KR100524760B1 - A method and a device of display with sticking/de-sticking for mobile phone - Google Patents

Abstract

The present invention relates to an expansion of the display unit that can be easily attached to and detached from the portable terminal and can be selectively expanded vertically or horizontally. The main body unit monitors and controls the operation of the entire portable terminal and operates mobile communication; A display unit connected to the main body unit in a rotational state to display operation information, character level information, and image information of the portable terminal and to include a speaker integrally; A hinge unit for fixedly coupling the main body unit and the display unit in a folder rotation state and transmitting a signal; An extended display unit connected to the display unit in a detachable rotary coupling state to display operation information, character level information, and image information; A connecting part configured to rotate and fix the display part and the extended display part in a detachable state, and to transmit a corresponding signal, and further comprising: determining whether the extended display part is attached to the connection part of the portable terminal; A connection step of determining whether the display unit and the extended display unit are connected and fixed through the connection unit in the start process, whether the display unit and the extended display unit are connected up and down; In the connection process, if it is determined that the vertical connection, the display unit and the extended display unit to determine whether the separate display, if the separate display, separate display process for applying different data to the display unit and the extended display unit for display; If it is determined that the left and right connection in the connection process, the display unit and the extended display unit is set to one display unit to determine whether to enlarge the display, and in the case of enlarged display, the display unit and the extended display unit is set to one display unit by applying the same magnified data. It is characterized by an enlarged display process.

Description

Removable display part expansion structure and method of mobile terminal {A METHOD AND A DEVICE OF DISPLAY WITH STICKING / DE-STICKING FOR MOBILE PHONE}

The present invention relates to an extension of a display unit of a portable terminal, and more particularly, to a structure and a method of expanding and detaching a display unit of a portable terminal capable of selecting an extended display unit that is easily removable in a vertical or horizontal connection state.

A mobile terminal (MS) is a mobile communication system that uses voice level signals while moving in a service area of a registered mobile communication system. As a result of technology, data level communication including characters and symbols has been developed. In addition, multimedia-class communication including an image has been developed.

In the case of the voice-level communication, the voice-level signal output function is important because the communication using the ear hearing is important, and the display function is important because the text-level communication and the multimedia-class communication use the eye's eye.

In the case of the character-class communication, the amount of transmission of character data including various symbols is increased, so that the size of the existing display unit is increased so that a large number of character data can be displayed at a time and displayed in a large font character for a person with low vision. There is a need.

In order to display a large number of character data at once or to display a large font (FONT) for a person with low vision, the size of the display unit should be increased. The method of use is proposed.

When using an external display unit in the portable terminal is cumbersome or inconvenient, there is a problem that the portability and convenience of use are restricted, so it is necessary to solve this problem.

Hereinafter, a display unit structure of a mobile terminal according to the prior art will be described with reference to the accompanying drawings.

1 is a diagram illustrating an external configuration of a portable terminal according to the prior art.

Referring to FIG. 1, the external configuration of the portable terminal 10 according to the related art includes a circuit unit for communicating while moving, a battery for supplying operation power, a keyboard for inputting operation control commands and dialing signals, and the like. Body portion 20 to be; Rotating and fixedly coupled to the main body 20 is composed of a folder type (FOLDER TYPE) integrally, and the display unit 30 for displaying the operation state information and text information of the mobile terminal and at the same time display the video signal.

Hereinafter, a portable terminal external configuration according to the related art having the above configuration will be described in detail with reference to the accompanying drawings.

Since the main body 20 of the portable terminal 10 transmits and receives a corresponding signal wirelessly by a circuit unit provided integrally, the mobile terminal 10 performs mobile communication, and communicates using the portable terminal 10 or has an embedded additional function. Record and manage the other party's phone number using the phone book, input control commands for transmission and reception using the keyboard, include a microphone for voice level communication, symbols and letters for character level communication, etc. By inputting a variety of messages of the video recording apparatus provided separately using a video signal is added to enable a multimedia communication, the function is operated by a power supplied from a battery that is integrally configured.

The display unit 30 fixedly coupled to the main body unit 20 in the rotation state as described above displays various information for confirming the operating state of the mobile terminal 10 and at the same time displays various message signals by text communication and provides multimedia Displays various video signals by communication.

The display device configuring the display unit 30 is, for example, a liquid crystal display (LCD), and is designed to occupy the maximum possible area of the folder-type display unit 30, but the liquid crystal The display device does not exceed the surface area of one side of the display unit 30, and the area of the display unit 30 gradually decreases due to the miniaturization and lightening trend.

However, the amount of text data to be transmitted in the information society is increasing, and the display unit 30 is connected through an online game and an internet connection using a mobile terminal (MS) by developing and providing various additional services of a mobile communication service provider. Increasing the frequency of use, and in the multimedia communication to communicate with each other using an image (IMAGE).

Therefore, it is not possible to check a message quickly by displaying a lot of character-level data at once, and do not apply various backgrounds and the number of cases when playing online games, and do not easily check various information at a time when connecting to the Internet, and multimedia communication In this case, there is a problem such that the display of the small size does not correctly recognize the image of the other party.

According to the present invention, an external extended display unit which is easily detachable and rotatable is attached to a display unit of a mobile terminal, and the selected state is set to be in a vertical or horizontal connection with an existing display unit, and the connection state is automatically recognized to display a corresponding data signal. It is an object of the present invention to provide a removable display unit extension structure and method for a portable terminal.

The present invention has been made to achieve the above object, the main body unit for monitoring and controlling the operation of the entire portable terminal and the mobile communication; A display unit connected to the main body unit in a rotational state to display operation information, character level information, and image information of the portable terminal and to include a speaker integrally; A hinge unit for fixedly coupling the main body unit and the display unit in a folder rotation state and transmitting a corresponding signal; An extended display unit connected to the display unit in a detachable rotary coupling state to display operation information, character level information, and image information of the portable terminal; The display unit and the extended display unit is characterized in that consisting of a connecting portion for rotating and fixing in a detachable state and transmitting a corresponding signal.

In addition, the present invention has been made in order to achieve the above object, the start process of determining whether the expansion display is attached to the connection portion of the portable terminal; A connection step of determining whether the display unit and the extended display unit are connected and fixed through the connection unit in the start process, whether the display unit and the extended display unit are connected together; A separate display process of determining whether the display unit and the extended display unit are separated and displayed in the connection process, and separately displaying data by applying different data to the display unit and the extended display unit when the display unit and the extended display unit are separately displayed. If it is determined that the left and right connection in the connection process, the display unit and the extended display unit is set to one display unit to determine whether to enlarge the display, and if the enlarged display in the determination, the same data enlarged by setting the display unit and the extended display unit as one display unit Characterized in that the enlarged display process for displaying by applying.

Hereinafter, a removable display unit extension structure and method of a mobile terminal according to the present invention will be described with reference to the accompanying drawings.

2 is an explanatory view of an extension structure of a detachable rotation display unit of a mobile terminal according to the present invention, FIG. 3 is an explanatory view of a detachable rotation coupling state of a mobile terminal according to the present invention, and FIG. 5 is an explanatory view of a detachable state of a portable terminal connection unit according to the present invention. FIG. 5 is an explanatory view of the attached state rotation signal contact point of the portable terminal connection unit according to the present invention, and FIG. 6 is an explanatory diagram of a planar structure of a portable terminal connection unit according to the present invention. FIG. 7 is an explanatory view of a separated display state of the display unit and the extended display unit according to an example of the present invention, FIG. 8 is an explanatory view of an enlarged display state of the display unit and the extended display unit according to an example of the present invention, and FIG. This is a flowchart of how to extend the detachable display unit of the portable terminal.

Hereinafter, the removable display unit expansion structure of the mobile terminal according to the present invention will be described with reference to FIGS. 2 to 6.

The mobile terminal 100 communicating while moving is to monitor and control the entire mobile terminal 100 and to operate mobile communication. The mobile terminal 100 is a circuit unit for processing mobile communication signals and various control signals, a microphone for inputting voice level signals, and various controls. A key button unit for inputting a command and a signal, a battery for supplying operating power of the mobile terminal MS, and the like are integrally provided, and the expansion display unit 140 is connected to the display unit 120 through the connection unit 150 described later. If the connection is connected, it is determined whether the vertical connection or the left and right connection, and according to the application method set in the determined connection, so that different data is displayed on the display unit 120 and the expansion display unit 140, respectively or the same data Main body 110 for controlling selection to be enlarged and displayed;

It is connected to the main body 110 in a fixed fixed state to display a speaker (SPEAKER) to display the operational information, character level information, image information, and the like of the mobile terminal 100 and outputs a sound level signal integrally, When the expansion display unit 140 is attached to and fixed to the connection unit 150 under the control of the main body unit 110, the display unit 120 transmitting the corresponding data signal to the expansion display unit 140 through the connection unit 150. ,

A hinge unit 130 fixedly coupling the main body unit 110 and the display unit 120 to a folder rotation state and transmitting various data signals corresponding thereto;

It is electrically connected to the display unit 120 to display various operation information, character level information, and image information of the mobile terminal 100, and is easily connected to the display unit 120 by rotating coupling through the connection unit 150. And the display unit 120 and the vertical connection state or the left and right connection state is selectively set in the rotating coupling attachment state, the expansion display unit 140 for easy separation by rotating the removable coupling through the connecting portion 150,

The display unit 120 and the extended display unit 140 are rotated in a detachable state and transmit a corresponding signal. The display unit 120 and the extended display unit 140 are integrally fixed to one side edge of the display unit 120 to provide various data signals to the extended display unit 140. A shaft portion 125 having a first shaft contact point 127 and a second shaft contact point 129 for transmitting; It is integrally fixed to one edge of the expansion display unit 140, the inner diameter of the annular shape is in close contact with the outer diameter of the shaft portion 125 and connected to the first shaft contact 127 or the second shaft contact 129 It consists of an annular portion 145 having a ring contact 148 for transmitting a data signal, and at the same time, the display unit 120 and the extended display unit 140 are rotated in a detachable state, and the attached state in which the rotatable connection is a vertically connected state. In this case, the ring contact 148 and the first shaft contact 127 are connected, and when the rotationally connected state of attachment is left and right connection, the ring contact 148 and the second shaft contact 129 are connected to each other. It is composed of a connection unit 150 for transmitting various data signals.

Hereinafter, the present invention having the above-described configuration will be described in detail with reference to FIGS. 2 to 8 attached to the detachable rotating display extension structure of the mobile terminal 100.

The portable terminal 100 is a mobile terminal for mobile communication (MS), and freely moves within the service area and communicates wirelessly with the other party anytime and anywhere, and includes a voice level communication method, a data level communication method using text, and the like. There is a multimedia communication method including an image signal, an audio signal, and a data signal.

In the data communication method, the size of the display unit 120 is increased in order to display a large number of characters at an appropriate size at one time. However, since the external size of the mobile terminal 100 is limited by the tendency to be smaller, it is limited. The display unit 140 is added, and the extended display unit 140 as described above is required in order to enlarge and display an image IMAGE in a multimedia communication system.

The portable terminal 100 is generally composed of a fold type (FOLDER TYPE), the main body 110 and the display unit 120 is fixedly coupled in a rotating state by the hinge (HINGE) action of the hinge 130, The main body 110 includes a microphone for inputting a voice level signal, a key button for inputting various control commands and data, a battery for supplying operation power of the mobile terminal 100, and a mobile communication function of the mobile terminal 100. And a circuit unit for processing the same, and are integrally formed, and output various data signals for monitoring and controlling the operating states of the display unit 120 and the extended display unit 140.

Since the extended display unit 140 is easily attached and fixed integrally through the connection unit 150, the extended display unit 140 is electrically and mechanically coupled to the display unit 120 and is easily detached from the display unit 120.

The main body 110 monitors and recognizes the detachable and attached state of the extended display unit 140 through the connection unit 150, and displays the corresponding data on the display unit 120 and the extended display unit 140 according to a set application method. Display. For example, as shown in FIG. 7, the data is separately displayed on the display unit 120 and the extended display unit 140, or on the display unit 120 and the extended display unit 140 as shown in FIG. 8. If the same data is enlarged and displayed, and the same data is enlarged and displayed as described above, the size displayed on the display unit 120 and the extended display unit 140 is appropriately set so that the corresponding data is normally displayed without distortion. do.

The extended display unit 140 is connected to the display unit 120 through the connection unit 150 and is connected to the display unit 120 vertically or horizontally by the rotational movement of the connection unit 150. 2 shows a vertical connection and a left and right connection state.

3 is a cross-sectional view showing a configuration state according to an example of the connection portion 150, and shows that the cylindrical portion 125 is fixed integrally provided on one side edge of the display portion 120, It is shown that the ring portion 145 having an inner diameter that closely matches the outer diameter of the shaft portion 125 is integrally fixed to one side edge of the extended display portion 140, and the shaft portion 125 and the ring are integrally fixed. The attachment state to which the unit 145 is coupled is shown in cross section.

The attached FIG. 4 configures the connection part 150. The shaft part 125 integrally fixed to the display part 120 and the ring part 145 integrally fixed to the expansion display part 140 are provided. The attached state is shown in a perspective view.

As described above, the display unit 120 and the extended display unit 140, which are easily detachable through the connection unit 150 and are coupled in a rotating state, allow the main body unit 110 to recognize a vertical connection and a left / right connection state. As described above, the contact point for transmitting the data signal outputted from the main body part is provided in the shaft part 125 and the ring part 145, respectively. 6 is a cross-sectional view of the shaft portion 125 and the ring portion 145 each having a corresponding contact.

When the extended display unit 140 and the display unit 120 are connected and operated in an extended state, the shaft portion 125 of the display unit 120 uses the inner diameter of the ring unit 145 formed integrally with the connection unit 150. ), And the data signal is transmitted since the first or second shaft contacts 127 and 129 of the shaft portion 125 and the ring contacts 148 of the ring portion 145 are connected or contacted with each other.

For example, when the display unit 120 and the extended display unit 140 are vertically connected, the first shaft contact point 127 of the shaft portion 125 and the ring contact point 148 of the ring portion 145 are connected to each other. When the display unit 120 and the extended display unit 140 are connected to the left and right, the second shaft contact point 129 of the shaft portion 125 and the ring contact point 148 of the ring portion 145 are connected to each other. The first and second contact points 127 and 129 of 125 form an angle of 90 degrees in one embodiment. 6, the configuration state of the first and second shaft contacts 127 and 129 of the shaft portion 125 is shown in cross section.

As described above, the display unit 120 and the extended display unit 140, which are easily detachable by the connection unit 150 and are rotatably connected and fixed, are displayed on the display unit 120 as shown in FIG. ) And different data are displayed on the extended display unit 140, or as shown in FIG. 8, the display unit 120 and the extended display unit 140 are recognized as one display unit, and the same data is displayed in an enlarged state. If so, the control is monitored to be displayed in a distorted state.

Therefore, since the extended display unit 140 that is rotatable and detachable to the mobile terminal 100 is attached and fixed through the connection unit 150 structure, the video signal of the multimedia is enlarged to be displayed in large size or a large amount of text data is displayed. If it is not necessary to display an enlarged display or a large amount of data as described above, it is detached and separated.

Hereinafter, with reference to the accompanying Figure 9, the removable rotation display unit expansion method of the mobile terminal according to the present invention will be described.

The main body 110 of the mobile communication terminal 100 may include a start process (S10) of determining whether the display unit 120 and the extended display unit 140 are connected through the connection unit 150;

When the display unit 120 and the extended display unit 140 are connected in the start process (S10), the connection process (S20) for determining whether the upper and lower or left and right connected by the main body unit 110,

If it is determined that the connection is up and down in the connection process (S20), it is determined whether to display the data content displayed on the display unit 120 and the extended display unit 140 separately, and the respective data is displayed separately from the determination. In the case of displaying different data on the display unit 120 and the extended display unit 140, the method determines whether to separately display different data on the display unit 120 and the extended display unit 140 (S30). ; When it is determined that the display is separated in the process (S30), the separate display process consisting of the step (S40) for displaying the different data on the display unit 120 and the extended display unit 140 in the set application method,

If it is determined in the connection process (S20) that the left and right connections, the display unit 120 and the extended display unit 140 is set to one display unit to determine whether to enlarge the display, and if the enlarged display in the determination, the display unit 120 and expansion Setting the display unit 140 to operate together with one display unit to display the same enlarged data, and determining whether to display the enlarged same data on the display unit 120 and the extended display unit 140 (S50); In the case where the enlarged display is determined in the process S50, the display unit 120 and the expanded display unit 140 are set to one display unit, and the enlarged process of displaying the data in a set application manner according to the size is enlarged (S60). It consists of an enlarged display process.

In addition, when it is determined in the separation display process (S30) that the display unit 120 and the extended display unit 140 are separated to prevent different data from being displayed, the expansion process (S60) of the enlarged display process. If it is determined in the enlarged display process that the enlarged display is not displayed, the process proceeds to the separation process S40 of the separate display process.

Hereinafter, the present invention having the above-described configuration will be described in detail with reference to the accompanying drawings for a removable display unit expansion method of the mobile terminal 100.

The main body 110 of the mobile communication terminal 100 determines whether the extended display unit 140 is connected to the display unit 120 through the connection unit 150 and is expanded (S10). In the case where it is determined that the display unit 120 and the extended display unit 140 are integrally connected and extended through the connection unit 150, it is determined whether the extended connection state is the vertical connection state or the left and right connection state (S20). .

In the process (S20), for example, when it is determined that the display unit 120 and the extended display unit 140 are vertically connected, the data contents to be displayed on the display unit 120 and the extended display unit 140 are separated from each other. If it is determined whether to display or to enlarge and display a single data (S30), and if it is determined that the display is selected and set separately to display in the step (S30), respectively, the main body 110 is set to the corresponding application The corresponding data is separately displayed in a manner suitable for the extended state of the display unit 120 and the extended display unit 140 by the method (S40).

In another embodiment, when it is determined that the display unit 120 and the extended display unit 140 are connected left and right, the data to be displayed on the display unit 120 and the extended display unit 140 is enlarged. Recognize the display unit 120 and the extended display unit 140 as one display unit and determine whether to display the enlarged data or display the different data separately by separating the display unit 120 and the extended display unit 140, respectively. And if it is selected and set to enlarge and display in the step (S50), and the main body 110 is set to the size of the expanded state of the display unit 120 and the extended display unit 140 by the set application method Appropriately enlarged data is displayed (S60).

In addition, when the display unit 120 and the extended display unit 140 are separated from each other as determined in the separated display process S30, and each data is not set to be displayed, the enlarged process S60 of the enlarged display process. In operation, the enlarged data is displayed in accordance with the combined state of the display unit 120 and the extended display unit 140.

In addition, if it is determined in the enlarged display process S50 that the display unit 120 and the extended display unit 140 are recognized as one display unit, and the enlarged single data is not set to be displayed, the separation display process is separated. In step S40, the display unit 120 and the extended display unit 140 are separated, and different data are displayed.

That is, the main body 110 of the mobile terminal 100 determines whether the extended display unit is attached through the connection unit 150, and if the extended display unit is attached, determines whether it is connected vertically or left and right. It is determined whether the display unit and the extended display unit are set to display respective corresponding data by using the connected state, or whether the display unit and the extended display unit are set to display one data or the enlarged single data. As shown in FIG. 7, the respective data is displayed to be suitable for the vertical connection or the left and right connection state, and when the enlarged display is set, as shown in FIG. 8, the corresponding data is enlarged to the size of the display unit for the vertical connection or the left and right connection. The corresponding data.

Accordingly, since a large number of data level text signals and multimedia level video signals displayed on the portable terminal are simultaneously displayed or enlarged in an enlarged state, the displayed data can be easily recognized and distinguished.

The present invention having the above-described configuration provides a variety of options for displaying a large amount of text message data by data-level communication at one time or greatly expanding and displaying an image by multimedia-class communication through a mobile terminal. There is an industrial effect of activating communication.

In addition, there is a convenient effect of selecting and setting the extended display unit in an up-down connection state or a left-right connection state according to the use environment of the portable terminal, and displaying data suitably adapted to the extended display unit connection state.

1 is an external configuration of a portable terminal according to the prior art,

2 is an explanatory view of a removable rotating display unit extended structure of a mobile terminal according to the present invention;

3 is an explanatory view of a detachable rotary coupling state of a mobile terminal according to the present invention;

4 is a diagram illustrating a detachable state of a portable terminal connection unit according to the present invention;

5 is an explanatory diagram of an attached state rotation signal contact of a mobile terminal connection portion of the present invention;

6 is an explanatory diagram of a planar structure of a portable terminal connection unit according to the present invention;

7 is an explanatory view of a separated display state of a display unit and an extended display unit according to an embodiment of the present invention;

8 is an explanatory diagram of an enlarged display state of a display unit and an extended display unit according to an embodiment of the present invention;

9 is a flowchart illustrating a method for expanding a detachable display unit of a mobile terminal according to the present invention.

** Explanation of symbols on the main parts of the drawing **

100: portable terminal 110: main body 120: display unit

125: shaft portion 127: first shaft contact 129: second shaft contact

130 hinge portion 140 extended display portion 145 ring portion

148: ring contact 150: connection

Claims (12)

A main unit which monitors and controls the operation of the entire portable terminal and operates mobile communication; A display unit connected to the main body unit in a rotating state to display operation information, character level information, and image information of the portable terminal, and to include a speaker integrally; A hinge unit for fixedly coupling the main body unit and the display unit in a folder rotation state and transmitting a corresponding signal; An extended display unit connected to the display unit in a detachable rotary coupling state to display operation information, character level information, and image information of the portable terminal; Removable display unit extended structure of the portable terminal, characterized in that the display unit and the extended display unit is coupled to the rotationally fixed in a detachable state and transmitting a corresponding signal. The method of claim 1, wherein the main body portion, It is determined through the connection unit whether the extended display unit is connected to the display unit, and if connected, whether the vertical connection or left and right connection, and the mobile terminal characterized in that the control and monitoring so that the data is displayed in the application method of the identified connection. Removable indicator extension structure. The method of claim 1, wherein the display unit, When the expansion display unit is fixed to the connection unit by the control monitoring of the main body unit removable display unit expansion structure of the portable terminal, characterized in that for transmitting the data signal to the expansion display unit via the connection unit. The method of claim 1, wherein the connection portion, An axial part which is integrally formed at one edge of the display part and has a first axial contact point and a second axial contact point for transmitting a data signal to the extended display part, respectively; Consisting integrally on one edge of the extended display portion, the annular inner diameter is in close contact with the outer diameter portion of the shaft portion, and consists of a ring portion provided with a ring contact for transmitting a signal by connecting to the first shaft contact or the second shaft contact. Removable display unit extension structure of the mobile terminal. The method of claim 4, wherein the connecting portion, When the display unit and the extended display unit are fixed-rotated in a detachable state, and the fixed-rotation attachment state is a vertical connection, the ring contact point and the first shaft contact point are interconnected, and the rotation-connected attachment state is left and right connection. And the ring contact point and the second shaft contact point are interconnected to each other. The method of claim 1, wherein the extended display unit, Attaching the connecting portion in the rotary coupling state and fixedly connected to the display unit, select the vertical connection and the left and right connection by the rotation coupling fixed state, detachable detachment of the mobile terminal, characterized in that detaching and separating the connection unit Display extension structure. The method of claim 2, wherein the body portion, The display unit connected through the hinge unit and the extended display unit rotated and connected to the display unit through the connection unit monitor and control each other to display different data or to control and monitor the same data to be enlarged and displayed. rescue. A start process of judging whether an extension display unit is attached to the connection part of the portable terminal; A connection process of determining whether the display unit and the extended display unit are connected and fixed through the connection unit in the start process, whether it is connected vertically or left and right; In the connection process, if it is determined to be connected up and down, it is determined whether the display unit and the extended display unit are separated and displayed. If it is determined that the left and right connection in the connection process, the display unit and the extended display unit is set to one display unit to determine whether to enlarge the display, and if the enlarged display in the determination, the same data enlarged by setting the display unit and the extended display unit as one display unit Removable display unit expansion method for a portable terminal, characterized in that consisting of an enlarged display process for displaying. The method of claim 8, In the starting process, it is determined whether the extended display unit is connected through the connection unit of the display unit by the main body unit of the portable terminal. The connecting process of claim 1, wherein the extended display unit connected to the connecting unit by the main body of the portable terminal is connected to determine whether it is connected vertically or left and right. The method of claim 8, wherein the separation display process, Determining whether to separate and display different data on the display unit and the extended display unit by the main body unit; If it is determined that the display is separated in the process, the display unit and the extended display unit expansion method of the removable display unit, characterized in that consisting of the step of applying different data to the display unit. The method of claim 8, wherein the enlarged display process comprises: Determining whether to enlarge and display the same data on the display unit and the extended display unit by the main body unit; If it is determined that the display is separated in the process, the display unit and the extended display unit is set to one display unit, and the display unit expansion method of the removable terminal characterized in that the enlarged process for displaying the data to fit the size of the entire display unit. The method of claim 8, If it is determined that the separate display is not to be performed in the separate display process, the process proceeds to the enlarged display process to enlarge and display the same data on the display unit and the expanded display unit. And if it is determined in the enlarged display process that the enlarged display is not displayed, the display unit and the extended display unit apply data to the display unit and the extended display unit to display the separated data.