KR20130008740A - Mobile terminal and method for controlling thereof - Google Patents

Abstract

PURPOSE: A mobile terminal and a control method thereof are provided to allow a user to conveniently use a virtual keypad and to control a standard location of a virtual keypad. CONSTITUTION: A touch screen recognizes touch input. If first touch input is applied on the touch screen a control unit(180) sets up a standard point. The control unit arranges a virtual keypad of a predetermined form around each reference point. The control unit gives predetermined transparency to the virtual keypad. [Reference numerals] (110) Wireless communication unit; (111) Broadcasting reception unit; (112) Mobile communication module; (113) Wireless internet module; (114) Local area communication module; (115) Location information module; (120) A/V input unit; (121) Camera; (122) Microphone; (130) User input unit; (140) Sensing unit; (141) Proximity sensor; (150) Output unit; (151) Display unit; (152) Sound output module; (153) Alarm module; (154) Haptic module; (155) Projector module; (160) Memory; (170) Interface unit; (180) Control unit; (181) Multimedia module; (190) Power supply unit

Description

Mobile terminal and its control method {MOBILE TERMINAL AND METHOD FOR CONTROLLING THEREOF}

The present invention relates to a mobile terminal and a control method thereof capable of providing a more convenient virtual keypad on a touch screen.

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

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

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

In general, the keyboard, which is a peripheral device of a (mobile) terminal, such as a laptop or a computer, has projections on the F key button and the J key button on the basis of the English keyboard. It can be estimated. Thus, the user does not always have to look down at the keyboard. On the other hand, since a virtual keypad widely used as an input means of a mobile terminal having a touch screen is generally displayed on a flat touch screen, the touch is the same because the touch is the same regardless of the position or type of the touched key button. It's hard to see where it is. In addition, when the virtual keypad is displayed on the touch screen, a portion of the previously displayed content is obscured, or a region where the content is newly displayed is narrowed. Accordingly, there is a need for a method for more conveniently using a virtual keypad displayed on a touch screen, and a mobile terminal capable of inputting a key without covering the contents displayed on the touch screen.

The present invention is to provide a mobile terminal that can use a virtual keypad more conveniently.

It is also an object of the present invention to provide a method for allowing a user to recognize a reference position of a virtual keypad and a mobile terminal for performing the same.

In addition, the present invention is to provide a method for more conveniently correcting a typo of an input through a virtual keypad and a mobile terminal for performing the same.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not restrictive of the invention, unless further departing from the spirit and scope of the invention as defined by the appended claims. It will be possible.

Mobile terminal according to an embodiment of the present invention for realizing the above object, the touch screen for recognizing a touch input; And when a first touch input is applied to at least one point on the touch screen, a reference point is set at each point where the first touch input is applied, and a virtual keypad of a preset type is arranged around each reference point. It may include a control unit.

In addition, the control method of the mobile terminal according to an embodiment of the present invention for realizing the above object, the step of inputting a first touch on at least one point on the touch screen; Setting a reference point at each of the points to which the first touch input is applied; And arranging a virtual keypad in a preset form around each reference point.

Through the mobile terminal according to at least one embodiment of the present invention configured as described above, the user can perform input through the virtual keypad more conveniently and accurately.

In addition, the user may check the reference position of the virtual keypad through various visual, auditory and tactile effects.

In addition, the user may partially and conveniently correct a typo generated characters.

The effects obtained by the present invention are not limited to the above-mentioned effects, and other effects not mentioned can be clearly understood by those skilled in the art from the following description will be.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention.
2 is a front perspective view of a mobile terminal according to an embodiment of the present invention.
3 is a front view of a mobile terminal for explaining an operation state of the mobile terminal according to the present invention.
4 is a view for explaining a form in which a general virtual keypad is displayed on a mobile terminal.
5 illustrates an example of a method for setting a reference key in a mobile terminal according to an embodiment of the present invention.
6 illustrates another example of a method for setting a reference key in a mobile terminal according to an embodiment of the present invention.
7A and 7B illustrate another example of a method for setting a reference key in a mobile terminal according to an embodiment of the present invention.
8 illustrates an example of a text input form through a transparent virtual keypad in a mobile terminal according to an embodiment of the present invention.
9 illustrates an example of a form in which an auxiliary input box is displayed in a mobile terminal according to another embodiment of the present invention.
FIG. 10 illustrates an example in which an auxiliary input box is displayed when a transparent keypad and a reference key are set in a mobile terminal according to another embodiment of the present invention.
FIG. 11 illustrates an example in which text is input using a second auxiliary input box in a mobile terminal according to another embodiment of the present invention. FIG.
12 illustrates an example in which an automatic recommendation function is provided in a first auxiliary input box in a mobile terminal according to another embodiment of the present invention.
FIG. 13 illustrates an example in which an automatic recommendation function is provided in a virtual keypad for inputting a second auxiliary input box in a mobile terminal according to another embodiment of the present invention.
14 is a diagram for one example of displaying a visual effect corresponding to a key button selected for preventing a typo in a mobile terminal according to another embodiment of the present invention.
15 illustrates an example of a method for correcting a typo in a mobile terminal according to another embodiment of the present invention.
16 illustrates another example of a method for correcting a typo in a mobile terminal according to another embodiment of the present invention.
17 illustrates another example of a method for correcting a typo in a mobile terminal according to another embodiment of the present invention.

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 includes a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player), a navigation system, . However, it will be readily apparent to those skilled in the art that the configuration according to the embodiments described herein may also be applied to fixed terminals such as digital TVs, desktop computers, etc., except when applicable only to mobile terminals.

Overall configuration

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 a broadcast signal 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, it may exist in the form of Electronic Program Guide (EPG) of Digital Multimedia Broadcasting (DMB) or Electronic Service Guide (ESG) of Digital Video Broadcast-Handheld (DVB-H).

The broadcast receiving module 111 may include, for example, Digital Multimedia Broadcasting-Terrestrial (DMB-T), Digital Multimedia Broadcasting-Satellite (DMB-S), Media Forward Link Only (MediaFLO), and Digital Video Broadcast (DVB-H). Digital broadcast signals can be received using digital broadcasting systems such as Handheld and Integrated Services Digital Broadcast-Terrestrial (ISDB-T). 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. Wireless Internet technologies may include Wireless LAN (Wi-Fi), Wireless Broadband (Wibro), World Interoperability for Microwave Access (Wimax), High Speed Downlink Packet Access (HSDPA), and the like.

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 call 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 pressure / capacitance), 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 may sense whether the slide phone is opened or closed. In addition, whether the power supply unit 190 is supplied with power, whether the interface unit 170 is coupled to the external device may be sensed. 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 includes a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), and a flexible display (flexible). and at least one of a 3D display.

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

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

When the display unit 151 and a sensor for detecting a touch operation (hereinafter, referred to as a touch sensor) form a mutual layer structure (hereinafter referred to as a touch screen), the display unit 151 may be configured in addition to an output device. Can also be used as an input device. The touch sensor may have the form of, for example, a touch film, a touch sheet, a touch pad, or the like.

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

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

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

Examples of the proximity sensor include a transmission photoelectric sensor, a direct reflection photoelectric sensor, a mirror reflection photoelectric sensor, a high frequency oscillation proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, and an infrared proximity sensor. And to detect the proximity of the pointer by the change of the electric field along the proximity of the pointer when the touch screen is electrostatic. In this case, the touch screen (touch sensor) may be classified as a proximity sensor.

Hereinafter, for convenience of explanation, the act of allowing the pointer to be recognized without being in contact with the touch screen so that the pointer is located on the touch screen is referred to as a "proximity touch", and the touch The act of actually touching the pointer on the screen is called "contact touch." The position where the pointer is proximately touched on the touch screen means a position where the pointer is vertically corresponding to the touch screen when the pointer is touched.

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

The sound 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, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, and the like. 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 vibration generated by the haptic 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 provide a pin array that vertically moves with respect to the contact skin surface, a jetting force or suction force of air through an injection or inlet port, grazing to the skin surface, contact of an electrode, electrostatic force, and the like. Various tactile effects can be generated, such as effects by the endothermic and the reproduction of a sense of cold using the elements capable of endotherm or heat generation.

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.

The interface unit may be a passage through which power from the cradle is supplied to the mobile terminal 100 when the mobile terminal 100 is connected to an external cradle, or various command signals input from the cradle by a user may be transferred. It may be a passage that is delivered 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 an external power source and an internal power source under the control of the controller 180 to supply power for operation of each component.

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 include application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), and the like. It may be implemented using at least one of processors, controllers, micro-controllers, microprocessors, and electrical units for performing other functions. The described embodiments may be implemented by the controller 180 itself.

According to the software implementation, embodiments such as the procedures and functions described herein may be implemented as 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. [

Organization description

FIG. 2 is a perspective view of a mobile terminal or a portable terminal according to the present invention, as viewed from the front.

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 injecting synthetic resin or may be formed of a metal material, for example, a metal material such as stainless steel (STS) or titanium (Ti).

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 manipulation units 131 and 132 may also be collectively referred to as manipulating portions, and may be employed in any manner as long as the user operates the tactile manner with a tactile feeling.

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.

Front touch

Hereinafter, the operation of the display unit 151 and the touch pad 135 will be described with reference to FIG. 3.

3 is a front view 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 referred to as a so-called " virtual keypad ".

3 illustrates inputting of a touch applied to the virtual keypad through the front surface of the 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 virtual keypad 151c is displayed in which a number for inputting a telephone number or the like is displayed. When the virtual keypad 151c is touched, numbers and the like corresponding to the touched virtual keypad are 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.

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.

Meanwhile, a graphic in the form of an arrow or a finger for pointing a specific object or selecting a menu on the display unit is called a pointer or a cursor. However, in the case of a pointer, it often means a finger or a stylus pen for a touch operation or the like. Therefore, in the present specification, the graphic image displayed on the display unit is referred to as a cursor to clearly distinguish the two, and a physical means capable of performing touch, proximity touch, and gesture such as a finger or a stylus pen is called a pointer.

The mobile terminal according to the present invention described below includes at least one of the components described above with reference to FIG. 1, but is not necessarily limited thereto, and may include more components than those of FIG. 1 or fewer components. It may also include. However, for convenience, it is assumed that the display unit 151 of the mobile terminal 100 according to the present invention is a touch screen.

4 is a view for explaining a form in which a general virtual keypad is displayed on a mobile terminal.

In the following drawings including FIG. 4, only the image displayed on the touch screen 151 will be omitted, and the main body of the mobile terminal 100 will be omitted for clarity. In addition, in the present specification, a window or box for receiving text or a symbol through the virtual keypad is referred to as an input box, and it is assumed that letters or symbols selected from the virtual keypad are sequentially input to the input box. In addition, it is assumed that the input box is a search field for a search engine web page displayed in a web browser. However, the exemplary embodiment is not limited thereto, and an application or an operating system may be used when letters, numbers, and symbols are input through a virtual keypad. It can be applied to any input box regardless.

Referring to FIG. 4A, a web browser is displayed on the touch screen 151 in a landscape mode. In this case, when the input box 410 for text input in the web browser is selected as a touch input through a pointer, the virtual keypad 420 is displayed at the bottom of the touch screen as shown in FIG. If the web browser is executed in a portrait mode, the virtual keypad 420 may be displayed as shown in FIG. 4C.

By the way, when the virtual keypad is displayed in the form as shown in FIG. 4 (b), it is difficult for a user to set a reference point for recognizing the position of each key button included in the keypad without looking at the virtual keypad. A substantial portion is obscured by the virtual keypad 420. Even in the case of (c) of FIG. 4, the degree of the web browser being covered by the virtual keypad 420 is smaller than that of FIG. 4 (b), but the problem of the reference point is the same. The input box 410 and the virtual keypad are the same. Since the distance of 420 is far, it is not easy for the user to immediately check the input contents.

Setting of transparent keypad and reference key

Accordingly, in one embodiment of the present invention, the position of the key button (hereinafter referred to as a "reference key") as a reference point is determined, and the remaining key buttons are arranged around the reference key, and each key button has a predetermined transparency. Suggest that.

5 illustrates an example of a method for setting a reference key in a mobile terminal according to an embodiment of the present invention.

Referring to FIG. 5, when a web browser is displayed on the touch screen 151, after selecting an input box or using both index fingers at any time, a specific touch input (for example, long-multi) is simultaneously performed. Touch), each touch point may be set as a reference key. Here, the reference key is a key provided with a projection for notification of the reference key in a general QWERTY-type hardware keyboard (that is, the "ㄹ" and "ㅓ" keys in Korean, "F" and "J" keys in English). It is preferred, but not necessarily limited thereto.

When the reference key setting is completed, visual effects 510 and 520 indicating that each reference key is set may be displayed at each touch point. The visual effects 510 and 520 may display letters or functions corresponding to the corresponding key buttons, may remain with a predetermined transparency, or may disappear over time.

Meanwhile, the reference key may be set every time the input box is touched, or if the reference key is set once after booting the mobile terminal or on the same application, the position of the reference key may be maintained until the end. When the position of the reference key is maintained, the above-described visual effects 510 and 520 are displayed every time the input box is selected and displayed until the input is completed or disappear after a predetermined time. In addition, when the above-described visual effect is displayed while the reference key is set, a dimming effect of darkening the peripheral area except for the area where the visual effect is displayed on the touch screen 151 may be provided.

In addition, the reference key may be set in a separate dedicated setting mode for setting the reference key of the application or the operating system (O / S).

In FIG. 5, the description is based on the case in which two reference keys are set. However, according to another aspect of the present embodiment, an auxiliary reference key may be additionally set in addition to the two reference keys. This will be described with reference to FIG.

6 illustrates another example of a method for setting a reference key in a mobile terminal according to an embodiment of the present invention.

In FIG. 6, when both hands are naturally placed on the touch screen 151 for typing, the four keys 610 touched by the left hand and the four points 620 touched by the right hand are set as reference keys. Assume the case. In this case, since the method of setting two reference keys corresponding to the two detections is similar to that of FIG. 5, redundant description will be omitted for simplicity of the specification. When the reference key setting is completed, visual effects 615 and 625 indicating that each reference key is set may be displayed at each touch point. Thereafter, as the little finger is sequentially touched from the middle of both hands, three auxiliary reference keys may be set on each side. Each of the auxiliary reference keys may be given a visual effect similar to the visual effect applied to the reference key.

The visual effects 615 and 625 may follow the characteristics of the visual effects 510 and 520 described with reference to FIG. 5.

When a plurality of auxiliary reference keys are set in the same manner as in FIG. 6, a virtual keypad optimized for a user's hand size or a typing habit may be disposed.

According to another aspect of the present embodiment, an auxiliary grid line may be additionally set in addition to the two reference keys. This will be described with reference to FIGS. 7A and 7B.

7A and 7B illustrate another example of a method for setting a reference key in a mobile terminal according to an embodiment of the present invention.

7A and 7B, illustrations of an input box displayed before a reference key setting procedure on a touch screen or an execution screen of an application including the same will be omitted.

In FIG. 7A, two reference keys may be set through the method described above with reference to FIG. 5. When two reference keys are set, predetermined visual effects 710 and 720 representing the reference key may be displayed at each of the corresponding positions. In this case, a guideline indicating an interval at which the remaining virtual key buttons are arranged to the left and right and up and down of each reference key may be displayed. Among these, between the right guideline 730 of the left reference key and the left guideline 740 of the right reference key, an area where two key buttons are to be arranged between the two reference keys through a predetermined visual effect 750 may be displayed. Can be. Here, when the reference keys are the "F" and "J" keys based on the QWERTY keypad, the two key buttons between them become the "G" and "H" buttons. If the gap D1 between the two guide lines 730 and 740 is too narrow and there is insufficient space for the "G" and "H" buttons to be disposed, vibration or a warning sound may be generated. In this case, as shown in FIG. 7B, the visual effect 720 representing the right reference key may be dragged to the right to adjust the distance between the two reference keys. As a result, the spacing and position of the guideline may also be changed. The guideline may be given a predetermined transparency.

Meanwhile, in the visual effect 750 displayed between the right guideline 730 of the left reference key and the left guideline 740 of the right reference key, the interval between the two guidelines 730 and 740 is less than a predetermined value. It may be displayed only in a narrow case, and may disappear when the interval is greater than or equal to a predetermined value as shown in FIG. 7B. That is, the visual effect 750 may be displayed only when there is not enough space for two key buttons to be arranged between the two key-junction keys.

The guideline is displayed every time the input box is selected with the visual effect assigned to the reference key and displayed until the input is completed, or disappears immediately after the input box input has started and a certain time has elapsed, or after setting the reference key. Can be.

If a guideline is displayed continuously until the input box input is complete, whenever the touch input is detected as a guideline (i.e. the position of the touch input is incorrect), the color or transparency assigned to it may change. have. If the guideline is not displayed after the reference key is set, the touch input may be displayed for a predetermined time whenever a touch input is detected on the guideline. In addition, when a touch input is detected on the guideline, a vibration effect or a warning sound may be output together.

The position of each key button can be notified to the user while covering the touch screen at least by displaying the guideline described with reference to FIGS. 7A and 7B. If the touch position is inaccurate, the user can be recognized in various ways. .

After the reference key is set through the above-described methods with reference to FIGS. 5 to 7B, a virtual keypad (for example, a QWERTY method keypad) of a predetermined method is used as a key button according to the interval between the reference keys, with the reference key as the center. The gap between them can be adjusted to be transparent. Of course, each virtual key button constituting the virtual keypad may be displayed semi-transparently rather than completely transparent on the touch screen 151.

Meanwhile, when the reference key is set and the touch input is located at the position of the reference key among the inputs through the virtual keypad in the input box, the above-described visual effect may appear or a predetermined sound may be output through the sound output unit 152. Some vibration effects may be generated through the haptic module 154. If vibration occurs even when a key button other than the reference key is touched, it is preferable that the vibration patterns (size, length, period, etc.) of the reference key and the remaining key buttons are set differently. Through this, the user can check the position of the reference key during input through the virtual keypad.

When the reference key is set according to the size of the user's hand or the typing habit through the methods described above with reference to FIGS. 5 to 7B, the virtual key buttons are arranged at intervals, thereby allowing more convenient input. In addition, as the virtual keypad is displayed transparently, the virtual keypad does not cover the content displayed on the touch screen. In addition, since a predetermined output occurs whenever the reference key is touched, the user can check the position of the reference key at any time.

Hereinafter, with reference to FIG. 8, a specific form in which text is input to an input box through a transparent keypad while a reference key is set will be described.

8 illustrates an example of a text input form through a transparent virtual keypad in a mobile terminal according to an embodiment of the present invention.

In FIG. 8, the QWERTY-type keypad is transparently disposed on the touch screen, and reference keys are set to "F" and "J" keys, respectively, and the position of each reference key is displayed through circular icons 810 and 820. Assume the case.

Referring to FIG. 8, as the user selects the input box 830 on the touch screen, circular icons 810 and 820 indicating the position of each reference key are displayed at the corresponding position. At this time, when the user touches the circular icon 820 corresponding to the right reference key, "J" is input to the input box.

As another example, virtual key buttons corresponding to the letters "G" and "H" are disposed from the left to the right in the space between the position of the left reference key 810 and the position of the right reference key 820. Accordingly, when the left region is touched among the regions in which the space between the left reference key and the right reference key is divided left and right, the letter “G” is input to the input box 830.

Secondary input box

Another embodiment of the present invention proposes to use an auxiliary input box for more convenient virtual key button input. Here, the auxiliary input box means a separate input box that is generated such that text input to an input box selected for text input (hereinafter, referred to as a primary input box for convenience) is displayed in a different form. Herein, the display in a different form means that the text itself has different forms such as the type and size of the font and / or the arrangement state of the text such as line spacing, longevity, and kerning.

In order to alleviate the inconvenience of a relatively large distance between the primary input box and the virtual keypad, the auxiliary input box is preferably displayed adjacent to the area where the virtual keypad is displayed on the touch screen. This will be described with reference to FIG.

9 illustrates an example of a form in which an auxiliary input box is displayed in a mobile terminal according to another embodiment of the present invention.

Referring to FIG. 9A, when the web browser is displayed in the portrait view mode on the touch screen 151, a virtual keypad is displayed at the bottom of the touch screen 151 as the user selects the main input box 910. Can be.

In this case, as the user touches the key button of the virtual keypad, the auxiliary input box 930 is displayed directly on the virtual keypad as shown in FIG. 9B, and the letter corresponding to the touched key button is the main input box 910. And the auxiliary input box 930 are displayed together.

In this case, the character corresponding to the touched key button may be displayed in the auxiliary input box in a font larger than the character displayed in the main input box. However, as an example, as described above, in addition to the font size, the mutual arrangement state of characters such as font type, letter spacing, long horizontal spacing, and spacing may also be changed.

Meanwhile, although FIG. 9 has been described with reference to a general virtual keypad, it may be applied to a transparent keypad according to an embodiment of the present invention described above. This will be described with reference to FIG.

FIG. 10 illustrates an example in which an auxiliary input box is displayed when a transparent keypad and a reference key are set in a mobile terminal according to another embodiment of the present invention.

In FIG. 10, it is assumed that the QWERTY keypad is transparently disposed on the touch screen through the methods described with reference to FIGS. 5 to 7B, and the reference keys are set to "F" and "J" keys, respectively. In addition, it is assumed that the position of each reference key is displayed through the circular icons 1010 and 1020 while the main input box is selected.

Referring to FIG. 10, as the user selects the primary input box 1030 on the touch screen, circular icons 1010 and 1020 indicating the position of each reference key and an auxiliary input box 1040 are displayed on the upper side thereof. In this case, when the user touches the circular icon 1020 corresponding to the right reference key, "J" is input to the primary input box 1030 and the auxiliary input box 1040. In FIG. 10, the font size enlargement is illustrated as an example of the effect applied to the auxiliary input box.

In FIG. 9B and FIG. 10, it is described that a character corresponding to a key button is simultaneously displayed on the primary input box and the auxiliary input box. However, when more than a certain amount of text is input or spaced / line-wrapped in the auxiliary input box, the text of the auxiliary input box is moved to the primary input box, and the auxiliary input box may be initialized.

As described above with reference to FIG. 10, the auxiliary input box according to the present invention can be applied not only to a general virtual keypad environment but also to a transparent keypad accompanying the above-described reference key setting. Therefore, although the mobile terminal providing the auxiliary input box according to the present embodiment and its control method are described with reference to a general virtual keypad in the following drawings including FIG. .

According to another aspect of the present embodiment, the second auxiliary input box may be additionally displayed in the input box input using the virtual keypad. The second auxiliary input box preferably provides a larger font size even if the second auxiliary input box displays shorter content than the first auxiliary input box so that a user can more accurately recognize contents to be input to the first auxiliary input box. This will be described with reference to FIG. 11.

In the following drawings including FIG. 11, the above-described auxiliary input box is referred to as a first auxiliary input box in order to distinguish the above-described auxiliary input box from the second auxiliary input box.

FIG. 11 illustrates an example in which text is input using a second auxiliary input box in a mobile terminal according to another embodiment of the present invention. FIG.

Referring to FIG. 11A, when the primary input box 1110 displayed on the touch screen is selected, the virtual keypad 1120, the first auxiliary input box 1130, and the second auxiliary input box 1140 are selected. Is displayed. In this case, a dimming effect may be applied to the remaining areas except for the virtual keypad 1120, the first auxiliary input box 1130, and the second auxiliary input box 1140.

The input through the keypad is first displayed on the second auxiliary input box 1140. After that, when the space bar key button 1121 is selected, the content displayed on the second auxiliary input box 1140 as shown in FIG. Moves to the first auxiliary input box 1130 and the second auxiliary input box 1140 is initialized. Even if the space bar key button 1121 is not selected, the contents displayed in the second auxiliary input box 1140 are moved to the first auxiliary input box 1130 even when the input content exceeds a predetermined length. 1140 may be initialized.

Subsequently, when content input is completed on the first auxiliary input box 1130, the user may select a key button indicating completion of input on the virtual keypad 1120. Accordingly, content input to the first auxiliary input box 1130 may be input to the primary input box.

Meanwhile, a function for automatically recommending the remaining input contents according to contents input to the second auxiliary input window may be provided in the first auxiliary input box. This will be described with reference to FIG. 12.

12 illustrates an example in which an automatic recommendation function is provided in a first auxiliary input box in a mobile terminal according to another embodiment of the present invention.

First, referring to FIG. 12A, as the main input box 1210 displayed on the touch screen is selected, the virtual keypad 1220, the first auxiliary input box 1230, and the second auxiliary input box 1240 are selected. Is displayed. In this case, when the user inputs text through the virtual keypad 1220 to "eat apple", first, "apple" is displayed in the second auxiliary input box, and then "apple" is used as a second assistant. It is moved from the input box to the first input box. "Eat" is then displayed in the second Auxiliary input box. At this time, the controller 180 searches for text that may come after "eaten", and displays the results 1250 on the first auxiliary input box 1230 on a predetermined basis as shown in FIG. can do. The user may select any of the results 1250 displayed on the first auxiliary input box 1230 through a touch input.

Herein, the controller 180 can use the wireless communication unit 110 or the memory 160 to search for text for automatic recommendation. When the wireless communication unit 110 is used, the controller 180 may use a search word autocomplete function provided in a search word input window of a web page providing a search function such as a portal site. In detail, when the text displayed in the first or second auxiliary input box is input, the controller 180 may use texts provided through the search word autocomplete function at the bottom of the search word input window as text for automatic recommendation. When the memory 160 is used, the search word database DB for automatic recommendation may be provided in advance.

Meanwhile, a character to be input to the second auxiliary input box may be automatically recommended through the virtual keypad. That is, whenever there is an input through the virtual keypad, or when there is no next input for a predetermined time since the last input, the controller 180 may present the second auxiliary input box to the present time through the search method described above with reference to FIG. 12. The key button to be recommended is decided based on the information entered in. Thereafter, the controller 180 may display a predetermined visual effect at a position corresponding to the recommended key button determined on the virtual keypad. This will be described with reference to FIG.

FIG. 13 illustrates an example in which an automatic recommendation function is provided in a virtual keypad for inputting a second auxiliary input box in a mobile terminal according to another embodiment of the present invention.

Referring to FIG. 13A, the controller 180 determines a recommendation key button by using “apple” inputted to the second auxiliary input box 1340 as a search word. For example, when the closest search word for “apple” is “apple”, “” may be determined as the recommended key button. Accordingly, the highlight effect may be displayed on the “d” key button 1321 of the virtual keypad 1320.

In the same home as in FIG. 13A, when only the virtual keypad is changed to the above-described transparent keypad in one embodiment of the present invention, as shown in FIG. The highlight effect can be displayed.

Prevent and correct typos

In another embodiment of the present invention, various methods are provided for lowering the error rate and conveniently correcting the error if a mistake occurs.

14 is a diagram for one example of displaying a visual effect corresponding to a key button selected for preventing a typo in a mobile terminal according to another embodiment of the present invention.

FIG. 14A illustrates a case in which the recommendation key button is touched in each of FIGS. 13A and 14B.

First, in FIG. 14A, when the recommended key button 1421 is touched, a visual effect 1450 in which a character corresponding to the touched key button is enlarged in the center of the touch screen 151 may be temporarily displayed 1450. have. As the visual effect 1450 disappears, the corresponding character is added to the second auxiliary input box 1440.

Instead of displaying the letter corresponding to the selected key button enlarged, as shown in FIG. 14B, the visual effect 1450 may be moved to the second auxiliary input box as the visual effect 1450 is gradually increased at the position of the corresponding key button.

Through this visual effect, the user can immediately check a character corresponding to the key button touched by the user. However, although FIG. 14 has been described on the assumption that it is a subsequent process of FIG. 13, the above-described visual effect may be displayed independently regardless of the automatic recommendation function (that is, even when the automatic recommendation function is not applied).

Next, a typo correcting method according to the present embodiment will be described. In general, if you type a typo in some of the characters you have already completed, you must delete the entire character and retype it. In this embodiment, in order to solve this problem, methods for selectively deleting a part of the completed text are provided.

15 illustrates an example of a method for correcting a typo in a mobile terminal according to another embodiment of the present invention.

In the following drawings including FIG. 15, only the second auxiliary input box and the content displayed thereon will be illustrated for clarity.

In FIG. 15, it is assumed that a user attempts to input the text "apple", but a typo occurs and "apple" is input.

Referring to FIG. 15A, when “sawa” is displayed on the second auxiliary input box 1510, the user may select one area of the second auxiliary input box 1510, for example, to correct a typo. You can touch between the "and" characters and the "and" characters.

Accordingly, as shown in FIG. 15B, the cursor 1520 is displayed between the characters "and" and "". Along with the cursor 1520, a polygon (or circle) surrounding each character is displayed, and the polygon is divided according to each of the initial / neutral / final constituting the character. In this case, since only "o" of "wa" needs to be replaced with "a", only "o" is deleted when the area 1530 corresponding to "o" of the divided areas of the polygons surrounding "wa" letters is touched. Can be. In order to facilitate the touch, an area corresponding to a portion in which the area occupied by the letter is narrow in the vertical direction, such as "-" which is the neutral of "," may be displayed by being enlarged by a predetermined ratio in the vertical direction.

After that, when the consonant suitable for consonants (here “a”) is selected on the keypad, the divided polygons disappear. If the neutral is deleted, the divided rectangle around each letter may disappear when the vowel is selected on the keypad.

Of course, if the user wants to delete the entire "and" characters, the user can select the backspace key button on the virtual keypad as in the general procedure.

Instead of the initial / neutral / final segmentation described above, an eraser icon may be used. This will be described with reference to FIG.

16 illustrates another example of a method for correcting a typo in a mobile terminal according to another embodiment of the present invention.

In FIG. 16, it is assumed that a user attempts to input the text “apple”, but a typo occurs and “wa” 1620 is entered instead of “wa”.

Referring to FIG. 16A, an eraser box 1615 is displayed adjacent to the second auxiliary input box 1610. The second auxiliary input box 1610 displays “sawa”, which is text input from the user, and an eraser icon 1630 is displayed on the eraser box 1615. In this case, the user selects the eraser icon 1630 as shown in FIG. 16B to correct a typo, and then applies a touch input to a region to be corrected (ie, initial "o") in the letter 1620 in which the typo occurs. An eraser icon 1630 appears at the location, and the corresponding eraser icon 1630 may be dragged to delete the corresponding portion. When the user finishes deleting and touches the eraser box 1615 again, the eraser icon 1630 may be displayed in the eraser box 1615 again.

On the other hand, the wrongly entered key button is most likely to be adjacent to the key button intended by the user. Therefore, the present embodiment proposes a method of directly selecting key buttons around the deleted super / medium / final to correct a typo.

17 illustrates another example of a method for correcting a typo in a mobile terminal according to another embodiment of the present invention.

FIG. 17 illustrates that the user attempts to input the text "apple", but after a typo occurs, "wa" is entered instead of "wa", and the error is deleted using the methods shown in FIGS. 15 and 16. Assume In addition, it is assumed that the key button layout of the virtual keypad follows the Hangul keyboard layout in the general QWERTY keypad.

 Referring to FIG. 17A, the recommended first consonants 1730 are popped up around the letter 1720 in which the first constellation “o” is deleted in the second auxiliary input box 1710. In this case, the recommended initial consonants 1730 may be key buttons disposed around a key button corresponding to "o" in the virtual keypad. If the user selects "a" 1731, which is the intended first consonant among the recommended recommendation firsts 1730 as a touch input, a typo may be corrected to the selected first constellation as shown in FIG. 17 (b).

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 mobile terminal and its control method are not limited to the configuration and method of the above-described embodiments, but the embodiments may be modified such that all or some of the embodiments are selectively And may be configured in combination.

Claims (15)

A touch screen that recognizes a touch input; And
When a first touch input is applied to at least one point on the touch screen, a reference point is set at each point where the first touch input is applied, and a control is made to arrange a virtual keypad of a preset type around each reference point. A mobile terminal comprising a control unit. The method of claim 1,
The control unit,
And a predetermined transparency is given to the virtual keypad. The method of claim 1,
The control unit,
And a first visual effect is displayed on each of the reference points. The method of claim 3,
The control unit,
And the first visual effect is displayed only while the first input box on which the first visual effect is displayed on the touch screen is selected. The method of claim 1,
It further includes a haptic module that provides a vibration effect,
The control unit,
And a first vibration effect generated through the haptic module whenever a key button corresponding to each reference point is selected through the second touch input in the virtual keypad. 6. The method of claim 5,
The control unit,
The second vibration effect is generated through the haptic module whenever a key button other than the key buttons corresponding to the respective reference points is selected through the second touch input in the virtual keypad.
And the first vibration effect and the second vibration effect are different. The method of claim 1,
Further comprising a sound output unit for outputting a sound effect,
The control unit,
And a first sound effect generated through the sound output unit whenever a key button corresponding to each reference point is selected through the second touch input in the virtual keypad. 8. The method of claim 7,
The control unit,
When the key buttons other than the key buttons corresponding to the respective reference points are selected in the virtual keypad through the second touch input, the second sound effect through the sound output unit may be generated.
And the first sound effect and the second sound effect are different. The method of claim 1,
The control unit,
And when the first input box displayed on the touch screen is selected, controlling to display the second input box adjacent to the virtual keypad. The method of claim 9,
The control unit,
And a content input through the virtual keypad is simultaneously displayed on the first input box and the second input box. The method of claim 9,
The control unit,
The input content through the virtual keypad is first displayed on the second input box, and when the content displayed on the second input box exceeds a predetermined length or when a specific key button on the virtual keypad is selected, the second input box is inputted. And a content displayed on the box is displayed on the first input box. 12. The method of claim 11,
The control unit,
When the content displayed on the second input box is displayed on the first input box, the mobile terminal, characterized in that for initializing the second input box. The method of claim 9,
The control unit,
A mobile terminal characterized in that the input content displayed on the first input box and the input content displayed on the second input box are displayed differently from at least one of font size, font type, letter spacing, spacing, and spacing. . The method of claim 9,
Further comprising a wireless communication unit for transmitting and receiving data wirelessly with an external search server,
The control unit,
Search for the recommended word through the external search server using the input content displayed on the second input box as a search word, and a key button corresponding to the character to be input after the input content on the virtual keypad to complete the recommended word. And display the second visual effect at a position corresponding to the mobile terminal. Inputting a first touch on at least one point on the touch screen;
Setting a reference point at each of at least one point where the first touch is input; And
And a virtual keypad having a preset shape centering on each of the reference points.

Images