KR101729104B1 - Mobile terminal - Google Patents

Abstract

The present invention provides a plasma display panel comprising a body having a window, a first electrode film mounted on one surface of the window and configured to sense a touch point in a first direction, and a second electrode film formed to cover the first electrode film, A spacer disposed between the first and second electrode films so that an air layer is formed by the separation of the first and second electrode films; and a spacer disposed between the first and second electrode films, And a protrusion protruding from one surface of the window to support the first electrode film so as to separate the first electrode film and the window.

Description

[0001] MOBILE TERMINAL [0002]

The present invention relates to a mobile terminal capable of sensing a touch input.

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

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

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

As an improvement of the structural part of the terminal, it can be considered to improve the appearance of the touch sensor.

The present invention provides a mobile terminal in which the appearance of a touch sensor is formed more flatly.

In addition, the present invention provides a mobile terminal in which a touch input can be detected more stably.

According to an aspect of the present invention, there is provided a mobile terminal including a main body including a window, a first electrode mounted on one surface of the window and configured to sense a touch point in a first direction, A second electrode film formed to cover the first electrode film and sensing a touch point in a second direction intersecting the first direction; and an air layer formed by the separation of the first and second electrode films A spacer disposed between the first and second electrode films so as to separate the first electrode film and the window from each other, and a protrusion protruding on one surface of the window to support the first electrode film.

As one example related to the present invention, the window includes a central region and an edge region. The central region is formed to be spaced apart from the first electrode film by the protrusion, the edge region is formed to surround the central region, and the protrusion is disposed in the edge region.

As another example related to the present invention, the protrusion includes an adhesive member configured to adhere the window and the first electrode film, or a protruding member disposed on the surface of the window. The central region and the edge region form a step with respect to each other such that the protrusion is integrated with the window, and the protrusion can be formed by the step.

In another example related to the present invention, the mobile terminal includes a charging member. The filling member is disposed between the first electrode film and the window so as to fill the air layer between the first electrode film and the window and to join the first electrode film and the window, and has a soft and viscous synthetic resin .

The mobile terminal according to at least one embodiment of the present invention configured as described above has a deformed space of the first electrode film as the first electrode film is separated from the central region of the window. In addition, the second electrode layer is prevented from being folded by the air layer, and the appearance of the touch screen can be further flattened.

Further, the present invention improves the contact reliability of the electrode films according to the user's touch input through the filling member, and further realizes the sensing of the touch input more stably.

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 taken along the line IV-IV in FIG.
5 to 7 are cross-sectional views illustrating other embodiments of a mobile terminal according to the present invention.

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 suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role.

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

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

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

Hereinafter, the components will be described in order.

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

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

The broadcast channel may include a satellite channel and a terrestrial channel. The broadcast management server may 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 And a Digital Broadcasting System (ISDB-T) (Integrated Services Digital Broadcast-Terrestrial). Of course, the broadcast receiving module 111 may be adapted to other broadcasting systems as well as the digital broadcasting system described above.

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

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

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

The short-range communication module 114 refers to a module for short-range communication. Bluetooth, Radio Frequency Identification (RFID), infrared data association (IrDA), Ultra Wideband (UWB), ZigBee, and the like can be used as a short range communication technology.

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

Referring to FIG. 1, an A / V (Audio / Video) input unit 120 is for inputting an audio signal or a video signal, and may include a camera 121 and a microphone 122. The camera 121 processes 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 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.

(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 a suction force of the air through the injection port or the suction port, a touch on the skin surface, contact with an electrode, And various tactile effects such as an effect of reproducing a cold sensation using an endothermic or exothermic element can be generated.

The haptic module 154 can be implemented not only to transmit the tactile effect through the direct contact but also to allow the user to feel the tactile effect through the muscular sensation of the finger or arm. 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 may be a path through which power from the cradle is supplied to the mobile terminal 100, or various command signals input by the user to the cradle may be transmitted It can be a passage to be transmitted to the terminal. The various command signals or the power source input from the cradle may be operated as a signal for recognizing that the mobile terminal is correctly mounted on the cradle.

The 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. [

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

The disclosed mobile terminal 200 includes a bar-shaped terminal body. However, the present invention is not limited thereto, and can be applied to various structures such as a slide type, a folder type, a swing type, and a swivel type in which two or more bodies are relatively movably coupled.

The body includes a case (a casing, a housing, a cover, and the like) which forms an appearance. In this embodiment, the case may be divided into a front case 201 and a rear case 202. [ Various electronic components are embedded in the space formed between the front case 201 and the rear case 202. At least one intermediate case may be additionally disposed 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.

A display unit 251, an audio output module 260, a camera 221, user input units 231, 232, and 233, and the like may be disposed in the front body 201.

The display unit 251 occupies most of the main surface of the front case 201. The sound output module 260 and the camera 221 are disposed in an area adjacent to one end of the both ends of the display unit 251.

Various kinds of time information can be displayed on the display unit 251. These pieces of information can be displayed in the form of letters, numbers, symbols, graphics, or icons.

At least one of the letters, numbers, symbols, graphics, or icons may be displayed in a predetermined arrangement for inputting such information, thereby being implemented as a keypad. Such a keypad may be called a so-called " soft key ".

The display unit 251 may be operated as an entire area or divided into a plurality of areas. In the latter case, the plurality of areas can be configured to operate in association with each other.

The user input unit 230 is operated to receive a command for controlling the operation of the portable terminal 200 and may include a plurality of operation units 231, 232, and 233. The operation units 231, 232, and 233 may be collectively referred to as a manipulating portion and may be employed in any manner as long as the tactile manner in which the user operates in a tactile sense.

Contents input by the first to third operation units 231, 232, and 233 can be variously set. For example, the first operation unit 231 receives commands such as start, end, scroll, and the like, and places the sound output module 260 at both ends of the display unit 251 in an area adjacent to the other end do.

The second and third operation units 232 and 233 are configured to receive commands such as the adjustment of the size of the sound output from the sound output module 260 or the switch to the touch recognition mode of the display unit 251.

Referring to this figure, a wired / wireless headset port 271 and a wired / wireless data port 272 may be disposed on one side of the mobile terminal. The ports 271 and 272 are configured as an example of the interface 170 (see FIG. 1).

Referring to FIG. 2B, a camera 221 'may be further mounted on the rear surface of the terminal body, that is, the rear case 202. The camera 221 'may have a photographing direction substantially opposite to the camera 221 (see FIG. 2A), and may be a camera having different pixels from the camera 221.

For example, the camera 221 has a low pixel so that it is easy to capture a face of a user in the case of a video call or the like and transmits the face to the other party, and the camera 221 ' It is preferable to have a large number of pixels. The cameras 221 and 221 'may be installed in the terminal body such that they can be rotated or pop-up.

A flash 223 and a mirror 224 are additionally disposed adjacent to the camera 221 '. The flash 223 illuminates the subject when the subject is photographed by the camera 221 '. The mirror 224 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 using the camera 221 '.

An acoustic output module may be additionally disposed on the rear surface of the terminal body. The sound output module may implement a stereo function together with the sound output module 260 (see FIG. 2A) of the front case, and may be used for implementing a speakerphone mode during a call.

An antenna for receiving a broadcast signal may be additionally disposed on the side of the terminal body in addition to an antenna for a call or the like. An antenna constituting a part of the broadcast receiving module 111 (see FIG. 1) can be installed to be able to be drawn out from the terminal body.

Referring to this figure, a terminal body may include a microphone 222, an interface 270, and the like. A microphone 222 is disposed in an area adjacent to the one end of the display unit where the acoustic output module 260 is disposed.

A user input unit 232, a connection port 273, and the like may be disposed on the side surfaces of the front case 201 and the rear case 202.

The connection port 273 receives data from an external device or receives power from the external device and transfers the data to each component in the mobile terminal 200 or allows data in the mobile terminal 200 to be transmitted to an external device. The connection port 273 may be configured as an example of the interface 170 (see FIG. 1).

A power supply unit 290 for supplying power to the mobile terminal 200 is mounted on the terminal body. The power supply unit 290 may be built in the terminal body or may be detachable from the outside of the terminal body.

Referring again to FIG. 2A, the display unit 151 has a mutual layer structure with a sensor (hereinafter referred to as a 'touch sensor') for sensing a touch operation to form a touch screen.

Hereinafter, the detailed structure of the touch screen will be described with reference to FIGS. 3 and 4. FIG. FIG. 3 is an exploded view of the mobile terminal of FIG. 2a, and FIG. 4 is a cross-sectional view taken along the line IV-IV of FIG.

Referring to FIG. 3, a window 251b is coupled to one surface of the front case 201. As shown in FIG. The window 251b is made of a material through which light can be transmitted, for example, a light transmitting synthetic resin, a tempered glass, or the like. However, the window 251b may include a portion that can not transmit light. As shown in the figure, the pattern film 251c may be formed so as to cover the window separately. The pattern film 251c may be made so that its center is transparent and its edges are opaque.

A display 251a may be mounted on the rear surface of the window 251b. The portion through which the light of the window 251b is transmitted may have an area corresponding to the display 251a. Accordingly, the user can recognize the time information output from the display 251a from the outside.

The circuit board 217 may be mounted on the rear case 202. [ The circuit board 217 may be configured as an example of a controller 180 (see FIG. 1) for operating various functions of the mobile terminal. As shown in the figure, the acoustic output element 262, the camera 221, and the like can be mounted on the circuit board 217. The acoustic output element 262 may be, for example, a speaker, a receiver, or the like.

According to the drawing, the touch sensor S may be mounted on the window 251b.

The light transmitting portion of the window 251b may form a central region 252 through which the touch sensor S can be input. In contrast, a portion of the window 251b through which the light is transmitted may be an edge region 253 surrounding the central region 252.

The touch sensor S is formed to sense a touch input and is made of light transmissive. The touch sensor S may be mounted on the front surface of the window 251b and may be configured to convert a change in voltage or the like occurring in a specific portion of the window 251b into an electrical input signal.

The touch sensor S includes first and second electrode films 310 and 320.

The first and second electrode films 310 and 320 may be a light transmissive conductive film such as an indium tin oxide (ITO) film, a carbon nanotube (CNT) film, or the like.

The first electrode layer 310 is mounted on one side of the window 251b and the second electrode layer 320 is spaced apart from the first electrode layer 310 to cover the first electrode layer 310 . A spacer 331 is disposed between the first electrode film 310 and the second electrode film 320 so that the first electrode film 310 and the second electrode film 320 are spaced apart from each other, A pattern film 251c is mounted on the front surface of the electrode film 320. [

The first electrode layer 310 is formed to sense the touch point with respect to the first direction. For example, the first direction may be the Y direction, and the first electrode layer 310 may be provided with electrodes on both sides of the central region 252 to form a potential difference in the first direction.

A conductive pattern is formed on the second electrode layer 320 to sense a touch point with respect to a second direction crossing the first direction. More specifically, the electrodes are arranged in the second electrode layer 320 in a direction crossing the electrodes of the first electrode layer 310 to form a potential difference in the second direction. Accordingly, the second direction may be the X direction, and the electrodes may be positive and negative electrodes with respect to the X direction, respectively.

The first and second electrode films 310 and 320 are electrically connected to the circuit board 217, respectively. The circuit board 217 is provided with a detection unit, and the detection unit is connected to the first and second electrode films 310 and 320 to detect a touch input to the touch sensor S, respectively.

For example, when the user touches the first electrode film 310, the first electrode film 310 comes into contact with the second electrode film 320 while being elastically deformed. The first and second electrode films 310 and 320 are electrically conductive at the point of contact, and the detection unit detects the Y direction voltage at the point of contact. The coordinates in the Y direction are calculated using the detected voltage, the X direction coordinates are calculated in the same way, and the point at which the touch input is applied is detected based on the coordinates in the X and Y directions.

4, an air layer 332 is formed between the first and second electrode layers 310 and 320 as the first and second electrode layers 310 and 320 are spaced apart by the spacers 331 do. If air is excessively filled in the air layer 332, the second electrode film 320 is blown out to the outside, which is referred to as a folding phenomenon.

Referring to FIGS. 3 and 4, protrusions 340 protrude from one side of the window 251b to separate the first electrode layer 310 from the window 251b.

The protrusion 340 supports the first electrode film 310 and forms a space between the first electrode film 310 and the window 251b. More specifically, the protrusion 340 is disposed in the edge region 253 such that the central region 252 of the window 251b is separated from the first electrode film 310 by the protrusion 340.

The protrusion 340 may be, for example, an adhesive member 341 configured to adhere the window 251b and the first electrode film 310. [ The adhesive member 341 may have a specific thickness, such as a double-sided tape, and may be a part for joining the window 251b and the first electrode film 310 together. According to the example, the edge region 253 of the window 251b forms a closed loop, and the adhesive member 341 also forms a closed loop corresponding thereto. However, the present invention is not limited thereto, and the adhesive member 341 and the like may form an open loop.

A space is formed between the first electrode layer 310 and the central region 252 of the window 251b and the first electrode layer 310 is formed in the air filled in the air layer 332 And is then blown toward the window 251b. This makes it possible to mitigate or prevent the call-up phenomenon of the touch screen.

5 to 7 are sectional views showing other embodiments of a mobile terminal according to the present invention. Hereinafter, a description of the same or similar configuration as that of the embodiment shown in Figs. 3 and 4 will be omitted.

Referring to Fig. 5, the protrusion 440 includes a protruding member 442 disposed on the surface of the window 451b. The protruding member 442 is in the form of a plate having a specific thickness, and both surfaces are attached to the window 451b and the first electrode film 410, respectively, by an adhesive or the like. Further, the protruding member 442 may be formed in an annular shape corresponding to the edge region 453 of the window 451b.

Referring to FIG. 6, the protrusion 540 may be formed integrally with the window 551b. For example, the central region 552 and the edge region 553 of the window 551b form steps relative to each other. That is, the projections 540 are formed by the stepped portions. In this case, the edge regions 553 can be the projections 540.

As shown in the drawing, the central region 552 is spaced apart from the first electrode layer 510 by the step difference, so that the first electrode layer 510 can be pulled up toward the window 551b.

Referring to FIG. 7, the first electrode layer 610 and the window 651b are bonded to each other with the center region 652 being spaced apart from the first electrode layer 610 by the adhesive member 641. In addition, a filling member 660 is disposed between the first electrode film 610 and the window 651b so as to fill the air layer between the first electrode film 610 and the window 651b.

The filling member 660 is formed of a synthetic resin material having a viscosity to couple the first electrode film 610 and the window 651b. In addition, the filling member 660 has ductility to allow the first electrode film 610 to float. As an example of such a filling member 660, the filling member 660 may be a transparent optical film (OCA film).

If the hard material contacts the first electrode layer 610, only the second electrode layer 620 will expand outward due to the air charged in the air layer 632, The first electrode film 610 can be expanded together with the film 610. [ As a result, it is possible to alleviate the call-up phenomenon of the touch screen. In addition, since the air layer is removed between the first electrode layer 610 and the window 651b due to the filling member 660, the visibility of the display can be further improved.

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 (5)

A body having a window;
A first electrode film formed to cover the window with the window and the spaced space therebetween, the first electrode film being formed to sense a touch point with respect to the first direction;
A second electrode film formed to cover the first electrode film and sensing a touch point in a second direction crossing the first direction;
A spacer disposed between the first and second electrode films to form an air layer by separating the first and second electrode films; And
Wherein the first electrode film is formed to protrude from one side of the window and support one region of the first electrode film, and the first electrode film is bent toward the window by the air filled in the air layer formed by the spacer, And a projection for forming the spacing space between the first electrode films. The method according to claim 1,
In the above window,
A central region spaced apart from the first electrode film by the protrusions; And
And an edge region that is formed to surround the central region and in which the protrusion is disposed. 3. The method of claim 2,
The projection
An adhesive member configured to adhere the window and the first electrode film, or a protruding member disposed on a surface of the window. 3. The method of claim 2,
Wherein the central region and the edge region form a step with respect to each other such that the protrusion is integrated with the window, and the protrusion is formed by the step. The method according to claim 1,
And an air layer between the first electrode layer and the window, and is disposed between the first electrode layer and the window so as to combine the first electrode layer and the window, and is formed of a soft and viscous synthetic resin material And a charging member for charging the battery.

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