KR20130085218A - Mobile terminal - Google Patents

Abstract

The present invention is formed in the display panel disposed inside the main body of the terminal, a frame formed to surround the edge of the display panel to support the display panel, a depression formed and recessed from at least one surface of the frame, It provides a mobile terminal that is formed to protrude more than at least one surface of the outer peripheral surface and the inner peripheral surface of the frame to cushion the shock applied to the display panel from the outside.

Description

[0001] MOBILE TERMINAL [0002]

The present invention relates to a mobile terminal having a display panel.

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 are diversified, for example, the mobile terminal is implemented in the form of a multimedia player having complex functions such as taking a picture or a video, playing a music or a video file, and receiving a game or a broadcast. Various new approaches are being applied in terms of hardware or software to implement the complex functions of media devices.

In recent years, electronic components embedded in mobile terminals have increased, and the size of the display panel has been expanded. As a result, the impact caused by falling of the mobile terminal is increased, and the internal damage thereof becomes a problem. In particular, when an impact is applied to an edge or the like, damage to the display panel becomes a problem.

The technical problem of the present invention has been conceived in this respect, and is to prevent damage to the display panel due to impact.

A mobile terminal according to an embodiment of the present invention for realizing the above object includes a display panel, a frame, a depression and a buffer. The display panel is disposed inside the main body of the terminal. The frame is formed to surround an edge of the display panel to support the display panel. The recess is formed by recessing from at least one surface of the frame. The buffer part is formed in the depression, and is formed to protrude from at least one surface of the outer peripheral surface and the inner peripheral surface of the frame to mitigate the impact applied to the display panel from the outside.

According to an example related to the present invention, the mobile terminal includes a buffer protrusion protruding from a surface exposed from the frame of the buffer portion.

According to an example related to the present invention, the buffer protrusions are arranged in two rows with a predetermined separation space. The display panel is inserted into the space.

According to an example related to the present invention, the shock absorbing portion includes a hollow portion to compress the shock absorbing portion by the impact.

According to an example related to the present invention, the hollow part includes at least one hole formed in the thickness direction of the terminal body.

According to an example related to the present invention, the buffer part is formed to surround at least a part of the edge of the display panel. The hollow portion extends to correspond to the shape of the buffer portion in the buffer portion so that the buffer portion can be compressed.

According to an example related to the present invention, the buffer part is formed of an elastic material.

According to an example related to the present invention, the frame includes a first member extending in the first direction and a second member extending in a second direction crossing the first direction. The buffer part is formed in an area where the first and second members meet.

According to an example related to the present invention, the frame and the buffer part are integrally formed by injection molding.

According to an example related to the present invention, a predetermined spaced space is formed between the display panel and the frame. The buffer part is formed to fill at least a portion of the separation space to limit the movement of the display panel.

According to the present invention of the configuration described above, the shock absorbing portion to reduce the damage to the display panel to reduce the shock transmitted to the display panel.

The buffer unit may restrict the movement of the display panel within the frame to stably receive the display panel.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention;
Figure 2a is a front perspective view of a mobile terminal related to the present invention.
Figure 2b is a rear perspective view of the mobile terminal of Figure 2a.
3 is an exploded view of the mobile terminal of FIG. 2A viewed from the front;
4A-4C are enlarged views of A in accordance with each embodiment of FIG. 3.
FIG. 5 is a cross-sectional view of the frame of FIG. 4A taken along BB. FIG.
6a to 6c is an enlarged view according to each embodiment of the buffer unit including a buffer projection.
7A to 7B are enlarged views according to each embodiment of the buffer part including the hollow part.
8 is an experimental graph for explaining shock mitigation by the buffer unit.

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), and navigation. 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 a broadcast signal and / or broadcast related information from an external broadcast management server through a broadcast channel.

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

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

The broadcast related information may exist in various forms. For example, it may exist in the form of Electronic Program Guide (EPG) of Digital Multimedia Broadcasting (DMB) or Electronic Service Guide (ESG) 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. Wireless Internet technologies may include Wireless LAN (Wi-Fi), Wireless Broadband (Wibro), World Interoperability for Microwave Access (Wimax), High Speed Downlink Packet Access (HSDPA), and the like.

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 call 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 pressure / capacitance), a jog wheel, a jog switch, and the like.

The sensing unit 140 senses the current state of the mobile terminal 100 such as the open / close state of the mobile terminal 100, the position of the mobile terminal 100, the presence or absence of user contact, the orientation of the mobile terminal, And generates a sensing signal for controlling the operation of the mobile terminal 100. For example, when the mobile terminal 100 is in the form of a slide phone, it may sense whether the slide phone is opened or closed. In addition, whether the power supply unit 190 is supplied with power, whether the interface unit 170 is coupled to the external device may be sensed. 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 unit 151 of the terminal body.

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

When the display unit 151 and a sensor for detecting a touch operation (hereinafter, referred to as a touch sensor) form a mutual layer structure (hereinafter referred to as a touch screen), the display unit 151 may be configured in addition to an output device. Can also be used as an input device. The touch sensor may have the form of, for example, a touch film, a touch sheet, a touch pad, or the like.

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

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

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

Examples of the proximity sensor include a transmission photoelectric sensor, a direct reflection photoelectric sensor, a mirror reflection photoelectric sensor, a high frequency oscillation proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, and an infrared proximity sensor. And to detect the proximity of the pointer by the change of the electric field along the proximity of the pointer when the touch screen is electrostatic. In this case, the touch screen (touch sensor) may be classified as a proximity sensor.

Hereinafter, for convenience of explanation, the act of allowing the pointer to be recognized without being in contact with the touch screen so that the pointer is located on the touch screen is referred to as a "proximity touch", and the touch The act of actually touching the pointer on the screen is called "contact touch." 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 sound 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, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, and the like. 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. Vibration is a representative example of the haptic effect generated by the haptic module 154. The intensity and pattern of the vibration generated by the hit module 154 can be controlled. For example, different vibrations may be synthesized and output or sequentially output.

In addition to the vibration, the haptic module 154 may be used for stimulation such as a pin array vertically moving with respect to the contact skin surface, a jetting force or suction force of air through an injection or inlet, grazing to the skin surface, contact of an electrode, and electrostatic force. Various tactile effects can be generated, such as effects by the endothermic and the reproduction of a sense of cold using the elements capable of endotherm or heat generation.

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 include application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), and the like. It may be implemented using at least one of processors, controllers, micro-controllers, microprocessors, and electrical units for performing other functions. The described embodiments may be implemented by the controller 180 itself.

According to the software implementation, embodiments such as the procedures and functions described herein may be implemented as 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. [

The portable terminal according to the present invention may include at least two cameras to capture a stereoscopic image, and furthermore, the portable terminal according to the present invention may include a display unit capable of displaying a stereoscopic image.

The stereoscopic image that can be implemented on the display unit 151 of the portable terminal according to the present invention is based on whether different images are provided in both eyes, and the same image is provided in both eyes (monoscopioc) and different images in both eyes. This is divided into streoscopic.

The method of providing the same image in both eyes (monoscopioc) has the advantage that it can be implemented as a general display unit. More specifically, the controller 180 arranges a polyhedron generated through one or more points, lines, planes, or a combination thereof in a virtual three-dimensional space, and displays the image viewed at a specific time point on the display unit 151. This is how you do it. Therefore, the substantial part of such a stereoscopic image can be referred to as a planar image.

The method in which different images are provided to both eyes (streo scopic) is a method using the principle of feeling a three-dimensional effect when a human sees an object with the naked eye. That is, when two eyes of a person see the same object by the distance between each other, they may see different plane images. These different planar images are delivered to the brain through the retina, and the brain can fuse them to feel the depth and reality of the stereoscopic image. Therefore, although there are some differences for each person, binocular disparity due to the distance between the two eyes is felt three-dimensional.

The present invention includes two cameras for capturing the left-eye image and the right-eye image respectively photographed using binocular disparity to form a three-dimensional effect.

FIG. 2 is a perspective view of a mobile terminal according to an embodiment of the present invention, and FIG. 3 is a rear perspective view of the mobile terminal shown in FIG. 2. Referring to FIG.

1, 2A and 2B, the mobile terminal 200 is provided with 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 coupled to be movable relative to each other. Further, the mobile terminal described herein may be any portable electronic device having a camera and flash, for example, 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, a rear case 202 covering a surface opposite to the front case, and a battery cover 203 coupled to the rear case 202. 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 injecting synthetic resin or may be formed of a metal material, for example, a metal material such as stainless steel (STS) or titanium (Ti).

The front of the terminal body includes a display unit 210, the first sound output unit 211, the input operation unit 217 and the 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. Referring to FIG. 2, 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 input operation unit 217 is operated to receive a command for controlling the operation of the mobile terminal 200, and may include a plurality of operation units. The manipulation units may also be referred to collectively as a manipulating portion, and may be employed in any manner as long as the user is in a tactile manner with a tactile feeling.

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 .

Content input by the input operation unit 217 may be variously set. For example, to enter start, end, scroll, and the like.

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 210. [

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 rear case 202 is provided with a side key 214, an interface unit 215, a sound input unit 213, and the like.

The side key 214 may be collectively referred to as an operation unit, and may receive 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, the side keys 214 may be used to control commands of the image input units 216 and 221, adjust the volume of sound output from the audio output unit 211, or switch the display unit 210 to the touch recognition mode. Can be input.

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 unit 215 is a channel through which the mobile terminal 200 related to the present invention can exchange data with an external device. For example, the interface unit 215 may be a wired or wireless connection terminal for connecting to an earphone, a port for short-range communication (for example, an IrDA port, a Bluetooth port, a wireless LAN port A wireless LAN port) or the like, or power supply terminals for supplying power to the mobile terminal 200. The interface unit 215 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), a memory card for storing information.

A power supply unit 240 and a rear camera unit 221 are disposed on the rear surface of the terminal body.

The power supply unit 240 supplies power to the mobile terminal 200. The power supply unit 240 may be built in the terminal body or may be detachable from the outside of the terminal body.

A flash (not shown) and a mirror (not shown) may be disposed adjacent to the rear camera unit 221. The flash illuminates the subject toward the subject when the subject is photographed by the rear camera unit 221.

A mirror (not shown) may be disposed adjacent to the flash. 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. [

In addition, the rear camera unit 221 may have a photographing direction substantially opposite to the front camera unit 216 disposed on the front surface, 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 221 may be installed in the terminal body in a rotatable or pop-up manner.

3 is an exploded view of the mobile terminal of FIG. 2A viewed from the front;

2A and 3, the mobile terminal includes a window 210a and a display panel 210b which are coupled to one surface of the front case 201 and constitute the display unit 210.

The main circuit board 205 is mounted on the display panel 210b. The main circuit board 205 may be configured as an example of the controller 180 (see FIG. 1) for operating various functions of the mobile terminal 200. The main circuit board 205 is formed to process an input signal.

In other words. The main circuit board 205 is electrically connected to the sound output module 211, the display panel 210b, the battery 240, and the front and rear camera units 216 and 221.

The antenna unit (not shown) is mounted to the rear case 202 and electrically connected to the circuit board 205. It is made to process a radio signal corresponding to the radio electromagnetic waves transmitted and received by the antenna unit. The antenna unit mainly transmits and receives a radio signal through the battery cover 203. The antenna unit is configured to transmit and receive radio signals for wireless communication, a global positioning system (GPS), a Media Forward Link Only (MediaFLO), and the like, and may be configured as a main antenna unit of a mobile terminal. The battery 240 may be detachably formed and separated from the terminal body.

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 configured to convert a change in voltage or the like generated at 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 the present 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 3D display, or the like. Can be.

The frame 210c is formed along an edge of the display panel 210b and supports the display panel 210b. The display panel 210b is integrally formed on the frame 210c and installed in the rear case 202.

A buffer unit 300 (see FIG. 4A) for buffering the impact applied to the display panel 210b may be formed in the frame 210c. Hereinafter, a detailed structure of the buffer unit 300 (see FIG. 4A) will be described.

4A to 4C are enlarged views of A according to each embodiment of FIG. 3.

3 and 4A, the frame 210c is formed along an edge of the display panel 210b. A predetermined space is formed between the inner circumferential surface of the frame 210c and the display panel 210b. This is a space for fixing the display panel 210b to the frame 210c.

The display panel 210b is formed to include two sides that intersect. The frame 210c includes a first area extending in a first direction and a second area extending in a direction crossing the first direction to surround the display panel 210b.

A depression recessed from the inner circumferential surface of the frame 210c facing the display panel 210b is formed in the frame 210c. The depression may be formed in a region where the first and second regions meet. That is, it may be formed in the corner regions of the frame 210c and the display panel 210b. In addition, the display panel 210b may be formed to correspond to at least one corner of the display panel 210b.

The buffer part 300 is formed in the depression. The buffer part 300 may be formed to protrude from an inner circumferential surface of the frame 210c. In addition, the buffer 300 may be formed to fill at least a portion of the separation space.

The buffer part 300 may be formed of an elastic material. For example, the buffer 300 may be formed of a rubber material. Therefore, it may be alleviated rather than colliding with the frame 210c having high intensity, and the buffer part 300 may guide the display panel 210b to be in position.

However, the buffer unit 300 is not only formed at the corners, but may be formed along the inner circumferential surface of the frame 210b facing the display panel 210b.

Therefore, when the display panel 210b is moved by an external impact, an edge of the display panel 210b collides with the buffer part 300. Since the buffer 300 is formed of an elastic material, the shock can be alleviated, and the display panel 210b can be placed back into place.

In addition, the buffer unit 300 may be formed to fill the space between the frame 210c and the display panel 210b to limit the movement of the display panel 210b within the frame 210c. have. In addition, when assembling the display panel 210b to the frame 210c, the position of the display panel 210b may be guided.

Referring to FIG. 4B, the frame 210c is formed along an edge of the display panel 210b. The frame 210c includes a recessed portion formed by recessing from at least a portion of an outer circumferential surface of the frame 210c.

The depression may be formed in a region where the first and second regions intersect, but is not limited thereto.

A buffer unit 300 is formed in the recess. The buffer part 300 may be formed to protrude from the outer circumferential surface of the frame 210c to fill at least a part of the space between the frame 210c and the rear case 202.

When the display panel 210b coupled to the frame 210c moves due to an external impact, the rear case 202 and the buffer part 300 collide first. Since the shock absorbing part 300 is formed of an elastic material, the shock is alleviated by the shock absorbing part 300. In addition, the frame 210c and the display panel 210b are moved to be disposed in place.

Referring to FIG. 4C, the depression may be recessed from the outer circumferential surface and the inner circumferential surface of the frame 210c. That is, the first and second regions may be formed separately.

Therefore, the shock absorbing unit 300 may collide with the internal structure of the mobile terminal by an external shock to mitigate the shock transmitted to the display panel 210b.

FIG. 5 is a cross-sectional view of the frame of FIG. 4A taken along line B-B. FIG.

4A to 4C and 5, the buffer part 300 may be integrally formed by double injection molding of the frame 210c. The shock absorbing part 300 may protrude from one end of the shock absorbing part 300, and a fixing protrusion 301 may be formed to fix the position of the shock absorbing part 300 during the injection molding. Since the buffer part 300 is formed at the time of injection molding of the frame 210b, a separate installation process is unnecessary and the manufacturing process is simplified.

The buffer unit 300 according to the embodiment of the present invention is integrally formed in the frame 210c, between the frame 210c and the display panel 210b, and between the frame 210c and the rear case 202. It is formed to utilize the space between them. Therefore, the space occupied by the buffer member is smaller than that between the spaced spaces, so that the size of the mobile terminal can be reduced and the internal space can be secured.

6A to 6C are enlarged views according to embodiments of a buffer unit including a buffer protrusion.

Referring to FIG. 6A, the buffer part 300 includes a first surface 301 adjacent to the display panel 210b and a second surface 302 facing the first surface 301. The first and second surfaces 301 and 302 may be connected to each other, and may include a third surface 303 overlapping the front or rear surface of the terminal body.

At least one buffer protrusion 310 is formed on the first surface 301. The buffer protrusion 310 is formed to be smaller than the separation space. The buffer protrusion 310 may be formed in a trapezoidal shape, a triangular pyramid shape, a circular shape, or the like. The buffer protrusion 310 may be formed of an elastic material and integrally formed with the buffer part 300. An end portion of the buffer protrusion 310 may be formed to contact the display panel 210b to elastically fix the position of the display panel 210b. In addition, the plurality of buffer protrusions 310 may be formed and arranged in a line.

Since the buffer protrusion 310 is compressed to a greater extent than the body region of the buffer unit 300, the shock absorbing protrusion 310 may absorb more impact applied to the display panel 210b. Therefore, the impact applied to the display panel 210b can be reduced, and the damage thereof can be reduced.

Referring to FIG. 6B, the buffer protrusions 310 may be arranged in two rows. The buffer unit 300 according to the present embodiment is substantially the same as the buffer unit 300 of FIG. 6A except for an arrangement relationship of the buffer protrusion 310. Therefore, the overlapping configuration is replaced with the description of FIG. 6A.

The plurality of buffer protrusions 310 are arranged in two rows, and spaced spaces are formed between the rows. The display panel 210b may be inserted into the separation space. That is, the buffer protrusions 310 arranged in two rows may be elastically fixed to prevent the display panel 210b from moving and may be supported so as not to be damaged by shocks applied from the front and rear surfaces of the mobile terminal. .

Therefore, the shock applied to the display panel 210b may be absorbed and the damage thereof may be reduced.

Referring to FIG. 6C, the buffer protrusion 310 is formed on the second surface 302 of the buffer part 300. The buffer protrusion 310 is formed to face the rear case 202 surrounding the frame 210c. It is applied outside the mobile terminal and absorbs the shock transmitted to the rear case 202.

Therefore, the impact applied to the display panel 210b supported by the frame 210c may be reduced, and the damage of the display panel 210b may be reduced.

In addition, the buffer protrusion 310 may be formed to contact the rear case 202. That is, the frame 210c may be stably fixed to the rear case 202. Therefore, the movement of the display panel 210b may be prevented in the terminal body.

4C, 6A, and 6B, as shown in FIG. 4C, when both the first and second surfaces 301 and 302 of the buffer part 300 are exposed from the frame 210c. The buffer protrusion 310 may be formed on both the first and second surfaces 301 and 302. Accordingly, the impact applied to the display panel 210b supported by the frame 210c may be further reduced.

7A to 7B are enlarged views according to embodiments of the buffer part including the hollow part. 8 is an experimental graph for explaining shock mitigation by the buffer unit including a hollow part.

Referring to FIG. 7A, a hollow part is formed in the buffer part 300. According to the present embodiment, the hollow part includes a plurality of holes 330. The holes 330 may be spaced apart from each other and arranged along the first and second regions. 3 and 7A, the hole may be formed in the thickness direction of the mobile terminal. That is, the hole is formed to penetrate the third surface 303.

The hole 303 may be deformed due to an external impact. That is, when the buffer part 300 is compressed by an external impact, the shape of the hole 303 may be deformed to improve the degree of compression. Therefore, it is possible to further improve the absorption of the impact from the outside, and to reduce the impact transmitted to the display panel 210b.

The shape and density of the holes 303 are not limited to those shown in the drawings. The cross section of the hole 303 may be formed in various shapes. In addition, the hole 303 may be partially formed on the first and second surfaces 301 and 302.

Referring to FIG. 8, the dotted line is a result of measuring the acceleration of the display panel when an impact is applied to the display panel supported by the frame having no buffer, and the solid line is a frame including the buffer 300 having a hole 303 formed therein. When the impact is applied to the display panel supported by the result of measuring the acceleration of the display panel. The difference in acceleration indicates the difference in the amount of impact the display panel receives.

When the shock is transmitted to the display panel, the acceleration of the display panel increases rapidly. Comparing the dotted line and the solid line in that the acceleration is sharply increased, it can be seen that the acceleration is significantly larger than the acceleration of the solid line in the case of the dotted line. That is, it can be seen that the impact applied to the display panel is reduced by the frame including the buffer part.

Referring to FIG. 7B, the hollow part 340 according to the present exemplary embodiment may be formed to extend along the first and second regions. That is, the hollow part 340 may be formed to extend in two directions that intersect. The hollow part 340 is formed inside the buffer part 300. However, the present invention is not limited thereto and may be formed to be recessed in an outer surface of the buffer part 300.

When the hollow part 340 is formed to extend in the first and second directions, the area where the first and second areas meet, that is, the corner area is compressed. Accordingly, damage to the edge area of the display panel 210b may be reduced by reducing the impact.

6A to 6C and 7A to 7B, the buffer part 300 may include at least one of the buffer protrusion 310 and the hollow part. That is, the buffer 300 may be provided with the buffer protrusion 310 and the hollow at the same time.

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 (10)

A display panel disposed inside the terminal body;
A frame formed to surround an edge of the display panel to support the display panel;
A depression formed by being recessed from at least one surface of the frame; And
And a buffer unit formed in the recess and protruding from at least one of an outer circumferential surface and an inner circumferential surface of the frame to mitigate an impact applied to the display panel from the outside. The mobile terminal of claim 1, further comprising a buffer protrusion protruding from a surface exposed from the frame of the buffer portion. The method of claim 2, wherein the buffer protrusions are arranged in two rows with a predetermined separation space,
Mobile display, characterized in that the display panel is inserted into the space. The mobile terminal of claim 1, wherein the shock absorber comprises a hollow part to compress the shock absorber by the impact. The mobile terminal of claim 4, wherein the hollow part includes at least one hole formed in a thickness direction of the terminal body. The display device of claim 4, wherein the buffer part surrounds at least a portion of an edge of the display panel.
The hollow portion is a mobile terminal, characterized in that the extension is formed to correspond to the shape of the buffer portion in the buffer portion so that the buffer portion can be compressed. The mobile terminal of claim 1, wherein the buffer part is formed of an elastic material. The method of claim 1,
The frame includes a first member extending in the first direction and a second member extending in a second direction crossing the first direction,
And the buffer part is formed in an area where the first and second members meet. The method of claim 1,
The frame and the buffer portion is a mobile terminal, characterized in that formed integrally by injection molding. The method of claim 1,
A predetermined space is formed between the display panel and the frame;
The buffer unit is formed to fill at least a portion of the separation space to limit the movement of the display panel.

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