KR20140036682A - Mobile terminal and method for controlling of the same - Google Patents

Abstract

Disclosed are a mobile terminal and a controlling method thereof. The mobile terminal according to one embodiment of the present invention includes a flexible display unit, a sensing unit, a speaker, and a control unit. Wherein, the control unit outputs a predetermined sound signal generated in the mobile terminal through the speaker by turning on the speaker if the display unit is bent and a contact between one side and the other side of the display unit is sensed through the sensing unit. [Reference numerals] (S110) Detect contact between one surface and the other surface of a display unit by bending the display unit; (S120) Enter a speaker phone mode; (S130) Output a sound signal generated in a mobile terminal to a speaker

Description

TECHNICAL FIELD [0001] The present invention relates to a mobile terminal and a control method of the mobile terminal,

The present invention relates to a mobile terminal having a flexible display and a control method of the mobile terminal.

Recently, with the development of materials, driving technologies, process technologies, and the like of display devices, thinning of display devices has been performed, and research on flexible display devices has been conducted. Since the flexible display device is configured using a flexible plastic substrate or the like, the flexible display device can bend or fold the display device in a desired shape.

The flexible display device is implemented on a thin substrate such as plastic, so that it is not damaged even when folded or rolled like a paper. Currently, flexible displays are implemented by adopting organic light emitting diodes and liquid crystal display devices that can be made thinner than 1 mm.

An object of the present invention is to provide a mobile terminal and a control method of the mobile terminal which can change the sound output mode as the flexible display is bent.

In addition, an object of the present invention, by connecting the flexible display to at least one external electronic device through a short-range communication module, a speaker that can output the sound output from the external electronic device as the flexible display is bent The present invention provides a mobile terminal capable of operating and a control method of the mobile terminal.

According to an aspect of the present invention, a mobile terminal includes a flexible display unit and a sensing unit; speaker; And when the display unit is bent to detect contact between one side and the other side of the display unit through the sensing unit, the speaker is turned on to output a predetermined sound signal generated by the mobile terminal through the speaker. The control unit may include.

The display unit may include fixing means on one side and the other side, and the fixing means may include a magnetic body provided on at least a portion of the one side and the other side, respectively.

The display unit, one side of the surface and the other side of the back may be fixed through the magnetic material.

The display unit may be bent to form a cylindrical shape as it is fixed through the magnetic material.

The acoustic signal may be an acoustic signal associated with any one of music file playback, call call connection, or voice recording.

The controller may control to supply power to the display unit when sensing the contact through the sensing unit in a state where power is not supplied to the display unit.

The controller is configured to display at least one application related to an output of a sound signal on the display unit, and when any one of the at least one application is selected, turn on the speaker and perform a sound related to execution of the selected application. A signal may be output through the speaker.

The controller may execute the event or the application while the speaker is in an on state when receiving a predetermined event or detecting a contact of the display unit when executing a predetermined application.

The speaker may be a thin film type speaker, and the thin film type speaker may include a display unit provided to one side and the other side when the display unit is bent to output sound toward an outer surface of the display unit. Can be.

The mobile terminal may further include a microphone provided on an inner surface of the display unit to be activated.

The display unit may include a plurality of thin films formed on the substrate for displaying an image; And the thin film type speaker attached to an opposite surface of the substrate on which the thin film is formed with the substrate interposed therebetween.

The mobile terminal includes a near field communication module, and when the display unit is bent to couple one side to the other side of the display unit, the controller may perform data communication with at least one external device through the near field communication module. You can switch to the mode to run.

The short range communication module may include a Bluetooth module, and when the mobile terminal is paired with the at least one external device through the Bluetooth module, the controller may be configured to transmit a sound signal output from the mobile terminal to the mobile terminal and the mobile terminal. The output may be controlled to be distributed to at least one external device.

A control method of a mobile terminal according to another embodiment of the present invention is a control method of a mobile terminal having a flexible display unit, wherein the display unit is bent to contact one side and the other side of the display unit. Detecting; And when the contact is detected, turning on a speaker and outputting a predetermined sound signal generated by the mobile terminal through the speaker.

The details of other embodiments are included in the detailed description and drawings.

According to a mobile terminal and a method of controlling the mobile terminal according to an embodiment of the present invention, when the flexible display is bent and one boundary of the display is combined with another boundary, the mobile terminal and the mobile terminal are switched to the speaker mode according to the physical shape of the display. The sound output mode of the mobile terminal can be controlled.

In addition, according to an embodiment of the present invention, as the display unit is bent, the front of the display unit may be used as a speaker.

In addition, according to an embodiment of the present invention, the display unit is bent and connected to at least one external electronic device having a cylindrical shape by Bluetooth, thereby distributing the output of the sound signal between the at least one device connected by Bluetooth, Stereo sound effect can be exhibited.

In addition, according to an embodiment of the present invention, as the at least one external electronic device is connected through the short range communication module, the size of the volume output from one device may be as large as the number of external electronic devices connected through the short range communication module. Can increase in proportion.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention.
FIG. 2 is a diagram for describing flexible display characteristics associated with one embodiment of the present invention. FIG.
FIG. 3 is a diagram for describing characteristics of a boundary surface of the flexible display unit illustrated in FIG. 2.
4 is a diagram illustrating a state in which the interface between the boundary surfaces of the flexible display unit illustrated in FIG. 3 is coupled.
5 is a flowchart illustrating a control method of a mobile terminal according to an embodiment of the present invention.
FIG. 6 is a flowchart for explaining the control method of the mobile terminal shown in FIG. 5 in more detail.
7 to 9 are diagrams for describing the exemplary embodiment shown in FIGS. 5 to 6.
FIG. 10 is a diagram for describing a configuration of the display unit when a flexible display of a mobile terminal according to an embodiment of the present invention is used as a thin film speaker.
11 is a flowchart illustrating a control method of a mobile terminal according to an embodiment of the present invention.
12 to 13 are diagrams for describing the exemplary embodiment of FIG. 11.
14 is a diagram illustrating an example in which a plurality of mobile terminals are connected in a vertical direction and used as a speaker.
15 is a view for explaining an example of using a flexible display of a mobile terminal according to an embodiment of the present invention.

The foregoing objects, features and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Like numbers refer to like elements throughout. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

Hereinafter, a mobile terminal according to the present invention will be described in detail with reference to the drawings. The suffix "module" and "part" for constituent elements used in the following description are given or mixed in consideration only of ease of specification, and do not have their own standing or distinguishing meaning or role.

The mobile terminal described in this specification may include a mobile phone, a smart phone, a notebook computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player), a navigation terminal and the like.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention.

The mobile terminal 100 includes a wireless communication unit 110, an audio / video input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory unit 160, An interface unit 170, a control unit 180, a power supply unit 190, and the like. The components shown in Fig. 1 are not essential, and a mobile terminal having more or fewer components may be implemented.

Hereinafter, the components will be described in order.

The wireless communication unit 110 may include one or more modules for enabling wireless communication between the mobile terminal 100 and the wireless communication system or between the mobile terminal 100 and the network in which the mobile terminal 100 is located. For example, the wireless communication unit 110 may include a broadcast receiving module 111, a mobile communication module 112, a wireless Internet module 113, a short range communication module 114, and a location information module 115 .

The broadcast receiving module 111 receives a broadcast signal and / or broadcast related information from an external broadcast management server through a broadcast channel.

The broadcast channel may include a satellite channel and a terrestrial channel. The broadcast management server may refer to a server for generating and transmitting broadcast signals and / or broadcast related information, or a server for receiving broadcast signals and / or broadcast related information generated by the broadcast management server and transmitting the generated broadcast signals and / or broadcast related information. The broadcast signal may include a TV broadcast signal, a radio broadcast signal, a data broadcast signal, and a broadcast signal in which a data broadcast signal is combined with a TV broadcast signal or a radio broadcast signal.

The broadcast-related information may refer to a broadcast channel, a broadcast program, or information related to a broadcast service provider. The broadcast-related information may also be provided through a mobile communication network. In this case, it may be received by the mobile communication module 112.

The broadcast-related information may exist in various forms. For example, an EPG (Electronic Program Guide) of DMB (Digital Multimedia Broadcasting) or an ESG (Electronic Service Guide) of Digital Video Broadcast-Handheld (DVB-H).

The broadcast receiving module 111 receives broadcasting signals using various broadcasting systems. In particular, the broadcasting receiving module 111 may be a Digital Multimedia Broadcasting-Terrestrial (DMB-T), a Digital Multimedia Broadcasting-Satellite (DMB-S) Only Digital Broadcast-Handheld (DVB-H), Integrated Services Digital Broadcast-Terrestrial (ISDB-T), and the like. Of course, the broadcast receiving module 111 may be adapted to other broadcasting systems that provide broadcast signals as well as the digital broadcasting system described above.

The broadcast signal and / or broadcast related information received through the broadcast receiving module 111 may be stored in the memory unit 160.

The mobile communication module 112 transmits and receives radio signals to at least one of a base station, an external terminal, and a server on a mobile communication network. The wireless signal may include various types of data depending on a voice call signal, a video call signal or a text / multimedia message transmission / reception.

The wireless Internet module 113 refers to a module for wireless Internet access, and the wireless Internet module 113 can be embedded in the mobile terminal 100 or externally. WLAN (Wi-Fi), Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access) and the like can be used as wireless Internet technologies.

The short-range communication module 114 refers to a module for short-range communication. Bluetooth, radio frequency identification (RFID), infrared data association (IrDA), ultra wideband (UWB), ZigBee, and the like can be used as the short distance communication technology.

The location information module 115 is a module for confirming or obtaining the location of the mobile terminal. A typical example of the location information module is a GPS (Global Position System) module. According to the current technology, the GPS module 115 calculates information on a distance (distance) from three or more satellites to one point (entity), information on the time when the distance information is measured, , Three-dimensional position information according to latitude, longitude, and altitude of one point (individual) in one hour can be calculated. Further, a method of calculating position and time information using three satellites and correcting the error of the calculated position and time information using another satellite is also used. The GPS module 115 continues to calculate the current position in real time and uses it to calculate speed information.

Referring to FIG. 1, an A / V (Audio / Video) input unit 120 is for inputting an audio signal or a video signal, and may include a camera 121 and a microphone 122. The camera 121 processes image frames such as still images or moving images obtained by the image sensor in the video communication mode or the photographing mode. The processed image frame can be displayed on the display unit 151. [

The image frame processed by the camera 121 may be stored in the memory unit 160 or may be transmitted to the outside through the wireless communication unit 110. [ The camera 121 may be equipped with two or more cameras according to the configuration of the terminal.

The microphone 122 receives an external sound signal through a microphone in a communication mode, a recording mode, a voice recognition mode, or the like, and processes it as electrical voice data. The processed voice data can be converted into a form that can be transmitted to the mobile communication base station through the mobile communication module 112 when the voice data is in the call mode, and output. Various noise reduction algorithms may be implemented in the microphone 122 to remove noise generated in receiving an external sound signal.

The user input unit 130 generates input data for a user to control the operation of the terminal. The user input unit 130 may include a key pad dome switch, a touch pad (static pressure / capacitance), a jog wheel, a jog switch, and the like.

The sensing unit 140 senses the current state of the mobile terminal 100 such as the open / close state of the mobile terminal 100, the position of the mobile terminal 100, the presence or absence of user contact, the orientation of the mobile terminal, And generates a sensing signal for controlling the operation of the mobile terminal 100. For example, when the mobile terminal 100 is in the form of a slide phone, it may sense whether the slide phone is opened or closed. In addition, it may be responsible for a sensing function related to whether the power supply unit 190 is powered on, whether the interface unit 170 is connected to an external device, and the like. Meanwhile, the sensing unit 140 may include a proximity sensor 141.

The output unit 150 may include a display unit 151, an audio output module 152, an alarm unit 153, and a haptic module 154, for example, for generating output related to visual, auditory, have.

The display unit 151 displays and outputs information processed by the mobile terminal 100. For example, when the mobile terminal is in the call mode, a UI (User Interface) or a GUI (Graphic User Interface) associated with a call is displayed. When the mobile terminal 100 is in the video communication mode or the photographing mode, the photographed and / or received video or UI and GUI are displayed.

The display unit 151 may be a liquid crystal display, a thin film transistor-liquid crystal display, an organic light-emitting diode, a flexible display, a three-dimensional display 3D display).

Some of these displays may be transparent or light transmissive so that they can be seen through. This may be referred to as a transparent display. A typical example of the transparent display is a transparent LCD or the like. The rear structure of the display unit 151 may also be of a light transmission type. With this structure, the user can see an object located behind the terminal body through the area occupied by the display unit 151 of the terminal body.

There may be two or more display units 151 according to the embodiment of the mobile terminal 100. For example, in the mobile terminal 100, a plurality of display portions may be spaced apart from one another, or may be disposed integrally with one another, and may be disposed on different surfaces, respectively.

The display unit 151 is connected to a display unit 151 and a sensor for sensing a touch operation (hereinafter, referred to as 'touch sensor') having a mutual layer structure It can also be used as an input device. The touch sensor may have the form of, for example, a touch film, a touch sheet, a touch pad, or the like.

The touch sensor may be configured to convert a change in a pressure applied to a specific portion of the display unit 151 or a capacitance generated in a specific portion of the display unit 151 into an electrical input signal. The touch sensor can be configured to detect not only the position and area to be touched but also the pressure at the time of touch.

If there is a touch input to the touch sensor, the corresponding signal (s) is sent to the touch controller. The touch controller processes the signal (s) and transmits the corresponding data to the controller 180. As a result, the controller 180 can know which area of the display unit 151 is touched.

Referring to FIG. 1, a proximity sensor 141 may be disposed in an inner region of the mobile terminal or in the vicinity of the touch screen, which is surrounded by the touch screen. The proximity sensor refers to a sensor that detects the presence or absence of an object approaching a predetermined detection surface or a nearby object without mechanical contact using the force of an electromagnetic field or infrared rays. The proximity sensor has a longer life span than the contact sensor and its utilization is also high.

Examples of the proximity sensor include a transmission photoelectric sensor, a direct reflection photoelectric sensor, a mirror reflection photoelectric sensor, a high frequency oscillation proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, and an infrared proximity sensor.

And to detect the proximity of the pointer by the change of the electric field along the proximity of the pointer when the touch screen is electrostatic. In this case, the touch screen (touch sensor) may be classified as a proximity sensor.

Hereinafter, for convenience of explanation, the act of recognizing that the pointer is positioned on the touch screen while the pointer is not in contact with the touch screen is referred to as "proximity touch & The act of actually touching the pointer on the screen is called "contact touch. &Quot; The position where the pointer is proximately touched on the touch screen means a position where the pointer is vertically corresponding to the touch screen when the pointer is touched.

The proximity sensor detects a proximity touch and a proximity touch pattern (e.g., a proximity touch distance, a proximity touch direction, a proximity touch speed, a proximity touch time, a proximity touch position, a proximity touch movement state, and the like). Information corresponding to the detected proximity touch operation and the proximity touch pattern may be output on the touch screen.

The audio output module 152 may output audio data received from the wireless communication unit 110 or stored in the memory unit 160 in a call signal reception mode, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, The sound output module 152 outputs an acoustic signal related to a function (e.g., a call signal reception sound, a message reception sound, etc.) performed in the mobile terminal 100. The audio output module 152 may include a receiver, a speaker, a buzzer, and the like. Also, the sound output module 152 may output sound through the earphone jack 116. The user can connect the earphone to the earphone jack 116 to hear the sound output.

The alarm unit 153 outputs a signal for notifying the occurrence of an event of the mobile terminal 100. Examples of events that occur in the mobile terminal include call signal reception, message reception, key signal input, touch input, and the like. The alarm unit 153 may output a signal for notifying the occurrence of an event in a form other than the video signal or the audio signal, for example, vibration. The video signal or the audio signal may also be output through the display unit 151 or the audio output module 152.

The haptic module 154 generates various tactile effects that the user can feel. A typical example of the haptic effect generated by the haptic module 154 is vibration. The intensity and pattern of the vibration generated by the hit module 154 can be controlled. For example, different vibrations may be synthesized and output or sequentially output.

In addition to the vibration, the haptic module 154 may be configured to perform various functions such as an effect of stimulation by a pin arrangement vertically moving with respect to a contact skin surface, an effect of stimulation by air spraying force or suction force through a jet opening or a suction opening, A variety of tactile effects such as an effect of stimulation through contact of an electrode, an effect of stimulation by an electrostatic force, and an effect of reproducing a cold sensation using a heat absorbing or exothermic element can be generated.

The haptic module 154 can be implemented not only to transmit the tactile effect through the direct contact but also to feel the tactile effect through the muscles of the user's finger or arm. The haptic module 154 may include two or more haptic modules 154 according to the configuration of the portable terminal 100.

The memory unit 160 may store a program for the operation of the controller 180 and temporarily store input / output data (e.g., a phone book, a message, a still image, a moving picture, etc.). The memory unit 160 may store data related to vibration and sound of various patterns outputted when a touch is input on the touch screen.

The memory unit 160 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory) (Random Access Memory), SRAM (Static Random Access Memory), ROM (Read Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM A disk, and / or an optical disk. The mobile terminal 100 may operate in association with a web storage that performs a storage function of the memory unit 160 on the Internet.

The interface unit 170 serves as a path for communication with all external devices connected to the mobile terminal 100. The interface unit 170 receives data from an external device or receives power from the external device to transfer the data to each component in the mobile terminal 100 or to transmit data in the mobile terminal 100 to an external device. For example, a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, a port for connecting a device having an identification module, an audio I / O port, A video input / output (I / O) port, an earphone port, and the like may be included in the interface unit 170.

The identification module is a chip for storing various information for authenticating the use right of the mobile terminal 100 and includes a user identification module (UIM), a subscriber identity module (SIM), a general user authentication module A Universal Subscriber Identity Module (USIM), and the like. Devices with identification modules (hereinafter referred to as "identification devices") can be manufactured in a smart card format. Accordingly, the identification device can be connected to the terminal 100 through the port.

When the mobile terminal 100 is connected to an external cradle, the interface unit may be a path through which power from the cradle is supplied to the mobile terminal 100, or various command signals input by the user to the cradle may be transmitted It can be a passage to be transmitted to the terminal. The various command signals or the power source input from the cradle may be operated as a signal for recognizing that the mobile terminal is correctly mounted on the cradle.

The control unit 180 typically controls the overall operation of the mobile terminal. For example, voice communication, data communication, video communication, and the like. The control unit 180 may include a multimedia module 181 for multimedia playback. The multimedia module 181 may be implemented in the control unit 180 or may be implemented separately from the control unit 180. [

The controller 180 may perform a pattern recognition process for recognizing handwriting input or drawing input performed on the touch screen as characters and images, respectively.

The power supply unit 190 receives an external power source and an internal power source under the control of the controller 180 to supply power for operation of each component.

The various embodiments described herein may be embodied in a recording medium readable by a computer or similar device using, for example, software, hardware, or a combination thereof.

According to a hardware implementation, the embodiments described herein may be implemented as application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays May be implemented using at least one of processors, controllers, micro-controllers, microprocessors, and electrical units for performing functions. In some cases, And may be implemented by the control unit 180.

In a software implementation, embodiments such as procedures or functions may be implemented with separate software modules that allow at least one function or operation to be performed. The software code may be implemented by a software application written in a suitable programming language. In addition, the software code may be stored in the memory unit 160 and executed by the controller 180.

Hereinafter, embodiments of the present invention will be described.

In the present invention, the display unit 151 is assumed to be the touch screen 151 for convenience of explanation. As described above, the touch screen 151 can perform both the information display function and the information input function. However, it should be clearly understood that the present invention is not limited thereto. Also, the touch mentioned in this document can include both touch and proximity touch.

FIG. 2 is a diagram for describing flexible display characteristics associated with one embodiment of the present invention. FIG.

Referring to FIG. 2, the mobile terminal 100 includes a flexible display unit 151.

The flexible display unit 151 may be implemented in various flexible forms such as bendable, foldable, rollable, or the like. In order to describe one embodiment of the present invention, it is assumed that the flexible display unit 151 is a bendable display unit.

Referring to FIG. 2, as the display unit 151 is bent and coupled to one side and the other side of the display unit 151, it may finally have a cylindrical shape. When the display unit 151 is bent to form a cylindrical shape, the display unit 151 may start predetermined information in all directions through the display constituting the cylindrical side surface.

FIG. 3 is a diagram for describing characteristics of a boundary surface of the flexible display unit illustrated in FIG. 2.

Referring to FIG. 3, in order to configure the cylindrical display unit 151 illustrated in FIG. 2, fixing means may be provided on one side and the other side of the display unit 151.

For example, fixing means may be provided on one boundary side 151A of the display unit 151 and the other boundary side 151B. Each boundary side 151A and 151B of the display unit 151 may be coupled by bending the display unit 151 to be in contact with each other.

In addition, for example, fixing means may be provided on one side of the front surface and one side of the rear surface of the display unit 151, respectively. The fixing means may be provided with a predetermined fixing means on at least a portion of one side of the front side and at least a portion of the one side of the rear surface of the display unit 151.

The fixing means may include a magnetic substance (magnetic material) or a magnet.

In addition, the controller 180 of the mobile terminal 100 may maintain a cylindrical shape while one side and the other side of the display unit 151 are coupled to each other through the region including the magnetic material. For example, referring to FIG. 3, when one side and the other side of the display unit 151 are bent in opposite directions, one side 151B of the display unit 151 contacts the other side 151A of the display unit. Can be combined as much as possible.

4 is a diagram illustrating a state in which the interface between the boundary surfaces of the flexible display unit illustrated in FIG. 3 is coupled.

Referring to FIG. 4, when the flexible display unit 151 is bent to form a cylindrical shape, the controller 180 of the mobile terminal 100 includes at least one item (for example, the display unit 151). For example, an application icon, etc.) can be displayed. The display unit 151 may include a substrate (eg, flexible plastic, metal foil, thin glass, etc.), a flexible display unit (eg, EL, electrophoretic dispaly, EPD (Electrochromic display), and LCD (Liquid). Crystal Display), AMOLCD, AMOLED, a driver for driving the flexible display unit (eg, a-si TFT, Low Temperature Poly Silicon (LTPS) TFT, OTFT (Organic TFT), Oxide TFT, etc.) And a protective film.

Meanwhile, the mobile terminal 100 may further include a sensing unit 140 that detects contact between the one side and the other side when the side and the other side of the display unit 151 are in contact with each other. Can be.

The sensing unit 140 may include at least one of a capacitive sensor, a resistive film sensor, and a flexible band sensor.

The capacitive sensor is a sensing method using a capacitive coupling effect, and may be made of highly conductive glass called indium tin oxide. The capacitive sensor is positioned at the edge of the flexible display unit 151, and the current flows through the flexible display unit 151 as a whole, thereby detecting a change in current.

In the resistive film sensor, a gap is formed between the upper layer ITO film and the lower layer ITO film so that the gap is not in contact with each other. When the upper layer ITP film and the lower layer ITO film are contacted by pressure, a change in resistance value may be detected.

The flexible bend sensor is a sensor that can be bent as a sensor that can be bent by itself, and senses a resistance value that varies in proportion to the degree of bending. The flexible band sensor can include a carbon resistive element in the flexible substrate. The flexible band sensor has a thin strip shape and may be attached to the rear surface of the flexible display unit 151 in a lattice shape.

Hereinafter, various embodiments of operating in the speaker mode according to the shape of the mobile terminal and the flexible display unit of the mobile terminal described with reference to FIGS. 1 to 4 will be described.

5 is a flowchart illustrating a control method of a mobile terminal according to an embodiment of the present invention.

Referring to FIG. 5, the controller 180 of the mobile terminal 100 may detect contact between one side and the other side of the display unit 151 by bending the flexible display unit 151 ( S110). Here, the sensing unit 140 may detect the contact.

When the display unit 151 is bent to form a cylindrical shape, the controller 180 may enter a speaker phone mode (S120).

Then, the controller 180 can output the sound of the mobile terminal 100 through the speaker 152 (sound output module) (S130).

FIG. 6 is a flowchart for explaining the control method of the mobile terminal shown in FIG. 5 in more detail.

According to an embodiment of the present invention, when a predetermined event occurs or a predetermined event is executed, when the flexible display unit 151 is bent to form a cylindrical shape, in executing the predetermined event, The speaker mode may be entered.

Referring to FIG. 6, the controller 180 may determine whether the display unit 151 of the mobile terminal 100 is in a flat state. Herein, the flat state is referred to as a flat state when the flexible display unit 151 is in a fully extended state.

In addition, the flexible display unit 151 is bent, one side and the other side is coupled, and the state forming a cylindrical shape will be referred to as a bending state.

Meanwhile, the flexible display unit 151 may have a configuration in which a flexible panel is provided in one body, but the present invention is not limited thereto. For example, a flexible panel may be provided in each of the two bodies, and the flexible display may be implemented as the body is folded.

The controller 180 detects that a predetermined event occurs (S220). The predetermined event may include an event in which the flexible display unit 151 is newly generated in a flat state or an event that is already executed.

For example, the predetermined event may include music playback, a call call connection request, reception of a call call connection request signal, a call recording file playback, voice recording in a voice input mode, and the like.

The controller 180 detects through the sensing unit 140 that the flexible display unit 151 is bent and is in a bending state (S230: YES), while turning on a speaker while turning on the speaker (S230). 100 may be controlled to enter the speaker phone mode (S240).

In the speaker phone mode, a sound signal related to the predetermined event may be output through the speaker.

On the other hand, when the flexible display unit 151 returns to the bending state (S250: YES), the controller 180 may turn off the speaker and release the speaker phone mode (S260).

When the sensing unit 140 detects that contact of one side and the other side of the display unit 151 is released, the controller 180 may turn off the speaker. That is, when the bending state of the display unit 151 returns to the flat state, the speaker may be turned off. At this time, the previously running application may be terminated. For example, when music is played through a speaker in the bending state, when the display unit 151 returns to a flat state, the music being played may be terminated.

7 to 9 are diagrams for describing the exemplary embodiment shown in FIGS. 5 to 6.

FIG. 7 illustrates a case in which the predetermined event is a call call connection request.

Referring to FIG. 7, the controller 180 may receive a call call connection request signal while the display unit 151 is in a flat state. After the call connection request signal is received, when the display unit 151 is switched to the bending state, the controller 180 can connect the call and at the same time turn on the speaker.

Also, for example, when the display unit 151 is switched to the bending state after the call call connection request signal is received, the controller 180 continuously receives the call call connection request signal and turns on only the speaker. (on)

8 illustrates a case in which the display unit 151 is switched to the bending state in a state where power is not supplied to the display unit 151 in a flat state.

Referring to FIG. 8, in the mobile terminal 100, when the display unit 151 is in a flat state and the power supplied to the display unit 151 is turned off, the display unit 151 is switched to a bending state. In this case, the controller 180 can supply power to the display unit 151. As the display unit 151 is switched to the bending state, the controller 180 may display at least one application associated with a sound output on the display unit 151.

At least one application related to the sound output may include an application related to music playback, a video call related application, a voice recording related application, a recorded call list related application, and the like.

When any one of the at least one application is selected, the controller 180 can output a sound signal according to the execution of the selected application through the speaker.

9 illustrates a case where the display unit 151 is switched to the bending state after the camera application is executed in the flat state.

Referring to FIG. 9, as the camera application is executed, the controller 180 may display a preview image input through the camera 121 on the display unit 151 in a flat state.

When the display unit 151 is switched to the bending state, the controller 180 can switch to a video recording mode and turn on the speaker. Meanwhile, the controller 180 may turn on the microphone to record the user's spoken voice while recording the preview images which are started on the display unit 151 in the bending state through the camera 121.

Meanwhile, in the above-described embodiments, the display unit 151 in a bending state may operate as a speaker. That is, the display unit 151 may include a thin film speaker. Therefore, the display unit 151 in the bending state may operate as a speaker that is directed in omnidirection.

FIG. 10 is a diagram for describing a configuration of the display unit when a flexible display of a mobile terminal according to an embodiment of the present invention is used as a thin film speaker.

FIG. 10A is an exploded perspective view illustrating a flexible display unit having a thin film speaker, and FIG. 10B is an example of the display panel 151a in FIG. 10A, in which an EL panel is applied. It is a figure which shows an example.

Referring to FIGS. 10A to 10B, the display unit 151 of the mobile terminal 100 according to an embodiment of the present invention may include a display panel 210 embedded in a display window displaying a screen or an image. And a thin film speaker 220 attached to a surface opposite to a surface on which a plurality of thin films for displaying an image are formed on the substrate 10 of the display panel 110, and formed on the upper surface of the thin film speaker 220. The polarizer 130 may be provided.

The thin-film speaker 120 is described in Gabor Harsanyi, "Polymer Films in Sensor Applications", Technomic Publishing Co. As described in Lancaster USA 1995., the surface of the vinyl isofluoride film at room temperature is converted into a piezoelectric plastic capable of converting an electrical signal to pressure using plasma using polyvinylidene fluoride (PVDF). It is possible to use a 'roll-up speaker' that uses the principle that the surface is converted to hydrophilic water-friendly and the electrode is converted into pressure and the electric signal is immediately converted into pressure.

The thin film speaker 220 may be attached to the rear surface of the substrate 10 through a tape or an adhesive, or may be attached using a bolt and a nut with a separate support frame. However, the method of attaching the thin film speaker 220 is not limited to the above method,

All possible methods may be included within the scope of minimizing the influence on the image display provided by the panel 210.

On the other hand, the polarizing plate 230 is made of a material that allows the linear polarization component to pass through, and removes the circular polarization component. The polarizer 230 is formed by depositing on the upper surface of the thin film speaker 220. The display panel 210 may be an EL panel or an LCD panel. In the case of the EL panel, as shown in FIG. 10B, the display panel 210 is formed to cross each other with the organic light emitting layer 210 interposed therebetween. And an organic EL array 215 including an anode electrode 204, a cathode electrode 212, and the like, and a cap 228 for packaging the organic EL array 215.

As such, the thin film type speaker 220 is interposed between the substrate 10 of the display panel 210 and the polarizer 230 to reduce the space occupied by the speaker in the conventional mobile phone, thereby reducing the volume of the mobile phone. Can be. In addition, since the thin-film speaker 220 is very thin, when the mobile phone is used in a mobile phone or the like, the mobile phone can be greatly reduced in size.

11 is a flowchart illustrating a control method of a mobile terminal according to an embodiment of the present invention. 12 to 13 are diagrams for describing the exemplary embodiment of FIG. 11.

Referring to FIG. 11, when the display unit 151 is switched from the flat state to the bending state (S310), the controller 180 displays a list of at least one external device that can be paired to the display unit 151 in the bending state. It may be displayed (S320).

In addition, when at least one external device is selected from the list of at least one external device that can be paired (S330), the controller 180 uses the selected at least one external device and the mobile terminal 100 as a short range communication module (FIG. 1). The pairing operation may be performed through step 114).

The short range communication module may include a Bluetooth module, and according to an embodiment of the present invention, the mobile terminal 100 performs a Bluetooth pairing operation with at least one external electronic device according to whether the display unit 151 is bent. It may enter a mode for performing the operation.

Referring to FIG. 12, the mobile terminal 100 may configure a short range communication system with at least one external electronic device (A, B, C).

As the display unit 151 in the flat state is switched to the bending state, the controller 180 of the mobile terminal 100 is blue with the mobile terminal 100 among the at least one external electronic device A, B, or C. The list 310 including at least one external electronic device (A, B, ...) capable of performing the pairing operation may be displayed on the display unit 151 in the bending state.

On the other hand, Figure 13, as the mobile terminal 100 is switched from the flat state to the bending state, in the state connected to the at least one external electronic device (B) by Bluetooth, the external electronic device (B) currently playing the sound signal ) Shows an example of sharing.

Here, the mobile terminal 100 outputs a part of the sound signal through the speaker 152 (sound output module) of the mobile terminal 100, and the other part outputs through the speaker of the paired external electronic device B. Can be controlled.

Meanwhile, according to an embodiment of the present invention, an environment in which the display unit 151 of the mobile terminal 100 performs data communication through a short range communication module with a first external electronic device and a second external electronic device in a bending state. Assume In this case, the mobile terminal 100, the first external electronic device, and the second external electronic device may each be any one of the mobile terminal 100, the first external electronic device, or the second external electronic device through a sound output module (speaker). By distributing and outputting a sound signal output from the device of the 3D sound effect can be realized.

In this case, when the mobile terminal 100 of the mobile terminal 100, the first external electronic device, or the second external electronic device receives a call call connection request signal from the outside, the mobile terminal 100 includes: The output of the sound signal may be stopped, and the sound signal may be distributed and output from the first external electronic device and the second external electronic device. The criterion by which the sound signal is distributed to the two devices may be set by a user. On the other hand, when the call call connection is terminated in the mobile terminal 100, the mobile terminal 100, by a predetermined control signal, the original operation of dispersing the sound signal with the first and second external electronic device Can be controlled to return.

14 is a diagram illustrating an example in which a plurality of mobile terminals are connected in a vertical direction and used as a speaker.

Referring to FIG. 14, a display unit 151 of a mobile terminal 100 is in a bending state, and a first external electronic device and a first external device connected to the mobile terminal 100 through a short range communication module (114 in FIG. 1). 2 The display unit of the external electronic device also achieves the same bending state as the mobile terminal 100, and the mobile terminal 100, the first external electronic device 201, and the second external electronic device 202 are sequentially connected in the vertical direction. In this case, the controller 180 of the mobile terminal 100 may increase the size Vc of the volume output through the speakers 152 and S1 of the mobile terminal 100.

The controller 180 may use the first external electronic devices 201 and S2 and the second external electronic devices 202 and S3 in controlling the volume of the sound signal output from the mobile terminal 100. have. That is, the size Vm of the maximum volume of the speaker S1 of the mobile terminal 100 can be increased by using the first external electronic devices 201 and S2 and the second external electronic devices 202 and S3. .

15 is a view for explaining an example of using a flexible display of a mobile terminal according to an embodiment of the present invention.

Referring to FIG. 15, the sensing unit 140 of the mobile terminal 100 may include a G sensor (gravity sensor, gyro sensor). While the display unit 151 of the mobile terminal 100 forms a cylindrical shape in a bending state, and a predetermined item is displayed on the display unit 151, the cylindrical mobile terminal 100 moves in a predetermined direction. When rotating, the G sensor may detect the rotation.

The controller 180 may detect the sensing signal of the G sensor and control the relative position of the predetermined item displayed on the display unit 151 to face the user's gaze. For example, the position of the predetermined control item 30 with respect to the bending part C may be maintained in spite of the rotation of the mobile terminal 100.

The above-described method of controlling a mobile terminal according to the present invention can be provided by being recorded in a computer-readable recording medium as a program for execution in a computer.

The control method of the mobile terminal according to the present invention can be executed through software. When executed in software, the constituent means of the present invention are code segments that perform the necessary tasks. The program or code segments may be stored in a processor readable medium or transmitted by a computer data signal coupled with a carrier wave in a transmission medium or a communication network.

A computer-readable recording medium includes all kinds of recording apparatuses in which data that can be read by a computer system is stored. Examples of the computer-readable recording device include a ROM, a RAM, a CD-ROM, a DVD 占 ROM, a DVD-RAM, a magnetic tape, a floppy disk, a hard disk, The computer-readable recording medium may also be distributed to networked computer devices so that computer readable code can be stored and executed in a distributed manner.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. The present invention is not limited to the drawings. In addition, the embodiments described in this document can be applied to not only the present invention, but also all or some of the embodiments may be selectively combined so that various modifications can be made.

100: mobile terminal 151: display unit (touch screen)
180:

Claims (14)

In a mobile terminal having a flexible display unit,
Sensing unit;
speaker; And
When the display unit is bent to detect contact between one side and the other side of the display unit through the sensing unit, turning on the speaker and outputting a predetermined sound signal generated by the mobile terminal through the speaker. Control unit;
. The method of claim 1,
The display unit includes:
And a fixing means on each of the one side and the other side, wherein the fixing means comprises a magnetic body provided on at least part of the one side and the other side, respectively. 3. The method of claim 2,
The display unit includes:
The mobile terminal, characterized in that one side of the surface and the other side of the back is fixed through the magnetic material. 3. The method of claim 2,
The display unit includes:
The mobile terminal, characterized in that the bent to form a cylindrical shape as fixed through the magnetic material. The method of claim 1,
The sound signal,
And a sound signal associated with any one of music file playback, call call connection, or voice recording. The method of claim 1,
The control unit,
When the power is not supplied to the display unit, the mobile terminal, characterized in that the control to supply power to the display unit, when detecting the touch through the sensing unit. The method according to claim 6,
The control unit,
Display at least one application associated with an output of an acoustic signal on the display, and if any one of the at least one application is selected, turn on the speaker and send the acoustic signal associated with the execution of the selected application to the speaker Mobile terminal, characterized in that through the output. The method of claim 1,
The control unit,
The mobile terminal, characterized in that for executing the event or the application in the state that the speaker is on (on), when detecting a contact of the display unit when receiving a predetermined event or executing a predetermined application. The method of claim 1,
The speaker is a thin film flat speaker,
The thin film speaker,
And when one side and the other side of the display unit are bent by the display unit, the display unit is provided to the display unit and outputs sound toward an outer surface of the display unit. The method of claim 9,
And a microphone provided on an inner surface of the display unit to be activated. The method of claim 9,
The display unit includes:
A plurality of thin films formed on the substrate for displaying an image; And
The thin film speaker attached to an opposite surface of the substrate on which the thin film is formed with the substrate interposed therebetween;
To the mobile terminal. The method of claim 1,
It includes a near field communication module,
When the display unit is bent and one side and the other side of the display unit are coupled to each other, the controller switches the mobile terminal to a mode for performing data communication with at least one external device through the short range communication module. . 13. The method of claim 12,
The short range communication module includes a Bluetooth module,
When the mobile terminal is paired with the at least one external device through the Bluetooth module,
The control unit,
And distributing a sound signal output from the mobile terminal to the mobile terminal and the at least one external device. In the control method of a mobile terminal having a flexible display unit,
Sensing the contact between one side and the other side of the display unit by bending the display unit; And
If the contact is detected, turning on a speaker and outputting a predetermined sound signal generated by the mobile terminal through the speaker;
And transmitting the control information to the mobile terminal.

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