should not be shown to the user of the external terminal 24, is converted into a second object 30B that does not evoke the image of the first object 30A, thereby making it possible to avoid inconvenience that would arise from showing the image of the first object 30A to a third party who is in competition with the developer or seller of the first software 60 that is launched by pointing to the first object 30A.

[0070] Next, in accordance with the first typical example, after sharing of the screen 26 of the external terminal 24 with the display unit 8 ends, the control unit 22 converts the second object 30B into the first object 30A.

[0071] After sharing of the screen 26 of the external terminal 24 with the display unit 8 of the display device 2 is terminated, the user of the display device 2 is required to perform a cumbersome process of converting the first object 30A in the external terminal 24, which was controlled by the display device 2, back to the first object 30A by converting it to the second object 30B.

[0072] Therefore, the control unit 22 performs control to end sharing between the screen 26 of the external terminal 24 and the display unit 8 of the display device 2. Thereafter, the control unit 22 performs control to end the control of the external terminal 24 to convert the first object 30A into the second object 30B, and to return the second object 30B to the first object 30A.

[0073] Specifically, the control unit 22 determines whether or not the communication connection between the display unit 8 of the display device 2 and the screen 26 of the external terminal 24 has been disconnected by the communication unit 16. When it is determined that the communication connection has been disconnected, the control unit 22 determines whether or not to convert the second object 30B into the first object 30A.

[0074] When it is determined to convert the object into the first object 30A, the control unit 22 reads out the first object 30A corresponding to the second object 30B from the storage unit 20, and converts the second object 30B into the first object 30A.

[0075] According to this embodiment, the user of the display device 2 does not need to consider returning the second object 30B to the first object 30A after sharing of the screen 26 of the external terminal 24 with the display unit 8 of the display device 2 ends.

[0076] Next, the operation of the display device 2 according to the first typical example will be described with reference to Fig. 7 and Fig. 8. Fig. 7 and Fig. 8 are flowcharts showing the operation of the display device 2 according to the first typical example. As shown in Fig. 7 to Fig. 8, the process includes steps S10 to S36. The control unit 22 executes the processes from step S10 to step S36. Specifically, the process is as follows.

[0077] 7, first, in step S10, the control unit 22 starts up the display device 2. The process proceeds to step S12.

[0078] In step S12, the display unit 8 of the display device 2 is started up. The process proceeds to step S14.

[0079] In step S14, the display unit 8 displays the first object 30 A. The process proceeds to step S16.

[0080] In step S16, the control unit 22 causes the communication unit 16 to establish a communication connection between the display device 2 and the external terminal 24. The process proceeds to step S18.

[0081] In step S18, the control unit 22 determines whether or not to convert the first object 30A on the screen 26 of the external terminal 24 into a second object 30B. If it is determined that the first object 30A on the screen 26 of the external terminal 24 should not be converted into the second object 30B (No in step S18), the process proceeds to step S30 shown in Fig. 8. If it is determined that the first object 30A should be converted into the second object 30B (Yes in step S18), the process proceeds to step S20.

[0082] In step S20, the control unit 22 identifies the first object 30A to be converted into the second object 30B (FIG. 5(a)). The process proceeds to step S22.

[0083] In step S22, the control unit 22 reads out the second object 30B corresponding to the first object 30A from the storage unit 20. The process proceeds to step S24 shown in FIG.

[0084] 8, the control unit 22 converts the first object 30A to be displayed on the screen 26 of the external terminal 24 into a second object 30B. The process proceeds to step S26.

[0085] In step S26, the control unit 22 controls the communication unit 16 to start sharing the display unit 8 of the display device 2 with the screen 26 of the external terminal 24. The process proceeds to step S28.

[0086] In step S28, the control unit 22 causes the second object 30B to be displayed on the screen 26 of the external terminal 24. The process proceeds to step S30.

[0087] In step S30, the control unit 22 determines whether or not to end sharing between the display unit 8 of the display device 2 and the screen 26 of the external terminal 24. If it is determined that sharing should not be ended (No in step S30), the determination in step S30 is repeated. If it is determined that sharing should be ended (Yes in step S30), the process proceeds to step S32.

[0088] In step S32, the control unit 22 controls the communication unit 16 to disconnect the communication between the display device 2 and the external terminal 24. The process proceeds to step S34.

[0089] In step S34, the control unit 22 shuts down the power supply to the display unit 8. The process proceeds to step S36.

[0090] In step S36, the control unit 22 shuts down the power supply of the display device 2. Then, the process ends.

[0091] (Second typical example) Next, a second typical example of the display device 2 according to the present embodiment will be described with reference to Fig. 9(a) and Fig. 9(b) and Fig. 10(a) and Fig. 10(b). Fig. 9(a) and Fig. 9(b) are diagrams showing an outline of the second typical example of the display device 2. Fig. 10(a) and Fig. 10(b) are diagrams showing a display example in the second typical example.

[0092] In the second typical example, the display device 2 includes an acquisition unit 18, a display unit 8, and a control unit 22, as described in FIG. 2. The acquisition unit 18 acquires position information of the display device 2. The display unit 8 displays a first object 30A or a second object 30B that does not resemble the first object 30A. The control unit 22 converts the first object 30A into the second object 30B, or converts the second object 30B into the first object 30A, based on the position information of the display device 2, and causes the display unit 8 to display them.

[0093] As shown in FIG. 9(a), when a user of the display device 2 travels outside of an area owned by the organization to which the user belongs or visits a business partner, the first object 30A displayed on the display device 2 may be viewed by others who do not belong to the organization to which the user belongs.

[0094] Other people who do not belong to the organization to which the user of the display device 2 belongs may be in a competitive relationship with the developer or seller of the software corresponding to the first object 30A (Figure 4), and may experience inconvenience by showing the first object 30A to these other people.

[0095] Therefore, the acquisition unit 18 acquires the position information of the display device 2.

[0096] The control unit 22 determines whether or not to leave the first area 40 based on the position information. The first area 40 is, for example, an area owned by an organization to which the user of the display device 2 belongs. When it is determined that the display device 2 will leave the first area 40, the control unit 22 determines whether or not to convert the first object 30A displayed on the display unit 8 of the display device 2 into a second object 30B.

[0097] 10(a) shows a first object 30A displayed on the display unit 8 of the display device 2. The first object 30A displays a first interface image 32A that is visually recognized as "A," and a first character image 34A that is displayed in association with the first interface image 32A and is visually recognized as "A Company."

[0098] When it is determined that the first object 30A is to be converted into the second object 30B, the control unit 22 reads out the second object 30B corresponding to the first object 30A from the storage unit 20. The control unit 22 converts the first object 30A into the second object 30B.

[0099] That is, the control unit 22 converts the first interface image 32A, which is visually perceived as "A," into a second interface image 32B, which does not evoke "A," and is visually perceived as "B," and displays this on the display unit 8. The control unit 22 also converts the first character image 34A, which is visually perceived as "A Company," into a second character image 34B, which does not evoke "A Company," and is visually perceived as "◯△□," and displays this on the display unit 8.

[0100] The control unit 22 may convert "A" to "B" or convert "Company A" to "Company B" based on the position information when the display device 2 leaves the first area 40, even if the display device 2 or the display unit 8 is not started. The control unit 22 may perform a similar conversion before the display device 2 leaves the first area 40. The control unit 22 may perform a similar conversion before the display device 2 or the display unit 8 is started.

[0101] 9(b), the control unit 22 determines whether or not the display device 2 enters the second area 42 based on the position information of the display device 2 acquired by the acquisition unit 18. The second area 42 is, for example, a business partner that is in a competitive relationship with the developer or seller of the first software 60 corresponding to the first object 30A.

[0102] When it is determined that the display device 2 enters the second area 42, the control unit 22 determines whether or not to convert the first object 30A displayed on the display device 2 into a second object 30B. When it is determined that the first object 30A is to be converted into the second object 30B, the control unit 22 reads out from the storage unit 20 the second object 30B corresponding to the first object 30A.

[0103] The control unit 22 converts the first object 30A into a second object 30B. The control unit 22 causes the second object 30B to be displayed on the display unit 8. The display manner of the first object 30A and the second object 30B is similar to that described in FIG. 10(a) and FIG. 10(b).

[0104] Furthermore, as described in FIG. 6(a), the control unit 22 may convert and display the display of the first software 60 related to the first object 30A displayed on the display unit 8 of the display device 2 and the display of the second software 62 related to the second object 30B shown in FIG. 6(b) based on the position information acquired by the acquisition unit 18.

[0105] According to this embodiment, based on the position information of the display device 2, the first interface image 32A related to the first object 30A that one does not want others to see, and the first character image 34A accompanying the first object 30A can be converted into a second object 30B that does not evoke the first object 30A.

[0106] Next, in relation to the second typical example, the control unit 22 converts the second object 30B into the first object 30A based on the position information of the display device 2.

[0107] After the user of the display device 2 leaves the area owned by the organization they are visiting, or returns to the area owned by the organization to which they belong, the user is required to perform the cumbersome task of changing the second object 30B displayed on the display unit 8 of the display device 2 back to the first object 30A.

[0108] Therefore, the acquisition unit 18 acquires the position information of the display device 2. The control unit 22 controls the display device 2 to return (convert) the second object 30B to the first object 30A based on the position information.

[0109] Specifically, the control unit 22 activates the acquisition unit 18 to acquire the position information. The control unit 22 determines whether the display device 2 has entered the first area 40 (FIG. 9) or left the second area 42 based on the position information.

[0110] When it is determined that the display device 2 has entered the first area 40 or exited from the second area 42, the control unit 22 determines whether or not to convert the second object 30B into the first object 30A. If it is determined to convert into the first object 30A, the control unit 22 reads out the first object 30A corresponding to the second object 30B from the storage unit 20, and converts the second object 30B into the first object 30A.

[0111] According to this embodiment, the user of the display device 2 does not need to consider returning the second object 30B to the first object 30A after leaving the area owned by the organization being visited or after returning to the area owned by the organization to which the user belongs.

[0112] Furthermore, the control unit 22 may convert the first object 30A into the second object 30B based on the position information that the display device 2 is within the first area 40, or based on the participant information.

[0113] Specifically, when the display device 2 is within the first area 40 and the display unit 8 of the display device 2 needs to be shown to a third party other than the developer or seller of the first object 30A, the control unit 22 determines whether or not to convert the first object 30A into the second object 30B based on participant information obtained from the email domain name, etc.

[0114] When it is determined that the first object 30A is to be converted into the second object 30B, the control unit 22 reads out the second object 30B corresponding to the first object 30A from the storage unit 20. The control unit 22 converts the first object 30A into the second object 30B. The control unit 22 causes the display unit 8 to display the second object 30B.

[0115] Furthermore, the control unit 22 may convert the second object 30B into the first object 30A based on position information that the display device 2 is within the first area 40, or based on participant information.

[0116] In other words, when the display device 2 is within the first area 40 and a third party other than the developer or seller of the first object 30A no longer needs to see the display unit 8 of the display device 2 because the meeting has ended or for other reasons, the control unit 22 converts the second object 30B into the first object 30A based on the participant information, and then converts it back to the first object 30A and displays it on the display unit 8.

[0117] Specifically, the acquisition unit 18 acquires position information of the display device 2. The control unit 22 determines whether or not the display device 2 is within the first area 40 based on the position information. If the display device 2 is within the first area 40, the control unit 22 determines whether or not to convert the second object 30B into the first object 30A based on the participant information.

[0118] When it is determined to convert to the first object 30A, the control unit 22 reads out the first object 30A corresponding to the second object 30B from the storage unit 20. The control unit 22 converts the second object 30B into the first object 30A. The control unit 22 causes the display unit 8 to display the first object 30A.

[0119] According to this embodiment, when the display device 2 is within the first area 40, the first interface image 32A related to the first object 30A that one does not want others to see, and the first character image 34A accompanying the first object 30A can be converted into a second object 30B that does not evoke the first object 30A.

[0120] Furthermore, according to this embodiment, when the display device 2 is within the first area 40, if it is no longer necessary to show the second object 30B to others, the user does not need to return the second object 30B to the first object 30A.

[0121] Next, the operation of the display device 2 according to the second typical example will be described with reference to Figs. 11 and 12. Figs. 11 and 12 are flowcharts showing the operation of the display device 2 according to the second typical example. The process shown in Figs. 11 and 12 is the process when the display device 2 leaves the first area 40 as shown in Fig. 9(a). As shown in Figs. 11 to 12, the process includes steps S40 to S68. The control unit 22 executes the processes from step S40 to step S68. Specifically, the process is as follows.

[0122] 11, first, in step S40, the acquisition unit 18 acquires the position information of the display device 2. The control unit 22 determines whether or not the display device 2 will leave the company area (first area 40) based on the position information. If it is determined that the display device 2 will not leave the first area 40 (No in step S40), the control unit 22 repeats the process of step S40. If it is determined that the display device 2 will leave the first area 40 (Yes in step S40), the process proceeds to step S42.

[0123] In step S42, the control unit 22 determines whether or not to convert the first object 30A displayed on the display unit 8 of the display device 2 into a second object 30B. If it is determined that the first object 30A is not to be converted into the second object 30B (No in step S42), the control unit 22 repeats the process of step S42. If it is determined that the first object 30A is to be converted into the second object 30B (Yes in step S42), the process proceeds to step S44.

[0124] In step S44, the control unit 22 identifies the first object 30A (FIG. 10(a)) to be converted into the second object 30B on the display unit 8. The process proceeds to step S46.

[0125] In step S46, the control unit 22 reads out the second object 30B corresponding to the first object 30A from the storage unit 20. The process proceeds to step S48.

[0126] In step S48, the control unit 22 converts the first object 30A into the second object 30B before the display device 2 leaves the first area 40. The process proceeds to step S50.

[0127] In step S50, the control unit 22 starts up the display device 2. The process proceeds to step S52.

[0128] In step S52, the control unit 22 starts up the display unit 8. The process proceeds to step S54.

[0129] In step S54, the control unit 22 causes the second object 30B (FIG. 10(b)) to be displayed on the display unit 8. The process proceeds to step S56 shown in FIG.

[0130] In step S56, the control unit 22 determines whether or not to end use of the display device 2 and shut down the power supply of the display device 2. If it is determined that the power supply of the display device 2 should not be shut down (No in step S56), the control unit 22 repeats the process of step S56. If it is determined that the power supply of the display device 2 should be shut down (Yes in step S56), the process proceeds to step S58.

[0131] In step S58, the control unit 22 first shuts down the power supply to the display unit 8. The process proceeds to step S60.

[0132] In step S60, the control unit 22 determines whether or not to convert the second object 30B on the display unit 8 into a first object 30A. If it is determined that the object should not be converted into the first object 30A (No in step S60), the process proceeds to step S68. If it is determined that the object should be converted into the first object 30A (Yes in step S60), the process proceeds to step S62.

[0133] In step S62, the control unit 22 identifies the second object 30B to be converted into the first object 30A on the display unit 8. The process proceeds to step S64.

[0134] In step S64, the control unit 22 reads out the first object 30A corresponding to the second object 30B from the storage unit 20. The process proceeds to step S66.

[0135] In step S66, the control unit 22 converts the second object 30B on the display unit 8 into the first object 30A. The process proceeds to step S68.

[0136] In step S68, the control unit 22 shuts down the power supply of the display device 2. Then, the process ends.

[0137] Next, another operation of the display device 2 according to the second typical example will be described with reference to Figs. 13 and 14. Figs. 13 and 14 are flowcharts showing another operation of the display device 2 according to the second typical example. The process shown in Figs. 13 and 14 is a process when the display device 2 enters the second area 42 as shown in Fig. 9(b). As shown in Figs. 13 and 14, the process includes steps S80 to S110. The control unit 22 executes the processes from steps S80 to S110. Specifically, the process is as follows.

[0138] 13, first, in step S80, the acquisition unit 18 acquires the location information of the display device 2. The control unit 22 determines whether or not the display device 2 is entering, for example, a client's premises (second area 42) based on the location information. If it is determined that the display device 2 is not entering the second area 42 (No in step S80), the control unit 22 repeats the process of step S80. If it is determined that the display device 2 is entering the second area 42 (Yes in step S80), the process proceeds to step S82.

[0139] In step S82, the control unit 22 determines whether or not to convert the first object 30A to be displayed on the display unit 8 of the display device 2 into a second object 30B. If it is determined not to convert into the second object 30B (No in step S82), the processing ends. If it is determined to convert into the second object 30B (Yes in step S82), the processing proceeds to step S84.

[0140] In step S84, the control unit 22 identifies the first object 30A (FIG. 10(a)) to be converted into the second object 30B on the display unit 8. The process proceeds to step S86.

[0141] In step S86, the control unit 22 reads out the second object 30B corresponding to the first object 30A from the storage unit 20. The process proceeds to step S88.

[0142] In step S88, the control unit 22 converts the first object 30A into the second object 30B before the display device 2 enters the second area 42. The process proceeds to step S90.

[0143] In step S90, the control unit 22 starts up the display device 2. The process proceeds to step S92.

[0144] In step S92, the control unit 22 starts up the display unit 8. The process proceeds to step S94.

[0145] In step S94, the control unit 22 causes the second object 30B (FIG. 10(b)) to be displayed on the display unit 8. The process proceeds to step S96 shown in FIG.

[0146] In step S96 shown in Fig. 14, the control unit 22 activates the acquisition unit 18. The acquisition unit 18 acquires position information of the display device 2. The control unit 22 determines whether or not the display device 2 has left the second area 42 based on the position information. If it is determined that the display device 2 has not left the second area 42 (No in step S96), the control unit 22 repeats the process of step S96. If it is determined that the display device 2 has left the second area 42 (Yes in step S96), the process proceeds to step S98.

[0147] In step S98, the control unit 22 determines whether or not to convert the second object 30B on the display unit 8 into the first object 30A. If it is determined that the object should not be converted into the first object 30A (No in step S98), the process proceeds to step S106. If it is determined that the object should be converted into the first object 30A (Yes in step S98), the process proceeds to step S100.

[0148] In step S100, the control unit 22 identifies the second object 30B (FIG. 10(b)) to be converted into the first object 30A on the display unit 8. The process proceeds to step S102.

[0149] In step S102, the control unit 22 reads out the first object 30A corresponding to the second object 30B from the storage unit 20. The process proceeds to step S104.

[0150] In step S104, the control unit 22 converts the second object 30B into the first object 30A. The process proceeds to step S106.

[0151] In step S106, the control unit 22 determines whether or not to end use of the display device 2 and shut down the power supply of the display device 2. If it is determined that the power supply of the display device 2 is not to be shut down (No in step S106), the control unit 22 repeats the process of step S106. If it is determined that the power supply of the display device 2 is to be shut down (Yes in step S106), the process proceeds to step S108.

[0152] In step S108, the control unit 22 first shuts down the power supply to the display unit 8. The process proceeds to step S110.

[0153] In step S110, the control unit 22 shuts down the power supply of the display device 2. Then, the process ends.

[0154] Hereinafter, specific examples or modifications will be described with further reference to the drawings for each of the first typical example and the second typical example described with reference to Figures 1 to 14. Note that each specific example or modification is classified into a specific example or modification corresponding only to the first typical example, a specific example or modification corresponding only to the second typical example, and a specific example or modification applicable to both the first typical example and the second typical example, and therefore, in the description of each specific example or modification, it will be appropriately explained which typical example it corresponds to.

[0155] (First concrete example) A first specific example will be described with reference to Fig. 15. Fig. 15 is a diagram showing a first specific example of the display device 2. The first specific example corresponds to a first typical example. In the first specific example, the control unit 22 converts a first object 30A into a second object 30B, or converts a second object 30B into a first object 30A, for each external terminal 24, for each user of the external terminal 24, or for each organization to which the user belongs.

[0156] 15, the display device 2 and a plurality of external terminals 24 are communicatively connected via a cable 28. The display unit 8 of the display device 2 is shared with the screens 26 of the respective external terminals 24.

[0157] For example, when the display unit 8 is shared with the screen 26 of multiple external terminals 24, the organization to which the external terminal 24 belongs, the user of the external terminal 24, or the organization to which the user belongs may include a stakeholder of the first software 60 related to the first object 30A displayed on the display unit 8.

[0158] Therefore, the control unit 22 determines whether to display the first object 30A or the second object 30B for each of the external terminals 24A to 24D based on information about the external terminal 24, the user, or the organization to which the user belongs.

[0159] 15, the control unit 22 determines whether or not the user or the organization to which the external terminal 24A belongs is a party with an interest in the first software 60. The control unit 22 determines that the user or the organization to which the external terminal 24A belongs is not a party with an interest in the first software 60, and determines whether or not to display the first object 30A on the screen 26A of the external terminal 24A.

[0160] When it is determined that the first object 30A is to be displayed, the control unit 22 reads out the first object 30A from the storage unit 20 and displays the first object 30A on the display unit 8.

[0161] Next, the control unit 22 determines whether or not the users or organizations of the external terminals 24B-24D are interested parties in the first software 60. The control unit 22 determines whether or not the users or organizations of the external terminals 24B-24D are interested parties in the first software 60, and determines whether or not to display the second object 30B on the screens 26B-26D of the external terminals 24B-24D.

[0162] When it is determined that the second object 30B is to be displayed, the control unit 22 reads out the second object 30B corresponding to the first object 30A for each of the external terminals 24B to 24D from the storage unit 20. The control unit 22 displays the second object 30B on each of the screens 26B to 26D.

[0163] The control unit 22 determines on which screen 26 of the external terminal 24 the first object 30A or the second object 30B is to be displayed, for example, based on the position information of each external terminal 24, the name of the organization to which the external terminal 24 is registered, the user name of the organization identified by a face authentication system or the like, the IP address of the external terminal 24, and the domain name of the email address of the person in charge. The control unit 22 may read out this information from the storage unit 20.

[0164] The control unit 22 causes the display unit 8 of the display device 2 to display a first object 30A including a first interface image 32A visually recognized as "A" and a first character image 34A visually recognized as "A Company."

[0165] Regarding the external terminal 24A, the control unit 22 causes a first object 30A to be displayed on a screen 26A of the external terminal 24A.

[0166] With regard to the external terminal 24B, the control unit 22 determines from the position information of the external terminal 24B that the terminal is a party having an interest in the first software 60 related to the first object 30A and belongs to a different organization from the user. The control unit 22 reads out from the storage unit 20 the second object 30B including, for example, a second interface image 32B visually recognized as "B" and a second character image 34B visually recognized as "XXX", and displays it on the screen 26B of the external terminal 24B.

[0167] Similarly, with regard to external terminal 24C, the control unit 22 determines that it is a terminal that belongs to an organization different from the user based on the name of the organization to which the external terminal 24C is registered and the user name of the organization, and reads out from the memory unit 20 a second object 30B including, for example, a second interface image 32B visually perceived as "C" and a second character image 34B visually perceived as "YYY," and displays it on the screen 26C of the external terminal 24C.

[0168] Similarly, with regard to external terminal 24D, the control unit 22 infers that it is a terminal belonging to a different organization from the user based on the IP address of external terminal 24D and the domain name of the person in charge's email address, and reads out from the memory unit 20 a second object 30B including, for example, a second interface image 32B visually perceived as "D" and a second character image 34B visually perceived as "ZZZ," and displays it on the screen 26D of external terminal 24D.

[0169] According to this embodiment, the external terminal 24, person in charge, or organization that may be inconvenienced by viewing the first object 30A can be selected, and the first object 30A can be converted into the second object 30B.

[0170] (Second concrete example) A second specific example will be described with reference to Fig. 16(a) to Fig. 17(b). Fig. 16(a) and Fig. 16(b) are diagrams showing a second specific example of the display device 2. Fig. 17(a) and Fig. 17(b) are diagrams showing another example of the second specific example of the display device 2. The second specific example corresponds to the first typical example.

[0171] In the second specific example, the fact that the second object 30B is being displayed on the screen 26 of the external terminal 24 is displayed on the display unit 8 of the display device 2.

[0172] When the display unit 8 of the display device 2 and the screen 26 of the external terminal 24 are shared, a first object 30A is displayed on the display unit 8 of the display device 2, and a second object 30B is displayed on the screen 26 of the external terminal 24, as shown in Figures 16(a) and 16(b).

[0173] However, the user of the display device 2 may not realize that the first object 30A is converted into the second object 30B and displayed on the screen 26 of the external terminal 24. Furthermore, the user of the display device 2 may forget that the first object 30A is converted into the second object 30B and displayed on the screen 26 of the external terminal 24, even though the data of the first software 60 is data that should not be seen by others. Therefore, the user of the display device 2 may inadvertently point to the first object 30A displayed on the display unit 8 and open the first software 60.

[0174] Therefore, when the data of the first software 60 is data that should not be seen by others, it may be preferable for the user to be notified on the display device 2 that the first object 30A has been converted into the second object 30B and is displayed on the screen 26 of the external terminal 24.

[0175] Therefore, the control unit 22 determines whether or not the display unit 8 of the display device 2 and the screen 26 of the external terminal 24 are shared. If it is determined that they are shared, the control unit 22 determines whether or not to convert the first object 30A into a second object 30B on the screen 26 of the external terminal 24.

[0176] When it is determined to convert to the second object 30B, the control unit 22 reads out the second object 30B corresponding to the first object 30A from the storage unit 20. Furthermore, the control unit 22 reads out an indicator 50 to be displayed on the display unit 8 of the display device 2 from the storage unit 20. The control unit 22 causes the second object 30B to be displayed on the screen 26 of the external terminal 24. Furthermore, the control unit 22 causes the display unit 8 of the display device 2 to display the indicator 50 together with the first object 30A.

[0177] As shown in Fig. 16(b), a second object 30B is displayed on the screen 26 of the external terminal 24. In Fig. 16(a), the control unit 22 displays an indicator 50 on the display unit 8 in addition to the first interface image 32A and the first character image 34A included in the first object 30A. The indicator 50 indicates that the first object 30A including the first interface image 32A and the first character image 34A has been converted into the second object 30B and is displayed on the screen 26 of the external terminal 24.

[0178] The indicator 50 is not limited to an arrow as shown in Fig. 16(a). The indicator 50 may be modified to indicate the first interface image 32A or the first character image 34A with a dotted line as shown in Fig. 17(a). The indicator 50 may also be displayed by adding a pattern image to the first interface image 32A or the first character image 34A.

[0179] 16(a) may be a flashing graphic image. Furthermore, the indicator 50 may be a warning display such as "This object is being converted into another object on the external terminal 24 and displayed." In other words, it is sufficient that the indicator 50 be in a form that allows the user of the display device 2 to recognize that the first object 30A is being converted into the second object 30B and displayed on the screen 26 of the external terminal 24.

[0180] Furthermore, the first interface image 32A or the first character image 34A may be displayed transparently or semi-transparently as indicated by the dotted lines in Fig. 17(a). The first interface image 32A or the first character image 34A may blink.

[0181] According to this embodiment, the user of the display device 2 can recognize on the display unit 8 which of the first objects 30A displayed on the display unit 8 has been converted into a second object 30B on the screen 26 of the external terminal 24.

[0182] (Third Specific Example) Next, a third specific example will be described with reference to Fig. 18(a) to Fig. 21(b). Fig. 18(a) and Fig. 18(b) are diagrams showing a third specific example of the display device 2. Fig. 19(a) and Fig. 19(b) are diagrams showing another third specific example of the display device 2. Fig. 20(a) and Fig. 20(b) are diagrams showing yet another third specific example of the display device 2. The third specific example can correspond to both the first typical example and the second typical example.

[0183] Corresponding to the first typical example, when the display unit 8 of the display device 2 and the screen 26 of the external terminal 24 are shared, a first wallpaper is displayed as a first object 30A on the display unit 8, as shown in Fig. 18(a). The first wallpaper is displayed on the entire surface of the display unit 8 together with the name of the developer, manufacturer or seller of the first software 60, such as "Theta System," and a pattern that represents the first software 60, such as spreading lines of light.

[0184] However, unlike the first object 30A (Figure 10(a)), the first wallpaper is displayed on the entire surface of the display unit 8, so the user of the display device 2 may not realize that it would be inconvenient if others could see the first wallpaper, which is the first object 30A.

[0185] Therefore, for a first wallpaper that the user does not want others to see, it may be preferable for the screen 26 of the external terminal 24 to display a second wallpaper that does not recall the first wallpaper.

[0186] Therefore, the control unit 22 converts the first object 30A into a second object 30B, and displays the second wallpaper that does not evoke the first wallpaper on the screen 26 of the external terminal 24. The second wallpaper has a pattern of multiple overlapping rings spreading out. Here, the first wallpaper displayed on the display unit 8 of the display device 2 is referred to as the first object 30A, and the second wallpaper that does not evoke the first wallpaper is referred to as the second object 30B.

[0187] Also, corresponding to the second typical example, a first wallpaper is displayed as a first object 30A on the display unit 8 of the display device 2. The control unit 22 converts and displays the first wallpaper shown in Fig. 18(a) and the second wallpaper shown in Fig. 18(b) based on the position information acquired by the acquisition unit 18. The procedure of determination and processing by the control unit 22 is as described in the second typical example.

[0188] Next, the first object 30A shown in Figure 19(a) includes a first interface image 32A which is an interface for launching a first software 60 (Figure 6(a)) such as a spreadsheet software, and a first character image 34A such as "E Company Document" which indicates the name of a document created using the spreadsheet software.

[0189] Corresponding to the first typical example, when the display unit 8 of the display device 2 and the screen 26 of the external terminal 24 are shared, the control unit 22 causes the display unit 8 of the display device 2 to display a first object 30A including a first interface image 32A and a first character image 34A. Then, the control unit 22 converts the first object 30A into a second object 30B and displays it on the screen 26 of the external terminal 24. The procedure of determination and processing by the control unit 22 is as described in the first typical example.

[0190] That is, the first interface image 32A is converted into a second interface image 32B having a design that does not evoke the first interface image 32A, and is displayed on the screen 26 of the external terminal 24. Also, the first character image 34A is converted into a second character image 34B such as "O△□×" that does not evoke the first character image 34A such as "E Company documents," and is displayed on the screen 26 of the external terminal 24.

[0191] Also, in accordance with the second typical example, the control unit 22 causes the display unit 8 of the display device 2 to display a first object 30A including a first interface image 32A and a first character image 34A, as shown in Fig. 19(a). Based on the position information acquired by the acquisition unit 18, the control unit 22 converts the first object 30A including the first interface image 32A and the first character image 34A shown in Fig. 19(a) into a second object 30B including a second interface image 32B and a second character image 34B shown in Fig. 19(b), and causes the display unit 8 to display the second object 30B.

[0192] In addition, based on the position information acquired by the acquisition unit 18, the control unit 22 converts the second object 30B including the second interface image 32B and the first character image 34A shown in Figure 19(b) into a first object 30A including the first interface image 32A and the first character image 34A shown in Figure 19(a), and displays it on the display unit 8.

[0193] 20(a) includes a first interface image 32A showing a file created by starting the first software 60, and a first character image 34A showing the name of the material, such as "Company F material", that displays the contents of the file. Furthermore, the first object 30A includes a first interface image 32A showing a folder that contains one or more files, and a first character image 34A showing the name of the material, such as "Company F material", that displays the contents of the folder.

[0194] The judgment and processing procedures of the control unit 22 corresponding to the first typical example and the judgment and processing procedures of the control unit 22 corresponding to the second typical example are similar to those described in Figures 19(a) and 19(b), so duplicated explanations will be omitted.

[0195] (Fourth Specific Example) Next, a fourth specific example will be described with reference to Figures 21(a) and 21(b). The fourth specific example corresponds to the first typical example.

[0196] When the display unit 8 of the display device 2 and the screen 26 of the external terminal 24 are shared, the user of the display device 2 may open the first software 60 as shown in FIG. 21(a) even though the user of the external terminal 24 is in a competitive relationship with the developer or seller of the object 30.

[0197] Therefore, even if the first software 60 is opened on the display unit 8 of the display device 2 as shown in FIG. 21(a), it may be preferable that the user's instruction is rejected on the screen 26 of the external terminal 24 as shown in FIG. 21(b), the first software 60 is not opened, and the second object 30B continues to be displayed.

[0198] In the fourth specific example, the control unit 22 performs control so that the first software 60 is not started even when the first object 30A is pointed to on the display unit 8.

[0199] Corresponding to the first typical example, when the display unit 8 of the display device 2 and the screen 26 of the external terminal 24 are shared, the control unit 22 detects that a first object 30A including a first interface image 32A and a first character image 34A displayed on the display unit 8 of the display device 2 has been designated.

[0200] The control unit 22 determines whether or not to start the first software 60 corresponding to the first object 30A. When the control unit 22 determines to start the first software 60, the control unit 22 starts the first software 60 and causes the display unit 8 to display the first software 60 as shown in Fig. 21(a).

[0201] The control unit 22 determines whether or not to start and display the second software 62 corresponding to the first software 60 on the screen 26 of the external terminal 24. The control unit 22 determines not to start the second software 62, and as shown in Fig. 21(b), the control unit 22 does not display the second software 62 on the screen 26 of the external terminal 24, but displays the second object 30B.

[0202] According to this embodiment, corresponding to the first typical example, even if the user of the display device 2 inadvertently points to the first object 30A on the display unit 8 of the display device 2 and launches the first software 60, the second software 62 is not launched on the screen 26 of the external terminal 24, and therefore the data displayed on the second software 62 cannot be seen by others.

[0203] The embodiments of the present invention have been described above with reference to the drawings. However, the present invention is not limited to the above embodiments, and can be implemented in various aspects without departing from the gist of the present invention. In addition, various inventions can be formed by appropriately combining multiple components disclosed in each of the above embodiments. For example, some components may be deleted from all components shown in this embodiment. Furthermore, components across different embodiments may be appropriately combined. The drawings are mainly shown in a schematic manner for ease of understanding, and the number of each component shown in the drawings is different from the actual number due to the convenience of drawing. In addition, the shapes of each component shown in the above embodiments are examples and are not particularly limited, and various modifications are possible within a range that does not substantially deviate from the configuration of the present invention. [Industrial Applicability]

[0204] The present invention can be used in the field of display devices. [Explanation of symbols]

[0205] 2 Display device 4. Main Unit 6 Hinge 8 Display 12 USB connector 14 Interface section 16 Communications Department 18 Acquisition Department 20 Memory section 22 Control section 24 External Terminal 26 screens 28 Cable 30 Objects 30A First Object 32A 1st interface image 34A First character image 40 First area 42 Second area 50 Indicators 60 1st Software 62 2nd Software 64 Character images

Claims

1. a display unit capable of displaying a first object and a second object; a control unit that erases a part or all of the first object displayed on the display unit to replace it with a second object, and communicates with an external terminal to share a screen of the external terminal with the display unit, thereby displaying the second object on the screen of the external terminal and the display unit; The control unit, after sharing of the screen of the external terminal with the display unit has ended, returns the second object, which is in a state in which part or all of the first object has been erased, to the first object, which is in a state in which the part or all of the first object has not been erased.

2. The display device of claim 1, wherein the control unit causes the second object to be in a state in which part or all of the first object has been erased, for each external terminal, for each user of the external terminal, or for each organization to which the user belongs, and causes the second object to be displayed on the screen of the external terminal, or causes the first object to be displayed on the screen of the external terminal.

3. A communication unit that communicates with the external terminal via a local area network or short-range wireless communication, The display device according to claim 1 , wherein, when the screen of the external terminal and the display unit are shared, the communication unit communicates with the external terminal via the local area network or the short-range wireless communication.

4. Displaying a first object on a display unit; erasing a part or all of the first object displayed on the display unit to replace it with a second object, and communicating with an external terminal to share the screen of the external terminal with the display unit, thereby displaying the second object on the screen and the display unit of the external terminal; and returning the second object, in a state in which a part or all of the first object has been erased, to the first object, in a state in which the part or all of the first object has not been erased, after sharing of the screen of the external terminal with the display unit has ended.

5. Displaying a first object on a display unit; erasing a part or all of the first object displayed on the display unit to replace it with a second object, and communicating with an external terminal to share the screen of the external terminal with the display unit, thereby displaying the second object on the screen and the display unit of the external terminal; and after sharing of the screen of the external terminal with the display unit is terminated, returning the second object, which is in a state in which part or all of the first object has been erased, to the first object, which is in a state in which the part or all of the first object has not been erased.

Images