JP6320220B2 - Electronic device, display control method and program for display screen of electronic device - Google Patents

Description

  The present invention relates to an electronic device, a display control method for a display screen of the electronic device, and a program.

  Most portable electronic devices are battery-driven using a primary battery or a secondary battery as a power source. For this reason, various proposals have been made in the past to reduce the battery consumption by putting the electronic device in a power saving state when the user is not substantially using it. In particular, in an electronic device having a display screen, it has been conventionally performed to effectively save power by displaying an image on the display screen and not displaying an image on the display screen.

  For example, in a portable personal computer such as a notebook personal computer, there is no operation input by an input device such as a keyboard or a mouse by a monitoring timer as described in, for example, Japanese Patent Application Laid-Open No. 2001-350549. When it is detected that the state has continued for a predetermined time or longer, the state where the image is displayed on the display screen is shifted to the power saving state where no image is displayed on the display screen. I have to.

  Japanese Patent Application Laid-Open No. H10-228707 discloses a power saving mode when the line-of-sight detecting means detects that the user is watching the display screen even when the state of no operation input by the input device continues for a predetermined time or longer. An invention for preventing the transition to the state is also described.

  In addition, in this type of electronic device having a display screen, it is possible to switch the viewing angle of the display screen in view of increasing opportunities for others to look into the display screen, such as when used outdoors. This is disclosed in Patent Document 2 (WO2006 / 106662A1). Further, Patent Document 3 (Japanese Patent Laid-Open No. 2012-129701) discloses that display information displayed on a display screen is displayed by another person on the basis of information related to the number of other persons' lines of sight and the angle of each line-of-sight direction. A technique for making it impossible to read is disclosed.

JP 2001-350549 A WO2006 / 106662A1 JP 2012-129701 A

  In Patent Document 1 described above, the difference in display content (display content) displayed on the display screen of the electronic device where the electronic device is used is not considered, and is uniform regardless of the use location and display content. In addition, transition control to a power saving state is performed.

  However, there are various places where electronic devices can be used, such as homes, companies (workplaces), moving trains and buses, etc., and depending on the places where they are used, environmental factors in the surrounding area and the degree of user's request to continue the display screen Different. For this reason, depending on the place of use, the transition to the power saving state may be performed early, and conversely, the transition to the power saving state may not be performed as much as possible. In addition, depending on the display content displayed on the display screen, when the transition to the power saving state may be performed earlier, it may be better not to perform the transition to the power saving state as much as possible. .

  Further, Patent Document 2 only describes switching between wide and narrow viewing angles for preventing peeping of images displayed on the display screen, and the place where the electronic device is used and the display screen of the electronic device. The automatic switching according to the display content (display content) displayed on the screen is not disclosed.

  However, as in the case of the transition time to the power saving state, either the wide or narrow viewing angle for preventing peeping of the image displayed on the display screen is appropriate depending on the usage location and display contents of the electronic device. However, it is troublesome and complicated for the user to change the viewing angle each time.

  Further, Patent Document 3 discloses a technique that makes it impossible for others to read an image displayed on the display screen in order to prevent peeping. It is not considered at all to switch the degree to prevent others from reading the image according to the display content (display content) displayed on the display screen of the device.

  However, in order to prevent the user from peeping, if the other person cannot read the image displayed on the display screen, the user himself / herself will not be able to read the image. Depending on the display content, it may be seen by those who are peeping. If priority should be given to reading by the user himself / herself, it will be difficult to read by the peeper and be readable by the user. In some cases, image control may be performed.

  An object of this invention is to provide the electronic device which can solve the above problem.

In order to solve the above problems, the invention of claim 1
A display unit comprising a display screen;
Current position detecting means for detecting the current position;
A usage location type certifying means for certifying which of the plurality of types of usage location types set in advance is the current location detected by the current location detection means;
Corresponding to the use location type, a predetermined time for shifting from a state in which an image is displayed on the display screen to a state in which power is not displayed on the display screen is displayed on the display screen. A table information storage unit for storing table information for storing a predetermined time during which an image is continuously displayed without changing the image content;
Obtaining means for obtaining from the table information storage unit the predetermined time corresponding to the use place type authorized by the use place type authorization means;
Control means for controlling a transition from a state in which an image is displayed on the display screen to a state in which power is saved without displaying an image on the display screen, based on the acquired predetermined time;
Viewing angle control means for controlling the viewing angle of the display screen;
Equipped with a,
In the table information storage unit, in addition to the predetermined time corresponding to the use place type authorized by the use place type authorization means, information of a viewing angle corresponding to the use place type is stored,
The acquisition means acquires information on the viewing angle in addition to the predetermined time,
The viewing angle control means controls the viewing angle of the display screen based on the viewing angle information corresponding to the use place type acquired by the acquisition means .

  According to the invention of claim 1 having the above-described configuration, the table information storage unit stores power in advance so as not to display an image on the display screen from a state in which the image is displayed on the display screen corresponding to the use place type. Table information is stored that stores a predetermined time during which the image displayed on the display screen is continuously displayed without changing the image content. .

  The use location type recognition unit authorizes which of the plurality of types of use location types set in advance is the current position detected by the current position detection unit. The acquisition unit acquires the predetermined time corresponding to the usage location type certified by the usage location type certification unit from the table information storage unit. Then, the control unit controls transition from a state in which an image is displayed on the display screen to a state in which power is saved without displaying an image on the display screen, based on the acquired predetermined time.

  Therefore, according to the first aspect of the present invention, the transition from the state in which the image is displayed on the display screen to the state in which the image is not displayed on the display screen is performed from the state in which the image is displayed in an appropriate predetermined time according to the use place type. Can be obtained.

In the first aspect of the invention , the table information storage unit stores information on the viewing angle corresponding to the use place type, and the acquisition unit corresponds to the use place type with a predetermined time and a viewing angle. Get information about. And according to invention of Claim 1, it transfers to the state which aims at the power saving which does not display an image on a display screen from the state which displays the image on a display screen in the appropriate predetermined time according to a use place classification. In addition, it is possible to obtain an electronic device that controls the viewing angle with respect to the display image to be an appropriate viewing angle according to the type of use place.

The invention of claim 2
A display unit comprising a display screen;
Current position detecting means for detecting the current position;
A usage location type certifying means for certifying which of the plurality of types of usage location types set in advance is the current location detected by the current location detection means;
Corresponding to the use location type, a predetermined time for shifting from a state in which an image is displayed on the display screen to a state in which power is not displayed on the display screen is displayed on the display screen. A table information storage unit for storing table information for storing a predetermined time during which an image is continuously displayed without changing the image content;
Obtaining means for obtaining from the table information storage unit the predetermined time corresponding to the use place type authorized by the use place type authorization means;
Control means for controlling a transition from a state in which an image is displayed on the display screen to a state in which power is saved without displaying an image on the display screen, based on the acquired predetermined time;
An image processing unit that performs image processing to transform the image in order to prevent peeping of the image displayed on the display screen, and image processing means capable of performing multiple types of image processing as the image transformation mode ;
With
The table information storage unit stores the transformation mode of the image corresponding to the use place type,
Wherein, in the visual line detecting means, when detecting a line of sight of a person other than the user having the authority for use, from the table information storage section, to the place of use type certified by the use location Type Certification means The image processing unit is controlled so as to acquire a change mode of the corresponding image and to change the image displayed on the display screen in the change mode of the acquired image.

In the invention of claim 2 , the table information storage unit stores the image transformation mode corresponding to the use place type, and the line-of-sight detection means detects the line of sight of a person other than the user having the use authority. When detected, an image transformation mode corresponding to the use place type is acquired, and the image displayed on the display screen is transformed according to the acquired image transformation mode. That is, according to the second aspect of the present invention , when a third person's peep is detected, the display image can be controlled to be displayed in the image transformation mode corresponding to the use place type.

  According to the electronic device of the present invention, it is possible to change to a power saving state in an appropriate predetermined time according to the place of use. Further, it is possible to change to a power saving state in an appropriate predetermined time according to the display content type as well as the usage location type.

  Further, according to the electronic apparatus of the present invention, the viewing angle with respect to the display image can be controlled to be an appropriate viewing angle according to the use place type. Furthermore, when a third person's peep is detected, the display image can be controlled to be displayed in the image transformation mode corresponding to the use place type.

It is a figure for demonstrating the external appearance of an example of embodiment of the electronic device by this invention. It is a block diagram which shows the hardware structural example of the electronic device main body which comprises the principal part of embodiment of the electronic device by this invention. It is a figure for demonstrating the table information which is the principal part of embodiment of the electronic device by this invention. It is a figure which shows an example of the table information which is the principal part of embodiment of the electronic device by this invention. It is a figure which shows the flowchart for demonstrating the operation example for demonstrating the principal part of embodiment of the electronic device by this invention. It is a figure which shows the flowchart for demonstrating the operation example for demonstrating the principal part of embodiment of the electronic device by this invention. It is a figure which shows the flowchart for demonstrating the operation example for demonstrating the principal part of embodiment of the electronic device by this invention. It is a figure which shows a part of flowchart for demonstrating the operation example for demonstrating the principal part of embodiment of the electronic device by this invention. It is a figure which shows a part of flowchart for demonstrating the operation example for demonstrating the principal part of embodiment of the electronic device by this invention.

  Hereinafter, embodiments of an electronic apparatus according to the present invention will be described with reference to the drawings. The embodiment of the electronic device described below can be used in the same manner as a notebook computer (personal computer or personal computer) on a desk at home or at a company (workplace), and is carried by a user. This is a case where a so-called tablet PC can be configured to accept an input operation through a touch panel provided so as to be superimposed on the display screen.

  FIG. 1 is a diagram for explaining an outline of the electronic apparatus 1 of this embodiment. The electronic device 1 of this embodiment includes a thin electronic device main body 2, a pad-type keyboard unit 3 that can also serve as a front cover, and a back cover 4.

  The electronic device main body 2 includes a display screen 5a having a size covering substantially the entire surface. In this example, an LCD (Liquid Crystal Display) is used as the display device 5 including the display screen 5a. The back cover 4 is made of a relatively hard material provided so as to cover the entire surface of the electronic device main body 2 on the side opposite to the display screen 5a. As shown in FIG. 1A, the back cover 4 is configured such that a part of the back cover 4 can be bent away from the electronic device main body 2. Can be stood in.

  The keyboard unit 3 is configured to be detachable from the electronic device main body 2. Although not shown, each of the joint portions of the keyboard portion 3 and the electronic device main body 2 is provided with a connector for performing electrical connection with each other. It is configured to be done automatically.

  In this example, a camera 107 is attached to the frame portion of the display screen 5a of the electronic device main body 2, and is used for photographing a user's face image, a peeper's face image, and the like.

  In this example, a touch panel 6 and a viewing angle control panel 7 are superimposed on the front surface of the display screen 5 a of the electronic device main body 2. Since the electronic device main body 2 has the touch panel 6, as shown in FIG. 1B, the touch panel 6 can be used as an operation input unit even in a state where the connection with the keyboard unit 3 is released. It can be used as a tablet PC. Therefore, the electronic device main body 2 alone constitutes the electronic device of the embodiment of the present invention.

  In this example, as the viewing angle control panel 7, the viewing angle switching panel described in Patent Document 2 described above is used, and the viewing angle of the display screen 5a is 2 of "wide viewing angle" and "narrow viewing angle". It is possible to switch to the street. Here, the viewing angle is the size of the central angle when the range in which the image on the display screen 5a can be normally viewed from the direction perpendicular to the display screen 5a is represented in a sector shape. The degree means that the display image of the display screen 5a can be normally viewed only from the front, and the viewing angle of 180 degrees is displayed even when viewed from the side (or directly above or directly below) along the display screen 5a. This means that the display image on the screen 5a can be normally viewed.

  When the viewing angle control function by the viewing angle control panel 7 is not operated, the display image can be normally viewed at the maximum viewing angle θmax included in the display screen 5a. In this embodiment, the viewing angle control panel 7 is automatically driven when it is necessary to prevent peeping, and the two viewing angles of the display screen 5a are narrower than the maximum viewing angle θmax. Viewing angle θ1 or θ2. Here, the viewing angle θ1> the viewing angle θ2, and in this example, the wide viewing angle θ1 is, for example, 70 degrees, and the narrow viewing angle θ2 is, for example, 30 degrees.

  FIG. 2 is a block diagram illustrating a hardware configuration example of the electronic device main body 2. As shown in FIG. 2, the electronic device main body 2 has a memory 102, an LCD controller 103, a touch panel interface 104, a viewing angle controller 105, a keyboard interface 106, and a camera 107 via a system bus 100 with respect to a control unit 101 including a processor. The image recognition processing unit 108, the authentication face image storage unit 109, the current position detection unit 110, the timer unit 111, the wireless LAN communication unit 112, and the peeping prevention control processing unit 113 are connected to each other.

  Although not shown in FIG. 2, the memory 102 stores programs for the control unit 101 to execute various processing functions of the electronic device main body 2 of this example. As shown in FIG. 2, the memory 102 includes a display display control table storage unit 1021, a use location type buffer 1022, and a display content type buffer 1023 as a part of the storage area. Information stored in the storage unit 1021 and the buffers 1022 and 1023 will be described later.

  The LCD 5 is connected to the LCD controller 103, the touch panel 6 is connected to the touch panel interface 104, and the viewing angle control panel 7 is connected to the viewing angle controller 105. The LCD controller 103 displays an image on the display screen 5 a based on the control of the control unit 101.

  The control unit 101 also controls the LCD controller 103 and others to control the electronic device main body 2 so as not to display the image displayed on the display screen 5a of the LCD 5 and to shift to a state in which power is saved. Do. In this embodiment, the electronic device main body 2 is set to a sleep state in a state in which an image displayed on the display screen 5a of the LCD 5 is not displayed to save power (power saving state). The state in which the image displayed on the display screen 5a of the LCD 5 is not displayed and power saving is performed is not limited to the sleep state, but the computer operation is temporarily stopped and the computer enters a sleep state in which the computer is on standby. You may do it.

  The sleep state is a power saving state in which the computer can be quickly returned to the normal power state in about several seconds when the work is resumed. On the other hand, the hibernation state is a state of power saving designed for notebook PCs, while the sleep state is a state where the contents and settings that were worked on are stored in memory and a small amount of power is used. The hibernation state is a state in which open documents and programs are stored in the hard disk and the computer is turned off. The hibernation state is a state in which the operation of the computer is temporarily stopped to stand by in a power saving state, and unlike the case where the power is turned off, the computer can be quickly restarted from the state before the stop.

  In addition, as a state in which the image displayed on the display screen 5a of the LCD 5 is not displayed and power saving is performed (power saving state), a state in which no power is supplied to the LCD 5 can be used.

  The touch panel interface 104 detects a user operation input to the touch panel 6 and transmits information on the detected operation input to the control unit 101. The control unit 101 performs control processing corresponding to the received operation input information.

  The viewing angle controller 105 switches and controls the viewing angle control panel 7 based on the control by the control unit 101, the state in which the viewing angle is not controlled (the state of the maximum viewing angle θmax), and the viewing angle is the wide viewing angle θ1 (described above). The state is switched to θmax> θ1> θ2), or the state is switched to the narrow viewing angle θ2 (θmax> θ1> θ2) described above.

  When the electronic device main body 2 is connected to the keyboard unit 3 through the connector unit 106T, the keyboard interface 106 detects a user's operation input to the keyboard unit 3 and uses the detected operation input information to the control unit 101. To communicate. The control unit 101 performs control processing corresponding to the received operation input information.

  In this example, as shown in FIG. 1, the camera 107 is attached to the frame portion of the display screen 5 a of the electronic device main body 2 and is used to capture a user's face image or a peeper's face image. It is done. In order to monitor the user and the peeper, the camera 107 shoots the face image of the user and the peeper at an appropriate time interval under the control of the control unit 101 and uses the captured image information as a system. The data is transferred to the image recognition processing unit 108 through the bus 100.

  An authentication face image storage unit 109 is connected to the image recognition processing unit 108. In the authentication face image storage unit 109, image information of a face image of a user who has authority to use the electronic device 1 is registered and stored in advance. The face image of the user having the use authority stored in the authentication face image storage unit 109 may be a face image of the user photographed by the camera 107, or a user face image photographed by other photographing means. For example, the information acquired through the wireless LAN communication unit 112 may be stored. In this embodiment, the peeper is a third person whose face image is not stored in the authentication face image storage unit 109.

  The image recognition processing unit 108 includes face image information newly taken by the camera 107 and transferred via the system bus 100, and a user who has a use right stored in the authentication face image storage unit 109. By performing pattern matching with the face image information, it is determined whether or not the user viewing the display screen 5a of the electronic device body 2 is a user having use authority, and face authentication processing is performed. Do.

  In this embodiment, the image recognition processing unit 108 detects the gaze (gaze direction) of the viewer of the face image from the face image information photographed by the camera 107, and the viewer views the display screen 5a. A line-of-sight detection process for determining whether or not the displayed image is viewed within the range of the viewing angle set on the display screen 5 a by the viewing angle controller 105 is also performed. In this case, the image recognition processing unit 108 not only detects the line of sight of the user having the use authority, but also detects the line of sight of the peeper who does not have the use authority.

  In this example, the current position detection unit 110 has a function of receiving a radio wave from a GPS (Global Positioning System) satellite and detecting the current position of the electronic device main body 2. Further, the current position detection unit 110, as information for auxiliary current position detection, image information inside the room captured by the camera 107 stored in advance and information captured by the camera in the room at the current position. And the result of pattern matching processing performed by the image recognition processing unit 108 can be used. Thereby, the current position detection unit 110 can determine whether the electronic device main body 2 is used in the study or in the living room, for example, even at the user's home, In the company (workplace), it is possible to determine whether the electronic device main body 2 is being used in a user's own workplace seat or in a conference room.

  The timer unit 111 includes a clock circuit. In this embodiment, the timer unit 111 monitors whether or not the time for shifting to the sleep state (the set time for shifting to the sleep state) has elapsed for power saving. When the timer unit 111 detects that the time for shifting to the sleep state has elapsed, the timer unit 111 notifies the control unit 101 accordingly.

  In this example, the wireless LAN communication unit 112 has a Wi-Fi (registered trademark) communication function, a function of accessing a Web site through the Internet, and a function of accessing an in-house server through an intranet such as an in-house LAN. Have

  The peeping prevention control processing unit 113 is driven by the control unit 101 when a line of sight to the display screen 5a of a peeper who does not have the use authority is detected, and the image displayed on the display screen 5a is displayed correctly. Display control or image control is performed so as not to occur.

  Here, the display control in the peeping prevention control processing unit 113 is a control that deteriorates the visibility of the image displayed on the display screen 5a, and in this embodiment, the screen is darkened. When the screen is darkened, it may be in a sleep state in which the display screen 5a is erased to make it dark.

Note that the display control for reducing the visibility of the image displayed on the display screen 5a is not limited to the method of darkening the screen.
-Decrease the contrast and blur the image-Reduce the resolution of the displayed image-Shift the color balance and hue control (hue adjustment) to shift the color of the color display image-Scroll the screen, vibrate the screen, Processing such as flashing, shifting horizontal synchronization and vertical synchronization, and distorting the image may be performed.

  Further, the image control in the peeping prevention control processing unit 113 is control for changing the image from the original display image. In this example, image processing for preventing the image from being correctly viewed with respect to the original image. For example, mosaic processing is performed. Here, the mosaic process includes an encryption process.

Note that the control for changing the image from the original display image is not limited to image processing that prevents the image from being correctly viewed with respect to the original image, such as mosaic processing.
-Change the display image to a completely different image that may be seen by a peeper (others)-Change only a part of the image displayed on the display screen Good.

  In FIG. 2, the functions of the LCD controller 103, the viewing angle controller 105, the image recognition processing unit 108, and the peeping prevention control processing unit 113 are executed by the control unit 101 using programs stored in the memory 102. It can also be configured to be realized as a software function.

[Example of Table Information in Display Display Control Table Storage Unit 1021]
FIG. 3 shows a legend of information stored as table information in the display display control table storage unit 1021 in this embodiment. As shown in FIG. 3, in this embodiment, the table information includes “use location type” of the electronic device main body 2 and “display content type” displayed on the display screen 5a. Four types of setting information, “time to transition to sleep state”, “condition for transition to sleep state”, “viewing angle”, and “how to control peep prevention” are set and registered in advance.

  The usage location type is a location where the current location where the electronic device main body 2 is used can be used without being conscious of other people's eyes, such as at home, or a place in a predetermined limited environment such as a company The type of place of use determined from the viewpoint of security and personal information protection and the relationship with the surrounding environment, such as in a train or other park or a place that is always peeped by strangers It is. That is, the used place type is also a type of place that is different in the degree that the display image on the display screen may be shown to others. In this example, this use place type is associated with position information of a position where the electronic device main body 2 is planned to be used, and for example, “home”, “company”, “in a train”, etc. Set by each of

  In addition, for the usage location type whose location varies depending on the user, such as “home” or “company”, the location information corresponds to the name of the usage location type depending on the user. (Omitted). Therefore, if the current position of the electronic device body 2 is known, it can be determined whether or not the electronic device main body 2 is in the position of the use place type. In addition, the usage location type unrelated to the user's attribute such as in a train is, for example, whether the current usage location type is present by inquiring the location using current location information (latitude, longitude, etc.) via the Internet. Can be certified.

  The display content type is content accompanying operation input (referred to as input-accompanying content) such as document creation (including editing), table creation, graph creation, figure / drawing creation, or content acquired through the Internet and confidential Whether it is high content, content acquired through the Internet, content with low confidentiality, or content acquired through an intranet that is restricted by an ID or password, etc. It is a type of content displayed on a display screen determined from the relationship between the viewpoint of personal information protection and the surrounding environment. In other words, the display content type is also a type of display content that is different to the extent that the display image on the display screen may be shown to others.

  In addition, content acquired through the intranet can be freely accessed and viewed within the intranet, for example, within a company (workplace), but when viewing remotely via outside the company (workplace) , The content is classified information (secret). Therefore, even if the content is low or not confidential in the company, the content is highly confidential when viewed outside the company.

  In the electronic device main body 2 of this embodiment, the user designates content that is highly confidential so that it can be determined whether the content is acquired through the Internet and is highly confidential. Then, a URL (Uniform Resource Locator) of a site that provides the content through the Internet is registered in advance and registered in a predetermined memory area (not shown) of the memory 102. When the control unit 101 of the electronic device main body 2 accesses a website with a URL registered as having high secrecy through the Internet, the display content type is content acquired through the Internet and content with high secrecy. Try to recognize that there is.

  The control unit 101 can recognize other display content types by determining an application program that provides the display content or by determining what the source of the display content is. Of course, even if the content is acquired through the intranet, it is possible to determine whether the content is highly confidential as in the case of the Internet. In addition, even in the case of input-accompanying content, it is recorded when "Handling Precautions", "Top Secret", "Confidential", etc. are clearly specified in documents, tables, graphs, figures, drawings, etc. If it is, it can be determined whether the content is highly confidential. In addition, the confidentiality is not limited to high and low, but may be classified into a plurality of types such as “very high”, “high”, “medium”, “low”, “very low”, and “not at all”. Depending on the type of confidentiality, the transition time to the sleep state, the transition conditions, the viewing angle, and the peeping prevention control method can be set differently.

  In addition to the above-mentioned examples, the display content type may be e-mail, SNS, LINE, Twitter, blog browsing, creation thereof, photo browsing, TV program or video viewing, game operation, etc. Good.

  Next, among the setting information, “the transition time to the sleep state” means that the display time is continuously changed without changing the content of the display image, and the sleep time is exceeded when the set transition time is exceeded. It is the time set as transition to the state. For example, in the case of input-accompanying content, when an input operation is performed, the newly input information is reflected and changed in the display image. Therefore, the display image is changed during the transition time to the sleep state. It is reset at the time and re-measurement is started from that time. That is, in the case of input-accompanying content, the transition to the sleep state is executed when the set transition time has elapsed without performing the input operation.

  Also, in the case of Web page content that is not input-accompanying content, the display image is changed when the user inputs some operation and the Web page is changed. Accordingly, in the case of Web page content, the sleep state is entered when the set transition time elapses without any operation input by the user being performed and continuing with the same image content. Migration is performed.

  In the case of a moving image such as a TV program or a video, the display image is always changed, and thus the transition to the sleep state is not executed. Since these are contents intended for long-time viewing, they are excluded from the contents to be subjected to power saving processing. However, in this embodiment, the peeping prevention control processing unit 113 is used so that peeping prevention control can be performed from the viewpoint of security and protection of personal information. However, for example, peeping prevention can be realized by changing the image. Even if the display image is a moving image, if it can be determined by detecting the user's line of sight that the user is not watching the moving image, the user is not watching the moving image. When the state continues beyond the set predetermined time, a transition to the sleep state may be made.

  In addition, in this embodiment, the setting of the “condition for transition to the sleep state” is based on whether or not the line of sight of the user who has usage authority is facing the display screen 5a within the set viewing angle. It is a setting of whether or not. When it is a condition that the line of sight of the user having the use authority is facing the display screen 5a, the user's face authentication is performed to determine whether or not the user has the use authority and the user's A line of sight is detected, and it is determined whether the direction is facing the display screen 5a. If the line of sight of the user having the use authority is facing the display screen 5a, even if the elapse of the set transition time to the sleep state is satisfied, the transition to the sleep state is not performed, and the use authority When the user's line of sight is not facing the display screen 5a and the elapse of the set transition time to the sleep state is satisfied, the transition to the sleep state is executed.

  The “viewing angle” means setting a viewing angle for preventing peeping. As described above, the “viewing angle” is set in three ways: no viewing angle switching control (viewing angle θmax), wide viewing angle θ1 (<θmax), and narrow viewing angle θ2 (<θ1).

  Further, the setting of “how to control peeping prevention” is the setting of display control or image control for peeping prevention as described above.

  FIG. 4 shows a specific example of table information. In the example of FIG. 4, examples of types of use places include a study at home, a living room at home, a seat at his / her own workplace, a conference room at a company, and a train. Of course, examples of usage location types are not limited to this, but other places in the home, other places in the company, in various vehicles, or in museums, libraries, halls, hotels, restaurants, department stores, shops, parks, private homes There are various possibilities such as in the car, on the road (walking or stationary). Further, for example, in a hotel, the electronic device main body 2 (electronic device 1) determines whether it is a private room where a user who has usage authority stays or a public place such as a lobby or a banquet hall. 110 can be used to identify the type of place used, such as “Hotel Guest Room” or “Hotel Guest Room”, and based on this, the transition time to sleep state, transition conditions, viewing angle and peek The prevention control method can be set appropriately.

  In addition, the usage location type is set as “a place where there is a high risk of being peeped into by another person (third party)”, “a place where there is a low risk of peeping into another person”, or “a place where there is no risk of peeping into another person” You can also. In this case, it is beneficial to separately prepare table information and the like for associating each location with specific information and providing the electronic device main body 2 with the table information. Alternatively, the camera 107 of the electronic device main body 2 captures an image of the surroundings of the current position, recognizes the situation of the imaged surroundings, determines the risk level of the location, and determines the determination result of the risk level as the control unit 101. You may comprise so that it may provide.

  In the example of FIG. 4, as examples of display content types, input-accompanying content, Internet content that has been previously concealed, Internet content that has not been concealed, company, etc. Content obtained from the Intranet.

As shown in FIG. 4, specific times such as 5 minutes and 3 minutes are set as the transition time to the sleep state. In addition, as a condition for transitioning to the sleep state, the state set to require gaze detection of the user having the use authority is set to “gaze detection” in FIG. 4 and does not require gaze detection of the user having the use authority. Is set to “non-detection of line of sight” in FIG.

  Regarding the setting of the viewing angle, “no control” means setting of “viewing angle θmax”, “wide” means setting of “viewing angle θ1”, and “narrow” means “viewing angle”. It means the setting of “θ2”.

  As for peeping prevention control, “no control” means a setting that does not perform display control and image control of peeping prevention control, and “dark screen” means peek prevention control display control. This means that the screen is darkened so that the viewer can hardly see the display image. “Image transformation” means that the display image is transformed into another image by image control of peeping prevention control. Means settings to control.

  In FIG. 4, the specific time is set as 5 minutes, 3 minutes, or the like as the transition time to the sleep state, but the set time is an example and can be freely set. Also, instead of an absolute time setting method such as 5 minutes, 3 minutes, etc., the default value (eg 3 minutes) of the transition time to the sleep state is “1/3 times, 1/2 times, 1 time, A relative time setting method such as “2 times, 3 times” or “−2 minutes, −1 minute, unchanged, +1 minute, +2 minutes, +5 minutes” can also be used.

[Display Control Operation of Display Screen of Electronic Device Body 2 (Electronic Device 1) of Embodiment]
In this embodiment, the control unit 101 of the main body 2 of the electronic device 2 uses the type of usage location authorization operation, the display content type authorization operation, the display information control table storage unit 1021 table information acquisition operation, and the display screen 5a display control. The operation (display control routine) is executed in parallel.

  That is, for example, the control unit 101 performs the use location type recognition operation triggered by a change in position information detected by the current position detection unit 110. Then, the authorized usage location type is overwritten and stored in the usage location type buffer 1022 of the memory 102, and notification is made that the storage content of the usage location type buffer 1022 has been changed.

  In addition, the control unit 101 executes a display content type qualifying operation triggered by, for example, a timing when an application program to be executed is changed, a source of an image displayed on the display screen 5a is changed, or the like. Then, the authorized display content type is overwritten and stored in the display content type buffer 1023 of the memory 102, and at the same time, the storage content of the display content type buffer 1023 is notified.

  Then, the control unit 101 stores the display display control table based on the notification that the storage content of the use location type buffer 1022 is changed and / or the notification that the storage content of the display content type buffer 1023 is changed. The table information acquisition operation of the unit 1021 is executed. Then, the control unit 101 transmits, from the display display control table storage unit 1021, “the transition time to the sleep state” and “sleep” corresponding to the use location type of the use location type buffer 1022 and the display content type of the display content type buffer 1023. The four types of setting information of “state transition condition”, “viewing angle”, and “peeping prevention control method” are acquired and passed to the display control processing routine as data.

  Then, the control unit 101 performs display control using the acquired four types of setting information in the display control routine of the display screen 5a. Below, each processing operation is further explained.

[Certification action for location type]
FIG. 5 is a flowchart showing a flow of an example of the usage location type authorization operation. Hereinafter, with reference to FIG. 5, the use location type authorization operation will be described.

  First, the control unit 101 acquires current position information detected by the current position detection unit 110 (step S1). Next, the control unit 101 recognizes the corresponding usage location type from the detected current position information (step S2). As described above, the used place type in step S2 is first approved as correspondence information between the used place type and the current position stored in the memory 102. In this embodiment, when the authorization from the correspondence information between the use location type and the current location is not possible, in this embodiment, the location search site on the Internet is accessed through the wireless LAN communication unit 112, and the current location information is sent to respond. The location type is certified by acquiring location information.

  Next, the control unit 101 overwrites and stores the used place type recognized in step S2 in the used place type buffer 1022, and notifies that the used place type has been rewritten (step S3). Next, the control unit 101 determines whether or not the electronic device main body 2 has moved by detecting a change in position information detected by the current position detection unit 110 (step S4).

  When it is determined in step S4 that the electronic device main body 2 has moved, the control unit 101 acquires current position information detected by the current position detection unit 110 (step S5), and then, from the detected current position information, a step is performed. Similar to the process in S2, the corresponding use place type is certified (step S6).

  Next, the control unit 101 determines whether or not the used place type recognized in step S6 has changed from the used place type stored in the used place type buffer 1022 (step S7). When it is determined in step S7 that the use place type has not changed, the control unit 101 returns the process to step S4 and performs the processes after step S4. If it is determined in step S7 that the use place type has changed, the control unit 101 returns the process to step S3, and repeats the processes after step S3.

  When it is determined in step S4 that the electronic device main body 2 has not moved, the control unit 101 determines whether or not the power is turned off (step S8), and determines that the power is not turned off. If so, the process returns to step S4, the processes after step S4 are repeated, and when it is determined that the power is turned off, the process routine is terminated.

[Authorization of display content type]
FIG. 6 is a flowchart showing a flow of an example of the display content type authorization operation. Hereinafter, the display content type authorization operation will be described with reference to FIG.

  First, the control unit 101 discriminates the display content displayed on the display screen 5a by determining the application program being activated and the source of the display image (step S11), and certifies the display content type (step S11). S12).

  Next, the control unit 101 overwrites and stores the display content type authorized in step S12 in the display content type buffer 1023, and notifies that the display content type has been rewritten (step S13). Next, the control unit 101 determines whether the display content of the display screen 5a has been changed by detecting whether the application program and the source of the display image have been changed (step S14).

When it is determined in step S14 that the display content on the display screen 5a has been changed, the control unit 101 determines the display content displayed on the display screen 5a (step S15) and recognizes the display content type (step S16). )
Next, the control unit 101 determines whether or not the display content type recognized in step S16 has been changed from the display content type stored in the display content type buffer 1023 (step S17). When it is determined in step S17 that the display content type has not been changed, the control unit 101 returns the process to step S14, and performs the processes after step S14. If it is determined in step S17 that the display content type has been changed, the control unit 101 returns the process to step S13 and repeats the processes in and after step S13.

  When it is determined in step S14 that the display content on the display screen 5a has not been changed, the control unit 101 determines whether or not the power is turned off (step S18), and the power is not turned off. If it is determined, the process returns to step S14, the processes after step S14 are repeated, and if it is determined that the power is turned off, the process routine is terminated.

[Table Information Acquisition Operation of Display Display Control Table Storage Unit 1021]
FIG. 7 is a flowchart showing an exemplary flow of the table information acquisition operation of the display display control table storage unit 1021. Hereinafter, with reference to FIG. 7, the table information acquisition operation of the display display control table storage unit 1021 will be described.

  First, the control unit 101 recognizes the used place type stored and held in the used place type buffer 1022 (step S21). Next, the control unit 101 recognizes the display content type stored and held in the display content type buffer 1023 (step S22).

  Next, the control unit 101 refers to the table information in the display display control table storage unit 1021 of the memory 102 according to the recognized use location type and display content type (step S23), and the transition time to the corresponding sleep state and The transition condition setting information and the corresponding viewing angle and setting information for peeping prevention control are acquired, and the acquisition of the setting information is notified (step S24).

  Next, the control unit 101 monitors the change notification of the stored content in the use location type buffer 1022 or the display content type buffer 1023, and determines whether or not the stored content has been changed (step S25). If it is determined in step S25 that the content stored in the use location type buffer 1022 or the display content type buffer 1023 has been changed, the control unit 101 returns the process to step S21 and repeats the processes in and after step S21. Therefore, each time the content held in the use location type buffer 1022 or the display content type buffer 1023 is changed, the control unit 101, in step S24, sets the transition time to the sleep state corresponding thereto and setting information of the transition condition, Also, since the corresponding viewing angle and setting information for peeping prevention control are acquired, the setting information acquisition notification issued in step S24 is also a change notification of the acquired setting information.

  If it is determined in step S25 that the content held in the use location type buffer 1022 or the display content type buffer 1023 is not changed, the control unit 101 determines whether the power is turned off (step S26). When it is determined that the power is not turned off, the process is returned to step S25, the processes after step S25 are repeated, and when it is determined that the power is turned off, the processing routine is ended.

[Display screen display control operation]
FIG. 8 and FIG. 9, which is a continuation thereof, are flowcharts showing a flow of an example of the display control operation of the display screen 5a. Hereinafter, the display control operation of the display screen 5a will be described with reference to FIGS.

  First, the control unit 101 displays a screen for prompting user face authentication (step S101). Next, the control unit 101 captures a user's face image with the camera 107 and uses the user's face image stored in the authentication face image storage unit 109 by the function of the image recognition processing unit 108. Face authentication is performed to authenticate whether or not the user to be authenticated is a user who has the authority to use (step S102). Next, the control unit 101 determines whether the authentication is OK (step S103).

  When it is determined in step S103 that the user to be authenticated is not a user who has the authority to use (authentication NG), the control unit 101 returns the process to step S101 and repeats the process from step S101. If it is determined in step S103 that the user to be authenticated is a user who has the authority to use (authentication OK), the control unit 101 permits the use of the electronic device body 2 and performs the user's instruction operation. The corresponding image is displayed on the display screen 5a (step S104).

  Next, the control unit 101 performs the transition time to the sleep state acquired by the table information acquisition operation of the display display control table storage unit 1021 described with reference to FIG. 7 and its conditions, and the viewing angle and peeping prevention control. Recognizing the setting information, execution of each control of the transition to the sleep state, the viewing angle switching control, and the peeping prevention control is started (step S105).

  Here, in step S105, the control unit 101 controls the viewing angle controller 105 so that the viewing angle selected according to the use location type and the display content type is set based on the setting information acquired in step S105. To. That is, as shown in FIG. 4, for example, when the display content type is input-accompanying content, if the use place type is home study, the viewing angle is set to the widest θmax and If the location type is a company seat, the viewing angle is switched to a relatively wide θ1 that is narrower than θmax, and if the usage location type is in a train, the viewing angle is θ2 that is narrower than θ1. It is switched to become. As a result, the viewing angle of the display screen 5a is set to an appropriate viewing angle according to the presence or absence of a peeper according to the use place type. In addition, the viewing angle of the display screen 5a is set to an appropriate viewing angle according to the degree of security of the display content according to the display content type.

  Next, the control unit 101 executes the transition control to the sleep state and the peep prevention control based on the monitoring operation in step S106 below. That is, the control unit 101 continues to monitor whether or not the operation input continues and the transition time to the sleep state is not exceeded, and the line of sight of the user (authenticated user) who has been authenticated for use authority The setting information acquired in step S105 in the operation of monitoring whether there is no time for transition to the sleep state or the operation of monitoring the line of sight within the set viewing angle of the display screen 5a of a person other than the authentication user. Accordingly, necessary operations are executed in parallel (step S106). In step S106, the control unit 101 also determines whether or not the display image on the display screen 5a is an image that changes every moment like a moving image.

  Next, the control unit 101 determines whether or not the transition time to the sleep state has elapsed by satisfying the transition condition (step S107). When it is determined that the transition time has been satisfied and the transition time to the sleep state has elapsed, the control unit 101 performs control so as to transition to the sleep state (step S108).

  As shown in FIG. 4, the transition time to the sleep state and the transition conditions are set differently depending on the use location type and the display content type. No. 2 usage location and the display content displayed on the display screen 5a are appropriate. For example, in the case of input-accompanying content, it seems that the user often performs input work while thinking. Therefore, in an environment where there are few peepers, the user's line of sight is displayed on the display screen 5a during the transition time to sleep Longer is better as long as you are facing. However, in a train where there are many peepers, the transition time to the sleep state should be relatively short regardless of whether the user's line of sight is facing the display screen 5a. In the present invention, the transition time to the sleep state and the transition condition can be set according to the display content type and the usage place type, which is very convenient.

  Next, the control unit 101 determines whether or not the sleep state cancellation condition has been satisfied (step S109). If the control unit 101 determines that the sleep state cancellation condition is not satisfied, the control unit 101 sets the sleep state. When it is determined that the sleep state cancellation condition is satisfied, the process returns to step S101, and the processes after step S101 are repeated. In this example, the condition for canceling the sleep state is that the control unit 101 detects that an operation input has been made by the user.

  If it is determined in step S107 that the transition time to the sleep state in the state where the transition condition is satisfied has not elapsed, the control unit 101 displays the display screen 5a within the set viewing angle of the display screen 5a. It is determined whether or not the line of sight of a person other than the authenticated user who faces the direction is detected (step S111 in FIG. 9). When it is determined in step S111 that the line of sight of a person other than the authenticated user who faces the display screen 5a within the set viewing angle of the display screen 5a is detected, the control unit 101 recognizes in step S105. The peeping prevention control selected by the setting information of the peeping prevention control performed is executed (step S112).

  That is, in this embodiment, the viewing angle is set to an appropriate viewing angle according to the use place type and the display content type so that the peeping by the peeper can be prevented as much as possible. Display control or image control when a gaze of a peeper within the set viewing angle is detected, that is, when it is detected that the peeper is actually viewing the display image on the display screen 5a. By performing the peep prevention control according to, it is difficult to view the display image, or the display image is not shown as another.

  That is, in the example of FIG. 4, when the display content type is input-accompanying content, when there is no worry of peeping in the study at home, the peeping prevention control is set not to be performed, so In the room, display control is set to darken the image so that it is hard to see even if it is peeped, and the display image is changed so that peeping by the peeper can be completely prevented in the train etc. Appropriate peeping prevention control according to the usage location type is executed even for the same display content type.

  In the example shown in FIG. 4, the former is “screen dark” and the latter in the example of FIG. 4, even in the case of the same usage place type, such as a living room at home or a company seat. Is set as “image transformation”, and appropriate peeping prevention control according to the display content type is executed. In this case, it goes without saying that the Internet content includes moving image content such as a moving image site and Internet TV.

  Therefore, according to this embodiment, there is an effect that the peeping by the peeper can be appropriately prevented according to the use place type and the display content type. Of course, there is an effect that peeping by a peeper can be prevented even if only the usage location type or the display content type is used.

  After step S112, the control unit 101 determines whether or not the line of sight within the viewing angle of a person other than the authenticated user is not detected (step S113). When it is determined in step S113 that the line of sight within the viewing angle of a person other than the authenticated user is not detected, the control unit 101 returns the process to step S112 to perform peeping prevention control. continue.

  If it is determined in step S113 that the line of sight within the viewing angle of a person other than the authenticated user has not been detected, the control unit 101 ends the peep prevention control and is selected based on the setting information. The viewing angle is restored (step S114). Then, after step S114, the control unit 101 returns the process to step S106, and repeats the processes after step S106.

  If it is determined in step S111 that the line of sight of a person other than the authentication user who faces the display screen 5a within the set viewing angle of the display screen 5a has not been detected, the control unit 101 sets the setting information It is determined whether or not an acquisition notification (setting information change notification) is detected (step S115).

  If it is determined in step S115 that the setting information acquisition notification (setting information change notification) has not been detected, the control unit 101 returns the process to step S106, and repeats the processes after step S106.

  If it is determined in step S115 that the setting information acquisition notification (setting information change notification) has been detected, the control unit 101 returns the process to step S105 to recognize the changed setting information, and The processes after S105 are repeated.

[Effect of the embodiment]
As described above, according to the above-described embodiment, it is possible to realize an electronic device that can be changed to a power-saving state in an appropriate predetermined time according to the place of use. In addition, it is possible to provide an electronic device that can be changed to a power saving state in an appropriate predetermined time according to not only the use location type but also the display content type.

  Further, in the above-described embodiment, regarding the measurement of the transition time to the sleep state, the presence or absence of the line of sight toward the display screen 5a of the user having the authority to use is attached as a condition. It is possible to control the transition to the sleep state in consideration of the above.

  Moreover, according to the electronic device of the above-described embodiment, the viewing angle with respect to the display image can be controlled to be an appropriate viewing angle according to the use place type, and a third person's peep is detected. Sometimes, by performing display control and image control corresponding to the usage location type and display content type, it is possible to effectively prevent peeping by a peeper.

[Other Embodiments or Modifications]
In the above-described embodiment, the transition time to the sleep state according to the use place type, the transition condition, the viewing angle, and the peeping prevention control method are all described as being set in advance by the user as table information. However, the table information may be stored in advance in the memory 102 of the electronic device 1 at the time of shipment or sale. Further, a part of the table information may be stored at the time of shipment or sale, and the user may add the use location type, the display content type, and the setting information to the table information.

  In the above-described embodiment, the setting information of the table is set so as to correspond to both the usage location type and the display content type. However, the table information may be table information composed of setting information corresponding only to the use location type, or may be table information composed of setting information corresponding to only the display content type.

  Further, part or all of the table information may be configured as a cloud on the Internet instead of the memory 102. In this case, the electronic device 1 includes a communication unit that performs communication through the Internet, and is connected to a server device having table information through the Internet.

  In the above-described embodiment, the image recognition processing unit 108 and the authentication face image storage unit 109 are built in the electronic device 1. However, as described above, a part or all of each processing and storage is performed on a cloud on the Internet. It is good also as a structure of.

  In the above-described embodiment, the example in which the control unit 101 detects that the user has performed some operation input has been described as the sleep state cancellation condition. However, the present invention is not limited to this, and the line of sight of the user having the authority to use is detected. It is good to do. It is also possible to set the release condition to detect both the operation input and the line of sight of the user having the use authority. In addition, when the sleep state is canceled, conditions can be set so that user authentication such as password authentication, face authentication, voice recognition, and biometric authentication such as fingerprint and iris is performed.

  Furthermore, sleep state cancellation conditions may be set in advance according to the use location type and the display content type, and may be stored and held in the table information. In this case, the user may set the sleep condition release condition, or the electronic device 1 manufacturer or sales company may create it in advance. Therefore, in that case, the cancellation condition can be changed according to the use location type and the display content type. And by making the release condition more difficult to release, it is possible to effectively prevent peeping even when peeping by the peeper continues despite the sleep state. it can.

In addition, as described above, the state in which the image on the display screen is not displayed and power saving is not limited to the sleep state, even in the above-described hibernation state or power-off state. Good. Of course, it is also possible to set the transition time and transition conditions to a plurality of states, with the sleep state, the hibernation state, and the power-off state as separate states. In this case, the relationship between the length of each transition time is generally
The transition time to the sleep state ≦ the transition time to the hibernation state ≦ the transition time to the power-off state.

  Moreover, the switching means of the viewing angle of the display screen 5a used in the above-described embodiment is an example, and is not limited to this, and any means can be used as long as the viewing angle of the display screen can be controlled. It may be a thing.

  Further, the electronic device of the present invention is not limited to the electronic device 1 described above, and it is needless to say that any electronic device having a display screen can be used. Further, even if an electronic device that is too large to be called a portable electronic device such as a desktop PC can be carried using an automobile or the like, the portable electronic device can be used as a portable electronic device. Is applicable.

  The present invention provides a portable electronic device or a portable electronic device when performing display control and image control corresponding to the use location type, and when performing display control and image control corresponding to the use location type and the display content type. However, when performing display control or image control corresponding to only the display content type, portability and portability are not necessarily required. That is, in this case, any electronic device provided with a display screen may be used.

DESCRIPTION OF SYMBOLS 1 ... Electronic device, 2 ... Electronic device main body, 5 ... LCD, 5a ... Display screen, 7 ... Viewing angle switching panel, 101 ... Control part, 102 ... Memory, 107 ... Camera, 108 ... Image recognition process part, 109 ... Authentication Face image storage unit, 110 ... current position detection unit, 111 ... timer unit, 113 ... peeping prevention control processing unit

Claims (14)

A display unit comprising a display screen;
Current position detecting means for detecting the current position;
A usage location type certifying means for certifying which of the plurality of types of usage location types set in advance is the current location detected by the current location detection means;
Corresponding to the use location type, a predetermined time for shifting from a state in which an image is displayed on the display screen to a state in which power is not displayed on the display screen is displayed on the display screen. A table information storage unit for storing table information for storing a predetermined time during which an image is continuously displayed without changing the image content;
Obtaining means for obtaining from the table information storage unit the predetermined time corresponding to the use place type authorized by the use place type authorization means;
Control means for controlling a transition from a state in which an image is displayed on the display screen to a state in which power is saved without displaying an image on the display screen, based on the acquired predetermined time;
Viewing angle control means for controlling the viewing angle of the display screen;
Equipped with a,
In the table information storage unit, in addition to the predetermined time corresponding to the use place type authorized by the use place type authorization means, information of a viewing angle corresponding to the use place type is stored,
The acquisition means acquires information on the viewing angle in addition to the predetermined time,
The electronic device according to claim 1, wherein the viewing angle control unit controls the viewing angle of the display screen based on the viewing angle information corresponding to the use place type acquired by the acquiring unit . A display unit comprising a display screen;
Current position detecting means for detecting the current position;
A usage location type certifying means for certifying which of the plurality of types of usage location types set in advance is the current location detected by the current location detection means;
Corresponding to the use location type, a predetermined time for shifting from a state in which an image is displayed on the display screen to a state in which power is not displayed on the display screen is displayed on the display screen. A table information storage unit for storing table information for storing a predetermined time during which an image is continuously displayed without changing the image content;
Obtaining means for obtaining from the table information storage unit the predetermined time corresponding to the use place type authorized by the use place type authorization means;
Control means for controlling a transition from a state in which an image is displayed on the display screen to a state in which power is saved without displaying an image on the display screen, based on the acquired predetermined time;
An image processing unit that performs image processing to transform the image in order to prevent peeping of the image displayed on the display screen, and image processing means capable of performing multiple types of image processing as the image transformation mode ;
Equipped with a,
The table information storage unit stores the transformation mode of the image corresponding to the use place type,
Wherein, in the visual line detecting means, when detecting a line of sight of a person other than the user having the authority for use, from the table information storage section, to the place of use type certified by the use location Type Certification means depending obtained the transformation aspects of the image, the image displayed on the display screen, wherein the that electronic to equipment that controls the image processing unit so as to transform at transformation aspect of the acquired image . A display unit comprising a display screen;
Current position detecting means for detecting the current position;
A usage location type certifying means for certifying which of the plurality of types of usage location types set in advance is the current location detected by the current location detection means;
Corresponding to the use location type, a predetermined time for shifting from a state in which an image is displayed on the display screen to a state in which power is not displayed on the display screen is displayed on the display screen. A table information storage unit for storing table information for storing a predetermined time during which an image is continuously displayed without changing the image content;
Obtaining means for obtaining from the table information storage unit the predetermined time corresponding to the use place type authorized by the use place type authorization means;
Control means for controlling a transition from a state in which an image is displayed on the display screen to a state in which power is saved without displaying an image on the display screen, based on the acquired predetermined time;
With
The control means has a function of returning from a state of achieving power saving without displaying an image on the display screen to a state of displaying an image on the display screen according to a predetermined release condition,
The predetermined release condition, use location Type and / or display content features and to that electronic device that it is the one corresponding to the type. A display content type authorization means for authorizing a display content type of an image being displayed on the display screen;
The table information of the table information storage unit stores the predetermined time corresponding to the display content type in addition to the use place type,
The acquisition unit, the place of use the site of use and approved by the type certification unit type and the display content type the certified certified means corresponding to the display content type and obtains the predetermined time claims 1 to The electronic device according to claim 3 . A display unit having a display screen, current position detecting means for detecting a current position, and power saving that does not display an image on the display screen from a state in which the image is displayed on the display screen, corresponding to a use place type Table information for storing table information for storing a predetermined time which is a predetermined time to be shifted to a desired state and the image displayed on the display screen is continuously displayed without changing the image content A display control method for the display screen of an electronic device comprising a storage unit,
A use location type certification step for authorizing which of the plurality of types of use location types set in advance is the current location detected by the current location detection means;
An acquisition step of acquiring from the table information storage unit the predetermined time corresponding to the use location type authorized in the use location type authorization step;
Based on the predetermined time acquired in the acquisition step, a control step for controlling a transition from a state in which an image is displayed on the display screen to a state in which power is not displayed on the display screen;
A viewing angle control step for controlling the viewing angle of the display screen;
I have a,
In the table information storage unit, in addition to the predetermined time corresponding to the use place type authorized in the use place type authorization step, information of a viewing angle corresponding to the use place type is stored,
In the acquisition step, in addition to the predetermined time, information on the viewing angle is acquired,
In the viewing angle control step, the display angle of the display screen is controlled based on the information on the viewing angle corresponding to the use place type acquired in the acquisition step. Display control method. A display unit having a display screen, current position detecting means for detecting a current position, and power saving that does not display an image on the display screen from a state in which the image is displayed on the display screen, corresponding to a use place type Table information for storing table information for storing a predetermined time which is a predetermined time to be shifted to a desired state and the image displayed on the display screen is continuously displayed without changing the image content A display control method for the display screen of an electronic device comprising a storage unit,
A use location type certification step for authorizing which of the plurality of types of use location types set in advance is the current location detected by the current location detection means;
An acquisition step of acquiring from the table information storage unit the predetermined time corresponding to the use location type authorized in the use location type authorization step;
Based on the predetermined time acquired in the acquisition step, a control step for controlling a transition from a state in which an image is displayed on the display screen to a state in which power is not displayed on the display screen;
An image processing step for performing image processing to transform the image in order to prevent peeping of the image displayed on the display screen;
Have
The table information storage unit stores the transformation mode of the image corresponding to the use place type,
In the control step, when the line-of-sight detection means detects the line of sight of a person other than the user having the authority to use, the table information storage unit responds to the use place type authorized in the use place type authorization step. The image processing process is controlled so as to acquire a transformation mode of the image and transform the image displayed on the display screen in the transformation mode of the acquired image.
A display control method for a display screen of an electronic device. A display unit having a display screen, current position detecting means for detecting a current position, and power saving that does not display an image on the display screen from a state in which the image is displayed on the display screen, corresponding to a use place type Table information for storing table information for storing a predetermined time which is a predetermined time to be shifted to a desired state and the image displayed on the display screen is continuously displayed without changing the image content A display control method for the display screen of an electronic device comprising a storage unit,
A use location type certification step for authorizing which of the plurality of types of use location types set in advance is the current location detected by the current location detection means;
An acquisition step of acquiring from the table information storage unit the predetermined time corresponding to the use location type authorized in the use location type authorization step;
Based on the predetermined time acquired in the acquisition step, a control step for controlling a transition from a state in which an image is displayed on the display screen to a state in which power is not displayed on the display screen;
Have
In the control step, according to a predetermined release condition, from a state of saving power without displaying an image on the display screen, to return to a state of displaying an image on the display screen,
The display control method for a display screen of an electronic device, wherein the predetermined release condition is determined according to a use place type and / or a display content type. A display unit comprising a display screen;
Current position detecting means for detecting the current position;
A usage location type certifying means for certifying which of the plurality of types of usage location types set in advance is the current location detected by the current location detection means;
Viewing angle control means for controlling the viewing angle of the display screen;
A table information storage unit for storing table information for storing information on a viewing angle corresponding to the use place type;
Obtaining means for obtaining information on the viewing angle corresponding to the use place type authorized by the use place type authorization means from the table information storage unit;
Control means for controlling the viewing angle with respect to the display screen by the viewing angle control means based on the acquired information on the viewing angle;
Image processing means for changing the image displayed on the display screen to prevent peeping;
Equipped with a,
The image processing means can change the image displayed on the display screen in a plurality of ways,
The table information storage unit stores the image transformation method corresponding to the use place type,
The control means controls the image processing means when the line-of-sight detection means detects the line of sight of a person other than a user who has authority to use, and displays the display by the image transformation method corresponding to the use place type. An electronic device characterized in that an image displayed on a screen is transformed to prevent peeping . A display content type authorization means for authorizing a display content type of an image being displayed on the display screen;
The table information of the table information storage unit stores information on the viewing angle corresponding to the display content type in addition to the use place type,
The acquisition means acquires the information on the viewing angle corresponding to the use place type authorized by the use place type authorization means and the display content type authorized by the display content type authorization means. 8. The electronic device according to 8 . A display unit having a display screen; a current position detecting unit for detecting a current position; a viewing angle control unit for controlling a viewing angle of the display screen; and table information for storing information on a viewing angle corresponding to a use place type. A display control method for the display screen of an electronic device comprising a table information storage unit for storing,
A use location type certification step for authorizing which of the plurality of types of use location types set in advance is the current location detected by the current location detection means;
An acquisition step of acquiring, from the table information storage unit, information on the viewing angle corresponding to the usage location type certified in the usage location type authorization step;
Based on the information on the viewing angle acquired in the acquiring step, a control step of controlling the viewing angle with respect to the display screen by the viewing angle control means,
An image processing step for transforming the image displayed on the display screen to prevent peeping;
Have
In the image processing step, the image displayed on the display screen can be transformed in a plurality of ways,
The table information storage unit stores the image transformation method corresponding to the use place type,
In the control step, when the line-of-sight detection means detects the line of sight of a person other than the user who has authority to use, the image processing means is controlled, and the display is performed with the image transformation method corresponding to the use place type A display control method for a display screen of an electronic device, wherein an image displayed on the screen is changed to prevent peeping . A display unit having a display screen, current position detecting means for detecting a current position, and power saving that does not display an image on the display screen from a state in which the image is displayed on the display screen, corresponding to a use place type Table information for storing table information for storing a predetermined time which is a predetermined time to be shifted to a desired state and the image displayed on the display screen is continuously displayed without changing the image content A computer included in an electronic device including a storage unit,
A usage location type certification step for authorizing which of the plurality of types of usage location types set in advance is the current location detected by the current location detection means;
An acquisition step of acquiring from the table information storage unit the predetermined time corresponding to the use location type authorized in the use location type authorization step;
A control step for controlling a transition from a state in which an image is displayed on the display screen to a state in which power is not displayed on the display screen based on the predetermined time acquired in the acquisition step;
A viewing angle control step for controlling the viewing angle of the display screen;
A program for executing,
In the table information storage unit, in addition to the predetermined time corresponding to the use place type authorized in the use place type authorization step, information of a viewing angle corresponding to the use place type is stored,
In the acquisition step, in addition to the predetermined time, information on the viewing angle is acquired,
In the viewing angle control step, the viewing angle of the display screen is controlled based on the viewing angle information corresponding to the use place type acquired in the acquisition step.
A display control program for a display screen of an electronic device. A display unit having a display screen, current position detecting means for detecting a current position, and power saving that does not display an image on the display screen from a state in which the image is displayed on the display screen, corresponding to a use place type Table information for storing table information for storing a predetermined time which is a predetermined time to be shifted to a desired state and the image displayed on the display screen is continuously displayed without changing the image content By a computer provided in an electronic device including a storage unit,
A usage location type certification step for authorizing which of the plurality of types of usage location types set in advance is the current location detected by the current location detection means;
An acquisition step of acquiring from the table information storage unit the predetermined time corresponding to the use location type authorized in the use location type authorization step;
A control step for controlling a transition from a state in which an image is displayed on the display screen to a state in which power is not displayed on the display screen based on the predetermined time acquired in the acquisition step;
An image processing step for performing image processing to transform the image in order to prevent peeping of the image displayed on the display screen, and a plurality of types of image processing as the image transformation mode;
A program for executing
The table information storage unit stores the transformation mode of the image corresponding to the use place type,
In the control step, when the line-of-sight detection means detects the line of sight of a person other than the user having the authority to use, the table information storage unit responds to the use place type authorized in the use place type authorization step. The image processing process is controlled so as to acquire a transformation mode of the image and transform the image displayed on the display screen in the transformation mode of the acquired image.
A display control program for a display screen of an electronic device. A display unit having a display screen, current position detecting means for detecting a current position, and power saving that does not display an image on the display screen from a state in which the image is displayed on the display screen, corresponding to a use place type Table information for storing table information for storing a predetermined time which is a predetermined time to be shifted to a desired state and the image displayed on the display screen is continuously displayed without changing the image content By a computer provided in an electronic device including a storage unit,
A usage location type certification step for authorizing which of the plurality of types of usage location types set in advance is the current location detected by the current location detection means;
An acquisition step of acquiring from the table information storage unit the predetermined time corresponding to the use location type authorized in the use location type authorization step;
A control step for controlling a transition from a state in which an image is displayed on the display screen to a state in which power is not displayed on the display screen based on the predetermined time acquired in the acquisition step;
A program for executing
In the control step, according to a predetermined release condition, from a state of saving power without displaying an image on the display screen, to return to a state of displaying an image on the display screen,
A program for display control of a display screen of an electronic device, wherein the predetermined release condition depends on a use place type and / or a display content type. A display unit having a display screen; a current position detecting unit for detecting a current position; a viewing angle control unit for controlling a viewing angle of the display screen; and table information for storing information on a viewing angle corresponding to a use place type. By a computer included in an electronic device including a table information storage unit for storing,
A usage location type certification step for authorizing which of the plurality of types of usage location types set in advance is the current location detected by the current location detection means;
An acquisition step of acquiring, from the table information storage unit, information on the viewing angle corresponding to the usage location type certified in the usage location type certification step;
A control step of controlling the viewing angle with respect to the display screen by the viewing angle control means based on the information of the viewing angle acquired in the acquiring step;
An image processing step for transforming the image displayed on the display screen to prevent peeping;
A program for executing
In the image processing step, the image displayed on the display screen can be transformed in a plurality of ways,
The table information storage unit stores the image transformation method corresponding to the use place type,
In the control step, when the line-of-sight detection means detects the line of sight of a person other than the user who has authority to use, the image processing means is controlled, and the display is performed using the image transformation method corresponding to the use place type. Transform the image displayed on the screen to prevent peeping
A display control program for a display screen of an electronic device .

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