KR20150011255A - Mobile terminal - Google Patents

Abstract

The present invention relates to a mobile terminal having a divided touch pattern and therefore having a narrower bezel. According to the present invention, the mobile terminal includes: a touch detection part placed under the window, and having a touch pattern with a plurality of touch regions for detecting a touch; a first signal-delivering part passing through the edge of the touch detection part, connected to a part of the touch pattern in the touch regions, and joining together on one side of the touch detection part; a second signal-delivering part passing through the edge of the touch detection part, connected to the remaining part of the touch pattern in the touch regions, and joining together on the other side of the touch detection part; a first flexible printed circuit board and a second flexible printed circuit board to which the first and second signal-delivering parts are connected respectively; and a first connector and a second connector connecting the first and second flexible printed circuit boards to a printed circuit board respectively.

Description

[0001] MOBILE TERMINAL [0002]

The present invention relates to a mobile terminal having a reduced width of a side bezel.

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

As the functions of the mobile terminal are diversified, for example, the mobile terminal has complicated functions such as photographing and video shooting, playing music and video files, receiving games and broadcasting, and is implemented as a multimedia player .

In order to implement complex functions in multimedia devices, various new attempts have been made in terms of hardware or software. For example, a user interface environment is provided for a user to easily and conveniently search for or select a function.

In addition, mobile terminals are regarded as personal items for expressing their personalities, and various designs are required. In recent years, there is an increasing tendency to simplify the design that minimizes the protruded portions on the surface of the mobile terminal. Accordingly, the case where a touch screen is applied to a mobile terminal as input means for inputting information to the mobile terminal is gradually increasing.

On the other hand, as the mobile terminal becomes larger and larger, the number of the touch window channels is increased. As a result, the width of the touch pattern is increased and the width of the bezel is increased.

The present invention is to reduce the width of a bezel in which a touch pattern is formed by separately forming a touch pattern on both sides in a mobile terminal to which a touch screen is applied.

According to an embodiment of the present invention, there is provided a touch sensing device comprising: a touch sensing part disposed at a lower portion of a window and divided into a plurality of touch areas to form a touch pattern for sensing a touch; A first signal transfer unit connected to a part of the touch patterns and joined at one side of the touch sensing unit and a second signal transfer unit connected to a touch pattern of the remaining one of the touch areas via the edge area of the touch sensing unit, A second signal transmission unit, a first flexible printed circuit board and a second flexible printed circuit board to which the first and second signal transmission units are respectively connected, and a second flexible printed circuit board and a second flexible printed circuit board which connect the first and second flexible printed circuit boards to the printed circuit board A mobile terminal including a first connector and a second connector is provided.

According to an embodiment of the present invention, the touch pattern may include first patterns extending in a first direction across the touch sensing unit, and second patterns extending in a second direction crossing the first direction, The first patterns and the second patterns are arranged on the same plane, and the patterns of either the first patterns or the second patterns are connected to each other by bridges.

According to an embodiment of the present invention, a signal transmission unit is alternately connected to one side or the other side of the touch pattern, and the first and second connectors may be connected through a third flexible printed circuit board connected to the printed circuit board have.

According to an embodiment of the present invention, the plurality of touch areas may be divided into two or more areas along the length direction of the touch sensing part, and may be divided into two or more areas along the width direction of the touch sensing part.

According to an embodiment of the present invention, the touch sensing unit may include a wiring part stacked on a display part and bent at a side of the display part to cover at least one side of the display part, The transmission portion may be formed in the wiring portion.

According to an embodiment of the present invention, the wiring portion may extend to cover a back surface of the display portion, and the touch sensing portion may include a plurality of first patterns and a second pattern at portions where the first patterns and the second patterns cross each other. And an insulating layer for insulating the second patterns.

According to an embodiment of the present invention, an adhesive layer may be formed between the window and the display unit, and may further include a shield can for shielding the first printed circuit board.

According to an embodiment of the present invention, the first and second connectors may be connected by a connection line, and the connection line may be coupled to the printed circuit board.

According to an embodiment of the present invention, the width of the left and right touch patterns can be reduced, thereby realizing a narrow bezel.

Further, even if some of the flexible printed circuit boards are not operated, the mobile terminal can be driven by the remaining flexible printed circuit boards. That is, if one flexible printed circuit board is not operated, a UI (user interface) can be configured according to an operable partial screen.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention;
2 is a front perspective view of a mobile terminal according to an embodiment of the present invention;
3 is a rear perspective view of a mobile terminal according to one embodiment of the present invention.
4 is a partially exploded perspective view of a general mobile terminal
5 is a plan view of a touch sensing unit in which a conventional touch pattern is formed.
6 and 7 are plan views of a touch sensing unit according to an embodiment of the present invention;
8A is a conceptual diagram of touch patterns according to an embodiment of the present invention.
8B is a sectional view taken along line IV-IV in FIG. 8A; FIG.
9 is an exploded perspective view of a display module according to an embodiment of the present invention.
FIGS. 10A and 10B are cross-sectional views illustrating a state where a window and a touch sensing unit are combined according to a modification of the touch panel shown in FIG. 8A. FIG.
11 is a partially exploded perspective view of a mobile terminal according to an embodiment of the present invention.
FIG. 12 is an exploded perspective view of a mobile terminal showing a combined state of a mobile terminal according to an embodiment of the present invention; 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.

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 includes a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player), an e-book, Navigation, and the like.

1 is a block diagram of a mobile terminal 100 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 one another, and may be disposed on different surfaces, respectively.

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

The touch sensing unit 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 sensing unit 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 sensing part, 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.

The proximity sensor 141 may be disposed in an inner region of the mobile terminal or in the vicinity of the touch screen, which is enclosed 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 sensing unit) may be classified as a proximity sensor.

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

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

The audio output module 152 may output audio data received from the wireless communication unit 110 or stored in the memory 160 in a call signal reception mode, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, The sound output module 152 also outputs sound signals related to functions (e.g., call signal reception sound, message reception sound, etc.) performed in the mobile terminal 100. [ The audio output module 152 may include a receiver, a speaker, a buzzer, and the like.

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

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

In addition to the vibration, the haptic module 154 may include a pin arrangement vertically moving with respect to the contact skin surface, a spraying force or suction force of the air through the injection port or the suction port, a touch on the skin surface, contact with an electrode, And various tactile effects such as an effect of reproducing a cold sensation using an endothermic or exothermic element can be generated.

The haptic module 154 can be implemented not only to transmit the tactile effect through the direct contact but also to allow the user to feel the tactile effect through the muscular sensation of the finger or arm. At least two haptic modules 154 may be provided according to the configuration of the mobile terminal 100.

The 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. [

2 is a perspective view of a mobile terminal 100 according to an embodiment of the present invention.

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

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

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

The terminal body may include a display unit 151, an audio output unit 152, a camera 121, user input units 130/131 and 132, a microphone 122, and an interface 170.

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

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

The contents input by the first or second operation units 131 and 132 may be variously set. For example, the first operation unit 131 receives commands such as start, end, scroll, and the like, and the second operation unit 132 controls the size of the sound output from the sound output unit 152 or the size of the sound output from the display unit 151 To the touch recognition mode of the touch screen.

3 is a rear perspective view of the mobile terminal 100 shown in Fig.

Referring to FIG. 3, a camera 121 'may be further mounted on the rear surface of the terminal body, that is, the rear case 102. The camera 121 'may have a photographing direction substantially opposite to the camera 121 (see FIG. 2), and may be a camera having different pixels from the camera 121.

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

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

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

In addition to the antenna for a call or the like, a broadcast signal reception antenna 124 may be additionally disposed on the side of the terminal body. The antenna 124 constituting a part of the broadcast receiving module 111 (see FIG. 1) may be installed to be able to be drawn out from the terminal body.

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

FIG. 4 is an exploded perspective view of the mobile terminal 100 of FIG. 2, illustrating the configuration of the mobile terminal 100 including the touch sensing unit 240.

Referring to FIG. 4, a printed circuit board 217 is mounted on the rear case 102. The printed circuit board 217 may be configured as an example of a control unit 180 (see FIG. 1) for operating various functions of the mobile terminal 100. As shown, the audio output module 152, the camera 121, and the like can be mounted on the printed circuit board 217.

A display unit 151 electrically connected to the printed circuit board 217 is disposed on one side of the printed circuit board 217. The display unit 151 may have an area corresponding to an area through which the light of the window 250 is transmitted. Accordingly, the user can recognize the time information output from the display unit 151 from the outside.

Meanwhile, the window 250 is disposed on one side of the touch sensing unit 240 for sensing the touch input.

The touch sensing unit 240 may be disposed between the window 250 and the display unit 150 or may be disposed inside the display unit 151, The unit 240 may be made light-transmissive so that an image formed on the display unit 151 is transmitted. A region corresponding to a portion through which light is transmitted through the window 250 in the touch sensing unit 240 forms an input region. The touch sensing unit 240 is configured to convert a change in the amount of charge or the like occurring in a specific portion into an electrical input signal.

The window 250 coupled to one surface of the touch sensing unit 240 may be made of a material that can transmit light, for example, a light transmitting synthetic resin, a tempered glass, or the like. The window 250 may be formed to include a portion that can not transmit light.

Acoustic holes corresponding to the sound output module 152 and an image window corresponding to the camera 121 may be formed at one end of the touch sensing unit 240 and the window 250. The image window may be formed separately from the light-transmitting material, or may be integrated with the touch sensing unit 240 and the window 250 to form a part thereof.

The touch sensing unit 240 may include first and second touch sheets 220 and 230 arranged in layers. In one embodiment of the present invention, the touch pattern of the first touch sheet 220 is formed to extend in the first direction and is configured to sense the touch input in the first direction. The second touch sheet 230 is disposed to cover the first touch sheet 220. The touch pattern of the second touch sheet 230 is formed to extend in the second direction and is configured to sense the touch input in the second direction.

For example, the first touch sheet 220 can detect the touch input in the X-axis direction by the touch pattern 222 formed in the width direction (X-axis direction) of the mobile terminal 100, The touch panel 230 may be configured to sense the touch input in the Y-axis direction by the touch pattern 232 formed in the longitudinal direction (Y-axis direction) of the mobile terminal 100. The first and second touch sheets 220 and 230 may be a light transmissive conductive film such as an indium tin oxide (ITO) film, a carbon nanotube (CNT) film, or the like. In the above description, the touch sensing unit 240 includes the first and second touch sheets 220 and 230. However, the present invention is not limited thereto and the touch patterns may be formed on the same plane. This will be described later.

The touch sensing unit 240 measures changes in the amounts of charges in the first and second directions through the first and second touch sheets 220 and 230. The touch sensing unit 240 is electrically connected to the printed circuit board 217. The first and second touch sheets 220 and 230 are connected to a detection unit (not shown), respectively, and detect a touch input to the input area using a change in the amount of the sensed charge.

For example, when a conductor such as a finger or a touch pen touches the window 250, the electrons in the window 250 are moved to the conductor, and the touch sensing unit 240 senses a change in the amount of charge, .

The flexible printed circuit board 270 is electrically connected to the first and second touch sheets 220 and 230 and the printed circuit board 217. The flexible printed circuit board 270 is electrically connected to the terminal portion 272, .

A plurality of flexible printed circuit boards 270 may be formed. For example, the flexible printed circuit board 270 may be disposed at both ends of the mobile terminal 100 in the longitudinal direction (Y-axis direction).

Although the mobile terminal 100 having the electrostatic touch sensing unit 240 has been described above, the mobile terminal 100 may be a mobile terminal having another touch method, for example, a static pressure touch sensing unit.

A touch sensing unit 240 including a window 250, first and second touch sheets 220 and 230, and a touch film (not shown) are mounted on the upper surface of the display, Respectively.

When a point of the touch film is pressed through the user's hand or the touch pen, the touch sensitive portion corresponding to the pressed portion is pressed. As a result, the first and second touch sheets are brought into contact with each other at the pressing point, and the control unit 180 senses the pressing point and generates a touch input corresponding to the pressing point.

Hereinafter, the mobile terminal 100 having the touch sensing unit 240 of a new structure capable of reducing the width of the bezel will be described in more detail.

5 is a plan view of the first touch sheet 220 of FIG. 4. FIG. 5 is a plan view of the first touch sheet 220 of FIG. 270). ≪ / RTI > That is, since the flexible printed circuit board 270 is located only at the upper portion, it can be seen that the width D1 of the left and right bezels is increased because all the signal transmitting portions 222a are gathered only in one place.

According to the above structure, as the number of the flexible printed circuit boards 270 increases, a space in which the signal transmitting portion 222a can be arranged is increased, so that a more efficient spatial arrangement of the signal transmitting portion 222a is possible.

 Hereinafter, an embodiment of the present invention will be described in more detail.

6 is a plan view of a first touch sheet 220 according to an embodiment of the present invention. Referring to FIG. 6, flexible printed circuit boards 270a and 270b are provided at upper and lower portions, It can be seen that the width D2 of the bezel can be reduced by allowing the transfer portions 223 and 224 to be gathered by the upper and lower flexible printed circuit boards 270a and 270b. 5, since all the signal transmitting portions 222a are concentrated on one flexible printed circuit board 270, the width of the bezel is increased as the number of the signal transmitting portions 222a is increased. However, according to an embodiment of the present invention, the width of the bezel can be reduced by half by separating the first and second signal transmission parts 223 and 224 to both upper and lower sides.

In an embodiment of the present invention, a bezel refers to an outer portion of a mobile terminal where a screen is not displayed when viewed from the front.

As described above, the touch sensing unit 240 may include first and second touch sheets 220 and 230 having respective touch patterns formed thereon. However, the present invention is not limited to this, And a touch pattern is formed in two directions intersecting with each other.

Hereinafter, the touch sensing unit 240, that is, a touch pattern applied in two directions crossing one touch sheet 220 will be described.

8A is a plan view of the touch patterns 322 and 332 in the embodiment of the present invention. It is shown that the first patterns 322 and the second patterns 332 are formed on one substrate.

That is, the touch patterns 322 and 332 are formed on one substrate and include a plurality of first patterns 322 arranged in parallel in a first direction (e.g., an X-axis direction) Or a plurality of second patterns 332 arranged in parallel in a second direction (e.g., Y-axis direction).

Since the first patterns 322 and the second patterns 332 are formed on the same plane, the first patterns 322 and the second patterns 332 intersect with each other but can be electrically isolated from each other by the insulating layer 350. The spaced first patterns 322 may be connected to each other by a bridge 313.

The signal transmission parts 323 and 324 connected to the first patterns 322 are formed close to both ends of the touch sheet 320. Since the first and second touch patterns 322 and 332 are formed on the same plane as described above, the first touch sheet 320 described in one embodiment of the present invention may be a touch sensing unit .

7 is a plan view of the touch sheet 220 according to an embodiment of the present invention except that the touch region 220 is separated along the width direction of the touch sheet 220. In this case, Sheet 220 in Fig.

6 and 7, in one embodiment of the present invention, the touch area can be divided into a plurality of areas (I, II, III, and IV areas) And to display the image information and the like using the other touch area when the operation is not normally performed.

6 and 7, a touch pattern 222, a first signal transmitter 223, and a second signal transmitter 224 are formed on the touch sheet 220. The touch patterns 222 extend in a first direction, for example, a width direction (X-axis direction) of the mobile terminal 100, and are spaced apart from each other at predetermined intervals. The touch pattern 222 may be formed by sputtering a transparent conductive material, for example, ITO (Indium Tin Oxide).

As shown in FIG. 4, the touch patterns 222 and 232 may be formed in a plurality of lines along a direction perpendicular to each other. For example, the touch pattern 222 of the first touch sheet 220 is implemented as a plurality of sensing channels extending in the width direction (X-axis direction of FIG. 4) of the mobile terminal 100, The touch pattern 232 of the touch panel 230 may be implemented as a plurality of sensing channels extending in the longitudinal direction of the mobile terminal 100 (Y-axis direction in FIG. 4), and may be implemented on one plane .

The directions of the touch patterns 222 and 232 may be opposite to those of the above embodiment. The touch patterns 222 and 232 may have various shapes such as a line shape, a curved shape, and a shape. 8A, it can be seen that the touch patterns 322 and 332 are formed in a diamond shape.

Hereinafter, a touch pattern extending in the width direction (X-axis direction) of the mobile terminal 100 will be mainly described.

FIG. 6 is a plan view of the touch sheet 220 according to an embodiment of the present invention. The first signal transmitter 223 is electrically connected to a part of the touch pattern 222 to sense the touch input . As shown in the figure, the first signal transfer unit 223 is connected to the touch pattern of the I region and is collected on the first flexible printed circuit board 270a. The second signal transfer unit 224 is connected to the touch pattern of the II region, And is connected to a second flexible printed circuit board 270b formed at a position opposite to the first flexible printed circuit board 270a. At this time, the first and second signal transmission units 223 and 224 pass the touch sheet 240, that is, the edge region of the touch sensing unit.

The touch pattern 222 may include a touch pattern connected to the first flexible printed circuit board 270a and a touch pattern connected to the second flexible printed circuit board 270b. The first and second signal transmission units 223 and 224 are alternately connected to one side or the other side of the touch patterns of the I and II regions, respectively. The first and second signal transfer parts 223 and 224 may be formed by printing and depositing a conductive material, and the conductive material may be, for example, silver, aluminum, copper, or the like.

At this time, the first and second flexible printed circuit boards 270a and 270b are electrically connected to the first printed circuit board 217. According to an embodiment of the present invention, the first and second flexible printed circuit boards The substrates 270a and 270b may be connected to the first and second connectors 271a and 271b, respectively.

Hereinafter, another embodiment of the present invention will be described.

8A is a conceptual diagram of touch patterns according to an embodiment of the present invention, and FIG. 8B is a sectional view of FIG. 8A. These touch sensing patterns may be formed on a substrate to constitute a display unit and a part of a mobile terminal.

In the case of the touch sheet according to the embodiments of the present invention, a method of sensing a touched portion is a method of forming an equal potential on a conductive film, sensing a position where a voltage change of the upper and lower plates due to a touch is sensed, (Capacitive type).

The touch patterns are formed on one substrate 320 and are formed on the substrate 320 and a plurality of first patterns 322 arranged in a first direction (e.g., an X-axis direction) And a plurality of second patterns 332 arranged in parallel in a first direction or in a second direction (e.g., Y-axis direction) perpendicular to the first direction. Since the first patterns 322 and the second patterns 332 are formed on the same plane, the first patterns 322 and the second patterns 332 intersect with each other but can be electrically isolated from each other by the insulating layer 350. The spaced first patterns 322 may be connected to each other by a bridge 313.

The first and second signal transmission parts 323 and 324 for connecting the first patterns 322 and the connectors 371a and 371b to each other are formed close to both ends of the substrate 310, The wiring portion 315 on which the transmitting portion 323 is formed is bent when the display portion 151 is coupled with the wiring portion 315.

A signal transmission portion 342 connecting the second patterns 332 and the first and second connectors 371a and 371b may be formed close to either end of the substrate 320. [

10A and 10B are sectional views of a display module according to an embodiment of the present invention. Referring to FIG. 9, the display modules 300 and 400, And adhesive layers 302 and 402 are formed between the window 250 and the touch sheets 320 and 420 to form the window 250. The adhesive layer 302 and the adhesive layer 302 are formed on the window 250, And the touch sheets 320 and 420 are combined.

The first and second patterns are formed on the touch sheets 320 and 420 and the wiring parts 315 and 415 on which the signal transmission parts connected to the first and second patterns are formed are mounted on the display part 151 (See FIG. 10A) or formed on the back surface of the display unit 151 (see FIG. 10B). By forming the wiring portions 315 and 415 on the side surface or the back surface of the display portion 151 rather than the upper surface, the bezel region can be further widened. That is, the wiring portion 315 may be formed in the inactive region B of the touch sheet 320 covering both sides of the display portion 151. The signal transmission units 323 and 324 may be formed in the wiring unit 315 and the signal transmission units 323 and 324 may be formed on the side surface of the display unit 151, have.

11 and 12 are exploded perspective views of a mobile terminal according to an embodiment of the present invention. Referring to FIG. 11, first and second connectors 271a and 271b are connected to a first printed circuit board 217 A first terminal portion 272a and a second terminal portion 272b are formed.

The first and second connectors 271a and 271b may be formed on and electrically connected to the third flexible printed circuit board 219 and the third flexible printed circuit board 219 may be formed of electromagnetic interference And the shield can 208 may be disposed between the third flexible printed circuit board 219 and the printed circuit board 217. The shield can 208 may be disposed between the third flexible printed circuit board 219 and the printed circuit board 217. [

The third flexible printed circuit board 219 may be electrically connected to the printed circuit board 217 by the third connector 271c and the first and second connectors 271a and 271b may be connected to the connection line 275 The third flexible printed circuit board 219 is coupled to the printed circuit board 217 and the printed circuit board 217 can be coupled to the front case 101. In order to connect the printed circuit board 217 and the front case 101, a plurality of bosses 105 are formed in the front case 101 according to an embodiment of the present invention. And the printed circuit board 217 can be coupled to the front case 101 by the bosses 105. The third flexible printed circuit board 219 is disposed to cover the printed circuit board 217.

A capacitor 273, a sim socket 277, a touch window driver IC chip 279, and the like are mounted on the third flexible printed circuit board 219. The capacitor 273 is provided to mitigate or prevent a malfunction of a touch input while stabilizing the electrical performance. The sim socket 277 is a memory card inserted with a sim card to function as an interface with an external device And the touch window driving chip 279 performs the function of driving the touch sheets 220, 320, and 420.

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

It will be apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.

It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be interpreted as being included in the scope of the present invention .

Claims (13)

A touch sensing unit disposed at a lower portion of the window and being divided into a plurality of touch regions to form a touch pattern for sensing a touch;
A first signal transmission unit connected to an edge region of the touch sensing unit and connected to a touch pattern of a part of the touch area and joined at one side of the touch sensing unit;
A second signal transferring part connected to the touch pattern of the remainder of the touch area via the edge area of the touch sensing part and merging at the other side of the touch sensing part;
A first flexible printed circuit board and a second flexible printed circuit board to which the first and second signal transmission units are respectively connected; And
And a first connector and a second connector that connect the first and second flexible printed circuit boards to the printed circuit board, respectively. The method according to claim 1,
The touch pattern includes:
First patterns extending in a first direction across the touch sensing unit and second patterns extending in a second direction intersecting the first direction,
Wherein the first patterns and the second patterns are arranged on the same plane, and the patterns of either the first patterns or the second patterns are connected to each other by bridges. 3. The method of claim 2,
Wherein the signal transmission unit is alternately connected to one side or the other side of the touch pattern. 3. The method of claim 2,
Wherein the first and second connectors are connected to each other through a third flexible printed circuit board connected to the printed circuit board. 3. The method according to claim 1 or 2,
Wherein the plurality of touch regions include:
Wherein the touch sensing unit is divided into two or more regions along the length direction of the touch sensing unit. 6. The method of claim 5,
Wherein the plurality of touch regions include:
Wherein the touch sensing unit is divided into two or more regions along a width direction of the touch sensing unit. The method according to claim 6,
The touch-
And a wiring part which is laminated on a display part and is bent at a side end of the display part and formed to cover at least one side of the display part,
Wherein the first and second signal transmission units are formed in the wiring unit. 8. The method of claim 7,
Wherein,
And extends to cover the back surface of the display unit. 3. The method of claim 2,
The touch-
Further comprising an insulating layer for insulating the first patterns from the second patterns at a portion where the first patterns and the second patterns intersect with each other. 8. The method of claim 7,
Wherein an adhesive layer is formed between the window and the display unit. The method according to claim 1,
And a shield can for shielding the first printed circuit board. The method according to claim 1,
Wherein the first and second connectors are connected by a connection line. 13. The method of claim 12,
Wherein the connection line is coupled to the printed circuit board.

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