JP2014174717A - Information terminal device, image display method, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information terminal device having an information concealing function having high convenience, without requiring mounting for each application function.SOLUTION: An information terminal device 1 includes a first layer image 121, a second layer image 122 stacked on the upper layer of the first layer image 121, when viewed from a user, an application processing part 103 which displays an image for application corresponding to a predetermined application function as the first layer image 121, and a mask processing part 104 which is a processing part independent of the application processing part 103 and displays an image for masking specified based on a predetermined input signal as the second layer image 122.

Description

  The present invention relates to an information terminal device capable of concealing desired information, an image display method on a display screen thereof, and a program.

  A multifunctional information terminal device (hereinafter referred to as an information terminal device) such as a smartphone can use many application functions and is highly convenient. Moreover, since such an information terminal device is also excellent in portability, it is easy to disclose various information to a third party through the display screen.

  However, there are many cases in which a part of the information displayed on the display screen includes information that cannot be disclosed to a third party. For example, information that should be kept private from the viewpoint of privacy protection, such as personal information such as the address and e-mail address listed with the e-mail document to be disclosed, portraits of people in the photo, and car license plates It is generally assumed that they are partly included. In addition, there are cases where documents that are disclosed by a company include information that should be hidden, such as information belonging to a trade secret and detailed information on new products.

  Conventionally, if it is a paper-based document or photo, the information that should be kept private is manually sanitized with a magic pen or the like, and is partially unreadable before being published. We were able to solve it with simple measures. However, such measures cannot be applied to electronic documents and photographs. In light of the rapid digitization of information in recent years, it is possible to make a part of the computerized information non-disclosure with the same feeling as applying black paint processing to paper-based documents and photographs. It is hoped that

  A technique relating to such concealment of electronic information is disclosed (Patent Document 1). In the concealment technique described in Patent Document 1, not only a partial area designated for an electronic document including a character code is visually concealed on the display screen, but also a character code corresponding to the concealment area. Is rewritten to data that cannot be deciphered electronically. In this way, it is possible to prevent the decryption by electronic means for the area where the information is visually hidden.

JP 2002-207725 A

  By the way, in the technique described in Patent Document 1, the above-described concealment function needs to be implemented in an application (electronic document viewer) for displaying an electronic document. In other words, the user starts up a dedicated electronic document viewer and displays the electronic document file, and then performs an operation of concealing information using the concealment function implemented in the electronic document viewer. To the third party.

  However, the concealment function based on such a usage mode can be used only for an electronic document that conforms to the file format of the electronic document viewer. For example, when the electronic document viewer described above is an application that displays an electronic document in PDF (Portable Document Format) format, the concealment function implemented in the electronic document viewer is displayed by another application, for example, a Web browser. It cannot be used for HTML (Hyper Text Markup Language) documents.

  In this case, if the Web browser itself has a concealment function that is separately implemented, the user can perform processing for concealing information from the HTML document using the concealment function. Thus, if the concealment function can be implemented for each application to be used, this problem can be solved. However, this method can be said to be extremely inefficient considering the effort spent on implementation in each application. In addition, it is assumed that the operability and specifications of the concealment function implemented for each application are different, which is not preferable from the viewpoint of user convenience. In other words, in the aspect as disclosed in Patent Document 1, all electronic documents and photographs are handled with the same feeling as when a black-based process is applied to a part of a paper-based document or photograph. I can't.

  Accordingly, an object of the present invention is to provide an information terminal device, an image display method, and a program that solve the above-described problems.

  The present invention has been made to solve the above-described problems, and according to a first layer image, a second layer image layered on the first layer image as viewed from the user, and a predetermined application function. An application processing unit for displaying the application image as the first layer image, and a processing unit independent from the application processing unit, wherein the mask image specified based on a predetermined input signal is displayed as the second layer image. An information terminal device comprising: a mask processing unit displayed as

  According to the present invention, in the above-described information terminal device, a first operation detection unit that detects a first operation by a user and outputs a first operation detection signal; a second operation by the user; A second operation detection unit that outputs an operation detection signal, wherein the application processing unit inputs the first operation detection signal and displays the application image displayed as the first layer image in response to the first operation detection signal. The mask processing unit updates the second operation detection signal as the predetermined input signal.

  According to the present invention, in the information terminal device described above, the mask processing unit generates the mask image when the second operation detection unit detects the second operation of moving the display screen in a specific direction. In addition, the mask image is erased when the second operation moving in the direction opposite to the specific direction is detected.

  In the present invention, the application processing unit displays an application image corresponding to a predetermined application function on the first layer image, and a mask processing unit independent from the application processing unit is designated based on a predetermined input signal. An image for masking is displayed on the second layer image, and the second layer image is laminated on the upper layer of the first layer image when viewed from the user, and is displayed among the application images displayed as the first layer image. The image display method is characterized in that a portion corresponding to the mask image displayed as the second layer image is invisible.

  According to another aspect of the present invention, there is provided an information terminal device comprising: a first layer image; and a second layer image stacked on an upper layer of the first layer image as viewed from a user. Application processing means for displaying an image for use as the first layer image, and processing means independent of the application processing means for displaying a mask image designated based on a predetermined input signal as the second layer image It is a program characterized by functioning as mask processing means.

  According to the present invention, it is possible to provide an information terminal device having an information concealment function with high convenience without requiring implementation for each application function.

It is a figure which shows the function structure of the information terminal device by one Embodiment of this invention. It is a figure explaining the structure of the display part by one Embodiment of this invention. It is a 1st figure explaining the function of the mask processing part by one Embodiment of this invention. It is a figure explaining the function of the application process part by one Embodiment of this invention. It is a figure explaining the mode of the display part by one Embodiment of this invention. It is a figure explaining the processing flow of the control part by one Embodiment of this invention. It is a 2nd figure explaining the function of the mask process part by one Embodiment of this invention.

Hereinafter, an information terminal device according to an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a diagram showing a functional configuration of an information terminal device according to an embodiment of the present invention. In this figure, reference numeral 1 denotes an information terminal device.

  The information terminal device 1 is a multifunctional information terminal device that exhibits various functions by executing various installed application programs. The information terminal device 1 according to the present embodiment is a portable information terminal device such as a smartphone or a tablet PC (Personal Computer).

  As shown in FIG. 1, the information terminal device 1 includes a control unit 10, an input unit 11, a display unit 12, and a storage unit 13. The control unit 10 includes an operation detection unit 100, an application processing unit 103, and a mask processing unit 104 therein. Further, the operation detection unit 100 includes a first operation detection unit 101 and a second operation detection unit 102. The display unit 12 has a configuration in which a first layer image 121 and a second layer image 122 are stacked as will be described later.

  The control unit 10 is a general-purpose CPU (Central Process Unit), and is a functional unit that exhibits the various functions described above by reading and executing a predetermined program in a register or the like included in the CPU. .

  The input unit 11 is a touch sensor stacked on a display screen of the display unit 12 described later. The input unit 11 is a touch sensor that employs a so-called capacitance method, and sequentially detects the contact position, range, and the like of the user's fingertip on the display screen. Further, the input unit 11 according to the present embodiment can also detect that the fingertip is in a state of floating a predetermined distance from the display screen.

  The display unit 12 is an image display function unit that visually displays information to the user based on application functions performed in the information terminal device 1. The display unit 12 is a flat panel display such as an LCD (Liquid Crystal Display) and an organic EL (Electro Luminescence) display. As will be described later, the display unit 12 according to the present embodiment displays a first layer image 121 and a second layer image 122 that are two layer images in a virtually stacked state. The display unit 12 according to the present embodiment is configured by a single LCD or the like as hardware, but the display unit 12 is based on a display calculation unit (not shown) provided in the control unit 10 separately. Based on the display process, a function is realized in which the first layer image 121 and the second layer image 122 are virtually stacked and displayed.

  The storage unit 13 is a storage medium that stores various electronic information used in the information terminal device 1. The storage unit 13 is, for example, an HDD (Hard Disk Drive), an SSD (Solid State Drive), or the like.

Next, the functional configuration of the control unit 10 will be specifically described.
The operation detection unit 100 is a functional unit that detects an operation (input operation) input from the user via the input unit 11 and outputs a signal corresponding to the input operation to another functional unit. The operation detection unit 100 according to the present embodiment includes a first operation detection unit 101 and a second operation detection unit 102.

  The first operation detection unit 101 is a functional unit that detects a user's touch operation input via the input unit 11. “Touch operation” refers to various operations performed by bringing the user's fingertip into contact with the display screen of the display unit 12. The “touch operation” here refers to, for example, a touch operation in which only one point on the display screen is touched and released, or a drag operation in which the fingertip is slid while the fingertip is in contact with the display screen. Various operations to be performed are included. The first operation detection unit 101 outputs a first operation detection signal corresponding to the detected touch operation to the application processing unit 103 described later.

  The second operation detection unit 102 is a functional unit that detects a user's hover operation input via the input unit 11. The “hover operation” refers to various operations that are performed in a state where the user's fingertip is lifted from the display screen by a predetermined distance. The “hover operation” here includes, for example, an operation of moving the fingertip while maintaining a state where the fingertip is lifted from the display screen by a predetermined distance. The second operation detection unit 102 outputs a second operation detection signal corresponding to the detected hover operation to the mask processing unit 104 described later.

  The application processing unit 103 is a functional unit for executing the application function based on the application program selected by the user. For example, when the user selects and executes an application program of the electronic document viewer, the application processing unit 103 displays the contents of the electronic document that the user intends to view on the display unit 12 or performs the touch operation described above. The displayed contents are updated accordingly. The application processing unit 103 performs a communication process for displaying or creating a mail or transmitting / receiving a mail, for example, when executing a mail transmission / reception application function. That is, the application processing unit 103 is a processing unit for realizing various application functions installed in the information terminal device 1. The application processing unit 103 according to the present embodiment outputs an instruction to display various application images (for example, the contents of the electronic document described above) according to the application function to be executed as a first layer image 121 described later.

  The mask processing unit 104 is a functional unit for displaying a mask image specified based on the input signal (second operation detection signal) from the second operation detection unit 102 described above. The mask processing unit 104 outputs an instruction to display the designated mask image as a second layer image described later.

The first layer image 121 is a layer image in which an application image is represented based on a display instruction from the application processing unit 103. The user grasps information while visually recognizing the application image displayed as the first layer image 121 or operates the information terminal device 1.
The second layer image 122 is a layer image in which a mask image is represented based on a display instruction from the mask processing unit 104. In the present embodiment, the second layer image 122 is displayed on the upper layer of the first layer image 121 (described later) by display processing by the control unit 10 (display calculation unit not shown). Accordingly, the portion of the first layer image 121 that is the application image that overlaps with the mask image is covered with the second layer image 122 that is the mask image, and thus is invisible in this portion.

FIG. 2 is a diagram illustrating a configuration of a display unit according to an embodiment of the present invention.
As shown in FIG. 2, the display unit 12 according to the present embodiment virtually displays an image stacked so that the first layer image 121 and the second layer image 122 overlap each other. The second layer image 122 is displayed so as to come to the upper layer of the first layer image 121 as viewed from the user. That is, the user visually recognizes the application image displayed on the first layer image 121 through the second layer image 122.

  Therefore, when a mask image is displayed in a predetermined area as the second layer image 122, a part of the application image of the first layer image 121 corresponding to the area where the mask image is displayed is the mask. As a result, the user image cannot be visually recognized by the user.

  For example, as shown in FIG. 2, consider a case where a predetermined application image is displayed on the first layer image 121 and a predetermined mask image is displayed as the second layer image 122 (right side in FIG. 2). In this case, from the viewpoint of the user, a part of the application image displayed as the first layer image 121 is masked by the mask image displayed as the second layer image 122 on the display screen. Will be displayed (left of FIG. 2).

  As described above, the information terminal device 1 according to the present embodiment is characterized in that the application image based on the application function to be executed and the mask image for the mask process are properly used as separate layer images. In this way, even if any application function is used, by executing a mask function (information concealment function) independent of the application function, desired information can be obtained regardless of the application function itself. Can be concealed.

FIG. 3 is a first diagram illustrating the function of the mask processing unit according to the embodiment of the present invention.
As shown in FIG. 3, the mask processing unit 104 according to the present embodiment displays a mask image as the second layer image 122 based on the second operation detection signal corresponding to the “hover operation” by the user. For example, as shown on the left side of FIG. 3, it is assumed that the user performs a hover operation from “position A” to “position B” on the display screen. Then, the mask processing unit 104 inputs a second operation detection signal corresponding to the hover operation from the second operation detection unit 102, and displays a mask image as the second layer image 122 in the area specified by the signal ( FIG. 3 right).
In this case, it is assumed that the application processing unit 103 performs processing only in accordance with the “touch operation” of the user, and does not perform any processing in accordance with the “hover operation”.

FIG. 4 is a diagram illustrating functions of the application processing unit according to the embodiment of the present invention.
As shown in FIG. 4, the application processing unit 103 according to the present embodiment updates the application image based on the first operation detection signal corresponding to the “touch operation” by the user. For example, it is assumed that the user performs a touch operation (drag operation) from “position A” to “position B” on the display screen as shown in the left of FIG. Then, the application processing unit 103 inputs a first operation detection signal corresponding to the touch operation (drag operation) from the first operation detection unit 101, and updates the application display image displayed as the first layer image 121. (Figure 4 right). Specifically, the application processing unit 103 performs a process of sliding the application display image by the amount of the user's drag operation.
In this case, it is assumed that the mask processing unit 104 performs processing for displaying the above-described mask image exclusively in response to the user's “hover operation”, and does not perform any processing in accordance with the “touch operation”. And

  As described with reference to FIGS. 3 and 4, the information terminal device 1 according to the present embodiment performs the operation (touch operation) for using the application function for the first layer image 121 and the second layer image 122. The operation for mask processing (hover operation) is separately used. By doing so, it becomes possible for the user to easily and intuitively use the normal application function and the mask function properly.

FIG. 5 is a diagram illustrating a state of the display unit according to the embodiment of the present invention.
For example, assume that the application function being executed is a mail application. At this time, the first layer image 121 displays the contents of the mail as an application image based on the mail application. Here, when the user of the information terminal device 1 wants to disclose the contents of the mail to a third party, first, the contents are to be made private (for example, personal address, mail address, telephone number, etc.). Mask processing is performed. Specifically, the user performs a hover operation so that the area where the information is described is masked, and displays the mask image as the second layer image 122 (FIG. 5). Note that the mail application itself is not operated in response to the hover operation. After the user performs such a masking process, the user may publish the contents of the mail to a third party.
Further, the application processing unit 103 can perform normal processing regardless of this state even when a part of the information is hidden as shown in FIG. That is, the user can edit and send mail by performing a predetermined touch operation.

FIG. 6 is a diagram illustrating a processing flow of the control unit according to the embodiment of the present invention.
Hereinafter, the processing flow of the control unit 10 according to the present embodiment will be described step by step with reference to FIG. First, it is assumed that the user of the information terminal device 1 designates a predetermined application program (for example, a mail application). Then, the application processing unit 103 performs processing for starting an application function based on the application program (step S1). Subsequently, the application processing unit 103 displays an application image based on the application function as the first layer image 121 with the activation of the application function (step S2).

  Subsequently, the operation detection unit 100 starts detecting whether or not various operations from the user are input via the input unit 11 (step S3). If the operation detection unit 100 does not detect an operation by the user such as a touch operation or a hover operation, the operation detection unit 100 returns to step S3 and continues the detection process (step S4 → N). On the other hand, when the operation detection unit 100 detects any operation, the operation detection unit 100 proceeds to the following process (step S4 → Y).

  The operation detection unit 100 determines whether the operation input via the input unit 11 is a “hover operation” or a “touch operation”. When the input operation is “hover operation” (step S5 → Y), the second operation detection unit 102 outputs a second operation detection signal corresponding to the hover operation. Next, the mask processing unit 104 that has received the second operation detection signal acquires a region where the hover operation is detected based on the signal (step S6). Then, the mask processing unit 104 displays a mask image in the region where the hover operation is detected as the second layer image 122 (step S7). Through this series of processing of the control unit 10, the user can partially hide information by performing a hover operation on the input unit 11 regardless of the application function being executed.

  On the other hand, when the input operation is a “touch operation” (step S5 → N), the first operation detection unit 101 outputs a first operation detection signal corresponding to the touch operation. And the application process part 103 which input the said 1st operation detection signal performs the application process based on the signal, and the update process of the image for applications displayed as the 1st layer image 121 is performed. By this process of the control unit 10, the user can operate the application function being executed regardless of the process of hiding information by performing a touch operation on the input unit 11.

As described above, when the user of the information terminal device 1 according to the present embodiment wants to conceal part of the information displayed on the display unit 12, the user can quickly and easily perform the masking process. The information that should be disclosed to the public and the information that should be kept private can be flexibly selected on the spot. In other words, the user can perform mask processing on all digitized documents, photos, and the like with the same feeling as performing black painting processing on a part of a paper-based document or photo.
As described above, according to the present invention, it is possible to provide an information terminal device having a highly convenient mask function without requiring implementation for each application function.

By the way, the mask processing unit 104 of the information terminal device 1 according to the present embodiment may further have the following functions.
In the second operation detection unit 102, the mask processing unit 104 according to the present embodiment moves the display screen in a specific direction, for example, from the left side (position A) to the right side (position B) as shown in FIG. Only when an operation is detected, a mask image may be generated in a region where the hover operation is detected.

  For example, it is assumed that the input unit 11 (touch sensor) can detect coordinate information of the X coordinate from the left side to the right side in FIG. 3 and the coordinate information of the Y coordinate from the lower side to the upper side. In this case, the mask processing unit 104 compares the value of the X coordinate in the coordinate information in which the hover operation is detected at each detection timing, and when the numerical value changes in a direction of increasing, A process of displaying a mask image is performed (in this case, information on the Y coordinate is not considered in determining whether to display the mask image). In this way, by providing a certain restriction on the mask processing operation, an effect of suppressing display of an unintended mask image due to erroneous recognition can be obtained.

FIG. 7 is a second diagram illustrating the function of the mask processing unit according to an embodiment of the present invention.
The mask processing unit 104 is displayed when a hover operation moving from the right side (position B) to the left side (position A) of the display screen is detected, for example, as shown in FIG. The mask image may have been erased.

  For example, in the case of the above example, the mask processing unit 104 compares the X coordinate value of the coordinate information in which the hover operation is detected at each detection timing, and the numerical value changes in a decreasing direction. Then, a process for erasing the mask image in that region is performed. In this way, the user can easily and intuitively delete or change the mask image.

  In the mask image display / erasure function corresponding to the direction of the hover operation described above, the mask processing unit 104 refers to the increase / decrease of the Y coordinate instead of the increase / decrease of the X coordinate, thereby displaying / erasing the mask image. May be performed. Further, the mask processing unit 104 detects the posture (vertical holding, horizontal holding, etc.) of the information terminal device 1 when the user is using the information terminal device 1, and increases or decreases the X axis accordingly. Or to refer to the increase / decrease of the Y-axis.

  Further, the mask processing unit 104 according to the present embodiment may have a function of requesting a password from the user when detecting an operation for deleting the displayed mask image. By doing in this way, the information of the concealed area | region can be prevented from being browsed freely by operation of a third party. In addition, the information terminal device 1 may have a function of setting whether or not to request a password when the user tries to delete the mask image.

  In the above description, the application function displayed as the first layer image 121 is a viewer or e-mail application for viewing an electronic document. However, in the information terminal device 1 according to the present embodiment, It is not limited to these aspects. That is, the application function executed by the application processing unit 103 may be, for example, an image viewer that displays a still image such as a photograph, or a moving image reproduction application that reproduces a moving image.

  Moreover, although the information terminal device 1 by this embodiment was demonstrated on the assumption that it is a high functional portable terminal device, such as a smart phone and a tablet, the information terminal device 1 by this embodiment is not limited to this aspect. That is, the information terminal device 1 may be a general-purpose desktop PC or notebook PC.

  Further, the information terminal device 1 according to the present embodiment employs a touch sensor as the input unit 11, and uses “touch operation” as the first operation and “hover operation” as the second operation. However, the information terminal device 1 is not limited to this mode. For example, the information terminal device according to the present embodiment may employ a mouse that is generally used as the input unit 11. And said 1st operation and 2nd operation may be defined by the predetermined | prescribed drag operation which combined pressing operation of the button with which the said mouse | mouth was equipped.

  In the above description, the touch operation and the hover operation are defined as operations performed by the user's fingertip. However, the information terminal device 1 according to the present embodiment is not limited to this mode. That is, the information terminal device 1 according to the present embodiment may perform touch operation on the touch sensor and input of the hover operation using a dedicated device such as a touch pen. In addition, an operation with a fingertip may be properly used as an operation for a normal application function, and an operation with a touch pen may be used as an operation for mask processing.

  In the above description, the display unit 12 according to the present embodiment is configured by a single LCD or the like, and is virtually based on the display processing of the display calculation unit provided in the control unit 10 separately. Although described as a mode in which the first layer image 121 and the second layer image 122 are stacked and displayed, the information terminal device 1 according to another embodiment of the present invention is not limited to this mode. That is, the information terminal device 1 according to the other embodiment includes a two-layer display panel in which the display unit 12 is physically provided, and independently displays an application image and a mask image on each display panel. An aspect may be sufficient.

  Note that the information terminal device 1 described above has a computer system therein. Each process of the information terminal device 1 described above is stored in a computer-readable recording medium in the form of a program, and the above-described processing is performed by the computer reading and executing the program. Here, the computer-readable recording medium refers to a magnetic disk, a magneto-optical disk, a CD-ROM (Compact Disk Read Only Memory), a semiconductor memory, or the like. Alternatively, the computer program may be distributed to the computer via a communication line, and the computer that has received the distribution may execute the program.

DESCRIPTION OF SYMBOLS 1 ... Information terminal device 10 ... Control part 100 ... Operation detection part 101 ... 1st operation detection part 102 ... 2nd operation detection part 103 ... Application process part 104 ... Mask Processing unit 11 ... input unit 12 ... display unit 121 ... first layer image 122 ... second layer image 13 ... storage unit

Claims (5)

The first layer image,
A second layer image that is layered on top of the first layer image as seen from the user;
An application processing unit that displays an image for application corresponding to a predetermined application function as the first layer image;
A processing unit that is independent from the application processing unit, and displays a mask image specified based on a predetermined input signal as the second layer image;
An information terminal device comprising: A first operation detection unit that detects a first operation by a user and outputs a first operation detection signal;
A second operation detection unit that detects a second operation by the user and outputs a second operation detection signal;
With
The application processing unit
The first operation detection signal is input, and the application image displayed as the first layer image is updated accordingly.
The mask processing unit
The information terminal device according to claim 1, wherein the second operation detection signal is input as the predetermined input signal. The mask processing unit
In the second operation detection unit, when the second operation for moving the display screen in a specific direction is detected, the second operation for generating the mask image and moving in the direction opposite to the specific direction is generated. The information terminal device according to claim 2, wherein the mask image is erased when the image is detected. The application processing unit displays an application image corresponding to a predetermined application function as a first layer image,
A mask processing unit independent from the application processing unit displays a mask image specified based on a predetermined input signal as a second layer image,
The second layer image is stacked on the upper layer of the first layer image when viewed from the user, and the mask image displayed as the second layer image among the application images displayed as the first layer image An image display method characterized in that a portion corresponding to the is made invisible. The first layer image,
A second layer image that is layered on top of the first layer image as seen from the user;
A computer of an information terminal device comprising:
Application processing means for displaying an image for application corresponding to a predetermined application function as the first layer image;
Mask processing means for displaying a mask image specified based on a predetermined input signal as the second layer image, which is processing means independent of the application processing means;
A program characterized by functioning as

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