KR20130059122A - Mobile terminal - Google Patents

Abstract

PURPOSE: A portable terminal is provided to improve the brightness of a lighting emitting unit by installing a plurality of light sources. CONSTITUTION: A lighting source unit is included in a terminal body in order to emit light. A light guide plate(310) is extended according to a side surface in order to guide light emitted to the outside. The light guide plate randomly reflects the light. One or more protrusion units(320) are adjacent to the light source in order to emit the light to the light guide plate. One or more protrusion units are projected from one of the surfaces of the light guide plate.

Description

[0001] MOBILE TERMINAL [0002]

The present invention relates to a mobile terminal having a light emitting portion in an outer appearance.

A mobile terminal is a portable electronic device that is portable and has one or more functions of voice and video call function, information input / output function, and data storing function.

As the functions of the mobile terminal are diversified, the mobile terminal is implemented in the form of a multimedia device having complicated functions such as photographing and photographing of a moving picture, reproduction of a music or video file, and reception of a game and a broadcast. Various new attempts have been made in terms of hardware or software to implement the complex functions of multimedia devices.

In addition, mobile terminals are regarded as personal items for expressing their individuality, and various design forms are required. The design form also includes structural changes and improvements for the user to more conveniently use the mobile terminal. One of such structural changes and improvements can be considered for an antenna device implementing near field wireless communication in a mobile terminal.

In recent years, a light emitting portion is formed in a part of a case of a terminal main body, so that the design is improved. However, it is difficult to realize a light emitting unit having a constant brightness within a small-sized terminal main body.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above problems, and it is an object of the present invention to provide a mobile terminal having an improved appearance.

According to an embodiment of the present invention, there is provided a mobile terminal including a light source, a light guide plate, and at least one protrusion. The light source unit is provided in the terminal body to emit light. The light guide plate extends along the side surface to guide the light to the outside, and diffusely reflects the light. The protrusion is adjacent to the light source and projects from one surface of the light guide plate so that the light is incident on the light guide plate.

According to an embodiment of the present invention, the protruding portion includes an incident surface adjacent to the light source portion on which light is incident and a reflecting surface having a predetermined angle with the incident surface.

According to an example of the present invention, the reflection surface is formed such that an incident angle of light incident on the reflection surface to the reflection surface exceeds 45 deg.

According to an example of the present invention, the incident surface is formed to be perpendicular to an incident direction of the light.

According to an embodiment of the present invention, the light guide plate includes a first surface adjacent to the light source unit and having the protrusion formed thereon, a second surface facing the first surface, a second surface facing the first surface, And a fourth surface facing the third surface.

According to an example of the present invention, a scattering pattern is formed on the second surface and the fourth surface so that the light is irregularly reflected.

According to an embodiment of the present invention, the scattering pattern is formed closer to the light source part.

According to an embodiment of the present invention, there is provided a light emitting device including a frame constituting a side surface of a terminal body, the frame including a light emitting area overlapping the second surface and emitting light, .

According to an embodiment of the present invention, the light emitting region is formed of a light transmitting material to transmit the light. An opaque blocking member is formed on the inner surface of the frame in the peripheral region to block transmission of the light.

According to an embodiment of the present invention, the second surface includes a depression that is recessed in a shape corresponding to the protrusion so that the light is reflected in a direction away from the light source.

According to an example of the present invention, the light guide plate extends in one direction along the side surface. The projecting portion includes first and second projecting members spaced apart from each other, and the light source portion includes first and second light sources disposed between the first and second projecting members.

According to an example of the present invention, the first and second projecting members include a plurality of incident surfaces spaced apart from each other. The reflective surfaces of the protrusions are formed to face each other.

According to an example of the present invention, the light guide plate and the protrusion are formed of the same material.

According to one embodiment of the present invention, a support portion protruding from the frame to support the light guide plate is included.

According to an embodiment of the present invention, an adhesive member is formed between the second surface and the frame to adhere the light guide plate to the frame.

According to the present invention configured as described above, a plurality of light sources can be provided by including the light guide plate including a plurality of projections, thereby enhancing the brightness of the light emitting portion.

The protrusion may include an incident surface that is substantially perpendicular to the incident angle of light and a reflection surface that forms a predetermined angle with the incident surface, and may be reflected away from the light source. Therefore, the light can be diffused into a wider space, and the luminance of the light emitting portion can be increased.

It is possible to form the injection pattern inside the light guide plate so as to increase the luminance and to increase the density of the injection pattern as the distance from the light source increases, thereby realizing a uniform luminance.

Since the size and shape of the light guide plate can be formed according to the internal structure of the mobile terminal, an internal space can be secured and a slim mobile terminal can be manufactured.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention;
FIG. 2A is a perspective view of an example of a mobile terminal according to the present invention. FIG.
FIG. 2B is a rear perspective view of the mobile terminal shown in FIG. 2A. FIG.
3 is an exploded view of the mobile terminal of FIG.
4 is a cross-sectional view of the mobile terminal of FIG.
FIG. 5 is a cross-sectional view of the mobile terminal of FIG.
6 is an enlarged view of C of Fig. 3; Fig.
Fig. 7 is a cross-sectional view of the light guide plate of Fig. 6 cut by DD. Fig.
FIG. 8 is a cross-sectional view of the light guide plate of FIG. 6 cut by EE. FIG.
9 is a cross-sectional view of the light guide plate of Fig.

Hereinafter, a mobile terminal related to the present invention will be described in detail with reference to the drawings. In the present specification, the same or similar reference numerals are given to different embodiments in the same or similar configurations. As used herein, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise.

Hereinafter, a mobile terminal related to the present invention will be described in detail with reference to the drawings. In the present specification, the same or similar reference numerals are given to different embodiments in the same or similar configurations. As used herein, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise.

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 and the like. However, it will be understood by those skilled in the art that the configuration according to the embodiments described herein may be applied to a fixed terminal such as a digital TV, a desktop computer, and the like, unless the configuration is applicable only to a mobile terminal.

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 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).

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 Broadcast-Handheld (ISDB-T), Integrated Services Digital Broadcast-Terrestrial (ISDB-T), and the like. 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 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 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 is for generating output related to the visual, auditory or tactile sense and includes a display unit 151, an audio output module 152, an alarm unit 153, and a haptic module 154 .

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, and a 3D display.

Some of these displays may be transparent or light transmissive so that they can be seen through. This can be referred to as a transparent display, and a typical example of the transparent display is TOLED (Transparent OLED) and 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 portion 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 each other, or may be disposed on different surfaces.

(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 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 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 of 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. The haptic module 154 may include two or more haptic modules 154 according to the configuration of the portable terminal 100.

The memory 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 160 may store data on vibration and sound of various patterns outputted when a 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 170 may be a path through which power from the cradle is supplied to the mobile terminal 100, or various commands A signal may be a path through which the signal is transmitted to the mobile 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 controller 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 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 with 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 a mobile terminal according to an embodiment of the present invention. 2B is a rear perspective view of the mobile terminal shown in FIG. 2A.

1, 2A, and 2B, the 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, and a swing type in which two or more bodies are relatively movably coupled. Further, the mobile terminal described herein may be any portable electronic device having a camera and flash, such as a mobile phone, a smart phone, a notebook computer, a digital broadcast terminal, a Personal Digital Assistants ), A PMO (Portable Multimedia Player), and the like.

The terminal body includes a case (which may be referred to as a casing, a housing, a cover, and the like) that forms an appearance. The case may be divided into a front case (201) and a rear case (202) covering a face opposite to the front case. Various electronic components are embedded in the space formed between the front case 201 and the rear case 202. 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. In addition, a cover 203 detachably coupled to the rear case 202 is formed. The cover 203 is formed so as to cover the power supply part 222.

A power supply unit 222, a rear camera unit 221, and a second sound output unit 225 are disposed on the rear surface of the terminal body.

The power supply unit 222 supplies power to the mobile terminal 200. The power supply unit 222 may be built in the main body of the terminal, or may be detachable from the outside of the main body of the terminal.

A flash 223 is disposed adjacent to the rear camera unit 221. The flash 223 may be disposed adjacent to the rear camera unit 221. The flash 223 illuminates the subject toward the subject when the subject is photographed by the rear camera 230.

A mirror 224 may be disposed adjacent the flash 224. The mirror allows the user to illuminate the user's own face or the like in the case where the user intends to photograph (self-photograph) himself / herself by using the rear camera unit 221. [

The second sound output unit 225 may implement a stereo function together with the first sound output unit 211 disposed on the front surface of the terminal body and may be used to implement a speakerphone mode during a call.

The rear camera unit 221 may have a photographing direction substantially opposite to that of the front camera unit 216 disposed on the front side and may be a camera having different pixels from the front camera unit 216. [

For example, the front camera unit 216 has low pixels so that it is easy to capture a face of a user in the case of a video call or the like and transmit the face to the other party. The rear camera unit 221 photographs a general subject and immediately transmits It is preferable to have a high pixel. The front and rear camera units 216 and 230 may be installed in the terminal body so as to be rotatable or pop-upable.

The terminal body includes a display unit 210, a first sound output unit 211, a signal input unit 230, and a front camera unit 216.

The display unit 210 includes an LCD (Liquid Crystal Display) module, an OLED (Organic Light Emitting Diodes) module, and an e-paper for visually expressing information. The display unit 210 may include touch sensing means for inputting data by a touch method. Hereinafter, the display unit 210 including the touch sensing unit will be referred to as a 'touch screen'. If any one of the touches on the touch screen 210 is touched, the contents corresponding to the touched position are input. The content input by the touch method may be a letter or a number, an instruction in various modes, a menu item which can be designated, and the like. The touch sensing means is formed in a translucent manner so that the display portion can be seen, and a structure for enhancing the visibility of the touch screen in a bright place may be included. 2A, the touch screen 210 occupies most of the front surface of the front case 201. [

The first sound output unit 211 may be implemented as a receiver for delivering a call sound to a user's ear or a loud speaker for outputting various alarm sounds or multimedia playback sounds.

The front camera unit 216 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 front camera 216 can be stored in the memory 160 or transmitted to the outside through the wireless communication unit 110. [ The front camera 216 may be provided in two or more depending on the use environment.

The signal input unit 230 is operated to receive a command for controlling the operation of the mobile terminal 200 and may include a plurality of input keys. The input keys may also be referred to as a manipulating portion and may be employed in any manner as long as the user has a tactile sense and operates in a tactile manner.

For example, a dome switch or touch screen capable of receiving a command or information by a push or touch operation of a user, a touch pad, or a wheel, a jog type or a joystick for rotating a key . The contents input by the signal input unit 230 can be variously set. For example, to enter start, end, scroll, and the like.

A side key 214, interface units 212 and 225, and an acoustic input unit 213 are disposed on the side surface of the front case 201.

The side key 214 may be collectively referred to as an operation unit and is capable of receiving a command for controlling the operation of the mobile terminal 200. The side key 214 may be employed in any manner as long as the user is operating in a tactile manner with a tactile impression. The content input by the side key 214 can be variously set. For example, by the side key 214, commands such as control of the image input units 216 and 230, size adjustment of the sound output from the sound output units 211 and 225, or switching to the touch recognition mode of the display unit 210, Input can be received.

The sound input unit 213 may be implemented, for example, in the form of a microphone to receive a user's voice, other sounds, and the like.

The interface units 215 and 225 are paths for enabling the mobile terminal 200 related to the present invention to exchange data with an external device. For example, the interface units 215 and 225 may include a connection terminal for connecting to an earphone by wire or wireless, a port for short-range communication (for example, an infrared port (IrDA Port), a Bluetooth port, A wireless LAN port, etc.), or power supply terminals for supplying power to the mobile terminal 200. The interface units 215 and 225 may be implemented in the form of a socket for receiving an external card such as a Subscriber Identification Module (SIM) or a User Identity Module (UIM) or a memory card for storing information.

The light emitting unit 300 may be formed along the side surface and may emit light according to the user's operation and setting in order to improve the appearance of the appearance of the mobile terminal. Hereinafter, a specific structure of the light emitting unit 300 will be described.

Figure 3 is an exploded view of the mobile terminal of Figure 2a. 4 is a cross-sectional view of the mobile terminal of FIG. 2A taken along line A-A. 5 is a cross-sectional view of the mobile terminal of FIG.

3, the mobile terminal includes a window 210a and a display panel 210b coupled to one surface of the front case 202 to form the display unit 210, and the middle case 202 A support plate 205 disposed between the front case 202 and the rear case 201 and a battery 222 and a rear case 203. [

The window 210a is coupled to one surface of the front case 201. [ A touch sensor (not shown) may be mounted on the window 210a. The touch sensor is formed to sense a touch input and is made of light transmissive. The touch sensor may be mounted on the front surface of the window 210a and may be configured to convert a change in voltage or the like occurring in a specific portion of the window 210a into an electrical input signal.

The display panel 210b is mounted on the rear surface of the window 210a. In this embodiment, a thin film transistor-liquid crystal display (TFT LCD) is disclosed as an example of the display panel 210a, but the present invention is not limited thereto. For example, the display panel 210a may be a liquid crystal display (LCD), an organic light-emitting diode (OLED), a flexible display, a three-dimensional display .

The battery 222 is disposed below the support plate 205. The battery 222 may be detachably formed and separated from the terminal body.

The light emitting unit 300 is formed on a side surface of the front case 201. The light emitting unit 300 is formed to emit light to the outer surface of the terminal body. The light emitting unit 300 may extend along the side surface of the front case 201. However, the present invention is not limited thereto, and a pattern may be implemented according to the shape of the side surface of the front case 201, and may be formed not only in the front case 201, but also in the rear case 202 or the cover 203 .

A plurality of light sources 330 are disposed on the support plate 205. The number of light sources 330 may be disposed apart from each other, and may be disposed along the edge of the terminal main body. The light source 330 may be a light emitting diode (LED), but the present invention is not limited thereto.

The light guide plate 310 is disposed between the front case 201 and the rear case 202 and is installed inside the front case 201. The light guide plate 310 may be formed along the edge of the terminal body. However, the present invention is not limited thereto and may be formed on at least one side surface of the mobile terminal. Also, as shown in the drawing, the light guide plate 310 may be formed integrally with the respective members extending in the direction intersecting with each other, but not limited thereto, and may be separately disposed.

The light guide plate 310 can be manufactured using a mold. That is, the light guide plate 310 may be manufactured so as to conform to the external appearance, the internal structure of the terminal body, and the pattern of the light emitting unit 300. Therefore, it can be manufactured in consideration of the arrangement of the internal parts of the terminal body and the thickness of the mobile terminal.

In the conventional tube-shaped structure, the light source 330 is connected to the light source 330 so as to emit light. However, it is difficult to store the tube-shaped structure, and the space occupied by the tubular shape having a circular section is relatively large. There was a problem such as a shortage.

Referring to FIG. 4, the front case 201 includes a light emitting region 301 'and a peripheral region 201'. The light emitting region 301 'is formed of a transparent material so that the light can pass therethrough. The light emitting region 301 'is formed by the pattern of the predetermined light emitting portion 300.

And a peripheral region 201 'forming a peripheral region of the front case 201 excluding the light emitting region 301'. The peripheral region 201 'is formed to be opaque to prevent light from passing therethrough. For example, an opaque blocking member may be formed on the inner surface of the front case 201 by the non-conductive metal deposition (NCVM) method.

The light guide plate 310 may be mounted on the front case 201. A support plate 205 is formed on the front case 201 to support the window 210a and the light guide plate 310 may be attached to one surface of the support member. That is, an adhesive member 340 may be formed between the light guide plate 310 and the front case 201 to attach the light guide plate 310 to the front case 201. The adhesive member 340 may be formed of an optical transparent double-sided tape (OCA).

In the drawing, the upper surface of the light guide plate 310 adjacent to the window 210a is attached to the front case 201, but the present invention is not limited thereto. That is, the lower surface of the light guide plate 310 opposite to the upper surface can be attached to the front case 201. When the lower surface and the front case 201 are bonded to each other, it is preferable that the adhesive member 340 is formed so as not to overlap with the protrusion 320 described below in order to prevent the incidence of the light.

A support portion 204 protruding from the front case 201 may be formed to support the light guide plate 310. The support portion 204 may be formed to be coupled to the lower portion of the light guide plate 310.

5, the light source 330 is disposed below the light guide plate 310 and the protrusion 320 protrudes to allow the light to enter the light guide plate 310. Referring to FIG. The protrusion 320 may be formed of the same material as the light guide plate 310 and the protrusion 320 and the light guide plate 310 may be integrally formed.

The light source 330 is disposed adjacent to the protrusion 320. That is, the light emitted from the light source 330 enters the protrusion 320 and is incident on the light guide plate 310. The light source 330 is disposed on the support plate 205 and the light guide plate 310 is spaced apart from the support plate 205 by a predetermined distance.

The protrusion 320 is formed adjacent to the light source 330 and has an incident surface 320a on which the light is incident and a reflection surface 320b formed on the incident surface 320a to have a predetermined angle? And includes a depression 320a that is recessed in substantially the same shape as the protrusion 320. As shown in FIG. Hereinafter, the specific structure of the light guide plate 310 will be discussed.

FIG. 6 is an enlarged view of FIG. 3C. Fig. 7 is a cross-sectional view of the light guide plate of Fig. 6 taken along the line D-D. Fig.

Referring to FIG. 6, the light guide plate 310 includes first to fourth surfaces 310a, 310b, 310c, and 310d. The protrusion 320 is formed on the first surface 310a and the second surface 310b is formed opposite to the first surface 310a and the depression 320a is formed. The third surface 310c is a surface disposed adjacent to the light emitting region 300 '(see FIG. 4) to emit the light to the outside, and the fourth surface 310d is a surface on which the third surface 310c Respectively.

7, the protrusion 320 has an incident surface 320a formed adjacent to the light source 330 so that the light is incident on the incident surface 320a and a predetermined angle (?) With the incident surface 320a, And a reflecting surface 320b formed to intersect the surface 320a.

That is, the light emitted from the light source 330 is incident on the first surface 310a of the light guide plate 310 and the incident surface 320a. A larger amount of light can be incident on the light guide plate 310 because the area over which the light can enter is wide.

The incident surface 320a may be formed to be perpendicular to the incident angle of the light emitted from the light source 330. That is, it is formed to be perpendicular to the first surface 310a. Accordingly, the amount of light reflected by the light guide plate 310, which is a separate medium, can be reduced, and the amount of light incident on the light guide plate 310 can be increased.

The reflective surface 320b may be formed at a predetermined angle? With respect to the incident surface 320a. For example, the angle [theta] may be about 80 degrees. Light incident on the incident surface 320a is reflected by the reflecting surface 320b. When the angle? Is excessively small, the light is reflected on the reflection surface 320b and moves in a direction to be closer to the light source. For example, light incident perpendicularly to the incident surface 320a may be formed such that an incident angle at which the light enters the reflective surface 320b is greater than about 45 degrees.

As shown in FIG. 3, the light source 330 may be disposed close to the edge of the main body of the terminal, and the light may be reflected in a direction away from the edge. It is preferable to reflect the light in a direction away from the light source 330 to diffuse a larger amount of light into a wider area than to reflect the light in a direction approaching the light source 330 have.

The depressed portion 320a may be formed on the second surface 210b. The depressed portion 320a may have substantially the same shape as the protrusion 320. Accordingly, the light reflected by the reflection surface 320b is reflected away from the light source 330 by the depression 320ab formed by the depression 320a. Thus, the light may be reflected away from the light source 330 and spread to a larger area.

A scattering pattern is formed on the inner surface of the light guide plate 310. Therefore, the light can be diffused in a wider direction. Hereinafter, the scattering pattern formed on the light guide plate 310 will be described in detail.

8 is a cross-sectional view of the light guide plate of Fig. 6 cut by E-E. Fig. 9 is a cross-sectional view of the light guide plate of Fig. 3 cut by F-F. Fig.

Referring to FIGS. 8 and 9, scattering patterns are formed on the second and fourth surfaces 310b and 310d. The scattering pattern is formed to diffuse the light. That is, the light is reflected and moved on the inner surface of the light guide plate 310, and the light can be diffused evenly into a wider area by the scattering pattern.

The scattering pattern may be formed using a V-cutting method in the manufacturing process of the light guide plate 310, as shown in the figure. In addition, the scattering pattern may be formed by a scattering agent printing method.

The scattering pattern is not formed on the third surface 310c where the light is emitted to the outside and the first surface 310a on which the light is incident by the light source 330. [

Accordingly, the amount of light reaching the third surface 310c is increased due to the scattering of the light due to the scattering pattern, so that the brightness of the light emitting unit 300 can be improved.

Reflecting members (not shown) may be formed on the second and fourth surfaces 310b and 310d. The reflective member can block light that is to be reflected to the outside of the light guide plate 330. Therefore, the brightness of the light emitting unit 300 can be improved by increasing the amount of light emitted to the third surface 310c.

Referring to FIGS. 1 and 9, a plurality of protrusions 320 and a plurality of light sources 330 formed adjacent to the protrusions 320 may be formed in a region extending in one direction of the light guide plate 310.

For example, the protrusions 320 may include first and second protrusions 321 and 322 that are spaced apart from each other. The first and second protrusions 321 and 322 include the incident surface 320a and the reflection surface 320b and the reflection surface 320b are formed to face each other. That is, a plurality of light sources 330 formed adjacent to the incident surface 320a are disposed apart from each other with the first and second protruding members 321 and 322 interposed therebetween.

The light is diffused toward the center of the first and second projecting members 321 and 322 in a direction away from the light sources by the incident surface 320a and the reflection surface 320b.

And the scattering pattern is formed closer to the first and second projecting members 321 and 322. For example, when the scattering pattern is formed in a shape having a tapered point, the density of the peaks is increased as the distance from the first and second projecting members 321 and 362 increases.

As the scattering pattern is denser, the degree of irregular reflection of the light becomes higher. Therefore, it is possible to increase the amount of light reaching the region by raising the degree of irregular reflection of the region far from the light source 330. Accordingly, the brightness of the light emitting unit 300 is uniformly formed, thereby improving the quality of the appearance.

The mobile terminal described above can be applied to not only the configuration and method of the embodiments described above but also all or some of the embodiments may be selectively combined so that various modifications may be made to the embodiments It is possible.

Claims (15)

A light source unit provided in the terminal body to emit light;
A light guide plate extending along the side surface to guide the light to the outside and diffusing the light irregularly;
And at least one protrusion adjacent to the light source and projecting from one surface of the light guide plate so that the light is incident on the light guide plate. The mobile terminal of claim 1, wherein the protrusion includes an incident surface adjacent to the light source and having a predetermined angle with the incident surface. 3. The method of claim 2,
Wherein the reflection surface is formed such that an incident angle of light incident perpendicularly to the incident surface to a reflection surface is greater than 45 degrees. The mobile terminal according to claim 3, wherein the incident surface is formed to be perpendicular to an incident direction of the light. The light guide plate according to claim 1,
A first surface adjacent to the light source portion and on which the protrusion is formed;
A second surface facing the first surface;
A third side adjacent to the outside of the terminal body to emit light; And
And a fourth surface facing the third surface. 6. The method of claim 5,
And a scattering pattern is formed on the second surface and the fourth surface such that light reaching the second surface and the fourth surface is irregularly reflected. The method according to claim 6,
Wherein the scattering pattern is formed closer to the light source part. 8. The method of claim 7,
And a frame constituting a side surface of the terminal main body,
Wherein the frame includes a light emitting region formed to overlap with the second surface to emit light, and a peripheral region adjacent to the light emitting region and blocking the light. 9. The method of claim 8,
The light emitting region is formed of a light transmitting material to transmit the light,
And an opaque blocking member is formed on an inner surface of the frame of the peripheral region to block transmission of the light. 6. The method of claim 5,
Wherein the second surface is recessed in a shape corresponding to the protrusion so that the light is reflected in a direction away from the light source. 5. The method of claim 4,
Wherein the light guide plate extends in one direction along the side surface,
Wherein the projections comprise first and second projecting members spaced apart from each other,
Wherein the light source unit includes first and second light sources disposed between the first and second projecting members. 12. The method of claim 11,
Wherein the first and second projecting members include a plurality of incident surfaces and reflection surfaces that are disposed apart from each other,
Wherein the reflection surfaces are formed to face each other. The mobile terminal of claim 1, wherein the light guide plate and the protrusion are formed of the same material. The method according to claim 1,
And a frame constituting a side surface of the terminal main body,
And a support protruding from the frame to support the light guide plate. The method according to claim 1,
And a frame constituting a side surface of the terminal main body,
And an adhesive member formed between the second surface and the frame to adhere the light guide plate to the frame.

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