KR20070097271A - Mobile terminal having touch pad - Google Patents

Abstract

A mobile terminal having a touch pad is provided to enable a user to make a fun visually and make a mobile terminal compact by including a touch pad on an outer surface of the terminal instead of keys used in a pressing manner. A display unit(130) provides various corresponding information and user interfaces. A touch pad(170) inputs a tactile type key input by a user. A controller(180) controls each element and performs a corresponding function according to an input to the touch pad(170). The controller(180) activates or deactivates the touch pad(170) according to a state of a mobile terminal or an external input. When the mobile terminal is opened, the controller(180) activates the touch pad(170), and when the mobile terminal is closed, the controller(180) deactivates the touch pad(170). When a certain external function key is inputted in a closed state of the mobile terminal, the controller(180) activates the touch pad(170).

Description

Mobile terminal with touch pad {MOBILE TERMINAL HAVING TOUCH PAD}

1 is a block diagram showing the configuration of a mobile terminal having a touch pad according to an embodiment of the present invention.

Figure 2 is an external view showing the appearance of a mobile terminal having a touch pad according to an embodiment of the present invention.

3 is an exemplary view showing an application example of a touch pad implementation in a mobile terminal having a touch pad according to an embodiment of the present invention.

Figure 4 is an external view showing the appearance of a mobile terminal having a touch pad according to another embodiment of the present invention.

5 is an exemplary view showing an application example of a touch pad implementation in a mobile terminal having a touch pad according to another embodiment of the present invention.

*** Explanation of symbols for main parts of drawing ***

110: transceiver unit 120: storage unit

130, 212: display unit 140: audio output unit

150: voice input unit 160, 222, 422: keypad

170, 214, and 414: touch pad 180: control unit

210: slide 220, 420: body

410: cover 412: main display unit

416: secondary display portion 430: hinge portion

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile terminal including a cellular phone, a personal communication system (PCS), a personal digital assistant (PDA), a hand-held phone (HHP), and the like, and more particularly, to a mobile terminal having a touch pad. It is about.

In general, portable terminals have evolved at a high speed in response to user demands. In particular, portable terminals have been developed to include miniaturization, light weight, and various multimedia functions. However, there is a problem that causes too many functions in the small sized portable terminal, rather causing inconvenience to the user, and accordingly, a technique for improving the user's convenience has recently been proposed.

In particular, although a technique of using a touch pad in recent years has been proposed to improve the convenience of a user, a method implemented in a portable terminal does not exist.

The present invention has been proposed to solve the above problems, and an object of the present invention is to provide a portable terminal having a touch pad that can improve the user's convenience by applying the touch pad to the portable terminal.

Another object of the present invention is to provide a mobile terminal having a touch pad capable of suggesting a touch pad implementation method using a touch pad to be suitable for various types of portable terminals.

In order to achieve the above object, the portable terminal with a touch pad according to the present invention, the display unit for providing a variety of information and the user interface; A touch pad for touch key input from a user; And a controller configured to control each unit and perform a corresponding function according to the input of the touch pad, wherein the controller activates or deactivates the touch pad according to a state of a portable terminal or an external input.

The touch pad refers to a touch-sensitive user interface used in electronic devices. The touch pad allows a user to input information or a command by pressing or touching a touch sensing area. The touch pad may also be used as a keypad to perform a designated function. For example, the touch pad may operate as an on / off switch to allow a user to turn on / off the electronic device by pressing a touch sensing area. It may have various functions that can be selected in order to be able to enter or select a function.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

In describing the present invention, when it is determined that the detailed description of the related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

1 is a block diagram showing the configuration of a mobile terminal having a touch pad according to an embodiment of the present invention.

As shown in FIG. 1, the mobile terminal 100 having a touch pad according to an embodiment of the present invention includes a storage unit 120 for storing data; A display unit 130 for providing various corresponding information and a user interface (UI); A touch pad 170 for contact key input from a user; And a controller 180 that controls the units 120 to 170 and performs a corresponding function according to the input of the touch pad 170.

The portable terminal includes a transceiver 110 for transmitting and receiving a signal; A voice output unit 140 for outputting a voice signal; A voice input unit 150 for receiving a voice signal; It may further comprise a keypad 160 for the push key input from the user.

Although not shown, the portable terminal may further include at least one display unit (sub display unit) in addition to the display unit (main display unit) 130. The touch pad 170 may be located at the bottom of the main display unit 130 or at the bottom of the sub display unit.

The touch pad 170 is activated or deactivated by the control of the controller 180. The activated state of the touch pad 170 may be a key input of a touch key provided in the touch pad 170. This refers to a state capable of performing a corresponding function by receiving a key input of the touch pad 170. The deactivated state of the touch pad 170 does not allow a key input of the touch key provided on the touch pad 170 to receive a key input from the user. It does not perform the function even if it is not received or received.

In addition, the deactivation state may be operated in two ways or divided into two steps. As described above, a key input of the touch key may not be possible, or a long key for long press of a key when there is a key input on the touch key. When there is a key input of a predetermined method such as a method, the touch pad 170 may be activated. Two ways or steps of the inactive state may be specified by the user's menu setting.

The portable terminal 100 may be configured to include a locking means in order to prevent an invalid key input to the touch pad of the second inactive state. If the locking means is locked, the touch terminal may be touched regardless of the state of the touch pad 170. When there is a key input to the pad 170, the corresponding operation or function is not performed, and when there is a key input or a predetermined key input to the touch pad 170 only when the locking means is opened (unlocked). The touch pad 170 is activated in an inactive state or performs a corresponding function in an activated state.

The touch pad 170 includes a plurality of touch keys, and activates only the corresponding touch keys used for performing each function in an activated state and deactivates the other touch keys. Partial activation of the touch keys is performed by the control of the controller 180.

The touch key included in the touch pad 170 may include a backlight or may include a self-light emitting device, and at least one touch pad 170 when the touch pad 170 is activated according to the activation / deactivation state of the touch pad 170. A predetermined portion or all of the touch keys may be turned on, and the touch keys may be turned off when the touch pad 170 is in an inactive state. In addition, when the touch pad 170 is made of the same material as the exterior material of the mobile terminal 100 and is in an inactive state, the touch pad 170 may not be shown to the user as if it is not present at all.

The controller 180 activates or deactivates the touch pad 170 according to the open / close state of the mobile terminal 100. The method may be divided according to the type of the mobile terminal.

First, a case of a mobile terminal that opens and closes by a slide type or a swing type will be described.

The controller 180 may activate the touch pad 170 when the mobile terminal 100 is opened and deactivate the touch pad 170 when the mobile terminal is closed.

In addition, the controller 180 deactivates the touch pad 170 when the mobile terminal 100 is opened to make a call and when a call is connected according to call origination or call reception.

In addition, when the call is received and the mobile terminal 100 is opened, the controller 180 activates the touch pad 170 until the call is connected.

In addition, the controller 180 closes the mobile terminal 100 and the touch pad 170 when the external predetermined function key is input or a predetermined type of key (touch key) is input while the touch pad 170 is deactivated. ) Is activated.

In addition, the controller 180 deactivates the touch pad 170 when a key input of the keypad 160 or the touch pad 170 is not detected within a predetermined time while the touch pad 170 is activated. When the key input of the keypad 160 is detected, the touch pad 170 is activated again.

On the other hand, in the folder type or flip type portable terminal, as described above, the controller 180 deactivates the touch pad 170 when the portable terminal 100 is opened and the touch pad when the portable terminal 100 is closed. The touch pad may be activated by a predetermined input when the 170 is activated or the portable terminal is closed.

In this case, the controller 180 deactivates the touch pad 170 when a key input of the keypad 160 or the touch pad 170 is not detected within a predetermined time while the touch pad 170 is activated. .

In addition, the controller 180 closes the touch terminal 170 when a predetermined function key is input while the mobile terminal 100 is closed and a key input is not detected within a predetermined time and the touch pad 170 is deactivated. Activate it.

In addition, the controller 180 is closed when the mobile terminal 100 is closed and a key input is not detected within a predetermined time, and thus a touch (170) input of a predetermined method (touch key) is detected when the touch pad 170 is inactivated. ) Is activated.

In addition, the controller 180 closes the mobile terminal 100 and detects a key (touch key) input while the touch pad 170 is inactive because a key input is not detected within a predetermined time. In the following description, the touch pad 170 may be guided to activate a Turkish key, and the touch pad 170 may be activated when there is an input from a user who matches the guided method.

In addition, the controller 180 closes the touch terminal 170 when a predetermined function key is input while the mobile terminal 100 is closed and a key input is not detected within a predetermined time and the touch pad 170 is deactivated. Activate it.

Opening and closing of the mobile terminal 100 means that a folder or flip is opened and closed or a slide is raised and lowered.

The display unit 130 may provide a screen for guiding a function corresponding to each touch key of the touch pad 170 at a predetermined position.

The touch pad 130 is configured as a touch sensor such as a capacitive touch sensor to operate by detecting a user's fingertip touch, and a predetermined temperature range based on a human body temperature to prevent malfunction due to contact of other objects. It may be configured to include a thermal sensor that does not operate when there is less or more contact but operates only within that range.

The voice output unit 140 may be a speaker and the voice input unit 150 may be a microphone.

The mobile terminal 100 may include an input terminal coupled to an external input means such as a keyboard to receive a signal, in addition to the above-described configurations.

In addition, the portable terminal 100 may be configured to include an output terminal which is coupled to an external display device such as a television or a monitor or an external sound device such as a high output large speaker to output a video signal and an audio signal.

In addition, the portable terminal 100 includes a storage medium insertion unit for inserting an external storage medium, such as a memory card, or a unit having additional functions such as a broadcast receiving module, a camera module, an MP3 module, or an internet banking module. It can be configured to include.

In addition, according to the convergence (convergence) trend of the digital devices, the variation of the portable terminal is very diverse and can not be enumerated all, but the unit equivalent to the above-mentioned units in addition to the portable terminal 100 according to the present invention It can be easily understood by those skilled in the art that it can be configured to include more.

2 is an external view illustrating an external appearance of a mobile terminal having a touch pad according to an embodiment of the present invention, and FIG. 3 is a touch pad implementation of the mobile terminal having a touch pad according to an embodiment of the present invention. An illustration showing an application example.

As shown in FIG. 2, the mobile terminal 200 having a touch pad according to an embodiment of the present invention has a first body (hereinafter referred to as slide) 210 having a display unit 212 and a touch pad 214. Wow; And a second body (hereinafter referred to as a body) 220 having a keypad 222, and the slide 210 and the body 220 are fastened so that the slide 210 is in an up / down form. ) Is supposed to open and close.

Although not shown, the body 220 may include a battery and a camera on the back side.

As illustrated in FIG. 3A, the touch pad 214 is activated when the slide 210 is raised, and the backlight of each touch key is activated to emit light, and the slide 210 is lowered. Slide down to deactivate the backlight. In the drawing, the backlight emission of each touch key is indicated by bold lines and letters, and the touch keys with the backlight off are indicated by thin lines and letters.

In order to prevent erroneous input of a touch key that may occur when the user touches the touch pad 214 and raises the slide 210, the touch key input within a predetermined time when the slide 210 is raised may be used. The operation may not be performed.

In addition, as shown in FIG. 3B, when the call is made (transmitted) after the slide 210 is raised, the touch pad 214 is inactivated to turn off the backlight of each touch key. Since the touch key with the backlight off is inactive, the touch key does not operate even if the user touches the touch key with the backlight off.

In addition, as shown in FIG. 3C, when the slide 210 is raised and the call is connected, the touch pad 214 is deactivated as in the call transmission, and the backlight of each touch key is turned off.

However, when the call is received, the touch pad 214 may be activated before the call is connected. As shown in FIG. 3D, the backlight of each touch key does not turn off before the call is connected after the slide 210 is raised. One of the touch keys or a predetermined key having a rejection function such as an end key may be pressed to silence a sound or vibration indicating a call reception or to operate a reject. However, when a key other than the key having the rejection function is pressed, a call is connected and the touch pad 214 is inactivated so that the backlight of each touch key is turned off.

On the other hand, even if the slide 210 is raised to prevent unnecessary battery power consumption, the touch pad 214 is not kept activated, and as shown in FIG. 3E, a predetermined time after the slide 210 is raised is shown. If there is no key input, the touch pad 214 may be deactivated to turn off the backlight of each touch key. The predetermined time may be changed according to the user's convenience, and the slide 210 may be raised within a predetermined time. If a key input occurs even after the touch pad 214 is deactivated due to no key input, the touch pad 214 is immediately activated to turn on the backlight of each touch key.

In addition, as illustrated in FIG. 3F, the touch pad 214 may be activated for functions that can be operated even when the slide 210 is lowered, such as searching a phone book or checking a text message. For example, it is activated when there is a key input of a predetermined external key such as when the side key is pressed twice. Similarly, when receiving a call, the touch pad 214 may be activated according to a key input of a predetermined external key. In addition, when the slide 210 is lowered according to a key input of the predetermined external key and the touch pad 214 is activated, when there is a key input of the predetermined external key or there is no key input within a predetermined time, the touch panel Node 214 is deactivated.

On the other hand, when there is no key input of the predetermined external key while the slide 210 is lowered, the touch pad 214 may not be activated even if there is any event to prevent a malfunction.

In addition, activation or deactivation of the touch pad 214 may be controlled by the user's setting. For example, when the user selects the touch pad lock setting from the menu, in any case in which the slide 210 is closed, that is, Even if there is a key input of the predetermined external key, the touch pad 214 is not activated, and when the user selects the touch pad unlocking from the menu, the key input of the predetermined external key is input in a state in which the slide 210 is closed as described above. However, if there is a key input of a predetermined method, the touch pad 214 may be activated.

In addition, when the slide 210 is raised, a portion of the touch pad 214 is graphically displayed at a predetermined position of the display unit 212 as shown in FIG. 3G to guide the user of the function of each key of the activated touch pad 214. It can be shaped and displayed.

In the above description, the portable terminal is opened when the first body slides up, and the portable terminal is closed when the first body slides down. However, those skilled in the art have described that the portable terminal opens and slides up when the first body slides down. It will be readily understood that the present invention can be implemented even in a portable terminal in which the portable terminal is closed. That is, it can be summarized that activation / deactivation of the touch pad is performed by sliding of the first body.

4 is an external view illustrating an external appearance of a mobile terminal having a touch pad according to another embodiment of the present invention, and FIG. 5 is a touch in the mobile terminal having a touch pad according to another embodiment of the present invention. An example diagram showing an application example of the pad implementation.

As shown in FIG. 4, the mobile terminal 400 having a touch pad according to an embodiment of the present invention includes a main display unit 412 on one side, and a sub display unit 416 and a touch pad 414 on the other side. A first body (hereinafter referred to as a cover) 410 having a); And a second body (hereinafter referred to as a body) 420 having a keypad 422, and the cover 410 and the body 420 are fastened so that the cover 410 is folded and unfolded. It is to be closed and opened. The touch pad 414 is positioned at the bottom of the sub display unit 416.

The main display unit 412 is provided on one surface facing the body 420 of the cover 410, and the sub display unit 416 and the touch pad 414 are provided on the other surface facing the outside of the cover 410. Can be. The cover 410 and the body 420 are fastened through the hinge portion 430.

Although not shown, the body 420 may be provided with a battery and a camera on the back side. In addition, the cover 410 may be configured to include a camera.

As illustrated in FIG. 5A, the touch pad 414 is activated by a predetermined input when the cover 410 is folded and the portable terminal is closed or when the portable terminal is closed to operate a backlight of each touch key. When the light is emitted and the cover 410 is extended and the portable terminal is opened, the backlight is turned off. In the figure, the backlight light emission of each touch key is indicated by bold lines and letters, and the touch keys with backlight off are shown by thin lines and letters.

In order to prevent erroneous input of a touch key that may occur when a user touches the cover 410 and spreads the cover 410, the touch key input within a predetermined time when the cover 410 is opened is applied. The operation may not be performed.

In addition, as illustrated in FIG. 5B, the touch pad 414 activated when the portable terminal is closed or in the closed state is deactivated after a predetermined time and the backlight of each touch key is turned off.

In addition, as illustrated in FIG. 5C, when a long key type touch key input in which the key is pressed for a predetermined time or longer is detected in the inactive touch pad 414, the touch pad 414 is activated. The touch key for activating the touch pad 414 in the long key manner may be any one key such as a play button among the touch keys of the touch pad 414. Although described in the long key method in the drawings, it will be apparent to those skilled in the art that the same function may be performed by other key input methods such as a short key method or a double key method.

In addition, as shown in FIG. 5D, when there is a key input of a predetermined external key, such as when a side key is pressed twice in the inactive touch pad 414, the cover 410 such as an MP3 function is activated. Allows you to perform functions that can be operated even when is collapsed.

When the cover 410 is unfolded in a folded state, the touch pad 414 is inactivated to turn off the backlight of each touch key regardless of the previous state of the touch pad 414, and the touch key does not operate even if the user touches the touch pad.

In addition, activation or deactivation of the touch pad 414 may be controlled by the user's setting. For example, when the user selects the touch pad 414 lock setting from the menu or operates the lock in the locked state, the touch pad ( Regardless of the state of 414), the function is not performed because it is regarded as an inactive state, and when the user selects unlock from the menu or operates the lock in the open state, the touch pad 414 detects a user's key input and reacts. Done.

In addition, although the present invention has been described with reference to the embodiments illustrated in the drawings, this is merely exemplary and will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. . Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

As described above, the mobile terminal having a touch pad according to the present invention includes a touch pad in which the user's input is easy and eases hand fatigue or strain, and the present method is appropriately presented and implemented. As a result, the user's convenience is improved.

In addition, the mobile terminal having a touch pad according to the present invention has a touch pad on the exterior of the terminal instead of a unilateral key pressing method of the key pad, thereby providing visual pleasure to the user and miniaturizing the terminal.

Claims (47)

A display unit for providing various corresponding information and a user interface; A touch pad for touch key input from a user; It includes a control unit for controlling each unit and performing a corresponding function according to the input of the touch pad, The controller is configured to activate or deactivate the touch pad according to the state of the portable terminal or an external input. The method of claim 1, wherein the control unit And activating the touch pad when the portable terminal is opened, and deactivating the touch pad when the portable terminal is closed. The method of claim 2, wherein the control unit And a predetermined function key is input in the closed state of the portable terminal to activate the touch pad. The method of claim 2, wherein the opening and closing of the mobile terminal is Mobile terminal with a touch pad, characterized in that the slide up and down state. The method of claim 2, wherein the control unit The mobile terminal with a touch pad, characterized in that to deactivate the touch pad when a call is made. The method of claim 2, wherein the control unit When the call is connected according to the call reception, the mobile terminal having a touch pad, characterized in that for deactivating the touch pad. The method of claim 6, wherein the control unit And when the call is received and the portable terminal is opened, the touch pad is activated until the call is connected. The method of claim 2, wherein the control unit When the call connection is released, the mobile terminal with a touch pad, characterized in that for activating the touch pad. The method of claim 1, A mobile terminal having a touch pad, characterized in that it further comprises at least one sub display portion in addition to the display portion. The method of claim 9, wherein the touch pad The mobile terminal with a touch pad, characterized in that located on the lower end of the display unit or the sub display unit. The method of claim 1, wherein the display unit And a screen for guiding a function corresponding to each touch key of the touch pad. The method of claim 1, wherein the touch pad A portable terminal having a touch pad, characterized in that configured as a touch sensor to operate by detecting a user's finger touch. The method of claim 1, A transceiver for transmitting and receiving a signal; A storage unit for storing data; A voice output unit for outputting a voice signal; A voice input unit for receiving a voice signal; A mobile terminal with a touch pad, characterized in that it further comprises at least one of the keypad for input from the user. The method of claim 13, wherein the control unit And when the key input of the keypad or touch pad is not detected within a predetermined time while the portable terminal is open and the touch pad is activated, the touch pad is deactivated. The method of claim 13, wherein the control unit A mobile device having a touch pad, characterized in that the touch pad is activated when a key input of the keypad is detected while the touch pad which is in an activated state is not detected because a key input of the keypad or touch pad is not detected within a predetermined time. terminal. The method of claim 1, wherein the control unit A mobile terminal having a touch pad, characterized in that for activating only the touch keys necessary for the corresponding function of the plurality of touch keys provided in the touch pad. The method of claim 1, wherein the control unit When the portable terminal is opened, the touch pad can be deactivated and the touch pad can be activated when the portable terminal is closed. The method of claim 17, wherein the control unit And when a key input of the keypad or the touch pad is not detected within a predetermined time while the touch pad is activated, the touch pad is deactivated. The method of claim 18, wherein the control unit And a predetermined function key is input while the touch pad is inactivated to activate the touch pad. The method of claim 18, wherein the control unit And detecting a key input of a predetermined method while the touch pad is inactivated, activating the touch pad. The method of claim 18, wherein the control unit When a key input is detected while the touch pad is deactivated, the touch pad is guided to activate the touch key and the touch pad is activated when there is an input from a user who conforms to the guided method. Mobile terminal equipped. 18. The method of claim 17, wherein the opening and closing of the mobile terminal is A portable terminal having a touch pad, wherein the folder or flip is opened and closed. The method of claim 1, wherein the touch pad It is configured to include a touch key including a backlight or a self-emitting device, etc., depending on the activation / deactivation state, if the active state can be turned on a predetermined portion or all of the at least one touch key, if the deactivated touch keys The mobile terminal with a touch pad, characterized in that the light can be turned off. The method of claim 1, wherein the touch pad The mobile terminal with a touch pad, which may be invisible to the user when inactive. The method of claim 1, And a locking means for preventing the operation of the touch pad from being performed regardless of the state of the touch pad. The method of claim 25, wherein the locking means It includes a lock device and a lock menu, and when the lock state is disabled, it is impossible to detect the key input of the touch pad, and when the unlocked state, the mobile terminal having a touch pad, characterized in that to enable the detection of the key input of the touch pad. . A first body having a display unit and a touch pad; A second body with a keypad, The first body and the second body is fastened so that the mobile terminal is opened and closed in a sliding form with the first body, The touch pad is provided at the bottom of the display unit and is activated when the portable terminal is opened and deactivated when the portable terminal is closed. The method of claim 27, wherein the touch pad is A mobile terminal having a touch pad, which is activated when an external predetermined function key is keyed or a key input of a predetermined type touch key is activated while the portable terminal is closed. The method of claim 27, wherein the touch pad is The mobile terminal having a touch pad, which is deactivated when there is no key input of the key pad or the touch pad within a predetermined time in the activated state due to the opening of the portable terminal. The method of claim 29, wherein the touch pad is And a touch pad is activated when a key input of the keypad or the touch pad is detected in a deactivated state because there is no key input of the keypad or the touch pad within a predetermined time period. The method of claim 27, wherein the touch pad is Portable terminal with a touch pad, characterized in that when the call is deactivated. The method of claim 27, wherein the touch pad is The mobile terminal with a touch pad, characterized in that deactivated when the call is connected according to the call reception. The method of claim 32, wherein the touch pad And when the call is received and the portable terminal is opened, the touch pad is activated until the call is connected. The method of claim 27, wherein the touch pad is The mobile terminal with a touch pad, characterized in that activated when the call connection is released in a deactivated state according to the call connection. The method of claim 27, wherein the touch pad is And a plurality of touch keys, wherein only the touch keys used for performing each function in the activated state are activated and the remaining touch keys are deactivated. The method of claim 27, wherein the display unit And a screen for guiding a function corresponding to each touch key of the touch pad. The method of claim 27, wherein the touch pad is A mobile terminal having a touch pad, which may be made of the same material as that of the first body and may not be visible to the user when inactive. The method of claim 27, And a locking means for preventing the operation of the touch pad from being performed regardless of the state of the touch pad. The method of claim 38, wherein the locking means A mobile device having a touch pad including a lock device and a lock menu, which disables key input detection of the touch pad when locked, and enables key input detection of the touch pad when locked. terminal. A first body having a main display portion on one side facing the second body and a sub display portion and a touch pad on the other side facing outward; A second body with a keypad, The first body and the second body is fastened through the hinge portion to close and open the portable terminal in a form in which the first body is folded and unfolded, The touch pad is provided at the bottom of the sub display and is deactivated when the portable terminal is opened. The method of claim 40, wherein the touch pad is The mobile terminal with a touch pad, characterized in that if the key input of the touch key is not detected within a predetermined time in the activated state. The method of claim 41, wherein the touch pad is A mobile terminal having a touch pad, which is activated when an external predetermined function key or touch key is input in a deactivated state. 41. The display device of claim 40, wherein the sub display portion is And a guide screen for activating a touch key when there is a key input in a state in which the touch pad is inactivated. The method of claim 40, wherein the touch pad is And a plurality of touch keys, wherein only the touch keys used for performing each function in the activated state are activated and the remaining touch keys are deactivated. The method of claim 40, wherein the touch pad is A mobile terminal having a touch pad, which may be made of the same material as that of the first body and may not be visible to the user when inactive. The method of claim 40, And a locking means for preventing the operation of the touch pad from being performed regardless of the state of the touch pad. The method of claim 46, wherein the locking means A mobile device having a touch pad including a lock device and a lock menu, which disables key input detection of the touch pad when locked, and enables key input detection of the touch pad when locked. terminal.

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