KR20170034616A - Cover for smart devicce, method for controlling the cover and smart device - Google Patents

Abstract

The present invention relates to a smart device cover, a control method thereof, and a smart device, and more particularly, to a smart device cover having a cover display, a control method thereof, and a smart device mounted thereon. A cover for a smart device according to an aspect of the present invention is a cover for a smart device having a rear surface mounted with a back surface of the smart device and having a cover battery for supplying an interface and power for communication and power connection with the installed smart device cover; A front cover which is connected to the rear surface so as to be open / close and is provided so that a screen of the smart device is covered when the screen of the smart device is open and closed; A display installed on an inner surface of the front cover in contact with the smart device when the front cover is closed; And a controller for receiving image data from the smart device through the interface and outputting an image through the display based on the received image data based on at least one of a charge amount of the cover battery and a charge amount of the battery of the smart device, And a controller for controlling power supplied to the display from the cover battery, the battery of the smart device through the interface, and a combination of the two.

Description

TECHNICAL FIELD [0001] The present invention relates to a cover for a smart device, a control method thereof, and a smart device,

The present invention relates to a smart device cover, a control method thereof, and a smart device, and more particularly, to a smart device cover having a cover display, a control method thereof, and a smart device mounted thereon.

Currently, smart devices generally use a touch-based input interface to a display screen. Such a touch-type input method has an advantage that the user can intuitively use the touch-type input method without learning. However, there is a disadvantage that scratches or cracks occur on the display screen as the user directly touches the display screen. In order to protect such a display screen, a variety of smart device covers have been proposed. Among them, a flip cover type is most widely used.

The flip-type cover is most typically a back cover to which the smart device is fixed while the back case is detached, and a front cover that covers the screen to prevent the touch screen of the smart device from being damaged.

However, existing flip covers only function to protect smart devices from external impact or scratches. Recently, attempts have been made to introduce various additional functions in smart device covers in order to increase user convenience.

An object of the present invention is to provide a cover for a smart device having a cover display capable of displaying various screens under the control of the smart device, a control method thereof, and a smart device.

Another object of the present invention is to provide a cover for a smart device, a control method thereof, and a smart device that can be controlled through a user experience (UX: User Experience) for a cover display.

Another object of the present invention is to provide a smart device cover, a control method thereof, and a smart device having a cover display for outputting a message related to a notification event when a notification event irrelevant to an application running in the smart device occurs.

Another object of the present invention is to provide a smart device cover, a control method thereof, and a smart device having a cover display whose power is managed according to the closed state.

Another object of the present invention is to provide a cover for a smart device, a control method therefor, and a smart device, which have a cover display in which a video is prevented from being turned off according to the waiting time of the smart device during video output.

Another object of the present invention is to provide a smart device cover for efficiently managing a battery of a smart device cover provided separately from a battery of the smart device during power consumption or charging, a control method thereof, and a smart device.

It is to be understood that the present invention is not limited to the above-described embodiments and that various changes and modifications may be made without departing from the spirit and scope of the present invention. .

According to an aspect of the present invention, there is provided a back cover comprising: a rear cover to which a back surface of a smart device having a rear case is detached; and a communication interface for communicating with the installed smart device; And a cover display is installed on the inner side of the smart device in a closed state while the screen of the smart device is closed so that the screen of the smart device is closed when the screen of the smart device is open and closed. Front cover; And a hinge sensor for detecting a closed state of the front cover; And transmitting the closed state to the smart device through the communication interface, receiving image data transmitted from the smart device according to the closed state, and transmitting the image data via the cover display based on the received image data, And a controller for outputting the smart device cover.

According to another aspect of the present invention, there is provided a back cover comprising: a rear cover to which a back side of a smart device having a rear case is detachably mounted, the communication device having a communication interface for communicating with the smart device; A front cover which is connected to the rear surface so as to be open and closed and is provided with a screen of the smart device in a closed state while the screen of the smart device is open and a cover display for outputting an image is installed; And a controller for receiving information on the notification event via the interface when a notification event occurs in the smart device and outputting a message regarding the notification event through the cover display .

According to another aspect of the present invention, there is provided a back cover comprising: a rear cover to which a back surface of a smart device having a rear case is detachably mounted and a communication interface for communicating with the installed smart device; The smart device is connected to the rear surface so as to be open and closed and is provided so that the screen of the smart device is covered when the screen of the smart device is seen and closed in an open state, cover; And a display unit for receiving image data related to a screen displayed on the smart device through the communication interface and displaying a popup message corresponding to the notification event when the notification event is generated in the smart device, A cover for a smart device including a controller for outputting the smart device can be provided.

According to another aspect of the present invention, there is provided a back cover comprising: a rear cover to which a back surface of a smart device having a rear case is detachably mounted and a communication interface for communicating with the installed smart device; The smart device is connected to the rear surface so as to be open and closed and is provided so that the screen of the smart device is covered when the screen of the smart device is seen and closed in the open state, A front cover on which a cover display is installed on an inner side facing the display of the smart device; A hinge sensor for sensing a closed state of the front cover; And a controller for receiving image data of an application running on the smart device from the smart device via the communication interface and outputting an image through the cover display, A cover for a smart device can be provided.

According to another aspect of the present invention, there is provided a back cover comprising: a rear cover to which a back surface of a smart device having a rear case is detachably mounted and a communication interface for communicating with the installed smart device; The smart device is connected to the rear surface so as to be open and closed and is provided so that the screen of the smart device is covered when the screen of the smart device is seen and closed in the open state, A front cover on which a cover display is installed on an inner side facing the display of the smart device; And a control unit for receiving image data of an application running on the smart device from the smart device via the communication interface and outputting an image through the cover display, wherein the cover display and the display of the smart device are powered on A cover for a smart device that transmits a live signal so as to be kept in a state of being able to be kept in a state of being closed can be provided.

According to another aspect of the present invention, there is provided a back cover comprising: a back cover having a back case mounted on a back side of a smart device in a state of a rear case, and a cover battery for supplying an interface and power for communication and power connection with the smart device; A front cover which is connected to the rear surface so as to be open / close and is provided so that a screen of the smart device is covered when the screen of the smart device is open and closed; A display installed on an inner surface of the front cover in contact with the smart device when the front cover is closed; And a controller for receiving image data from the smart device via the interface and outputting an image through the display based on the received image data, wherein the image is based on at least one of a charge amount of the cover battery and a charge amount of the battery of the smart device. And a controller for controlling power supplied from the cover battery, the battery of the smart device through the interface, and a combination of the two to supply power required for video output of the display, have.

According to still another aspect of the present invention, there is provided a smart device including: a rear cover on which a rear surface of a smart device is mounted in a state in which the rear case is detached, and an interface for communication and power connection is provided; A front cover which is connected to the rear surface so as to be open / close and is provided so that a screen of the smart device is covered when the screen of the smart device is open and closed; A display installed on an inner surface of the front cover in contact with the smart device when the front cover is closed; A cover battery installed on the rear cover for supplying power required for operation of the display; And a controller for receiving image data from the smart device through the interface, outputting an image through the display based on the received image data, and for charging the battery of the smart device via the interface, And a controller for controlling to supply the smart device cover from the smart device.

According to another aspect of the present invention, there is provided a back cover comprising: a rear cover to which a rear surface of a smart device is mounted in a state that the rear case is detached, and an interface for communication and power connection is provided with the installed smart device; A front cover which is connected to the rear surface so as to be open / close and is provided so that a screen of the smart device is covered when the screen of the smart device is open and closed; A display installed on an inner surface of the front cover in contact with the smart device when the front cover is closed; A cover battery installed on the rear cover for supplying power required for operation of the display; A power port connected to an external power source and supplied with power; And an interface for receiving image data from the smart device, outputting an image through the display based on the received image data, and controlling the power supplied from the external power source through the interface according to a predetermined priority order. A smart device cover for controlling the charging of the battery of the smart device and the cover battery may be provided.

It is to be understood that the solution of the problem of the present invention is not limited to the above-mentioned solutions, and the solutions which are not mentioned can be clearly understood by those skilled in the art to which the present invention belongs It will be possible.

According to the present invention, it is possible to display the image displayed on the smart device through the cover display installed on the cover for the smart device, or to display the home screen, the desktop screen, the lock screen of the smart device, By displaying the information through the two screens, the user can more conveniently use the smart device.

According to the present invention, the display for the smart device can be activated by a simple operation using the timing at which the cover for the smart device is closed.

According to the present invention, it is possible to save the battery by disabling the display of the smart device when displaying the image on the display of the smart device cover.

According to the present invention, a message relating to a notification event is displayed through a cover display provided on a cover for a smart device, so that a message can be confirmed without disturbing the screen when a movie is viewed or played by a display of the smart device itself.

According to the present invention, when an image is displayed on a display of a smart device cover, the display of the smart device is inactivated to save battery or display another screen, so that users can receive various information at the same time.

According to the present invention, the power management of the cover display and the display of the smart device is appropriately managed according to the closed state of the cover for the smart device, so that efficient power management can be performed.

In addition, according to the present invention, it is possible to prevent an image of a cover display from being turned off even if a user does not input a separate input, so that an application that is performed for a long time such as a game or a moving image appreciation Can be used.

According to the present invention, it is possible to efficiently manage the battery of the cover for the smart device provided separately from the battery of the smart device during power consumption or charging, so that the urgent side of charging the battery of the smart device and the cover battery can be charged first, So that the power consumed by the cover for the smart device and the smart device can be effectively used.

The effects of the present invention are not limited to the above-mentioned effects, and the effects not mentioned can be clearly understood by those skilled in the art from the present specification and the accompanying drawings.

1 is a perspective view of a smart device cover in which a smart device is detached according to an embodiment of the present invention.
2 is a perspective view of a cover for a smart device equipped with a smart device according to an embodiment of the present invention.
3 is a plan view of an open state of a cover for a smart device according to an embodiment of the present invention.
4 is a plan view of a closed state of a cover for a smart device according to an embodiment of the present invention.
5 is a perspective view of the back surface of a cover for a smart device according to an embodiment of the present invention.
6 is an exploded perspective view of a rear cover of a smart device cover according to an embodiment of the present invention.
7 is a block diagram of a connection between a smart device cover and a smart device according to an embodiment of the present invention.
8 is a block diagram of a configuration of a smart device cover according to an embodiment of the present invention.
9 is a diagram showing a screen displayed by a smart device mounted on a cover for a smart device according to an embodiment of the present invention.
10 is a diagram illustrating an operation of copying out a screen displayed by a smart device equipped with a cover for a smart device according to an embodiment of the present invention.
FIG. 11 is a view showing that a display of a smart device outputs a different screen when a screen for a smart device according to an embodiment of the present invention is displayed by copy output.
12 is a view showing that the display of the smart device is turned off when the screen for the smart device according to the embodiment of the present invention is copied and output.
FIG. 13 is a diagram illustrating a display of a smart device holding a display of a touch object when a screen for smart device according to an embodiment of the present invention is displayed by copying and outputting the screen.
FIG. 14 is a diagram illustrating an operation of displaying a screen on which a smart device cover according to an embodiment of the present invention is set in advance.
15 is a flowchart of an example of a method of controlling a cover for a smart device according to an embodiment of the present invention.
16 to 18 are diagrams illustrating a message output operation regarding a notification event of the cover for a smart device according to the embodiment of the present invention.
FIG. 19 is a diagram of an operation when an application related to a notification event is being executed in the smart device according to the embodiment of the present invention. FIG.
20 is a diagram illustrating an execution operation of an application linked to a message related to a notification event according to an embodiment of the present invention.
21 and 22 are diagrams illustrating an example of an operation of outputting a notification message through a display of a smart device according to an embodiment of the present invention.
23 is a diagram illustrating a screen switching operation according to a notification event according to an embodiment of the present invention.
24 is a diagram of a secondary display of a cover for a smart device according to an embodiment of the present invention.
25 is a diagram illustrating an operation of outputting a notification message to a secondary display of a cover for a smart device according to an embodiment of the present invention.
26 is a flowchart of another embodiment of a control method for a smart device cover according to an embodiment of the present invention.
FIG. 27 is a diagram illustrating an operation of powering off a display and a cover display of a smart device according to an embodiment of the present invention. FIG.
28 is a diagram illustrating an operation in which the display of the smart device and the cover display are kept powered on according to the embodiment of the present invention.
29 is a diagram illustrating an operation of turning off the display of the smart device and keeping the power of the cover display in the on state according to the embodiment of the present invention.
30 is a view showing a closed state of a cover for a smart device according to an embodiment of the present invention.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to be illustrative of the present invention and not to limit the scope of the invention. Should be interpreted to include modifications or variations that do not depart from the spirit of the invention.

Although the terms used in the present invention have been selected in consideration of the functions of the present invention, they are generally used in general terms. However, the present invention is not limited to the intention of the person skilled in the art to which the present invention belongs . However, if a specific term is defined as an arbitrary meaning, the meaning of the term will be described separately. Accordingly, the terms used herein should be interpreted based on the actual meaning of the term rather than on the name of the term, and on the content throughout the description.

The drawings attached hereto are intended to illustrate the present invention easily, and the shapes shown in the drawings may be exaggerated and displayed as necessary in order to facilitate understanding of the present invention, and thus the present invention is not limited to the drawings.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a detailed description of known configurations or functions related to the present invention will be omitted when it is determined that the gist of the present invention may be obscured.

According to an aspect of the present invention, there is provided a back cover comprising: a rear cover to which a back surface of a smart device having a rear case is detached; and a communication interface for communicating with the installed smart device; And a cover display is installed on the inner side of the smart device in a closed state while the screen of the smart device is closed so that the screen of the smart device is closed when the screen of the smart device is open and closed. Front cover; And a hinge sensor for detecting a closed state of the front cover; And transmitting the closed state to the smart device through the communication interface, receiving image data transmitted from the smart device according to the closed state, and transmitting the image data via the cover display based on the received image data, And a controller for outputting the smart device cover.

In addition, the controller may receive the image data and output an image to the cover display when the front cover is opened by performing a closing operation within a predetermined time.

Further, the controller may output to the cover display an image of the screen displayed by the smart device at the start time of the closing operation.

The controller may receive the image data and output an image to the cover display when the front cover is open.

The controller may receive the image data and output an image to the cover display when the front cover is opened within a predetermined time after the front cover is closed.

The controller may be configured to turn off the cover display when the front cover is closed and to turn off the cover display when the front cover is opened after a predetermined time has elapsed after the front cover is closed .

Also, the image output through the cover display may include a screen displayed by the smart device at the time when the closed state is established.

In addition, when the cover display outputs the displayed screen, the smart device can turn off the screen.

In addition, when the cover display outputs the displayed screen, the smart device can display a screen different from the screen displayed previously.

The different screen may include any one of a home screen, a lock screen, and a desktop screen of the smart device.

If the displayed screen includes a touch object, the smart device may display the same object as the touch object or an object corresponding to the touch object.

Also, the image output through the cover display may include any one of a home screen, a lock screen, and a desktop screen of the smart device.

In addition, the smart device can maintain the screen displayed before.

The cover display is provided as a touch screen for receiving a touch input, and the controller transmits the touch input inputted through the cover display to the smart device through the communication interface, Receiving the image data related to the screen on which the operation according to the input is performed, and outputting the screen on which the operation is performed to the cover display.

According to another aspect of the present invention, there is provided a back cover comprising: a rear cover to which a back side of a smart device having a rear case is detachably mounted, the communication device having a communication interface for communicating with the smart device; A front cover which is connected to the rear surface so as to be open and closed and is provided with a screen of the smart device in a closed state while the screen of the smart device is open and a cover display for outputting an image is installed; And a controller for receiving information on the notification event via the interface when a notification event occurs in the smart device and outputting a message regarding the notification event through the cover display .

The notification event may include at least one of a telephone call, a text message reception, a messenger application call reception, an update application reception of an installed application, a push message reception, and an alarm time arrival.

In addition, the controller may receive information on the notification event when the notification event is not related to an application displayed on the smart device, and may output the message through the cover display.

If the displayed application is at least one of an image viewer, a text viewer, a folder search application, a video player, a game application, and a web browser, the controller receives information on the notification event, Can be output.

The controller may receive information on the notification event when the notification event occurs while the screen of the smart device is inactivated, and output the message through the cover display.

Wherein the cover display is provided as a touch display and the controller transmits the touch input to the smart device via the communication interface when a user touch input for the message is received via the touch display, Receives the image data related to the application linked to the message from the smart device through the interface, and outputs the screen of the application linked to the message through the cover display based on the image data.

The smart device cover may further include a hinge sensor for detecting a closed state of the front cover, wherein the controller receives information on the notification event according to a state of the front cover, And can output the message through the network.

The controller may receive information on the notification event when the front cover is open.

The smart device cover may further include a hinge sensor for detecting a closed state of the front cover, and the cover display may include a cover installed on the inner side of the smart device in a closed state, And a secondary display installed on the outer surface of the display and the front cover, and the message can be output through either the main display or the secondary display depending on the open state of the front cover.

When the front cover is opened, the message is output through the main display. When the front cover is closed, the message can be output through the auxiliary display.

According to another aspect of the present invention, there is provided a back cover comprising: a rear cover to which a back surface of a smart device having a rear case is detachably mounted and a communication interface for communicating with the installed smart device; The smart device is connected to the rear surface so as to be open and closed and is provided so that the screen of the smart device is covered when the screen of the smart device is seen and closed in an open state, cover; And a display unit for receiving image data related to a screen displayed on the smart device through the communication interface and displaying a popup message corresponding to the notification event when the notification event is generated in the smart device, A cover for a smart device including a controller for outputting the smart device can be provided.

The controller may receive the image data and output the image data through the cover display if the notification event is an event that is not related to an application displayed on the smart device.

If the displayed application is at least one of an image viewer, a text viewer, a folder search application, a video player, a game application, and a web browser, the controller may receive the image data and output the received image data through the cover display.

The notification event may include at least one of a telephone call, a text message reception, a messenger application call reception, an update application reception of an installed application, a push message reception, and an alarm time arrival.

According to another aspect of the present invention, there is provided a back cover comprising: a rear cover to which a back surface of a smart device having a rear case is detachably mounted and a communication interface for communicating with the installed smart device; The smart device is connected to the rear surface so as to be open and closed and is provided so that the screen of the smart device is covered when the screen of the smart device is seen and closed in the open state, A front cover on which a cover display is installed on an inner side facing the display of the smart device; A hinge sensor for sensing a closed state of the front cover; And a controller for receiving image data of an application running on the smart device from the smart device via the communication interface and outputting an image through the cover display, A cover for a smart device can be provided.

The hinge sensor may include a state in which the front cover is closed to be in contact with the display of the smart device, a state in which the front cover is tangent to the rear cover, and a state in which the front cover is open between the closed state and the non- Wherein the controller immediately turns off the power of the cover display when the closed state is closed and turns off the power of the cover display after a predetermined time when the turned off state, , And can maintain the power of the cover display in the on state in the open state.

When the front cover is closed, the cover display may be turned off together with the display of the smart device.

In addition, when the front cover is opened side by side with the rear cover so as to be viewed simultaneously with the display of the smart device, the cover display can be kept powered on with the display of the smart device.

And the front cover is opened in parallel with the rear cover so as to be viewed simultaneously with the display of the smart device, the cover display is turned on after the display of the smart device is turned off at the first predetermined time elapsed time Or the power may be turned off after a second predetermined time elapses therefrom.

In addition, when the outer surface of the front cover is in contact with the rear cover, any one of the display of the smart device and the cover display may be turned off and the other may be kept powered on .

Also, the display of the smart device and the display being used by the user of the cover display can be kept on.

The controller transmits information about the closed state through the communication interface, and when the front cover is detached in accordance with the received information, the smart device detects the sensing of the illuminance sensor of the smart device Determine an indication of the display of the smart device and the cover display being used by the user based on the result and transmit an off signal of the cover display to the controller via the communication interface if the display of the smart device is in use have.

Also, the display that the user is using may be a display of the smart device and a display that has finally received a user's touch among the cover displays.

The controller transmits information on the open state and the touch input to the cover display through the communication interface. When the smart cover is in a state where the front cover is detached according to the received information, Wherein the smart device determines that the touch input to the display of the smart device and the touch input of the touch input to the cover display are received by the user, and if the display of the smart device is in use, To transmit the off signal of the cover display to the controller.

According to another aspect of the present invention, there is provided a back cover comprising: a rear cover to which a back surface of a smart device having a rear case is detachably mounted and a communication interface for communicating with the installed smart device; The smart device is connected to the rear surface so as to be open and closed and is provided so that the screen of the smart device is covered when the screen of the smart device is seen and closed in the open state, A front cover on which a cover display is installed on an inner side facing the display of the smart device; And a control unit for receiving image data of an application running on the smart device from the smart device via the communication interface and outputting an image through the cover display, wherein the cover display and the display of the smart device are powered on A cover for a smart device that transmits a live signal so as to be kept in a state of being able to be kept in a state of being closed can be provided.

According to another aspect of the present invention, there is provided a back cover comprising: a back cover having a back case mounted on a back side of a smart device in a state of a rear case, and a cover battery for supplying an interface and power for communication and power connection with the smart device; A front cover which is connected to the rear surface so as to be open / close and is provided so that a screen of the smart device is covered when the screen of the smart device is open and closed; A display installed on an inner surface of the front cover in contact with the smart device when the front cover is closed; And a controller for receiving image data from the smart device via the interface and outputting an image through the display based on the received image data, wherein the image is based on at least one of a charge amount of the cover battery and a charge amount of the battery of the smart device. And a controller for controlling power supplied from the cover battery, the battery of the smart device through the interface, and a combination of the two to supply power required for video output of the display, have.

In addition, the controller may supply power required for video output of the display from the battery of the smart device through the interface when the charge amount of the cover battery is less than a predetermined value.

In addition, the controller may supply power required for video output of the display from the battery of the smart device through the interface when the charged amount of the battery of the smart device is less than a predetermined value.

Further, the controller may supply power required for video output of the display from a battery having a larger charge amount among the cover battery and the battery of the smart device.

According to still another aspect of the present invention, there is provided a smart device including: a rear cover on which a rear surface of a smart device is mounted in a state in which the rear case is detached, and an interface for communication and power connection is provided; A front cover which is connected to the rear surface so as to be open / close and is provided so that a screen of the smart device is covered when the screen of the smart device is open and closed; A display installed on an inner surface of the front cover in contact with the smart device when the front cover is closed; A cover battery installed on the rear cover for supplying power required for operation of the display; And a controller for receiving image data from the smart device through the interface, outputting an image through the display based on the received image data, and for charging the battery of the smart device via the interface, And a controller for controlling to supply the smart device cover from the smart device.

Also, the controller may supply power for charging the battery of the smart device from the cover battery when the charging amount of the battery of the smart device is less than a predetermined value.

The controller may cause the cover battery to supply the power required for operation of the display upon activation of the display and allow the cover battery of the display to supply power required for charging the smart device upon deactivation of the display have.

Further, the smart device cover may further include a hinge sensor for detecting a closed state of the front cover, wherein the controller is configured to control the power required for the operation of the display when the front cover is in an open state And the cover battery may supply power required for charging the smart device when the front cover is closed.

According to another aspect of the present invention, there is provided a back cover comprising: a rear cover to which a rear surface of a smart device is mounted in a state that the rear case is detached, and an interface for communication and power connection is provided with the installed smart device; A front cover which is connected to the rear surface so as to be open / close and is provided so that a screen of the smart device is covered when the screen of the smart device is open and closed; A display installed on an inner surface of the front cover in contact with the smart device when the front cover is closed; A cover battery installed on the rear cover for supplying power required for operation of the display; A power port connected to an external power source and supplied with power; And an interface for receiving image data from the smart device, outputting an image through the display based on the received image data, and controlling the power supplied from the external power source through the interface according to a predetermined priority order. A smart device cover for controlling the charging of the battery of the smart device and the cover battery may be provided.

In addition, the controller may charge the battery of the smart device and the cover battery whose charge amount is low battery state first.

In addition, the controller may be configured such that the battery of the smart device is firstly charged when the battery of the smart device and the cover battery are all in a low battery state.

<Cover for smart device>

The cover 1000 for a smart device according to the present invention can house the smart device 2000 and protect it from external impact or scratches. In the following drawings, the cover is shown as a flip shape. However, it is needless to say that the smart device cover 1000 is not necessarily limited to a flip shape, but may be provided in various forms including a folder shape.

Meanwhile, the smart device 2000 refers to electronic devices that perform various multimedia functions such as browsing the Internet, listening to music, watching videos, and playing a document. The smart device 2000 may include a smart phone, a personal digital assistant (PDA), a tablet, and a convertible PC. However, in the following description and drawings, the smart device 2000 will be described for convenience, but the smart device 2000 is not limited to the smart phone in this specification.

FIG. 1 is a perspective view of a smart device cover 1000 in which a smart device 2000 is detached according to an embodiment of the present invention. FIG. 2 is a perspective view of a smart device 2000 equipped with a smart device 2000 according to an embodiment of the present invention. 3 is a plan view of a cover for a smart device according to an embodiment of the present invention in an open state, FIG. 4 is a plan view of a cover for a smart device according to an embodiment of the present invention in a closed state, Fig. 5 is a perspective view of the back surface of the smart device cover 1000 according to the embodiment of the present invention, Fig. 6 is an exploded perspective view of the back cover of the smart device cover 1000 according to the embodiment of the present invention, 8 is a block diagram of a configuration of a cover 1000 for a smart device according to an embodiment of the present invention. Referring to FIG. 8, Block diagram.

Referring to FIG. 1, a cover 1000 for a smart device may have a front cover 1200 and a rear cover 1400 basically. As shown in FIG. 1, the front cover 1200 and the rear cover 1400 may be provided in the form of a flat plate connected to each other. The front cover 1200 and the rear cover 1400 may be made of leather, plastic, or metal. The front cover 1200 and the rear cover 1400 wrap the smart device 2000 therebetween to prevent the smart device 2000 from being damaged by external impact or scratches.

As shown in FIGS. 1 and 2, the front cover 1200 and the rear cover 1400 of the smart device cover 1000 may be placed side by side, or may be opened or closed to each other.

The user can simultaneously view the display 2200 of the smart device 2000 and the main display 1600 of the cover 1000 for the smart device as shown in Figure 3, When the cover 1000 for a smart device is closed, the user can receive information through the auxiliary display 1700 of the smart device 2000 as shown in FIG.

The smart device 2000 may be fixed to the rear cover 1400. The smart device 2000 is inserted into the rear cover 1400 such that the front side of the smart device 2000 with the display 2200 of the smart device 2000 is visible as shown in FIG. As shown in FIG.

1, the smart device 2000 may be mounted on the back cover 1400 in such a manner that the back side of the smart device 2000 and the mounting portion 1420 in a state in which the back case is detached, And can be attached to the rear cover 1400 as they are engaged with each other. For example, the smart device 2000 may be inserted into the mounting portion 1420 by interference fit or the mounting portion 1420 may be provided in the form of a projection corresponding to the groove of the smart device 2000, The device 2000 may be mounted on the rear cover 1400. [

The back cover 1400 may be provided with an interface 1440 for connecting the smart device 2000 and the smart device cover 1000 to each other. The interface 1440 may be formed on the inner surface of the back cover 1400, that is, the surface of the back surface of the smart device 2000, which is in contact with the back surface of the smart device 2000, as shown in FIG. When the smart device 2000 is mounted on the rear cover 1400 as described above, the communication port of the smart device 2000, the battery port, and the like are brought into contact with the interface 1440 provided on the rear cover 1400, The device 2000 and the cover 1000 for the smart device can be connected to each other.

Specifically, the interface 1440 may include a communication interface 1442 and a power interface 1444. The communication interface 1442 is an interface for communication between the smart device 2000 and the cover 1000 for the smart device and the power interface 1444 is an interface for communication between the smart device cover 2200 and the smart device cover 1000 Lt; / RTI &gt;

For example, as shown in FIG. 7, the communication interface 1442 may receive image data of a video image to be output from the smart device 2000 through the cover displays 1600 and 1700, The detection result of the hinge sensor 1220 can be transmitted to the device 2000. It goes without saying that the communication interface 1442 can transmit and receive various information other than the above-described information.

Similarly, for example, the power interface 1444 may be used to transmit power from the cover battery 1460 of the cover 1000 for a smart device 1000 to the smart device 1000, as shown in FIG. 7, Electric power can be transmitted to the cover 1000 for the smart device.

The communication interface 1442 may be replaced with a short-range communication module that performs transmission and reception of information according to a communication scheme supported by the smart device 2000. For example, the communication interface 1442 may be a Wi-Fi communication module, a Wi-Di communication module, a Bluetooth communication module, a Zig-bee communication module, Can be replaced by. When the communication interface 1440 is replaced with a local communication module, the location of the local communication module can be freely allocated to either the rear cover 1400 or the front cover 1200. [ It is also possible that the communication interface 1440 and the short distance communication module are mounted on the cover 1000 for a smart device at the same time.

Also, a cover battery 1460 may be mounted on the rear cover 1400. The cover battery 1460 serves to supply power to the electronic components of the cover 1000 for the smart device. For example, a cover display to be described later may be supplied with power necessary for video output from the cover battery 1460.

The front cover 1200 can be in contact with and protect the display 2200 of the smart device 2000 in a closed state. The user can use the smart device 2000 by viewing or touching the display 2200 of the smart device 2000 with the front cover 1200 opened.

The front cover 1200 may be provided with a cover display. As the cover display, various means for outputting images may be used. For example, the cover display may be provided as a liquid crystal display (LCD), an organic light emitting diode (OLE) display, or various other types of video output means.

The cover display may include a primary display 1600 and a secondary display 1700. [

The main display 1600 may be installed on the inner surface of the front cover 1200, that is, the surface in contact with the smart device 2000 in a closed state, as shown in FIG. 1 or FIG. This main display 1600 may be used simultaneously or separately with the display 2200 of the smart device 2000 with the cover 1000 for the smart device open. The auxiliary display 1700 may be installed on the outer surface of the front cover 1200 as shown in FIGS.

The main display 1600 can display an image based on an image output through the self display 2200 of the smart device 2000 and can display an image similar to the display 2200 of the smart device 2000 (Size, resolution, etc.). On the other hand, the secondary display 1700 can display a simple notification message regarding the time or weather, the remaining battery power, whether or not a telephone or a message is received, and thus can be provided as a low-end display. The auxiliary display 1700 serves to increase the convenience of the user by displaying and providing basic information to the user even when the cover 1000 for the smart device is closed.

Also, the main display 1600 may be provided in the form of a touch screen integrated with the touch sensor. At this time, the user can input information by touch input through the main display 1600. [ The touch sensor may be implemented by a touch panel attached to a display panel or a piezoelectric or electrostatic touch sensor that senses a touch through a touch film or an optical touch sensor that senses a touch by an optical method.

On the other hand, the front cover 1200 may be provided with a hinge sensor 1220. The hinge sensor 1220 can sense the closed state of the cover 1000 for the smart device. Examples of the hinge sensor 1220 include a magnetic sensor, a proximity sensor, an illuminance sensor, a switch sensor, and the like. As shown in FIG. 2, the smart device 2000 is provided to cover the smart device cover 1000, for example, as shown in FIG. 2, It is recognized that the cover for smart device 1000 is closed when the cover for smart device 1000 is closed when the cover for smart device 1000 is closed when the cover for smart device 1000 is closed. It can be recognized that the smart device cover 1000 is in the open state as it moves away.

It is a general technology to those skilled in the art that a door sensor 1220 of a different type detects the closed state of the cover 1000 for a smart device, so a detailed description will be omitted.

In addition, the hinge sensor 1220 can detect whether the cover 1000 for a smart device is in a closed state or an open state, May be opened side by side or in a direction tangential to the outer surfaces of the front cover 1200 and the rear cover 1400 to be opened.

The controller 1800 controls the overall operation of the cover 1000 for the smart device. For this purpose, the controller 1800 may perform operations and processing of various information and control the operation of components of the cover 1000 for a smart device.

The controller 1800 may be implemented in a computer or similar device depending on the hardware software or a combination thereof. The controller 1800 may be provided in the form of an electronic circuit that processes an electrical signal to perform a control function, and may be provided in software form as a program for driving the above-described hardware controller 1800 . The hardware controller 1800 may be mounted on the rear cover 1400 as shown in FIG. 6, but the arrangement is not limited thereto.

In the following description, the operation of the cover 1000 for a smart device can be interpreted to be performed by the control of the controller 1800 unless otherwise specified.

Although the controller 1800 can handle the operation of the cover 1000 for the smart device alone in this specification, the controller 1800 can be operated under the control of the controller of the smart device 1000 through the communication interface 1442, It may be processed.

In the above description, the hinge sensor 1220 is provided on the front cover 1200 of the smart device cover 2000, but the position of the hinge sensor 1220 is not necessarily limited thereto. Further, the hinge sensor 1220 may be installed on the side of the smart device 2000, and the smart device cover 2000 may be provided with a device that can be recognized by the hinge sensor 1220 installed on the smart device 2000 . For example, a magnet is installed at a specific position of the front cover 1200, and the hinge sensor 1200 detects that the smart device cover 1000 is installed in the state where the smart device 2000 is mounted on the smart device cover 1000 The smart device 2000 may be disposed at a position where it senses a magnetic field generated from the magnet when it is closed.

Hereinafter, various functions implemented by the above-described smart device cover 1000 will be described. Hereinafter, in the description of various functions, unless otherwise stated, each operation is performed by being controlled by a processor mounted on the smart device 2000 or a controller 1800 of the smart device cover 1000 or a combination of the two .

<Video output operation>

The cover 1000 for a smart device can copy an image of the smart device 2000 installed therein and output the copied image through the main display 1600. Hereinafter, this will be described with reference to FIG. 9 to FIG.

FIG. 9 is a diagram showing a screen displayed by a smart device 2000 mounted on a cover 1000 for a smart device according to an embodiment of the present invention.

Referring to FIG. 9, the smart device 2000 can output an image in a state that the cover 1000 for a smart device equipped with the smart device 2000 is opened. There is no limitation to such an image. The image displayed through the display 2200 of the smart device 2000 may be a moving image, a still image, a text image, an Internet browsing image, or the like. In addition, a home screen, a lock screen, Lt; / RTI &gt;

Here, the cover 1000 for the smart device is configured such that when the display 2200 of the smart device 2000 is activated and the cover 1000 for the smart device is closed when the cover 1000 for the smart device is opened, (2200) is deactivated. More specifically, the controller 1800 transmits the detection result of the hinge sensor 1220 to the smart device 2000 through the communication interface 1440, and when the smart device 2000 receives the detection result of the hinge sensor 1220 The activation and deactivation of the display 2200 of the smart device 2000 can be controlled.

As described above, when the cover for a smart device 1000 is open and a screen is being output through the display 2200 of the smart device 2000, the user moves the cover 1000 for the smart device to close the cover Can be made. When the smart device cover 1000 is closed, the display 2200 of the smart device 2000 may be inactivated or the smart device 2000 itself may be inactivated.

When the smart device cover 1000 is opened in the closed state as described above, the smart device 2000 is opened at the time when the smart device cover 1000 is closed on the main display 1600 mounted on the smart device cover 1000, The screen displayed on the display 2200 of the display unit 2200 can be copied and output.

In other words, if the user performs the operation of closing and opening the cover for the smart device 1000, that is, the opening and closing operation, the display 2200 of the smart device 2000 is displayed on the main display 1600 of the cover 1000 for the smart device, The screen displayed on the screen is shifted.

10 is a diagram illustrating an operation of copying and outputting a screen displayed by the smart device 2000 equipped with the smart device cover 1000 according to the embodiment of the present invention. 10 shows that the screen output through the smart device 2000 is copied to the main display 1600 of the cover 1000 for the smart device.

Specifically, the controller 1800 transmits information indicating the closed state of the hinge sensor 1220 to the smart device 2000 via the communication interface 1442, and then transmits information indicating the opened state to the smart device 2000 . Accordingly, the smart device 2000 determines that the closed state and the open state have continuously occurred, and transmits the image data related to the screen output to the display 2200 at the closed time to the controller 1800 through the communication interface 1442 . The controller 1800 can output the image data to the main display 1800 when the image data is received.

Here, the copy operation of the image may or may not be performed according to the closing timing of the cover 1000 for the smart device.

For example, when the smart device cover 1000 is closed and returned to the opened state within a predetermined time, the smart device cover 1000 outputs a copy image to the main display 1600, and is opened again after a predetermined period of time If it is returned, the operation of outputting the copy image may not be performed.

On the other hand, even if the user does not perform the image copying operation after the predetermined time has elapsed after the predetermined time has elapsed, the user can perform a user input (e.g., a touch operation to the display 2200 of the main display 1600 or the smart device 2000) Or inputting a button through an arbitrary button (not shown) provided in the cover 1000 for a smart device).

Or the cover 1000 for the smart device may perform the image copy operation or perform other operations according to the closing timing. For example, in a closed state, when the camera is returned to the opened state within a predetermined time, the main image display unit 1600 outputs a copied image through the main display 1600. If the image is returned to the open state after a predetermined time, Can be output. Here, the other images include a home screen of the smart device 2000, a desktop screen, a lock screen, a screen set by another user or a manufacturer (for example, a screen of a specific web page, Execution screen).

When the copy image is output to the main display 1600, the image displayed on the display 2200 of the smart device 2000 as shown in FIG. 10 can be maintained. At this time, the same screen will be displayed on both the main display 1600 and the display 2200 of the smart device 2000.

However, it is also possible to display another image on the display 2200 of the smart device 2000 while the image displayed on the smart device 2000 is copied and displayed on the cover 1000 for the smart device.

11 is a view showing that the display 2200 of the smart device 2000 outputs a different screen when the cover 1000 for a smart device according to an embodiment of the present invention displays a copy of the screen.

Referring to FIG. 11, while the image displayed by the smart device 2000 is being displayed on the main display 1600 of the cover 1000 for the smart device, the smart device 2000 can see that the home screen is being displayed . Of course, the screen displayed on the smart device 2000 may be a desktop screen, a lock screen, or any other screen preset by the manufacturer or the user (for example, a screen of a specific web page, Application execution screen). In this case, the user can simultaneously provide a home screen, a desktop screen, or various other screens along with the displayed screen to provide a more convenient user experience.

Alternatively, the cover for the smart device 1000 may display the image displayed in the smart device 2000, and the display 2200 of the smart device 2000 may be deactivated.

12 is a diagram showing that the display 2200 of the smart device 2000 is turned off when the screen for the smart device 1000 according to the embodiment of the present invention is displayed on the screen.

12, a display image is output to the main display 1600 of the smart device cover 1000, and the display 2200 of the smart device 2000 can turn off the power. In this manner, the display 2200 of the smart device 2000 is deactivated, thereby saving the battery of the smart device 2000.

The main display 1600 is not provided as a touch screen but includes a touch object that can receive a touch input on a screen to be displayed on the main display 1600, that is, a display image in the course of performing the copy operation as described above The touch object or its corresponding object may be held on the display 2200 of the smart device 2000. [

13 is a diagram showing a display 2200 of the smart device 2000 holding a display of a touch object when a cover for a smart device 1000 according to an embodiment of the present invention displays a copy of the screen .

Referring to FIG. 9, a media player is displayed on the display 2200 of the smart device 2000 at a closed time. The image corresponding to the media player may be output to the main display 1600 as shown in FIG. At this time, the media player may include a control panel, i.e., a touch object, which receives a touch input for the operation, and the touch object may be maintained on the display 2200 of the smart device 2000. In addition, since the main display 1600 can not receive the touch input, the control panel which interferes with the video appreciation can output the excluded video.

In FIG. 13, the display panel 2200 of the smart device 2000 displays the control panel in the same form as the displayed image, but the control panel may be output in a modified form.

The user can perform a touch operation on the touch object displayed on the display 2200 of the smart device 2000 and perform an operation on the image output to the main display 1600. Specifically, the smart device 2000 receives the touch input and performs operations according to the input. The controller 1800 receives the image data according to the operation through the communication interface 1442 and performs operations through the main display 1600 Screen can be displayed.

The display 1600 of the cover 1000 for a smart device displays the image that was previously displayed at the closing time in the smart device 2000 and the same image or another image is displayed on the display 2200 of the smart device 2000 The display 2200 of the smart device 2000 is disabled or the display 2200 of the smart device 2000 is displayed on the display 2200. Whether or not to display the image on the display 2200 of the smart device 2000 is determined by the battery remaining amount of the smart device 2000 It can be selected by power supply connection or by preset setting of user or manufacturer.

In addition, it is not always necessary to output the copy image, that is, the primary display image, to the main display 1600.

FIG. 14 is a diagram illustrating an operation of displaying a screen on which the smart device cover 1000 according to the embodiment of the present invention is set in advance.

For example, instead of outputting a copy image, the main display 1600 of the cover 1000 for a smart device may display a screen set by a home screen, a desktop, a lock screen, or other user settings of the smart device 2000 A screen of a specific web page, or an execution screen of a specific application such as a music application).

14, a home screen is displayed on the display 1600 of the smart device 2000 when the closing operation is performed, while the display 2200 of the smart device 2000 can display the image that is displayed at the closing time have.

Hereinafter, a control method of the smart device cover 1000 according to the present invention for the image copy operation will be described with reference to FIG. 15 is a flowchart of an example of a control method of the cover 1000 for a smart device according to the embodiment of the present invention. Herein, the control method of the smart device cover 1000 may be performed by the cover 1000 for a smart device according to the embodiment of the present invention described above. If there is no mention below, the controller 1800 or the smart device It can be interpreted that it is performed according to the control by the controller of the controller 2000.

Referring to FIG. 15, a method of controlling a smart device cover 1000 according to the present invention includes a step S110 of detecting a closed state of the front cover 1200, a step S110 of detecting a closed state of the front cover 1200, (S130) of receiving image data from the smart device 2000 when it is opened within a predetermined time (S130), and outputting the image based on the image data Step S140. Hereinafter, each of the above-described steps will be described in detail.

First, the smart device cover 1000 can detect the open state of the front cover 1200 (S110). Opening of the front cover 1200 may be sensed by the hinged sensor 1220.

According to the detection result, it is determined whether the front cover 1200 is opened within a predetermined time after the front cover 1200 is closed (S120). This determination may be performed by the controller 1800 or by the smart device 2000.

The controller 1800 can receive the image data from the smart device 2000 through the communication interface 1440 in operation S130. The received image data is data related to the image that was previously displayed at the time when the smart device 2000 was closed according to the above-described examples of the operation, or the other image data to be displayed through the main display 1600 of the other smart device cover 1000 And may be data for displaying an image.

When the image data is received, the main display 1600 of the cover 1000 for the smart device can output images. The controller 1800 may configure a screen to be displayed on the display 1600 based on the received image data.

When the primary display 1600 displays the primary display 1600, the smart device 2000 disables the display 2200 of the smart device 2000, disables the display device 2200 of the smart device 2000, It is possible to display the same image as the image displayed on the display 1600 of the cover 1000 for the smart device.

After the above operation is completed, if the display 1600 of the cover 1000 for a smart device is provided as a touch display, the user can perform touch input through the display 1600 of the cover 1000 for the smart device . For example, in a state in which a screen as shown in FIG. 14 is displayed, the user can touch a call button (an icon at the lower left corner of the display 1600 in FIG. 14) displayed on the display 1600. If there is such a touch input, the controller 1800 transmits the touch input to the smart device 2000 via the communication interface 1442, and the smart device 2000 can perform appropriate operations as the corresponding icon is selected. If the screen displayed on the main display 1600 should be changed as the operation is performed, the controller 1800 receives the image data for composing the changed screen from the smart device 2000 through the communication interface 1442 The screen displayed on the display 1600 can be changed.

<Message output operation>

Hereinafter, an operation of outputting a message according to a notification event generated in the smart device 2000 equipped with the smart device cover 1000 according to the embodiment of the present invention to the cover displays 1600 and 1700 will be described.

Referring again to FIG. 9, in FIG. 9, a moving picture player is being displayed by the smart device 2000. When a notification event occurs in this state, a message related to the notification event has been displayed on the display 2200 of the smart device 2000 in a pop-up format or the like. In this case, there is a problem that the user is visually disturbed by a pop-up window of a notification event occurring while executing an application such as a movie appreciation, a web browsing, or a game.

Here, the notification event includes a call reception, a text reception, a reception of a messenger application call, an update application reception of an installed application, a reception of various push messages, an arrival of an alarm time, an advertisement reception, It should be interpreted as a comprehensive concept covering all kinds of events.

The smart device cover 1000 can prevent a message corresponding to a notification event from occurring as a visual disturbing factor to the user as described above. Specifically, by outputting a message related to the notification event to the cover display of the cover 1000 for the smart device, the user may not be disturbed by the application running in the smart device 2000. [ In this case, the user can check the message through the cover displays 1600 and 1700 of the cover 1000 for the smart device, but it is advantageous not to be hindered from using the application running in the smart device 2000.

Of course, a message according to all the notification events is not necessarily displayed through the cover display, and a message output through the cover display can be performed only when the application visually interferes with an application running in the smart device 2000 .

The disturbance may be a case where the generated notification event is not related to the application currently being displayed on the smart device 2000. For example, when a current messenger application is chatting with the other party and the other party sends a chat through the instant messenger application and a notification event occurs, the message for the notification event is directly displayed on the smart device 2000, It is not necessary to unnecessarily display it on the cover display.

Also, the case where the application is displayed in the smart device 2000 may be a case where the use of the application temporarily becomes uncomfortable due to a pop-up window or the like when the application currently providing information visually is provided. Applications that provide visual information may include image viewers, video players, web browsing applications, text viewers, explorer applications, market applications, gaming applications, and the like. Hereinafter, such an application will be referred to as a main application.

16 to 18 are diagrams illustrating a message output operation related to a notification event of the cover 1000 for a smart device according to the embodiment of the present invention.

9, when a notification event occurs while the main application is being output through the display 2200 of the smart device 2000, a message relating to the notification event is sent to the smart device 2000 instead of the display 2200 of the smart device 2000 To the main display 1600 of the display device 1000.

For example, referring to FIG. 16, when an event occurs in which a text message or a messenger application chat message is received when a video player, which is a main application, is running on the display 2200 in the smart device 2000, 1600). &Lt; / RTI &gt;

17, when a notification event related to an update of an application installed in the smart device 2000 occurs when a video player, which is a main application, is running through the display 2200 of the smart device 2000, The primary display 1600 may display a message on this instead. If the update event is an application currently being output to the display 2200 of the smart device 2000 (the video player in the case of FIG. 17), it is also possible to selectively output this message to the display 2200.

18, if a call is received when a moving picture is being viewed through the display 2200 of the smart device 2000, the main display 1600 displays a message relating to the reception of the call instead can do.

However, unlike the other notification events, since the importance of the call reception may be significant, a message related to the reception may be displayed on the display 2200 of the smart device 2000. More specifically, if the caller of the incoming call is listed in the phone book of the smart device 2000 in categories such as a favorite, a major person or a business related person, the corresponding message is selectively displayed on the display 2200 of the smart device 2000, Can be displayed.

The operation of outputting the notification message to the main display 1600 can be processed by the controller of the smart device 2000 or the controller of the smart device cover 1000.

16, although the smart device 2000 outputs the main application, the corresponding message may be displayed on the smart device 2000 side display 2200 in some cases.

FIG. 19 is a diagram of an operation when an application related to a notification event is being executed in the smart device 2000 according to the embodiment of the present invention.

Referring to FIG. 19, a chat application is running on the display 2200 of the smart device 2000. At this time, when a notification event according to the chat application (reception of a chat message according to the pushing of the chat application in FIG. 19) occurs, a message related to a token message reception event can be outputted on the display 2200, instead of the main display 1600 have. Specifically, the smart device 2000 determines whether the event is related to the application being output when the event occurs. If the event is a related event, the smart device 2000 transmits the event related message to the smart device cover 1000, 1600 to output it through the display 2200 directly.

Meanwhile, when the notification message is output through the main display 1600 as described with reference to FIGS. 16 to 18, when the main display 1600 can receive the touch input, if a touch input regarding the notification message occurs, The display 1600 can execute an application linked to the message.

20 is a diagram illustrating an execution operation of an application linked to a message related to a notification event according to an embodiment of the present invention.

Referring to FIG. 20, when a chat message reception event for a chat application is generated and a message related thereto is output to the main display 1600 as shown in FIG. 16, when a user touches a message pop-up, As shown in FIG.

Specifically, the controller 1800 transmits a touch input to the smart device 2000 through the communication interface 1442. The smart device 2000 executes an application related to the notification message according to the touch input, And then transmitted to the cover 1000 for the smart device through the communication interface 1442 again. The controller 1800 can display an associated application on the main display 1600 using the screen information.

When the application linked to the notification message is displayed on the main display 1600, the user can respond to the notification message without being visually disturbed to the main application which has been executed in the display 2200 of the smart device 2000 .

In the above description, the operation of outputting the notification message through the main display 1600 instead of the display 2200 of the smart device 2000 and processing the notification message has been described. Alternatively, if the main display 1600 is running main applications (e.g., an image viewing application), a notification message may be displayed on the display 2200 of the smart device 2000 itself. In this case, since the main application is being output to the main display 1600, it is more advantageous for the user to output the notification message from the smart device 2000 side.

21 and 22 are diagrams illustrating an example of an operation of outputting a notification message through the display 2200 of the smart device 2000 according to the embodiment of the present invention.

Referring to FIG. 21, a main application is running through the main display 1600 of the front cover 1200. The main application is not executed on the display 2200 of the smart device 2000 (the home screen of the smart device 2000 is displayed on the display 2200 of the smart device 2000 in Fig. 21).

Referring to FIG. 22, when a notification event occurs in the situation shown in FIG. 21, a message related to the event in this situation can be output to the display device 2200 of the smart device 2000.

The controller 1800 or the smart device 2000 of the smart device cover 1000 determines whether the main application is being output to the main display 1600 or the display 2200, A message related to the notification event can be output to the side which is not being executed.

If both of the displays 1600 and 2200 are running a main application, it is possible to determine which display 1600 or 2200 to output a message according to various conditions.

For example, the priority order of each main application may be stored in the smart device 2000 or the smart device cover 2200. For example, a game application may be ranked first, and a chat application may be ranked second. At this time, if the game application is displayed on the main display 1600 and the chat application is being executed on the display 2200 of the smart device 2000, the priority is determined between the two applications when an event occurs, A message can be output to the display 2200 on the side of the smart device 2000 which is a display on the side where the application is running.

As another example, either application running in the foreground or application receiving the last user input may be prioritized. For example, for example, if the game application is being displayed on the main display 1600, the chat application is being displayed on the display 2200 of the smart device 2000, and the input of the most recent user is a chat message When a notification event is generated in the case of input, the game application can prioritize the chat application and output the message to the main display 1600 side that is being displayed by the game application.

Or both, may simply output the message to a predetermined one of the main display 1600 or the display 2200 when the main application is running.

On the other hand, when the main display 1600 can not receive the touch input by the simple display means other than the touch display, it may be inconvenient to display the notification event on the main display 1600. [

9, a call incoming event may occur when the main application is running through the display 2200 of the smart device 2000. [ When a phone call incoming event occurs, there are cases where it is possible to generally input whether or not to receive a call, whether to send a text message to the caller of the call, or the like.

18, when there is no problem in the case where the main display 1600 has a touch interface but in the case of a simple display means in which the touch input is not received, Can cause discomfort to the user.

23 is a diagram illustrating a screen switching operation according to a notification event according to an embodiment of the present invention.

23, a message relating to the incoming event is output to the display of the smart device 2000 instead of the main display 1600, and instead, the output of the main application, which is being output from the original smart device 2000, (1600) can substitute. Thus, the user can still perform user input processing on a message relating to an event that has occurred while still using the main application (for example, watching a moving picture in Fig. 23).

The output of the main application may be returned to the display 2200 of the smart device 2000 again if the notification event is terminated (e.g., if the call is rejected or the call is received). Of course, if necessary, the main display 1600 may maintain the output of the main application that has been moved according to the occurrence of an event.

The operation of outputting the notification message and outputting the related application screen through the main display 1600 of the smart device cover 1000 or the display 2200 of the smart device 2000 itself has been described above. According to the present invention, it is also possible to output a notification message via the auxiliary display 1700. [

FIG. 24 is a view of the auxiliary display 1700 of the cover 1000 for a smart device according to the embodiment of the present invention, and FIG. 25 is a side view of the auxiliary display 1700 of the cover 1000 for a smart device according to an embodiment of the present invention. In which a notification message is output.

Simple information such as that shown in Fig. 24 can be displayed on the auxiliary display 1700 at normal times. The simple information may be, for example, time information, weather information, battery power, and the like.

However, since the display 2200 or the main display 1600 of the smart device 2000 can not be viewed by the user when the smart device cover 1000 is closed and a notification event occurs, Can be output through the display 1700.

For example, the controller 1800 communicates the open status of the cover 1000 for the smart device to the smart device 2000 via the communication interface 1442 via the hinge sensor 1220. [ When it is determined that the smart device 2000 is closed, the smart device 2000 transmits a message related to the notification event to the smart device cover 1000, and the controller 1800 can output the message to the auxiliary display 1700. At this time, the smart device 2000 transmits a command to the smart device cover 1000 to output a notification message to the auxiliary display 1700, and the controller 1800 can accordingly output the message to the auxiliary display 1700 . Alternatively, the controller 1800 may determine the closed state by itself when the message is received, and may output the message to the main display 1600 when it is open, and to the auxiliary display 1700 when the message is closed.

Referring to FIG. 25, when the smart device cover 1000 is in the closed state, when the telephone is received, the auxiliary display 1700 can output a notification message regarding whether or not the telephone is received.

If the door sensor 1220 is more elaborate, a display for outputting a message in consideration of the closed state of the smart device cover 1000 according to the door sensor 1220, even when the door for the smart device 1000 is open, You can decide.

For example, the hinge sensor 1220 can detect the degree of opening when the cover 1000 for a smart device is in the open state, in addition to whether it is open or closed. Specifically, when the door sensor is in the open state, it is determined whether the display of the main display 1600 and the display of the smart device 2000 are opened in detail or the outer surface of the front cover 1200 is in contact with the outer surface of the rear cover 1400 So that it can be detected whether it is open or not.

If the smart device cover 2000 is arranged side by side, the smart device cover 2000 can perform operations according to the description with reference to FIG. 16 to FIG. However, if it is in the closed state, the user can not see either the display 2200 of the smart device 2000 or the main display 1600. [ If the user can not see the main display 1600, a notification message is displayed on the smart device 2000 side display even though the main application is outputting through the display 2200. [ On the other hand, if only the main display 1600 is visible, the main display 1600 outputs a notification message to the main display 1600 even if the main application is outputting the main display 1600 as shown in FIG. In this case, which side of the two displays the user is using is determined by using the gravity sensor built in the smart device 2000 or the smart device 2000 or the controller 1800).

Similarly, if any of the two displays 1600 and 2200 should output a notification message in the inactive state, the notification message will be output through the active display.

The above-described operations, functions, and judgments may be determined by the cover 1000 for a smart device, but the smart device 2000 may determine the need for the controller 1800 of the cover 1000 for the smart device Or may be operated in a controlled manner.

Hereinafter, a control method of the smart device cover 1000 according to the present invention will be described with reference to FIG.

26 is a flowchart of another embodiment of a control method for the smart device cover 1000 according to the embodiment of the present invention. Here, the control method of the smart device cover 1000 may be performed by the smart device cover 1000 according to the embodiment of the present invention, and in the following description, unless otherwise stated, control by the controller 1800 As shown in FIG.

Referring to FIG. 26, a control method for a smart device cover 1000 according to the present invention includes a step S210 of recognizing occurrence of a notification event, a step S220 of determining an application relevance of a notification event, (S230), determining display display (S240), and outputting a notification event related message (S250). Hereinafter, each of the above-described steps will be described in detail.

First, a notification event may occur in the smart device 2000 (S210). The notification event includes a notification event, a call reception, a text reception, a reception of a messenger application call, an update application reception of an installed application, various push message reception, an alarm time arrival or advertisement reception, a low battery state entry, In addition, a pop-up message should be interpreted as a comprehensive concept covering all the various events that are displayed on the screen.

When such a notification event occurs, the smart device 2000 can recognize the occurrence of the notification event. Also, the controller 1800 can confirm the information about the occurrence of the notification event through the communication interface 1442 by the smart device 2000.

Next, the application relevancy can be determined (S220). The smart device 2000 can determine the application currently being displayed on the main display 1600 or the self display 2200 of the smart device 2000 and determine whether the generated event is an event by the application.

If the event is related to the application being displayed, the event is displayed on the display 1600,2200 with a message related to the event. If the message output is via the main display 1600, the controller 1800 can receive the message via the communication interface 1442 and output it to the main display 1600.

Next, if the event is not related to the application being displayed, it may be determined whether the currently displayed application corresponds to the main application (S230). This determination may be performed by the controller 1800 or the smart device 2000. [ The main applications include image viewer, video player, web browsing application, text viewer, explorer application, market application and game application. In addition, a message about alarm event is displayed while the application is displayed, Lt; RTI ID = 0.0 &gt; and / or &lt; / RTI &gt; The main application can be preset by the user, the manufacturer, or the software distributor. Also, at this time, it is possible to grasp which of the main display 1600 and the display 2200 of the smart device 2000 outputs the main application. This operation can also be performed by the smart device 2000 or the controller 1800. [

Next, based on the judgment of the main application, it is possible to determine to which display the message is to be output (S240).

Basically, the main display 1600 and the display 2200 of the smart device 2000 can determine a display for outputting a message to a display on which the main application is not being displayed.

In addition, the display to output the message can be determined by further considering the closed state. More specifically, the controller 1800 transmits the detection result of the hinge sensor 1220 to the smart device 2000 through the communication interface 1442, and the smart device 2000 determines the output . Or the controller 1800 may determine which display to be the output display depending on the state of the hinge sensor 1220 by itself. In particular, when it is desired to output a message to the cover display, the controller 1800 can determine which of the main display 1600 and the auxiliary display 1700 is the output display. At this time, determination as to whether to output to the cover display may be made on the smart device 2000 side in advance.

For example, if it is detected by the hinge sensor 1220 that the cover 1000 for a smart device is in a closed state, the auxiliary display 1700 can be determined as an output display.

For example, when the cover 1000 for a smart device is opened by the hinge sensor 1200, the main display 1600 and the display 2200 of the smart device 2000, The output display can be determined by the display.

For example, if the state of the main display 1600 and the smart device 2000 are different from each other, it may be possible to distinguish the closed state of the door sensor 1220 from the open state and the closed state, The output display can be determined by the display of the side of the display 2200 currently being viewed by the user. Of course, it is also possible to arbitrarily decide output display to the smart device 2000 side display 2200 only when the device is in the disconnected state.

In addition, the output display may be determined further considering whether the displays are inactivated / activated. In this case, the message output display can be determined to the activated display side instead of the deactivated display.

When a message to output a message is determined, a message is output to the corresponding display (S250). At this time, if the output display is determined to be one of the cover displays, the controller 1800 may receive information about the message from the smart device 2000 via the communication interface 1442 and cause it to be output by the cover displays 1600 and 1700 . Accordingly, the user can check and process the notification message without inconvenience of using the application being displayed.

The above steps S210 and S220 may be reversed. In step S240, it is also possible to determine whether a further closing operation is to be performed, and to determine whether the display is on / off.

The notification message can now be output via the selected display.

<Display on / off operation>

Hereinafter, the on / off management operation of the main display 1600 of the cover 1000 for a smart device according to the embodiment of the present invention will be described.

In general, smart devices (2000) have to limit the battery capacity because they have to be as light as possible for portability. Accordingly, various methods for saving power have been proposed in order to increase the usage time of the smart device 2000 with a limited battery capacity. In particular, since the smart device 2000 has the largest power consumption in the display 2200, if the user does not input a user for a preset waiting time, the smart device 2000 is regarded as being not used by the user, 2200) is forcibly turned off is widely used.

In the case of using the smart device cover 1000, the user mainly closes the front cover 1200 when the smart device 2000 is not used. Therefore, if the smart device cover 1000 is opened The user considers that the smart device 2000 is used regardless of the waiting time for power off preset in the smart device 2000 and the display 2200 of the smart device 2000 and the main display are turned off It may be advantageous not to.

For this, the controller 1800 or the smart device 2000 performs a determination as to whether the cover 1000 for the smart device is open, according to the detection result of the hinge sensor 1220.

FIG. 27 is a diagram illustrating an operation of turning off the display 2200 and the cover display 1600 of the smart device 2000 according to the embodiment of the present invention.

27, when an application running on the smart device 2000 is output through the display 2200 of the smart device 2000 and the main display 1600 mounted on the smart device cover 1000, It is possible to turn off the power of the displays 1600 and 2200 when there is no user input during the same waiting time on the display 2200 of the device 2000 and the main display 1600. [

However, the same waiting time may be a standby time (long or short waiting time) different from the time previously set by the setting of the smart device 2000. [ For example, the waiting time for power-off of the display 2200 may be set to 3 minutes in the smart device 2000 itself. The standby time of the smart device 2000 may be set to 3 minutes, May be set to a standby time such that the power is turned off after 10 minutes.

Specifically, the cover 1000 for a smart device can be set to have a standby time longer than the standby time according to the settings of the smart device 2000 when the front cover 1200 is opened. The controller 1800 may transmit the waiting time to the smart device 2000 to change the standby time of the smart device 2000 to the standby time set in the smart device cover 1000. [ Or the controller 1800 may transmit a live signal for a predetermined time set in the cover 1000 for the smart device. Here, the live signal may be a dummy user input in which the smart device 2000 recognizes that a user input has occurred. The live signal can also be periodically transmitted as needed. The smart device 2000 receiving the live signal can prevent the power of the displays 1600 and 2200 from being turned off while the corresponding signal is received.

Fig. 28 is a diagram for an operation in which the display 2200 and the cover display 1600 of the smart device 2000 according to the embodiment of the present invention are kept powered on.

In addition, the smart device cover 1000 may not have a standby time. 28, the power of the main display 1600 of the cover 1000 for the smart device and the display 2200 of the smart device 2000 can be kept on continuously without any restriction on the waiting time have.

Specifically, the controller 1800 may continuously transmit a live signal to the smart device 2000, or the controller 1800 may transmit a signal to the smart device 2000 that changes the standby time setting to unlimited.

27, the display 2200 of the smart device 2000 and the main display 1600 of the smart device cover 1000 are turned on and off according to the same waiting time. 1600 and the display 2200 of the smart device 2000 can be managed according to different waiting times.

 29 is a diagram of an operation of turning off the display 2200 of the smart device 2000 and keeping the power of the cover display 1600 in an on state according to the embodiment of the present invention.

Referring to FIG. 29, the main display 1600 of the cover 1000 for a smart device can be kept on longer than the self display 2200 of the smart device 2000. In other words, the main display 1600 remains on after the display 2200 of the smart device 2000 is turned off, or has a longer wait time after the display 2200 of the smart device 2000 is turned off, Can be turned off. Of course, conversely, with a shorter wait time, it may also be possible that the main display 1600 is turned off before the standby time of the display 2200 of the smart device 2000 is turned off.

Specifically, the display 2200 of the smart device 2000 is determined to be on / off according to the standby time set in the smart device 2000, and the main display 1600 displays the standby time set in the cover 1000 for the smart device On / off can be determined accordingly. At this time, the controller 1800 transmits the waiting time related to the main display 1600 to the smart device 2000 so that the smart device 2000 sets the waiting time of the main display 1600 accordingly, The power of the main display 1600 can be controlled based on the on / off control signal of the display 1600. [

Alternatively, the controller 1800 may be configured to have a standby time different from that of the smart device 2000, as it prevents the main display 1600 from being turned off in the form of sending a live signal during the standby time for the main display 1600. The live signal at this time may be related to the main display 1600 only.

Although the smart device cover 1000 has been described with respect to the display power control operation, the smart device cover 1000 may have a closed state, an open state, or an untied state. In the present invention, The power of the displays 1600 and 2200 may be controlled in different ways depending on each state.

30 is a view showing a closed state of the cover 1000 for a smart device according to the embodiment of the present invention.

Referring to FIG. 30, the smart device cover 1000 is closed, the smart device cover 1000 is opened, and the smart device cover 1000 is detached from the left side. Each of these states can be sensed by the open sensor 1220.

Here, the defeated state can be further divided into the case where the smart device 2000 faces the user side (the lower right side of FIG. 30) and the case where the smart device cover 1000 faces the user side (the upper right side of FIG. 30) . The state of the defective state can be determined by the sensor of the smart device 2000. For example, when the brightness sensor of the smart device 2000 is equal to or greater than a predetermined value, it is determined that the smart device 2000 is directed to the user. On the other hand, 1600) is directed to the user. Or the smart device 2000 and the smart device 2000 may determine that the display 1600 or 2000 is directed to the user.

For example, the smart device cover 1000 can immediately turn off the main display 1600 when the front cover 1200 is closed. If the smart device cover 1000 is in a detached state, the power of the main display 1600 can be turned off after a predetermined time. When the main display 1600 is in the open state, the main display 1600 can be kept powered on.

Here, when the front cover 1200 is closed, the power of the main display 16000 may be turned off while the display 2200 of the smart device 2000 is turned off. Specifically, the smart device cover 1000 transmits a closed state to the smart device 2000, and accordingly, the smart device 1000 can turn off the power of the two displays 1600 and 2200. At this time, the smart device 2000 may turn off the main display 1600 by not transmitting the image data to the smart device cover 2000 or transmitting an off signal.

Here, when the front cover 1200 is in an open state, the main display 1600 may be kept powered on with the display 2200 of the smart device 2000. On the other hand, in the open state, the display 2200 of the smart device 2000 and the main display 1600 may be turned off at different times. For example, the display 2200 of the smart device 2000 is turned off when the first predetermined time elapses, and the main display 1600 of the cover 1000 for the smart device is turned off after a second predetermined time has elapsed . Here, the second predetermined time may be different from the first predetermined time. Also, the second predetermined time may be set to infinity so that the main display 1600 may be kept powered on.

When the front cover 1600 is in the closed state, either the display of the smart device or the cover display may be powered off and the other one may remain powered on. At this time, the display which the user is using among the two displays 1600 and 2200 can be kept on.

Specifically, the controller 1800 transmits information about the closed state to the smart device 2000 via the communication interface 1442, and the smart device 2000 controls the front cover 1200 according to the received information, The display 2200 of the smart device 2000 determines the display being used by the user among the two displays 1600 and 2200 based on the detection result of the brightness sensor of the smart device 2000 And may transmit the off signal of the main display 1600 to the controller 1800 via the communication interface 1442 when in use. Alternatively, the display being used by the user may be determined as the display 2200 of the smart device 2000 and the display of the main display 1600 that has finally received the user's touch.

<Power Supply Operation>

It has been described that the smart device cover 1000 may be provided with a cover battery 1460 separate from the battery of the smart device 2000. Hereinafter, a power supply operation performed simultaneously or separately with respect to the battery of the smart device 2000 and the cover battery 1460 of the cover 1000 for the smart device will be described.

Basically, a power source necessary for operation of each component, including the main display 1600 of the cover 1000 for a smart device, can be supplied from the cover battery 1460. The power required for operation of the smart device 2000 may be supplied by the battery of the smart device 2000. In detail, in the cover 1000 for the smart device, the cover battery 1460 is used for the operation of the main display 1600, but the operation of the other components may also be supplied with power from the battery of the smart device 2000 have. Other components, except for the main display 1600, are not power consuming and the smart device cover 1000 may not be in the wakeup state, while the smart device 2000 is mostly in the wakeup state, 1800 and the communication interface 1442 may be advantageous to use the battery of the smart device 2000 side.

In addition, the power required for video output of the main display 1600 is not only supplied to the cover battery 1460 but also to the components of the smart device 2000 itself, including the main display 1600, Can supply. Or the own battery of the smart device 2000 can supply power completely on behalf of the cover battery 1460.

Specifically, the battery 1800 determines whether the battery 1800 is to be supplied with power from the battery of the smart device 2000 through the power interface 1444 when the controller 1800 determines that the amount of charge of the cover battery 1600 is less than a predetermined value. It is possible to supply the power required for video output of the video processor 1600. Conversely, when the voltage is equal to or greater than a predetermined value, the power required for the main display 1600 can be supplied from the cover battery 1460.

Or the controller 1800 may supply the power necessary for video output of the main display 1600 from the battery of the cover battery 1460 and the battery of the smart device 2000 having a larger charge amount.

The controller 1800 transmits the charge amount of the cover battery 1460 to the smart device 2000 through the communication interface 1442. The smart device 2000 transmits the charge amount of the cover battery 1460, When the charge amount of the self-battery is higher than the charge amount, the power can be supplied to the smart device cover 1000 through the power interface 1444. [

Through this process, the power required for the cover 1000 for the smart device can be transmitted from the smart device 2000.

On the other hand, the power required for the operation of the smart device 2000 can be electrolyzed from the cover battery 1460 of the cover 1000 for the smart device. For example, when the amount of charge of the cover battery 1460 among the self battery of the smart device 2000 and the cover battery 1460 is higher, the smart device 2000 receives the power interface 1444 from the cover 1000 for the smart device And can be used to receive electricity.

<Power charging operation>

The charging operation of the cover battery 1460 and the battery of the smart device 2000 will be described below.

Basically, the charging of the smart device 2000 can be performed using the charging port of the smart device 2000 itself, or the charging can be performed through the charging port 1480 of the cover 1000 for the smart device. The smart device 2000 is charged through the power interface 1444 of the cover 1000 for the smart device when charging port 1480 is connected.

The charging of the cover 1000 for the smart device may be performed through the charging port 1480 of the cover 1000 for the smart device or through the charging port of the smart device 2000. [ In the case of passing through the smart device 2000, charging can be performed via the power interface 1444. [

When power is connected to the charging port 1480, the battery of the smart device 2000 and the cover battery 1460 can be charged. At this time, it may be a problem to determine which battery to charge first.

For example, a battery having a low charge amount can be charged first, and a battery having a high charge amount can be charged later. Specifically, if there is a fully charged battery, the other battery can be charged first. Or if there is a battery that is either full or low battery, it can be charged first.

On the other hand, when there is no external power source, the power of the cover battery 1460 can be used for charging the battery of the smart device 2000. At this time, when the main display 1600 is inactivated due to a power distribution problem, the cover battery 1460 is used for charging the battery of the smart device 2000 through the power interface 1444, Since the battery 1460 supplies power to the main display 1600, it may not transmit power to the smart device 2000 side.

Here, the controller 1800 allows the cover battery 1460 to supply the power required for the operation of the main display 1600 when the front cover 1200 is open, and when the front cover 1200 is closed So that the cover battery 1460 supplies the power required for charging the battery of the smart device 2000.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments of the present invention described above can be implemented separately or in combination.

Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

1000: cover
1200: Front cover
1220: Hinged sensor
1400: Rear cover
1420:
1440: Communication communication interface
1600: Display
1800: Controller
2000: Smart devices
2200: Display of smart device

Claims (11)

A back cover having a rear surface mounted with a rear surface of the smart device in a rear case, and a cover battery provided with an interface and power for communication and power connection with the installed smart device;
A front cover which is connected to the rear surface so as to be open / close and is provided so that a screen of the smart device is covered when the screen of the smart device is open and closed;
A display installed on an inner surface of the front cover in contact with the smart device when the front cover is closed; And
And a controller for receiving image data from the smart device through the interface and outputting an image through the display based on the received image data, wherein the image is based on at least one of a charge amount of the cover battery and a charge amount of the battery of the smart device And a controller for controlling power supplied to the display from the cover battery, the battery of the smart device through the interface, and a combination of the two,
Cover for smart devices.
The method according to claim 1,
Wherein the controller is configured to supply power required for video output of the display from the battery of the smart device through the interface when the amount of charge of the cover battery is less than a predetermined value
Cover for smart devices.
The method according to claim 1,
Wherein the controller is configured to supply power required for video output of the display from the battery of the smart device through the interface when the charged amount of the battery of the smart device is less than a predetermined value
Cover for smart devices.
The method according to claim 1,
Wherein the controller is configured to supply power required for video output of the display from a battery having a larger charge amount among the cover battery and the battery of the smart device
Cover for smart devices.
A rear cover to which a rear surface of the smart device is mounted in a state in which the rear case is detached, and an interface for communication and power connection is provided with the installed smart device;
A front cover which is connected to the rear surface so as to be open / close and is provided so that a screen of the smart device is covered when the screen of the smart device is open and closed;
A display installed on an inner surface of the front cover in contact with the smart device when the front cover is closed;
A cover battery installed on the rear cover for supplying power required for operation of the display; And
Receiving an image data from the smart device via the interface, outputting an image through the display based on the received image data, and receiving power for charging the battery of the smart device via the interface from the cover battery And a controller
Cover for smart devices.
6. The method of claim 5,
Wherein the controller is configured to supply power for charging the battery of the smart device from the cover battery when the charged amount of the battery of the smart device is less than a predetermined value
Cover for smart devices.
6. The method of claim 5,
Wherein the controller causes the cover battery to supply power necessary for operation of the display upon activation of the display and to cause the cover battery of the display to supply power required for charging the smart device upon deactivation of the display
Cover for smart devices.
6. The method of claim 5,
The smart device cover may further include a hinge sensor for sensing a closed state of the front cover,
Wherein the controller is configured to allow the cover battery to supply power required for operation of the display when the front cover is in an open state and to allow the cover battery to supply power required for charging the smart device when the front cover is closed To make
Cover for smart devices.
A rear cover to which a rear surface of the smart device is mounted in a state in which the rear case is detached, and an interface for communication and power connection is provided with the installed smart device;
A front cover which is connected to the rear surface so as to be open / close and is provided so that a screen of the smart device is covered when the screen of the smart device is open and closed;
A display installed on an inner surface of the front cover in contact with the smart device when the front cover is closed;
A cover battery installed on the rear cover for supplying power required for operation of the display;
A power port connected to an external power source and supplied with power; And
The smart device receives image data from the smart device via the interface, outputs an image through the display based on the received image data, and controls power supplied from the external power source to the smart To charge the battery of the apparatus and the cover battery
Cover for smart devices.
10. The method of claim 9,
Wherein the controller is configured to first charge the battery of the smart device and the cover battery whose charge amount is the low battery state
Cover for smart devices.
11. The method of claim 10,
The controller causes the battery of the smart device to be firstly charged when the battery of the smart device and the cover battery are all in a low battery state
Cover for smart devices.

Images