KR20100020851A - Portable terminal and method for displaying keypad thereof - Google Patents

Abstract

PURPOSE: A portable terminal capable of reducing errors and method for displaying keypad thereof is provided to minimize a wrong input by selectively enlarging a keypad inputted in a touch type. CONSTITUTION: A terminal body(101) has a display unit. A keypad(400) is displayed on the task domain of the display unit. The keypad has a plurality of keys inputted with touch type. The keypad is formed capable to limitting to one of a plurality of sub groups(410,420) consisting of some parts among the all keys. A selected subgroup among the subgroups is displayed on the display unit.

Description

PORTABLE TERMINAL AND METHOD FOR DISPLAYING KEYPAD THEREOF}

The present invention relates to a portable terminal having a keypad input by a touch method.

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

As the functions are diversified, the mobile terminal has complicated functions such as taking a picture or a video, playing a music or a video file, playing a game, receiving a broadcast, and the like. It also implements.

Many new attempts are being applied to these multimedia devices in terms of hardware or software to implement complex functions. For example, a user interface environment is provided for a user to search for or select a function easily and conveniently.

The conventional push-type keypad has an excellent advantage in terms of use, but it does not only reduce aesthetics because it makes a complicated appearance, but also has a problem that it is difficult to engrave input contents that may vary depending on modes.

In the case of a portable terminal having a touch type input device, an advantage of improving the appearance can be expected. However, as the size of the portable terminal decreases, the size of the keys also decreases, which increases the possibility of an error in input of an unwanted key.

The present invention has been made in view of the above, and an object thereof is to minimize an incorrect input by allowing a keypad input by a touch method to be enlarged according to a selection.

Another object of the present invention is to provide a convenient user interface environment by selecting a portion of the keypad to be enlarged with a simple operation.

A portable terminal according to an embodiment of the present invention for realizing the above problems includes a terminal body having a display unit; And a keypad displayed on one area of the display unit and including a plurality of keys input by a touch method. The keypad may be limited to one of a plurality of subgroups consisting of only some of the keys, and the selected subgroup of the subgroups may be enlarged and displayed on the display unit.

As an example related to the present invention, the portable terminal may be provided with a detector configured to detect whether a specific subgroup is selected among the subgroups.

As an example related to the present invention, the sensing unit may include an inclination detection sensor that detects an inclination such that a subgroup on the inclined side is selected according to the inclination of the terminal body. In this case, the keypad may be configured to be selected in different subgroups according to the tilt angle of the terminal body. If tilting in the opposite direction to tilting occurs, the entire keys of the keypad may be configured to be displayed.

As an example related to the present disclosure, the sensing unit may include a proximity sensor that detects the proximity of a finger so that when a finger approaches a specific position on the keypad, a subgroup including the position is selected. In this case, when a finger approaches a specific position, a subgroup may be formed around the key at that position. When the finger is away from the display unit by a reference value or more in a state where the finger is approached, the keypad may be configured to display all keys.

As an example related to the present disclosure, the sensing unit may include a touch sensor that senses the direction of the continuous touch so that a subgroup in the direction of the touch is selected when the continuous touch occurs on the keypad. If any continuous touch to the keypad occurs while the subgroup is selected and enlarged, the keypad may be configured to display all keys.

As an example related to the present invention, the subgroup may be configured to be enlarged and displayed in the size of the keypad.

As an example related to the present invention, the keys of the keypad may be a QWERTY keyboard.

The present invention also includes the steps of displaying a keypad consisting of a plurality of keys that can be touch-input on one area of the display unit; Detecting whether there has been a selection for one subgroup of the plurality of subgroups consisting of only some of the keys; And enlarging and displaying a selected subgroup of the subgroups on the display unit.

In the portable terminal according to the present invention configured as described above, when the keypad is displayed on the display unit, a subgroup with a key to be input is enlarged and displayed, thereby significantly reducing an error such as an unwanted key input. have.

According to the mobile terminal of the present invention, the above subgroups can be selected and used by a simple operation of the user, thereby providing convenience in terms of a user interface.

Hereinafter, a portable terminal according to the present invention will be described in detail with reference to the drawings. The suffixes "module" and "unit" for components used in the following description are merely given in consideration of ease of preparation of the present specification, and do not impart any particular meaning or role by themselves. Therefore, it should be noted that "module" and "unit" may be used interchangeably.

The portable terminal can be implemented in various forms. For example, a terminal described herein includes a mobile terminal such as a mobile phone, a smart phone, a notebook computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), a navigation device, and the like. And fixed terminals such as digital TVs, desktop computers, and the like. In the following description, it is assumed that the terminal is a portable terminal. However, it will be readily apparent to those skilled in the art that the configuration according to the description below may also be applied to fixed terminals, except for components specifically configured for this purpose.

1 is a block diagram of a portable terminal related to the present invention.

The mobile terminal 100 may include a wireless communication unit 110, an A / V input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory unit 160, and an interface. The unit 170, the controller 180, and the power supply unit 190 may be included. 1 illustrates a mobile terminal having various components. However, not all illustrated components are essential components. The mobile terminal may be implemented by more components than the illustrated components, or the mobile terminal may be implemented by fewer components.

The following describes the components in order.

The wireless communication unit 110 may include one or more components for wireless communication between the mobile terminal 100 and another wireless communication system or wireless communication between the mobile terminal 100 and a 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, a location information module 115, and the like. .

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 mean a server that generates and transmits a broadcast signal and / or broadcast related information or a server that receives a pre-generated broadcast signal and / or broadcast related information and transmits the same to a terminal. The broadcast related information may mean information related to a broadcast channel, a broadcast program, or a broadcast service provider. The broadcast signal may include not only a TV broadcast signal, a radio broadcast signal, and a data broadcast signal, but also a broadcast signal having a data broadcast signal combined with a TV broadcast signal or a radio broadcast signal.

Meanwhile, broadcast related information may be provided through a mobile communication network, and in this case, 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 receives broadcast signals using various broadcast systems, and in particular, digital multimedia broadcasting-terrestrial (DMB-T), digital multimedia broadcasting-satellite (DMB-S), and media forward link only (MediaFLO). ), Digital broadcast signals may be received using digital broadcasting systems such as DVB-H (Digital Video Broadcast-Handheld) and ISDB-T (Integrated Services Digital Broadcast-Terrestrial). Of course, the broadcast receiving module 111 is configured to be suitable for all broadcast systems providing broadcast signals as well as the digital broadcast system described above.

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

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

The wireless internet module 113 refers to a module for wireless internet access, and the wireless internet module 113 may be internal or external. 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. As a short range communication technology, Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, and the like may be used.

In addition, the location information module 115 is a module for checking or obtaining the location of the mobile terminal. A representative example of the location information module is a GPS (Global Position System) module. According to the current technology, the GPS module 115 calculates distance information and accurate time information from three or more satellites, and then applies triangulation to the calculated information, so that three-dimensional current position information according to latitude, longitude, and altitude is obtained. Can be calculated accurately. Currently, a method of calculating position and time information using three satellites and correcting an error of position and time information calculated using another satellite is widely used. In addition, the GPS module 115 may calculate speed information by continuously calculating the current position in real time.

Meanwhile, the A / V 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 may 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 according to the configuration aspect of the terminal.

The microphone 122 receives an external sound signal by a microphone in a call mode, a recording mode, a voice recognition mode, etc., and processes the external sound signal into electrical voice data. The processed voice data may be converted into a form transmittable to the mobile communication base station through the mobile communication module 112 and output in the call mode. The microphone 122 may implement various noise removing algorithms for removing noise generated in the process of receiving an external sound signal.

The user input unit 130 generates input data for the 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. In particular, when the touch pad forms a mutual layer structure with the display unit 151 described later, this may be referred to as a touch screen.

The sensing unit 140 detects a current state of the mobile terminal 100 such as an open / closed state of the mobile terminal 100, a position of the mobile terminal 100, presence or absence of a user contact, orientation of the mobile terminal, acceleration / deceleration of the mobile terminal, and the like. To generate a sensing signal for controlling the operation of the portable terminal 100. For example, when the portable terminal 100 is in the form of a slide phone, whether the slide phone is opened or closed may be sensed. In addition, it is responsible for sensing functions related to whether the power supply unit 190 is supplied with power or whether the interface unit 170 is coupled to an external device. The sensing unit 140 may include a proximity sensor 141. This will be described later with reference to the touch screen.

The interface unit 170 serves as an interface with all external devices connected to the mobile terminal 100. For example, wired / wireless headset ports, external charger ports, wired / wireless data ports, memory card ports, ports for connecting devices with identification modules, audio input / output (I / O) ports, Video I / O (Input / Output) port, earphone port, etc. may be included. Here, the identification module is a chip that stores various types of information for authenticating the usage right of the mobile terminal 100, and includes a user identification module (UIM) and a subscriber identify module (SIM). ), A Universal Subscriber Identity Module (“USIM”), and the like. In addition, the device equipped with the identification module (hereinafter, 'identification device') may be manufactured in the form of a smart card. Therefore, the identification device may be connected to the terminal 100 through a port. The interface unit 170 may receive data from an external device or receive power and transfer the data to each component within the mobile terminal 100 or transmit the data inside the mobile terminal 100 to an external device.

In addition, the interface unit 170 is 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. It may be a passage that is delivered to the mobile terminal. Various command signals or power input from the cradle may be operated as signals for recognizing that the mobile terminal is correctly mounted on the cradle.

The output unit 150 is for outputting an audio signal, a video signal, or an alarm signal. The output unit 150 may include a display unit 151, an audio output module 152, and an alarm output module 153. have.

The display unit 151 displays and outputs information processed by the mobile terminal 100. For example, when the mobile terminal is in a call mode, a user interface (UI) or a graphic user interface (GUI) associated with a call is displayed, and the mobile terminal 100 displays a video call mode or a photographing mode. If is displayed, and / or the received image or UI, GUI.

Meanwhile, as described above, when the display unit 151 and the touch pad form a mutual layer structure to form a touch screen, the display module 151 may be used as an input device in addition to the output device. The display unit 151 may be a liquid crystal display, a thin film transistor-liquid crystal display, an organic light-emitting diode, a flexible display, or a three-dimensional display. 3D display). Some of these displays can be configured to be transparent so that they can be seen from the outside. This may be referred to as a transparent display. A representative example of the transparent display includes a transparent LCD. In addition, two or more display units 151 may exist according to the implementation form of the mobile terminal 100. The touch screen may be configured to detect a touch input pressure as well as a touch input position and area.

Meanwhile, the proximity sensor 141 may be disposed inside or near 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 an object present in the vicinity without using a mechanical contact by using an electromagnetic force or infrared rays. Thus, proximity sensors have a considerably longer life than contact sensors and their utilization is also quite 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.

In the high frequency oscillation type proximity sensor, when the sensing object approaches the sensor sensing surface in the state of oscillating high frequency wave of oscillation circuit, the oscillation amplitude of the oscillation circuit is reduced or stopped, and this change is converted into an electrical signal. The presence or absence of a will be detected. Therefore, even if a non-metallic material comes between the high frequency oscillation proximity sensor and the sensing object, the proximity switch can detect the sensing object to be detected without interference of the object.

Even if the proximity sensor is not mounted, the touch screen may be configured to detect proximity of the pointer by a change in electric field according to proximity of the pointer when the touch screen is capacitive.

Therefore, when the pointer is not in contact but is in close proximity on the touch screen, the position of the pointer and the distance between the pointer and the touch screen may be detected. Hereinafter, for convenience of explanation, the act of allowing the pointer to be located close to the touch screen to recognize that the pointer is located on the touch screen is referred to as a "proximity touch", and the act of actually touching the pointer on the touch screen. Will be referred to as "contact touch". In addition, the position of the proximity touch with the pointer on the touch screen refers to a position where the pointer is perpendicular to the touch screen when the pointer is in close proximity touch.

The proximity sensor detects proximity touch and proximity touch patterns (eg, proximity touch distance, proximity touch direction, proximity touch speed, proximity touch time, proximity touch position, proximity touch movement state, etc.) Information corresponding to the touch operation and the proximity touch pattern may be output on the touch screen.

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

The alarm unit 153 outputs a signal for notifying occurrence of an event of the portable terminal 100. Examples of events occurring in the mobile terminal include call signal reception, message reception, key signal input, and touch input. The alarm unit 153 may output a signal for notifying occurrence of an event in a form other than an audio signal or a video signal. For example, the signal may be output in the form of vibration. When a call signal is received or a message is received, the alarm unit 153 may output a vibration to inform this. Alternatively, when a key signal is input, the alarm unit 153 may output a vibration in response to the key signal input. Through the vibration output as described above, the user can recognize the occurrence of the event. Of course, the signal for event occurrence notification may be output through the display unit 151 or the voice output module 152.

The memory unit 160 may store a program for processing and controlling the controller 180 and may temporarily store input / output data (for example, a phone book, a message, a still image, a video, etc.). You can also do In addition, the memory unit 160 may store data regarding vibration and sound of various patterns output when a touch input on the touch screen is performed.

The memory unit 160 may include a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory), Random Access Memory (RAM) Static Random Access Memory (SRAM), Read-Only Memory (ROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Programmable Read-Only Memory (PROM) magnetic memory, Magnetic disk It may include at least one type of storage medium of the optical disk. In addition, the mobile terminal 100 may operate a web storage that performs a storage function of the memory unit 160 on the Internet.

The controller 180 typically controls the overall operation of the mobile terminal. For example, perform related control and processing for voice calls, data communications, video calls, and the like. In addition, the controller 180 may include a multimedia module 181 for playing multimedia. The multimedia module 181 may be implemented in the controller 180 or may be implemented separately from the controller 180.

The controller 180 may perform a pattern recognition process for recognizing a writing input or a drawing input performed on a touch screen as text and an image, 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.

Various embodiments described herein may be implemented 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 the functions. Examples may be implemented by the controller 180. According to the software implementation, embodiments such as a procedure or a function may be implemented with a separate software module to perform at least one function or operation. May be implemented by a software application written in a suitable programming language. It is stored in the memory 160, and executed by a controller 180.

Hereinafter, referring to FIG. 2, a communication system capable of operating a terminal according to the present invention will be described.

The communication system may use different air interfaces and / or physical layers. For example, a radio interface usable by a communication system may include frequency division multiple access (FDMA), time division multiple access (TDMA), and code division multiple access (Code Division). Multiple Access (CDMA), Universal Mobile Telecommunications Systems (UMTS) (especially Long Term Evolution (LTE)), Global System for Mobile Communications (GSM), etc. May be included. Hereinafter, for convenience of description, the description will be limited to CDMA. However, it is a matter of course that the present invention is applicable to all communication systems including the CDMA wireless communication system.

As shown in FIG. 2, the CDMA wireless communication system includes a plurality of terminals 100, a plurality of base stations (BS) 270, and a base station controllers (BSCs) 275. ), And a mobile switching center (MSC) 280. The MSC 280 is configured to be connected to a public switched telephone network (PSTN) 290 and is also configured to be connected to BSCs 275. The BSCs 275 may be coupled to the BS 270 through a backhaul line. The backhaul line may be provided according to at least one of E1 / T1, ATM, IP, PPP, Frame Relay, HDSL, ADSL, or xDSL. Thus, a plurality of BSCs 275 may be included in the system shown in FIG.

Each BS 270 may include at least one sector, and each sector may include an omnidirectional antenna or an antenna pointing radially out of BS 270. In addition, each sector may include two or more antennas of various types. Each BS 270 may be configured to support a plurality of frequency assignments, each of which has a specific spectrum (eg, 1.25 MHz, 5 MHz, etc.).

The intersection of sectors and frequency assignments may be called a CDMA channel. BS 270 may be referred to as a base station transceiver subsystem ('BTSs'). In this case, the word "base station" may be called the sum of one BSC 275 and at least one BS 270. The base station may also indicate “cell site”. Alternatively, each of the plurality of sectors for a particular BS 270 may be called a plurality of cell sites.

As shown in FIG. 2, the broadcasting transmitter (BT) 295 transmits a broadcast signal to the terminals 100 operating in the system. The broadcast module 111 shown in FIG. 1 is provided in the terminal 100 to receive a broadcast signal transmitted by the BT 295.

In addition, FIG. 2 illustrates a number of satellite positioning system (GPS) satellites 300. The satellites 300 help to locate the at least one terminal of the plurality of terminals 100. Although two satellites are shown in FIG. 2, useful location information may be obtained by two or less or more satellites. The GPS module 115 shown in FIG. 1 cooperates with the satellites 300 to obtain desired location information. Here, the location can be tracked using all the techniques that can track the location, not just the GPS tracking technology. In addition, at least one of the GPS satellites 300 may optionally or additionally be responsible for satellite DMB transmission.

During typical operation of a wireless communication system, BS 270 receives a reverse link signal from various terminals 100. At this time, the terminals 100 are connecting a call, transmitting or receiving a message, or performing another communication operation. Each of the reverse link signals received by a particular base station 270 is processed within by the particular base station 270. The data generated as a result of the processing is transmitted to the connected BSC 275. BSC 275 provides call resource allocation and mobility management functionality, including the organization of soft handoffs between base stations 270. In addition, the BSC 275 transmits the received data to the MSC 280, and the MSC 280 provides an additional transmission service for the connection with the PSTN 290. Similarly, PSTN 290 connects with MSC 280, MSC 280 connects with BSCs 275, and BSCs 275 send BSs 270 to transmit a forward link signal to terminals 100. ).

Hereinafter, the shape of the portable terminal related to the present invention and a display module mounted thereto will be described.

3 is a front perspective view of a mobile terminal according to the present invention; According to FIG. 3, the portable terminal is provided with a 'bar' type terminal body 101. However, the present invention is not limited to the bar type portable terminal disclosed in FIG. 3, and may be of any type such as a 'folder' type in which two terminal bodies are foldably connected, or a 'slide' type in which a slidable connection is possible. It can be applied to a portable terminal.

The case (casing, housing, cover, etc.) forming the exterior of the terminal body 101 is formed by the front case 102 and the rear case 103. Various electronic components are embedded in the space formed by the front case 102 and the rear case 103. At least one intermediate case may be further disposed between the front case 102 and the rear case 103. The cases may be formed by injecting synthetic resin, or may be formed of a metal material, for example, a material such as stainless steel (STS) or titanium (Ti), or a ceramic.

The first case 131, the display unit 151, the first sound output unit 152, the first image input unit 121, the sound input unit 122, and the like may be disposed in the front case 102.

The first manipulation unit 131 receives a command for controlling the operation of the portable terminal according to the present invention.

The display unit 151 includes a liquid crystal display (LCD) module, an organic light emitting diodes (OLED) module, a transparent OLED (TOLED), and the like, which visually express information. In addition, the display unit 151 includes a touch sensing means to receive information or a control command by a user's touch. The touch sensing means may include a transparent electrode film disposed inside the window, and a resistive film type or an electrostatic type may be applied.

The first sound output unit 152 may be implemented in the form of a receiver or a speaker.

The first image input unit 121 may be implemented in the form of a camera module for capturing an image or a video of a user.

The sound input unit 122 may be implemented in the form of a microphone, for example, to receive a user's voice, other sounds, and the like.

The rear case 103 mounted on the rear side of the portable terminal may include a power supply unit 190, a broadcast signal receiving antenna 116, a second operation unit 132, an interface unit 170, and the like.

The power supply unit 190 is mounted to the rear case 103 for supplying power to the portable terminal. The power supply unit 190 may be detachably coupled for charging, for example, as a rechargeable battery. The power supply unit 190 may be disposed to be invisible from the outside by the cover 104.

An antenna 116 for receiving a broadcast signal may be disposed on one side of the rear case 103 in addition to an antenna for a call or the like. The antenna 116 may be installed in the rear case 103 to be pulled out.

The second manipulator 132 may be installed on the side of the terminal body 101. The second manipulator 132 together with the first manipulator 131 may be collectively referred to as a manipulating portion, and may be employed in any manner as long as the user is tactile in a tactile manner. For example, the operation unit may be implemented as a dome switch or a touch screen that can receive a command or information by a user's push or touch operation, a touch pad, a wheel that rotates keys, a jog method, or a method such as a joystick. It can also be implemented as.

In the functional aspect, the first operation unit 131 is for inputting information such as numbers or letters, symbols, or menus such as start and end, etc., and the second operation unit 132 provides a first image in addition to the scroll function. It may operate as a hot-key that performs a special function such as activation of the input unit 121.

The interface unit 170 serves as a path allowing the portable terminal to exchange data with an external device. For example, the interface unit 170 is wired or wirelessly, a connection terminal for connecting to the earphone, a port for short-range communication (for example, an infrared port (IrDA port), Bluetooth port (Bluetooth port), wireless LAN port ( wireless LAN port), or at least one of power supply terminals for supplying power to the mobile terminal. The interface unit 170 may be a card socket that accommodates an external card such as a subscriber identification module (SIM) or a user identity module (UIM) and a memory card for storing information.

4 is a rear perspective view of the portable terminal of FIG. 3.

Referring to FIG. 4, a second sound output unit 154 and a second image input unit 125 may be further disposed on the rear case 103.

The second sound output unit 154 may implement a stereo function together with the first sound output unit 152 (see FIG. 3), and may be used for a call in the speakerphone mode.

The second image input unit 125 may be a camera having a photographing direction substantially opposite to that of the first image input unit 121 (see FIG. 3) and having different pixels from the first image input unit 121. For example, the first video input unit 121 has a low pixel so that it is easy to photograph a user's face and transmit it to a counterpart in a video call, and the second video input unit 125 immediately photographs a general subject. It is preferable to have a high pixel because it is not transmitted in many cases.

The flash 127 and the mirror unit 126 are further disposed adjacent to the second image input unit 125. The flash 127 shines light toward the subject when the subject is photographed by the second image input unit 125. The mirror unit 126 allows the user to see the user's face or the like when the user wants to photograph himself (self-photographing) using the second image input unit 125.

In the above description, the first operation unit 131 and the like have been described as being mounted to the front case 102 and the second operation unit 132 and the like to the rear case 103, but are not necessarily limited thereto. For example, the second manipulator 132 may be disposed in the front case 102 adjacent to the first manipulator 131. In addition, even if the second image input unit 125 is not separately provided, the first image input unit 121 may be rotatably formed so that the image capturing direction of the second image input unit 125 may be taken.

5 is a front view of a mobile terminal in which a keypad is displayed on a display as an example related to the present invention.

The mobile terminal 100 may include a plurality of modes, one of which may be a mode for editing letters, numbers, and the like as shown in FIG. 5.

In the edit mode, the display unit 151 may include a plurality of display areas 151a, 151b, and 151c. Referring to FIG. 3, the upper display area 151a may include an icon or a graphic for displaying status information of the mobile terminal. The lower display area 151c may include a keypad 400 formed of a plurality of keys. The display area 151b outputs a window for displaying the content being edited to display the content input by the keypad 400. However, the number of display areas may be larger or smaller than that shown, and the size or position may be set differently.

The keypad 400 has a constant arrangement of a plurality of keys 401 capable of inputting characters by touch. In FIG. 5, a keypad 400 composed of English characters called 'QWERTY' keyboards is illustrated. However, the present invention can also be applied to keyboards made in any language.

The keypad 400 may be limited to a plurality of subgroups consisting of only some of the keys 401. These subgroups become one unit to be expanded as described later. As the subgroup is set, the nesting key or the number thereof may be different. In FIG. 5, the first subgroup 410 on the right side and the second subgroup 420 on the left side are illustrated. The sizes of the first subgroup 410 and the second subgroup 420 may be set such that there may be overlapping keys. According to FIG. 5, some keys T, Y, G, H, V, B, and SPACE are commonly included in the first subgroup 410 and the second subgroup 420.

FIG. 6A is a diagram illustrating an operating state of a keypad when the portable terminal is tilted in the right direction in the state of FIG. 5 according to the first embodiment of the present invention.

Subgroups can be selected for expansion. That is, as shown in FIG. 6A, when the mobile terminal 100 is inclined to the right direction by a predetermined angle or more, the sensing unit 450 inside the mobile terminal 100 detects the selection and thus selects the first subgroup 410. Is completed. The selected first subgroup 410 is enlarged and displayed by the size of the original keypad 400, and the touch input area of the touch sensing means inside the portable terminal 100 is adapted to the enlarged first subgroup 410. Adjusted.

6B is an operating state diagram showing the state of the keypad when the portable terminal is tilted in the right direction in the state of FIG. 5.

Contrary to FIG. 6A, when the portable terminal 100 is tilted to the left side by a predetermined angle or more, the detection unit 450 inside the portable terminal 100 detects the selection so that the selection of the second subgroup 420 is performed. Is done. The selected second subgroup 420 is enlarged and displayed through the display unit 151, and the touch input area of the touch sensing means inside the portable terminal 100 is the key of the enlarged second subgroup 420. Adjusted to size and position.

As described above, the sub-groups of the keypad 400 are selected according to the direction in which the portable terminal 100 is inclined, and the selected sub-groups are enlarged and displayed on the display unit 151. Here, FIG. 6A illustrates that the first subgroup in the inclined direction is selected as being inclined to the right, and FIG. 6B illustrates the selection of the second subgroup as inclined to the left. As the device is tilted to the right, the second subgroup 420 opposite to the tilted direction may be set to be selected.

6C is an operating state diagram showing an output state of the keypad when the portable terminal 100 is inclined in the opposite direction in the state of FIG. 6A.

In a state in which a particular subgroup of the keypad 400 is enlarged and displayed, if it is tilted in a direction opposite to the direction in which it is inclined to enlarge, the keypad 400 returns to the state where all keys are displayed. That is, as shown in FIG. 6C, when the display panel is tilted in the opposite direction in the state of FIG. 3 indicated by a broken line, the keypad 400 is output with all keys displayed.

In order for a particular subgroup to be selected, or for all keys of the keypad 400 to be displayed, the portable terminal 100 is tilted more than a certain angle. This critical angle may be, for example, inside or outside, for example, 10 degrees, 15 degrees, and the like.

In order to select a specific subgroup, the detection unit 450 is provided inside the portable terminal 100 to detect an operation performed by the user. 6A to 6C illustrate that specific subgroups 410 and 420 are selected by the tilting operation of the mobile terminal 100. To this end, the sensing unit 450 may include an acceleration sensor or a geomagnetic sensor. The acceleration sensor or geomagnetic sensor detects whether there is a change in posture necessary to be selected as a specific subgroup of the terminal body 101.

FIG. 7A is a second embodiment related to the present invention, and is an operational state diagram showing a state of a keypad when the portable terminal is inclined at a first angle in the state of FIG. 5, and FIG. 7B is a second embodiment of the portable terminal in the state of FIG. 5. This is a diagram showing the operation of the keypad when tilted at an angle.

The subgroup to be enlarged may be set differently according to the inclination angle of the terminal body 101. To this end, the subgroup may be viewed as being moved on the keypad 400.

As shown in FIG. 7A, when the mobile terminal 100 is tilted to the right at the first angle θ1, the third subgroup 430 including 'E, R, T, Y, U, I' based on the topmost row is included. ) Is selected, and the third subgroup 430 is enlarged and displayed to the size of the keypad 400.

If the mobile terminal 100 is inclined at a second angle θ2 larger than the first angle θ1 to the right as shown in FIG. 7B, 'T, Y, U, I, O, P' based on the top row Is included in the fourth subgroup 440, and the fourth subgroup 440 is enlarged and displayed to the size of the keypad 400.

This feature may be applied to the case where the portable terminal 100 is tilted at the first angle to the left and the case where the portable terminal 100 is tilted at the second angle. Furthermore, it is possible to make the selection of subgroups more or less than double the inclination angle which can be different.

8A and 8B are operation state diagrams showing a display state of a keypad when a finger approaches a specific position of the keypad as a third embodiment related to the present invention.

When the mobile terminal 100 approaches a part of the human body or a tool detectable by the mobile terminal, such as a finger, to a specific location of the keypad 400 in order to select a particular subgroup of the keypad 400, the subgroup included in the location of the keypad 400 is included. Can be configured to be selected.

That is, as shown in FIG. 8A, when the finger approaches the right side of the keypad 400, the first subgroup 410 corresponding to the proximity position is selected and enlarged by the original size of the keypad 400. To this end, the sensing unit 450 may include a proximity sensor that detects the proximity of a finger so that when a finger approaches a specific position on the keypad 400, a subgroup including the position is selected. The proximity sensor may be integrated with a touch sensing means for sensing a touch of the keypad 400.

FIG. 8B shows that the second subgroup 420 is enlarged by the original size of the keypad 400 by selecting the second subgroup 420 by moving a finger to the left side of the keypad 400 unlike FIG. 8A.

Conversely, unlike FIG. 8A or FIG. 8B, when the finger is away from the display by more than the reference value g in the state in which the finger is approached, the keypad 400 may be configured to display all keys.

9A and 9B are operational state diagrams showing a fourth embodiment related to the present invention.

When there is a continuous touch in a specific direction on the keypad 400, the portable terminal 100 may be configured to enlarge and display a subgroup in that direction. To this end, the sensing unit 450 may include a touch sensor that continuously detects the direction of the touch on the keypad 400.

As shown in FIG. 9A, when a finger is continuously touched from the left side to the right side of the keypad, the first subgroup 410 on the right side of the keypad 400 is selected and enlarged to the original size of the keypad 400. On the contrary, as shown in FIG. 9B, when the finger is continuously touched from the right side to the left side of the keypad, the second subgroup 420 on the left side of the keypad 400 is selected and enlarged to the original size of the keypad 400. However, the first subgroup 410 and the second subgroup 420 which are selected when a continuous touch of a finger are generated may be set to be opposite to each other. In this case, the first subgroup 410 or the second subgroup 420 to be enlarged may be displayed as being sequentially moved from the left to the right or from the right to the left in the enlarged state as a slide door.

The display method of the keypad of the mobile terminal disclosed above may be configured as follows. That is, the display method of the keypad includes the step (I) of displaying a keypad composed of a plurality of keys capable of touch input in one region of the display, and displaying the keypad in one subgroup of a plurality of subgroups composed of only some of the keys. Detecting whether a selection has been made for the display, and displaying the selected subgroup of the subgroups on the display in a magnified manner. Each step may include the method described with reference to FIGS. 5-9B above.

The above-described portable terminal is not limited to the configuration and method of the embodiments described above, but may be configured by selectively combining all or some of the embodiments so that various modifications can be made.

1 is a block diagram of a portable terminal related to the present invention.

2 is a conceptual diagram of a communication system capable of operating a terminal related to the present invention;

3 is a front perspective view of a mobile terminal related to the present invention;

4 is a rear perspective view of the mobile terminal of FIG.

5 is a front view of a mobile terminal in which a keypad is displayed on a display as an example related to the present invention.

Figure 6a is a first embodiment related to the present invention, in the state of Figure 5 operating state showing the state of the keypad when tilting the portable terminal to the right direction

6B is an operating state diagram showing the state of the keypad when the mobile terminal is tilted in the right direction in the state of FIG.

 6C is an operating state diagram showing an output state of the keypad when the portable terminal is tilted in the opposite direction in the state of FIG. 6A;

FIG. 7A is a second embodiment of the present invention, in which an operation state diagram showing a state of a keypad when the portable terminal is inclined at a first angle in the state of FIG.

7B is an operational state diagram showing the state of the keypad when the mobile terminal is tilted at the second angle in the state of FIG.

8A and 8B illustrate operating state diagrams showing a display state of a keypad when a finger approaches a specific position of the keypad as a third embodiment of the present invention.

9A and 9B are operating state diagrams showing a fourth embodiment related to the present invention.

Claims (21)

A terminal body having a display unit; And A keypad which is displayed on one area of the display unit and comprises a plurality of keys input by a touch method; The keypad is formed to be limited to one of a plurality of subgroups consisting of only a part of the keys, And a selected subgroup of the subgroups is enlarged and displayed on the display unit. The method of claim 1, And a detector configured to detect whether a specific subgroup is selected from the subgroups. The method of claim 2, The detector includes a tilt detection sensor for detecting the tilt so that the subgroup on the inclined side is selected according to the tilt of the terminal body. The method of claim 3, The keypad is configured to be selected in different subgroups according to the tilt angle of the terminal body. The method of claim 3, And when the tilt in the opposite direction to the tilt occurs, all keys of the keypad are configured to be displayed. The method of claim 2, The sensing unit includes a proximity sensor that detects whether the finger approaches or closes so that when a finger approaches a specific location on the keypad, a subgroup including the location is selected. The method of claim 6, And a subgroup is formed around the key of the position when the finger approaches a specific position. The method of claim 6, And the keypad is configured to display all keys when the finger is moved away from the display unit by a reference value or more in a state where the finger is approached. The method of claim 2, The sensing unit includes a touch sensor for sensing the direction of the continuous touch so that when a continuous touch occurs on the keypad, the subgroup in the direction of the touch is selected. The method of claim 9, And the keypad is configured to display all of the keys when any continuous touch with respect to the keypad occurs while the subgroup is selected and enlarged. The method of claim 1, And the subgroup is configured to be enlarged and displayed in the size of the keypad. The method of claim 1, The keys of the keypad is a QWERTY keyboard. Displaying a keypad including a plurality of keys capable of input by a touch method in one area of the display unit; Detecting whether there has been a selection for one of the plurality of subgroups consisting of only a portion of the keys; And And expanding and displaying a selected subgroup of the subgroups on the display unit. The method of claim 13, And the detecting step detects the inclination so that the subgroup on the inclined side is selected according to the inclination of the terminal body. The method of claim 14, The sensing step of the keypad display method of the mobile terminal, characterized in that for detecting the inclination to be selected in different subgroups according to the inclination angle of the terminal body. The method of claim 14, The enlarged display step of the keypad display method of the mobile terminal, characterized in that when the inclination in the opposite direction to the tilt occurs, all the keys of the keypad to display. The method of claim 13, The detecting step of the keypad display method of the mobile terminal, characterized in that when the finger approaches a specific location on the keypad to detect whether the finger is approaching so that the subgroup including the location is selected. The method of claim 17, The enlarged display step of the keypad display method of the mobile terminal, characterized in that when the finger approaches a specific position to enlarge the sub-groups around the key of the position. The method of claim 17, The enlarged display step of the keypad display method of the mobile terminal, characterized in that to display all the keys of the keypad when the finger is away from the display unit by more than a reference value in the state in which the finger is approaching. The method of claim 13, And the detecting step detects the direction of the continuous touch such that a subgroup in the direction of the touch is selected when the continuous touch occurs on the keypad. The method of claim 20, The enlarged display step of the keypad display method of the mobile terminal, characterized in that all the keys of the keypad is displayed when any continuous touch to the keypad occurs in the state in which the sub-group is selected and displayed enlarged.

Images