KR101585476B1 - Mobile terminal and method for controlling the same - Google Patents

Abstract

The present invention relates to a mobile terminal and a control method thereof. The mobile terminal comprises: a main body of a terminal; and a rear side input portion formed on a rear side of the main body of a terminal. The rear side input portion comprises: a rear side key exposed to a rear side; a key bracket where the rear side key is accommodated and a protrusion is formed on a lower side; movement sensing portions arranged on an upper side and a lower side of the key bracket along a movement direction of the key bracket; an elastic member arranged on the lower side or a side of the key bracket, and slidably moving the key bracket; and a flexible printed circuit board arranged in a lower portion of the rear side key, and having a dome mounted on one surface. The dome pressurizes the key bracket, or the rear side key can be slidably in contact with the movement sensing portions along the movement direction of the key bracket.

Description

[0001] MOBILE TERMINAL AND METHOD FOR CONTROLLING THE SAME [0002]

The present invention relates to a mobile terminal having a structure in which clicking feeling is felt through a sliding method 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.

On the other hand, although a method of pressing and clicking the rear input unit has been already known, there is no structure that can feel clicking feeling through the sliding method. If you can not feel the click, there is a problem that the user can not check whether the button worked properly. In addition, there is a disadvantage in that various functions can not be performed because a button can be clicked in only one direction.

The present invention is directed to solving the above-mentioned problems and other problems. Another object of the present invention is to provide a mobile terminal that can be clicked in a sliding manner and a control method thereof.

According to an aspect of the present invention, there is provided a portable terminal comprising: a terminal body; and a rear input unit formed on a rear surface of the terminal body, wherein the rear input unit includes a rear key exposed on the rear surface, A movement sensing part disposed above and below the key bracket along a moving direction of the key bracket; and a plurality of sensors disposed on a lower surface or a side surface of the key bracket, An elastic member for slidably moving the key bracket; and a flexible circuit board disposed at a lower portion of the rear key and having a dome mounted on a surface thereof, wherein the dome presses the key bracket, Is slidably contactable with the movement sensing unit along the moving direction of the key bracket.

A hook is formed on the rear key, the hook is engageable with a groove formed in the key bracket, a printed circuit board is disposed under the key bracket, As shown in FIG.

The movement sensing unit may be a tact key or a dome key for sensing the contact of the key bracket.

When the elastic member is disposed on the lower surface of the key bracket, the elastic member may be a leaf spring.

Wherein when the elastic member is disposed on a side surface of the key bracket, the elastic member is a coil spring and can be disposed on both sides along the movement direction of the key bracket, and the coil spring is formed on the outer circumference of the tact key .

The back key includes an exposed portion exposed at the rear surface and a fixing portion extending from the exposed portion and having a wider section than the exposed portion, and a lower surface of the fixing portion is formed at an edge of an area corresponding to the dome A groove may be formed along the groove, and an elastic body may be provided in the groove.

The printed circuit board may have a through hole through which the key bracket is inserted, and the printed circuit board may be seated in the recess of the rear cover.

According to another aspect of the present invention, there is provided a display device including a front display for displaying first image information, a rear display for displaying second image information, a rear input for inputting functions to the front display or the rear display, A method of controlling a mobile terminal including a control unit for controlling a function of an input unit, the method comprising: inputting a first function to the rear display by a short click or a long click of the rear input unit; And inputting a second function to the rear display by sliding-clicking the rear input unit in a first direction or a second direction in a state where the first function is input, And a plurality of content lists are displayed on the display. .

And inputting the third function to the rear display so that the specific content displayed on the rear display is selected by short-clicking or long-clicking on the rear input unit.

And turning on the power of the rear display by long clicking on the rear input unit.

The back display is powered on by inputting the first function and the volume of the content being reproduced can be adjusted by inputting the second function.

Wherein the step of inputting the first function is a step of entering a standby state for performing the second function and the step of inputting the second function is inputted without a time interval with the step of inputting the first function, The second function may be a screen capture of the first image information displayed on the front display, or a quick memo function on the front display.

Wherein the first function is to cause a camera mode to be executed on a rear display from a state in which the rear display is turned off, and the second function is to zoom in / out on a subject displayed on the rear display after executing the camera mode, Zoom in / out, and the third function may be to photograph a subject in a state displayed on the rear display.

The subject displayed on the rear display may be photographed by a rear camera disposed on one side of the rear display.

Wherein the first function is to display menus on the back display from a state in which the rear display is powered off, the second function is to retrieve a plurality of menus, and the third function is a function of the retrieved icon . ≪ / RTI >

Wherein the first function is to display a message list on the rear display from the state that the rear display is powered off and the second function is to search the list displayed on the rear display, It may be to select a searched list and enter a specific message screen.

Wherein the first function is to display a plurality of selectable rejection message lists on the rear display when a telephone is received, the second function is to retrieve the rejection message list, and the third function is to retrieve the retrieved specific rejection message Lt; / RTI >

Effects of the mobile terminal and the control method according to the present invention will be described as follows.

According to at least one of the embodiments of the present invention, the user can surely recognize whether or not the user clicks by sliding the cursor using the movement detection unit.

Also, according to at least one embodiment of the present invention, there is an advantage that various functions can be performed by clicking using the sliding in the first direction or the second direction by directly connecting the pressed state and the clicked state.

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.
2 is a partial cross-sectional view of the mobile terminal taken along line XX of Fig.
3 is a partial enlarged view of a portion A in Fig.
4 is a cross-sectional view of a mobile terminal according to another embodiment of the present invention.
5 is a view for explaining the arrangement of elastic members according to one embodiment of the present invention.
6 is an exploded perspective view of a rear input portion in accordance with one embodiment of the present invention.
7 is a bottom view of a key bracket coupled with a flexible circuit board according to an embodiment of the present invention.
8 is a perspective view illustrating a combination of a key bracket and a rear key according to an embodiment of the present invention.
9 is a perspective view of a rear input unit according to an embodiment of the present invention.
10 is a cross-sectional view of a rear input portion in accordance with one embodiment of the present invention.
11 is a view for explaining an elastic body formed on a rear key according to an embodiment of the present invention.
12 to 19 are diagrams for explaining a control method of a mobile terminal according to an embodiment of the present invention.
20 is a flowchart of a method of controlling a mobile terminal according to an embodiment of 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.

Terms including ordinals, such as first, second, etc., may be used to describe various elements, but the elements are not limited to these terms. The terms are used only for the purpose of distinguishing one component from another.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The singular expressions include plural expressions unless the context clearly dictates otherwise.

In the present application, the terms "comprises", "having", and the like are used to specify that a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

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 to 1C are block diagrams for explaining a mobile terminal according to the present invention, and FIGS. 1B and 1C are conceptual diagrams showing an example of a mobile terminal according to the present invention in different directions.

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 a power supply unit 190 ), 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, 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, A microphone 226, a battery gauge, an environmental sensor (for example, a barometer, a hygrometer, a thermometer, a radiation detection 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 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, although relevant to a particular type of mobile terminal, is generally applicable to other types of mobile terminals.

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, a rear cover 103 for covering the mounted electronic components can be detachably coupled to the rear case 102. Therefore, when the rear cover 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 rear cover 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 rear cover 103 during the engagement. Meanwhile, the rear cover 103 may be provided with an opening for exposing the camera 121b and 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 spaced apart from each other or disposed integrally with one another, or may be disposed on different surfaces, respectively.

The display unit 151 may include a touch sensor that senses a touch with respect to the display unit 151 so that a control command can be received by a touch method. When a touch is made to the display unit 151, the touch sensor 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 may be a film having a touch pattern and disposed between the window 151a and a display (not shown) on the rear surface of the window 151a, or may be a metal wire . Alternatively, the touch sensor may be formed integrally with the display. For example, the touch sensor may be disposed on a substrate of the display or inside the display.

In this way, the display unit 151 can form a touch screen together with the touch sensor. 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 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.

Hereinafter, embodiments related to a control method that can be implemented in a mobile terminal 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.

Fig. 2 is a partial cross-sectional view of a mobile terminal according to the present invention, taken along line XX of Fig. 1c, and Fig. 3 is a partial enlarged view of a portion A of Fig. 2 and 3, a mobile terminal according to an embodiment of the present invention includes a terminal body and a rear input unit 200 formed on a rear surface of the terminal body, A key bracket 240 for receiving the rear key 210 and having a protrusion 242 formed on a lower surface thereof and a key bracket 240 The movement sensing unit 260 is disposed on the upper side and the lower side of the key bracket 240 along the movement direction of the key bracket 240. The key bracket 240 is disposed on a lower surface or a side surface of the key bracket 240 to slide the key bracket 240 An elastic member 250 and a flexible circuit board 220 disposed under the rear key 210 and having a dome 230 mounted on one surface thereof.

In addition, according to an embodiment of the present invention, a rear display cover 104 on which the rear display 155 is mounted is formed on the rear cover 103, as shown in FIG. 1C and FIG. The rear display cover 104 may be formed by recessing the rear cover 103. At this time, the rear display 155 includes a rear window 155a exposed at the rear and a rear LCD panel 155b formed at the rear of the rear window 155a to output image information.

According to an embodiment of the present invention, the dome 230 may press the key bracket 240 or sense the sliding movement by the movement sensing unit 260, Moves along the movement direction of the bracket 240 toward the movement sensing unit 260 and contacts the movement sensing unit 260.

That is, according to an embodiment of the present invention, the back key 210 can be pressed in the Z direction (the thickness direction of the mobile terminal) and can be clicked and moved in the X or Y direction Sliding clicks become possible.

The rear key 210 is received in the key bracket 240 and is coupled with the key bracket 240. The coupling of the rear key 210 is performed by hooking the hook. 7 and 8, a hook 211 is formed on the rear key 210 and a hook insertion hole 241 is formed in the key bracket 240 at a position corresponding to the hook 211. [ And the hook 211 is inserted and fixed in the hook insertion hole 241 so that the key bracket 240 and the rear key 210 are fixedly coupled. As described above, the rear key 210 and the key bracket 240 are combined and moved together. That is, when the rear key 210 is moved, the key bracket 240 moves together.

8, a protrusion 242 is formed on a lower surface of the key bracket 240, and an elastic member 250 is disposed to surround the protrusion 242. As shown in FIG.

A printed circuit board 270 is disposed under the key bracket 240. The movement sensing unit 260 is formed on the printed circuit board 270 and is controlled by the printed circuit board 270. [ That is, the printed circuit board 270 may perform the function of the control unit 180. [

The movement sensing unit 260 may use a tact key 260 or a dome key 273 as a means for sensing contact with the key bracket 240. [ FIG. 3 illustrates the case where the tact key 260 is used, and FIG. 4 illustrates the case where the dome key 273 is used. Referring to FIG. 3, the tact key 260 includes a moving member 262 which is inserted into the body 261 and moves. That is, when the key bracket 240 is pushed in contact with the moving member 262, the moving member 262 moves while being inserted into the body 261, thereby sensing contact and movement of the key bracket 240 . The movement sensing unit 260 is disposed on the printed circuit board 270 and informs the control unit 180 of the movement.

4, the dome key 273 may be used to sense the touch of the key bracket 240. The dome key 273 may be disposed on the sub flexible circuit board 271 And the sub-flexible printed circuit board 271 is formed extending from the printed circuit board 270. The sub- At this time, the printed circuit board 270 may be used as the flexible circuit board 220.

In addition, in the embodiment of the present invention, the dome 230 is formed on the back surface of the flexible circuit board 220 formed on the rear surface of the rear key 210, so that it is possible to click in the Z direction, The click is made by the elastic member 250.

The elastic member 250 according to an embodiment of the present invention may be disposed on the lower surface or the side surface of the key bracket 240. When the elastic member 250 is disposed on the lower surface of the key bracket 240, When the elastic member 250 is disposed on the side surface of the key bracket 240, the elastic member 250 preferably includes a coil spring 252 And are disposed on both sides along the movement direction of the key bracket 240, respectively.

5A to 5D are views for explaining the arrangement of the elastic member 250 according to an embodiment of the present invention. FIG. 5A shows that the elastic member 250 is disposed on the lower surface of the key bracket 240, 5B to 5D show that the elastic member 250 is disposed on the side surface of the key bracket 240. [

5B to 5C, a pair of coil springs 252 are respectively disposed at the upper and lower ends of the key bracket 240 to provide a uniform restoring force. However, the coil springs 252 may be disposed diagonally as shown in FIG. 5B, And 5c, respectively. Further, as shown in FIG. 5D, since the coil spring 252 has a predetermined diameter, the coil spring 252 may be disposed on the outer circumference of the tact key 260. These configurations are all for returning the back key 210 to the original position when the user pushes the back key 210 in the first direction or the second direction and releases the hand, Any member having elasticity can be used sufficiently. At this time, if the first direction is the X direction, the second direction may be the Y direction.

6 is an exploded perspective view of a rear input unit 200 according to an embodiment of the present invention. The printed circuit board 270 is formed with a through hole 275 through which the key bracket 240 is inserted, It can be seen that the substrate 270 is seated in the recess 105 of the rear cover 103.

A rear display 155 is disposed on one side of the recess 105 and a rear camera 121b and a flash 124 are disposed on a side surface of the rear display 155.

9 is a perspective view of a rear input unit 200 according to an embodiment of the present invention. FIG. 10 is a sectional view of a rear input unit 200 according to an embodiment of the present invention. FIG. 7 is a view for explaining an elastic body 280 formed on the rear key 210 related to the example. 3, 9 to 11, the rear key 210 according to an embodiment of the present invention includes an exposed portion 215 exposed at the rear surface, and an exposed portion 215 extending from the exposed portion 215, And a lower surface of the fixing portion 216 is formed with a groove 213 along the edge of the region corresponding to the dome 230, And an elastic body 280 is provided on the elastic body 213. The elastic body 280 may be a thermoplastic polyurethane (TPU).

Hereinafter, a method of controlling a mobile terminal according to an embodiment of the present invention will be described with reference to FIGS. 12 to 18. FIG.

According to an embodiment of the present invention, a method of controlling a mobile terminal is provided, including a front display 151 for displaying first image information, a rear display 155 for displaying second image information, A rear input unit 200 for inputting functions to the rear display 155 and a control unit 180 for controlling the functions of the rear input unit 200 are provided.

20 is a flowchart illustrating a method of controlling a mobile terminal according to an embodiment of the present invention. Referring to FIG. 20, a short-click or a long-click is performed on the rear input unit 200, A step of inputting a first function (S10) to the rear display (155); sliding the rear input unit (200) in a first direction or a second direction in a state where the first function is input, (S20), and a plurality of contents list is displayed on the rear display (155) by the step of inputting the second function.

At this time, inputting functions to the front display 151 and the rear display 155 is executed by the rear input unit 200. [

According to an embodiment of the present invention, the rear input unit 200 can not only click in the Z direction but also slide in X and Y directions. At this time, the click in the Z direction includes a short click and a long click, and the short click is performed by touching the rear input unit 200 (more specifically, the rear key 210) Means that the rear input unit 200 is pressed in the Z direction for a time of 0.5 second or more, for example. The main controller 160 mainly performs a function of turning on / off the power of the rear display 155 by the short-click or the long click, or to put the standby state for performing the next step.

The sliding click in the present specification is an operation for pushing the back key 210 (more specifically, the rear key input unit 200) in the X direction or the Y direction so as to make contact with the movement detection unit 260 . At this time, if the first direction is the X direction, the second direction is the Y direction, and the first direction and the second direction do not necessarily have to be formed vertically, but an intersecting direction is sufficient, and the X direction and Y Direction means the direction at the main surface of the mobile terminal 100. [

The sliding click mainly performs a function of searching various contents list. For example, if the rear input unit 200 is slidingly clicked while various menu icons are displayed on the rear display 155, the next icon is displayed in the selection standby state one by one in order . At this time, the selection waiting state means a state in which selection can be performed immediately when an operation for selecting (for example, a short click) is performed.

And a step of short-clicking on the rear input unit 200 to input a third function (S30) to the rear display 155 so that a specific content displayed on the rear display 155 is selected . When a specific function is inputted by the above operation or procedure, the selected function is performed (S40).

In some embodiments, a sliding click may be performed while maintaining the state of the short-click or long-click. In some embodiments, a short-click or a long-click may be performed after a sliding click to perform a specific function. At this time, a short-click or long-click for inputting the first function and a short-click or long-click for inputting the third function can implement a plurality of functions by a plurality of possible combinations. For example, the combination for the first function and the third function input may have a combination of a short-click-short-click, a short-click-long-click, a long-click-short-click, and a long-click-long-click.

On the other hand, if a combination of a click for the first function input and a click for inputting the third function is combined with a sliding click for inputting the second function, more combinations are possible. That is, there may be a plurality of combinations of a short click or a long click in the step of inputting the first function and a sliding click for inputting the second function, thereby implementing a plurality of functions. The combination of clicks for inputting the first to third functions is merely an example, and the present invention is not limited to this, and a short-click or a long-click may be switched with each other.

Hereinafter, a specific control method of a mobile terminal according to an embodiment of the present invention will be described.

The user may power off the rear display 155 by long clicking on the rear input unit 200 while the rear display 155 is on, The power of the rear display 200 can be turned on by long clicking on the rear input unit 200 in a state where the rear display 200 is turned off. At this time, it is possible to turn off the power at any stage. However, the long click at this time should be maintained in the depressed state for more than one second, for example.

As shown in FIG. 12, the rear display 155 is turned on by inputting the first function, and the volume of the content being reproduced is adjusted by the step of inputting the second function .

12A, the rear input unit 200 may be clicked to cause the rear display unit 155 or the front display unit 151 to be turned on. Then, as shown in FIG. 12B, the rear input unit 200 may be rotated in the first direction The volume can be adjusted by moving in the second direction. The size of the volume can be displayed on the front display 151 and on the back display 155 as shown in FIG. 12C. The first direction or the second direction may be an up-down direction or a left-right direction, which means an up-and-down direction in an embodiment of the present invention. However, the present invention is not limited thereto, and a direction intersecting on the same plane as described above is sufficient.

FIGS. 13 and 14 are diagrams for explaining a process of screen capture or quick memo. In the step of inputting a first function, a step of entering a standby state for performing a second function , And the second function can be input by sliding-clicking while maintaining the click state for inputting the first function. Herein, the input of the second function is input without inputting a time interval with the input of the first function, and the second function is input to the screen of the first image information displayed on the front display 151 Screen capture or may perform a quick memo function on the front display 151. [ The quick memo function refers to a function that allows the user to directly use the body such as a hand on the window 151a or to make a note directly by the user using a conductive member. That is, it means a function to memo without using the keypad of the mobile terminal 100.

13A and 14A, when the rear input unit 200 is short-clicked and then the rear input unit 200 is slid downward or upward as shown in FIGS. 13B and 14B, a screen capture function or a quick memo Function can be performed.

15 is a view for explaining a process of photographing a photograph using the rear camera 121b. In this case, when the rear display unit 155 is turned off, the rear input unit 200 is moved in the first direction The first function is inputted so that the camera mode is executed on the rear display 155 by long clicking in the second direction. Thereafter, after executing the camera mode, the controller 160 causes the rear input unit 200 to slide in the first direction or the second direction to zoom in / out on the subject displayed on the rear display 155 2 Perform the step of entering the function. Thereafter, the step of inputting the third function for photographing a subject in a state displayed on the rear display 155 is performed.

15A, when the rear input unit 200 is long-clicked downward, the camera mode is entered and the subject is displayed on the rear display 155. As shown in FIG. 15B, the rear input unit 200 , The size or the ratio of the subject is adjusted. As shown in FIG. 15C, a photograph is taken when the rear input unit 200 is short-clicked with the subject having a specific size.

At this time, the subject displayed on the rear display 155 can be photographed by the rear camera 121b disposed on one side of the rear display 155 to obtain a clearer picture.

The sliding click may be performed by simply sliding the rear input unit 200 to perform a sliding click. For example, the sliding input may be performed by sliding the rear input unit 200 for more than 0.5 seconds. ) May perform a specific function. When the long sliding click is performed as described above, the second function can be continuously performed. In FIG. 15, the size of the subject can be continuously reduced or continuously increased.

Further, in the menu selection function described later, when the second function is inputted, when the long sliding is clicked, the menu selection waiting state continuously changes, so that the menu can be selected more quickly.

16 is a view for explaining a menu selection function according to an embodiment of the present invention. By long-clicking on the rear input unit 200 while the rear display unit 155 is turned off, A first function is input to display menu bars on the rear display 155, a plurality of menus are input by inputting a second function, and a selected menu function is executed by selecting the retrieved menu.

16A, when the rear input unit 200 is long-clicked with the rear display 155 turned off, various menu bars are displayed on the rear display 155, and as shown in FIG. 16B, So that the menu is sequentially selected by sliding-clicking the input unit 200. As shown in Fig. 16C, when a menu bar in the selection standby state is pressed, the function of the selected menu is performed.

FIG. 16 shows a menu bar for displaying the contents of a menu by text, but it may also be displayed as an icon as shown in FIG.

17 is the same as that shown in Fig. 16 except for the icon, so a detailed description thereof will be omitted.

18 is a diagram for explaining a function of selecting various messages according to an embodiment of the present invention. In the state in which the rear display 155 is turned off by inputting a first function, A message list is displayed on the rear display 155 by long clicking on the input unit 200 and a list displayed on the rear display 155 is retrieved by inputting a second function, The selected list is selected by the inputting step and the specific message screen is entered.

18A, when the rear input unit 200 is long clicked, a message list is displayed on the rear display 155. When the rear input unit 200 is slid and clicked as shown in FIG. 18B, Are sequentially searched and placed in a selective waiting state. Thereafter, as shown in FIG. 18C, when a specific message is clicked, all contents of the selected message are displayed on the rear display 155.

FIG. 19 is a view for explaining a rejection message selection function according to an embodiment of the present invention. In the step of inputting a first function, a plurality of rejection message lists selectable on the rear display 155 when a telephone is received In the step of inputting the second function, the rejection message list is searched. In the step of inputting the third function, the searched specific rejection message may be transmitted.

That is, as shown in FIG. 19A, when the telephone is received, whether or not to receive a call is displayed on the rear display 155. When the telephone is not received, the back input unit 200 is clicked. When the rear input unit 200 is clicked, a rejection message list is displayed on the rear display 155 as shown in FIG. 19B, and a rejection message can be retrieved by sliding-clicking on the rear input unit 200, As shown, when you click on a specific rejection message, the selected rejection message is sent to the other party.

The foregoing detailed description should not be construed in all aspects as limiting 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 150: output unit
160: interface unit 170: memory
180: control unit 190: power supply unit

Claims (20)

A terminal body; And
And a rear input unit formed on a rear surface of the terminal body,
The back-
A backside exposed rear key;
A key bracket on which the rear key is received and a protrusion is formed on a lower surface thereof;
A movement sensing unit disposed on the upper side and the lower side of the key bracket along the movement direction of the key bracket;
An elastic member disposed on a lower surface or a side surface of the key bracket to slidably move the key bracket; And
And a flexible circuit board disposed at a lower portion of the rear key and having a dome mounted on a surface thereof,
Wherein the dome presses the key bracket or the rear key is slidably contactable with the movement sensing part along the moving direction of the key bracket. The method according to claim 1,
Wherein a hook is formed on the rear key, and the hook is engaged with a groove formed on the key bracket. The method according to claim 1,
Wherein a printed circuit board is disposed below the key bracket, and the movement sensing unit is formed on the printed circuit board. The method of claim 3,
Wherein the movement detection unit is a tact key or a dome key for detecting contact of the key bracket. The method according to claim 1,
Wherein when the elastic member is disposed on the lower surface of the key bracket, the elastic member is a leaf spring. 5. The method of claim 4,
Wherein when the elastic member is disposed on a side surface of the key bracket, the elastic member is a coil spring and is disposed on both sides along the moving direction of the key bracket. The method according to claim 6,
Wherein the coil spring is formed on an outer circumference of the tact key. The method according to claim 1,
Wherein the rear key comprises:
An exposed portion exposed to the rear surface; And
And a fixing portion extending from the exposed portion and having a cross section wider than the exposed portion,
Wherein a bottom surface of the fixing portion is formed with a groove along an edge of an area corresponding to the dome, and an elastic body is provided in the groove. The method of claim 3,
Wherein the printed circuit board is formed with a through hole into which the key bracket is inserted, and the printed circuit board is seated in a recessed portion of the rear cover. A rear display for displaying second image information, a rear input for inputting a function to the front display or a rear display, and a control unit for controlling the function of the rear input unit. A method of controlling a terminal,
Inputting a first function to the rear display by a short click or a long click of the rear input unit;
And inputting a second function to the rear display by sliding-clicking the rear input unit in a first direction or a second direction in a state where the first function is input,
And a plurality of contents lists are displayed on the rear display by inputting the second function. 11. The method of claim 10,
And inputting a third function to the rear display so that a specific content displayed on the rear display is selected by short-clicking or long-clicking on the rear input unit. Control method. 12. The method of claim 11,
And inputting a fourth function to the rear display so that the power of the rear display is turned off by long clicking on the rear input unit. 11. The method of claim 10,
Wherein the power of the rear display is turned on by inputting the first function and the volume of the content being reproduced is adjusted by inputting the second function. 11. The method of claim 10,
Wherein the inputting of the first function is a step of entering a standby state for performing the second function. 15. The method of claim 14,
The inputting of the second function may be performed without a time interval between the inputting of the first function and the second function being screen capture of the first image information displayed on the front display , Or performs a quick memo function on the front display. 12. The method of claim 11,
Wherein the first function is to cause the camera mode to be executed on the rear display from the power off state of the rear display,
The second function is to zoom in / out on a subject displayed on the rear display after executing the camera mode,
And the third function photographs a subject in a state displayed on the rear display. 17. The method of claim 16,
Wherein the subject displayed on the rear display is photographed by a rear camera disposed on one side of the rear display. 12. The method of claim 11,
Wherein the first function is to display menus on the back display from a state in which the rear display is powered off, the second function is to retrieve a plurality of menus, and the third function is a function of the retrieved icon To the mobile terminal. 12. The method of claim 11,
Wherein the first function is to display a message list on the rear display from the state that the rear display is powered off and the second function is to search the list displayed on the rear display, And selecting a searched list to enter a specific message screen. 12. The method of claim 11,
Wherein the first function is to display a plurality of selectable rejection message lists on the rear display when a telephone is received, the second function is to retrieve the rejection message list, and the third function is to retrieve the retrieved specific rejection message To the mobile terminal.

Images