KR20160016412A - Mobile terminal case, mobile terminal and mobile terminal case's method for controlling the mobile terminal - Google Patents

Abstract

The present invention is to provide a folio case, which unlocks a mobile terminal via the folio case or verifies authenticity of the folio case and furthermore performs additional functions when the folio case is in a closed state. The folio case comprises: a front cover which is made of a non-conductive material to cover a display unit provided with a touch sensor of which capacitance changes; a conductive member having predetermined area and thickness; and a verifying unit including a plurality of conductive members of which a surface is positioned to be in contact with the display unit.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile terminal,

The present invention relates to a mobile terminal including a polyo-case and a display unit for recognizing a polyo-case and a control method thereof.

A terminal can be divided into a mobile terminal (mobile / portable terminal) and a stationary terminal according to whether the terminal can be moved. The mobile terminal can be divided into a handheld terminal and a vehicle mounted terminal according to whether the user can directly carry the mobile terminal.

The functions of mobile terminals are diversified. For example, there are data and voice communication, photographing and video shooting through a camera, voice recording, music file playback through a speaker system, and outputting an image or video on a display unit. Some terminals are equipped with an electronic game play function or a multimedia player function. In particular, modern mobile terminals can receive multicast signals that provide visual content such as broadcast and video or television programs.

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.

Particularly, such a terminal needs to protect the built-in parts or the appearance, and the need to use the terminal is increasing. Such protection may require not only the rear surface of the mobile terminal but also the portion where the display is located. In order to satisfy such a function, the polio case of the mobile terminal case includes a front cover that can open and close the mobile terminal. Furthermore, these foliage cases can have additional storage space or expect additional functions.

On the other hand, in the case of the folio case, the display portion of the mobile terminal is usually covered, so that a specific function must be performed after opening the front cover.

The present invention aims at unlocking a mobile terminal through a folio case, authenticating a genuine folio case, and further performing a separate additional function in a closed state of the folio case.

In order to achieve the above object, according to an aspect of the present invention,

A conductive member having a predetermined area and a predetermined thickness, and a plurality of conductive members disposed on the one surface so as to be in contact with the display unit, wherein the front cover is made of a nonconductive material covering the display unit having the touch sensor, Quot; authentication "

Further, in order to maximize the recognition effect of the folio case, the front cover may provide a magnetic material corresponding to the hall sensor of the mobile terminal,

An input / output pin for recognizing whether a current signal is present; a transmission terminal provided in the rear cover for transmitting / receiving a current signal to / from the mobile terminal; And a circuit unit connecting one end to the output-pin and the authentication unit, and connecting the other end of the input / output-pin to the transfer terminal.

A display unit having a touch sensor whose capacitance changes due to the contact of a conductive material, a display unit for recognizing a change value of the capacitance and for detecting a first value corresponding to a distribution on a plane coordinate of change values satisfying a first reference value or more, And a control unit for executing the function.

Further, in order to maximize the recognition effect of the folio case, a proximity sensor for sensing the object in the front direction of the mobile terminal or a hall sensor for sensing the magnetic force in the front direction of the mobile terminal is provided.

According to the present invention, a mutual signal can be exchanged with a mobile terminal through a folio case, and a secure connection function can be provided through a genuine folio case authentication or an encrypted folio case. Furthermore, it can provide additional, customized and specific functions. This function can be performed with the polyo case closed or closed and open, or with additional input while the polyo case is closed.

Further scope of applicability of the present invention will become apparent from the following detailed description. It should be understood, however, that the detailed description and specific examples, such as the preferred embodiments of the invention, are given by way of illustration only, since various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art.

1A is a block diagram illustrating a mobile terminal according to the present invention.
1B and 1C are conceptual diagrams illustrating an example of a mobile terminal according to the present invention in different directions.
2A and 2B are front views of an example of a mobile terminal and a folio case related to the present invention.
FIGS. 3A and 3B show an example of a mobile terminal and a change value of a capacitance of the polyo case and a mobile terminal according to the present invention.
4 is a front view of an example of a mobile terminal and a folio case related to the present invention.
5A and 5B show an example of a contact structure of a conductive member using a dome key according to the present invention.
6A and 6B are cross-sectional views of the folio case related to the present invention with respect to the direction BB '(see Fig. 5) in the closed state.
7 is a diagram illustrating an example of a mobile terminal and a folio case related to the present invention.
Figure 8 illustrates an example of a back cover with circuitry including input / output-pins associated with the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals are used to designate identical or similar elements, and redundant description thereof will be omitted. 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. In the following description of the embodiments of the present invention, a detailed description of related arts will be omitted when it is determined that the gist of the embodiments disclosed herein may be blurred. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. , ≪ / RTI > equivalents, and alternatives.

The mobile terminal described in this specification includes a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), a navigation device, a slate PC A tablet PC, an ultrabook, a wearable device such as a smartwatch, a smart glass, and a head mounted display (HMD). have.

However, it will be appreciated by those skilled in the art that the configuration according to the embodiments described herein may be applied to fixed terminals such as a digital TV, a desktop computer, a digital signage, and the like, will be.

1A is a block diagram illustrating a mobile terminal according to the present invention.

The mobile terminal 100 includes a wireless communication unit 110, an input unit 120, a sensing unit 140, an output unit 150, an interface unit 160, a memory 170, a control unit 180, ), And the like. The components shown in FIG. 1A are not essential for implementing a mobile terminal, so that the mobile terminal described herein may have more or fewer components than the components listed above.

The wireless communication unit 110 may be connected between the mobile terminal 100 and the wireless communication system or between the mobile terminal 100 and another mobile terminal 100 or between the mobile terminal 100 and the external server 100. [ Lt; RTI ID = 0.0 > wireless < / RTI > In addition, the wireless communication unit 110 may include one or more modules for connecting the mobile terminal 100 to one or more networks.

The wireless communication unit 110 may include at least one of a broadcast receiving module 111, a mobile communication module 112, a wireless Internet module 113, a short distance communication module 114, and a location information module 115 .

The input unit 120 includes a camera 121 or an image input unit for inputting a video signal, a microphone 122 for inputting an audio signal, an audio input unit, a user input unit 123 for receiving information from a user A touch key, a mechanical key, and the like). The voice data or image data collected by the input unit 120 may be analyzed and processed by a user's control command.

The sensing unit 140 may include at least one sensor for sensing at least one of information in the mobile terminal, surrounding environment information surrounding the mobile terminal, and user information. For example, the sensing unit 140 may include a proximity sensor 141, an illumination sensor 142, a touch sensor 151b, an acceleration sensor, a magnetic sensor A G-sensor, a gyroscope sensor, a motion sensor, an RGB sensor, an infrared sensor, a finger scan sensor, an ultrasonic sensor an ultrasonic sensor, an optical sensor (see for example camera 121), a microphone (see microphone 122), a battery gauge, an environmental sensor (e.g., barometer, hygrometer, thermometer, (E.g., a sensor, a thermal sensor, a gas sensor, etc.), a chemical sensor (e.g., an electronic nose, a healthcare sensor, a biometric sensor, etc.). Meanwhile, the mobile terminal disclosed in the present specification can combine and utilize information sensed by at least two of the sensors.

The output unit 150 includes at least one of a display unit 151, an acoustic output unit 152, a haptic tip module 153, and a light output unit 154 to generate an output related to visual, auditory, can do. The display unit 151 may have a mutual layer structure with the touch sensor 151b or may be integrally formed to realize a touch screen. The touch screen may function as a user input unit 123 that provides an input interface between the mobile terminal 100 and a user and may provide an output interface between the mobile terminal 100 and a user.

The interface unit 160 serves as a path to various types of external devices connected to the mobile terminal 100. The interface unit 160 is connected to a device having a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, And may include at least one of a port, an audio I / O port, a video I / O port, and an earphone port. In the mobile terminal 100, corresponding to the connection of the external device to the interface unit 160, it is possible to perform appropriate control related to the connected external device.

In addition, the memory 170 stores data supporting various functions of the mobile terminal 100. The memory 170 may store a plurality of application programs or applications running on the mobile terminal 100, data for operation of the mobile terminal 100, and commands. At least some of these applications may be downloaded from an external server via wireless communication. Also, at least a part of these application programs may exist on the mobile terminal 100 from the time of shipment for the basic functions (e.g., telephone call receiving function, message receiving function, and calling function) of the mobile terminal 100. Meanwhile, the application program may be stored in the memory 170, installed on the mobile terminal 100, and may be operated by the control unit 180 to perform the operation (or function) of the mobile terminal.

In addition to the operations related to the application program, the control unit 180 typically controls the overall operation of the mobile terminal 100. The control unit 180 may process or process signals, data, information, and the like input or output through the above-mentioned components, or may drive an application program stored in the memory 170 to provide or process appropriate information or functions to the user.

In addition, the controller 180 may control at least some of the components illustrated in FIG. 1A in order to drive an application program stored in the memory 170. FIG. In addition, the controller 180 may operate at least two of the components included in the mobile terminal 100 in combination with each other for driving the application program.

The power supply unit 190 receives external power and internal power under the control of the controller 180 and supplies power to the components included in the mobile terminal 100. The power supply unit 190 includes a battery, which may be an internal battery or a replaceable battery.

At least some of the components may operate in cooperation with one another to implement a method of operation, control, or control of a mobile terminal according to various embodiments described below. In addition, the operation, control, or control method of the mobile terminal may be implemented on the mobile terminal by driving at least one application program stored in the memory 170. [

Referring to FIGS. 1B and 1C, 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 folder type, a flip type, a slide type, a swing type, and a swivel type in which a watch type, a clip type, a glass type or two or more bodies are relatively movably coupled . A description of a particular type of mobile terminal 100 will generally be applicable to other types of mobile terminals 100 although it will be related to a particular type of mobile terminal 100. [

Here, the terminal body can be understood as a concept of referring to the mobile terminal 100 as at least one aggregate.

The mobile terminal 100 includes a case (for example, a frame, a housing, a cover, and the like) that forms an appearance. As shown, the mobile terminal 100 may include a front case 101 and a rear case 102. Various electronic components are disposed in the inner space formed by the combination of the front case 101 and the rear case 102. At least one middle case may be additionally disposed between the front case 101 and the rear case 102.

A display unit 151 is disposed on a front surface of the terminal body to output information. The window 151a of the display unit 151 may be mounted on the front case 101 to form a front surface of the terminal body together with the front case 101. [

In some cases, electronic components may also be mounted on the rear case 102. Electronic parts that can be mounted on the rear case 102 include detachable batteries, an identification module, a memory card, and the like. In this case, the rear case 102 can be detachably coupled to the rear housing 103 of the mobile terminal for covering the mounted electronic components. Therefore, when the mobile terminal rear housing 103 is separated from the rear case 102, the electronic parts mounted on the rear case 102 are exposed to the outside.

As shown, when the mobile terminal rear housing 103 is coupled to the rear case 102, a side portion of the rear case 102 can be exposed. In some cases, the rear case 102 may be completely covered by the mobile terminal rear housing 103 during the coupling. Meanwhile, the mobile terminal rear housing 103 may be provided with an opening for exposing the camera 121b or the sound output unit 152b to the outside.

These cases 101, 102, and 103 may be formed by injection molding of synthetic resin or may be formed of metal such as stainless steel (STS), aluminum (Al), titanium (Ti), or the like.

The mobile terminal 100 may be configured such that one case provides the internal space, unlike the above example in which a plurality of cases provide an internal space for accommodating various electronic components. In this case, a unibody mobile terminal 100 in which synthetic resin or metal is connected from the side to the rear side can be realized.

Meanwhile, the mobile terminal 100 may include a waterproof unit (not shown) for preventing water from penetrating into the terminal body. For example, the waterproof portion is provided between the window 151a and the front case 101, between the front case 101 and the rear case 102, or between the rear case 102 and the rear cover 103, And a waterproof member for sealing the inside space of the oven.

The mobile terminal 100 is provided with a display unit 151, first and second sound output units 152a and 152b, a proximity sensor 141, an illuminance sensor 142, a light output unit 154, Cameras 121a and 121b, first and second operation units 123a and 123b, a microphone 122, an interface unit 160, and the like.

1B and 1C, a display unit 151, a first sound output unit 152a, a proximity sensor 141, an illuminance sensor 142, an optical output unit (not shown) A second operation unit 123b, a microphone 122 and an interface unit 160 are disposed on a side surface of the terminal body, And a mobile terminal 100 having a second sound output unit 152b and a second camera 121b disposed on a rear surface thereof.

However, these configurations are not limited to this arrangement. These configurations may be excluded or replaced as needed, or placed on different planes. For example, the first operation unit 123a may not be provided on the front surface of the terminal body, and the second sound output unit 152b may be provided on the side surface of the terminal body rather than the rear surface of the terminal body.

The display unit 151 displays (outputs) information processed by the mobile terminal 100. For example, the display unit 151 may display execution screen information of an application program driven by the mobile terminal 100 or UI (User Interface) and GUI (Graphic User Interface) information according to the execution screen information .

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

In addition, the display unit 151 may exist in two or more depending on the embodiment of the mobile terminal 100. In this case, the mobile terminal 100 may be provided with a plurality of display portions 151 spaced apart from one another or integrally disposed on one surface thereof, or may be disposed on different surfaces.

The display unit 151 may include a touch sensor 151b for sensing a touch to the display unit 151 so as to receive a control command by a touch method. When a touch is made to the display unit 151, the touch sensor 151b senses the touch, and the control unit 180 generates a control command corresponding to the touch based on the touch . The content input by the touch method may be a letter or a number, an instruction in various modes, a menu item which can be designated, and the like.

The touch sensor 151b may be disposed between the window 151a and a display (not shown) on the rear surface of the window 151a or may be directly patterned on the back surface of the window 151a, Metal wire. Alternatively, the touch sensor 151b may be formed integrally with the display. For example, the touch sensor 151b may be disposed on a substrate of the display, or may be provided inside the display.

In this way, the display unit 151 can form a touch screen together with the touch sensor 151b. In this case, the touch screen can function as a user input unit 123 (see FIG. 1A). In some cases, the touch screen may replace at least some functions of the first operation unit 123a.

The first sound output unit 152a may be implemented as a receiver for transmitting a call sound to a user's ear and the second sound output unit 152b may be implemented as a loud speaker for outputting various alarm sounds or multimedia playback sounds. ). ≪ / RTI >

The window 151a of the display unit 151 may be provided with an acoustic hole for emitting the sound generated from the first acoustic output unit 152a. However, the present invention is not limited to this, and the sound may be configured to be emitted along an assembly gap (for example, a gap between the window 151a and the front case 101) between the structures. In this case, the appearance of the mobile terminal 100 can be made more simple because the hole formed independently for the apparent acoustic output is hidden or hidden.

The optical output unit 154 is configured to output light for notifying the occurrence of an event. Examples of the event include a message reception, a call signal reception, a missed call, an alarm, a schedule notification, an email reception, and reception of information through an application. The control unit 180 may control the light output unit 154 to terminate the light output when the event confirmation of the user is detected.

The first camera 121a processes an image frame of a still image or a moving image obtained by the image sensor in the photographing mode or the video communication mode. The processed image frame can be displayed on the display unit 151 and can be stored in the memory 170. [

The first and second operation units 123a and 123b may be collectively referred to as a manipulating portion as an example of a user input unit 123 operated to receive a command for controlling the operation of the mobile terminal 100 have. The first and second operation units 123a and 123b can be employed in any manner as long as the user is in a tactile manner such as touch, push, scroll, or the like. In addition, the first and second operation units 123a and 123b may be employed in a manner that the user operates the apparatus without touching the user through a proximity touch, a hovering touch, or the like.

In this figure, the first operation unit 123a is a touch key, but the present invention is not limited thereto. For example, the first operation unit 123a may be a mechanical key or a combination of a touch key and a touch key.

The contents input by the first and second operation units 123a and 123b can be variously set. For example, the first operation unit 123a receives a command such as a menu, a home key, a cancellation, a search, and the like, and the second operation unit 123b receives a command from the first or second sound output unit 152a or 152b The size of the sound, and the change of the display unit 151 to the touch recognition mode.

On the other hand, a rear input unit (not shown) may be provided on the rear surface of the terminal body as another example of the user input unit 123. The rear input unit is operated to receive a command for controlling the operation of the mobile terminal 100, and input contents may be variously set. For example, commands such as power on / off, start, end, scrolling, and the like, the size adjustment of the sound output from the first and second sound output units 152a and 152b, And the like can be inputted. The rear input unit may be implemented as a touch input, a push input, or a combination thereof.

The rear input unit may be disposed so as to overlap with the front display unit 151 in the thickness direction of the terminal body. For example, the rear input unit may be disposed at the rear upper end of the terminal body such that when the user holds the terminal body with one hand, the rear input unit can be easily operated using the index finger. However, the present invention is not limited thereto, and the position of the rear input unit may be changed.

When a rear input unit is provided on the rear surface of the terminal body, a new type of user interface using the rear input unit can be realized. When the first operation unit 123a is not disposed on the front surface of the terminal body in place of at least a part of the functions of the first operation unit 123a provided on the front surface of the terminal body, The display unit 151 may be configured as a larger screen.

Meanwhile, the mobile terminal 100 may be provided with a fingerprint recognition sensor for recognizing the fingerprint of the user, and the controller 180 may use the fingerprint information sensed through the fingerprint recognition sensor as authentication means. The fingerprint recognition sensor may be embedded in the display unit 151 or the user input unit 123.

The microphone 122 is configured to receive the user's voice, other sounds, and the like. The microphone 122 may be provided at a plurality of locations to receive stereophonic sound.

The interface unit 160 is a path through which the mobile terminal 100 can be connected to an external device. For example, the interface unit 160 may include a connection terminal for connection with another device (for example, an earphone or an external speaker), a port for short-range communication (for example, an infrared port (IrDA Port), a Bluetooth port A wireless LAN port, or the like), or a power supply terminal for supplying power to the mobile terminal 100. The interface unit 160 may be implemented as a socket for receiving an external card such as a SIM (Subscriber Identification Module) or a UIM (User Identity Module) or a memory card for storing information.

And a second camera 121b may be disposed on a rear surface of the terminal body. In this case, the second camera 121b has a photographing direction which is substantially opposite to that of the first camera 121a.

The second camera 121b may include a plurality of lenses arranged along at least one line. The plurality of lenses may be arranged in a matrix form. Such a camera can be named an 'array camera'. When the second camera 121b is configured as an array camera, images can be taken in various ways using a plurality of lenses, and a better quality image can be obtained.

The flash 124 may be disposed adjacent to the second camera 121b. The flash 124 shines light toward the subject when the subject is photographed by the second camera 121b.

And a second sound output unit 152b may be additionally disposed in the terminal body. The second sound output unit 152b may implement a stereo function together with the first sound output unit 152a and may be used for implementing a speakerphone mode in a call.

The terminal body may be provided with at least one antenna for wireless communication. The antenna may be embedded in the terminal body or formed in the case. For example, an antenna constituting a part of the broadcast receiving module 111 (see FIG. 1A) may be configured to be able to be drawn out from the terminal body. Alternatively, the antenna may be formed in a film type and attached to the inner surface of the rear cover 103, or a case including a conductive material may be configured to function as an antenna.

The terminal body is provided with a power supply unit 190 (see FIG. 1A) for supplying power to the mobile terminal 100. The power supply unit 190 may include a battery 191 built in the terminal body or detachable from the outside of the terminal body.

The battery 191 may be configured to receive power through a power cable connected to the interface unit 160. In addition, the battery 191 may be configured to be wirelessly chargeable through a wireless charger. The wireless charging may be implemented by a magnetic induction method or a resonance method (magnetic resonance method).

The rear cover 103 is configured to be coupled to the rear case 102 so as to cover the battery 191 to restrict the release of the battery 191 and to protect the battery 191 from external impact and foreign matter . When the battery 191 is detachably attached to the terminal body, the rear cover 103 may be detachably coupled to the rear case 102.

The mobile terminal 100 may be provided with an accessory that protects the appearance or supports or expands the function of the mobile terminal 100. [ One example of such an accessory is a cover or pouch that covers or accommodates at least one side of the mobile terminal 100. [ The cover or pouch may be configured to interlock with the display unit 151 to expand the function of the mobile terminal 100. Another example of an accessory is a touch pen for supplementing or extending a touch input to the touch screen.

2A is a front view of an example of a mobile terminal 100 and a folio case 200 related to the present invention.

The folio case 200 includes a front cover 210, a back cover 220 (see FIG. 8), and a joint 260. The rear cover 220 (see FIG. 8) can protect the rear case of the mobile terminal 100 or the battery cover. The rear cover 220 (see FIG. 8) may form a depression to allow the rear case or the battery cover of the mobile terminal 100 to be attached and detached, and to prevent detachment from the mobile terminal 100 when it is not intended , There may be a hook member at least at one end. In order to protect the rear surface of the mobile terminal 100, it may be made of a material having a certain rigidity or more and may include a material that is not broken even under a certain impact. A typical example is polycarbonate. The rear cover 220 (see FIG. 8) may have an opening (not shown) such that the function key is exposed to the outside when the function key exists on the rear surface of the mobile terminal 100.

The front cover 210 of the polyoide case 200 may be made of a nonconductive material covering the display unit 151. [ Conductive material so as not to inadvertently operate due to the conductive material when the front cover 210 is brought into contact with the display portion 151. [

The display unit 151 of the mobile terminal 100 may include a touch sensor 151b whose capacitance changes. When the conductive material contacts the touch sensor 151b, the electric charge existing in the touch sensor 151b passes through the conductive material and the electrostatic capacitance of the touch sensor 151b changes. When the capacitance reaches the predetermined reference value or more, the control unit recognizes that the touch is generated at the corresponding touch point. Typical examples of the conductive material include an input tool such as a human body or a stylus pen.

2B is a front view of an example of the mobile terminal 100 and the folio case 200 related to the present invention.

The front cover 210 may have an opening to allow the entire or part of the display unit 151 of the mobile terminal 100 to be visible even when the front cover 210 is closed. This opening is generally referred to as a quick cover 230. The quick cover 230 functions to expose a part of the display unit 151 of the mobile terminal 100 to the outside even when the folio case 200 is closed. For example, when a call is directed to a time, or when a call signal or a message of the other party is transmitted / received, this can be displayed simply. Furthermore, it can also serve as a display of multimedia (music, text, video, etc.) contents.

FIGS. 3A and 3B show an example of a mobile terminal and a change value of a capacitance of the polyo case and a mobile terminal according to the present invention.

The change in the capacitance of the display unit 151 provided with the touch sensor 151b can be converted into data 300 on the grid coordinates. The lattice is classified by a certain number for convenience of expression and may actually be composed of pixels or more. The change in capacitance for each of the grids on the data distribution diagram 300 for the capacitance change is recognized as data. If these values are equal to or more than the reference value (in this case, 65 or more is taken as an example of the reference value, or may be different depending on each lattice), it can be recognized that a touch has occurred with respect to the lattice. Generally, such a touch can be generated by a body, a stylus pen or the like, and in the present invention, the conductive member 240 provided on the front cover 210 plays a role.

The front cover 210 may have a plurality of conductive members 240 having a predetermined area and a predetermined thickness. One surface of the plurality of conductive members 240 is positioned in the front cover 210 so as to contact the display unit 151 provided with the touch sensor 151b. A specific pattern can be formed on the front cover 210 of the conductive member 240. In the drawings, a specific pattern is represented by a plurality of discontinuous rectangles, but the present invention is not limited to such a pattern. Each conductive member 240 may have a circular or more various shapes besides a square. This configuration can be equally applied to the plurality of conductive members 240. [ The same area or shape can lead to process advantages. Furthermore, standardization can facilitate the subsequent joining or disassembly of the additional conductive member 240.

On the other hand, each of the conductive members 240 may be formed in a different shape. This different shape of the conductive member 240 can have the advantage of making more complex patterns and making it difficult to replicate.

On the other hand, the conductive member 240 does not require a large number. The conductive member 240 may be one or more than two. Meanwhile, the plurality of conductive members 240 may be connected to each other to have a single shape (not shown). In the present embodiment, two or more conductive members 240 are used as a reference. The specific pattern due to the distribution of the conductive member 240 causes the touch sensor 151b of the display unit 151 to generate the distribution of the digitized capacitance and further the control unit judges the touch point 320 according to this distribution .

As the area of the conductive member 240 contacting the display unit 151 is wider, a region having a large change value on the data distribution diagram 300 for capacitance change is widened. The conductive material not only changes the capacitance of the area of the touch sensor 151b directly touched but also changes the capacitance of the adjacent touch sensor 151b. Thus, the variation of the data distribution 300 with respect to the capacitance change varies gradually with the adjacent location. Therefore, the change in capacitance corresponding to the central portion of the area of the conductive member 240 in which the adjacent conductive material is most concentrated can have a relatively higher value than its surroundings. Therefore, the area in which the conductive member 240 contacts the display portion 151 affects the change in capacitance.

3B is a sectional view of the polyoide case 200 taken along AA 'direction (see FIG. 3A), and FIG. 3B is a view showing a data distribution diagram 300 of the capacitance change according to the position of the mobile terminal 100 It is reflected.

The member of the thickness of the conductive member 240 in the direction perpendicular to the surface where the conductive member 240 contacts the display portion 151 does not directly contact the display portion 151. [ However, the thickness of the conductive member 240 may also change the change value 310 of the capacitance. The relatively thick conductive member 240a has a stronger force for drawing charges from the touch sensor 151b than the relatively thin conductive member 240b and consequently can increase the capacitance change value 310. [

As a result, the data distribution diagram 300 for the capacitance change indicates the area and shape of the conductive member 240 (see FIG. 3A) contacting the display portion 151 and the thickness perpendicular to the contact portion, Can be defined by the number and distribution of the members 240 (see Fig. 3A).

The data distribution 300 for the electrostatic capacitance change can define such a region as the touch point 320 by detecting only a point at a predetermined reference value or more.

The generated capacitance change data distribution 300 or touch point 320 is compared with a predetermined area by the control unit of the mobile terminal 100 and performs a specific function when the corresponding function exists.

The mobile terminal 100 may recognize that the folio case 200 is a genuine product. (For convenience, this function is referred to as a first function, and a plurality of conductive members 240, Or the distribution of the plurality of conductive members 240 is referred to as an authentication unit 2401, and a point at which the first function is performed is referred to as a first distribution of touch points 3201). Further, the mobile terminal 100 may be provided with a function of unlocking the mobile terminal 100, and may be used not only for locking the mobile terminal 100 itself, but also for the function of logging in or unlocking of the application executed in the mobile terminal 100 (See FIG. 4). When the mobile terminal 100 and the folio case 200 are detachable, this security function can be used more advantageously. The user can carry the folio case 200 in the form of a general card and perform the unlocking, log-in or security release of the mobile terminal 100 through an operation of bringing the folio case 200 to the display unit 151 . In this case, when a user of the mobile terminal 100 tries to access the mobile terminal 100 by an unintended third party, the access can be restricted without the folio case 200.

Unlocking, logging in, or unsecuring is not limited to the user's own mobile terminal 100, and may be set to allow the user to recognize that the user is in the mobile terminal 100 through the login.

The recognition of the pattern may be performed when the front cover 210 is closed and may function as a temporary function that is maintained even when the front cover 210 is opened again or that the polyo case 200 is kept closed Lt; / RTI >

There may be an additional function using the quick cover 230 on the premise that the folio case 200 is kept closed. It may display the preset multimedia contents (music, image, image, etc.), function as a screen saver, or may be a window for executing music or displaying the lyrics. Or the quick cover 230 may have different patterns on the shape or color of the quick cover 230 so that the mobile terminal 100 can display a display suitable for the shape or color of the quick cover 230.

5A and 5B illustrate an example of the contact structure of the conductive member 240 using the dome key 250 according to the present invention.

FIG. 5A shows a state in which the folio case 200 is closed, and FIG. 5B shows a state in which the folio case 200 is opened.

Unlike the embodiment in which the conductive member 240 contacts the display unit 151 unconditionally when the front cover 210 is closed as described above, the user can select whether the conductive member 240 is touched even when the folio case 200 is closed . There may be at least one dome key 250 provided in the front cover 210 and pressed in the display direction by pressing.

FIGS. 6A and 6B are cross-sectional views taken along the line B-B '(see FIG. 5) in a closed state of the folio case 200 related to the present invention.

Fig. 6A shows a state before being pressed by a finger, and Fig. 6B shows a state where it is pressed by a finger.

And an operating portion 2402 provided in the direction of the display portion 151 of the dome key 250 and including at least one conductive member which contacts the display portion 151 when the dome key 250 is pressed have. If there is no additional pressing, the operating portion 2402 is separated from the display portion 151 in a state in which the folio case 200 is closed. When the display unit 151 is separated from the display unit 151, it is not recognized as a touch, so that the capacitance does not change. When the dome key 250 is pressed, the conductive member 240 may contact the display unit 151 to change the capacitance of the touch sensor 151b.

Such a touch may be generated by one conductive member 240 of the operation portion 2402 or a conductive member of two or more operation portions 2402 of the operation portion 2402 may be simultaneously or sequentially connected to the display portion 151 It may be caused by contact. When the conductive members of the two or more actuating portions 2402 sequentially contact the display portion 151, various patterns can be generated. Such a pattern can be set to be complicated enough to perform security or authenticity recognition functions, so that it is possible to additionally perform a first function, which is a role of the authentication unit 2401. However, in addition to the first function, Quot; function ").

For example, a music selection function, a volume control function, or the like can be operated during music playback while the front cover 210 is covered. Or may provide an additional user interface with the ability to display pictures running. The function performed through the contact of at least one or more optional conductive members 240 of the operating portion 2402 is referred to as a second function and the second distribution of the touch points 320 recognized for the execution of the second function 3202 may be different from the first reference value.

7 is a diagram illustrating an example of a mobile terminal and a folio case related to the present invention.

The recognition of the plurality of conductive members 240 through the contact of the display unit 151 is performed on the premise that the folio case 200 is closed. However, even if the folio case 200 is in a closed state, the sensitivity of the mobile terminal 100 to a change in capacitance may be deteriorated, which may result in a poor recognition of whether or not it is touched. In order to solve this problem, the reference value may be lowered by recognizing the closed state of the folio case 200 in order to increase the sensitivity of recognizing the change value 310 of the capacitance.

Therefore, the mobile terminal 100 may have a separate proximity sensor. Such proximity sensors may be at least one or more. When the front cover 210 is closed from the back surface of the front cover 210, a specific material may exist in the area facing the proximity sensor to facilitate recognition by the proximity sensor.

Or through the hall sensor 143 using magnetism. A magnetic material 243 may be provided in a region facing the Hall sensor 143 when the front cover 210 is closed. When the front cover 210 is closed and the Hall sensor 143 detects a change in the magnetic force, the reference value may be lowered to increase the sensitivity.

Figure 8 illustrates an example of a back cover 220 with circuitry including input / output-pins associated with the present invention.

An input / output-pin 261 for recognizing a current signal can be used as a method for allowing the mobile terminal 100 to recognize the contact of the conductive material more reliably. The rear cover 220 may have an input / output pin 261 for recognizing whether a current signal is present. These pins can be connected to a plurality of the conductive members 240 to constitute a circuit. There may be a circuit connecting one end to a plurality of the conductive members 240 to the input / output-pin 261 and connecting the other end of the input / output-pin 261 to the transfer terminal 262. The transmission terminal 262 is provided on the inner surface of the rear cover 220 to transmit a current signal to the specific terminal of the mobile terminal 100 and the transmission terminal 262 when the mobile terminal 100 is coupled. By this transfer, the change value 310 of the capacitance may be increased or may be separately formed by forming a pattern through a specific circuit apart from the change value 310 of the capacitance.

Hereinafter, embodiments related to a control method that can be implemented in the mobile terminal 100 configured as above will be described with reference to the accompanying drawings. 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.

The present invention described above can be embodied as computer-readable codes on a medium on which a program is recorded. The computer readable medium includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of the computer readable medium include a hard disk drive (HDD), a solid state disk (SSD), a silicon disk drive (SDD), a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, , And may also be implemented in the form of a carrier wave (e.g., transmission over the Internet). Also, the computer may include a control unit 180 of the terminal. Accordingly, the above description should not be construed in a limiting sense in all respects and should be considered illustrative. The scope of the present invention should be determined by rational interpretation of the appended claims, and all changes within the scope of equivalents of the present invention are included in the scope of the present invention.

100: mobile terminal 110: wireless communication unit
120: input unit 140: sensing unit
143: Hall sensor 150: Output section
151: Display unit 151b: Touch sensor
160: interface unit 170: memory
180: control unit 190: power supply unit
200: Polio case 210: Front cover
220: rear cover 230: quick cover
240: Conductive member 2401: Authentication unit
2402: Operation part 243: Magnetic material
250: dome key 260:
261: Input / Output - Pin 262: Terminal
263: Circuit part 300: Data distribution diagram for capacitance change
310: Change value 320: touch point
3201: first distribution of touch points 3202: second distribution of touch points

Claims (12)

A front cover made of a nonconductive material covering a display unit provided with a touch sensor whose capacitance changes; And
And an authentication unit including a plurality of conductive members positioned such that one surface thereof contacts the display unit,
Wherein each of the conductive members comprises:
Wherein the folio case has a predetermined area and a predetermined thickness. The method according to claim 1,
Wherein the plurality of conductive members have different areas or different thicknesses. The method according to claim 1,
Wherein the plurality of conductive members have a specific arrangement with respect to the display portion. The method according to claim 1,
At least one dome key provided on the front cover and pressed toward the display unit by pressing; And
Further comprising: an operating unit including at least one conductive member provided in the direction of the display unit of the dome key and contacting the display unit when the dome key is pressed. The method according to claim 1,
Wherein the front cover comprises:
And a magnetic material corresponding to the Hall sensor of the mobile terminal. The method according to claim 1,
A rear cover covering a rear surface of the mobile terminal;
An input / output pin provided on the rear cover for recognizing whether a current signal is present;
A transfer terminal provided on the rear cover for exchanging a current signal with the mobile terminal;
Further comprising a circuit unit connecting one end of the input / output-pin to the authentication unit and connecting the other end of the input / output-pin to the transmission terminal. A display unit having a touch sensor whose electrostatic capacitance is changed by the contact of a conductive material; And
And a controller for recognizing a first distribution of a plurality of touch points whose change in capacitance of the touch sensor is equal to or greater than a first reference value and executing a first function corresponding to a first distribution of the plurality of touch points . 8. The method of claim 7,
Wherein the first reference value is different according to each of the plurality of touch points. 8. The method of claim 7,
When the electrostatic capacity corresponding to the second distribution is restored to its original state, the second distribution of the at least one touch point having a change in electrostatic capacitance of the touch sensor is equal to or greater than a second reference value, And a second function corresponding to a second distribution of the first distribution. 8. The method of claim 7,
Further comprising a proximity sensor for sensing an object in a front direction or a hall sensor for sensing a magnetic force of a magnetic material positioned in the front direction,
Wherein,
When the proximity sensor detects the proximity of the object or when the Hall sensor detects the magnetic force of the magnetic material,
And lowering the first reference value or the second reference value. A plurality of conductive members having a predetermined area and a predetermined thickness are brought into contact with a display unit having a touch sensor whose capacitance changes;
Recognizing a change value of the capacitance;
And executing a first function corresponding to a first distribution of touch points satisfying that the change value is equal to or greater than a first reference value. 12. The method of claim 11,
Recognizes a second distribution of the touch points whose change in capacitance is equal to or greater than a second reference value and performs a second function corresponding to the second distribution when the capacitance corresponding to the second distribution is restored to its original state The method further comprising the step of:

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