JP2018092659A - Display unit and method for controlling display unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide, in the embodiment, an information communication method, an information communication system, and an information communication device that can increase the number of uses of signage information for a user and increase utilization efficiency of digital signage.SOLUTION: According to an embodiment, a display unit has a display that is connected to a server via a network; the display displays image information; the image information is controlled by a mobile terminal; the display adds an identification mark for the mobile terminal to the image information in order to clarify the correspondence relationship with the mobile terminal controlling the image information.SELECTED DRAWING: Figure 2

Description

  The present embodiment relates to a display device and a control method for the display device.

  There is a communication system called digital signage as an electronic advertising system. In this communication system, signage terminals as displays are arranged at a plurality of locations outdoors and indoors. The signage terminal receives and displays messages such as advertisements sent from the signage server. When a user sees a signage terminal and there is a message of interest, the user can read the barcode of the advertisement using, for example, a mobile terminal and contact the advertisement provider via the mobile terminal.

JP 2012-18457 A

  The signage terminal described above unilaterally distributes information such as advertisements to viewers via the signage terminal. When looking at the current situation, there are few users who use signage terminals.

  Therefore, an object of the present embodiment is to provide an information communication method and an information communication apparatus that can increase the usage efficiency of digital signage by making the user's use of signage information rich.

  According to the embodiment, the display device is connected to a server via a network, the display device displays image information, the image information is controlled by a portable terminal, and the display device includes the image information. In order to clarify the correspondence with the mobile terminal that controls the mobile terminal, an identification mark for the mobile terminal is added to the image information.

It is a figure showing typical typical composition of digital signage to which an embodiment is applied. It is explanatory drawing shown in order to demonstrate the typical operation example of embodiment, and has shown the example of operation and operation | movement timing. It is explanatory drawing shown in order to demonstrate the typical operation example of embodiment, and is a figure which shows the example of a display of a signage terminal. It is explanatory drawing shown in order to demonstrate other typical operation examples of embodiment, and is a figure which shows the structural example of a signage terminal. It is explanatory drawing shown in order to demonstrate still another typical operation example of embodiment, and is a figure which shows the structural example of a signage terminal. It is explanatory drawing shown in order to demonstrate still another typical operation example of embodiment, and is a figure which shows the example of a display of a signage terminal, and the example of operation of a portable terminal. It is explanatory drawing shown in order to demonstrate still another typical operation example of embodiment, and is a figure which shows the example of a display of a portable terminal. It is explanatory drawing shown in order to demonstrate still another typical operation example of embodiment, and is a figure which shows the example of a display of a portable terminal. It is explanatory drawing shown in order to demonstrate the typical other operation example of embodiment, and is a figure which shows the example of a display of a signage terminal, and the example of operation of a portable terminal. It is explanatory drawing shown in order to demonstrate other typical operation examples of embodiment, and is a figure which shows the example of a display of a signage terminal, and the example of operation of a portable terminal. It is explanatory drawing shown in order to demonstrate other typical operation examples of embodiment, and is a figure which shows the example of a display of a signage terminal. It is explanatory drawing shown in order to demonstrate other typical operation examples of embodiment, and has shown the example of operation and operation | movement timing. It is explanatory drawing shown in order to demonstrate other typical operation examples of embodiment, and has shown the example of operation and operation | movement timing. It is explanatory drawing shown in order to demonstrate other typical operation examples of embodiment, and is a figure which shows the example of a display of a signage terminal. It is the figure shown in order to demonstrate another typical example of embodiment. It is the figure shown in order to demonstrate the example of the use condition at the time of using embodiment. It is the figure shown in order to demonstrate the other example of the use condition at the time of using embodiment. It is the figure shown in order to demonstrate the other example of the use condition at the time of using embodiment. It is the figure shown in order to demonstrate the further another example of the use condition at the time of using embodiment. It is the figure shown in order to demonstrate the other example of the use condition at the time of using embodiment. It is the figure shown in order to demonstrate the example of the use condition at the time of using embodiment.

  Hereinafter, embodiments will be described with reference to the drawings. In FIG. 1, reference numeral 1000 denotes, for example, a cloud server (hereinafter simply referred to as a server). The server 1000 can communicate with the mobile terminal 2000 via the base station 3000.

  The mobile terminal 2000 includes, for example, a personal computer 2001, a tablet 2002, and a mobile phone (such as a smart phone) 2003.

  The server 1000 is connected to the signage terminal 4000 via a network (Internet, local area network, wireless system, or a complex system thereof) 5000. A signage terminal 4000 with a reference numeral is shown as a representative, but there are a plurality of signage terminals, and they are installed in various environments including outdoor and indoor.

  For example, the signage terminal 4000 can be installed at multiple event venues, multiple company locations, multiple factory locations, multiple station locations, multiple supermarkets and outlet malls, multiple department store locations, and hospitals. And several locations of facilities.

  The signage terminal 4000 includes a transceiver 4001 connected to the Internet, a signal processor 4002 for processing transmission / reception signals, a display 4003, and a control unit 4004 that performs overall control. Further, a connection terminal 4005 for connecting a USB memory or the like may be provided.

  FIG. 2 shows an example when mutual communication is performed among the mobile terminal 2000, the signage terminal 4000, and the server 1000.

  The portable terminal 2000 can acquire an address from the signage terminal 4000 based on an operation by the user (step SA1). This address indicates, for example, a URL (Uniform Resource Locator). There are various methods for acquiring the address, which will be described later.

  The portable terminal 2000 can perform line connection with the server 1000 using the acquired address. When the user wants to upload a message to the signage terminal 4000, the user requests the server 1000 for a card template (step SA3). In this case, for example, the user presses the template request button on the card of the mobile terminal 2000.

  Then, the server 1000 transmits a card template to the portable terminal 2000 (step SA4). As a result, the portable terminal 2000 creates content as a card based on the user's operation (step SA5).

  Although the card will be described later, for example, the card may be referred to as a frame, an image generation piece, a template, a strip, a tile, or the like, and the name is not limited. The card said here also includes the following meanings, for example.

  That is, it can be captured as an image of a part to be pasted on the signage screen. There are various types of parts, and the shape of each card may be basically the same. In the case of the same shape, there is a convenience that it is easy to arrange and arrange on the signage screen.

  In addition, a vertically long common shape may be standard so that the shape of the card is the same as the screen of the smart horn used by the user.

  However, of course, the shape of each card may be different. For example, a shape similar to the smart horn screen of each user, or a shape set or selected by the user may be used. Further, the size, color, shape, and the like of the card may be selected for each type of content conveyed by the card, for each user, and for each category. For example, the user A and the user B who communicate with each other may negotiate the shape and color of the cards used with each other. Also, when telling the destination, etc., depending on the transportation system to be used, a bus-shaped card or a bus-marked card, a train-shaped card or a train-marked card, or a bicycle-shaped card Cards and cards with bicycle marks may be made available.

  Each card stores content created by the user, and when the card is posted, the card with the content or the designed card is displayed and reproduced on the signage terminal.

  A card with content or a designed card can be obtained as an image on the screen of the portable terminal from the signage board displayed on the signage terminal. A card can be created not only by each user but also by a signage provider.

  As contents of the card, characters, images, moving images, sounds, and the like can be added as categories.

  The card can be grasped as a virtual sensation that it is affixed or placed at a predetermined position in the screen of the signage terminal, suspended, or lifted.

  For example, the card handling method can be explained with a virtual space sense in the signage screen. For example, a hook or a hanging tool is provided in advance on the wall, and the user can hang a card on each hook, and the user feels to pick up the card hanging on the hook. be able to.

  In a virtual space sense, the role of the “wall” is the entire signage screen, and the hanging tool can be felt as a frame frame on which each card is arranged.

  Furthermore, in the virtual space, each card can be hung on a single hook. That is, a plurality of cards can be stacked and displayed on each frame. An example of this usage will be described later.

  The user uses the template on the screen of the mobile terminal 2000 to create content for the message. The content includes a character string and a photograph with a comment added.

  The user can describe characters in the card template by looking at the screen of the mobile terminal 2000 and operating the keyboard on the touch panel. When the portable terminal 2000 has a touch panel input function, characters can be input by touching the pen tip or the fingertip. Furthermore, when the portable terminal 2000 further has a camera function, a photographic image can be combined with the card template.

  The user can add the above-mentioned contents such as characters and photos to finish the card into a desired card (design).

  Next, when it is desired to upload the card to the server (that is, the signage terminal), the portable terminal 2000 is operated to perform the upload (step SA6). The card is sent to server 1000, which transmits this card to signage terminal 4000 (step SA7). Thereby, the card uploaded by the user is displayed on the signage terminal 4000. The card displayed on the signage terminal 4000 can be erased by the user who uploaded the card. The act of “uploading” may be referred to as “posting or posting act”.

  The card displayed on the signage terminal 4000 can also be downloaded by another user or a user who has uploaded the card. In this case, the number of downloads may be set. In other words, the user performs an operation for uploading the created card to the server 1000, but before this operation is performed, the number of times the card is downloaded is limited to, for example, 10 times, 20 times, and 30 times. May be given. Download contents include message messages (text), voice, and photos.

  As described above, the user can feel as if the signage terminal 4000 is directly operated by the mobile terminal 2000. That is, the portable terminal 2000 and the signage terminal 4000 are in physically close areas. For this reason, when the signage terminal 4000 displays the card (step SA8), the user can feel as if he / she is operating the signage terminal he / she is looking at. Note that the portable terminal 2000 does not need to hold a dedicated (or general-purpose) application, and the above-described operation (as if the signage terminal 4000 is directly operated) is possible by accessing the signage terminal 4000. It is.

  FIG. 3 shows a state where cards 4011, 4012, 4013, and 4015 are displayed on the signage terminal 4000. Further, the signage terminal 4000 can display, for example, a QR code (registered trademark) 4020 (hereinafter simply referred to as a code) on the same screen as the screen for displaying a card. This code includes an URL and provides an address for accessing the server 1000.

  The address providing means is not limited to the above method, and there are various methods. The address may be provided by a bar code. Alternatively, AR (Augmented Reality) technology or the like may be applied. For example, when a character of the signage terminal 4000, for example, “message board” is photographed with the camera of the mobile terminal 2000, an address for server access may be acquired as augmented reality (AR) data.

  Note that the above code switches to different contents depending on the time zone. The switching time interval can be arbitrarily set, for example, in units of 30 minutes, 1 hour, 2 hours, 3 hours, 4 hours. This naturally switches the access address of the server 100 as well.

  The reason why the code is switched as described above is that the code read by the portable terminal 2000 that has read the code is stored, and then the portable terminal 2000 accesses the server 1000 from a place different from the place where the signage terminal 4000 is installed. This is to prevent this. Even if the portable terminal 2000 accesses the server 1000 in a place different from the place where the signage terminal 4000 is installed, the user cannot see the image (card) of the signage terminal 4000.

  FIG. 4 shows an example in which the signage terminal 4000 further includes a short-range transceiver 4007. The short-range transceiver 4007 may communicate with the mobile terminal 2000 and provide the address of the server 1000 to the mobile terminal 2000.

  The short-range transceiver 4007 includes weak radio waves, infrared rays, WiFi (Wireless Fidelity; conforming to IEEE802.11x), NFC (Near Field communication; low-speed magnetic coupling), Bluetooth (registered trademark) conforming to IEEE802.15.1, transfer jet (Transfer Jet; ultra-short distance high-speed wireless communication) or the like may be applied.

  When the signage terminal 4000 can recognize the mobile terminal 2000 by the short-range communication, the following usage may be executed. The fact that the mobile terminal 2000 is located in the vicinity of the signage terminal 4000 is recognized (understood) by the signage terminal 4000, for example, when the signage terminal 4000 acquires GPS (Global Positioning System) information from the mobile terminal 2000. It is possible.

  For example, an original application may be installed in the signage terminal 4000 so that communication partners can be restricted or controlled. For example, the signage terminal 4000 can refuse communication with a specific partner. It is also possible to transfer the mobile terminal address of a specific partner to the server 1000. Further, when the signage terminal 4000 detects the mobile terminal address of a specific partner, it can also notify the specific server of the detection.

  FIG. 5 shows an example in which the signage terminal 4000 further includes a short-range transceiver 4007 and a camera 4008.

  In the case of this embodiment, a user located near the signage terminal 4000 can be imaged and specified by the camera 4008. The signage terminal 4000 can determine whether the user is located in front of the signage terminal 4000 and is looking into the screen of the signage terminal 4000.

  When the user is located in a specific area (imaging area) near the signage terminal 4000, the signage terminal 4000 can determine that the user is going to use the signage system. At this time, the signage terminal 4000 may provide operation guidance to the user through voice or an image.

  Also in this embodiment, the signage terminal 4000 can recognize the user and the portable terminal 2000. For this purpose, for example, the user can refuse to use signage. It is also possible to transfer the user's face image to the server 1000 or a specific server. In addition, it is possible to compare the user's face image with the past user's face image and to determine an inappropriate user.

  FIG. 6A is a diagram illustrating a display example of the signage terminal 4000 and an operation example of the portable terminal 2000 (2003). The portable terminal 2003 includes a display (display) that also serves as a touch panel. When the portable terminal 2003 receives an address from the signage terminal 4000 and participates in the signage system, the portable terminal 2003 shifts to the operation mode of the signage terminal 4000.

  The portable terminal 2003 can select (specify) one of the cards 4011 to 4015 displayed on the signage terminal 4000.

  For example, an arrow-shaped selection mark 2012 is displayed on the display of the mobile terminal 2003. When the user swipes the selection mark 2012 in the direction indicated by the arrow (right direction), the designation mark displayed on the signage terminal 4000 is changed from the position of the designation mark 4031 (the position of the card 4011) to the position of the designation mark 4032. It is possible to move to (the position of the card 4012). Further, when the user swipes the selection mark 2012 in the direction of the arrow (rightward), the designation mark can be moved to the next card 4013 position. When the selection mark 2012 is swiped in the direction indicated by the arrow (leftward), the designated mark moves to the leftward position by one card for each operation (swipe). Thus, the user can designate a desired card.

  The portable terminal 2003 can display the download mark 2014 on the display. For example, when the download mark 2014 is swiped in the arrow direction in a state where the card 4011 is specified, the mobile terminal 2003 can acquire the card 4011. The card 4011 is actually sent from the server 1000 to the portable terminal 2003.

  The portable terminal 2003 can display the posting mark 2011 on the display. By swiping the posting mark 2011 in the direction of the arrow, the created card can be displayed on the signage terminal 4000. Actually, the created card is transmitted from the portable terminal 2003 to the server 1000.

  The portable terminal 2003 can display the deletion mark 2013 on the display. The user can specify a card to be deleted by operating the selection mark 2012 and using the designation mark. Then, when the deletion mark 2013 is swiped or touched in a state where the card to be deleted is designated by the designation mark, the designated card is deleted. However, the cards that can be deleted are usually only the cards posted from the mobile terminal 2003 that created the card. In addition, only a specific person (a manager of digital signage) can delete the card. For example, the administrator can own a special authentication number in order to operate digital signage.

  As shown in FIG. 6B, the selection mark and the download mark on the portable terminal 2003 (2000) are, for example, an arrow mark (selection mark) in the direction from the background screen display 2050 that can be conscious of the message board to the portable terminal 2003 (2000). Mark) 2052, and an arrangement (and display example) such as a right arrow mark 2053 and a left arrow mark 2054 suggesting movement from one column (item column) to the next column of the message board. Further, in the display example (array) shown in FIG. 6B, the arrow mark in the direction toward the message board (signage terminal) 4000 on the next screen (FIG. 6C) that is switched by turning on the POST MESSAGE button 2051 for the posting mark 2055. May be displayed.

  In FIG. 7, it is assumed that the content of the card 4013 is a card 4013 that reads “Cheap ticket for today's baseball game” and “Download this message and come to ...”. In the case of such a card 4013, it is expected that many people want a ticket. Therefore, the ticket provider (user who uploaded the card) can limit the number of downloads. The example of FIG. 7 shows a state in which the cards are overlapped so that the number of card downloads is the remaining four times so that they can be recognized (visually) instantly. In the example of FIG. 7, the display is displayed so that the number of remaining cards is reduced by one for each download.

  In the above example, the number of downloads is limited, but the downloadable period and time may be limited. For example, when a bargain sale advertisement of a product is performed through a card, the period and time of the advertisement may be set. When a period or time is set, the card is automatically deleted when the set period or time elapses.

  FIG. 8A shows an example in which there are a large number of postings to the signage terminal 4000, and the card is reduced and displayed. In the digital signage system of the embodiment, for example, 100 postings can be made to one signage terminal. In the display example shown in FIG. 8A, it is possible to identify that a plurality of users are accessing a plurality of cards at the same time (or a plurality of users are accessing one card). An identifier (identification display) 4016a (card 4016), 4017a (card 4017), 4018a, 4018b (card 4018) that can be visually recognized by the user is displayed at a predetermined position near the card. The identifier (identification display) is, for example, a color bar (marking by color), coloring of the outer frame of the card (changing the color of the entire or part of the outer frame of the card), or the MAC address (Media Access Control) of the portable terminal The display of the model according to the above, the display of the number of several digits of the telephone number (of the mobile terminal), and combinations thereof can be used. Of course, it may be a continuation number (serial number) from 1 in the order of access. In this case, a serial number corresponding to the order of access is transmitted from the signage terminal 4000 to each mobile terminal (user). The serial number is preferably maintained until the communication with the mobile terminal (user) is completed.

  FIG. 8B shows an example in which a card 4017 selected by the user among a large number of cards displayed on the signage terminal 4000 is displayed in an enlarged manner.

  The embodiment showing the change in the display state from FIG. 8A to FIG. 8B is an example when the card enlargement display function is operated. When a large number of cards are reduced and displayed on the signage terminal 4000, it may be difficult for the user to see the contents of the card. Therefore, when a desired card is selected as shown in FIG. 8A and the enlargement button 2015 of the mobile terminal 4000 is touched, for example, the desired card 4017 is enlarged and displayed as shown in FIG. 8B. In the display example of FIG. 8A, when the selection mark 2012 is moved in the direction indicated by the arrow next to the rightmost card in the first row (upper row), the left end of the second row (lower row). In this example, it is possible to move to the card immediately below (moving to the rightmost card in the second row and then moving one card at a time toward the left card.

  FIG. 9 shows a system operation example when the signage terminal 4000 has a function of recognizing the user of the mobile terminal 2000. The signage terminal 2000 can acquire the mobile terminal number of the mobile terminal 2000 or the user's face image (step SB1). The signage terminal 2000 transmits the acquired user information such as a face image to the server 1000 (step SB2).

  Then, the server 1000 can use the user's face image and database, identify the user, and determine whether the user is a qualified person or an ineligible person (step SB3). The unqualified person is, for example, a criminal or a history of destroying past signage terminals. In such a case, the server 1000 can transmit a warning screen, a warning text, a warning sound, or the like to the signage terminal 4000 (step SB4).

  FIG. 10 shows an example of system operation when the server 1000 has a function of recognizing the user of the mobile terminal 2000. The mobile terminal 2000 acquires an address from the signage terminal 4000 (step SC1). Then, the signage terminal 4000 connects to the server 1000 using the acquired address (SC2). At this time, the server 1000 determines whether or not the user is suitable for using the signage based on the mobile number (ID (identification information) unique to the user) of the mobile terminal 2000 ( Step SC3). If the user is ineligible, the user's mobile terminal 2000 is notified that the user is ineligible (SC4).

  For example, in the case where the card is a card that can be used by special members, the above-mentioned qualified / unqualified person may be determined.

  FIG. 11 illustrates that when a card template is requested from the mobile terminal 2000 to the server 1000, a template to be used can be selected from various types of templates. FIG. 11 shows various types of templates 2031, 2032, and 2033 having different designs and colors.

  FIG. 12 shows an example in which the signage terminal 4000 is used at a hospital reception, for example. The signage terminal 4000 is used for registering the examination order of patients who have visited the hospital. At this time, the user can receive a card for registering the order of examination from the server. When the nomination is written on the card and uploaded, the nomination is displayed on the signage terminal 4000 for receiving the examination, and the registration of the order of examination is completed.

  When the user's portable terminal 2000 is downloaded, the signage terminal 4000 can determine that the user has canceled the examination or entered the examination room. Then, it is possible to notify that the examination is approaching to the mobile terminal of another user who has made a reservation after, for example, about 5 people from the user who has entered the examination room or the current cancellation room.

  FIG. 13A shows a state in which, for example, Tom operates a portable terminal (smart horn) 2000 to post a card with a message on the signage terminal 4000.

  FIG. 13B shows a state in which a message posted by Tom is downloaded while Betty is operating the mobile terminal (smart horn) 2000 and watching the signage terminal 4000, for example.

  In FIG. 14, Tom takes a picture of a person or a catalog using the camera function of the portable terminal 2000, pastes this picture on a card, creates a card for posting, and signs this card to signage. A state of posting to the terminal 4000 is shown. In this case, a message may be added to the card together with the photo. For example, the message may be input by handwriting or pen input, or may be input from a keyboard.

  FIG. 15 shows a state in which, for example, a plurality of clothing stores (one store may post a plurality of cards) post a clothing advertisement using a smart horn. A clerk at a clothing store takes a picture of a model or mannequin using the camera function of a mobile terminal (for example, a smart horn). Next, the user operates the mobile terminal and attaches the photographed photograph to a card that uses the photograph. Then, the user can come to the peripheral area of the signage terminal near the store and post a card having the photographed image as content. In this case, voice data can be posted together with the card. When a user downloads a card, a voice explanation can be received by the downloaded smart phone.

  FIG. 16 is an example of a typical installation location indicating where the signage terminal according to the present embodiment is installed. For example, signage 4000 (1) may be installed on the side of a building road. For example, a large signage 4000 (2) may be installed on the wall surface of a building. For example, signage 4000 (3), 4000 (4) may be installed at the entrance of a building or information. Moreover, 4000 (5) may be installed in the building.

  FIG. 17 is an example showing where the mobile terminal of the user who uses the signage terminal according to the present embodiment is actually performing electrical communication.

  The mobile terminal 2000 actually communicates with a web socket server and a web server. At this time, the signage terminal 4000 installed near the mobile terminal 2000 is controlled by the server and can behave as if it is communicating with the mobile terminal 2000.

  In the above description, in the constituent elements of the claims, even when the constituent elements are expressed in a divided manner, when they are expressed in combination, or even when expressed in combination, they are within the scope of the present invention. . Even when the claims are expressed as a method, the apparatus of the present invention is applied. Further, the processing at the signage terminal and the processing at the server may be operated by computer programs and instructions. It goes without saying that an information storage medium (disk or semiconductor memory) from which data can be read by a computer may be used.

  In the signage system described above, communication between the signage terminal and the portable terminal is one-to-one communication with a user who is actually viewing the card (information) displayed on the signage terminal. It is preferable. For this reason, the use value of the signage system can be obtained by grasping that the user is located in the vicinity of the signage terminal by using the above-described methods such as face recognition, GPS use, and code change after time. Can be increased.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  1000 ... server, 2000 ... mobile terminal, 3000 ... base station, 4000 ... signage terminal, 5000 ... network, 4011-4013, 4015 ... card, 4020 ... code.

Claims (12)

Having a display connected to the server via the network;
The display device displays image information, and the image information is controlled by a mobile terminal.
The display device adds an identification mark for the mobile terminal to the image information in order to clarify a correspondence relationship with the mobile terminal that controls the image information.
A display device characterized by that.   The display device according to claim 1, wherein the image information is controlled by a communication path between the display and the portable terminal.   The identification mark is an identification mark that is different for each of the different portable terminals when a plurality of the image information is displayed and the image information is controlled by different portable terminals. Display device.   The display device according to claim 1, wherein the image information to which the identification mark is added is image information for a message.   The display device according to claim 1, wherein the image information to which the identification mark is added is image information for sale.   6. The display device according to claim 5, wherein the image information for sale displays the remaining number of downloads when a download operation is performed by the mobile terminal. A control method of a display device having a display connected to a server via a network,
The display device displays image information, and the image information is controlled by a mobile terminal.
In the display, in order to clarify the correspondence with the mobile terminal that is controlling the image information, an identification mark for the mobile terminal is added to the image information.
A control method for a display device.   8. The display device control method according to claim 7, wherein the image information is controlled by a communication path between the display and the portable terminal.   8. When a plurality of the image information is displayed and each image information is controlled by a different mobile terminal, the identification mark is displayed as a different identification mark for each different mobile terminal. Display device control method.   The display device control method according to claim 7, wherein the identification mark is added to image information for a message.   The display device control method according to claim 7, wherein the image information to which the identification mark is added is image information for a sale.   The display device control method according to claim 11, wherein the image information for sale displays the remaining number of downloads when a download operation is performed by the mobile terminal.

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