KR20080007054A - Electronic device for providing 3d-ui and the same method - Google Patents

Abstract

An electronic device for providing a 3D(Dimensional) GUI(Graphic User Interface) and a method thereof are provided to enable a user to manipulate a menu efficiently and offer menu manipulation customized to propensity of the user by providing the 3D GUI in which a plurality of layers are independently moved. A GUI part(120) includes a device layer representing device information with at least one side of a first polygonal column and a contents layer representing contents information with at least one side of a second polygonal column. A controller(130) controls a GUI generation operation of the GUI part. The contents layer represents a kind of at least one of photo, movie, MP3(MPEG(Moving Picture Experts Group) layer), and text contents. The device layer represents a storage medium storing at least one of the photo, movie, MP3, and text contents. A task layer represents task information with at least one side of a third polygonal column. The task layer includes at least one contents tasking function of performing a slide show, burning a CD(Compact Disk), and making a new folder.

Description

Electronic device for providing a three-dimensional user interface and a method thereof

1 is a block diagram of an electronic device according to an embodiment of the present invention;

2 is a diagram illustrating a configuration of a 3D-GUI according to an embodiment of the present invention;

3 is a view for explaining an example of a 3D-GUI according to a case where a menu operation is focused on a function of a content layer in an electronic device according to the present invention;

 4 is a view for explaining an example of a 3D-GUI according to a case where a menu operation is focused on a function of a task layer in an electronic device according to the present invention;

5 is a view for explaining an example of a 3D-GUI according to a case where a menu operation is focused on a function of a device layer in an electronic device according to the present invention;

6 is a view for explaining another embodiment of a user interface according to the present invention; and

FIG. 7 is a diagram for describing a 2D-GUI supporting multitasking provided according to another embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

100: electronic device 110: operation unit

120: GUI unit 130: control unit

140: display unit

The present invention relates to an electronic device, and more particularly, to an electronic device for providing a user interface in three dimensions.

The UI (User Interface) refers to a means by which an electronic device and a user can interact. That is, the user refers to a means for transmitting a user command to the electronic device. Representative examples of the UI may include a physical user interface (PUI) and a graphical user interface (GUI).

PUI refers to a means for inputting a user command in a physical method such as a keyboard, an operation button, a touch pad, and the like, and GUI refers to a means for inputting a user command by selecting an icon or a menu displayed on a display.

PUI is also necessary when entering a user command using the GUI. This is because, in the GUI where the user moves the pointer (cursor) while referring to a menu, list, icon, etc. displayed on the display, and selects the item on which the pointer is located, the moving command and the selection command are possible only through the PUI.

Meanwhile, in an electronic device such as a personal computer, a plurality of external devices such as a digital camera, an MP3 player, a printer, a mobile phone, a USB device, and the like can be connected. Accordingly, users' demand for convenient menu operation with a plurality of external devices connected to the electronic device is increasing.

However, since the GUI provided in the conventional electronic device is set to sequentially access desired data according to a predetermined menu group, the menu operation is inconvenient when the electronic device accesses data stored in a plurality of external devices.

In addition, the GUI provided in the conventional electronic device does not consider personal menu manipulation tendency according to the user. Accordingly, a user interface considering the user's disposition is required.

The present invention has been made to solve the above problems, an object of the present invention, easy to access data stored in a plurality of connected external devices, and provides a three-dimensional personalized menu in consideration of the user's disposition The present invention provides an electronic device supporting a GUI.

An electronic device according to the present invention for achieving the above object, by using at least one of the sides of the first polygonal pillar and the device layer indicating the device information and at least one of the sides of the second polygonal pillar. A GUI unit for generating a Graphical User Interface (GUI) including a displayed content layer; And a controller configured to control a GUI generation operation of the GUI unit.

Preferably, the content layer may represent at least one content type among still images (Photo), movie (Movie), music (MP3), and text, and the device layer may be a still image, a movie, music, And a storage medium storing at least one content of text.

Also, preferably, the GUI generated by the GUI unit may further include a task layer representing task information using at least one of the sides of the third polygonal pillar. Here, the task layer may represent at least one content tasking function of slide show, CD burning, and new folder creation.

In addition, preferably, the first polygonal pillar and the second polygonal pillar may be any one of a triangular prism, a square pillar, a pentagonal pillar, and a hexagonal pillar.

Also, preferably, the first polygonal pillar and the second polygonal pillar may be pillars of the same structure.

On the other hand, the user interface method, a) representing the device information using at least one of the sides of the first polygonal column; And b) representing content information using at least one of the sides of the second polygonal pillar.

Preferably, the content layer may represent at least one content type among still images (Photo), movies (Movies), music (MP3), and texts, and the device layers may include still images, movies, music, and It may represent devices including a storage medium that stores at least one content of text.

Also, preferably, step b) corresponds to content information displayed on the side of the second polygonal column among the contents included in the selected device when any one of the devices shown on the side of the first polygonal pillar is selected. Can represent content.

Also, preferably, the method may further include displaying task information using at least one of the sides of the third polygonal pillar. Here, the task layer may represent at least one content tasking function of slide show, CD burning, and new folder creation.

On the other hand, the electronic device according to the present invention, by using at least one of the sides of the first polygonal column to represent the upper menu item and at least one of the sides of the second polygonal column to represent the lower menu item A GUI unit for generating a graphical user interface (GUI) including a lower menu; and a controller for controlling a GUI generation operation of the GUI unit.

Preferably, the GUI generated by the GUI unit may further include another menu representing another menu item using at least one of the sides of the third polygonal pillar. Here, the other menu may be a lower menu of any one of an upper menu item and a lower menu item.

On the other hand, the user interface method according to the present invention, a) if the selected device of the plurality of devices is the first device, displaying the content information for the first type of content stored in the first device; And b) when the selected device is changed to a second device, displaying content information about the first type of contents stored in the second device.

Preferably, the method may further include receiving a selection of the first device and the second device. In this case, step a) may indicate content information on the first type of contents stored in the selected first device when the selection of the first device is input from the input step. When the selection change from the first device to the second device is input, content information regarding the first type of contents stored in the changed second device may be indicated.

On the other hand, the electronic device according to the present invention, a GUI unit for generating a GUI including a device layer indicating the device information and the content layer indicating the content information; And a controller configured to control the GUI unit to display content corresponding to the selected device when one of the devices of the device layer is selected.

Preferably, the GUI generated by the GUI unit may further include a task layer indicating task information. In this case, the controller may control the GUI unit to display at least one content type among still images (Photo), movies (Movies), music (MP3), and texts in the content layer, and the slide shows in the task layer. The GUI unit may be controlled to display at least one content tasking function of slide show, CD burning, and new folder creation.

Also, preferably, when any one of the devices indicated in the device layer is selected, the controller may control the GUI unit to display content corresponding to the content type designated in the content layer among the contents included in the selected device. .

On the other hand, the user interface method according to the present invention, if the selected upper menu item of the plurality of upper menu items is a first upper menu item, indicating a first type of submenu subordinate to the first upper menu item ; And when the selected first upper menu item is changed to a second upper menu item, displaying the first type of lower menu subordinate to the second upper menu item.

On the other hand, the electronic device according to the present invention, a GUI unit for displaying a graphical user interface (GUI) having a plurality of layers; And a controller configured to control the GUI unit so that at least one of the plurality of layers is changed.

Preferably, the controller may control the selected layer among the plurality of layers to be changed and the unselected layer to not be changed.

Also, preferably, the plurality of layers may be converted independently of each other.

Also, preferably, the plurality of layers may include at least one of a device layer indicating a type of device, a content layer indicating a type of content, and a task layer indicating a type of task.

Also, preferably, the controller may control to display at least one of a device product name, a memory capacity, and a product image on the device layer.

Also, preferably, the GUI unit displays information on the device and external devices connected to the device in the device layer under control of the controller, and displays information on the contents stored in the device set in the device layer in the content layer. In the task layer, a task supported by the device may be displayed.

Also, the switching command may include at least one of a device switching command, a content switching command, and a task switching command corresponding to each of the plurality of layers.

Also, preferably, each of the switching commands may include direction information for rotating each layer.

Also, preferably, when the device switch command is received, the control unit rotates the device layer based on the direction information included in the device switch command to switch the device and maintains the functions set in the content layer and the task layer. can do.

Also, preferably, when the device switch command is received, the controller may control the GUI unit to display contents of the type indicated by the content layer among the contents stored in the switched device in the content layer.

Also, preferably, the controller may further include an operation unit that receives a switching command for changing the plurality of layers, and the controller may control the GUI unit to rotate the layer corresponding to the switching command.

Also, preferably, the plurality of layers may be configured as one of three-dimensional GUI and two-dimensional GUI.

Also, preferably, when the plurality of layers is the 3D-GUI, the plurality of layers may be hexahedral.

Also, preferably, the controller may control to change the type of at least one layer among the plurality of layers.

On the other hand, the user interface method of the present invention comprises the steps of: displaying a graphical user interface (GUI) having a plurality of layers; And controlling the display step such that at least one of the plurality of layers is changed.

Preferably, the control step may control that the selected layer of the plurality of layers is changed and the unselected layer is not changed.

Also, preferably, the plurality of layers may be converted independently of each other.

Also, preferably, the plurality of layers may include at least one of a device layer indicating a type of device, a content layer indicating a type of content, and a task layer indicating a type of task.

Also, preferably, the control may control to display at least one of a device product name, a memory capacity, and a product image on the device layer.

Also, preferably, the display step may display information on the device and external devices connected to the device in the device layer according to the control of the control step, and information on the contents stored in the device set in the device layer in the content layer. The task supported by the device may be displayed on the task layer.

Also, the switching command may include at least one of a device switching command, a content switching command, and a task switching command corresponding to each of the plurality of layers.

Also, preferably, each of the switching commands may include direction information for rotating each layer.

Also, preferably, when the device switch command is received, the control step is to rotate the device layer based on the direction information included in the device switch command to switch the device, and to maintain the functions set in the content layer and the task layer. Can be controlled.

Also, preferably, when the device switch command is received, the control step may control the display step to display, on the content layer, contents of the type indicated by the content layer among the contents stored in the switched device.

Also, preferably, the method may further include receiving a switching command for changing the plurality of layers, and the controlling step may control the display step to rotate the layer corresponding to the switching command.

Also, preferably, the plurality of layers may be configured of any one of the 3D-GUI and the 2D-GUI.

Also, preferably, when the plurality of layers is the 3D-GUI, the plurality of layers may be hexahedral.

Also, preferably, the control step may control to change the type of at least one layer among the plurality of layers.

Hereinafter, with reference to the drawings will be described the present invention in more detail.

1 is a block diagram of an electronic device according to an embodiment of the present invention. Referring to FIG. 1, the electronic device includes an operation unit 110, a GUI 120, a control unit 130, and a display unit 140. The 3D-GUI provided by the electronic window 100 preferably has a hexahedral structure composed of at least one layer, but is not limited thereto. In addition, in the electronic device, the description is limited to the device layer, the content layer, and the task layer for convenience of description.

Here, information about the electronic device 100 and external devices connected to the electronic device 100 is provided in the device layer, and contents stored in the electronic device 100 and external devices connected to the electronic device 100 are provided in the content layer. Information about the information is provided, and the task layer is provided with information about a task for executing a function for a user command input from a user in the electronic device 100 and an external device connected to the electronic device 100. In this case, the information provided to each layer is information about a device, content, and a task selected by the user.

The operation unit 110 includes a key button, a touch panel, a mouse, and the like, and is mainly used to receive a user's command and select or execute an item indicated by the user from among items displayed in the 3D-GUI.

In addition, the operation unit 110 transmits a device switch command, a content switch command, and a task switch command input from a user among a plurality of layers shown in the 3D-GUI to the controller 130 to be described later. At this time, each switching command includes direction information for rotating each layer.

The GUI 120 displays the 3D-GUI composed of a plurality of layers on the display unit 140 under the control of the controller 130 to be described later.

3D-GUI is a GUI that is displayed and changed three-dimensionally in three-dimensional space. Specifically, the 3D-GUI may be 'moved' according to the X-axis, the Y-axis, the Z-axis, or the synthesized axis of the '3-D-GUI screen' or the 'contents displayed on the 3-D-GUI screen', It means a GUI that can be changed while moving. The contents displayed on the 3D-GUI screen include icons, menus, lists, pointers (cursors), and images.

In addition, when the contents are larger than the size of the content layer, the GUI unit 130 may include a sliding bar for scrolling and displaying the content layer in order to display the contents layer. Mark on.

In addition, the GUI unit 130 displays the content folder and the contents arranged by the controller 130 in a predetermined region of the content layer. At this time, the GUI unit 130 also displays the type of content set in a predetermined region of the content layer.

The controller 130 controls the GUI unit 120 to display the 3D-GUI whose layer is changed in accordance with the switching command received from the manipulation unit 110 on the display unit 140.

Specifically, when the device switch command is received, the controller 130 switches the device by rotating the device layer in the direction included in the device switch command, and provides information such as product name, memory capacity, and product image of the converted device. Control the GUI 120 to display. At this time, upon receiving the device change command, the controller 130 controls to rotate only the device layer while maintaining the content layer and the task layer.

That is, the controller 130 rotates the device layer so that the information on the switched device is located in the device layer of the reference plane. In addition, the controller 130 provides the user with the content for the previous device and the task to be executed in the switched device by not rotating the content layer and the task layer. Here, the reference plane composed of the currently selected device, content, and task is a surface that receives a user command through the operation unit 110 and displays the processing result to the user.

In addition, when the content change command is received, the controller 130 rotates the content layer in the direction included in the content change command to change the content, and controls the GUI unit 120 to display items for the converted content. Here, the content item includes a still image, a video, music, text, and the like. At this time, upon receiving the content change command, the controller 130 controls to rotate only the content layer while maintaining the device layer and the task layer.

In addition, the controller 130 controls the GUI unit 120 to separately display the folders in which the contents stored in the device are stored. That is, referring to FIG. 2, the controller 130 controls the GUI unit 120 to process background colors of respective folders differently.

In this case, the controller 130 controls the GUI unit 120 to display, on the content layer, information about the content selected by the user stored in different paths in the device displayed on the device layer. For example, when the content item selected by the user is music, that is, when music is displayed in the content layer, the controller 130 processes the folders in which the music files stored in the device displayed on the device layer are located so as to distinguish the contents. The GUI unit 120 is controlled to display on the layer.

 In addition, when a task switch command is received, the controller 130 switches the task by rotating the task layer in the direction included in the task switch command, and controls the GUI unit 120 to display the type of the switched task. Here, the task includes all tasks supported by the electronic device 100, such as a slide show, album making, image editing / playback, music playback, and the like. At this time, upon receiving the task switch command, the controller 130 controls the device layer and the content layer to remain as they are and rotates only the task layer.

In addition, the controller 130 arranges the contents folder and the contents stored in the device displayed on the device layer in the order of the stored dates.

3 is a diagram illustrating an example of a 3D-GUI according to a case where a menu operation is focused on a function of a content layer in an electronic device according to the present invention.

Referring to FIG. 3, a digital camera on a device layer, a still image on a content layer, and an organization on a task layer are displayed to the user on the reference plane. When the device switching command is received from the operation unit 110, the controller 130 controls to switch (PC) the digital camera displayed on the device layer of the reference plane to the personal computer by rotating the device layer.

At this time, the function set to "still image" is maintained in the content layer, but the still image stored in the personal computer is displayed from the still images stored in the digital camera. That is, the controller 130 switches the device type according to the received device switching command and displays the still image among a plurality of content items (image, still image, text) stored in the switched device. ). The controller 130 maintains the function set to "Align" for the task layer in the same manner as the content layer, but arranges the still images stored in the personal computer.

As shown in FIG. 3, in the case where the stored data is to be moved between devices, the contents selected by the user among the contents stored in the device (digital camera) set in the device layer displayed on the reference plane are displayed on the display unit 140. Drag and drop out of the GUI. Then, the device of the device layer (digital camera) is switched to the device (personal computer) to which the selected contents are to be moved by the operation of the operation unit 110. Then, by dragging & dropping selected contents on the content layer displayed on the reference plane, the contents selected by the user are moved to the switched device (personal computer).

 4 is a diagram illustrating an example of a 3D-GUI according to a case where a menu operation is focused on a function of a task layer in an electronic device according to the present invention.

Referring to FIG. 4, a digital camera is displayed on the device layer, a still image on the content layer, and a slide show on the task layer, respectively, on the reference plane.

In this case, when the still image stored in the digital camera and the music files stored in the MP3 player are to be played back, the controller 130 controls the still image files selected by the user among the still images displayed on the content layer, a device switch command, and a content switch command. A slide show is performed on the music files selected by the user among the music files stored in the MP3 player and the MP3 player which have been converted according to the present invention. Accordingly, the still image file and the music files selected by the user stored in the other external device can be played simultaneously. At this time, it is also possible to set the screen switching atmosphere used when changing the screen of the still image selected in the slide show.

In addition, when the task layer is CD burning, the controller 130 may store still image files and music files selected by the user by switching the device layer and the content layer among contents stored in different external devices. have. That is, the controller 130 may execute various types of contents selected by the user in the plurality of devices according to the set task function by switching the device layer and the content layer.

 FIG. 5 is a diagram illustrating an example of a 3D-GUI according to a case where a menu operation is focused on a function of a device layer in an electronic device according to the present invention.

Referring to FIG. 5, the controller 130 controls the GUI unit 120 to display a digital camera on a device layer, a still image on a content layer, and CD burning on a task layer, respectively, on a reference plane.

In this case, when a still image, text, or video file stored in the digital camera is to be stored on a CD, the controller 130 may display the GUI 120 such that the still image files selected by the user among the still images displayed on the content layer are displayed on the task layer. Control the unit. In addition, the controller 130 switches the content item from a still image to a video according to a content change command, and controls the GUI unit 120 so that video files selected by a user among the video files stored in the digital camera are accumulated and displayed on a task layer. To control.

In addition, the controller 130 converts the content item from the video to the text according to the content switching command, and the GUI unit 120 so that the text files selected by the user among the text files stored in the digital camera are accumulated and displayed on the task layer. To control. Accordingly, when an icon for executing CD burning is selected in the task layer, still images, moving images, and text files accumulated in the task layer are stored in the CD. That is, the contents selected by the user by switching the content layer are stored on the CD.

Meanwhile, in the electronic device according to the present invention, for convenience of description, the 3D-GUI composed of three layers such as a device, content, and a task has been described. However, the present invention is not limited thereto. 3D-GUI can be configured without limit on the number of layers.

On the other hand, in the electronic device according to the present invention, the three-dimensional GUI has been described to be limited to the hexagonal pillar of the hexahedral structure for convenience of description, but is not limited to this, the three-dimensional GUI is a triangular prism, square pillar It may have a shape of a polygonal pillar such as a pentagonal pillar. In addition, although each layer of the 3D-GUI has been described as being limited to the same shape for convenience of description, the present invention is not limited thereto and each layer may have a different shape.

Up to now, the electronic device providing the 3D-GUI composed of a plurality of layers has been described. Hereinafter, a mobile terminal providing a 2D-GUI composed of a plurality of layers will be described with reference to FIGS. 6 and 7.

6 is a view for explaining another embodiment of the user interface according to the present invention.

Referring to FIG. 6, a reference plane of a GUI provided by a mobile terminal device includes a content layer and a task layer. In this case, similar to the 3D-GUI, the controller 130 may switch the content and the task by rotating the content layer and the task layer according to the switching command received from the manipulation unit 110. In this case, the controller 130 controls the GUI unit 120 to display the content and the type of the task in two dimensions on the display unit 140.

FIG. 7 is a diagram for describing a 2D-GUI supporting multitasking provided according to another embodiment of the present invention. 7 uses both layers as content layers to support multitasking.

Referring to FIG. 7, when a user wants to simultaneously play a plurality of contents provided by a mobile terminal device, a multitasking mode is selected by the user. In this case, the multitasking mode may be set by an icon, a menu selection, or the like provided by a hard button or a 2D-GUI outside the mobile terminal.

When the multitasking mode command is received from the manipulation unit 110, the controller 130 switches the task layer of the reference plane into the content layer. Accordingly, a plurality of contents selected by the user can be played back simultaneously.

That is, when the user wants to play still images and music files stored in the mobile terminal device, the controller 130 plays still images selected by the user in the first content layer, and music selected by the user in the second content layer. Control to play. That is, when the multitasking mode command is received, the controller 130 converts the remaining layers other than the content layer into the content layer so that a plurality of layers are used as the content layer.

In this case, when the user wants to simultaneously play the selected music file or the still image file while inputting / editing the text, the controller 130 displays the text input through the operation unit 110 on the first content layer. Control, and multitasking may be provided to the second content layer by playing music / still image files selected by the user.

On the other hand, the 2D-GUI provided by the mobile terminal according to another embodiment of the present invention, when using a plurality of layers as the content layer, the content selected by the user in the order of the first content layer and the second content layer Regardless of whether the image is displayed on either the first content layer or the second content layer.

On the other hand, the multitasking provided by the mobile terminal according to another embodiment of the present invention is not limited to the 2D-GUI, but can be applied to any electronic device providing a user interface using a plurality of layers. Accordingly, multitasking can be applied to a 3D-GUI provided by an electronic device according to an embodiment of the present invention by converting a plurality of layers into one specific layer.

Until now, an electronic device providing a 3D-GUI and a 2D-GUI composed of a plurality of layers such as a device layer, a content layer, and a task layer has been described, but the electronic device according to the present invention is not limited thereto.

Specifically, in another embodiment of an electronic device providing a GUI having a polygonal pillar structure according to an embodiment of the present disclosure, device information displayed on a device layer may be represented by a higher menu item selected by a user among upper menu items, and content information. May be represented as a first type of upper menu item subordinate to a higher menu item or a first type of lower menu item subordinate to an upper menu item selected by a user. In this case, the task information may indicate a menu item different from the upper menu item and the lower menu item, and the other menu item is a submenu item dependent on any one of the upper menu item and the lower menu item.

As described above, according to the present invention, by providing a three-dimensional GUI that each of the plurality of layers independently moves, not only can the menu be efficiently operated, but also the menu can be personalized according to the user's preference.

In addition, although the preferred embodiment of the present invention has been shown and described above, the present invention is not limited to the specific embodiments described above, but the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Of course, various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

Claims (17)

Generating a graphical user interface (GUI) including a device layer representing device information using at least one of the sides of the first polygonal column and a content layer representing content information using at least one of the sides of the second polygonal column. A GUI unit; And And a controller which controls a GUI generation operation of the GUI unit. The method of claim 1, The content layer represents at least one content type among still images (Photo), movies (Movie), music (MP3), and text. And the device layer represents devices including a storage medium storing at least one of the still image, the moving picture, the music, and the text. The method of claim 1, GUI generated by the GUI unit, And a task layer representing task information using at least one of the sides of the third polygonal pillar. And the task layer represents a content tasking function of at least one of slide show, CD burning, and new folder creation. The method of claim 1, And the first polygonal pillar and the second polygonal pillar are any one of a triangular prism, a square pillar, a pentagonal pillar, and a hexagonal pillar. The method of claim 1, And the first polygonal pillar and the second polygonal pillar are pillars of the same structure. a) presenting device information using at least one of the sides of the first polygonal pillar; And b) presenting content information using at least one of the sides of the second polygonal pillar. The method of claim 6, The content layer represents at least one content type among still images (Photo), movies (Movie), music (MP3), and text. And the device layer represents devices including a storage medium storing at least one of the still image, the moving picture, the music, and the text. The method of claim 6, Step b), When any one of the devices shown on the side of the first polygonal column is selected, the user interface, which indicates the content corresponding to the content information displayed on the side of the second polygonal column among the contents included in the selected device Way. The method of claim 6, And displaying task information using at least one of the sides of the third polygonal pillar. The task layer may represent a content tasking function of at least one of slide show, CD burning, and new folder creation. Graphical User Interface (GUI) comprising an upper menu indicating a higher menu item using at least one of the sides of the first polygonal column and a lower menu indicating a lower menu item using at least one of the sides of the second polygonal column. GUI unit for generating; And And a controller which controls a GUI generation operation of the GUI unit. The method of claim 10, GUI generated by the GUI unit, And another menu representing another menu item using at least one of the sides of the third polygonal column. The other menu is a user interface method of any one of the upper menu item and the lower menu item. a) if the selected device among the plurality of devices is the first device, presenting content information on the first type of contents stored in the first device; And b) when the selected device is changed to a second device, displaying content information about the first type of contents stored in the second device. The method of claim 12, Receiving input of selection of the first device and the second device; Step a) is When the selection of the first device is input from the input step, content information on the first type of contents stored in the selected first device is displayed. Step b), And when the selection change from the first device to the second device is input from the input step, content information on the first type of contents stored in the changed second device is displayed. A GUI unit for generating a GUI including a device layer representing device information and a content layer representing content information; And And a controller configured to control the GUI unit to display content corresponding to the selected device when one of the devices of the device layer is selected. The method of claim 14, GUI generated by the GUI unit, And a task layer representing task information. The control unit, The GUI controls the content layer to display at least one content type among still images (Photo), movies (Movies), music (MP3), and texts. And controlling the GUI unit to display at least one content tasking function among a slide show, a CD burner, and a new folder in the task layer. The method of claim 14, The control unit, And when one of the devices indicated by the device layer is selected, controlling the GUI unit to display content corresponding to a content type designated in the content layer among contents included in the selected device. If a selected upper menu item among a plurality of upper menu items is a first upper menu item, indicating a first type of lower menu subordinate to the first upper menu item; And And when the selected first upper menu item is changed to a second upper menu item, displaying the first type of lower menu subordinate to the second upper menu item.

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