KR101498061B1 - Mobile terminal and display method thereof - Google Patents

Abstract

The projector module includes a projector module and a transparent display unit disposed in front of the projector module based on the image projection direction of the projector module. When the projector module is driven, an image projected by the projector module is displayed on the transparent display unit And displays predetermined information on the transparent display unit when the projector function is not driven, and a display method thereof.

Description

[0001] MOBILE TERMINAL AND DISPLAY METHOD THEREOF [0002]

The present invention relates to a mobile terminal that implements a projector function and a display method thereof.

The terminal can move And can be divided into a mobile / portable terminal and a stationary terminal depending on whether the mobile terminal is a mobile terminal or a mobile terminal. The mobile terminal can be divided into a handheld terminal and a vehicle mount terminal according to whether the user can directly carry the mobile terminal.

Such a terminal has various functions, for example, in the form of a multimedia device having multiple functions such as photographing and photographing of a moving picture, reproduction of a music or video file, reception of a game and broadcasting, etc. .

In order to support and enhance the functionality of such terminals, it may be considered to improve the structural and / or software parts of the terminal.

A mobile terminal that implements a projector function according to the related art includes a built-in or external type projector module and can display an image projected from the provided projector module on an external screen.

However, according to the above-described related art, the transparent plate disposed in front of the lens of the projector module and transmitting the image projected from the lens to the external screen does not have a separate function when the projector function is not implemented.

Therefore, it is necessary to diversify the use of the transparent plate depending on whether the projector function is implemented or not.

The present invention relates to a mobile terminal having a transparent display unit for transmitting an image projected from a projector module to an external screen and capable of selectively performing a display function by a transparent display unit depending on whether the projector function is driven or not, .

According to an aspect of the present invention, there is provided a mobile terminal including: a projector module provided inside a mobile terminal; A transparent display unit disposed in front of the projector module with respect to an image projection direction of the projector module; And a controller for displaying an image projected by the projector module on the external screen through the transparent display unit when the projector function is activated and displaying predetermined information on the transparent display unit when the projector function is performed.

According to another aspect of the present invention, there is provided a display method of a mobile terminal including a projector module and a display unit of a mobile terminal including a transparent display unit disposed in front of the projector module based on the image projection direction of the projector module, A method comprising: determining whether a projector function is driven; Displaying an image projected by the projector module on an external screen through the transparent display unit when it is determined that the projector function is driven; And displaying predetermined information on the transparent display unit when it is determined that the projector function is not to be driven.

The mobile terminal and display method thereof according to at least one embodiment of the present invention configured as described above have the following effects.

First, when a projector function is activated, an image projected from a projector model through a transparent display unit can be displayed on an external screen.

Secondly, when the projector function is not activated, predetermined information can be displayed using the transparent display unit.

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

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

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 160, A controller 170, a controller 180, a power supply 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 broadcast signals 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 be 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).

For example, the broadcast receiving module 111 may be a Digital Multimedia Broadcasting-Terrestrial (DMB-T), a Digital Multimedia Broadcasting-Satellite (DMB-S), a Media Forward Link Only And a Digital Broadcasting System (ISDB-T) (Integrated Services Digital Broadcast-Terrestrial). Of course, the broadcast receiving module 111 may be adapted to other broadcasting systems 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 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 is a module for wireless Internet access, and may be built in or externally attached to the mobile terminal 100. 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 a short range communication technology.

The position information module 115 is a module for obtaining the position of the mobile terminal, and a representative example thereof is a Global Position System (GPS) module.

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 an image frame such as a still image or a moving image 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 160 or transmitted to the outside through the wireless communication unit 110. [ Two or more cameras 121 may be provided depending on the use environment.

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 / static), 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 is possible to sense whether the slide phone is opened or closed. It is also possible to sense 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 includes a display unit 151, a transparent display unit 151-1, an audio output module 152, an alarm unit 153, A haptic module 154, a projector module 155, and the like.

The display unit 151 displays (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 (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), a flexible display display, a 3D display, and a transparent display.

The transparent display unit 151-1 transmits an image projected from the projector module 155 to be displayed on an external screen when the projector function is activated and performs an additional display function separately from the projector function non- can do.

The transparent display unit 151-1 may be positioned on any one of the upper surface, the lower surface, the side surface, the front surface, and the rear surface of the mobile terminal 100. [ Further, the display portion 151 and the transparent display portion 151-1 may be disposed on the same surface or on different surfaces.

The transparent display unit 151-1 refers to a transparent or light transmissive display capable of viewing the outside through the transparent display unit 151-1. A typical example of the transparent display unit 151-1 is a transparent OLED (TOLED) have.

(Hereinafter, referred to as a 'touch screen') in which a display unit 151 and a sensor for sensing a touch operation (hereinafter, referred to as 'touch sensor') form 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. Thus, the control unit 180 can know which area of the display unit 151 is touched or the like.

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 in the vicinity thereof without mechanical contact using an electromagnetic force or an infrared ray. 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 type photoelectric sensor, a direct reflection type photoelectric sensor, a mirror reflection type photoelectric sensor, a high frequency oscillation type 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 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 also outputs sound signals related to functions (e.g., call signal reception sound, 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.

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 be output through the display unit 151 or the audio output module 152 so that they may be classified as a part of the alarm unit 153.

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 include a pin arrangement vertically moving with respect to the contact skin surface, a spraying force or suction force of the air through the injection port or the suction port, a touch on the skin surface, contact with an electrode, And various tactile effects such as an effect of reproducing a cold sensation using an endothermic 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 allow the user to feel the tactile effect through the muscular sensation of the finger or arm. At least two haptic modules 154 may be provided according to the configuration of the mobile terminal 100.

The projector module 155 is a component for performing an image project function using the mobile terminal 100 and is similar to the image displayed on the display unit 151 in accordance with a control signal of the controller 180 Or at least partly display another image on an external screen or wall.

Specifically, the projector module 155 includes a light source (not shown) that generates light (for example, laser light) for outputting an image to the outside, a light source And a lens (not shown) for enlarging and outputting the image at a predetermined focal distance to the outside. Further, the projector module 155 may include a device (not shown) capable of mechanically moving the lens or the entire module to adjust the image projection direction.

The projector module 155 can be divided into a CRT (Cathode Ray Tube) module, an LCD (Liquid Crystal Display) module and a DLP (Digital Light Processing) module according to the type of the display means. In particular, the DLP module may be advantageous for miniaturization of the projector module 151 by enlarging and projecting an image generated by reflecting light generated from a light source on a DMD (Digital Micromirror Device) chip.

Preferably, the projector module 155 may be provided longitudinally on the side, front or back side of the mobile terminal 100. It goes without saying that the projector module 155 may be provided at any position of the mobile terminal 100 as occasion demands.

Particularly, in the present invention, the projector module 155 is disposed in a mutually layered structure with the transparent display part 151-1, and the transparent display part 151-1 ). ≪ / RTI >

The memory unit 160 may store a program for processing and controlling the control unit 180 and temporarily store the input / output data (e.g., telephone directory, message, audio, For example. The memory unit 160 may also store the frequency of use of each of the data (for example, each telephone number, each message, and frequency of use for each multimedia). In addition, the memory unit 160 may store data on vibration and sound of various patterns output when the touch is input on the touch screen.

The memory 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), a RAM (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 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 supplies power to each component in the mobile terminal 100 or transmits data to the 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 inputted from the cradle may be operated as a signal for recognizing that the mobile terminal 100 is correctly mounted on the cradle.

The controller 180 typically controls the overall operation of the mobile terminal. For example, it carries out related control and processing for voice call, data communication, video call, etc. 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 external power and internal power under the control of the controller 180 and supplies power necessary for operation of the respective components.

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 a processor, controllers, micro-controllers, microprocessors, and other electronic units for performing other functions. In some cases, The embodiments described may be implemented by the control unit 180 itself.

According to a software implementation, embodiments such as the procedures and functions described herein may be implemented in separate software modules. Each of the software modules may perform one or more of the functions and operations described herein. Software code can be implemented in a software application written in a suitable programming language. The software code is stored in the memory 160 and can be executed by the control unit 180. [

2A is a perspective view of an example of a mobile terminal or a mobile terminal according to the present invention.

The disclosed mobile terminal 100 includes a bar-shaped terminal body. However, the present invention is not limited thereto, and can be applied to various structures such as a slide type, a folder type, a swing type, and a swivel type in which two or more bodies are relatively movably coupled.

The body includes a case (a casing, a housing, a cover, and the like) which forms an appearance. In this embodiment, the case may be divided into a front case 101 and a rear case 102. [ A variety of electronic components are embedded in the space formed between the front case 101 and the rear case 102. At least one intermediate case may be additionally disposed between the front case 101 and the rear case 102. [

The cases may be formed by injection molding a synthetic resin, or may be formed to have a metal material such as stainless steel (STS) or titanium (Ti) or the like.

A display unit 151, an audio output module 152, a camera 121, user input units 130/131 and 132, a microphone 122, an interface 170, and the like are disposed in the front body 101 .

The display unit 151 occupies most of the main surface of the front case 101. A sound output module 152 and a camera 121 are disposed in an area adjacent to one end of both ends of the display unit 151 and a user input unit 131 and a microphone 122 are disposed in an area adjacent to the other end. The user input unit 132 and the interface 170 may be disposed on the side surfaces of the front case 101 and the rear case 102. [

The user input unit 130 is operated to receive a command for controlling the operation of the mobile terminal 100 and may include a plurality of operation units 131 and 132. The operation units 131 and 132 may be collectively referred to as a manipulating portion and may be employed in any manner as long as the user operates in a tactile manner.

The contents inputted by the first or second operation unit 131 or 132 may be variously set. For example, the first operation unit 131 receives commands such as start, end, scroll, and the like, and the second operation unit 132 controls the size of the sound outputted from the sound output module 152, To the touch recognition mode of the touch screen.

2B is a rear perspective view of the mobile terminal shown in FIG. 2A.

Referring to FIG. 2B, a camera 121 'may be further mounted on the rear surface of the terminal body, that is, the rear case 102. The camera 121 'has a photographing direction substantially opposite to the camera 121 (see FIG. 2A), and may be a camera having different pixels from the camera 121.

For example, the camera 121 may have a low pixel so that the face of the user can be photographed and transmitted to the other party in case of a video call or the like, and the camera 121 ' It is preferable to have a large number of pixels. The cameras 121 and 121 'may be installed in the terminal body so as to be rotatable or pop-upable.

A flash 123 and a mirror 124 are additionally disposed adjacent to the camera 121 '. The flash 123 illuminates the subject when the subject is photographed by the camera 121 '. The mirror 124 allows the user to illuminate the user's own face or the like when the user intends to shoot himself / herself (self-photographing) using the camera 121 '.

An acoustic output 152 'may be additionally disposed on the rear surface of the terminal body. The sound output unit 152 'may implement the stereo function together with the sound output unit 152 (see FIG. 2A), and may be used for the implementation of the speakerphone mode during a call.

In addition to the antenna for talking and the like, a broadcast signal receiving antenna 116 may be further disposed on the side of the terminal body. The antenna 116, which forms part of the broadcast receiving module 111 (see FIG. 1), can be installed to be able to be drawn out from the terminal body.

A power supply unit 190 for supplying power to the mobile terminal 100 is mounted on the terminal body. The power supply unit 190 may be built in the terminal body or may be detachable from the outside of the terminal body.

The rear case 102 may further include a touch pad 135 for sensing a touch. The touch pad 135 may also be of a light transmission type like the display unit 151. [ In this case, if the display unit 151 is configured to output time information on both sides, the time information can be recognized through the touch pad 135 as well. The information output on both sides may be all controlled by the touch pad 135. [ Alternatively, a display may be additionally mounted on the touch pad 135, and a touch screen may be disposed on the rear case 102 as well.

A configuration in which the above-described projector module and the transparent display unit are provided in the bar-type mobile terminal 100 will be described with reference to FIGS. 3A and 3B. 3A and 3B illustrate a structure of a mobile terminal having a projector module and a transparent display unit according to an embodiment of the present invention.

3A, a transparent display unit 151-1 is disposed on the upper end surface of the mobile terminal 100, and a display unit 151-1 is disposed behind the transparent display unit 151-1 on the basis of the image projection direction by the projector module 155. [ The module 155 can be arranged to form a layered structure.

The control unit 180 performs P control so that an image projected from the projector module 155 when the projector function is driven is transmitted through the transparent display unit 151-1 and displayed on the external screen, -1) to display predetermined information.

That is, the transparent display unit 151-1 can selectively perform a display function depending on whether the projector function is driven or not.

In addition, the touch pad 135-1 may be disposed on the front surface of the transparent display unit 151-1. 3B, the projector module 155, the transparent display 151-1, and the touch pad 135-1 may be sequentially arranged in a layered structure based on the image projection direction .

When the touch pad 135-1 is disposed on the entire surface of the transparent display unit 151-1, the controller 180 controls the touch of the transparent display unit 151-1 using the touch pad 135-1. And can perform an operation corresponding to the recognized touch.

On the other hand, although not shown in the drawing, the camera 121 may be disposed on the same plane as the transparent display unit 151-1 or on a different plane.

Hereinafter, with reference to the accompanying drawings, a description will be given of a mobile terminal 100 selectively performing a display function by the transparent display unit 151-1 according to whether or not a projector function is driven according to an embodiment of the present invention. Let's take a closer look.

According to the present invention, the mobile terminal 100 can selectively perform a display function using the transparent display unit 151-1 according to whether the projector function is driven, under the control of the control unit 180. [

More specifically, the mobile terminal 100 does not perform the display function of the transparent display unit 151-1 when the projector function is driven, and transmits the image projected from the projector module 155 to the transparent display unit 151-1, To be displayed on an external screen. In this case, in order to ensure the sharpness of the projected image, the transparency of the transparent display unit 151-1 needs to be higher than a certain standard. Accordingly, the controller 180 can adjust the transparency of the transparent display unit 151-1 to a predetermined level or higher when the projector function is activated.

As shown in FIG. 4A, when the projector function is activated, the mobile terminal 100 may transmit the projection image by the projector module 155 to the transparent display unit 151-1 and display the projection image on the external screen.

Alternatively, as shown in FIG. 4B, the mobile terminal 100 can display predetermined information on the transparent display unit 151-1 without performing the projector function.

For example, when the mobile terminal 100 receives a call, the mobile terminal 100 can display call reception notification information on the transparent display unit 151-1.

Hereinafter, a structure in which the projector module 155 and the transparent display unit 151-1 are provided for each type of mobile terminal will be described with reference to the accompanying drawings.

FIG. 5 shows a structure in which a projector module 155 and a transparent display part 151-1 are provided in a bar-type mobile terminal.

5, the bar-type mobile terminal 100 includes a transparent display unit 151-1 disposed on a top surface thereof, and a projector module 155 disposed below the transparent display 151-1 . Alternatively, the projector module 155 may be disposed behind the transparent display part 151-1 with respect to the image projection direction.

In addition, the transparent display unit 151-1 may be positioned on either the bottom surface, the side surface, the front surface, or the rear surface as well as the top surface of the bar-type mobile terminal 100. [ The projector module 155 can always be disposed below the transparent display portion 151-1 based on the inner direction of the mobile terminal 100 regardless of the plane on which the transparent display portion 151-1 is located.

6 illustrates a structure in which a folder module type mobile terminal includes a projector module 155 and a transparent display unit 151-1.

The folder type mobile terminal 100 may include a first folder unit 610, a second folder unit 620 and a hinge unit 630 connecting the first and second folder units 610 and 620 .

As shown in Fig. 6, the projector module 155 and the transparent display portion 151-1 may be disposed on the hinge portion 630. Fig. In particular, the transparent display unit 151-1 is disposed on the upper surface of the hinge unit 630, and the projector module 155 is disposed on the transparent display unit 151 -1). ≪ / RTI >

Of course, the projector module 155 and the transparent display portion 151-1 can be disposed in any of the first folder portion 610 and the second folder portion 620. [

FIG. 7 illustrates a structure in which a projector module 155 and a transparent display unit 151-1 are provided in a sliding type mobile terminal.

The sliding type mobile terminal 100 may include a first slider 710 and a second slider 720.

7, the projector module 155 and the transparent display portion 151-1 can be disposed on the second slider 720 as shown in FIG. 7, as well as on the first slider 710, As shown in FIG.

At this time, the projector module 155 may be disposed below the transparent display portion 151-1 disposed on the upper surface of the second slider 720 (or the first slider 710).

FIG. 7 illustrates a structure in which a projector module 155 and a transparent display unit 151-1 are provided in a sliding type mobile terminal.

The sliding type mobile terminal 100 may include a first slider 710 and a second slider 720. At this time, the first slider 710 can be slidably moved from the second slider 720.

The projector module 155 and the transparent display portion 151-1 can be disposed on the first slider 710 as well as on the second slider 720 as shown in FIG.

At this time, the projector module 155 may be disposed below the transparent display portion 151-1 disposed on the upper surface of the second slider 720 (or the first slider 710).

FIG. 8 shows a structure in which a projector module 155 and a transparent display unit 151-1 are provided in a swivel type mobile terminal.

The swivel type mobile terminal 100 may include a first body 810 having a display unit 155 and a second body 820 having a keypad. The first main body 810 can be rotated at a predetermined angle from the second main body 820.

The projector module 155 and the transparent display portion 151-1 may be disposed on the first body 810 as well as on the second body 820 as shown in FIG.

At this time, the projector module 155 may be disposed below the transparent display portion 151-1 disposed on one side of the second body 820 (or the first body 810).

9 shows a structure in which a projector module 155 and a transparent display part 151-1 are provided in a swing type mobile terminal.

The swing type mobile terminal 100 may include a rotation unit 910 having a display unit 155 and a main body 920 having a keypad. The rotating portion 910 can be rotated at a predetermined angle from the main body 920.

The projector module 155 and the transparent display portion 151-1 can be disposed in the main body 920 as well as in the rotation portion 910 as shown in Fig.

At this time, the projector module 155 may be disposed below the transparent display portion 151-1 disposed on one side of the main body 920 (or the rotation portion 910).

The mobile terminal according to the present invention can also be applied to a clip type terminal (see FIG. 10) and a clock type terminal (see FIG. 11).

Here, the clip-type terminal may mean a mobile terminal 100 that can be detached from a predetermined clip suitable for detachment of the mobile terminal 100.

In addition, the watch-type terminal may refer to a mobile terminal 100 having a shape of a wristwatch and being wearable on the wrist of a user.

12A and 12B show a structure in which a projector module 155 and a projector unit 1220 equipped with a transparent display unit 151-1 are combined to be rotatable in a mobile terminal according to the present invention.

Particularly, Fig. 12A shows the state after the projector section 1220 is turned, and Fig. 12B shows the state before the projector section 1220 is turned.

12A and 12B, the mobile terminal 100 may include a main body 1210 and a projector part 1220 rotatably coupled from the main body 1210.

In addition, the projector unit 1220 may be provided with a projector module 155 and a transparent display unit 151-1. Specifically, the transparent display unit 151-1 is provided on one side of the projector unit 1220 in contact with the main body 1210 on the basis of the closed state (the state of FIG. 12B) of the projector unit 1220, May be provided behind the transparent display unit 151-1 on the basis of one surface provided with the transparent display unit 151-1.

The projector unit 1220 can be hinged to the main body 1210 and the projection angle of the image can be adjusted by using the projector module 155 provided in the projector unit 1220, The camera 121 may be disposed so that the image projected by the projector module 155 can be photographed.

5 to 12B, the touch pad 135-1 may be disposed on the front surface of the transparent display unit 151-1 (see FIG. 3B). Accordingly, the touch pad 135-1, the transparent display unit 151-1, and the projector module 155 can be sequentially arranged inward of the mobile terminal 100. [ In addition, the touch pad 135-1 and the transparent display unit 151-1 can operate as a touch screen.

Since the image projected from the lens of the projector module 155 must be transmitted through the transparent display portion 151-1 when the projector function is activated, the lens of the projector module 155 in FIGS. 5 to 12B is a transparent display portion 151-1). ≪ / RTI >

Hereinafter, a display method of a mobile terminal according to the present invention will be described with reference to FIG.

13 is a flowchart of a display method of a mobile terminal according to an embodiment of the present invention.

As shown in FIG. 13, the mobile terminal 100 determines whether the projector function is driven according to the control of the control unit 180 (S1310).

Here, the projector function may project information (e.g., image, text, moving image, etc.) stored in the mobile terminal 100 or an external terminal connected to the mobile terminal 100 via the projector module 155 onto an external screen And the like.

Further, the projector function can be driven when the menu item corresponding to the operation of the projector function or the function key (or function key area) is selected by the user.

The control unit 180 may adjust the transparency of the transparent display unit 151-1 according to the determination result.

For example, when determining that the projector function is driven as a result of the determination, the control unit 180 sets the transparency of the transparent display unit 151-1 to a certain level or more. If the controller 180 determines that the projector function is not driven, The transparency of the display unit 151-1 can be set below a certain standard.

In particular, if the transparent display portion 151-1 is TOLED, transparency can be set up to 75% when the projector function is driven (in other words, the display function is not activated).

Of course, the display function using the transparent display unit 151-1 is not necessarily capable of being driven only when the transparency is less than a certain standard, so transparency need not necessarily be controlled depending on whether the projector function is driven or not. However, it is only necessary to secure transparency above a certain level when the projector function is activated.

This is because it is necessary to secure some degree of transparency of the transparent display unit 151-1 in driving the projector function in order to enhance the sharpness of the image projected through the projector module 155. [

The mobile terminal 100 transmits the image projected by the projector module 155 (hereinafter referred to as 'projection image') to the transparent display unit 151 (hereinafter referred to as 'the projected image') under the control of the control unit 180 -1) on the external screen (S1320).

Referring to the display step S1320, the description with reference to Fig. 4A will be referred to.

Here, the transparent display unit 151-1 can serve to transmit the projection image from the projector module 155. [

For this purpose, the transparent display portion 151-1 may be positioned in front of the projector module 155 (particularly, its lens) based on the image projection direction.

For example, the projection image may include information (e.g., image, moving picture, text, broadcast image, etc.) stored in the mobile terminal 100 or received from an external terminal or stored in an external terminal connected to the mobile terminal 100 Information may be included.

On the other hand, if it is determined that the projector function is not driven, the mobile terminal 100 displays predetermined information on the transparent display unit 151-1 under the control of the controller 180 (S1330).

Referring to the display step S1330, the description with reference to Fig. 4B will be referred to.

For example, the predetermined information may include information displayed on the display unit 151, simple information on the displayed information, event occurrence notification information, status information of the mobile terminal 100, information on menu execution, and the like.

The mobile terminal 100 detects the occurrence of the event under the control of the control unit 180 (S1340). The mobile terminal 100 displays information on the transparent display unit 151-1 according to the detection result in the sensing step S1340 according to the control of the controller 180 in step S1350.

Here, the event can be classified into a user event and a system event. The user event may include a user operation (e.g., a touch, a key button input, a shake) with respect to the mobile terminal 100. The system event may include data transmission / reception using the mobile terminal 100, driving of a specific application, state change of the mobile terminal 100, and the like.

Also, in the display step S1350, a virtual keypad for receiving a touch from the outside can be displayed including information according to the detection result in the sensing step S1340. In this case, the transparent display unit 151-1 and the touch pad disposed on the front surface of the transparent display unit 151-1 may be operated as a touch screen.

Hereinafter, a process of displaying information according to the event detection result on the transparent display unit 151-1 will be described in detail with reference to the drawings.

For convenience of explanation, the drawings referred to in the following description are limited to the case where the mobile terminal 100 is a bar type. It goes without saying that the present invention can be applied to various types (for example, a folder, a slider, a swivel, a swing, etc.) as described above.

14A to 14C are views for displaying information according to a result of user event detection on a transparent display unit according to an embodiment of the present invention.

14A, when the user inputs a touch on the screen of the display unit 151 (operated by the touch screen), the mobile terminal 100 displays a touch on the transparent display unit 151-1 (E.g., "Touch is input") or an icon indicating that the input has been input.

Alternatively, as shown in FIG. 14B, when the movement of the mobile terminal 100 is detected, the mobile terminal 100 displays a phrase (for example, " Motion detected ") or an icon.

Alternatively, as shown in FIG. 14C, when the key included in the keypad (including the virtual keypad) is selected by the user, the mobile terminal 100 performs key selection on the transparent display unit 151-1 You can display a notification phrase (for example, "Entering a numeric key ...") or an icon.

Although not shown in the figure, the virtual keypad may be displayed together with information according to a result of user event detection in Figs. 14A to 14C.

15A to 16C are views for displaying information according to a system event detection result on a transparent display unit according to an embodiment of the present invention.

The key areas 1511 to 1516 to be described later may be displayed on the transparent display part 151-1 as an example of a virtual key pad.

15A, when the mobile terminal 100 receives a message using the mobile communication module 112, the mobile terminal 100 displays a phrase or an icon indicating that the message is received on the transparent display unit 151-1 Can be displayed.

In addition, a key region 1511 for receiving a received message confirmation command may be displayed on the transparent display unit 151-1. When the key region 1511 is selected, The contents of the received message can be displayed.

Alternatively, as shown in FIG. 15B, when the mobile terminal 100 receives a call using the mobile communication module 112, a message indicating that the call is received on the transparent display unit 151-1, Icon can be displayed.

In addition, a key region 1512 for receiving incoming call connection can be displayed on the transparent display unit 151-1, and when the key region 1512 is selected, Information (e.g., talk time) can be displayed on the transparent display unit 151-1.

As shown in FIG. 15C, the mobile terminal 100 sets a schedule for a meeting through the schedule management application, and when the time corresponding to the predetermined schedule is reached, the transparent display unit 151-1 ) May display a message or icon indicating that the meeting schedule is reserved.

In addition, a key region 1513 for selecting a meeting schedule confirmation on the transparent display unit 151-1 can be displayed together, and when the key region 1513 is selected, the schedule schedule notification operation can be stopped.

15D, when the MP3 application is being driven, the mobile terminal 100 may play back MP3 playback information (e.g., song name, singer name, playback time / remaining playback time, album information, (A volume control area 1514, a play / pause select area 1515, and a play list area 1516) for controlling the state of the player.

Accordingly, the user can change or set the MP3 playback state currently being played as desired by selecting the key area for adjusting the MP3 playback state.

15E, when the mobile terminal 100 receives a message during broadcast output according to the broadcast application driving, the mobile terminal 100 displays a message or an icon indicating the message reception on the transparent display unit 151-1 (A) It can be done.

The mobile terminal 100 may display the contents of the received message on the transparent display unit 151-1 when receiving the received message confirmation command from the user (b).

At this time, the mobile terminal 100 can perform the display operation according to the message reception through the transparent display unit 151-1 while maintaining the broadcasting output state as it is.

16A to 16C, the mobile terminal 100 may display information according to the state change of the mobile terminal 100 on the transparent display unit 151-1.

For example, the mobile terminal 100 displays a phrase or icon indicating that the battery is low in a state where the battery is insufficient, on the transparent display unit 151-1 (Fig. 16A) 16B). When the external memory 1610 is mounted on the mobile terminal 100, a phrase or an icon indicating the mounting of the external memory is displayed on the transparent display unit 151-1 151-1) (Fig. 16C).

On the other hand, the display operation of the information through the transparent display unit 151-1 shown in Figs. 14A to 16C can be interrupted after a predetermined time has elapsed or an interruption command is input from the user.

If the mobile terminal 100 determines that the mobile terminal 100 is open or closed according to the control of the controller 180 in the case of the folder type, The display unit 151-1 can be rotated in a predetermined direction.

If the mobile terminal 100 determines that the projector function is not to be operated, the mobile terminal 100 can display predetermined information using the transparent display unit 151-1. In order to continuously provide information displayed through the transparent display unit 151-1 to the user irrespective of whether the mobile terminal 100 is opened or closed, the transparent display unit 151 -1).

This will be described in detail with reference to Figs. 17A and 17B. 17A and 17B, it is assumed that the transparent display portion 151-1 and the projector module 155 are disposed on the hinge portion 730. [

The mobile terminal 100 displays the information on the information through the transparent display part 151-1 disposed on the upper surface of the hinge part 730 in a state where the first folder part 710 is closed with respect to the second folder part 720, (Fig. 17A).

When the first folder unit 710 is opened from the closed state with respect to the second folder unit 720, the mobile terminal 100 displays the hinge unit 730 in which the transparent display unit 151-1 is disposed May be disposed on the inner side of the mobile terminal 100 to rotate the hinge portion 730 so as to view the user. Here, the rotation of the hinge portion 730 may mean the rotation of the transparent display portion 151-1 (Fig. 17B).

When at least one function menu item is displayed on the display unit 151 and the specific function menu item is selected, the mobile terminal 100 according to the present invention displays a widget of the selected specific menu item Can be displayed on the transparent display unit 151-1.

This will be described with reference to Figs. 18A to 18D.

18A to 18D are views showing a widget of a specific function menu item on a transparent display unit according to an embodiment of the present invention.

The mobile terminal 100 displays a plurality of function menu items through the display unit 151 and displays the widget on the transparent display unit 151-1 among the plurality of displayed function menu items A specific function menu item can be selected (Fig. 18A).

For example, the mobile terminal 100 may be configured to perform the following operations: touch dragging a specific function menu item to a specific point on the screen, direct / proximity touch (distinguished from touch for execution of a specific function menu item) An operation corresponding to a display command in the form of a widget on the transparent display unit 151-1 can be input.

Accordingly, the mobile terminal 100 can display a specific function menu item on the transparent display unit 151-1 in the form of a widget.

For example, when the specific function menu item is 'multimedia', the mobile terminal 100 displays each area for receiving the lower function menu items belonging to 'multimedia' on the transparent display unit 151-1 (Fig. 18B). Accordingly, the mobile terminal 100 can execute the sub-function menu item corresponding to the selected specific area when a specific area is selected from the user.

Alternatively, when the specific function menu item is 'MP3', the mobile terminal 100 operates the MP3 application and displays information on the currently playing MP3 file on the transparent display unit 151-1 (for example, , Song name, singer, composer, lyricist, album information, etc.) (Fig. 18B).

Alternatively, when the specific function menu item is 'MP3', the mobile terminal 100 operates the MP3 application and displays a key area (for example, For example, a volume control area, a stop / play selection area, a play list view area, and the like (Fig. 18D).

The mobile terminal 100 according to the present invention displays the data list including at least one data through the display unit 151. When the specific data is selected from the displayed data list, Can be displayed on the transparent display unit 151-1.

Here, the data may include a name, a telephone number, an e-mail, a photograph, a foot / incoming message, etc., in which a telephone number or the like is set.

This will be described with reference to Figs. 19A and 19B.

Figs. 19A and 19B are diagrams showing an execution screen or detailed information of specific data on a transparent display unit according to an embodiment of the present invention. Fig. For convenience of explanation, it is assumed that the data is a name set with a telephone number or the like.

The mobile terminal 100 can select a name to be displayed on the transparent display unit 151-1 from the user while displaying the name list stored in the phone book on the display unit 151 19A).

19A, when the specific name is selected, the mobile terminal 100 displays the phone number, e-mail address, homepage address, and the like set for the selected specific name on the transparent display unit 151-1 through the transparent display unit 151-1, (Fig. 19B).

The mobile terminal 100 according to the present invention displays information corresponding to an input signal input from the outside through the display unit 151 and transmits information displayed on the display unit 151 to the transparent display unit 151- 1).

In addition, when displaying the information displayed on the display unit 151 on the display unit on the transparent display unit 151-1, the controller 180 controls the display unit 151 Can be adjusted. Generally, since the transparent display unit 151-1 is smaller than the display unit 151, the information size can be reduced.

This will be described with reference to Figs. 20 and 21. Fig.

20 and 21 are views for displaying information displayed on a display unit on a transparent display unit according to an embodiment of the present invention.

When the mobile terminal 100 receives a phrase or picture from the user on the display unit 151 and displays the phrase or picture on the display unit 151, the mobile terminal 100 may display the displayed phrase or picture on the transparent display unit 151-1 And Fig. 21).

At this time, the size of the phrase or picture may be reduced in consideration of the size of the transparent display 151-1. In addition, the fonts of the phrases may be set differently.

Further, according to an embodiment of the present invention, the above-described display method can be implemented as a code that can be read by a processor on a medium on which a program is recorded. Examples of media that can be read by the processor include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage, etc., and implemented in the form of a carrier wave (e.g., transmission over the Internet) .

The above-described mobile terminal and its display method are not limited to the configuration and method of the above-described embodiments, but the embodiments can be applied to all or some of the embodiments selectively As shown in FIG.

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

2A is a front perspective view of a mobile terminal according to an embodiment of the present invention;

FIG. 2B is a rear perspective view of a mobile terminal according to an embodiment of the present invention; FIG.

FIG. 3A and FIG. 3B are structural diagrams of a mobile terminal having a projector module and a transparent display unit according to an embodiment of the present invention;

FIGS. 4A and 4B are diagrams illustrating an optional performance of a display function of a transparent display unit according to whether or not a projector function is driven according to an exemplary embodiment of the present invention. FIG.

FIG. 5 and FIG. 12B are views of a mobile terminal having a projector module and a transparent display unit according to an embodiment of the present invention.

13 is a flowchart of a display method of a mobile terminal according to an embodiment of the present invention.

FIGS. 14A to 14C illustrate display of information according to a result of user event detection on a transparent display unit according to an embodiment of the present invention. FIG.

FIGS. 15A to 16C illustrate display of information according to a system event detection result on a transparent display unit according to an embodiment of the present invention. FIG.

17A and 17B are views showing the rotation state of the transparent display unit according to the opening and closing of the folder type mobile terminal according to the embodiment of the present invention.

Figures 18A-18D illustrate a widget of a particular function menu item on a transparent display portion in accordance with one embodiment of the present invention.

Figs. 19A and 19B illustrate an execution screen or detailed information of specific data on a transparent display unit according to an embodiment of the present invention. Fig.

Figs. 20 and 21 are views for displaying information displayed on a display unit on a transparent display unit according to an embodiment of the present invention. Fig.

Claims (17)

A projector module provided inside the mobile terminal; A transparent display unit disposed in front of the projector module with respect to an image projection direction of the projector module; And And a controller for displaying an image projected by the projector module when the projector function is activated on an external screen through the transparent display unit and displaying predetermined information on the transparent display unit when the projector function is performed. The method according to claim 1, Further comprising a touch pad, The transparent display unit and the touch pad may include: The mobile terminal forms a mutual layer structure and operates as a touch screen. 3. The apparatus of claim 2, And displays a virtual keypad for receiving a touch from the outside on the transparent display unit. The apparatus of claim 1, And controls the transparency of the transparent display unit according to whether the projector function is activated or not. 5. The apparatus of claim 4, Wherein the controller adjusts the transparency of the transparent display unit to a predetermined standard or higher when the projector function is activated and adjusts the transparency of the transparent display unit to less than a predetermined standard. The apparatus of claim 1, Wherein the transparent display unit is rotated in a predetermined direction according to whether the mobile terminal is opened or closed, when the mobile terminal is a folder type. The apparatus of claim 1, Wherein at least one of a user event and a system event is detected, and the projector function displays information on the transparent display unit according to the detection result. The method according to claim 1, And a display unit for displaying at least one function menu item, Wherein, And displays on the transparent display unit a widget of the selected specific function menu item among the displayed at least one function menu item. The method according to claim 1, And a display unit for displaying a data list including at least one data, Wherein, And displays at least one of an execution screen and detailed information of the specific data selected from the displayed data list on the transparent display unit. The method according to claim 1, Further comprising a display unit for displaying information corresponding to an input signal input from the outside, Wherein, And displays information displayed on the display unit on the transparent display unit. A display method of a mobile terminal including a projector module and a transparent display unit disposed in front of the projector module based on an image projection direction of the projector module, Determining whether the projector function is driven; Displaying an image projected by the projector module on an external screen through the transparent display unit when it is determined that the projector function is driven; And And displaying predetermined information on the transparent display unit when it is determined that the projector function is not driven as a result of the determination. 12. The method of claim 11, Further comprising displaying a virtual keypad on the transparent display unit, the touch pad disposed on a front surface of the transparent display unit and receiving a touch from the outside. 12. The method of claim 11, If it is determined that the projector function is driven, adjusting the transparency of the transparent display unit to a predetermined standard or higher, And controlling the transparency of the transparent display unit to be less than a predetermined standard when it is determined that the projector function is not driven. 12. The method of claim 11, Further comprising the step of rotating the transparent display unit in a predetermined direction according to whether the mobile terminal is opened or closed when it is determined that the projector function is not driven as a result of the determination, . 12. The method of claim 11, Detecting occurrence of at least one of a user event and a system event; And And displaying information on the transparent display unit according to the detection result when it is determined that the projector function is not driven as a result of the determination. 12. The method of claim 11, Displaying at least one function menu item; Selecting a specific function menu item among the displayed at least one function menu item; And And displaying a widget of the selected specific function menu item on the transparent display unit. 12. The method of claim 11, Displaying a data list including at least one data; Selecting specific data from the displayed data list; And Displaying at least one of an execution screen and detailed information of the selected specific data on the transparent display unit.

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