KR101513037B1 - Mobile terminal with touch sensor - Google Patents

Abstract

The present invention relates to a terminal capable of recognizing a proximity touch without a separate proximity sensor. According to the embodiment of the present invention, the proximity touch can be recognized by raising the sensitivity of part or all of the existing touch screen without using a proximity sensor, so that the structure is simple and convenient to use.

Description

[0001] MOBILE TERMINAL WITH TOUCH SENSOR [0002]

The present invention relates to a mobile terminal having a touch sensor.

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

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

In order to support and enhance the function of such a terminal, it is considered to improve a structural part and / or a software part of the terminal, and in particular, a user input part for receiving input in various forms from a user is provided in the terminal. A representative example thereof is a proximity sensor capable of recognizing a touch by simply approaching the sensor, without direct contact with the sensor. However, when such a proximity sensor is separately provided in the terminal, the structure is complicated and there is a drawback that it is disadvantageous to the terminal design due to the space occupied by the proximity sensor.

The present invention provides a terminal capable of recognizing a proximity touch using an existing touch sensor.

According to an aspect of the present invention, there is provided a portable terminal comprising: a touch sensor that uses a conductive material whose capacitance changes as a conductor approaches and outputs a predetermined touch signal according to a change in the capacitance; And a control unit for amplifying the sensitivity of at least a part of the touch sensor in a specific mode so as to recognize the proximity touch signal outputted when the touch sensor receives the proximity touch as a user input signal.

Further, the portable terminal according to an embodiment of the present invention for realizing the above-mentioned problem may further include a display unit, and may display a predetermined icon on the display unit when there is a proximity touch by the conductor.

In order to achieve the above-described object, the portable terminal of the present invention may further include a microphone and a voice output unit to perform a predetermined function in a call mode.

Effects of the 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, a separate proximity sensor is not required, no additional cost is required, the structure is simple, and the design of the terminal is advantageous.

In addition, it provides a convenient function by detecting proximity touch in a specific mode.

In addition, when projecting an image through the projector module, the user can operate the projector without physically touching the input portion, and the projected image is not shaken.

Hereinafter, a mobile terminal related to the present invention will be described in detail with reference to the drawings. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role.

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

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

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

Hereinafter, the components will be described in order.

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

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

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

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

The broadcast-related information may exist in various forms. For example, an EPG (Electronic Program Guide) of DMB (Digital Multimedia Broadcasting) or an ESG (Electronic Service Guide) of Digital Video Broadcast-Handheld (DVB-H).

For example, the broadcast receiving module 111 may be a Digital Multimedia Broadcasting-Terrestrial (DMB-T), a Digital Multimedia Broadcasting-Satellite (DMB-S), a Media Forward Link Only And a Digital Broadcasting System (ISDB-T) (Integrated Services Digital Broadcast-Terrestrial). Of course, the broadcast receiving module 111 may be adapted to other broadcasting systems as well as the digital broadcasting system described above.

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

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

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

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

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

Referring to FIG. 1, an A / V (Audio / Video) input unit 120 is for inputting an audio signal or a video signal, and may include a camera 121 and a microphone 122. The camera 121 processes image frames such as still images or moving images obtained by the image sensor in the video communication mode or the photographing mode. The processed image frame can be displayed on the display unit 151. [

The image frame processed by the camera 121 may be stored in the memory 160 or transmitted to the outside through the wireless communication unit 110. [ Two or more cameras 121 may be provided depending on the use environment.

The microphone 122 receives an external sound signal through a microphone in a communication mode, a recording mode, a voice recognition mode, or the like, and processes it as electrical voice data. The processed voice data can be converted into a form that can be transmitted to the mobile communication base station through the mobile communication module 112 when the voice data is in the call mode, and output. Various noise reduction algorithms may be implemented in the microphone 122 to remove noise generated in receiving an external sound signal.

The user input unit 130 generates input data for a user to control the operation of the terminal. The user input unit 130 may include a key pad dome switch, a touch pad (static / static), a jog wheel, a jog switch, and the like.

The sensing unit 140 senses the current state of the mobile terminal 100 such as the open / close state of the mobile terminal 100, the position of the mobile terminal 100, the presence or absence of user contact, the orientation of the mobile terminal, And generates a sensing signal for controlling the operation of the mobile terminal 100. For example, when the mobile terminal 100 is in the form of a slide phone, it is possible to sense whether the slide phone is opened or closed. It is also possible to sense whether the power supply unit 190 is powered on, whether the interface unit 170 is connected to an external device, and the like. Meanwhile, the sensing unit 140 may include a proximity sensor 141.

The output unit 150 is for generating an output relating to visual, auditory or tactile sense and includes a display unit 151, an acoustic output module 152, an alarm unit 153, a haptic module 154, 155, and the like.

The display unit 151 displays (outputs) information processed by the mobile terminal 100. For example, when the mobile terminal is in the call mode, a UI (User Interface) or a GUI (Graphic User Interface) associated with a call is displayed. When the mobile terminal 100 is in the video communication mode or the photographing mode, the photographed and / or received video or UI and GUI are displayed.

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

Some of these displays may be transparent or light transmissive so that they can be seen through. This can be referred to as a transparent display, and a typical example of the transparent display is TOLED (Transparent OLED) and the like. The rear structure of the display unit 151 may also be of a light transmission type. With this structure, the user can see an object located behind the terminal body through the area occupied by the display unit 151 of the terminal body.

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

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

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

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

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

Examples of the proximity sensor include a transmission type photoelectric sensor, a direct reflection type photoelectric sensor, a mirror reflection type photoelectric sensor, a high frequency oscillation type proximity sensor, a magnetic proximity sensor, and an infrared proximity sensor.

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

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

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

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

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

In addition to vibration, the haptic module 154 may be configured to generate a plurality of stimuli such as pin exhaust heat, a spraying force or suction force of the air through the injection port or the suction port, scratches on the skin surface, contact of an electrode, And various effects of tactile effect such as effect of reproducing the cold sensation using the heat absorbing or heatable element can be generated.

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

The projector module 155 is a component for performing an image project function using the mobile terminal 100 and is similar to the image displayed on the display unit 151 in accordance with a control signal of the controller 180 Or at least partly display another image on an external screen or wall.

Specifically, the projector module 155 includes a light source (not shown) that generates light (for example, laser light) for outputting an image to the outside, a light source And a lens (not shown) for enlarging and outputting the image at a predetermined focal distance to the outside. Further, the projector module 155 may include a device (not shown) capable of mechanically moving the lens or the entire module to adjust the image projection direction.

The projector module 155 can be divided into a CRT (Cathode Ray Tube) module, an LCD (Liquid Crystal Display) module and a DLP (Digital Light Processing) module according to the type of the display means. In particular, the DLP module may be advantageous for miniaturization of the projector module 151 by enlarging and projecting an image generated by reflecting light generated from a light source on a DMD (Digital Micromirror Device) chip.

Preferably, the projector module 155 may be provided longitudinally on the side, front or back side of the mobile terminal 100. It goes without saying that the projector module 155 may be provided at any position of the mobile terminal 100 as occasion demands.

The memory unit 160 may store a program for processing and controlling the control unit 180 and temporarily store the input / output data (e.g., telephone directory, message, audio, For example. The memory unit 160 may also store the frequency of use of each of the data (for example, each telephone number, each message, and frequency of use for each multimedia). In addition, the memory unit 160 may store data on vibration and sound of various patterns output when the touch is input on the touch screen.

The memory 160 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory), a RAM (Random Access Memory), SRAM (Static Random Access Memory), ROM (Read Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM A disk, and / or an optical disk. The mobile terminal 100 may operate in association with a web storage that performs a storage function of the memory 160 on the Internet.

The interface unit 170 serves as a path for communication with all external devices connected to the mobile terminal 100. The interface unit 170 receives data from an external device or supplies power to each component in the mobile terminal 100 or transmits data to the external device. For example, a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, a port for connecting a device having an identification module, an audio I / O port, A video input / output (I / O) port, an earphone port, and the like may be included in the interface unit 170.

The identification module is a chip for storing various information for authenticating the use right of the mobile terminal 100 and includes a user identification module (UIM), a subscriber identity module (SIM), a general user authentication module A Universal Subscriber Identity Module (USIM), and the like. Devices with identification modules (hereinafter referred to as "identification devices") can be manufactured in a smart card format. Accordingly, the identification device can be connected to the terminal 100 through the port.

When the mobile terminal 100 is connected to an external cradle, the interface unit may be a path through which power from the cradle is supplied to the mobile terminal 100, or various command signals input by the user to the cradle may be transmitted It can be a passage to be transmitted to the terminal. The various command signals or the power source input from the cradle may be operated as a signal for recognizing that the mobile terminal is correctly mounted on the cradle.

The controller 180 typically controls the overall operation of the mobile terminal. For example, voice communication, data communication, video communication, and the like. The control unit 180 may include a multimedia module 181 for multimedia playback. The multimedia module 181 may be implemented in the control unit 180 or may be implemented separately from the control unit 180. [

The controller 180 may perform a pattern recognition process for recognizing handwriting input or drawing input performed on the touch screen as characters and images, respectively.

The power supply unit 190 receives external power and internal power under the control of the controller 180 and supplies power necessary for operation of the respective components.

The various embodiments described herein may be embodied in a recording medium readable by a computer or similar device using, for example, software, hardware, or a combination thereof.

According to a hardware implementation, the embodiments described herein may be implemented as application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays May be implemented using at least one of a processor, controllers, micro-controllers, microprocessors, and other electronic units for performing other functions. In some cases, The embodiments described may be implemented by the control unit 180 itself.

According to a software implementation, embodiments such as the procedures and functions described herein may be implemented with separate software modules. Each of the software modules may perform one or more of the functions and operations described herein. Software code can be implemented in a software application written in a suitable programming language. The software code is stored in the memory 160 and can be executed by the control unit 180. [

2A is a perspective view of an example of a mobile terminal or a mobile terminal according to the present invention.

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

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

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

The display unit 151, the sound output unit 152, the camera 121, the user input units 130/131 and 132, the microphone 122, the interface 170, and the like may be disposed in the front body 101 have.

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

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

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

FIG. 2B is a rear perspective view of the portable terminal shown in FIG. 2A.

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

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

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

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

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

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

The rear case 102 may further include a touch pad 135 for sensing a touch. The touch pad 135 may also be of a light transmission type like the display unit 151. [ In this case, if the display unit 151 is configured to output time information on both sides, the time information can be recognized through the touch pad 135 as well. The information output on both sides may be all controlled by the touch pad 135. [ Alternatively, a display may be additionally mounted on the touch pad 135, and a touch screen may be disposed on the rear case 102 as well.

The touch pad 135 operates in correlation with the display portion 151 of the front case 101. The touch pad 135 may be disposed parallel to the rear of the display unit 151. The touch pad 135 may have a size equal to or smaller than that of the display unit 151.

Hereinafter, a related operation of the display unit 151 and the touch pad 135 will be described with reference to FIGS. 3A and 3B.

3A and 3B are front views of a portable terminal for explaining an operation state of the portable terminal according to the present invention.

Various types of time information can be displayed on the display unit 151. [ These pieces of information can be displayed in the form of letters, numbers, symbols, graphics, or icons.

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

FIG. 3A shows a touch input to a soft key through a front surface of a terminal body.

The display unit 151 may operate as an entire area or may be divided into a plurality of areas and operated. In the latter case, the plurality of areas can be configured to operate in association with each other.

For example, an output window 151a and an input window 151b are displayed on the upper and lower portions of the display unit 151, respectively. The output window 151a and the input window 151b are areas allocated for outputting or inputting information, respectively. In the input window 151b, a soft key 151c in which a number for inputting a telephone number or the like is displayed is output. When the soft key 151c is touched, a number corresponding to the touched soft key is displayed on the output window 151a. When the first operation unit 131 is operated, call connection to the telephone number displayed on the output window 151a is attempted.

FIG. 3B shows the input of a touch applied to the soft key through the rear surface of the terminal body. FIG. 3A shows a case where the terminal body is vertically arranged, and FIG. 3B shows a case where the terminal body is arranged horizontally. The display unit 151 may be configured to convert the output screen according to the arrangement direction of the terminal body.

3B shows that the text input mode is activated in the portable terminal. The display unit 151 displays an output window 151a 'and an input window 151b'. In the input window 151b ', a plurality of soft keys 151c' displayed with at least one of letters, symbols, and numbers may be arranged. The soft keys 151c 'may be arranged in the form of a QWERTY key.

When the soft keys 151c 'are touched through the touch pad 135 (see FIG. 2B), characters, numbers, symbols corresponding to the touched soft keys are displayed on the output window 151a'. As described above, the touch input through the touch pad 135 is advantageous in that the soft key 151c 'can not be blocked by the finger when the touch is input, compared with the touch input through the display unit 151. [ In the case where the display unit 151 and the touch pad 135 are formed to be transparent, the fingers located on the rear side of the terminal body can be visually confirmed, thereby enabling a more accurate touch input.

The display unit 151 or the touch pad 135 may be configured to receive a touch input by scrolling, as well as the input method described in the above embodiments. The user can move a cursor or a pointer located on an object displayed on the display unit 151, for example, an icon or the like, by scrolling the display unit 151 or the touch pad 135. [ Further, when the finger is moved on the display portion 151 or the touch pad 135, the path along which the finger moves may be visually displayed on the display portion 151. [ This will be useful for editing the image displayed on the display unit 151. [

One function of the terminal may be executed in response to a case where the display unit 151 (touch screen) and the touch pad 135 are touched together within a predetermined time range. In the case of being touched together, there may be a case where the user clamps the terminal body using the thumb and index finger. The one function may be activation or deactivation of the display unit 151 or the touch pad 135, for example.

The proximity sensor 141 described with reference to Fig. 1 will be described in more detail with reference to Fig.

4 is a conceptual diagram for explaining the proximity depth of the proximity sensor.

As shown in FIG. 4, when a pointer such as a user's finger, a pen, or the like approaches the touch screen, the proximity sensor 141 disposed in or near the touch screen senses the proximity sensor and outputs a proximity signal.

The proximity sensor 141 may be configured to output different proximity signals according to the distance between the proximity-touched pointer and the touch screen (hereinafter referred to as "proximity depth").

In FIG. 4, for example, a cross-section of a touch screen having proximity sensors capable of sensing three proximity depths is illustrated. Of course, proximity sensors that detect less than three or more than four proximity depths are also possible.

Specifically, when the pointer is completely in contact with the touch screen (d ₀ ), it is recognized as a contact touch. If the pointer is located on the touch screen at a distance less than the distance d ₁ , it is recognized as a proximity touch of the first proximity depth. If the pointer is located on the touch screen at a distance of d ₁ or more and less than distance d ₂ , it is recognized as a proximity touch of the second proximity depth. If the pointer is located on the touch screen at a distance of d ₂ or more and less than d ₃ distance, it is recognized as a proximity touch of the third proximity depth. If the pointer is positioned apart from the touch screen by a distance d ₃ or more, it is recognized that the proximity touch is released.

Accordingly, the controller 180 can recognize the proximity touch as various input signals according to the proximity depth and proximity position of the pointer, and perform various operation control according to the various input signals.

5 is a conceptual diagram for explaining a control method for a touch operation in a form in which a pair of display units 156 and 157 are overlapped.

The terminal shown in this figure is a folder type terminal connected to a main body so that a folder portion is foldable. The first display unit 156 mounted on the folder unit may be of a light transmitting type or a transparent type such as TOLED or the second display unit 157 mounted on the main body may be a form that does not transmit light like an LCD. The first and second display units 156 and 157 may be configured as a touch screen capable of touch input.

For example, when a touch (contact touch or proximity-touch) is detected with respect to the first display unit or the TOLED 156, At least one of the image lists displayed in the TOLED 156 may be selected or run.

Hereinafter, with respect to the manner in which the information displayed on the other display unit or the LCD 157 is controlled when touching the TOLED 156 exposed to the outside in an overlapped form, a touch, a long touch, a long touch and drag ), And so on.

In the overlapped state (the mobile terminal is in a closed state), the TOLED 156 is disposed in an overlapped manner on the lower side of the LCD 157. [ In this state, if a touch such as a long touch (for example, a touch that lasted for 2 seconds to 3 seconds) is detected in a manner different from the touch for controlling the image displayed on the TOLED 156 in advance, ) Causes at least one image of the image list displayed on the LCD 157 to be selected according to the sensed touch input. The result of the execution of the selected image is displayed on the TOLED 156.

The long touch may also be used to selectively move a desired one of the entities displayed on the LCD 157 to the TOLED 156 (without performing an execution operation therefor). That is, when a user selects one area of the TOLED 156 corresponding to a specific entity of the LCD 157 In the case of a long touch, the control unit 180 moves the corresponding object to the TOLED 156 to be displayed. The entity displayed on the TOLED 155 may also be displayed on the LCD 157 in accordance with a predetermined touch input to the TOLED 156, for example, flicking, swirling, and the like. In this drawing, the menu No. 2 displayed on the LCD 156 is displayed on the TOLED 156.

If another input, for example a drag, is detected in addition to the long touch, the control unit 180 is a function related to the image selected by the long touch, for example, a preview screen for the image is displayed on the TOLED 156. [ As shown in FIG. In this drawing, a case where a preview (male photograph) is performed on the menu No. 2 (image file) is illustrated.

The control unit 180 displays a selection cursor (or a selection bar) of the LCD 157 in a state in which the preview screen is outputted while maintaining the long touch and further dragging the TOLED 156 toward another image And displays the image selected by the selection cursor on a preview screen (female photograph). Thereafter, when the touch (long touch and drag) ends, the controller 180 displays the first image selected by the long touch.

When the slide (the operation of the proximity touch corresponding to the drag) is detected together with the long proximity touch (the proximity touch continuing for at least 2 seconds to 3 seconds) to the TOLED 156, the touch operation (long touch and drag) .

When a touch operation other than those described above is detected, the controller 180 can operate in the same manner as a general touch control method.

The control method for the touch operation in the overlapped form can be applied to a terminal having a single display. In addition, the present invention can be applied to a terminal different from a folder type having a dual display.

FIGS. 6A and 6B are views referred to the description of the proximity touch recognition area where the proximity signal is detected and the haptic area where the tactile effect occurs.

6A shows objects such as icons and menu items in a circular form for convenience of explanation. The area of the object displayed on the display unit 151 can be divided into a first area A in the center and a second area B surrounding the center area as shown in FIG. 6A. The first region A and the second region B can be configured to generate tactile effects having different intensities or patterns. For example, when the second region B is touched, a first vibration is output, and when the first region A is touched, a second vibration larger than the first vibration is output.

In the case where the proximity touch recognition area and the haptic area are simultaneously set in the area where the object is displayed, the haptic area where the tactile effect is generated and the proximity touch area where the proximity signal is detected Can be set differently. That is, the haptic area may be set narrower than the proximity touch recognition area, or the haptic area may be set wider than the proximity touch recognition area. For example, in (a) of FIG. 6A, the area including the first area A and the second area B may be a proximity touch recognition area, and the first area A may be set as a haptic area.

(N > 4) as shown in Fig. 6 (a), as shown in Fig. 6 (b) It is also possible to divide into two areas. Each divided region can be configured to generate a tactile effect with different intensities or patterns. Even when the area in which one object is displayed is divided into three or more areas, the haptic area and the proximity touch recognition area can be set differently according to the use environment.

The size of the proximity touch recognition area may be changed depending on the proximity depth to the display unit 151. [ That is, as shown in (a) of FIG. 6, the corresponding proximity touch recognition area may be gradually reduced to 'C', 'B', and 'A' according to the proximity depth to the display unit 151, Or the contiguous touch recognition area corresponding to the proximity depth to the display unit 151 may be gradually increased. In this case as well, the haptic area can be set to a constant size regardless of the proximity depth to the display unit 151, such as the 'H' area shown in FIG. 6B (b).

 In the case of dividing the area in which the object is displayed for the setting of the haptic area or the proximity touch recognition area, in addition to the concentric segmentation as shown in Fig. 6A, segmentation in the horizontal direction or vertical direction, radial segmentation, And various methods such as partitioning can be used.

A configuration in which the above-described projector module is provided in the bar-shaped mobile terminal 100 will be described with reference to FIGS. 7A and 7B. 7A and 7B are perspective views of an example of a mobile terminal according to the present invention.

The main body 101 of the mobile terminal may be coupled with a projector body 105 having the projector module 155 so as to be rotatable.

That is, the projector body 105 can be hinged to the main body 101, and the projection angle of the image can be adjusted when the image is projected using the projector module 155 provided in the projector body 105 And the camera 121 may be disposed on the projector body 105 so that the image projected by the projector module 155 can be photographed.

FIG. 7A shows a state before the projector body 105 rotatably coupled with the main body 101 is rotated, and FIG. 7B shows a state after the projector body 105 is rotated.

Hereinafter, a touch sensor usable as the user input unit 130 of the mobile terminal 100 will be described in detail.

8 and 9, an example of the capacitance change and the touch sensor according to the touch will be described. FIG. 8 is a conceptual view of a touch button showing a change in capacitance when a touch is made, and FIG. 9 shows an example of a capacitive touch sensor.

Referring to FIG. 8, a change in capacitance of a conductive material by touch will be described first. For ease of understanding, a touch button having a simple structure will be described as an example.

The contact button basically has a contact between the conductive materials 80 and 81, and a predetermined parasitic capacitance (hereinafter referred to as "Cp ") component 90 exists between them. Here, the contact is not necessarily essential, and depending on the distribution of the conductive material, it is possible to have a predetermined parasitic capacitance even without forming a contact point. The touch button is generally formed in a shape that surrounds the conductive material 80 and 81 with a predetermined medium 88, mainly a glass or a plastic material. When the touch button is touched by a conductor, for example, when a human hand 85 is touched, the predetermined medium 88 is held between the respective conductive materials 80 and 81 and the hand 85 (Hereinafter, referred to as "Cf ") components are generated through the capacitors 91 and 92, respectively. Accordingly, when there is a touch, the total capacitance value of the touch button is increased by the sum of Cp and Cf. Such a change in capacitance value is caused by a change in the number of times of charging or the time required for charging for a predetermined time when the voltage is applied to the touch button and charging and discharging are repeated. The touch control unit (not shown) senses this change and can determine whether or not it is touched.

So far, we have studied the principle of sensing touch by a conductor in a conventional capacitive touch sensor. Hereinafter, with reference to Fig. 9, an example of the capacitive touch sensor using the above-described change in capacitance will be described.

9, the capacitance type touch sensor unit includes two plates 20 and 21 and a touch control unit 10, each of which has a conductive material having a predetermined parasitic capacitance (Cp) . The touch control unit senses a change in capacitance of the conductive material, and determines whether the conductive material is touched or not, and outputs a touch signal. The conductive material is preferably indium-tin oxide (ITO).

More specifically, the sensing unit 202 formed by applying the conductive material with a predetermined width is disposed on the upper plate 20 in a direction spaced apart from the adjacent sensing units 201 and 203 by a predetermined distance. The lower plate 21 is basically the same structure as the upper plate 20, but the sensing portions 211.212, 213, and 214 are disposed in a direction different from the one direction, and are disposed to be perpendicular to the one direction. The sensing units disposed on the upper plate 20 and the lower plate 21 are connected to the touch control unit 10 by wires. When the sensing portions of the upper plate 20 and the sensing portions of the lower plate 21 are disposed at right angles to each other, the direction of the sensing portions of the upper plate 20 is X- And the Y-axis, respectively. Thus, each of the sensing units may be arranged in order from one edge of each axis to the other, and may correspond to an X coordinate and a Y coordinate, respectively. When the predetermined coordinate system is constructed as described above, it can be seen that one sensing unit constitutes a channel responsible for specific coordinates for one axis. Hereinafter, "channel" is used in the same sense as each sensing unit. As the conductor contacts a specific location of the touch sensor, the increase in the Cf of the channel closest to the conductor is greatest. Accordingly, the touch control unit 10 can read the coordinate values of the channel having the largest increase in the Cf in the X axis and the channel having the largest increase in the Cf in the Y axis, determine the specific position, and output the touch signal.

Here, it is not necessarily constructed in the form of an upper plate and a lower plate, and the sensing units for one coordinate axis on one side of one plate are arranged in one direction and the other coordinate axes in the direction perpendicular to the one direction And the sensing units may be arranged respectively. In addition, the sensing units need not always have a line shape, and may be formed in various shapes as needed. If the plate and conductor constituting the electrostatic touch sensor can transmit light and form a layer structure with the display unit 151, they can be used as a touch screen as described above. 10, an example of a mobile terminal having a touch screen in which a sensing unit is disposed in a manner different from that of FIG. 9 will be described.

10, a conductor formed in a rhombic shape on a touch screen of the terminal 100 forms respective channels in the form of being connected to the adjacent rhombic conductors in contact with each other. Diamond-shaped conductors constituting longitudinally oriented channels 211, 212 and 213 are formed in another diamond-shaped space formed between the four sides of the diamond-shaped rhombus constituting the channels 201 and 202 oriented in the transverse direction. This arrangement can prevent the interference between the conductors constituting the transverse channels and the longitudinal channels from overlapping with each other. When a touch by a conductor is applied to a specific point 299 of the touch screen having the above arrangement, the increase in the Cf of the vertical channel 212 closest to the horizontal channel 202 closest to the specific point 299 is It will be big. The touch control unit 10 detects the change of the Cf value and determines the coordinate of the touch and transmits the touch signal to the control unit 180 of the terminal 100. [

However, the above-described capacitive touch screens have been used to detect whether a conductor is in direct contact with a terminal, that is, only a contact touch, and a proximity sensor has been used to detect a non-contact touch (proximity touch).

Hereinafter, the first embodiment will be described with reference to a terminal capable of recognizing whether or not the above-described capacitive touch screen is accessible, i.e., a proximity touch, not a direct contact of a conductor, and which can also be used as a proximity sensor.

First Embodiment

A first embodiment of a terminal related to the present invention will be described with reference to Figs. 8 and 11. Fig. According to the first embodiment of the present invention, a terminal capable of recognizing proximity touch using a capacitive touch screen is provided.

First, referring to FIG. 8 again, the principle of recognizing the proximity touch by the capacitive touch sensor will be described.

8, the contact touch includes only the medium 88 between the conductive material 80 and 81 and the hand 85, while the proximity touch includes the air layer 88 between the medium 88 and the hand 85 (Not shown) is more likely to exist. Therefore, the Cf value is inversely proportional to the distance between the conductor and the conductive material and is influenced by the permittivity of the medium. In the case of the proximity touch where the distance between the conductors is long and the distance between the conductor and the air is further increased, the Cf value is smaller than the contact touch. However, if the sensitivity of the touch sensor is increased, it can be sufficiently detected. Here, increasing the sensitivity means that the change of Cf, which is smaller than the Cf recognized by the contact touch, is recognized as the proximity touch. For example, it is assumed that the value of Cf of a certain touch button is set to 0 when there is no touch at all, and set to be recognized as touch only when the touch button has a maximum value of 100 or more. At this time, a value of 20 or more and 49 or less is set to be recognized as proximity touch.

Accordingly, in a capacitive touch screen, if the sensitivity of a specific channel is increased, a conductor approaching the specific channel can be detected. An example of a terminal equipped with such a touch screen will be described with reference to FIG.

Referring to FIG. 11, a capacitive touch screen 151 is provided in the terminal 100. In the figure, only six channels in the horizontal direction are shown for the sake of simplicity of explanation, and the shape thereof is also simply displayed in a straight line of a certain thickness, but the actual configuration can take various forms as described above. Each of the channels is connected to a touch control unit (not shown). The touch control unit senses a change in the Cf value of each channel, determines whether or not to touch it, and transmits the touch signal to the controller 180. In addition, an area 301 in which the topmost channel 201 in the touch screen 151 can sense the touch touched is displayed. Here, when the sensitivity of the channel 201 is amplified, the approach of the conductor can be detected in the predetermined region 401 according to the degree of sensitivity amplification. Accordingly, the position at which the proximity touch can be sensed on the touch screen can be determined depending on which channel is increased in sensitivity.

The terminal 100 may also detect the depth of the proximity touch. As described above, since the value of Cf is inversely proportional to the distance between the conductor and the conductive material, the closer the conductor is to the touch screen, the larger the Cf value, and the smaller the distance, the smaller the Cf value. Accordingly, when the sensitivity of the touch screen is increased, the terminal 100 distinguishes the range of the maximum value and the minimum value of the Cf value, which is set to be recognized as the proximity touch, . For example, assuming that the relative value of Cf recognized by the proximity touch is 20 to 40 when the sensitivity is amplified, the touch control unit selects the first proximity touch of the second proximity depth from 20 to 30, And a proximity touch of proximity depth.

The touch screen capable of recognizing the proximity touch as described above can be implemented in a resistive touch screen in addition to the capacitive touch sensor. This will be described with reference to FIG. 12 is a structural view showing an example of a resistive touch screen.

Referring to FIG. 12, two plates 50 and 51 are connected to a touch control unit 10 through an analog-to-digital converter (ADC) 11. In more detail, the plate 50, which receives at least the touch of the two plates 50 and 51, is preferably an elastic body. In addition, the two plates form a resistance film having a predetermined electrical resistance on the surfaces facing each other, and are connected to the ADC 11 through electrodes 501 and 511 at both ends of the resistance film. The electrodes 501 and 511 are positioned at both ends of each plate at right angles to each other. A predetermined insulating bar (not shown) or a dot spacer (not shown) is provided between the respective resistive films to prevent the resistive films from contacting each other without a touch. In the operating state of the resistive touch screen, if a constant current is applied to both ends of the resistive film through the electrode, the resistive film acts like a resistor having a resistive component, so that a voltage is applied across the resistive film. At this time, when a touch of a predetermined pressure is applied to the upper surface of the plate 50 receiving the touch, deformation due to pressure occurs in the plate 50, and the two resistive films come into contact with each other. Therefore, due to the resistance component of the two surfaces, the resistance value becomes the same as that of the parallel connection of the resistors. At this time, a change in the voltage occurs due to the currents flowing at both ends. The ADC 11 detects the degree of the change of the voltage and delivers the output signal to the touch controller 10. The touch control unit 10 may determine whether or not to touched based on an output signal of the ADC 11 and output a touch signal corresponding thereto.

Unlike the capacitive touch screen described above, the resistance film type touch screen uses a change in voltage according to a change in resistance value in sensing a touch, and does not use a change in the Cf value. However, still using a conductor film, there is a change in Cf as the conductor approaches. Therefore, when the sensitivity is amplified to such a degree that the change of the Cf due to the proximity of the conductor can be detected, a device capable of detecting the change of the Cf value is further provided on the resistance film type touch screen, Can be recognized. Further, the change of Cf according to the proximity depth of the conductor may be divided into at least two steps so that the proximity touch may be recognized in a multistage manner.

A terminal capable of amplifying the sensitivity of a specific channel on the touch screen and recognizing the proximity touch has been described so far. Next, a terminal capable of sensing not only the presence and depth of the proximity touch but also the position of the proximity touch will be described in the second embodiment.

Second Embodiment

Referring to Fig. 13, a second embodiment of a terminal related to the present invention will be described. According to the second embodiment of the present invention, the capacitive touch sensor divides a plurality of channels into at least two groups, and recognizes whether each group has a proximity touch.

In the method of determining the position of the touch, it is very difficult to detect the change of Cf due to the proximity touch on a channel-by-channel basis and to find the exact position. Therefore, the position of the proximity touch can be determined on the touch screen by forming a group with a plurality of channels and determining whether the proximity touch is performed on a group basis. This will be described with reference to a perspective view of the terminal shown in Fig.

Referring to FIG. 13, six transverse channels 201-206 are shown on the capacitive touch screen 151. 11, only six channels in the horizontal direction are shown for simplicity of explanation, and the shape thereof is also simply displayed in a straight line of a certain thickness, but the actual configuration can take various forms as described above. Here, the six channels are categorized into three groups in pairs. Areas 301, 302, and 303 for detecting touch touched and regions 401, 402, and 403 for detecting proximity touch are displayed for each group, respectively. By forming the group as described above, it is possible to determine the position of the proximity touch by the conductor by dividing it into three regions. The sensitivity of the group of the channels 203 and 204 located at the center of the touch screen 151 is not amplified and the proximity touch can be recognized by amplifying only the sensitivity of the group of the upper channels 201 and 202 and the group of the lower channels 205 and 205 There can be an interval between groups. With the above-described method, the position of the proximity touch can be detected more accurately. Therefore, if groups are formed by appropriately combining a channel having increased sensitivity and a channel having less sensitivity as needed, the accuracy of proximity-touched position recognition can be greatly improved. If a predetermined menu or icon that can be selected by receiving the proximity touch is disposed on a position corresponding to the group capable of recognizing the proximity touch on the touch screen, the utilization can be further increased.

For example, when the projector module 155 is provided in the terminal 100, at the time of projecting an image through the projector module 155, a control menu for projected content control is operated by the proximity touch can do. In this case, the operation can be performed without a physical contact to the user input portion, and the projected image is not shaken.

As another example, when the camera 121 is provided in the terminal 100, when a predetermined subject is photographed using the camera, the shutter icon can be operated by the proximity touch by the above-described method. Thus, it is possible to more easily perform the self-photographing operation or to prevent the camera shake caused by physical contact with the terminal for operating the shutter icon.

Next, a terminal capable of conveniently operating a predetermined function by applying the above-described touch screen capable of recognizing the proximity touch will be described in the third embodiment.

Third Embodiment

A third embodiment of a terminal related to the present invention will be described with reference to Fig. According to the third embodiment of the present invention, a terminal capable of operating a predetermined function by recognizing a proximity touch on a touch screen in a specific mode is provided.

14A, a terminal having a capacitive touch screen 151 capable of recognizing a proximity touch as described in the first embodiment activates proximity touch recognition in a standby mode . At this time, a proximity touch by a human hand, that is, a conductor, is applied to the touch screen 151. Here, the proximity touch recognition is activated means that a sensitivity of a part or all of the channels of the touch screen 151 is amplified and a proximity touch can be sensed in the sensitivity amplified channel. The term " standby mode " of the terminal refers to a state in which no additional function by the user's input is performed while the power of the terminal is turned on.

Referring to FIG. 14 (b), when the proximity touch applied in FIG. 14 (a) is detected by the terminal 10, the time and date are displayed on the touch screen 151 as a predetermined function Therefore, the user can conveniently view the time by simply touching the proximity touch without physically manipulating the predetermined user input portion of the terminal. The function of displaying the time and date is illustrative, , A day of the week, a current time, a desktop, a received text message, a preset favorite menu, etc. may be displayed as a predetermined icon. It is possible to prevent the execution of the undesired function due to the failure.

The function described in the present embodiment does not require recognition of the proximity touch to a specific position, so that it can be applied to the above-described resistive film type touch screen.

Next, a terminal that provides other functions that can be operated by applying the above-described touch screen capable of recognizing the proximity touch will be described in the fourth embodiment.

Fourth Embodiment

A fourth embodiment of the terminal related to the present invention will be described with reference to Fig. According to the fourth embodiment of the present invention, the proximity of the face of the user is detected in the call mode, and the display and the activation of the touch input are controlled conveniently.

15A, a terminal 100 having a capacitive touch screen 151 capable of recognizing a proximity touch, which is described in the first embodiment, is connected to a specific channel 1200 ) Is activated in the proximity touch recognition mode. In the call mode, the user brings the acoustic output 152 of the terminal 100 closer to or touches the face to hear the voice. At this time, if the proximity of the user's face is sensed in the specific channel 1200 of the touch screen 151, the touch input may be inactivated to turn off the display LCD or to prevent malfunction due to contact with the face. Conversely, the case of moving the terminal away from the user's face will be described with reference to FIG. 15 (b).

Referring to (b) of FIG. 15, there may occur a case where a note is made during a call, or a touch screen operation such as checking a text message may be required. At this time, as the terminal 100 is moved away from the face, when the upper proximity touch is not detected in the specific channel 1200 of the touch screen 151, the LCD that has shut off the power is turned on again, Can be activated. Accordingly, it is possible to conveniently control the display and the touch input activation without operating a separate proximity sensor or a predetermined key for activating the touch input for sensing the approach of the face. Here, the position of the specific channel 1200 is preferably set close to the audio output unit. Also, it is desirable that the portion receiving the touch input during the communication mode (the menu or icon receiving the touch input) is displayed while avoiding the position of the specific channel 1200. As a finger or a touch pen performing a touch input approaches the specific channel 1200, it may be recognized as a proximity touch and a malfunction may occur in which the touch input is deactivated again.

The functions described with reference to FIG. 15 (a) and the functions described with reference to FIG. 15 (b) can be performed alternately in the communication mode any number of times according to the operation of the user.

Further, according to an embodiment of the present invention, the above-described method can be implemented as a code that can be read by a processor on a medium on which the program is recorded. Examples of the medium that can be read by the processor include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage, etc., and may be implemented in the form of a carrier wave (e.g., transmission over the Internet) .

The above-described terminal having a touch screen can be applied to a case where the configuration and method of the embodiments described above are not limitedly applied, but the embodiments can be modified so that all or some of the embodiments are selectively And may be configured in combination.

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

FIG. 2A is a front perspective view of a portable terminal according to an embodiment of the present invention; FIG.

FIG. 2B is a rear perspective view of a portable terminal according to an embodiment of the present invention; FIG.

3A and 3B are front views of a portable terminal for explaining an operation state of the portable terminal according to the present invention.

4 is a conceptual diagram for explaining the proximity depth of the proximity sensor;

5 is a conceptual diagram for explaining a control method for a touch operation in a form in which a pair of display units are overlapped.

6A and 6B are conceptual diagrams for explaining a proximity touch recognition area where a proximity signal is detected and a haptic area for generating a tactile effect, respectively.

7A and 7B are perspective views of a portable terminal according to an embodiment of the present invention.

8 is a conceptual diagram for explaining the change in capacitance of the touch sensor.

9 is a conceptual view showing an example of a capacitive touch sensor.

10 is a perspective view showing an example of the channel arrangement of the capacitive touch sensor.

11 is a perspective view of a terminal according to the first embodiment of the present invention;

12 is a conceptual view showing an example of a resistive touch sensor.

13 is a perspective view of a terminal according to a second embodiment of the present invention;

FIG. 14 is a conceptual diagram illustrating an operation of a terminal according to a third embodiment of the present invention; FIG.

FIG. 15 is a conceptual diagram illustrating operations of a terminal according to a fourth embodiment of the present invention; FIG.

Claims (13)

Touch screen with touch sensor; And And a controller for amplifying the sensitivity of at least a part of the touch sensor so as to control the touch sensor to output a predetermined proximity touch signal in accordance with a change in capacitance generated when the touch sensor approaches the conductor, The control unit displays on the touch screen a standby screen including an icon representing at least one of a date, a day, a current time, and a preset favorite menu when the proximity touch signal is input from the touch sensor in the standby mode The mobile terminal comprising: delete delete delete delete delete delete The method according to claim 1, A wireless communication unit; MIC; And And an audio output module, Wherein, In the communication mode, when the proximity touch signal for at least a part of the channels amplified in sensitivity is output, the touch input through the touch sensor is blocked during a time period in which the proximity touch signal is input Wherein the mobile terminal is a mobile terminal. 9. The method of claim 8, Wherein, And controls the power of the touch screen to be further cut off during the time when the proximity touch signal is input. delete delete delete delete

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