JP2009300884A - Electronic apparatus, display control method thereof, computer readable program for executing the display control method on computer, and recording medium recorded with the program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that it has conventionally taken time and effort to perform an operation of switching among a plurality of display screens in a display part because it is necessary to depress an operation key. <P>SOLUTION: In the electronic apparatus, a relative angle between a photographing direction of a camera of the electronic apparatus and a direction in which a target to be photographed is located is changed at a prescribed angle or larger in a prescribed direction, and a second registered image designated by a user is photographed subsequently to a first registered image designated by the user, without depressing a camera key within a prescribed time, whereby alternative display is made possible by switching a display state of the display part. The electronic apparatus detects the image photographed by the camera in this manner, so that information is easily displayed in the display part in at least two display state to improve the operability. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  According to the present invention, in an electronic apparatus having a photographing unit, a display state displayed on the display unit without a user operating the operation unit by making a determination based on a subject image obtained by the photographing unit is displayed as a first image. The present invention relates to an image display state switching technique that enables switching from a state to a second image display state.

  In a conventional mobile phone device, a display screen of one display unit is divided and displayed, and a user can operate a corresponding operation unit according to the divided display screen to display a desired display screen ( For example, see Patent Document 1).

  In addition, in the conventional portable small-sized information device, the display screen of one display unit is divided and displayed, and different information is displayed while automatically shifting at a certain time with respect to one of the divided screens. (For example, refer to Patent Document 2).

Further, in a conventional portable small-sized information device, at least two screens are provided for one display unit by providing a slit function in the display unit and displaying a plurality of different screens depending on the viewing angle of the user with respect to the display unit. The above can be displayed at the same time, and is displayed in the dual view mode based on the measurement result of the inclination sensor that measures the inclination of the portable electronic device relative to the predetermined surface or the acceleration sensor that measures the acceleration of the portable electronic device. One of the plurality of screens can be automatically selected to be an active screen, and the other screen to be displayed can be an inactive screen (see, for example, Patent Document 3).
JP 2000-10702 A Japanese Patent Laid-Open No. 11-15629 (FIGS. 2 to 4) JP 2007-206108 A

  In a conventional electronic device, one display screen is displayed on one display unit, and a user displays a desired display screen using an operation unit according to the display screen. In particular, on the linked screen, such as the received mail list screen in mail mode and the individual received mail screen selected from the list screen, the user operates the operation unit on both screens on the display unit. Were displayed alternately. The user has repeatedly performed the same operation to display a desired received mail screen on the display unit. Therefore, there is a problem for the user that repeated operation of the operation unit is troublesome.

  Further, in a portable device such as a cellular phone, the size of the display unit is limited by the size of the entire portable device, and thus the amount of data displayed on the display unit is limited. Therefore, it is necessary to display all data amounts to be displayed by shifting the display screen such as scroll display by the user's operation, and there is a problem in convenience for the user.

  According to the present invention, in an electronic apparatus having a photographing unit, a display state displayed on the display unit without a user operating the operation unit by making a determination based on a subject image obtained by the photographing unit is displayed as a first image. An object is to enable switching from the state to the second image display state to solve the above-described problems.

An electronic device according to an aspect of the present invention is
Display means for displaying an image;
Photographing means for photographing the subject;
An image display unit that controls to display a predetermined image on the display unit when the image capturing unit is activated and can be controlled to display in either the first image display state or the second image display state. Display control means;
Determination condition storage means for storing a determination condition for switching from the first image display state to the second image display state based on a subject image obtained by the photographing means;
A determination unit that determines whether or not a subject image obtained by the shooting unit when the user uses the shooting unit matches a determination condition stored in the determination condition storage unit;
The image display control unit includes a display state switching unit that switches from the first image display state to the second image display state on condition that the determination unit determines that the determination condition is met.

  According to the present invention, in the electronic device having the photographing unit, the user can operate the subject image by determining whether or not the subject video obtained by the photographing unit matches the determination condition stored in the determination condition storage unit. The display state of the display means can be switched from the first image display state to the second image display state without operating the unit. The user can switch the display state displayed on the display means without operating the operation unit, based on the subject video photographed by the photographing means according to the user's intention. Note that the image here is a general term for images including not only an image composed of image data but also an image composed of character data.

Preferably, the electronic device is
A judgment condition video accepting unit for accepting a judgment condition video designated by a user for use as the judgment condition from the video photographed by the photographing unit;
The determination condition storage means stores the determination condition video received by the determination condition video reception means as an image used for the determination condition,
The determination means satisfies the determination condition depending on whether or not a subject video obtained by the user using the shooting means includes a determination condition video stored in the determination condition storage means. It is determined whether or not to do.

  According to the present invention, when the subject video obtained by the photographing unit includes a user-specified determination condition video, the determination unit determines that the determination condition is met, and the display state switching unit determines the display state of the display unit. The first image display state is switched to the second image display state. That is, the display state of the display means can be switched according to the user's intention.

Preferably, the electronic device is
The determination condition storage means stores, as the determination condition, a specific change mode in which the subject video obtained by the photographing means changes,
The determination unit is configured to determine whether the subject image obtained by the shooting unit when the user uses the shooting unit has changed in the specific change mode stored in the determination condition storage unit. It is determined whether or not the determination condition is met.

  According to the present invention, when the subject image obtained by the photographing unit changes in a specific change mode stored in the determination condition storage unit, the determination unit determines that the determination condition is met, and the display state switching unit Switches the display state of the display means from the first image display state to the second image display state.

Preferably, the electronic device is
Judgment condition video accepting means for accepting a judgment condition video designated by a user to be used as the judgment condition from among the videos photographed by the photographing means;
A comparative shooting video specifying unit that specifies one of the shooting videos shot by the shooting unit as the subject included in the determination condition video as a comparative shooting video;
The determination condition storage means stores the determination condition video received by the determination condition video reception means and the comparative shooting video specified by the comparative shooting video specifying means as the video used for the determination condition,
The determination means includes
Due to the displacement of the photographing direction of the photographing means when photographing the comparative photographing image with respect to the photographing direction of the photographing means when photographing the judgment condition video, the photographing direction when photographing the comparative photographing video photographs the judgment condition video. Shooting direction determination means for determining whether or not the predetermined shooting direction is displaced from the shooting direction at the time,
Due to the displacement of the shooting direction of the shooting means when shooting the comparative shooting video with respect to the shooting direction of the shooting means when shooting the judgment condition video, the shooting angle when shooting the comparative shooting video is when shooting the specific video A shooting angle determination means for determining whether or not a predetermined angle or more is displaced from the shooting angle of,
It is determined by the shooting direction determination means that the shooting direction when shooting the comparatively shot video is displaced in a predetermined direction from the shooting direction when shooting the judgment condition video, and the comparative shooting is determined by the shooting angle determination means. It is determined whether or not the determination condition is met depending on whether or not it is determined that the shooting angle at the time of shooting the video is displaced by a predetermined angle or more from the shooting angle at the time of shooting the video.

  According to this invention, it is determined by the shooting direction determination means that the shooting direction at the time of shooting the comparatively shot video is displaced in a predetermined direction from the shooting direction at the time of shooting the judgment condition video, and is compared by the shooting angle determination means. When it is determined that the shooting angle at the time of shooting the captured video is displaced by a predetermined angle or more from the shooting angle at the time of shooting the video for the determination condition, the determination means stores the determination condition storage means for the subject video obtained by the shooting means The display state switching means switches the display state from the first image display state to the second image display state.

Preferably, the electronic device is
Undisplayed image presence detecting means for detecting whether or not undisplayed image data that cannot be displayed on the display means exists in the image displayed on the display means in the first image display state. In addition,
When the non-displayed image presence detecting unit detects the presence of the non-displayed image data, the display state switching unit switches to a state of displaying an image of the non-displayed image data as the second image display state. .

  According to the present invention, the user can easily move the hand holding the electronic device or change the subject image obtained by the photographing unit with a simple operation in which the user moves toward the photographing unit of the electronic device. The display state switching means is operated to display a state (second image display state) where the image is displayed on the display means (second display state). (Image display state).

Preferably, the electronic device is
Undisplayed image presence detecting means for detecting whether or not undisplayed image data that cannot be displayed on the display means exists in the image displayed on the display means in the first image display state. In addition,
When the non-displayed image presence detecting unit detects the presence of the non-displayed image data, the display state switching unit sets the display unit to a scroll display to display the non-displayed image data as the second image display state. Is switched to a display state that enables scroll display.

  According to the present invention, the subject video obtained by the photographing unit matches the determination condition stored in the determination condition storage unit, and the image displayed on the display unit is not completely displayed on the display unit. When there is display image data, the display screen of the display means is set to the scroll display state. For this reason, the user can view the image data including the undisplayed image data as continuous information.

Preferably, the electronic device is
Display state switching operation means for switching from the first image display state to the second image display state by a user operation;
It further comprises switching prohibition designation receiving means for accepting prohibition designation by the user of the switching operation of the display state switching means.

  According to the present invention, the switching operation of the display state switching unit can be prohibited by the switching prohibition designation receiving unit, and the display state of the display unit is changed from the first image display state to the second by the user operating the display state switching operation unit. It becomes possible to switch to the image display state. For this reason, under a situation where the user does not intend, but the user is inadvertently moving the hand holding the electronic device, the switching operation malfunctions, and the determination by the determination unit based on the subject image obtained by the photographing unit is likely to be erroneous. For example, it is possible to prevent a malfunction of the switching operation under a condition in which a plurality of subjects of the same type as the subject of the determination condition video are present in the subject video.

Preferably, the electronic device is
Image editing operation means for editing the data content of the image displayed in the first image display state by a user operation;
Image editing operation detection means for detecting whether or not the user is editing the data content of the image displayed in the first image display state using the image editing operation means;
When the image editing operation detecting unit detects that editing is in progress, the image editing operation detecting unit further includes a switching prohibiting unit that prohibits the switching operation of the display state switching unit until the image editing operation detecting unit detects the end of editing.

  According to the present invention, for example, when the user operates the image editing operation means while looking at the display screen and performs a predetermined operation such as editing the mail text, the switching operation of the display state switching means is prohibited. . As a result, even if the direction of the electronic device relative to the user is carelessly moved, the display state switching means does not operate, and an erroneous operation unintended by the user can be prevented.

Preferably, the electronic device is
A switching prohibition confirmation unit for confirming whether the switching operation of the display state switching unit is prohibited;
The display state switching unit further switches from the first image display state to the second image display state after further confirming that the switching operation of the display state switching unit is not prohibited by the switching prohibition confirmation unit.

  According to the present invention, although the user does not intend, the switching operation malfunctions when the user inadvertently moves the hand holding the electronic device, and the determination unit makes an error based on the subject image obtained by the photographing unit. Under an easy situation, for example, it is possible to prevent a malfunction of the switching operation under a condition in which a plurality of subjects of the same type as the subject of the determination condition video are present in the subject video.

An electronic device according to another aspect of the present invention is a portable type that can be held and operated.
Preferably, the photographing means includes
Located near the display means,
The direction of the user who browses the display means is the direction to be imaged.

  According to these inventions, the electronic device is portable and can be operated by hand, the photographing means is located in the vicinity of the display means, and the direction of the user viewing the display means is determined as the direction to be photographed by the photographing means. Therefore, if the user holds the electronic device in his hand and browses the display means of the electronic device, the photographing means of the electronic device will naturally shoot the face of the user. For example, if the user holds the electronic device in the right hand and directs the display means of the electronic device toward the user, that is, if the user's direction is taken as the shooting direction of the photographing means, the user's position is changed. The electronic device is displaced in the right direction by drawing an arc with the radius at the position of the right hand with the electronic device at the center. For this reason, the photographing means of the electronic device photographs the right side portion of the user's face.

  For example, the first specific image is a captured image of the front part of the user's face (see FIG. 5), and the second specific image is a captured image of the face from the front right of the user (the predetermined angle is θ = 30 °). (See FIG. 6). Then, the specific change mode stored in the determination condition storage means is taken by the photographing means following the first specific video within a predetermined time (for example, 1 second).

  Hold the electronic device in the right hand and use the user's direction as the shooting direction of the shooting means, from right in front of the user's face to the right front of the face (when the predetermined angle is 30 °, 30 ° or more, for example, FIG. If the camera is swung to the right until θ = 45 ° (see FIG. 6), the image taken from the front of the user's face (see FIG. 5) to the right front of the user's face (see, for example, FIG. 6 when θ = 45 °). The image is taken by the photographing means. For this reason, since the second specific video is captured by the imaging unit following the first specific video within a predetermined time, the determination unit determines that the determination condition stored in the determination condition storage unit is met.

  In addition, hold the electronic device in the right hand and hold the electronic device in the right hand instead of shaking the display means of the electronic device toward the user so that the user's direction is the shooting direction of the shooting means. This is the same even if the user changes the direction to the left while the display unit of the electronic device is directed toward the user while still.

A display control method for an electronic device according to still another aspect of the present invention,
A display control method for an electronic device comprising a display means for displaying an image and a photographing means for photographing a subject,
The step of performing a control to display a predetermined image on the display means in the photographing ready state in which the photographing means is activated, and the display controllable image in either the first image display state or the second image display state A display control step;
A determination condition storing step for storing a determination condition for switching from the first image display state to the second image display state based on a subject image obtained by the photographing unit;
A determination step of determining whether or not a subject image obtained by the shooting means by using a shooting means by a user matches a determination condition stored in the determination condition storage step,
The image display control step includes a display state switching step of switching from the first image display state to the second image display state on condition that the determination step determines that the determination condition is met.

  According to the present invention, in the electronic apparatus having the photographing unit, the user can operate the subject image by determining whether or not the subject video obtained by the photographing unit matches the determination condition stored in the determination condition storing step. The display state of the display means can be switched from the first image display state to the second image display state without operating the unit. The user can switch the display state displayed on the display means without operating the operation unit, based on the subject video photographed by the photographing means according to the user's intention.

A computer-readable program according to still another aspect of the present invention is provided.
A computer-readable program that causes a computer to execute a display control method for an electronic device that includes a display unit that displays an image and a photographing unit that captures a subject.
The step of performing a control to display a predetermined image on the display means in the photographing ready state in which the photographing means is activated, and the display controllable image in either the first image display state or the second image display state A display control step;
A determination condition storing step for storing a determination condition for switching from the first image display state to the second image display state based on a subject image obtained by the photographing unit;
The computer executes a determination step for determining whether or not the subject image obtained by the shooting means matches the determination condition stored in the determination condition storage step when the user uses the shooting means. ,
In the image display control step, a display state switching step for switching from the first image display state to the second image display state is performed on the computer on the condition that the determination step determines that the determination condition is met. Let it run.

  According to the present invention, in the electronic apparatus having the photographing unit, the user can operate the subject image by determining whether or not the subject video obtained by the photographing unit matches the determination condition stored in the determination condition storing step. The display state of the display means can be switched from the first image display state to the second image display state without operating the unit. The user can switch the display state displayed on the display means without operating the operation unit, based on the subject video photographed by the photographing means according to the user's intention.

A recording medium according to still another aspect of the present invention,
A recording medium that records a computer-readable program that causes a computer to execute a display control method of an electronic device that includes a display unit that displays an image and a photographing unit that captures a subject.
The step of performing a control to display a predetermined image on the display means in the photographing ready state in which the photographing means is activated, and the display controllable image in either the first image display state or the second image display state A display control step;
A determination condition storing step for storing a determination condition for switching from the first image display state to the second image display state based on a subject image obtained by the photographing unit;
The computer executes a determination step for determining whether or not the subject image obtained by the shooting means matches the determination condition stored in the determination condition storage step when the user uses the shooting means. ,
In the image display control step, a display state switching step for switching from the first image display state to the second image display state is performed on the computer on the condition that the determination step determines that the determination condition is met. Record a computer-readable program to be executed.

  According to the present invention, in the electronic apparatus having the photographing unit, the user can operate the subject image by determining whether or not the subject video obtained by the photographing unit matches the determination condition stored in the determination condition storing step. The display state of the display means can be switched from the first image display state to the second image display state without operating the unit. The user can switch the display state displayed on the display means without operating the operation unit, based on the subject video photographed by the photographing means according to the user's intention.

  In the present invention, in an electronic apparatus having a photographing unit, the user can select the operation unit by determining whether or not the subject video obtained by the photographing unit matches the determination condition stored in the determination condition storing step. Without the operation, the display state of the display means can be switched from the first image display state to the second image display state. The user can switch the display state displayed on the display means without operating the operation unit, based on the subject image photographed by the photographing means according to the user's intention, and the screen displayed on the display means becomes the active screen .

  Further, when the switching operation prohibiting means is further provided, it is possible to prevent a malfunction of the switching operation not intended by the user.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention can be applied to an arbitrary electronic device having a display screen such as a TV, a PC (Personal Computer), a PIC (Personal Intelligent Communicator), an electronic camera, a game device, and a car navigation system. As a form, the foldable mobile phone 1 will be described. In the following, a foldable mobile phone is shown, but the present invention is not limited to this form. For example, a straight-type mobile phone may be used.

<First Embodiment>
Hereinafter, a first embodiment of the present invention will be described in detail with reference to FIGS. First, FIG. 1 shows the lid 4 and the main body 5 in which the operation unit 15, the display unit 14, the photographing unit 17 and the like appear in the state in which the folding mechanism unit 6 of the mobile phone 1 according to the first embodiment of the present invention is opened. It is the external view seen from the inside. FIG. 2 is a schematic functional block diagram illustrating the electrical configuration of the mobile phone 1. FIG. 3 is a schematic functional block diagram for explaining the image display control means 111 provided in the control unit 11 for controlling the display on the display unit 14.

  As shown in FIG. 1, the speaker 2 is disposed at the upper center inside the lid portion 4 having the rectangular display portion 14 of the mobile phone 1, and the photographing portion 17 browses the display surface of the display portion 14 near the speaker 2. The direction of the user who performs is set as the direction to be imaged. The microphone 3 is disposed at the lower center inside the main body 5 having the operation unit 15. The operation portion 15 is a portion enclosed by a square inside the main body portion 5 and occupies most of the area inside the main body portion 5. The operation unit 15 includes a center key 151 for making a decision, a camera key 152 for activating a camera function, a power key 153 for turning on / off the power, a mail key 154 for activating a mail function, a return key 157, a center key A cross key 155 for pointing in the directions of up, down, left, and right around 151, a numeric keypad 156 for inputting numbers and characters, and the like are configured.

  In order to photograph a subject (a subject to be photographed) using the photographing unit 17, the camera function 152 is depressed to activate the camera function, and the subject (a subject to be photographed) is confirmed on the display unit 14. The center key 151 of the operation unit 15 is pressed. In the state where the camera function is activated, the subject (object to be photographed) photographed by the photographing unit 17 is displayed on the display unit 14.

  As shown in FIG. 2, the mobile phone 1 of the first embodiment mainly includes a control unit 11, a memory 12, a display driver unit 13, a display unit 14, an operation unit 15, a backlight 16, a photographing unit 17, and a communication control unit. 18, a wireless unit 19, and an antenna 20.

  The control unit 11 controls the operation of each part constituting the mobile phone 1, and controls, for example, the memory 12, the display driver unit 13, the backlight 16, the imaging unit 17, the communication control unit 18, and the like. The control unit 11 includes an image display control unit 111 and a mode switching unit 117.

  The memory 12 is a readable / writable RAM (Random Access Memory), and includes, for example, a work memory and a nonvolatile memory. In the memory 12, for example, a phone book file, a schedule file, an e-mail file, and the like are stored. In the phone book file, personal information data such as name, phone number, and mail address in the phone book search function is stored. In the schedule file, schedule information data such as a schedule and the name of the other party are stored. In the e-mail file, received mail data, transmitted mail data, and the like are stored. The memory 12 also stores various received data received via the antenna 20 and the like, for example, image data, music data, character data, and the like. On the other hand, although not shown in FIG. 2, the mobile phone 1 also has a memory composed of a read-only ROM (Read Only Memory), and image data and music data set in advance are stored at the time of shipment. ing.

  The control unit 11 transmits a control signal to the display driver unit 13 and transmits character data and image data stored in the memory 12 to the display driver unit 13. The display driver unit 13 applies a driving voltage to each image electrode of the display unit 14 in accordance with character data and image data to be displayed on the display unit 14. The display unit 14 is realized by a liquid crystal display, an EL (Electro Luminescence) display, or the like, and displays an image based on character data and image data sent via the display driver unit 13. As described above, the operation unit 15 includes the numeric keypad 156 for inputting numbers and characters.

  The backlight 16 includes a light emitting diode that is a light emitting element, and illuminates the display unit 14 from the back. Control of turning on / off the backlight 16 and adjusting brightness are performed by the control unit 11. The backlight 16 may be configured to be turned on until a predetermined operation for turning off the light is performed by the user, or may be configured to be turned off when a predetermined time elapses after being turned on.

  The control unit 11 includes an image display control unit 111 that controls screen display and a mode switching unit 117 that switches various modes included in the mobile phone 1. The image display control unit 111 will be described in detail later.

  The imaging unit 17 includes a solid-state imaging device such as a CMOS image sensor (Complementary Metal Oxide Semiconductor Image Sensor) and a CCD image sensor (Charge Coupled Device Image Sensor).

  The antenna 20 transmits and receives voice data, character data, image data, and the like when performing wireless communication with a base station via radio waves. The wireless unit 19 demodulates data received from the base station via the antenna 20 based on a predetermined communication protocol, and character data and image data sent from the communication control unit 18 during transmission. Etc. are modulated and amplified, and transmitted to the base station via the antenna 20. The communication control unit 18 stores the image data demodulated by the wireless unit 19 in the received data in the memory 12 via the control unit 11. Further, the communication control unit 18 sends character data or the like in the received data to the memory 12 based on an instruction from the control unit 11.

  FIG. 3 is a schematic functional block diagram for explaining the image display control means 111 provided in the control unit 11 for controlling the display on the display unit 14. As shown in FIG. 3, the image display control unit 111 includes a specific video designating unit 112, a comparative captured video specifying unit 113, a specific subject displacement determining unit 114, a display state switching unit 115, and a display state switching prohibiting unit 116.

  The specific video designation unit 112 included in the image display control unit 111 includes a specific video designation reception unit 1121 and a video registration unit 1122. The user designates one of the captured images captured by the capturing unit 17 as a specific subject, that is, a specific image. The user designates one of the captured images taken by the user as a specific image by operating a predetermined key of the operation unit 15. The specific video designation receiving unit 1121 receives the specific video designation by the user, and the video registration unit 1122 registers one of the photographed videos as the specific video in response to the reception signal.

  The user usually holds the mobile phone 1 and operates the operation unit 15 to view the display unit 14. As shown in FIG. 1, the photographing unit 17 is installed immediately above the display unit 14, and the photographing direction is the direction of the user viewing the display unit 14. When the mobile phone 1 is held in the hand and the photographing mode is set, the user's face is photographed. Therefore, a user's face is usually registered as a specific subject, that is, a specific video.

  The specific subject displacement determination unit 114 determines in what direction and how much the angular displacement of the comparative video image specified by the comparative video image specifying unit 113 is taken from the shooting position of the specific video. Since the shooting position of the comparison shooting image specified by the comparison shooting image specifying unit 113 is used to determine how much and in what direction the angle of the shooting position of the comparison shooting image is shifted from the shooting position of the specific shooting image, the comparison shooting image is the same subject as the specific shooting image That is, it is required to be a photographed image of the user's face.

  The comparative captured video specifying unit 113 included in the image display control unit 111 includes a captured video determination unit 1131 and a captured video stop state determination unit 1132. The captured video determination unit 1131 determines whether the image captured by the imaging unit 17 is the same subject as the specific video specified and registered by the user. The photographed video stop state determination unit 1132 determines whether or not the movement of the image captured by the photographing unit 17 is in a substantially stopped state for a predetermined time (for example, 0.5 seconds), that is, a state regarded as a stopped state. To do.

  Here is the important point. Normally, when the image capturing unit 17 captures an image, the image capturing mode is activated and the camera key 152 shown in FIG. However, the photographed image by the photographing unit 17 to be determined by the photographed image determining unit 1131 is not a photographed image photographed by pressing the camera key 152. Since the shooting mode is activated, the image is shot by the shooting unit 17. Therefore, the captured video stop state determination unit 1132 determines whether or not the motion of the video captured by the capturing unit 17 has been substantially stopped for a predetermined time (for example, 0.5 seconds). First, if the camera key 152 is pressed down for shooting, it is more reliable to directly press down the center key 151 and the return key 157, and this does not improve operability.

  The captured image determination unit 1131 determines that the image captured by the image capturing unit 17 is the same subject as the specific image specified and registered by the user, and the motion of the captured image is substantially stopped for a predetermined time or more. The comparative video image specifying unit 113 specifies the video image determined by the video image stop state determination unit 1132 as the comparative video image.

  The captured video specified as the comparative captured video by the comparative captured video specifying unit 113 is temporarily stored in a memory (RAM). This is because the specific subject displacement determination unit 114 determines whether or not the captured image is a photographed image taken from a position displaced by a predetermined angle (for example, 30 °) or more in a predetermined direction (for example, the right direction) as compared with the specific image.

  The reason for the almost stopped state is that the user swings (displaces) the mobile phone 1 held by the user after all, so it is impossible to make a completely stopped state that does not make a slight movement. It is intended to be regarded as an approximate stop. Even if the captured video is specified as the comparative captured video, the mobile phone 1 that captures the specific subject (user's face) is displaced from a position displaced by a predetermined angle (for example, 30 °) or more in a predetermined direction (for example, the right direction). If the captured image is not a captured image, the specific subject displacement determination unit 114 does not recognize a predetermined displacement, and the display state switching unit 115 does not function.

  Usually, the user uses the display unit 14 of the mobile phone 1 as viewed from the front. Therefore, most of the captured images that are substantially stopped for a predetermined time or more specified by the comparative captured image specifying unit 113 as a comparative captured image are compared with the specific image in a predetermined direction (for example, right direction) at a predetermined angle (for example, 30 °). ) It cannot be a shot image taken from a displaced position. Only when the user wants to activate the display state switching means 115, a photographed image taken from a position displaced by a predetermined angle (for example, 30 °) or more in a predetermined direction (for example, the right direction) as compared with the specific image. In order to specify as a comparative video image, for example, the photographing direction of the photographing unit 17 of the mobile phone 1 is substantially stopped for a predetermined time (for example, 0.5 seconds) from the right side of the user's face, and the right side of the user's face I will shoot the surface.

  When the comparatively captured video specified by the comparatively captured video specifying unit 113 provided in the image display control unit 111 is shot from a position displaced from the specific video by a predetermined angle or more in a predetermined direction, the specific subject displacement included in the image display control unit 111 It operates when it is determined that the predetermined displacement (imaging position fluctuation) of the specific subject (comparative shooting image) is detected by the determination unit 114, and other image data is displayed from the state where the image data is displayed on the display unit 14. The display state switching unit 115 switches to the state displayed on the display unit 14 and is provided in the image display control unit 111.

  For the purpose of preventing occurrence of a display state switching operation by the display state switching unit 115 and a malfunction of the display state switching operation, which are not intended by the user, the image display control unit 111 performs a display state switching operation of the display state switching unit 115. Display state switching prohibiting means 116 that prohibits the user's operation by the user's operation. The display state switching prohibition unit 116 further includes a switch prohibition designation receiving unit 1161 that receives a display state switching operation prohibition designation, a switch prohibition confirmation unit 1162 that confirms whether the display state switching operation of the display state switching unit 115 is prohibited. It has.

  In order to specify prohibition of display state switching by the user, the operation unit 15 performs a predetermined operation, for example, an operation such as pressing down a specific key. When this predetermined operation is performed, the control unit 11 receives the switching prohibition designation receiving unit 1161 and prohibits the display state switching operation of the display state switching unit 115. The switching prohibition confirmation unit 1162 confirms whether the display state switching operation of the display state switching unit 115 is prohibited when the condition for the display state switching by the display state switching unit 115 is satisfied. After confirming that the display state switching operation is not prohibited, the display state switching unit 115 performs the display state switching operation (switching from the first image display state to the second image display state).

  In order to cancel the designation of prohibition of display state switching, the user performs a predetermined release operation, for example, an operation such as depressing a specific release key. The control unit 11 includes predetermined release operation detecting means for detecting that a predetermined release operation has been performed. When the predetermined release operation detecting unit detects a predetermined operation, the switching prohibition designation receiving unit 1161 cancels the display state switching prohibition designation by the user and cancels the display state switching operation prohibition.

  The specific key for specifying the prohibition of display state switching and the specific release key for canceling the prohibition of display state switching may be different specific keys, but prohibiting the switching of the display state using the same specific key When not pressing the specific key, the display state switching prohibition operation is performed. When the display state switching is prohibited, pressing the specific key cancels the display state switching prohibition. You may make it become operation.

  In the first embodiment, the switching prohibition designation receiving unit 1161 and the switching prohibition confirmation unit 1162 are provided, but these prevent a display state switching operation that is not intended by the user and a malfunction of the display state switching operation. Therefore, it is not always necessary to prepare.

  In the first embodiment, it is normal to operate the display state switching unit 115 when the specific subject displacement determination unit 114 determines that a predetermined displacement (shooting position fluctuation) of the specific subject (comparative shooting video) is detected. The display state switching prohibiting means 116 performs an exceptional case where the display state switching means 115 is not operated. However, when the display state switching unit 115 is operated, the ON operation (ON mode) is set, and when the display state switching unit 115 is not operated, the OFF operation (OFF mode) is set, and the image display control unit 111 is controlled according to the operation signal of the operation unit 15 of the user. Further, an ON operation signal or an OFF operation signal may be sent so that the display unit 14 can switch between the ON mode and the OFF mode at a desired timing.

  The specific subject displacement determination unit 114 includes a direction displacement detection unit 1141, an angle displacement detection unit 1142, a direction determination unit 1143, and an angle determination unit 1144. The direction displacement detection unit 1141 is a unit that detects in which direction the shooting position is displaced with respect to the specific video registered by the video registration unit 1122 for the comparative video shot specified by the comparative video shot specifying unit 113. . The angular displacement detection unit 1142 is a unit that detects an angle at which the shooting position is displaced with respect to the specific video of the comparative video. The direction determination unit 1143 is a unit that determines whether or not the displacement direction of the shooting position with respect to the specific image of the comparatively captured image detected by the direction displacement detection unit 1141 is displaced in a predetermined direction. The angle determination unit 1144 is a unit that determines whether or not the displacement angle of the shooting position with respect to the specific image of the comparatively shot image detected by the angular displacement detection unit 1142 is displaced by a predetermined angle or more.

  The specific subject displacement determining unit 114 determines that the direction determining unit 1143 has displaced the displacement direction of the shooting position with respect to the specific image of the comparative captured video, and the angle determining unit 1144 is the comparative captured video. When it is determined that the displacement angle of the shooting position with respect to the specific image is displaced by a predetermined angle or more, it is determined that the condition for operating the display state switching unit 115 is satisfied. However, the case where the switching prohibition confirmation unit 1162 confirms that the display state switching operation of the display state switching unit 115 is prohibited by the user's operation is excluded.

  In the above description, the captured video determination unit 1131 determines that the video captured by the imaging unit 17 is the same subject as the specific video specified and registered by the user, and the motion of the captured video is approximately longer than a predetermined time. This is the case where the comparative video image specifying unit 113 specifies the video image determined by the video image stop state determining unit 1132 as being in the stopped state as the comparative video image.

  However, since the user normally uses the display unit 14 of the mobile phone 1 as viewed from the front, in actuality, many photographed images that cannot be the target for the user to operate the display state switching means 115. Is identified as a comparatively shot video.

  In order to compensate for this drawback, as a modified example of the comparative photographed image specifying means 113 described above, if the image photographed by the photographing unit 17 is the same subject as the specific picture designated and registered by the user, the photographed image determining means 1131 is used. Among the captured images determined by the captured image stop state determination unit 1132 that the movement of the captured image has been substantially stopped for a predetermined time or more, and the direction displacement detection unit of the specific subject displacement determination unit 114 1141 and the angular displacement detection means 1142 may each specify a captured image detected as a comparatively captured image in which the shooting position is displaced in a predetermined direction by a predetermined angle or more with respect to the specific image.

  In addition, as a modification of the comparative photographed video specifying unit 113 described above, the user may set one of the photographed pictures photographed by the photographing unit 17 as a comparative photographed video. In this case, the mobile phone 1 is provided with comparative photographing video designation receiving means for accepting a comparative photographing video designation by the user, and the comparative photographing video specifying means 113 recognizes the photographing video received by the comparative photographing video designation receiving means as a comparative photographing video. It will be. In this case, the convenience is somewhat sacrificed as compared to the case where the photographed video determined that the motion of the photographed video is substantially stopped for a predetermined time (for example, 0.5 seconds) or longer is automatically recognized as the comparative photographed video. I do not get.

  However, there is an advantage that the user can certify as a comparative video image a video image that is convenient for determining in which direction and how much angle the video shooting position of the comparative video image is displaced from the specific video video shooting position. In addition, a malfunction of the display state switching operation caused by the user inadvertently moving his / her hand holding the mobile phone 1 without the intention of the user, and a plurality of faces (a plurality of subjects of the same type as the specific image) are captured by the photographing unit 17. It is possible to prevent a malfunction of the display state switching operation in a place where a photographing object) is photographed.

  For example, if one of the operation keys provided in the cellular phone 1 is used as an acceptance key for the comparative photographing video designation accepting means, when the user wants the display state switching means 115 to function, the hand holding the cellular phone 1 is moved in a predetermined direction. And move it more than a predetermined angle and press this acceptance key. Note that the reception key does not need to be specially provided, and any one of the operation keys can be used. For example, in the multi-function mobile phone 1, when a specific function using the display state switching means 115 is activated, a specific operation key is used as an acceptance key.

  In the case of the comparative photographing image specifying means 113 provided with the comparative photographing image designation receiving means, if the user does not set one of the photographing images photographed by the photographing unit 17 as the comparative photographing image, the comparative photographing image designation receiving means Since the user does not accept the comparative shot image designation by the user, the above-described display state switching prohibition unit 116 and the ON operation when the display state switching unit 115 is operated and the OFF operation switching operation when the display state switching unit 115 is not operated are not provided. There is also an advantage that the display state switching function by the display state switching means 115 can be turned ON / OFF at a desired timing.

  Next, the specific subject displacement determination means 114 determines the displacement of the shooting position of the specific subject, that is, how the direction displacement detection means 1141 detects the displacement direction, and how the angle displacement detection means 1142 determines the displacement angle. Whether to detect will be described below with reference to FIGS. FIG. 4 is a schematic top view of the state in which the user 7 swings (displaces) the mobile phone 1 held by the right hand 8 in the right direction by an angle θ ° as viewed from directly above the user 7. FIG. 5 is a specific image obtained by photographing the face portion of the user 7 at the position 1 (A) by the photographing unit 17 of the mobile phone 1 in FIG. FIG. 6 is a comparative photograph image obtained by photographing the face part of the user 7 at the position 1 (B) by the photographing part 17 of the mobile phone 1 in FIG. FIG. 7 is a comparative photograph image obtained by photographing the face portion of the user 7 at the side position on the side by the photographing portion 17 of the mobile phone 1 in FIG. 4, and is a case where θ in FIG. 4 is 90 °.

  Since the photographing unit 17 is positioned near the upper end of the display unit 14 and the direction of the user 7 viewing the display unit 14 is the photographing direction of the photographing unit 17, the user 7 holds the mobile phone 1 in his hand and carries it. If the display unit 14 of the telephone 1 is browsed, the photographing unit 17 of the mobile phone 1 naturally shoots the face part of the user 7. For example, when the user 7 holds the mobile phone 1 in the right hand and the display unit 14 of the mobile phone 1 faces the user 7, that is, the direction of the user 7 is taken as the shooting direction of the shooting unit 17, the user 7 shakes in the right direction. For example, the mobile phone 1 is displaced in the right direction while drawing an arc centering on the position of the user 7 and having the radius of the position of the right hand holding the mobile phone 1. For this reason, the photographing unit 17 of the mobile phone 1 photographs a right-side oblique portion of the face portion of the user 7 (FIG. 6).

  A photographed image (FIG. 5) of the front face of the user 7 photographed by the photographing unit 17 from the position of the right hand in front of the user 7 (position 1A in FIG. 4) is registered in advance as a specific image. It shall be left. Now, it is assumed that the user 7 holds the mobile phone 1 in the right hand and swings the user 7 in the right direction as the shooting direction of the shooting unit 17. Then, a photographed image (FIG. 6) taken obliquely from the front right side of the face of the user 7 photographed by the photographing unit 17 from the position of the right hand of the user 7 in the right direction (position (B) in FIG. 4) is a comparative photograph image. Assume that it has been identified. In this case, the direction displacement detection means 1141 and the angular displacement detection means 1142 detect the displacement direction and the displacement angle of the photographing position of the comparative photographing image from the specific image shown in FIG. 5 and the comparative photographing image shown in FIG. become. Hereinafter, a method for detecting the displacement direction and the displacement angle will be briefly described.

  The direction displacement detection means 1141 and the angular displacement detection means 1142 are the reference points 1 (right eye corners), respectively, for the outer ends (eye corners) in the direction away from the nose of both eyes on the front part of the face of the specific image in FIG. Suppose that the reference point 2 (left eye corner) is designated and registered. Here, the center position of the subject head face in FIGS. 5 and 6 in the width direction is displayed at the center position of the width of the display unit 14, and the height of the subject head face from the top of the head to the chin is also shown in FIG. In FIG. 6, the vertical height is the same, and the vertical center position of the subject head face is corrected and displayed so as to be displayed at the vertical center position of the display unit 14. The following is an explanation of FIGS. 5 and 6 in which the correction is displayed.

  When the specific image (captured image of the front face of the face, FIG. 5) is compared with the comparative image (captured image of the right side of the face, FIG. 6), the reference point 1 of the specific image with respect to the center position of the horizontal width of the display unit 14 In the comparative image, the position of 2 is found to be displaced to the right by a certain amount if the mobile phone 1 is displaced rightward from the specific image. That is, the mobile phone 1 is held in the hand, and the display unit 14 of the mobile phone 1 is directed to the user 7 so that the direction of the user 7 becomes the shooting direction of the shooting unit 17, and the right angle is shaken. It turns out. Further, if FIG. 7 is a comparative photograph image, the reference point 1 exists in this comparative photograph image, but the reference point 2 does not exist, and therefore the angle displaced in the right direction is larger than the comparative photograph image of FIG. Becomes clear.

  Furthermore, if the distance between the reference points 1 and 2 is shorter than that of the specific image in the comparative image, it is determined that a certain angular displacement has occurred. Thus, the displacement of the mobile phone 1 depends on which direction the reference points 1 and 2 are displaced compared to the specific image and how much the distance between the distance reference points 1 and 2 is shorter than the specific image. The direction and the displacement angle θ ° are detected.

  It should be noted that when detecting the displacement direction and the displacement angle of the mobile phone 1 by comparing the above-described comparatively captured image and the specific image, the subject head face of the user 7 captured in the comparatively captured image and the specific image is detected. If the sizes are different, errors such as the distance between the distance reference points 1 and 2 occur, and accurate determination cannot be performed. For this reason, the displacement direction and the displacement angle θ ° are detected using the correction display screen as described above.

  In the first embodiment, since the mobile phone 1 is swung with the right hand, the distance between the user 7 and the mobile phone 1 is substantially the same. Make sure that the position of the right hand holding the mobile phone 1 does not change, and make sure that the face of the user 7 captured in the comparison video and the specific video is at the center of the video. By paying attention to the above, it is possible to omit or simplify the correction.

  In order to explain the detection method of the displacement direction and displacement angle θ ° in an easy-to-understand manner, the correction display screen as described above is used. However, even if no correction screen is actually displayed, the reference points 1 and 2 can be specified. In this case, the computer included in the mobile phone 1 can calculate the distance, thereby converting the distance and detecting the displacement direction and the displacement angle θ °. In this case, the vertical height of the subject head face from the top vertex to the chin of the subject head face in FIGS. 5 and 6 is the same for the specific image (FIG. 5) and the comparative image (FIG. 6). Then, the distance between the specific video and the comparative video is converted.

  In response to the fact that the mobile phone 1 is displaced by the angle θ ° in the right direction by the direction displacement detection means 1141 and the angular displacement detection means 1142, the direction determination means 1143 and the angle determination means 1144 It is determined whether or not it is displaced rightward by a predetermined angle (for example, 30 °) or more. As described above, the direction displacement detection unit 1141, the angle displacement detection unit 1142, the direction determination unit 1143, and the angle determination unit 1144 can function effectively.

  When the specific subject displacement determination unit 114 determines that a predetermined displacement (imaging position variation) of the specific subject has been detected, the display state switching unit 115 operates to change the display state of the display unit 14 from the first image display state. Switch to the two-image display state.

  Instead of holding the mobile phone 1 in the right hand and shaking the display unit 14 of the mobile phone 1 toward the user 7 so that the direction of the user 7 becomes the shooting direction of the shooting unit 17 as described above. The same applies to the case where the user 7 changes the direction to the left while holding the mobile phone 1 in the right hand and keeping the display unit 14 of the mobile phone 1 facing the user 7.

  At present, image recognition technology has advanced considerably. Apart from the above description, the specific subject displacement determination means 114 can also determine the displacement of the specific subject (imaging position fluctuation) by applying these known techniques.

  In the above description, the case where the mobile phone 1 is held in the right hand and shaken in the right direction to cause the display state switching means 115 to function is described. However, the mobile phone 1 is held in the hand and shaken in the vertical direction as well as in the horizontal direction. The display state switching unit 115 may function.

  In the above description, it is described that the image display control unit 111 that controls the display of the display unit 14 includes the specific image specifying unit 112, the comparative shooting image specifying unit 113, the specific subject displacement determining unit 114, and the display state switching prohibiting unit 116. ing. However, instead of the image display control unit 111, the control unit 11 may be provided.

  Next, a flowchart for explaining a display state switching method using the display state switching means 115 on the e-mail data browsing screen of the mobile phone 1 of the first embodiment will be described with reference to FIGS. 8 to 13. In the following, the received mail in the electronic mail mode will be described, but the same applies to the transmitted mail. 8 to 13 will be described on the assumption that the photographing function using the photographing means has already been activated. The display screen switching will be exemplified and described as the display state switching when it is determined that the display state switching 1 and the display state switching 2 are activated.

  First, a flowchart of a display switching method using the display state switching unit 115 will be described with reference to FIGS.

  When the user activates the mail mode at step S41 in FIG. 8 (hereinafter abbreviated as “steps”), the received mail list screen illustrated in FIG. It is displayed on the display unit 14. In S43, it is determined whether or not the user has selected one received mail from the received mail list by operating the up / down key of the cross key 155 of the operation unit 15 of the mobile phone 1.

  If it is determined in S43 that one received mail is selected from the received mail list, a subroutine for display state switching 1 operation determination processing is executed in S44. The subroutine of the display state switching 1 operation determination process will be described later with reference to FIG. When it is determined that the display state switching 1 is to be activated, the display state switching 1 operation flag is set (S7 in FIG. 12A). In S44a, it is determined whether or not the display state switching 1 operation flag is set.

If it is determined in S44a that the display state switching 1 operation flag is set, the display state switching 1 operation flag is reset in S44b, and one received mail selected from the received mail list is fixed. Then, in order to display the received mail text whose selection is confirmed, a subroutine of received mail text display processing is executed in S46. The received mail text display processing subroutine will be described later with reference to FIG. By executing the received mail text display process, the first page of the selected browse received mail text data illustrated in FIG. 15 is displayed on the display unit 14 (S21 in FIG. 13). Even if it is determined in S44a that the display state switching 1 operation flag has not been set, if it is determined in S45 that the center key 151 has been pressed by the user, the process proceeds to S46, and a received mail text display processing subroutine is executed. Is done.

  If it is determined in S44a that the display state switching 1 operation flag is not set, and it is determined in S45 that the center key 151 has not been depressed, the process returns to the subroutine execution of the display state switching 1 operation determination processing in S44. In a state where one received mail is selected on the received mail list screen, the display state switching 1 operation flag is set or the center key 151 is pressed down.

  Next, in a state where the received mail text display processing subroutine is completed (browsing received mail text data display state), the process proceeds to S47, and the display status switching 1 operation determination processing subroutine is executed. If it is determined in S47a that the display state switching 1 operation flag is set, the display state switching 1 operation flag is reset in S47b, and the display of the selected received mail text is confirmed. Then, the process proceeds to S51, and it is determined whether or not an attached file exists in the selected browse received mail. Even if it is determined in S47a that the display state switching 1 operation flag is not set, if it is determined in S48 that the center key 151 is pressed by the user, the process proceeds to S51. If it is determined in S48 that the center key 151 has not been depressed by the user, the process proceeds to S49, and a subroutine of display state switching 2 operation determination processing is executed. The subroutine of the display state switching 2 operation determination process will be described later with reference to FIG.

  If it is determined in S49a that the display state switching 2 operation flag is set, the display state switching 2 operation flag is reset in S49b, and the screen returns to the received mail list screen display in S42. Even if it is determined in S49a that the display state switching 2 operation flag is not set, if it is determined in S50 that the user has pressed the return key 157, the screen returns to the received mail list screen display in S42. If it is determined in S50 that the return key 157 has not been depressed, the process returns to the subroutine execution of the display state switching 1 operation determination process in S47.

  When it is determined that a file is attached to the browse received mail selected in S51, the attached file illustrated in FIG. 17 attached to the received mail is displayed on the display unit 14 in S52.

  In this way, when it is determined that the display state switching 1 operation is performed, it is detected whether or not attached data is present in the selected browsing received mail body data displayed on the display unit 14 and attached. When the presence of data is detected, the text data of the selected received mail displayed on the display unit 14 is switched to the detected image data of the attached data and displayed.

  Next, in a state where the attached file is displayed on the display unit 14, the process proceeds to S53, and a subroutine of display state switching 1 operation determination processing is executed. If it is determined in S53a that the display state switching 1 operation flag is set, the display state switching 1 operation flag is reset in S53b, and the display of the attached file is confirmed. Then, in S57, it is determined whether or not to reply to the browse received mail. Even if it is determined in S53a that the display state switching 1 operation flag is not set, if it is determined in S54 that the center key 151 is depressed by the user, the process proceeds to S57. When it is determined in S54 that the center key 151 has not been depressed by the user, the process proceeds to S55, and a subroutine of display state switching 2 operation determination processing is executed.

  If it is determined in S55a that the display state switching 2 operation flag is set, the display state switching 2 operation flag is reset in S55b, and the process returns to the subroutine execution of the received mail text display process in S46. Even if it is determined in S55a that the display state switching 2 operation flag is not set, if it is determined in S56 that the return key 157 is depressed by the user, the process returns to the subroutine execution of the received mail text display process in S46. . If it is determined in S56 that the return key 157 has not been depressed, the process returns to the subroutine execution of the display state switching 1 operation determination process in S53.

  If it is determined in S57 that an operation to send a reply mail is performed by the user, a new mail creation mode is activated in S58, and a new mail creation screen illustrated in FIG. Is displayed. If it is determined in S57 that the user has not performed an operation to send a reply mail to the browsing received mail, the display returns to the received mail list screen in S42.

  In a state where the new mail creation screen of S59 is displayed on the display unit 14, the process proceeds to S60, and a subroutine of display state switching 1 operation determination processing is executed. If it is determined in S60a that the display state switching 1 operation flag is set, the display state switching 1 operation flag is reset in S60b, and new mail creation is confirmed. In S64, it is determined whether or not to edit the destination. Even if it is determined in S60a that the display state switching 1 operation flag is not set, if it is determined in S61 that the center key 151 is pressed by the user, the process proceeds to S64. If it is determined in S61 that the center key 151 has not been depressed by the user, the process proceeds to S62, and a subroutine of display state switching 2 operation determination processing is executed.

  If it is determined in S62a that the display state switching 2 operation flag is set, the display state switching 2 operation flag is reset in S62b, and the process returns to the determination in S57 as to whether or not to reply to the browse received mail. Even if it is determined in S62a that the display state switching 2 operation flag is not set, if it is determined in S63 that the return key 157 is pressed by the user, it is determined whether or not to reply to the browse received mail in S57. Returned to If it is determined in S63 that the return key 157 has not been depressed, the process returns to the subroutine execution of the display state switching 1 operation determination process in S60.

  Next, when it is determined in S64 that the user edits the destination, the destination edit screen illustrated in FIG. 19 is displayed on the display unit 14 in S65, and the user edits the destination in S66. Can be done. If it is determined in S64 that the operation for editing the destination is not performed by the user, the process proceeds to S71, and it is determined whether or not the operation for editing the subject is performed by the user.

  The destination editing operation by the user in S66 ends, and the process proceeds to S67, in which a subroutine for display state switching 1 operation determination processing is executed. If it is determined in S67a that the display state switching 1 operation flag is set, the display state switching 1 operation flag is reset in S67b, and the destination editing operation is confirmed. Then, the process proceeds to S71. Even if it is determined in S67a that the display state switching 1 operation flag is not set, if it is determined in S68 that the center key 151 is pressed by the user, the process proceeds to S71. When it is determined in S68 that the center key 151 has not been depressed by the user, the process proceeds to S69, and a subroutine of display state switching 2 operation determination processing is executed.

  When it is determined in S69a that the display state switching 2 operation flag is set, the display state switching 2 operation flag is reset in S69b, and the process returns to the determination of whether or not to edit the destination in S64. Even if it is determined in S69a that the display state switching 2 operation flag is not set, if it is determined in S70 that the return key 157 is pressed by the user, the process returns to the determination in S64 as to whether or not to edit the destination. It is. If it is determined in S70 that the return key 157 has not been depressed, the process returns to the subroutine execution of the display state switching 1 operation determination process in S67.

  Next, if it is determined in S71 that the user edits the subject, the subject edit screen illustrated in FIG. 20 is displayed on the display unit 14 in S72, and the user edits the subject in S73. Can be done. If it is determined in S71 that the operation for editing the subject is not performed by the user, the end of the subject editing operation is confirmed, and the process proceeds to S78 to determine whether the operation for editing the mail text is performed by the user. The

  The subject editing operation by the user in S73 ends, and the process proceeds to S74, in which a subroutine of display state switching 1 operation determination processing is executed. If it is determined in S74a that the display state switching 1 operation flag is set, the display state switching 1 operation flag is reset in S74b, and the subject editing operation is confirmed. Then, the process proceeds to S78. Even if it is determined in S74a that the display state switching 1 operation flag is not set, if it is determined in S75 that the center key 151 is depressed by the user, the process proceeds to S78. If it is determined in S75 that the center key 151 has not been depressed by the user, the process proceeds to S76, and a subroutine for display state switching 2 operation determination processing is executed.

  If it is determined in S76a that the display state switching 2 operation flag is set, the display state switching 2 operation flag is reset in S76b, and the process returns to the determination in S71 as to whether or not to edit the subject. Even if it is determined in S76a that the display state switching 2 operation flag is not set, if it is determined in S77 that the user presses the return key 157, the process returns to the determination in S71 as to whether or not to edit the subject. It is. If it is determined in S77 that the return key 157 has not been depressed, the process returns to the subroutine execution of the display state switching 1 operation determination process in S74.

  If it is determined in S78 that the user edits the mail text, the mail text editing screen illustrated in FIG. 21 is displayed on the display unit 14 in S79, and the user edits the mail text in S80. Can be operated. If it is determined in S78 that the operation for editing the mail text is not performed by the user, the process proceeds to S85, and it is determined whether or not to attach a file to the new mail to be returned.

  The mail text editing operation by the user in S80 is completed, and the process proceeds to S81, in which a subroutine of display state switching 1 operation determination processing is executed. If it is determined in S81a that the display state switching 1 operation flag is set, the display state switching 1 operation flag is reset in S81b, and the mail text editing operation is confirmed. Then, the process proceeds to S85. In S85, it is determined whether or not to send the created mail. Even if it is determined in S81a that the display state switching 1 operation flag is not set, if it is determined in S82 that the center key 151 is depressed by the user, the process proceeds to S85. If it is determined in S82 that the center key 151 has not been depressed by the user, the process proceeds to S83, and a subroutine of display state switching 2 operation determination processing is executed.

  If it is determined in S83a that the display state switching 2 operation flag is set, the display state switching 2 operation flag is reset in S83b, and the process returns to the determination of whether or not to edit the mail text in S78. Even if it is determined in S83a that the display state switching 2 operation flag is not set, if it is determined in S84 that the return key 157 is pressed by the user, it is determined whether or not the mail text is edited in S78. Returned. If it is determined in S84 that the return key 157 has not been depressed, the process returns to the subroutine execution of the display state switching 1 operation determination process in S81.

  Here, when the user operates the operation unit 15 (image editing operation means) while looking at the display screen displayed on the display unit 14 and performs a predetermined operation such as editing of the mail text (S80), the display is performed. The function of switching the state is automatically prohibited. For example, the display state switching operation by the display state switching means 115 is automatically performed during the address editing operation by the user (S66), the subject editing operation by the user (S73), and the mail text editing operation by the user (S80). Prohibited. In this way, the user can switch the screen to the display of the body data of the selected reception data or the attached file at a desired timing other than during the editing process. This is because even if the user carelessly moves the direction of the electronic device, the display state switching unit 115 does not operate, and an erroneous operation unintended by the user is prevented.

  Here, the function of switching the display state when the user performs a predetermined operation such as editing the mail text by operating the operation unit 15 (image editing operation means) while viewing the display screen displayed on the display unit 14. Explained the case where is automatically prohibited. However, the present invention is not limited to editing the mail text, and can be applied so that the function of switching the display state is automatically prohibited when the user performs an operation specified in advance by the operation unit 15.

  For this purpose, a display state switching prohibition operation setting unit that presets a predetermined operation for prohibiting the display state switching operation of the display state switching unit 115, and whether or not the set display state switching prohibition operation is performed. It is necessary to provide the image display control means 111 with the prohibited predetermined operation detection means to detect.

  In order to prohibit the display state switching operation of the display state switching means 115 during the image editing operation, whether or not the image editing operation means for editing the contents of the image displayed on the display unit 14 and the image editing operation means are being operated. When the image editing operation detecting means and the image editing operation detecting means detect that the image editing operation detecting means is operating, the display state switching operation of the display state switching means 115 is performed until the image editing operation detecting means detects the end of the operation. Display state switching prohibiting means for prohibiting.

  Next, when it is determined in S85 in FIG. 11 that the user attaches the file, in S86, the user can perform an operation to attach the attached file illustrated in FIG. After the operation of attaching the attached file is terminated in S86, the process proceeds to S87, and a subroutine of display state switching 1 operation determination processing is executed. If it is determined in S87a that the display state switching 1 operation flag is set, the display state switching 1 operation flag is reset in S87b, and the file attachment operation is confirmed. Then, the process proceeds to S91. Even if it is determined in S87a that the display state switching 1 operation flag is not set, if it is determined in S88 that the center key 151 is pressed by the user, the process proceeds to S91. If it is determined in S88 that the center key 151 has not been depressed by the user, the process proceeds to S89, and a subroutine for display state switching 2 operation determination processing is executed.

  When it is determined in S89a that the display state switching 2 operation flag is set, the display state switching 2 operation flag is reset in S89b, and the process returns to the determination in S85 as to whether or not to attach the file. Even if it is determined in S89a that the display state switching 2 operation flag is not set, if it is determined in S90 that the user presses the return key 157, the process returns to the determination in S85 as to whether or not to attach the file. It is. If it is determined in S90 that the return key 157 has not been depressed, the process returns to the subroutine execution of the display state switching 1 operation determination process in S87.

  Next, if it is determined that an operation for transmitting the mail created in S91 is performed by the user, in S92, the user can perform an operation for transmitting mail. If it is determined that the mail created in S91 is not to be transmitted and it is determined that the user saves the mail created in S93, the user can perform an operation for saving the created mail in S94. . If it is determined that the mail created in S93 is not to be saved, and it is determined in S95 that an operation for ending the mail mode is performed by the user, in S96, the user can perform an operation for ending the mail mode. If it is determined in S95 that the user does not perform an operation to end the mail mode, the process returns to the display of the received mail list screen in S42.

  As described above, in the new mail creation mode, the user can edit the destination, subject, body text, and attach a file by operating the operation unit 15 according to the display on the display unit 14 (S66, S73, S80, S86). At this time, the user can switch the screen to the display of the text data of the selected reception data or the attached file at a desired timing other than during the editing process. This makes it possible to switch the display screen, such as creating a reply mail for the mail while referring to the received mail at a user's desired timing without performing troublesome key operations.

  It should be noted that the switching prohibition designation accepting unit 1161 accepts the display state switching prohibition designation by the user and prohibits the display state switching, so that the user can view the operation unit 15 (image editing) while viewing the display screen displayed on the display unit 14. As described above, when the operation means) is operated to perform a predetermined operation such as editing a mail text in the new mail creation mode, the function of switching the display state is automatically prohibited.

  Next, with reference to FIG. 12, each subroutine of the display state switching 1 operation determination process shown in FIG. 12 (A) and the display state switching 2 operation determination process shown in FIG. 12 (B) will be described. Here, for the sake of simplicity, the display state switching 1 and the display state switching 2 are activated only when it is detected that the position of the user's face is displaced from the left to the right and from the right to the left by a predetermined angle or more. It is determined that the display state is switched.

  The display state switching 1 operation determination process is a direction in which a captured image of the face of the user as the subject is captured from the left side to the right side of the face, for example, the captured image is obliquely rightward on the face in FIG. This is a process for determining whether or not the photographing position of the photographing means of the mobile phone 1 has been displaced by a predetermined angle or more in the right direction so that the image is displaced in the direction of the right side image of the face in FIG. When it is determined that the imaging position of the imaging means of the mobile phone 1 has been displaced by a predetermined angle or more in the right direction, it is determined that the display state switching 1 is activated, and the display screen of the display unit 14 is switched. This display state switching 1 operation is the same as when the center key 151 of the operation unit 15 is depressed and a “next” instruction is issued.

  In the display state switching 2 operation determination process, the shooting position of the mobile phone 1 is more than a predetermined angle in the left direction so that the shot image of the face of the user as the subject is displaced from the right side to the left side. This is a process for determining whether or not a displacement has occurred. When it is determined that the photographing position of the photographing means of the mobile phone 1 has been displaced by a predetermined angle or more to the left, it is determined that the display state switching 2 is activated, and the display screen of the display unit 14 is switched. This display state switching 2 operation functions in the same manner as when the return key 157 of the operation unit 15 is depressed and a “return to front” instruction is issued.

  First, the subroutine flow of the display state switching 1 operation determination process will be described. In FIG. 12A, in S1, a front image of a specific subject (a captured image of a user's face) is registered as a specific image. Next, in S2, it is determined whether the captured image is the same subject as the specific image, that is, whether the user's face is captured. If it is a captured video in which the same subject as the specific video is captured, it is determined in S3 whether or not the captured video of the specific subject has been substantially stopped for a predetermined time or longer, for example, 0.5 seconds or longer. When it is determined that the camera has substantially stopped for 0.5 seconds or more, the substantially stopped shooting video is certified as a comparative shooting video in S4.

  However, when the user depresses a predetermined key of the operation unit 15, the captured image may be recognized as a comparative captured image. That is, it may be provided with a comparative photographing video designation receiving means for accepting a comparative photographing video designation by the user, and the comparative photographing video specifying means 113 may recognize the photographing video received by the comparative photographing video designation receiving means as a comparative photographing video. .

  Next, in S5, the direction determination unit 1143 determines whether or not the certified comparative video image is an image in which the front image of the specific image is displaced in the direction of the right side image. When it is determined that the image is displaced in the direction of the right side image, in S6, the recognized comparative image is shifted from the specific image (the image of the front part of the face, FIG. 5) to the right side image by a displacement angle of 30 °. Whether or not it has been displaced is determined by the angle determination means 1144. When it is determined that the displacement angle is more than 30 ° (predetermined angle), the display state switching 1 operation flag is set in S27. In other cases, the display state switching 1 operation flag is not set, so the display state switching 1 operation flag is not set.

  Next, the flow of the subroutine of the display state switching 2 operation determination process will be described only in the parts different from the subroutine of the display state switching 1 operation determination process. In FIG. 12B, in S15, the direction determination unit 1143 determines whether or not the recognized comparatively captured video is a video in which the front video of the specific video is displaced in the direction of the left video. When it is determined that the image is displaced in the direction of the left side image, in S16, the identified comparative image is the displacement angle from the specific image (the image of the front face of the face, FIG. 5) to the left side image. It is determined by the angle determination means 1144 whether or not the displacement is 30 ° or more. When it is determined that the displacement angle is more than 30 ° (predetermined angle), the display state switching 2 operation flag is set in S17. In other cases, it is recognized that the display state switching 2 is inoperative, and thus the display state switching 2 operation flag is not set.

  Next, the received mail text display process subroutine used in S46 of FIG. 8 described above will be described with reference to FIG.

  In S21, the first page of the browse received mail text data selected in S43 of FIG. The subroutine of the display state switching 1 operation determination process is executed in a state where the first page of the browsed received mail text data is displayed on the display unit 14 (S22), and the display state switching 1 operation flag is set in S22a. If it is determined, the display state switching 1 operation flag is reset in S22b, and it is determined whether or not there is a second page following the first page of the browse received mail text data selected in S24. Even if it is determined in S22a that the display state switching 1 operation flag is not set, if it is determined in S23 that the center key 151 is depressed by the user, the first page of the received received mail text data selected in S24 It is determined whether or not the second page following is present. If it is determined in S22a that the display state switching 1 operation flag is not set, and it is determined in S23 that the center key 151 has not been depressed, the process returns to the subroutine execution of the display state switching 1 operation determination processing in S22. .

  If it is determined in S24 that the second page following the first page of the selected browse received mail text data is present, the second page of the selected browse received mail text data illustrated in FIG. 16 is displayed in S25. 14 is displayed. If it is determined in S24 that the second page following the first page of the selected browsed received mail text data does not exist, the received mail text display process subroutine ends.

  The subroutine of the display state switching 1 operation determination process is executed in the state where the second page of the browsed received mail body data selected in S25 is displayed (S26), and the display state switching 1 operation flag is set in S26a. If it is determined, the display state switching 1 operation flag is reset in S26b, and the process proceeds to S30, in which it is determined whether or not there is a third page following the second page of the selected browsing received mail body data. Even if it is determined in S26a that the display state switching 1 operation flag is not set, if it is determined in S27 that the center key 151 is depressed by the user, the process proceeds to S30. When it is determined in S27 that the center key 151 has not been depressed by the user, the process proceeds to S28, and a subroutine of display state switching 2 operation determination processing is executed.

  If it is determined in S28a that the display state switching 2 operation flag is set, the display state switching 2 operation flag is reset in S28b, and the display is returned to the display of the selected first page of the received received mail text data in S21. . Even if it is determined in S28a that the display state switching 2 operation flag is not set, if it is determined in S29 that the return key 157 is depressed by the user, the first page of the received received mail text data selected in S21 Is returned to the display. If it is determined in S29 that the return key 157 has not been depressed, the process returns to the subroutine execution of the display state switching 1 operation determination process in S26.

  When there is a third page following the second page of the browse received mail text data selected in S30, the selected third page of browse received mail text data is displayed on the display unit 14 in S25. While there is a page following the selected browsing received mail body data, is it determined that the display state switching 1 operation flag is set in the display state switching 1 operation determination process of S26 (S26a) or used in S27? If it is determined that the center key 151 is depressed by the user, the page following the selected browsed received mail text data is repeatedly displayed on the display unit 14. When it is determined that there is no subsequent page, the received mail text display processing subroutine ends.

  When it is determined that the display state switching 2 operation flag is set in the display state switching 2 operation determination process in S28 (S28a), the display state switching 2 operation flag is reset (S28b) and the selected browsing reception in S21 is performed. The display is returned to the first page of the mail text data. When it is determined in S29 that the return key 157 has been pressed, the display is similarly returned to the first page of the selected received browsing mail text data in S21. If it is determined in S29 that the return key 157 has not been depressed, the process returns to the subroutine execution of the display state switching 1 operation determination process in S26.

  In this way, when it is determined that the display state switching 1 operation is performed, the selected browsed received mail text data displayed on the display unit 14 is not completely displayed on the display unit 14 due to the space of the display unit 14. It is detected whether or not there is undisplayed image data. If there is remaining undisplayed image data, the body data of the selected received mail displayed on the display unit 14 is stored. Switch to the undisplayed image data.

  In this example, the display state is switched from the display state of the first image to the display state of the second image as an example of display state switching, and thus the body data of the received mail is switched to the remaining undisplayed image data and displayed. is doing. However, the display can be switched to the scroll display state. In this case, instead of switching the display of the first page of the received received mail text data to the display of the second page (still image switching display state), the first display of the first page disappears and the disappeared second page Are displayed in a scrolling display state (moving image display state). For this reason, it is possible to browse from the first page display to the second page display as continuous information.

  While there is a page following the selected browsed received mail text data, is it determined that the display state switching 1 operation flag is set in the display state switching 1 operation determination processing in S26 (S26a), or the user in S27 If it is determined that the center key 151 is pressed, the page following the selected browsed received mail text data is repeatedly displayed on the display unit 14. If it is determined in the display state switching 2 operation determination process in S28 that the display state switching 2 operation flag is set (S28a), or if it is determined in S29 that the return key 157 is pressed, S21 is selected. The browsing received mail text data is returned to the first page display.

  As described above, for the sake of simple explanation, if the display state switching 2 is activated or the return key 157 is pressed while the browsing received mail text data is displayed on the nth page, the browsing received mail text data is changed. Instead of returning to the display of the (n-1) th page, the flow returns to the display of the first page. However, when the display status switch 2 is activated or the return key 157 is pressed while the browsing received mail body data is displaying the nth page, the page number of the browsing received mail body data is detected. It is also possible to return to the display of the (n-1) th page.

  In the above description, when the user's face is displaced from the left to the right by a predetermined angle or more in the subject image obtained by the photographing unit, the key operation can be omitted by the detection pattern when the user is displaced from the right to the left by the predetermined angle or more. did. However, it is not necessary to limit to this case. For example, the same can be implemented even if the direction of displacement of the subject image obtained by the photographing means is changed from top to bottom and from bottom to top.

  Further, when the user's face is displaced from the left to the right in the subject image obtained by the photographing unit, the key operation can be omitted by the detection pattern when the user's face is displaced from the right to the left direction. When the user's face is displaced from the top to the bottom in the subject image, or when the user's face is displaced from the bottom to the top, the key operation can be further omitted by further increasing the detection pattern. For example, the left and right displacements are used for switching the display image as the display state switching, and the up and down displacements are allocated for switching the still display image as the display state switching to the scroll display state. It is considered possible to operate.

  In the above, the selected browsing received mail text is displayed on the screen, when there is a next page in the text, the next page is displayed on the screen, or when there is an attached file attached to the browsing received mail Explained how to display files on the screen. Further, when two or more functions other than the shooting function are activated in the mobile phone 1, the display state of the image data displayed on the display unit 14 by one function other than the shooting function is set to other than the shooting function. It has also been described that the display state is switched to the display state of the image data by another function by the display state switching operation.

  In the above, the display state switching 1 operation is the same as when the center key 151 of the operation unit 15 is depressed and the instruction of “next” is given, and the display state switching 2 operation is the operation unit It has been described that the 15 return key 157 is depressed and functions in the same manner as when a “return to front” instruction is given. That is, it has been described that the display state switching 1 is activated instead of the center key 151 being depressed, and the display state switching 2 is activated instead of the return key 157 being depressed.

  However, the display state switching 1 operation is not intended to be limited to the one having the same effect as the center key 151 depression, and is set in advance in consideration of the situation until the display state switching 1 operation. The display state may be automatically switched according to the program being executed. Similarly, the display state switching 2 operation is not intended to be limited to the one having the same effect as the return key 157 depression, but is set in advance in consideration of the situation until the display state switching 2 operation. The display state may be automatically switched according to the program being executed. In this case, the display state switching 1 operation and the display state switching 2 operation can have specific functions.

  As a modification of the flowchart, for example, the user may want to browse the received mail text again for confirmation after creating a new mail. For this reason, if it is determined that the display state switching 2 operation is performed after the mail text editing operation process in S80, the process returns to the determination of whether or not to edit the mail text in S78, but the received mail text display process in S46. Returning to the subroutine execution, if it is determined that the display state switching 2 operation is performed after the subroutine of the received mail text display process in S46, the user returns after creating a new mail.

  As a modification of the above flowchart, the user prepares a reply mail. However, there is a case where the user still cares before sending and wants to confirm the browse received mail again. Therefore, if it is determined that the display state switching 2 operation is performed immediately before determining whether or not the mail created in S91 is to be transmitted, the subroutine returns to the received mail text display process subroutine in S46, and the received mail text display process subroutine in S46. When it is determined that the display state switching 2 operation is performed after the execution, the state is returned to the state before the determination as to whether or not to transmit the mail created in S91. In order to implement this modification, it is necessary to set in advance in the program how to change the display state depending on the situation at the time of the display state switching 1 operation.

  In the flowchart described above, it is determined whether or not an operation for sending a reply mail is performed by the user (S57), whether or not an operation for editing the destination is performed by the user (S64), (S71), whether or not an operation for editing the mail text is performed by the user (S78), and an operation for attaching a file is performed by the user. The determination of whether or not the operation is performed (S85) and the determination whether or not the operation of transmitting the created mail is performed by the user (S91) are both intricate descriptions as a flowchart. For example, taking S57, more precisely, a screen asking the user whether or not to send a reply mail to the display unit 14 at the stage of S57 is displayed to confirm the user's intention. The same applies to the other S64 to S91.

  In the above flowchart, when it is determined in S23 / S45 that the center key 151 has not been depressed, the description returns to the subroutine execution of the display state switching 1 operation determination process in S22 / S44, S29 / S50 / S56 / S63. If it is determined in S70, S77, S84, or S90 that the return key 157 has not been pressed, the subroutine execution of the display state switching 1 operation determination process in S25, S47, S53, S60, S67, S74, S81, and S87 is executed. The description of returning to is a miscellaneous description as a flowchart. For example, when it is determined in S45 that the center key 151 has not been depressed, the description of returning to the subroutine execution of the display state switching 1 operation determination process in S44 is taken up and verified. In this case, exactly, when it is determined in S45 that the center key 151 has not been depressed, the processing should be terminated (returned). This is because returning to the subroutine execution of the display state switching 1 operation determination process in S44 and setting one of the display state switching 1 operation flags or pressing the center key 151 while one received mail is selected on the received mail list screen. It will be in a state to wait. In other words, the computer is nailed here and cannot do other processing. If it is determined in S45 that the center key 151 has not been depressed, the computer can perform another process after completing (returning) the process, and can perform this flow again after a predetermined time. The other description should also be described as ending the process (return). However, although the above flowchart is considered to be easier to understand, it is described above, but it is not exactly correct.

  The image data of the display state image displayed by one function other than the shooting function and the display state image of another function, which is switched by the display state switching unit 115, are often image data related to each other. Various image data are assumed as the image data related to each other to be switched by the display state switching unit 115.

  For example, the image data of the calendar for April and the image data in which the schedule data for each day are written in the calendar for April, and the image data for which the schedule data for each day are written in the calendar for April are displayed. Or the image data of the detailed schedule data for the day selected from the above.

  Image data of map list data that is a table of contents of a plurality of map data and image data of detailed data of one map data selected from the map list data, or image data and characters related to the image data Or with data.

  Next, the scroll display will be briefly described. In the text display of the selected received mail illustrated in FIG. 15, the scroll display is initially displayed from “Aiueo” to “Tatsuteto”, and then “Aiueo” disappears. After “Tetsuto” is displayed, “NaniNuneno” illustrated in FIG. 16 is added, and then “Kakikukeko” disappears and “NanaNuneno” is displayed. As the display of “Hahifheho” is added after, the upper information display gradually disappears and the lower information is displayed.

  In the above description, an example has been described in which the display state switching unit 115 switches the display state from the display of the first page to the display of the second page when there is a next page in the text. However, instead of this page switching display, it is also possible to switch to the display state of the scroll display.

Second Embodiment
In the first embodiment, the user displaces the relative angle between the photographing direction of the photographing unit 17 (camera) of the mobile phone 1 (portable electronic device) and the position direction of the subject to be photographed in a predetermined direction by a predetermined angle or more. Thus, the key operation can be omitted, information on at least two screens can be easily displayed on the display unit, and the operability can be improved.

  The second embodiment omits the specific subject displacement determination unit 114 (direction displacement detection unit 1141, angular displacement detection unit 1142, direction determination unit 1143, angle determination unit 1144) required by the first embodiment, and switches the display state. It is a portable electronic device that operates the means 115A, and is further improved in operability. The description of the second embodiment will be described below only for the parts different from the description of the first embodiment.

  Also in the second embodiment, FIGS. 1 and 2 in the first embodiment are the same, and redundant description will not be repeated. FIG. 3 in the first embodiment becomes FIG. 22 in the second embodiment. The specific video designation unit 112 (specific video designation reception unit 1121 and video registration unit 1122) and comparative shot video identification unit 113 (shooting video determination unit 1131 and shooting video stop state determination unit 1132) of the first embodiment described in FIG. ) In FIG. 22 in the second embodiment, the first specific video (first specific subject) designation means 112A (first specific video designation acceptance means 1121A, first video registration means 1122A), second specific video (second It corresponds to a specific subject designation unit 112B (second specific video designation reception unit 1121B, second video registration unit 1122B).

  The specific subject displacement determination unit 114 of the first embodiment described with reference to FIG. 3 corresponds to the specific image detection unit 118 in FIG. 22 of the second embodiment. The display state switching means 115A and the display state switching prohibiting means 116A in FIG. 22 are the same as the display state switching means 115 and the display state switching prohibiting means 116 (switch prohibition designation receiving means 1161, switching prohibition confirmation means 1162) described in FIG. Therefore, the overlapping description will not be repeated.

  In the above description, the first specific video (first specific subject) designation unit 112A (first specific video designation reception unit 1121A, first video registration unit 1122A), the second specific video (second specific subject) designation unit 112B (first 2 specific video designation receiving means 1121B, second video registration means 1122B), specific video detecting means 118, display state switching prohibiting means 116A (switching prohibition designation receiving means 1161A, switching prohibition confirmation means 1162A) are controlled to display the display unit 14. It is described that the image display control means 111A is provided. However, instead of providing the image display control means 111A, the control unit 11 or the like may be provided.

  The specific video detection unit 118 displays the display on the display unit 14 as the first image when the imaging unit 17 detects that the second specific video is captured within a predetermined time (for example, 1 second) following the first specific video. The display state switching means 115A for switching from the state to the second image display state is operated. That is, a specific change mode in which the subject video obtained by the photographing unit changes is adopted as a determination condition for determining whether or not to switch from the first image display state to the second image display state.

  The second embodiment will be described using a specific example. An image obtained by the user capturing in advance the palm of the left hand of the user as the first specific image is registered in advance, and an image acquired by the image capturing unit 17 of the back of the user's left hand as the second specific image. It shall be registered.

  Also in the second embodiment, the display method using the display state switching unit 115A on the e-mail data browsing screen of the mobile phone 1 can be described using the flowcharts of the first embodiment described with reference to FIGS. . As in the first embodiment, the received mail in the e-mail mode will be described, but the same applies to the transmitted mail.

  The display state switching 1 operation determination process and the display state switching 2 operation determination process of the first embodiment described with reference to FIG. 12 are the display state switching 1A operation determination process shown in FIG. The display state switching 2A operation determination process shown in FIG. That is, in the second embodiment, when the imaging unit 17 detects that the second specific video is captured within a predetermined time following the first specific video by the specific video detection unit 118, it is determined that the display state switching 1A is activated. When the photographing unit 17 detects that the first specific video is photographed within the predetermined time following the second specific video by the specific video detection means 118, it is determined that the display state switching 2A is activated.

  Here is the important point. Normally, when the image capturing unit 17 captures an image, the image capturing mode is activated and the camera key 152 shown in FIG. However, the photographed image by the photographing unit 17 to be detected by the specific image detecting unit 118 is not a photographed image photographed by pressing the camera key 152. Since the shooting mode is activated, the image is shot by the shooting unit 17. Therefore, when the specific image detecting unit 118 detects that the second specific image is captured within a predetermined time (for example, 1 second) following the first specific image in the image captured by the image capturing unit 17, The display state switching means 115A for switching the display from the first image display state to the second image display state is operated. First, if the camera key 152 is pressed down for shooting, it is more reliable to directly press down the center key 151 and the return key 157, and this does not improve operability.

  The display state switching 1A operation determination process is a process in which the specific image detection unit 118 determines whether or not the imaging unit 17 has captured a second specific image within a predetermined time following the first specific image. When it is determined that the second specific video is captured within a predetermined time following the first specific video, it is determined that the display state switching 1A is activated, and the display screen of the display unit 14 is switched. This display state switching 1A operation functions in the same manner as when the center key 151 of the operation unit 15 is depressed and a “next” instruction is issued.

  The display state switching 1A operation determination process is a process in which the specific image detection unit 118 determines whether or not the imaging unit 17 has captured the first specific image within a predetermined time following the second specific image. When it is determined that the first specific video is captured within a predetermined time following the second specific video, it is determined that the display state switching 2A is activated, and the display screen of the display unit 14 is switched. This display state switching 2A operation is the same as when the return key 157 of the operation unit 15 is depressed and a "return to the front" instruction is given.

  “Display state switching 1 operation determination process” (S22, S26, S44, S47, S53, S60, S67, S74, S81, S87) and “Display state switching 2 operation determination process” in the flowcharts of FIGS. (S28, S49, S55, S62, S69, S76, S83, S89) are replaced with the “display state switching 1A operation determination processing” and “display state switching 2A operation determination processing” described in FIG. 23 in the second embodiment. The flowcharts of FIGS. 8 to 11 and FIG. 13 can be used as they are in the second embodiment. Therefore, the flow chart of FIGS. 8 to 11 and FIG. 13 is used as it is to explain the flow chart of the display method using the display state switching means 115A in the e-mail data browsing screen of the mobile phone 1 in the case of the second embodiment. Since it overlaps with the description of the first embodiment, it is omitted.

  At present, when the image recognition technology is developed, if this image recognition technology is applied, the specific image detecting means 118 detects that the photographing unit 17 has photographed the second specific image within the predetermined time following the first specific image. It is easy to detect that the photographing unit 17 has photographed the first specific video within the predetermined time following the second specific video.

  The first specific video and the second specific video can be freely set without being limited to the palm image or the back image of the user's left hand. For example, a state in which only one thumb is raised upward from a state in which the left hand is squeezed is registered as a first specific image, and a state in which the thumb and index finger are raised from a state in which the left hand is squeezed is registered as a second specific image. For example, the left hand video is registered as the first specific video, and the watch image of the user wearing the left hand is registered as the second specific video. In short, as the first specific video and the second specific video, a captured video that is easy to distinguish may be adopted. Therefore, simple image recognition is sufficient rather than precise image recognition that requires advanced image recognition technology.

  In addition, the first specific video and the second specific video are not limited to the case where the user specifies, but the mobile phone 1 manufacturer registers in advance in the ROM or RAM memory at the manufacturing stage of the mobile phone 1. You can also. Alternatively, the manufacturer previously stores a plurality of first specific videos, second specific video candidates, or a combination of a plurality of sets of first specific videos and second specific video candidates in the memory at the manufacturing stage of the mobile phone 1. The user can also select and register. For example, a video in which the subject is a 10-yen coin or a 100-yen coin is set as a candidate for the first specific video and the second specific video.

  However, the display state switching prohibition means 116A (switching prohibition designation receiving means 1161A, switching prohibition confirmation means 1162A) is provided for the purpose of preventing the occurrence of a display state switching operation unintended by the user and the malfunction of the display display state switching operation. Also good.

  Instead of providing the display state switching prohibiting means 116A, either the first specific video or the second specific video may not be registered. If either the first specific video or the second specific video is not registered, the display state switching operation does not occur. For this reason, it is not necessary to provide a switching operation between an ON operation when the display state switching operation described in the first embodiment is operated and an OFF operation when the display state switching operation is not performed. Only when the display state switching operation is desired, both the first specific video and the second specific video need only be registered.

  The difference between the second embodiment and the first embodiment can be clearly explained by comparing the first embodiment with how the display state switching means 115A can be operated. In the second embodiment, FIG. 5 (face image of the user's face image of the user 7 from the front) described in the first embodiment is designated as the first specific image, and FIG. Of the face portion, where θ = 30 °) is designated as the second specific image.

  In the first embodiment, it is necessary to know in which direction the mobile phone 1 (portable electronic device) is displaced by a predetermined angle or more. In the second embodiment, the user 7 holds the mobile phone 1 in his / her hand and the shooting direction of the shooting unit 17 is directed toward the face of the user 7, for example, an angle of about 40 ° is shaken from the front to the right. For example, the first specific video is first shot, and the second specific video is soon shot within a predetermined time (for example, one second). Therefore, the display state switching means 115A can be easily operated. In any case, it is only necessary to shake the second specific image at an angle θ (30 °) or more. This is because if the angle θ (30 °) or more is shaken, the second specific image is always captured during that time.

  As an application example of the second embodiment, the number of specified specific videos such as the third specific video, the fourth specific video, the fifth specific video, etc. is further increased, and various operations can be performed by combining these specific videos. By substituting for pressing the key, the convenience of operation can be improved.

  For example, when the specific image detecting unit 118 detects that the image capturing unit 17 has captured the third specific image within the predetermined time following the first specific image, the operation unit A is used as a substitute for pressing the operation key A. When the specific video detecting means 118 detects that the second specific video is captured within the predetermined time following the 3 specific video, the operation key B is used as a substitute.

<Third Embodiment>
In the second embodiment, it is necessary for the user 7 to specify two specific videos, the first specific video and the second specific video. However, only one specific video can be designated, and the display state switching means 115C can be operated more easily.

  The third embodiment is a portable electronic device that activates the display state switching means 115C without requiring the user 7 to specify the second specific video required by the second embodiment, and further improves the operability. It is a thing. The description of the third embodiment will be described below only with respect to the differences from the description of the second embodiment described above.

  In the third embodiment as well, FIGS. 1 and 2 in the first embodiment are the same, and redundant description will not be repeated. FIG. 3 in the first embodiment becomes FIG. 24 in the third embodiment. FIG. 24 is obtained by omitting the second specific video (second specific subject) designation unit 112B (second specific video designation reception unit 1121B, second video registration unit 1122B) described in FIG. 22 in the second embodiment.

  In FIG. 24 of the third embodiment, the first specific video (first specific subject) designation unit 112A (first specific video designation reception unit 1121A, second video registration unit 1122A) of the second embodiment described in FIG. Specific video (specific subject) designation means 112C (specific video designation reception means 1121C, video registration means 1122C) is used. The specific video detection means 118, display state switching means 115A, display state switching prohibition means 116A (switching prohibition designation receiving means 1161A, switching prohibition confirmation means 1162A) of the second embodiment described with reference to FIG. 24, a specific video detection unit 118C, a display state switching unit 115C, a display state switching prohibiting unit 116C (a switching prohibition designation receiving unit 1161C, a switching prohibition confirmation unit 1162C). In FIG. 24 of the third embodiment, the second specific subject (second specific video) designation unit 112B (second specific video designation reception unit 1121B, second video registration unit 1122B) described in FIG. 22 in the second embodiment is used. It is the same except that it is omitted, and repeated explanation will not be repeated.

  In the above description, the specific video (specific subject) designation unit 112C (specific video designation reception unit 1121C, video registration unit 1122C), specific video detection unit 118C, display state switching prohibition unit 116C (switch prohibition designation reception unit 1161C, switching prohibition confirmation) It is described that the means 1162C) is provided in the image display control means 111C for controlling the display of the display unit 14. However, instead of providing the image display control means 111C, the control unit 11 or the like may be provided.

  The specific video detection unit 118C operates the display state switching unit 115C that switches the display on the display unit 14 from the first image display state to the second image display state when the photographing unit 17 detects the specific video.

  The third embodiment will be described using a specific example. Assume that the user has designated in advance as the specific image, as the specific image, the image obtained by the photographing unit 17 photographing the finger of the left hand wearing the ring.

  Also in the third embodiment, the flowcharts described with reference to FIGS. 8 to 11 and 13 are partially used as they are, and the display using the display state switching unit 115C on the electronic mail data browsing screen of the mobile phone 1 of the third embodiment is used. Explain the method. As in the first embodiment, the received mail in the e-mail mode will be described, but the same applies to the transmitted mail.

  The display state switching 1 operation determination process and the display state switching 2 operation determination process of the second embodiment described in FIG. 23 are the display state switching operation determination process shown in FIG. 25 in the third embodiment. That is, in the third embodiment, when the specific video detection unit 118C detects that the shooting unit 17 has shot a specific video, it is determined that the display state switching operation is performed.

  Here is the important point. Normally, when the image capturing unit 17 captures an image, the image capturing mode is activated and the camera key 152 shown in FIG. However, the captured image by the imaging unit 17 that is the detection target of the specific image detecting unit 118C is not a captured image that is captured by pressing the camera key 152. Since the shooting mode is activated, the image is shot by the shooting unit 17. Accordingly, the specific video detection unit 118C switches the display state of the display unit 14 from the first image display state to the second image display state when detecting that the specific video is captured in the video captured by the imaging unit 17. The means 115C is operated. First, if the camera key 152 is pressed down for shooting, it is more reliable to directly press down the center key 151 and the return key 157, and this does not improve operability.

  The display state switching operation determination process is a process for determining whether or not the shooting unit 17 has shot a specific video by the specific video detection unit 118C. When it is determined that the specific video has been shot, it is determined that the display state switching is activated, and the display screen of the display unit 14 is switched. This display state switching operation works in the same manner as when the center key 151 of the operation unit 15 is pressed and a “next” instruction is issued.

  The “display state switching 1 operation determination process” (S22, S26, S44, S47, S53, S60, S67, S74, S81, S87) in the flowcharts of FIGS. 8 to 11 and FIG. 13 is shown in FIG. 25 in the third embodiment. If replaced with the “display state switching operation determination process” described, the flowcharts of FIGS. 8 to 11 and 13 can be partially used as they are in the third embodiment.

  At present, when the image recognition technology is developed, if this image recognition technology is applied, it is easy for the specific video detection means 118C to detect that the specific video is captured by the imaging unit 17.

  In addition, although the case where the image | video of the ring part of a user's left finger was registered was illustrated as a specific image | video, it can set freely a specific image | video not only in this illustrated image | video. For example, it may be possible to reduce malfunctions of the display state switching unit 115C by using a characteristic image that the user normally wears, for example, a captured image of a wristwatch or the like as the specific image. In short, if a captured video that is easy to distinguish is adopted as the specific video, simple image recognition is sufficient, not precise image recognition that requires advanced image recognition technology.

  Further, the specific video is not limited to the case where the user specifies, but the manufacturer of the mobile phone 1 can also be registered in advance in the ROM or RAM memory at the manufacturing stage of the mobile phone 1.

  However, the display state switching prohibition means 116C (switching prohibition designation receiving means 1161C, switching prohibition confirmation means 1162C) is provided for the purpose of preventing the display state switching operation unintended by the user and the malfunction of the display display state switching operation. May be.

  Instead of providing the display state switching prohibiting means 116C, the specific video may not be registered. If the specific video is not registered, the display state switching operation does not occur. For this reason, it is not necessary to provide a switching operation between an ON operation when the display state switching operation described in the first embodiment is operated and an OFF operation when the display state switching operation is not performed. The specific video only needs to be registered when it is desired to operate the display state switching operation.

  As an application example of the third embodiment, the number of specified specific videos, such as the second specific video, the third specific video, the fourth specific video, etc., is further increased, and the shooting unit 17 has shot these specific videos. If it is detected, the convenience of operation can be improved by substituting various operation keys.

  For example, when the photographing unit 17 detects that the first specific image is photographed, it is used as a substitute for pressing the operation key D, and when the photographing unit 17 detects that the second specific image is photographed, the operation key E is pressed. For example, as a substitute for pressing.

  In the first embodiment, the second embodiment, and the third embodiment, the operation of the display state switching means 115, 115A, and 115C in the mobile phone 1 and the configuration that activates this operation have been described. From this description, the display control method for switching the display state in the mobile phone 1 can be used. In addition, a computer-readable program for causing a computer to execute the display control method for switching the display state in the mobile phone 1 can be used. Furthermore, this program can be recorded on a storage medium and sold. As a storage medium for supplying the program code, for example, a floppy (registered trademark) disk, hard disk, optical disk, magneto-optical disk, CD-ROM, CD-R, magnetic tape, nonvolatile memory card, ROM, or the like is used. be able to.

  Further, by executing the program code read by the computer, not only the functions of the above-described embodiments are realized, but also an OS (operating system) operating on the computer based on the instruction of the program code. It goes without saying that a case where the function of the above-described embodiment is realized by performing part or all of the actual processing and the processing is included.

  Further, after the program code read from the storage medium is written into a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer, the function expansion is performed based on the instruction of the program code. It goes without saying that the CPU or the like provided in the board or the function expansion unit performs part or all of the actual processing, and the functions of the above-described embodiments are realized by the processing.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

It is the external view which looked at the cover part 4 and the main-body part 5 from the inner side in the state which opened the folding mechanism part 6 of the mobile telephone 1. FIG. 3 is a schematic functional block diagram illustrating an electrical configuration of the mobile phone 1. FIG. It is a schematic functional block diagram explaining the image display control means 111 in 1st Embodiment. FIG. 3 is a schematic top view of the state in which the user 7 swings (displaces) the mobile phone 1 held by the user's right hand 8 in the right direction by an angle θ ° in the first embodiment as viewed from directly above the user 7. FIG. 4 shows a specific image obtained by photographing the face part of the user 7 at the position 1 (A) by the photographing part 17 of the mobile phone 1. FIG. 4 is a comparative video image in which the photographing unit 17 of the mobile phone 1 photographs the face portion of the user 7 at the position 1 (B). In FIG. 4, the photographing unit 17 of the mobile phone 1 is a comparatively photographed image obtained by photographing the face part of the user 7 at the side position just beside. It is a flowchart for demonstrating the display switching method using the display state switching means 115 in the email data browsing screen of the mobile telephone 1 in 1st Embodiment. FIG. 9 is a flowchart subsequent to the flowchart of the display switching method shown in FIG. 8. 10 is a flowchart continued from the flowchart of the display switching method shown in FIG. 9. FIG. 11 is a flowchart continued from the flowchart of the display switching method shown in FIG. 10. It is a flowchart for demonstrating the subroutine program of the display state switching 1 operation | movement determination process in 1st Embodiment, and the display state switching 2 operation | movement determination process. It is a flowchart for demonstrating the subroutine program of the received mail text display process in 1st Embodiment. 4 is an exemplary image of a received mail list screen displayed on the display unit 14. It is an exemplary image of the first page of received mail text data displayed on the display unit. It is an exemplary image of the second page of received mail text data displayed on the display unit. 6 is an exemplary image of an attached file displayed on the display unit 14. 4 is an exemplary image of a new mail creation screen displayed on the display unit 14. 4 is an exemplary image of a destination edit screen displayed on the display unit 14. It is an example image of the subject edit screen displayed on the display unit. It is an example image of the mail text edit screen displayed on the display unit. It is a general | schematic functional block diagram explaining the image display control means 111A in 2nd Embodiment. It is a flowchart for demonstrating the subroutine program of the display state switching 1A operation | movement determination process in 2nd Embodiment, and the display state switching 2A operation | movement determination process. It is a general | schematic functional block diagram explaining the image display control means 111C in 3rd Embodiment. It is a flowchart for demonstrating the subroutine program of the display state switching operation | movement determination process in 3rd Embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Cellular phone, 11 Control part, 14 Display part, 15 Operation part, 17 Shooting part, 111, 111A, 111C Display image control means, 112, 112C Specific video designation means, 112A 1st specific video designation means, 112B 2nd specification Video designation means, 113 comparative photographing video identification means, 114 specific subject displacement determination means, 115, 115A, 115C display state switching means, 116, 116A, 116C display state switching prohibition means, 118, 118C specific video detection means.

Claims (14)

Display means for displaying an image;
Photographing means for photographing the subject;
An image display unit that controls to display a predetermined image on the display unit when the image capturing unit is activated and can be controlled to display in either the first image display state or the second image display state. Display control means;
Determination condition storage means for storing a determination condition for switching from the first image display state to the second image display state based on a subject image obtained by the photographing means;
A determination unit that determines whether or not a subject image obtained by the shooting unit when the user uses the shooting unit matches a determination condition stored in the determination condition storage unit;
The image display control unit includes a display state switching unit that switches from the first image display state to the second image display state on condition that the determination unit determines that the determination condition is met. Electronics. A judgment condition video accepting unit for accepting a judgment condition video designated by a user for use as the judgment condition from the video photographed by the photographing unit;
The determination condition storage means stores the determination condition video received by the determination condition video reception means as an image used for the determination condition,
The determination means satisfies the determination condition depending on whether or not a subject video obtained by the user using the shooting means includes a determination condition video stored in the determination condition storage means. The electronic device according to claim 1, wherein it is determined whether or not to perform. The determination condition storage means stores, as the determination condition, a specific change mode in which the subject video obtained by the photographing means changes,
The determination unit is configured to determine whether the subject image obtained by the shooting unit when the user uses the shooting unit has changed in the specific change mode stored in the determination condition storage unit. The electronic device according to claim 1, wherein it is determined whether or not a determination condition is met. Judgment condition video accepting means for accepting a judgment condition video designated by a user to be used as the judgment condition from among the videos photographed by the photographing means;
A comparative shooting video specifying unit that specifies one of the shooting videos shot by the shooting unit as the subject included in the determination condition video as a comparative shooting video;
The determination condition storage means stores the determination condition video received by the determination condition video reception means and the comparative shooting video specified by the comparative shooting video specifying means as the video used for the determination condition,
The determination means includes
Due to the displacement of the photographing direction of the photographing means when photographing the comparative photographing image with respect to the photographing direction of the photographing means when photographing the judgment condition video, the photographing direction when photographing the comparative photographing video photographs the judgment condition video. Shooting direction determination means for determining whether or not the predetermined shooting direction is displaced from the shooting direction at the time,
Due to the displacement of the shooting direction of the shooting means when shooting the comparative shooting video with respect to the shooting direction of the shooting means when shooting the judgment condition video, the shooting angle when shooting the comparative shooting video is when shooting the specific video A shooting angle determination means for determining whether or not a predetermined angle or more is displaced from the shooting angle of,
It is determined by the shooting direction determination means that the shooting direction when shooting the comparatively shot video is displaced in a predetermined direction from the shooting direction when shooting the judgment condition video, and the comparative shooting is determined by the shooting angle determination means. 2. It is determined whether or not the determination condition is met depending on whether or not it is determined that a shooting angle at the time of shooting a video is displaced from the shooting angle at the time of shooting the video by a predetermined angle or more. The electronic device as described in. Undisplayed image presence detecting means for detecting whether or not undisplayed image data that cannot be displayed on the display means exists in the image displayed on the display means in the first image display state. In addition,
When the non-displayed image presence detecting unit detects the presence of the non-displayed image data, the display state switching unit switches to a state of displaying an image of the non-displayed image data as the second image display state. The electronic apparatus in any one of Claims 1-4. Undisplayed image presence detecting means for detecting whether or not undisplayed image data that cannot be displayed on the display means exists in the image displayed on the display means in the first image display state. In addition,
When the non-displayed image presence detecting unit detects the presence of the non-displayed image data, the display state switching unit sets the display unit to a scroll display to display the non-displayed image data as the second image display state. The electronic device according to claim 1, wherein the electronic device is switched to a display state that enables scroll display. Display state switching operation means for switching from the first image display state to the second image display state by a user operation;
The electronic device according to claim 1, further comprising a switching prohibition designation receiving unit that receives a prohibition designation by a user of the switching operation of the display state switching unit. Image editing operation means for editing the data content of the image displayed in the first image display state by a user operation;
Image editing operation detection means for detecting whether or not the user is editing the data content of the image displayed in the first image display state using the image editing operation means;
When the image editing operation detection unit detects that editing is in progress, the image editing operation detection unit further includes a switching prohibiting unit that prohibits the switching operation of the display state switching unit until the image editing operation detection unit detects the end of editing. The electronic device in any one of Claims 1-6. A switching prohibition confirmation unit for confirming whether the switching operation of the display state switching unit is prohibited;
The display state switching unit further switches from the first image display state to the second image display state after further confirming that the switching operation of the display state switching unit is not prohibited by the switching prohibition confirmation unit. Item 9. The electronic device according to Item 7 or 8.   The electronic device according to claim 1, wherein the electronic device is a portable type that can be held and operated. The photographing means includes
Located near the display means,
The electronic device according to claim 1, wherein a direction of a user viewing the display unit is a direction to be photographed. A display control method for an electronic device comprising a display means for displaying an image and a photographing means for photographing a subject,
The step of performing a control to display a predetermined image on the display means in the photographing ready state in which the photographing means is activated, and the display controllable image in either the first image display state or the second image display state A display control step;
A determination condition storing step for storing a determination condition for switching from the first image display state to the second image display state based on a subject image obtained by the photographing unit;
A determination step of determining whether or not a subject image obtained by the shooting means by using a shooting means by a user matches a determination condition stored in the determination condition storage step,
The image display control step includes a display state switching step of switching from the first image display state to the second image display state on the condition that the determination that the determination condition is satisfied is performed by the determination step. Electronic device display control method. A computer-readable program that causes a computer to execute a display control method for an electronic device that includes a display unit that displays an image and a photographing unit that captures a subject.
The step of performing a control to display a predetermined image on the display means in the photographing ready state in which the photographing means is activated, and the display controllable image in either the first image display state or the second image display state A display control step;
A determination condition storing step for storing a determination condition for switching from the first image display state to the second image display state based on a subject image obtained by the photographing unit;
The computer executes a determination step for determining whether or not the subject image obtained by the shooting means matches the determination condition stored in the determination condition storage step when the user uses the shooting means. ,
In the image display control step, a display state switching step for switching from the first image display state to the second image display state is performed on the computer on the condition that the determination step determines that the determination condition is met. A computer-readable program to be executed. A recording medium that records a computer-readable program that causes a computer to execute a display control method of an electronic device that includes a display unit that displays an image and a photographing unit that captures a subject.
The step of performing a control to display a predetermined image on the display means in the photographing ready state in which the photographing means is activated, and the display controllable image in either the first image display state or the second image display state A display control step;
A determination condition storing step for storing a determination condition for switching from the first image display state to the second image display state based on a subject image obtained by the photographing unit;
The computer executes a determination step for determining whether or not the subject image obtained by the shooting means matches the determination condition stored in the determination condition storage step when the user uses the shooting means. ,
In the image display control step, a display state switching step for switching from the first image display state to the second image display state is performed on the computer on the condition that the determination step determines that the determination condition is met. A recording medium recording a computer-readable program to be executed.

Images