WO2014112273A1

WO2014112273A1 - Display device, method for controlling display device, and recording medium

Info

Publication number: WO2014112273A1
Application number: PCT/JP2013/083775
Authority: WO
Inventors: 寿生根本
Original assignee: シャープ株式会社
Priority date: 2013-01-15
Filing date: 2013-12-17
Publication date: 2014-07-24
Also published as: JP2014137646A

Abstract

According to the present invention, a display terminal (1) is provided with: a terminal attitude determination unit (11) for determining an attitude and detecting a change in the attitude on the basis of information from an acceleration sensor (3); a screen rotation unit (14) for changing a display direction in response to the attitude; and a rotation suppression control unit (13) for determining whether a screen suppression operation has been implemented; the screen rotation unit rotating the screen in response to the attitude when change in the attitude is detected and the operation is determined to have not been implemented.

Description

Display device, display device control method, and recording medium

The present invention relates to a display device that changes a display direction in accordance with the attitude of the display device.

2. Description of the Related Art Conventionally, a display device having a function (hereinafter referred to as a screen rotation function) that automatically changes the display direction of an image or characters according to the orientation of the display device is known. The screen rotation function is realized by the techniques disclosed in Patent Documents 1 to 3, for example.

Patent Document 1 discloses a technique for performing screen display control based on the orientation of the display surface with respect to the direction of gravity. Japanese Patent Application Laid-Open No. 2005-228561 discloses a technique for switching an image according to a tilt instead of a screen rotation in response to a touch operation in an image display device that rotates the screen according to the tilt of the touch panel. Patent Document 3 discloses a technique for preventing the tilt of the casing from being reflected in the display of information on the display screen during the period in which the movement of the center of gravity of the casing is detected.

Japanese Patent Publication “JP 2012-58847 A (published on March 22, 2012)” Japanese Patent Publication “Japanese Patent Laid-Open No. 2010-9575 (published Jan. 14, 2010)” Japanese Patent Publication “JP 2010-86192 A” (published on April 15, 2010) Japanese Patent Publication “Japanese Patent Laid-Open No. 2008-177819” (published July 31, 2008) Japanese Patent Publication “Japanese Patent Laid-Open No. 2011-258191 (published on December 22, 2011)”

Since the screen rotation function is installed, the user can select a portrait display or a landscape display by simply placing a rectangular display device such as a smartphone or tablet PC in a desired posture.

On the other hand, a situation in which the orientation of the display device does not match the display direction desired by the user (portrait display or landscape display) is also assumed. That is, there is a situation where the user does not want to rotate the screen even when the attitude of the display device changes.

For example, it is assumed that the user goes to a state of lying down sideways from a state of holding a display device displaying a portrait display. In this case, the display device determines that the posture of the own device is horizontally long based on the direction of gravity and performs a horizontally long display (for example, from the upper diagram of FIG. To the figure). As described above, since the user lies down sideways and wants to maintain the portrait display, there is a disadvantage that the orientation of the display device is determined to be landscape and is changed to landscape display.

Or, for example, inconvenience occurs when viewing a photograph displayed on the display device. First, information indicating the vertical direction of a photograph is generally given to the photograph based on the attitude of the digital camera when the photograph is taken. In the example of FIG. 4A, the photograph 200 is handled as a horizontally long photograph in which two long sides are determined to be up and down.

The conventional display device 50 having the screen rotation function displays the photograph 200 in FIG. 4B or FIG. 4C based on the attitude of the device itself and the vertical information held by the photograph 200. To display. In other words, regardless of whether the display device 50 is in the portrait or landscape orientation, the original vertical direction of the photograph 200 is displayed so as to always coincide with the top and bottom determined based on the direction of gravity.

Here, the vertical direction recognized by the user from the content of the photograph 200 does not necessarily match the vertical direction given to the photograph 200. For example, the user wants to display the photograph 200 based on the recognized vertical direction by recognizing the head side of the doll shown in the photograph 200 as the upper side and the foot side as the lower side. However, since the vertical direction originally given to the photograph 200 is maintained as described above, the display mode desired by the user ((d) in FIG. 4) is obtained regardless of how the display device 50 is moved. Inconvenience that the user feels inconvenience.

The technique of Patent Document 2 suppresses the screen rotation function by a user operation only during the switching display of image data. The technique of Patent Document 3 suppresses the screen rotation function only during a period in which the movement of the center of gravity of the housing is detected. That is, the user cannot easily suppress the screen rotation function at an arbitrary use scene or at an arbitrary timing. It should be noted that the image rotation function may be disabled to suppress unintentional rotation, but it is often desirable that the screen rotation function is enabled, and it may be enabled or disabled depending on the frequently changing situation. Switching is not practical for the user because the operation becomes complicated.

It is preferable that the screen rotation function can be suppressed at a user's desired timing by a simple operation. Furthermore, it is preferable that the user can easily return from the suppressed state at a timing desired by the user.

The present invention has been made in view of the above-described problems, and an object thereof is to provide a display device or the like that can temporarily suppress the screen rotation function.

In order to solve the above problems, a display device according to one embodiment of the present invention is obtained from a sensor that detects the tilt of the display device in the display device that changes the display direction of the display unit according to the posture of the display device. Based on the received information, a change in the posture of the own device is detected and displayed on the display unit according to the posture of the device determined by the terminal posture determining means for determining the posture and the terminal posture determining means. Screen rotation means for changing the display direction by rotating the screen, and whether or not a specific operation for instructing suppression of the screen rotation function executed by the screen rotation means is performed on the own device The screen rotation means detects a change in the attitude of the device itself by the terminal attitude determination means, and the specific operation is performed by the suppression operation acceptance means. If it is determined that not to rotate the screen in accordance with the attitude of the device itself.

In order to solve the above-described problem, a control method according to one embodiment of the present invention is a control method for a display device that changes a display direction of a display unit in accordance with the orientation of the display device. Based on the information acquired from the sensor for detecting the position of the display device, a change in the posture of the display device is detected, and a terminal posture determination step for determining the posture, and the posture of the display device determined in the terminal posture determination step The screen rotation step for changing the display direction by rotating the screen displayed on the display unit according to the screen rotation, and the screen rotation function executed in the screen rotation step is suppressed prior to the screen rotation step. A deterrence operation accepting step for judging whether or not a specific operation for instructing is performed on the display device. In the screen rotation step, the terminal posture determination step is performed. When a change in the attitude of the display device is detected and it is determined that the specific operation is not performed in the suppression operation accepting step, the screen is rotated according to the attitude of the display device. .

According to one aspect of the present invention, it is possible to realize a display device that can temporarily suppress the screen rotation function.

It is a functional block diagram which shows the principal part structure of the display terminal which concerns on embodiment of this invention. It is a figure explaining operation | movement of the said display terminal. It is a flowchart which shows the flow of the process which the said display terminal performs. It is a figure explaining the subject of a prior art.

Embodiment 1
Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS.

[Configuration of Display Terminal 1]
FIG. 1 is a functional block diagram showing a main configuration of the display terminal 1 according to the present embodiment. The display terminal 1 is a display device having a screen rotation function, and is typically a portable information processing device such as a mobile phone, a smartphone, or a tablet PC.

The display terminal 1 executes a screen rotation function when the attitude of the display terminal 1 is changed with respect to the direction of gravity. On the other hand, the display terminal 1 does not execute the screen rotation function regardless of the orientation of the display terminal 1 when an operation for suppressing the screen rotation function (hereinafter referred to as rotation suppression operation) is received from the user. That is, the display terminal 1 can temporarily stop the screen rotation based on the screen rotation function in response to receiving the rotation suppression operation.

The display terminal 1 includes a storage unit 2, an acceleration sensor 3, an operation unit 4, a display unit 5, and a control unit 10, as shown in FIG.

The storage unit 2 is configured by a non-volatile storage device such as a flash memory, and particularly stores the rotation function setting information 21 and the rotation suppression flag 22. In addition, the storage unit 2 is an area configured by a volatile storage device such as a RAM (Random Access Memory) as a work area for temporarily storing data in the course of execution of various programs by the control unit 10. You may have.

The acceleration sensor 3 can measure gravitational acceleration, and is a sensor for detecting the attitude of the display terminal 1, particularly the inclination of the display surface of the display unit 5 with respect to the direction of gravity. As a sensor for detecting the tilt of the display screen, in addition to the acceleration sensor 3, for example, a gyro sensor, a tilt sensor, or the like may be used.

The operation unit 4 receives an operation of the user of the display terminal 1, particularly the rotation suppression operation, and is typically a physical key, a keyboard, a touch panel, or the like.

The display unit 5 includes a flat display panel such as a liquid crystal panel or an organic EL panel, and displays information processed by the display terminal 1, images, and the like. The display unit 5 may also be configured to serve as the operation unit 4 as a touch panel.

In the present embodiment, when the operation unit 4 and the display unit 5 are touch panels, as the rotation suppression operation, a long touch on the touch panel surface, that is, a touch panel of an operation body (user's finger, palm, touch pen, etc.) Adopting an operation that keeps touching. Here, the position of the finger touched on the touch panel as the rotation suppression operation overlaps with the position of the object on which the display terminal 1 performs some action, and the display terminal 1 performs the rotation suppression operation with another action (for example, web There is a possibility that the action is mistakenly recognized as an execution instruction operation (such as an action of opening a browser link). For this reason, any touch operation may be employed as the rotation suppression operation, but it is preferable to employ a touch operation different from normal operations (tap, flick, pinch in / out, etc.) on the display terminal 1. For example, an operation for holding the touch panel surface with a palm may be a rotation suppression operation. Alternatively, an operation of long touching the touch panel with two fingers such as the thumbs of both hands may be a rotation suppression operation.

The control unit 10 controls the entire display terminal 1 and can be configured by, for example, a CPU (Central Processing Unit). The control unit 10 includes a terminal attitude determination unit 11, a setting determination unit 12, a rotation suppression control unit 13, and a screen rotation unit 14.

The terminal posture determination unit 11 detects a change in the posture of the display terminal 1 based on the inclination of the display unit 5 detected by the acceleration sensor 3, and determines the changed posture. Specifically, the terminal posture determination unit 11 detects the terminal posture when the inclination of a predetermined reference axis defined on the display surface of the display unit 5 with respect to the direction of gravity detected by the acceleration sensor 3 changes more than a certain level. Is determined to have changed. Then, the posture changed according to the inclination is determined. When detecting a change in the attitude of the terminal, the terminal attitude determination unit 11 transmits a determination result to each unit of the control unit 10.

The setting determination unit 12 reads the rotation function setting information 21 from the storage unit 2 and determines whether the screen rotation function is set to valid or invalid. When the setting determination unit 12 determines that the screen rotation function is valid, the setting determination unit 12 transmits the determination result to the rotation suppression control unit 13 and the screen rotation unit 14. Note that the display terminal 1 may be configured to switch between valid and invalid of the rotation function setting information 21 based on a user operation received by the operation unit 4. Alternatively, when the display terminal 1 cannot switch between valid / invalid of the screen rotation function and the screen rotation function is always valid, the display terminal 1 does not include the setting determination unit 12 and the rotation function setting information 21. May be.

The rotation suppression control unit 13 controls the rotation suppression flag 22 stored in the storage unit 2 according to the presence / absence of the rotation suppression operation input via the operation unit 4 when the screen rotation function is valid. To do. The rotation suppression flag 22 is referred to by the screen rotation unit 14 in order to determine whether or not to rotate the display screen. When it is determined that the rotation suppression operation is performed, the rotation suppression control unit 13 sets the rotation suppression flag 22 to be valid. The rotation suppression control unit 13 does not set the rotation suppression flag 22 to be invalid and maintains the validity only when the rotation suppression operation is released (the finger is released from the touch panel). On the other hand, the rotation suppression control unit 13 sets the rotation suppression flag 22 to be invalid when the rotation suppression operation is canceled and a change in the attitude of the display terminal 1 is detected.

The screen rotation unit 14 performs a screen rotation function according to the attitude of the display terminal 1. In the present embodiment, when the determination result that the screen rotation function is valid is received from the setting determination unit 12 and the rotation suppression flag 22 is set to invalid, the display direction of the display unit 5 is changed. Specifically, the screen rotation unit 14 rotates the display screen based on the changed posture determined by the terminal posture determination unit 11 so that the display direction is suitable for the posture. For example, when it is determined that the display terminal 1 has been rotated 90 degrees clockwise from the vertically long position to the horizontally long position, the screen rotation unit 14 rotates the display screen 90 degrees counterclockwise.

[Processing flow of display terminal 1]
With reference to FIG. 2 and FIG. 3, the flow of processing in the display terminal 1 will be described. FIG. 2 is a diagram for explaining the operation of the display terminal 1. FIG. 3 is a flowchart showing a flow of processing executed by the display terminal 1.

The terminal posture determination unit 11 detects a change in the posture of the display terminal 1 based on the inclination of the display unit 5 detected by the acceleration sensor 3 (YES in S1), and determines the post-change posture. For example, when the display terminal 1 changes from the vertically long posture 100a illustrated in FIG. 2 to the horizontally long posture 100c through the posture 100b, the terminal posture determination unit 11 has the original left end of the display surface of the display unit 5 set to the top. It is determined that the posture has changed so that the right end is the ground.

Next, the setting determination unit 12 refers to the rotation function setting information 21 and determines whether or not the rotation function setting is valid (S2). When the rotation function setting information 21 is valid (YES in S2), the determination result is transmitted to the rotation suppression control unit 13 and the screen rotation unit 14.

Next, the rotation suppression control unit 13 determines whether or not there is a rotation suppression operation (S3). When the rotation suppression operation is performed by the user (YES in S3), the rotation suppression control unit 13 sets the rotation suppression flag 22 to be valid (S4). As a result, the screen rotation unit 14 does not perform the screen rotation function even if the terminal attitude change is present and the rotation function setting is valid, and the screen rotation function is suppressed (S5). As shown in FIG. 2, in the postures 100a to 100c, since the user's thumb is continuously in contact with the touch panel and the rotation suppression operation is performed, the screen rotation unit 14 changes the display direction in the posture 100a. This is maintained even after the posture 100c is changed.

Thereafter, the screen rotation unit 14 displays the display direction maintained in S5 (for example, posture 100c) while the rotation suppression control unit 13 does not detect the cancellation of the rotation suppression operation in S6 (NO in S6), or The process continues while the terminal attitude determination unit 11 does not detect a change in the attitude of the display terminal 1 in S7 (NO in S7). For example, if the user removes the thumb that was held down until the posture 100c in FIG. 2 from the touch panel, the rotation suppression control unit 13 determines that the rotation suppression operation has been released (YES in S6, posture 100d in FIG. 2). ). However, in the posture 100d, a change in the posture of the display terminal 1 is not detected (NO in S7). In this case, since the rotation suppression flag 22 is maintained while being effectively set, the screen rotation unit 14 maintains the display direction in the posture 100c in the posture 100d (S5).

On the other hand, when the rotation suppression control unit 13 detects the release of the rotation suppression operation and the terminal posture determination unit 11 detects a change in the posture of the display terminal 1 (YES in S6 and YES in S7), the rotation suppression control The unit 13 sets the rotation suppression flag 22 to be invalid (S8).

After the rotation suppression flag 22 is set to invalid, if the rotation function setting is valid and there is no rotation suppression operation (YES in S2, NO in S3), the screen rotation unit 14 executes the screen rotation function (S9). . For example, when it is detected from the posture 100c of FIG. 2 that the finger has been released and the display terminal 1 is detected to be rotated 90 degrees clockwise as in the posture 100e, the screen rotation unit 14 The display direction is changed according to the posture 100e. In other words, the display screen is rotated in the direction in which the top and bottom are reversed from the display direction in the posture 100a. In the present embodiment, when the setting determination unit 12 determines that the rotation function setting information 21 is invalid (NO in S2), the screen rotation unit 14 does not execute the screen rotation function in the first place (S10). .

<< Embodiment 2 >>
The control blocks of the display terminal 1 (in particular, the terminal attitude determination unit 11, the rotation suppression control unit 13, and the screen rotation unit 14) may be realized by a logic circuit (hardware) formed in an integrated circuit (IC chip) or the like. Alternatively, it may be realized by software using a CPU (Central Processing Unit).

In the latter case, the display terminal 1 includes a CPU that executes instructions of a program that is software that implements each function, a ROM (Read Only Memory) in which the program and various data are recorded so as to be readable by a computer (or CPU), A storage device (these are referred to as “recording media”), a RAM (Random Access Memory) for expanding the program, and the like are provided. And the objective of this invention is achieved when a computer (or CPU) reads the said program from the said recording medium and runs it. As the recording medium, a “non-temporary tangible medium” such as a tape, a disk, a card, a semiconductor memory, a programmable logic circuit, or the like can be used. The program may be supplied to the computer via an arbitrary transmission medium (such as a communication network or a broadcast wave) that can transmit the program. The present invention can also be realized in the form of a data signal embedded in a carrier wave in which the program is embodied by electronic transmission.

[Summary]
The display device (display terminal 1) according to aspect 1 of the present invention is obtained from a sensor (acceleration sensor 3) that detects the tilt of the own device in the display device that changes the display direction of the display unit according to the posture of the own device. Based on the received information, the posture of the own device is determined, and a terminal posture determination unit (terminal posture determination unit 11) that detects a change in posture, and the posture of the own device determined by the terminal posture determination unit Screen rotation means (screen rotation section 14) for changing the display direction by rotating the screen displayed on the display section (5), and specification for instructing suppression of the screen rotation function executed by the screen rotation means And an operation for receiving rotation (rotation suppression operation / long touch) is performed on the device itself. The screen rotation means includes the terminal attitude determination. To the means What change in the attitude of the device itself is detected, and, when the specific operation is determined not to be performed by the suppression operation acceptance means to rotate the screen in accordance with the attitude of the device itself.

A control method according to aspect 2 of the present invention is a control method for a display device that changes the display direction of the display unit in accordance with the orientation of the display device, and is information acquired from a sensor that detects the tilt of the display device. Based on the terminal posture determination step for determining the posture of the display device and detecting a change in the posture, and the display device according to the posture of the display device determined in the terminal posture determination step. A screen rotation step for changing the display direction by rotating the screen, and a specific operation for instructing suppression of the screen rotation function executed in the screen rotation step prior to the screen rotation step is the display A deterrence operation accepting step for judging whether or not the device is implemented, and in the screen rotation step, the change in the orientation of the display device in the terminal orientation judging step It is detected, and, when the specific operation by the suppression operation receiving step is determined not to be performed, to rotate the screen in accordance with the attitude of the display device.

According to the configuration and method described above, the screen rotation unit executes the screen rotation function even when a change occurs in the orientation when a specific operation is performed when the orientation of the display device changes. do not do. That is, the display direction before the posture changes is maintained on the display unit. As described above, in order to prevent the screen rotation unit from executing the screen rotation function, the user instructs to suppress the screen rotation function when the user wants to maintain the display direction even if the orientation of the display device is changed. It is only necessary to carry out certain operations. While this specific operation is being performed, the screen rotation function of the display device is temporarily inhibited. In this way, a display device that can temporarily suppress the screen rotation function can be realized.

For example, the user can easily obtain the display mode shown in FIG. 4D simply by performing a specific operation when changing the attitude of the display device from the state shown in FIG.

The display device according to aspect 3 of the present invention is the display device according to

aspect

1 or 2, wherein the screen rotation unit is configured to perform the identification by the suppression operation reception unit even when a change in the posture of the own device is detected by the terminal posture determination unit. If it is determined that the operation has been performed, the display orientation before the change is maintained, and then, even if it is determined that the specific operation is no longer performed by the suppression operation accepting unit, The display direction is maintained until a change in the posture of the apparatus is further detected.

According to the above configuration, the screen rotation means may rotate the screen as long as there is no change in the orientation of the display device even after the rotation suppression operation is canceled after the rotation suppression operation has been performed. Do not perform the function. Thereby, since the user is not forced to continue a specific operation all the time in order to maintain the display direction, the operability of the user can be improved. On the other hand, the temporary suppression of the screen rotation function can be canceled simply by the user stopping the specific operation and changing the orientation of the display device. As a result, the display device can easily return from the state where the screen rotation function is suppressed at a timing desired by the user.

The display device according to aspect 4 of the present invention, in the above aspects 1 to 3, shows the validity meaning the state where the screen rotation function should be inhibited or the invalidity meaning the state where the screen rotation function should not be inhibited. A storage unit (2) for storing rotation suppression information (rotation suppression flag 22) is provided, and the suppression operation accepting unit sets the rotation suppression information valid when the specific operation is performed. When a change in the posture of the device is detected by the terminal posture determination unit, the rotation suppression information is set to be invalid when the specific operation is not performed, and the screen rotation unit When the setting is invalid, the screen may be rotated according to the posture of the device itself.

According to the above configuration, when the orientation of the display device changes, the screen rotation means executes the screen rotation function even if the orientation changes, if the rotation suppression information is set to be valid. do not do. Specifically, the suppression operation accepting unit effectively sets the rotation suppression information in order to temporarily suppress the screen rotation function when a specific operation is performed by the user. Here, the effective setting is not canceled only by solving the specific operation. That is, as long as the attitude of the display device does not change, the screen is not rotated and the display direction is maintained. Thereby, the user is not forced to continue the specific operation.

On the other hand, the suppression operation accepting unit cancels the valid setting when a change in posture is detected and when the specific operation is not performed. That is, the temporary suppression of the screen rotation function can be canceled simply by the user stopping the specific operation and changing the orientation of the display device. As a result, the display device can be restored from the state in which the screen rotation function is suppressed by a simple operation of the user.

In the display device according to aspect 5 of the present invention, in any of the above aspects 1 to 4, the display unit and the operation unit (4) that receives the specific operation constitute a touch panel, and the suppression operation reception unit includes the touch panel and You may determine with the said specific operation being implemented by the contact with the operation body continuing.

The display device according to aspect 6 of the present invention is the display apparatus according to aspect 5, wherein the suppression operation accepting unit is configured to perform the specific operation when the touch panel and one or more fingers or palms of the user are continuously in contact. It may be determined that it has been implemented.

Thereby, the user can suppress the screen rotation function at a desired timing by a simple touch operation on the touch panel.

The display device according to each aspect of the present invention may be realized by a computer. In this case, the display device is realized by the computer by causing the computer to operate as each unit included in the display device. A control program and a computer-readable recording medium on which the control program is recorded also fall within the scope of the present invention.

The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. Is also included in the technical scope of the present invention. Furthermore, a new technical feature can be formed by combining the technical means disclosed in each embodiment.

The present invention is applicable to a display device having a function of automatically rotating a display screen in accordance with the orientation of the display device, and in particular, a smartphone, a tablet PC, a mobile phone, a digital camera, a game machine, an electronic dictionary, an electronic dictionary The present invention can be suitably applied to a small display device having excellent portability such as a book reader and a PDA (Personal Digital Assistant).

1 Display terminal (display device)
2 Storage unit 3 Acceleration sensor (sensor)
4 operation unit 5 display unit 10 control unit 11 terminal posture determination unit (terminal posture determination unit)
12 Setting Determination Unit 13 Rotation Suppression Control Unit (Suppression Operation Accepting Unit)
14 Screen rotation unit (screen rotation means)
21 Rotation function setting information 22 Rotation suppression flag (rotation suppression information)

Claims

In the display device that changes the display direction of the display unit according to the posture of the own device,
A terminal posture determination means for determining the posture of the device based on information acquired from a sensor that detects the tilt of the device, and detecting a change in the posture;
Screen rotation means for changing the display direction by rotating the screen displayed on the display unit according to the attitude of the own device determined by the terminal attitude determination means;
A suppression operation accepting unit that determines whether or not a specific operation for instructing suppression of the screen rotation function executed by the screen rotation unit is performed on the own device;
The screen rotation means detects the posture of the own apparatus when a change in the attitude of the own apparatus is detected by the terminal attitude determination means and the specific operation is determined not to be performed by the suppression operation accepting means. A display device characterized by rotating a screen in accordance with the display.
If the terminal rotation determination means detects a change in the attitude of the device itself, the screen rotation means determines that the specific operation has been performed by the suppression operation reception means, and the display direction before the change After that, even if it is determined that the specific operation is no longer performed by the suppression operation accepting unit, the display orientation is maintained until a change in the posture of the own device is further detected by the terminal posture determining unit. The display device according to claim 1.
The display unit and the operation unit that receives operations by the operation body constitute a touch panel,
The display according to claim 1, wherein the suppression operation accepting unit determines that the specific operation is being performed by continuing contact between the touch panel and the operating body. apparatus.
A control method for the display device that changes the display direction of the display unit according to the orientation of the display device,
A terminal posture determination step for determining a posture of the display device based on information acquired from a sensor for detecting a tilt of the display device, and detecting a change in the posture;
A screen rotation step for changing the display direction by rotating the screen displayed on the display unit according to the attitude of the display device determined in the terminal attitude determination step;
Prior to the screen rotation step, a suppression operation acceptance for determining whether or not a specific operation for instructing suppression of the screen rotation function executed in the screen rotation step is performed on the display device. With steps,
In the screen rotation step, when a change in the posture of the display device is detected in the terminal posture determination step and it is determined that the specific operation is not performed in the suppression operation reception step, A display device control method, comprising: rotating a screen according to a posture of a display device.
A computer-readable recording medium that records a control program for causing a computer to function as the display device according to any one of claims 1 to 3 and that causes the computer to function as each of the means. .