JP2016062561A - Display control program, display control system, and display control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lock screen that excels in design aesthetics without sacrificing security.SOLUTION: A display control program enables a mobile terminal 1 to function as a display controller 152 that causes a first layer for displaying a switchover image accepting switchover from a lock screen to a home screen and a second layer for acquiring contents to be executed in a different process from the first layer and to be displayed on the lock screen from a delivery server 2 for delivering the contents to display the contents, both to be superposed over a display unit 11 of the mobile terminal 1 to be displayed.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a display control program, a display control system, and a display control method.

  In a mobile terminal such as a smartphone, when an operation is received from a user in a standby state in which the display is turned off, a lock screen that restricts execution of processing based on the operation from the user is displayed (for example, see Patent Document 1). When this lock screen is displayed, the mobile terminal is in a locked state in which execution of processing based on an operation from the user is restricted. And a portable terminal cancels | releases a locked state and displays a menu screen etc. on a display, for example according to having received the touch operation for canceling a locked state from a user.

JP2013-93699A

  By the way, since the lock screen is a screen that is initially displayed when operating the mobile terminal, it is required to improve the design. In addition, since the application for displaying the lock screen releases the lock state or releases the access restriction to various resources, it is necessary to set a high access authority level to the application. .

  In order to allow a user to use a screen with high designability, it is conceivable that an application for displaying a design desired by the user is downloaded from the outside, and a lock screen is displayed by the application. However, since the level of access authority given to the application for displaying the lock screen is high, if malware is incorporated in the screen data downloaded from the outside, the malware is also given a high level access authority. As a result, the malware contained in the screen data can access the external network and browse the phone book, so it can execute malicious processing, although the range of design is widened. Problems arise.

  Accordingly, the present invention has been made in view of these points, and provides a display control program, a display control system, and a display control method capable of providing a lock screen with high design while ensuring security. Objective.

  A display control program according to a first aspect of the present invention is a display control program for displaying a lock screen of a mobile terminal, and accepts switching of the mobile terminal from the lock screen to the home screen of the mobile terminal. A first layer that displays a switching image and a second layer that is executed in a process different from the first layer and that acquires and displays content to be displayed on the lock screen are superimposed on the display unit of the mobile terminal. It functions as a display control unit to be displayed.

The display control unit may acquire the content and display it on the second layer based on an address on the network of the content associated with the second layer.
The display control unit may set the access authority in the portable terminal given to the content executed in the second layer to a lower level authority than the authority given to the first layer.

  The display control program causes the mobile terminal to further function as a selection unit that selects one content from a plurality of contents, and the display control unit acquires the content selected by the selection unit and displays the content on the second layer You may let them.

  The display control program notifies the process executed in each of the first layer and the second layer of the input event detected by the touch panel arranged so as to overlap the display unit to the portable terminal. You may make it function further as a notification part.

  A display control system according to a second aspect of the present invention is a display control system that includes a server and a mobile terminal, and displays content on a lock screen of the mobile terminal, wherein the server is displayed on the lock screen. And a distribution unit that distributes the content selected in the mobile terminal to the mobile terminal, wherein the mobile terminal is one content from a plurality of content registered in the server A selection unit for selecting the first layer, a first layer for displaying a switching image for accepting switching from the lock screen to the home screen of the mobile terminal, and a process different from the first layer and displayed on the lock screen A second layer for acquiring and displaying content, and a display control unit for displaying the second layer on the display unit of the mobile terminal. That.

  A display control method according to a third aspect of the present invention is a display control method for displaying a lock screen on a mobile terminal, and displays a switching image for accepting switching from the lock screen to the home screen of the mobile terminal. A first layer and a second layer that is executed in a process different from the first layer and that acquires and displays the content to be displayed on the lock screen, and is displayed on the display unit of the mobile terminal. Prepare.

  According to the present invention, it is possible to provide a lock screen with high design while ensuring security.

It is a figure which shows the outline | summary of the display control system which concerns on this embodiment. It is a functional block diagram of the portable terminal which concerns on this embodiment. It is a function block diagram of the delivery server which concerns on this embodiment. It is a sequence diagram which shows the flow of a process until the portable terminal 1 which concerns on this embodiment displays a lock screen.

FIG. 1 is a diagram showing an overview of a display control system S according to the present embodiment.
The display control system S includes a mobile terminal 1, a distribution server 2, and a developer terminal 3, and is a system that displays content on the lock screen of the mobile terminal 1. The portable terminal 1, the distribution server 2, and the developer terminal 3 are connected to be communicable via a communication network such as the Internet. In FIG. 1, one mobile terminal 1 and one developer terminal 3 are displayed, but a plurality of mobile terminals 1 and developer terminals 3 exist.

  The mobile terminal 1 is a mobile phone such as a smartphone. For example, when the mobile terminal 1 is not used for a predetermined time or an operation (lock operation) is performed so that an image is not displayed on the display unit 11 of the mobile terminal 1, an image is displayed on the display unit 11 of the mobile terminal 1. It becomes a state where it is not displayed, that is, a sleep state. Then, when a predetermined operation is performed in the sleep state, the mobile terminal 1 displays a lock screen indicating a lock state that restricts the operation on the mobile terminal 1.

  Here, in a conventional mobile terminal, an application program for displaying a lock screen (hereinafter also simply referred to as an application) releases a lock state or accesses various resources. Some access authority levels are set high. When a third party provides such an application to such a portable terminal, there arises a problem that the application can be created so as to execute malicious processing in the application.

  On the other hand, the application executed on the mobile terminal 1 has a function that requires a high level access right and a function that does not require a high level access right among the functions that constitute the lock screen. By displaying these layers in different layers and displaying these layers on top of each other, a lock screen with high design is provided while ensuring security.

  Specifically, the mobile terminal 1 according to the present embodiment includes a function related to a notification area for notifying the user of the mobile terminal 1 of various information as a function requiring a high level access authority, and a mobile terminal using the lock screen 10. The screen 10A related to the function of releasing the lock of 1 is displayed on the first layer. In addition, the mobile terminal 1 displays the screen 10B related to the design of the lock screen on a second layer different from the first layer. Here, the access authority of a lower level than the access authority given to the function corresponding to the first layer is given to the application executed in the second layer.

  Further, as shown in FIG. 1, the mobile terminal 1 according to the present embodiment acquires content distributed from the distribution server 2, and displays the screen 10B related to the design of the lock screen on the second layer based on the content. Let Here, the content registered in the distribution server 2 is content developed to enhance the design of the lock screen. For example, the content may be acquired through an communication network, such as an image or video, text information such as news, or information acquired by an application installed in the mobile terminal 1 may be displayed. Web application that can be used.

[Configuration example of mobile terminal 1]
Next, functional configurations of the mobile terminal 1 and the distribution server 2 that constitute the display control system S will be described.
First, the functional configuration of the mobile terminal 1 will be described. FIG. 2 is a functional configuration diagram of the mobile terminal 1 according to the present embodiment. The mobile terminal 1 includes a display unit 11, an input unit 12, a wireless unit 13, a storage unit 14, and a control unit 15.

The display unit 11 is configured by, for example, a liquid crystal display or an organic EL (Electro-Luminescence) display. The display unit 11 displays characters, graphics, and the like under the control of the control unit 15.
The input unit 12 includes, for example, a button, a touch panel (contact sensor) disposed so as to overlap the display unit 11, and receives an operation input from the user of the mobile terminal 1.

  The radio unit 13 modulates the signal output from the control unit 15 to generate an RF (Radio Frequency) signal, and the RF signal is transmitted to an antenna such as a base station (not shown) or a wireless LAN via an antenna (not shown). Wireless transmission to an access point (not shown). The radio unit 13 demodulates the RF signal received from the base station or the access point via the antenna, and outputs a signal obtained by the demodulation to the control unit 15. In the following description, it is assumed that the mobile terminal 1 communicates with the distribution server 2 via the wireless unit 13.

  The storage unit 14 is configured by, for example, a ROM and a RAM. The storage unit 14 stores various programs for causing the mobile terminal 1 to function. For example, the storage unit 14 stores a display control program as an application program for causing the control unit 15 of the mobile terminal 1 to function as a selection unit 151, a display control unit 152, and an event notification unit 153 described later. The storage unit 14 may read and store a program stored in a storage medium such as an external memory, or may store a program downloaded from an external device via the communication network 4.

  The control part 15 is comprised by CPU, for example. The control unit 15 comprehensively controls functions related to the mobile terminal 1 by executing various programs stored in the storage unit 14. The control unit 15 includes a selection unit 151, a display control unit 152, and an event notification unit 153.

  The selection unit 151 selects one content from a plurality of contents. For example, the selection unit 151 displays a lock screen setting screen on the display unit 11 in response to receiving the first operation from the user of the mobile terminal 1. When a second operation for requesting a content list indicating content that can be acquired on the lock screen is received in a state where the setting screen is displayed on the display unit 11, a request for the content list is transmitted to the distribution server 2. When the selection unit 151 receives the content list from the distribution server 2, the selection unit 151 displays the content list on the display unit 11.

  The selection unit 151 selects one content from the plurality of contents in response to receiving an operation for selecting one content from the plurality of contents displayed in the content list. For example, as the information indicating the selected content, the selection unit 151 stores the address on the network indicating the location of the content in the storage unit 14 as the address of the content displayed on the second layer. In this embodiment, it is assumed that the content is stored in the distribution server 2, and the address indicating the location of the content indicates the address of the content stored in the distribution server 2. However, the present invention is not limited to this. For example, the address of an external server different from the distribution server 2 may be used. Further, the content may acquire the address of the external server from the distribution server 2. For example, when the content is a content that displays a different photo every day, an address indicating the location of the photo may be acquired from the distribution server 2 and the address may be accessed.

  Note that the selection unit 151 may accept an operation of selecting a plurality of contents from the content list and select the plurality of contents. For example, as the screen design of the second layer, a plurality of display areas may be provided in the second layer, and the selection unit 151 may select a plurality of contents corresponding to these display areas. Further, the selection unit 151 may accept a plurality of contents to be displayed alternately in one display area, or accept the display order of the contents.

  The display control unit 152 acquires and displays the first layer for displaying a switching image for accepting switching from the lock screen to the home screen, and the content to be displayed on the lock screen, that is, the content selected by the selection unit 151. Two layers are displayed on the display unit 11 of the mobile terminal 1 in an overlapping manner. Here, the home screen refers to, for example, a screen for executing an application or a widget installed in the mobile terminal 1.

  Specifically, as shown in FIG. 1, the display control unit 152 displays an image indicating the unlock area as a switching image for accepting switching from the lock screen to the home screen on the screen 10A indicating the first layer. Then, an image showing the notification area is displayed. Here, in the notification area, for example, information regarding that the mail application set in the mobile terminal 1 has received mail or that the SNS application has received a message is displayed. That is, the display control unit 152 executes processing for monitoring the state of another application being executed in the mobile terminal 1 in the first layer.

  Here, in the present embodiment, as the access authority given to the application executed on the mobile terminal 1, “Web” having the lowest access authority, “Privileged” having the next highest access authority after “Web”, and having the highest access authority. A description will be given using an example in which three access authorities of high “Certified” are provided. The access authority given to the application is not limited to the three-stage access authority, but may be a two-stage access authority or an access authority of four or more stages.

“Web” is an access authority that can activate other applications and acquire information indicating the remaining battery level, illuminance, detection result of the proximity sensor, and the like of the mobile terminal 1. “Privileged” is to search the phone book of the mobile terminal 1 and acquire / delete the file stored in the storage unit 14 of the mobile terminal 1 in addition to the access authority executable by “Web”. It is the access authority that can. “Certified” is an access authority that can turn on / off various functions in the mobile terminal 1 and set a time in addition to an access authority that can be executed by “Privileged”.
“Certified” having the highest access authority is applied to the function executed in the first layer.

  Further, the display control unit 152 acquires content from the distribution server 2 based on the address of the content displayed on the second layer stored in the storage unit 14, and indicates the second layer shown in FIG. It is displayed on the screen 10B. The address of this content is embedded in an inline frame (iframe) tag included in an html document for displaying a screen on the second layer, for example, based on html5.

  Here, the display control unit 152 executes processing for generating an image corresponding to the first layer and processing for generating an image corresponding to the second layer in different processes. By doing in this way, the process which performs the process which concerns on the lock function used as the basic function which makes the portable terminal 1 function, and the process which mainly performs the process which concerns on a design can be performed separately. Even if a problem occurs in the process related to the design, the mobile terminal 1 can be kept operating without being frozen.

  In addition, the display control unit 152 sets the access authority in the mobile terminal 1 given to the content executed in the second layer to a level lower than the authority given to the first layer. Specifically, the display control unit 152 permits the execution of only the functions permitted by the access authority corresponding to the second layer among the functions provided in the content executed in the second layer. For functions that are permitted with the access authority corresponding to the first layer and are not permitted with the access authority corresponding to the second layer, the function is rejected as being unexecutable. For example, when the access authority “Privileged” is applied to the process executed in the second layer, the display control unit 152 executes the content access authority executed in the second layer in the first layer. Set only if lower than function. If the content executed in the second layer includes a function that is not permitted with the access authority corresponding to the second layer, the content may not be executed.

  In addition, when the selection unit 151 selects a plurality of contents, the display control unit 152 executes the plurality of selected contents and displays them on the second layer. For example, when a plurality of display areas are provided in the second layer as the screen design of the second layer, the display control unit 152 corresponds to the plurality of display areas selected by the selection unit 151. Display content.

  In addition, when the selection unit 151 selects a plurality of contents to be displayed alternately in one display area, the display control unit 152 displays the plurality of contents in order. At this time, the display control unit 152 may display the content based on the display order of the content received by the selection unit 151. Moreover, the display control part 152 shall comprise a 2nd layer from several layers, and may display a content with respect to each layer. In this case, the display control unit 152 may display the layer corresponding to the most recently acquired content at the highest level in the second layer. Further, when the content to be displayed on the second layer is frozen due to the absence of a response from the server, the display control unit 152 may display a layer corresponding to content different from the content at the top.

  The event notification unit 153 acquires an operation event detected by the touch panel arranged so as to overlap the display unit 11. Then, the event notification unit 153 notifies the operation event to the processes being executed in each of the first layer and the second layer. For example, the operation event includes coordinate information indicating the position operated on the display unit 11, and the program notified of the operation event executes a corresponding process based on the coordinate information.

[Configuration Example of Distribution Server 2]
Next, the functional configuration of the distribution server 2 will be described. The distribution server 2 includes a communication unit 21, a storage unit 22, and a control unit 23.

  The communication unit 21 communicates with an external device by wire. For example, the communication unit 21 communicates with the mobile terminal 1 through a communication network such as the Internet, a base station of the mobile terminal 1, or the like, under the control of the control unit 23.

  The storage unit 22 is configured by, for example, a ROM and a RAM. The storage unit 22 stores various programs for causing the distribution server 2 to function. For example, the storage unit 22 stores a distribution program for causing the control unit 23 of the distribution server 2 to function as a registration unit 231, a list transmission unit 232, and a distribution unit 233 described later. The storage unit 22 may read and store a program stored in a storage medium such as an external memory, or may store a program downloaded from an external device via the communication network 4. In addition, the storage unit 22 stores content displayed on the lock screen registered from the developer terminal 3.

  The control part 23 is comprised by CPU, for example. The control unit 23 performs overall control of functions related to the distribution server 2 by executing various programs stored in the storage unit 22. The control unit 23 includes a registration unit 231, a list transmission unit 232, and a distribution unit 233.

  The registration unit 231 accepts registration of content displayed on the lock screen of the mobile terminal 1 from the developer terminal 3. The registration unit 231 stores the content that has been registered in the storage unit 22. Note that the registration unit 231 may perform an examination by the operator on the content for which registration has been accepted, and store the content in the storage unit 22 only for the content that has passed the examination.

The list transmission unit 232 generates a content list in response to receiving a content list request from the mobile terminal 1 and transmits the content list to the mobile terminal 1.
When receiving a content acquisition request registered in the mobile terminal 1 from the mobile terminal 1, the distribution unit 233 acquires the content stored in the storage unit 22 and distributes the content to the mobile terminal 1.

[Sequence for lock screen display]
Next, a process flow until the mobile terminal 1 displays the lock screen will be described. FIG. 4 is a sequence diagram showing a flow of processing until the mobile terminal 1 according to the present embodiment displays a lock screen.

First, the distribution server 2 registers the content received from the developer terminal 3 (S1).
Subsequently, when the mobile terminal 1 receives the second operation in a state where the lock screen setting screen is displayed on the display unit 11, the mobile terminal 1 transmits a request for a content list to the distribution server 2.
Subsequently, the list transmission unit 232 of the distribution server 2 generates a content list in response to receiving the request for the content list from the mobile terminal 1, and transmits the content list to the mobile terminal 1 (S2).

  Subsequently, the selection unit 151 selects one content from the plurality of contents in response to accepting an operation of selecting one content from the plurality of contents displayed in the received content list (S3). The selection unit 151 stores the address of the selected content in the storage unit 14 as the address of the content displayed on the second layer.

  Subsequently, the display control unit 152 determines whether or not to display the lock screen on the display unit 11 (S4). For example, when the mobile terminal 1 is in the sleep state, the display control unit 152 determines that the lock screen is displayed on the display unit 11 when a predetermined operation is performed. Then, the display control unit 152 generates a screen related to the first layer and also generates a screen related to the second layer. When generating the screen related to the second layer, the display control unit 152 transmits a content acquisition request to the distribution server 2 based on the address of the content stored in the storage unit 14 in S3.

  Note that the lock screen is displayed on the display unit 11 when a predetermined operation is performed, but the present invention is not limited to this. For example, the display control unit 152 may receive a time to acquire content from the user of the mobile terminal 1 and transmit a content acquisition request to the distribution server 2 in response to the time. By doing in this way, for example, when the content is content related to news and the time when the content is acquired is set to the time when the user wakes up, the user confirms the latest news when getting up be able to.

  In addition, when there are a plurality of contents to be displayed on the second layer, the display control unit 152 may accept the time to acquire the contents for each of the plurality of contents. In this case, the display control unit 152 may display a screen for setting an acquisition timing in response to the input unit 12 receiving a predetermined operation when the content is displayed. Here, the timing for acquiring the content is not limited to the time, but may be determined based on the day of the week or the date.

  Subsequently, when receiving the content acquisition request from the mobile terminal 1, the distribution unit 233 acquires the content stored in the storage unit 22 (S 5) and distributes the content to the mobile terminal 1.

  Subsequently, the display control unit 152 generates a lock screen by superimposing the screen related to the first layer and the screen related to the second layer (S6). Then, the display control unit 152 causes the display unit 11 to display the generated lock screen. Here, the display control unit 152 determines whether or not the acquired content corresponds to the access authority set in the second layer, and the content is limited to the case where it corresponds to the access authority. It may be displayed on the second layer or stored in the storage unit 14. Further, when the acquired content does not correspond to the access authority set in the second layer, the display control unit 152 displays a message indicating that the acquired content cannot be discarded or the content cannot be displayed. It may be displayed on two layers.

[Effect in this embodiment]
As described above, the display control program executed in the mobile terminal 1 is a process in which the process for generating an image corresponding to the first layer and the process for generating an image corresponding to the second layer are different in the mobile terminal 1. Since it is executed, the mobile terminal 1 can continue to operate without being frozen even if a problem occurs in the design process in the second layer. By doing in this way, the lock screen indispensable in the portable terminal 1 can be operated stably.

  In addition, the access authority can be individually set by executing the content related to the design in a second layer different from the first layer that implements the basic function of the lock screen. As a result, for example, by setting the access authority of the content displayed in the second layer to be lower than the access authority required on the lock screen, it is prevented from being attacked by a malicious person and security is improved. Can do. In addition, since the content related to the design can be executed in the second layer, the developer who designs the content can easily execute without being aware of the notification area required for the lock screen and functions such as unlocking. Can be designed. Thereby, a lock screen with high design can be provided. In addition, since the display control program executes the first layer and the second layer in separate processes, the load of the content displayed on the second layer due to the lack of the skill of the developer who designs the content, etc. Even if it is high, the operation on the first layer can be performed without any problem. Therefore, the display control program can provide a lock screen with high design while ensuring security and stability.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above embodiment. In particular, the specific embodiments of the distribution / integration of the devices are not limited to those illustrated above, and all or a part thereof may be added in arbitrary units according to various additions or according to functional loads. It can be configured functionally or physically distributed and integrated.

1 ... mobile terminal,
11 ... display part,
12 ... input part,
13: Radio unit,
14 ... storage part,
15 ... control unit,
151... Selection unit,
152... Display control unit,
153 ... event notification part,
2 ... distribution server 21 ... communication unit,
22 ... storage part,
23 ... control unit,
231... Registration unit,
232 ... List transmission unit,
233 ... distribution section,
3 ... Developer terminal

Claims (7)

A display control program for displaying a lock screen of a mobile terminal,
The portable terminal;
A first layer for displaying a switching image for accepting switching from the lock screen to the home screen of the mobile terminal;
A second layer that is executed in a process different from the first layer, acquires and displays the content to be displayed on the lock screen;
Function as a display control unit that displays the image on the display unit of the mobile terminal.
Display control program. The display control unit acquires the content based on an address on the network of the content associated with the second layer and displays the content on the second layer.
The display control program according to claim 1. The display control unit sets the access authority in the mobile terminal given to the content executed in the second layer to a lower level authority than the authority given to the first layer.
The display control program according to claim 1 or 2. The mobile terminal further functions as a selection unit that selects one content from a plurality of contents,
The display control unit acquires the content selected by the selection unit and displays the content on the second layer.
The display control program according to any one of claims 1 to 3. The portable terminal is further caused to function as an event notification unit that notifies an input event detected by a touch panel arranged so as to overlap the display unit to a process executed in each of the first layer and the second layer. ,
The display control program according to any one of claims 1 to 4. A display control system comprising a server and a mobile terminal, and displaying content on a lock screen of the mobile terminal,
The server
A registration unit for registering content displayed on the lock screen;
A distribution unit that distributes the content selected in the mobile terminal to the mobile terminal;
The portable terminal is
A selection unit for selecting one content from a plurality of contents registered in the server;
A first layer for displaying a switching image for accepting switching from the lock screen to the home screen of the mobile terminal;
A second layer that is executed in a process different from the first layer, acquires and displays the content to be displayed on the lock screen;
A display control unit that displays the image on the display unit of the mobile terminal.
Display control system. A display control method for displaying a lock screen on a mobile terminal,
A first layer for displaying a switching image for accepting switching from the lock screen to the home screen of the mobile terminal;
A second layer that is executed in a process different from the first layer, acquires and displays the content to be displayed on the lock screen;
Displaying on the display unit of the mobile terminal,
A display control method comprising:

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