KR20100114328A - Mobile terminal - Google Patents

Abstract

PURPOSE: A portable terminal is provided to change static capacity between a touch sensor and a stylus pen by a stylus pen and to transmit a various input signals to a touch sensor, thereby expanding the utilizing range of a software which is being used to the portable terminal. CONSTITUTION: A portable terminal includes a touch sensor, a stylus pen(600), and a control unit. A conductor(620) is set to be movable to a stylus pen. According to the spaced distance of a touch sensor and a conductor, the control unit distinguishes different signal. The control unit outputs a difference neighboring touch signals according to the change of static capacity between the touch sensor and the conductor.

Description

Portable Terminal {MOBILE TERMINAL}

The present invention relates to a portable terminal for transmitting and receiving digital or analog data to process the data.

In general, a portable terminal refers to a device that provides a wireless communication function between a user and a user or a user and a service provider through a mobile communication base station, and is an electronic device capable of voice and video call functions, data transmission and reception, and storage.

Due to the development of the technology, the portable terminal provides a user with various types of contents such as text information, image information, games, etc., beyond the step of delivering only simple voice information.

Such portable terminals are implemented in the form of intelligent multi terminals that integrate functions such as PDA, Digital Multimedia Broadcasting (DMB) service, and Personal Multimedia Player (PMP). It is recognized.

Such portable terminals execute on / off and predetermined functions in various ways, and are largely bar type, flip type, folder type, and sliding type according to their type. Can be divided into

In recent years, portable terminals tend to use a touch screen type display device without a separate keypad according to the demand for light and small size. The touch screen type display device does not use a separate input device such as a keypad, and when a stylus pen or a finger touches a character or a specific location displayed on the screen, the touch screen type display device is configured to process a specific function. That is, when the stylus pen touches an icon on the touch screen, a menu screen, or the like, the portable device may recognize a user's input and perform a set function.

Such a touch screen can be used easily and intuitively by simply touching a stylus pen or a finger, such as a computer or a portable device, but it does not recognize the user's input in multiple stages and recognizes it as a single input signal. There was a problem that this is difficult to perform a variety.

An object of the present invention is to provide a portable terminal having a stylus pen capable of generating various input signals.

Technical problems to be achieved by the present invention are not limited to the above-mentioned technical problems, and other technical problems not mentioned above will be clearly understood by those skilled in the art from the following description. Could be.

According to a feature of the present invention for achieving the above object, the present invention and the touch sensor; A stylus pen movably provided with a conductor; It is configured to include a control unit for determining different signals according to the distance between the touch sensor and the conductor.

The controller outputs different proximity touch signals according to a change in capacitance generated between the touch sensor and the conductor.

The conductor is provided to move closer or away from the touch sensor in the stylus pen.

The stylus pen is further provided with an operation member for controlling the movement of the conductor to be exposed to the outer surface of the stylus pen.

The operation member is provided in a button type for moving the conductor by moving in a direction perpendicular to the moving direction of the conductor.

The conductor and the operating member are provided so that the interlocking inclined surface and the driving inclined surface respectively inclined with respect to the moving direction of the conductor and the operating member correspond to each other.

An interior of the stylus fan is provided with an elastic member for restoring the conductor moved by the operating member to its original position.

The operating member is formed in a disk shape and is provided in a wheel type for moving the conductor by rotation.

The outer circumferential surface of the operating member is provided with a pinion gear, and one surface of the conductor corresponding to the pinion gear is provided with a lag gear along the moving direction of the conductor.

According to another aspect of the present invention for achieving the above object, the present invention and the touch screen; A stylus pen for changing capacitance generated on a surface of the touch screen; It includes a control unit for determining different proximity touch signal according to the change in capacitance.

The stylus pen is provided with a plurality of conductors that are stacked in order to change capacitance.

The plurality of conductors are provided to be movable individually within the stylus pen.

The front end of the stylus pen is provided with a variable capacitor that can change the capacitance.

The touch screen outputs a proximity touch signal by dividing a change in capacitance generated between the conductor and the touch sensor according to a proximity depth of the proximity touch in two or more steps, and the controller receives the proximity touch signal in multiple steps. Determine the proximity touch of.

In the present invention, since the stylus pen can transmit various user input signals to the touch sensor by changing the capacitance generated between the touch sensor and the stylus pen, the application range of the software used in the terminal can be extended.

Hereinafter, a preferred embodiment of a portable terminal according to the present invention having the configuration as described above will be described in detail with reference to the accompanying drawings.

Portable terminals described herein include mobile phones, smart phones, laptop computers, digital broadcasting terminals, personal digital assistants (PDAs), portable multimedia players (PMPs), navigation, and the like. Can be.

1 is a block diagram showing a configuration of a portable terminal according to the present invention.

As shown in this figure, the portable terminal 100 (hereinafter, referred to as a 'terminal') includes a wireless communication unit 110, an A / V (Audio / Video) input unit 120, a user input unit 130, and a sensing unit 140. , The output unit 150, the memory unit 160, the interface unit 170, the controller 180, and the power supply unit 190 may be configured.

The wireless communication unit 110 may include one or more modules that enable wireless communication between the terminal 100 and a wireless communication system or between the terminal 100 and a network in which the terminal 100 is located. For example, the wireless communication unit 110 includes 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. Can be.

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 mean a satellite channel, a terrestrial channel, or the like. 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 the terminal 100.

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, the broadcast related information may mean information related to a broadcast channel, a broadcast program, or a broadcast service provider. The broadcast related information may also 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 broadcasting systems, and in particular, digital multimedia broadcasting-terrestrial (DMB-T), digital multimedia broadcasting-satellite (DMB-S), and media forward link (MediaFLO). Digital broadcast signals can be received using digital broadcasting systems such as only), digital video broadcast-handheld (DVB-H), integrated services digital broadcast-terrestrial (ISDB-T), and the like.

Of course, the broadcast receiving module 111 is configured to be suitable for all broadcasting systems that provide broadcasting signals 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 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. 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 built in or external to the 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. 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 position information module 115 is a module for acquiring the position of the terminal 100, such as GPS (GPS), and receives position information from a plurality of satellites.

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 an image frame such as a still image or a video obtained by an image sensor in a video call mode or a 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 unit 160 or transmitted to the outside through the wireless communication unit 110. Two or more cameras 121 may be provided according to a configuration aspect of the terminal 100.

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 as 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 key input data input by the user for controlling the operation of the terminal 100. The user input unit 130 may include a key pad, a dome switch, a touch pad (constant voltage / capacitance), a jog wheel, a jog switch, and the like.

The sensing unit 140 is a current state of the terminal 100, such as the opening and closing state of the terminal 100, the position of the terminal 100, the presence or absence of user contact, the orientation of the terminal 100, the acceleration / deceleration of the terminal 100, etc. Detects and generates a sensing signal for controlling the operation of the terminal 100.

For example, when the terminal 100 is in the form of a slide phone, it may sense whether the slide phone is opened or closed. 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. Meanwhile, the sensing unit 140 may include a proximity sensor 141.

The output unit 150 generates output related to visual, auditory, or tactile senses, which includes a display unit 151, an audio output module 152, an alarm output module 153, a haptic module 154, and a projector. Module 155 may be included.

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

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. It may include at least one of (3D display).

Some of these displays can be configured to be transparent or light transmissive 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 is TOLED (Transparant OLED).

The rear structure of the display unit 151 may also be configured as a light transmissive structure. With this structure, the user can see the object located behind the terminal body through the area occupied by the display unit 151 of the terminal body.

In addition, two or more display units 151 may exist according to the implementation form of the terminal 100. For example, a plurality of display units may be spaced apart or integrally disposed on one surface of the terminal 100, or may be disposed on different surfaces.

When the display unit 151 and a sensor for detecting a touch operation (hereinafter, a touch sensor) form a mutual layer structure (hereinafter, a touch screen), the display unit 151 may be an input device other than an output device. May also be used. The touch sensor may have, for example, a form of a touch film, a touch sheet, a touch pad, or the like.

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

When 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 then transmits corresponding data to the controller 180. As a result, the controller 180 can know which area of the display unit 151 is touched.

Referring to FIG. 1, a proximity sensor 141 may be disposed in an inner region of the terminal 100 surrounded by the touch screen 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. Proximity sensors have a longer life and higher utilization than touch sensors.

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 magnetic proximity sensor, and an infrared 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 proximity touch is performed by the pointer on the touch screen refers to a position where the pointer is perpendicular to the touch screen when the pointer is in proximity proximity.

The proximity sensor detects a proximity touch and a proximity touch pattern (for example, a proximity touch distance, a proximity touch direction, a proximity touch speed, a proximity touch time, a proximity touch position, and a proximity touch movement state). Information corresponding to the sensed proximity touch operation and 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 by the terminal 100. The sound output module 152 may include a speaker, a buzzer, and the like.

The alarm output module 153 outputs a signal for notifying occurrence of an event of the terminal 100. Examples of events generated in the terminal 100 include call signal reception, message reception, key signal input, and touch input.

The alarm output module 153 may output a signal for notifying occurrence of an event in a form other than a video signal or an audio signal, for example, vibration. Since the video signal or the audio signal may also be output through the display unit 151 or the audio output module 152, the display unit 151 or the audio output module 152 may be classified as part of the alarm unit 153. have.

The haptic module 154 generates various tactile effects that the user can feel. Vibration is a representative example of the haptic effect generated by the haptic module 154. 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 may be 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 the jetting or suction port, grazing to the skin surface, contact of the 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 may not only deliver the haptic effect through direct contact, but also may implement the user to feel the haptic effect through a muscle sense such as a finger or an arm. Two or more haptic modules 154 may be provided according to a configuration aspect of the terminal 100.

The projector module 155 is a component for performing an image project function using the terminal 100 and is identical to an image displayed on the display unit 151 according to a control signal of the controller 180. At least some of the other images may be displayed 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 in the longitudinal direction on the side, front or back of the terminal 100. Of course, the projector module 155 may be provided at any position of the terminal 100 as necessary.

The memory unit 160 may store a program for processing and controlling the controller 180, and temporarily stores input / output data (for example, a phone book, a message, an audio, a still image, a video, etc.). It can also perform a function for. 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 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, It may include a storage medium of at least one type of magnetic disk, optical disk. The terminal 100 may operate in connection with a web storage that performs a storage function of the memory unit 160 on the internet.

The interface unit 170 serves as a path with all external devices connected to the terminal 100. The interface unit 170 receives data from an external device, receives power, transfers the power to each component inside the terminal 100, or transmits the data inside the terminal 100 to an 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 that stores various types of information for authenticating the use authority of the terminal 100, and includes a user identification module (UIM), a subscriber identification module (SIM), and a universal user authentication module (UI). 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. Therefore, the identification device may be connected to the terminal 100 through a port.

The interface unit may be a passage through which power from the cradle is supplied to the terminal 100 when the terminal 100 is connected to an external cradle, or various command signals input from the cradle by a user are input to the terminal 100. It can be a passage through). Various command signals or power input from the cradle may operate as signals for recognizing that the terminal 100 is correctly mounted on the cradle.

The controller 180 typically controls the overall operation of the terminal 100. For example, perform related control and processing for voice calls, data communications, video calls, and the like.

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 the 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, 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 functions and operations described herein. Software code may be implemented in software applications written in a suitable programming language. The software code may be stored in the memory unit 160 and executed by the controller 180.

2A and 2B are perspective views respectively showing the configuration of a preferred embodiment of a portable terminal according to the present invention.

As shown in Figure 2a and 2b, the terminal 100 is provided with a terminal body of the bar shape. However, the present invention is not limited thereto and may be applied to various structures such as a slide type, a folder type, a swing type, a swivel type, and two or more bodies are coupled to be relatively movable.

The body includes a casing (casing, housing, cover, etc.) that forms an exterior. In this embodiment, the case may be divided into a front case 101 and a rear case 102. Various electronic components are built in the space formed between the front case 101 and the rear case 102. At least one intermediate case may be further 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 audio output unit 152, the camera 121, the user input units 130/131 and 132, the microphone 122, and the interface unit 170 may be disposed in the terminal body, mainly the front case 101. Can be.

The display unit 151 occupies most of the main surface of the front case 101. The sound output unit 152 and the camera 121 are disposed in regions adjacent to one end of both ends of the display unit 151, and the user input unit 131 and the microphone 122 are disposed in regions adjacent to the other end. The user input unit 132 and the interface unit 170 may be disposed on side surfaces of the front case 101 and the rear case 102.

The user input unit 130 is manipulated to receive a command for controlling the operation of the terminal 100 and may include a plurality of manipulation 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.

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

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

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

For example, the camera 121 has a low pixel so that the user's face is photographed and transmitted to the counterpart in case of a video call, and the camera 121 'photographs a general subject and does not transmit it immediately. It is desirable to have a high pixel because there are many. The cameras 121 and 121 'may be installed in the terminal body so as to be rotatable or pop-upable.

A flash 123 and a mirror 124 are further disposed adjacent to the camera 121 '. The flash 123 shines light toward the subject when the subject is photographed by the camera 121 '. The mirror 124 allows the user to see his / her own face or the like when photographing (self-photographing) the user using the camera 121 '.

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

An antenna (not shown) for receiving a broadcast signal may be additionally disposed on the side of the terminal body. An antenna that forms part of the broadcast receiving module 111 (refer to FIG. 1) may be installed to be pulled out of the terminal body.

The terminal body is equipped with a power supply unit 190 for supplying power to the terminal 100. The power supply unit 190 may be embedded in the terminal body or may be directly detachable from the outside of the terminal body.

The rear case 102 may be further equipped with a touch pad 135 for sensing a touch. Like the display unit 151, the touch pad 135 may also be configured to have a light transmission type. In this case, if the display unit 151 is configured to output visual information from both sides, the visual information may be recognized through the touch pad 135. The information output on both surfaces may be controlled by the touch pad 135. Alternatively, a display may be additionally mounted on the touch pad 135, and a touch screen may be disposed on the rear case 102 as well.

The touch pad 135 operates in association with the display unit 151 of the front case 101. The touch pad 135 may be disposed parallel to the rear of the display unit 151. The touch pad 135 may have the same or smaller size as the display unit 151.

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

3A and 3B are front views showing one operating state of an embodiment of 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.

In order to input such information, at least one of the letters, numbers, symbols, graphics, or icons may be displayed in a predetermined arrangement so as to be implemented in the form of a keypad. Such a keypad may be called a so-called " soft key ".

3A illustrates receiving a touch applied to a softkey through the front of the terminal body.

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

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

3B illustrates receiving a touch applied to a softkey through the rear of the terminal body. If FIG. 3A is a portrait in which the terminal body is arranged vertically, FIG. 3B illustrates a landscape in which the terminal body is arranged horizontally. The display unit 151 may be configured to convert the output screen according to the arrangement direction of the terminal body.

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

When the soft keys 151c 'are touched through the touch pad 135 (refer to FIG. 2B), letters, numbers, symbols, etc. corresponding to the touched soft keys are displayed on the output window 151a'. As described above, the touch input through the touch pad 135 has an advantage of preventing the softkey 151c 'from being covered by the finger when touched, as compared with the touch input through the display unit 151. When the display unit 151 and the touch pad 135 are transparent, the fingers located at the rear of the terminal body can be visually checked, and thus more accurate touch input is possible.

In addition to the input methods disclosed in the above embodiments, the display unit 151 or the touch pad 135 may be configured to receive a touch input by scrolling. By scrolling the display unit 151 or the touch pad 135, the user may move an object displayed on the display unit 151, for example, a cursor or a pointer located at an icon. 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 may be useful for editing an 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. For example, the function may include activation or deactivation of the display unit 151 or the touch pad 135.

The proximity sensor 141 described with reference to FIG. 1 will be described in more detail with reference to FIG. 4.

4 is a conceptual diagram illustrating the proximity depth of the proximity sensor in the embodiment of the present invention.

As shown in FIG. 4, when a pointer such as a stylus pen 600 is close to the touch screen, the proximity sensor 141 disposed in or near the touch screen detects this and outputs a proximity signal.

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

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

Specifically, when the pointer is completely in contact with the touch screen (d ₀ ), it is recognized as a touch touch. When the pointer is positioned below the distance d ₁ on the touch screen, the pointer is recognized as a proximity touch of a first proximity depth.

When the pointer is spaced apart from the distance d ₁ or more and less than d ₂ on the touch screen, the pointer is recognized as a proximity touch of a second proximity depth. When the pointer is spaced apart from the distance d ₂ or more and less than d ₃ on the touch screen, the pointer is recognized as a proximity touch of a third proximity depth. When the pointer is positioned at a distance of more than d ₃ from the touch screen, the proximity touch is recognized as released.

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

FIG. 5 is a conceptual diagram illustrating a control method for a touch operation when a pair of display units overlap in an embodiment of the present invention.

The terminal disclosed in this drawing is a folder-type terminal in which a folder unit is foldable with respect to a main body. The first display unit 156 mounted in the folder unit may be a light transmissive type or a transparent type such as a TOLED, but the second display unit 157 mounted in the main body may not have a shape such that light is transmitted through the LCD. The first and second display units 156 and 157 may be configured as touch screens capable of touch input, respectively.

For example, when a touch (contact touch or proximity touch) with respect to the first display unit or the TOLED 156 is detected, the controller 180 may determine the touch type and the touch time. At least one image of the list of images displayed in the TOLED 156 may be selected or run.

Hereinafter, touch, long touch, long touch & drag (drag) with respect to a method in which information displayed on another display unit or LCD 157 is controlled when a touch is applied to the TOLED 156 exposed to the outside in an overlapped form. The description is based on the input method separated by).

In the overlapped state (the terminal is closed), the TOLED 156 is disposed to overlap the lower side of the LCD 157. In this state, when a touch different from a touch for controlling the image displayed on the TOLED 156 is detected, for example, a long touch (for example, a touch lasting more than 2 seconds to 3 seconds), the controller 180 ) Causes at least one image of the image list displayed on the LCD 157 to be selected according to the sensed touch input. The result of the execution of the selected image is displayed in the TOLED 156.

The long touch can also be used to selectively move a desired one of the objects displayed on the LCD 157 (without its execution operation) to the TOLED 156. That is, the user may select one region of the TOLED 156 corresponding to a specific object of the LCD 157. In the long touch, the controller 180 moves the object to the TOLED 156 for display. The object displayed on the TOLED 155 may also be transferred to the LCD 157 according to a predetermined touch input, for example, flicking or swirling, on the TOLED 156. This figure illustrates the case where the number 2 menu displayed on the LCD 156 is moved to the TOLED 156 for display.

If another input, for example, a drag, is additionally detected along with the long touch, the controller 180 is a function related to the image selected by the long touch. Can be displayed on. In this figure, the case where the preview (male photograph) with respect to the 2nd menu (image file) is performed is illustrated.

When the preview screen is output and the drag is made to the TOLED 156 for another image while maintaining the long touch, the controller 180 controls the selection cursor (or selection bar) of the LCD 157. The selected cursor is displayed on the preview screen (woman photo). After that, when the touch (long touch and drag) is finished, the controller 180 displays the first image selected by the long touch.

The touch operation (long touch and drag) is performed when a slide (movement of the proximity touch corresponding to the drag) is detected along with the long proximity touch (the proximity touch lasting at least 2 seconds to 3 seconds) for the TOLED 156. The same applies to.

If a touch operation other than those mentioned above is detected, the controller 180 may operate in the same manner as a general touch control method.

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

6A and 6B are conceptual views for explaining a proximity touch recognition region in which a proximity signal is detected and a haptic region in which a haptic effect is generated in an embodiment of the present invention.

6A shows an object such as an icon or a menu item in a circle for convenience of description. As shown in (a) of FIG. 6A, an area where an object is displayed on the display unit 151 may be divided into a first area A in the center and a second area B surrounding the area. The first area A and the second area B may be configured to generate a tactile effect having different intensities or patterns. For example, the first vibration may be output when the second region B is touched, and the second vibration may be output when the first region A is touched.

If it is necessary to simultaneously set the proximity touch recognition area and the haptic area in the area where the object is displayed, the haptic area where the haptic effect occurs and the proximity touch recognition area where the proximity signal is detected Can be set differently. That is, the haptic area may be set narrower than the proximity touch recognition area, or the haptic area may be set wider than the proximity touch recognition area. For example, in (a) of FIG. 6A, an area including the first area A and the second area B may be set as a proximity touch recognition area, and the first area A may be set as a haptic area.

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

The display unit 151 may be configured such that the size of the proximity touch recognition area varies depending on the depth of proximity. That is, as shown in (a) of FIG. 6B, the corresponding proximity touch recognition area is gradually reduced to 'C', 'B', and 'A' according to the proximity depth to the display unit 151, Alternatively, the corresponding proximity touch recognition region may be gradually increased according to the depth of proximity to the display unit 151. Even in this case, the haptic region may be set to a constant size regardless of the depth of proximity to the display unit 151 as in the 'H' region illustrated in FIG. 6B.

 In the case of dividing the region where the object is displayed for setting the haptic region or the proximity touch recognition region, in addition to the concentric division as shown in FIG. 6A, the division in the horizontal or vertical direction, the radial division, and a combination thereof Various methods such as division can be used

An example of a capacitance change and a touch sensor according to a touch will be described with reference to FIGS. 7 and 8. 7 is a conceptual view of a touch button showing a change in capacitance when there is a touch, and FIG. 8 shows an example of a capacitive touch sensor.

Referring to FIG. 7, the capacitance change of the conductive material by touch will be described first. For the sake of understanding, a touch button with a simple structure will be described as an example.

In the touch button, a contact is basically formed between the conductive materials 80 and 81, and a predetermined parasitic capacitance 90 (Cp) 90 is present therebetween. In this case, the contact point is not necessarily required, and depending on the distribution of the conductive material, the contact point may have a predetermined parasitic capacitance even without forming a contact point.

The touch button is usually formed in a form of surrounding the conductive materials 80 and 81 by a predetermined medium 88, mainly glass or plastic. When the touch button is touched by a conductor, for example, when the stylus pen 600 is touched, the predetermined medium 88 is interposed between the conductive materials 80 and 81 and the stylus pen 600. Through this, predetermined capacitances 91 and 92 (hereinafter referred to as "Cf") components are generated.

Therefore, when there is a touch, the total capacitance value of the touch button increases by adding Cp and Cf. The change in capacitance value is represented by a change in the number of charges or the time taken for charging for a predetermined time when voltage is applied to the touch button to repeat charging and discharging. The change may be sensed by the touch controller (not shown) to determine whether the touch is made.

So far, we have examined the principle of detecting touch by a conductor in the conventional capacitive touch sensor. Hereinafter, an example of a capacitive touch sensor using the above-described change in capacitance will be described with reference to FIG. 8.

Referring to FIG. 8, the capacitive touch sensor unit may include two plates 20 and 21 and a touch control unit 10 coated with a conductive material having a predetermined parasitic capacitance Cp in a predetermined form, respectively. It can be configured to include. The touch controller may detect a change in capacitance of the conductive material to determine a touch, a position, and the like, and output a touch signal. The conductive material is preferably indium tin oxide (ITO).

In more detail, the sensing unit 202 formed by applying the conductive material to a predetermined width is disposed on the upper plate 20 in one direction, spaced apart at regular intervals in parallel with the adjacent sensing units 201 and 203.

The lower plate 21 is basically the same structure as the upper plate 20, but the detection unit (211.212, 213, 214) is disposed in a direction different from the one direction, preferably arranged to be perpendicular to the one direction. The sensing units disposed on the upper plate 20 and the lower plate 21 are electrically connected to the touch controller 10, respectively.

When the sensing units of the upper plate 20 and the sensing units of the lower plate 21 are arranged at right angles, the sensing units of the upper plate 20 face the direction in which the sensing units of the upper plate 20 face the X axis. This heading can be seen on the Y axis, respectively.

Therefore, each of the sensing units may be arranged in order from one edge to the other edge of each axis, and may correspond to the X coordinate and the Y coordinate, respectively. When a predetermined coordinate system is configured in this way, one sensor may be regarded as configuring a channel that is responsible for a specific coordinate for one axis.

Hereinafter, in the present specification, "channel" is used as the same meaning as each sensing unit. As the conductor contacts a specific position of the touch sensor, the increase in Cf of the channel closest to the conductor is greatest.

Accordingly, the touch controller 10 may output the touch signal by determining the specific position by reading coordinate values of the channel having the largest increase in Cf on the X axis and the channel having the largest increase in Cf on the Y axis.

Here, it is not necessarily configured in the form of the upper plate and the lower plate, the sensing unit which is responsible for one coordinate axis on one surface of one plate is disposed in one direction, the other side in the direction perpendicular to the one direction is responsible for the other coordinate axis The sensing units may be disposed respectively.

In addition, the sensing units do not necessarily have a line shape, and may be formed in various forms as necessary. If the plate and the conductor constituting the capacitive touch sensor can transmit light and form a layer structure with the display unit 151, it may be used as a touch screen as described above.

Referring to FIG. 9, an example of a terminal provided with a touch screen in which a sensing unit is disposed in a form different from that of FIG. 8 will be described.

Referring to FIG. 9, each channel is formed in a shape in which a conductor formed in a lozenge on the touch screen of the terminal 100 is in contact with adjacent lozenge conductors and vertices.

The rhombic conductors forming the longitudinally facing channels 211, 212, 213 are formed in another rhombic space formed between the four sides of the rhombus constituting the horizontally facing channels 201, 202.

This arrangement can prevent the interference from occurring by shielding the conductors constituting the horizontal channels and the vertical channels from each other. When there is a touch by a conductor at a specific point 299 of the touch screen having the above arrangement, the Cf increase amount of the vertical channel 212 closest to the horizontal channel 202 closest to the specific point 299 is greatest. Will be large. By detecting the change in the Cf value, the touch controller 10 may determine the coordinates of the touch and transmit the touch signal to the controller 180 of the terminal 100.

By the way, the capacitive touch screens described above have been used to detect whether the conductor is in direct contact, that is, only touch, and a separate proximity sensor has been used to detect a non-contact touch.

Hereinafter, referring to FIG. 7 again, a principle of recognizing whether the capacitive touch screen described above is approaching, ie, proximity touch, rather than direct contact with the conductor will be described.

Referring to FIG. 7, only the touch 88 exists between the conductive material 80 and 81 and the stylus pen 600, while the proximity touch is between the medium 88 and the stylus pen 600. The difference is that there may be more medium called air layer (not shown).

Therefore, the Cf value is inversely proportional to the distance between the conductor and the conductive material and is affected by the permittivity of the medium. In the case of the proximity touch, which has a long distance between the conductors and further passes through the medium called air, the Cf value is smaller than the contact touch.

However, if the sensitivity of the touch sensor is increased, it can be sufficiently detected. Here, increasing the sensitivity means recognizing the change of Cf smaller than the Cf recognized as the touch touch as the proximity touch.

For example, it is assumed that a value of Cf of a touch button is set to be 0 when there is no touch at all, and when the touch value is at most 100, when the value is 50 or more, the touch is recognized. At this time, a value of 20 or more and 49 or less is set to be recognized as a proximity touch.

Therefore, in the capacitive touch screen, if the sensitivity of a specific channel is increased, a conductor approaching the specific channel can be detected. An example of a terminal provided with such a touch screen will be described with reference to FIG. 10.

Referring to FIG. 10, a capacitive touch screen 151 is provided in the terminal 100. In FIG. 10, only six channels in the horizontal direction are illustrated for simplicity of explanation, and the shapes thereof are simply displayed as straight lines having a predetermined thickness, but the actual configuration may take various forms as described above.

Each channel may be connected to a touch controller (not shown), and the touch controller may detect a change in the Cf value of each channel to determine or determine whether or not the touch is performed, and transmit a touch signal to the controller 180.

In addition, an area 301 in which the channel 201 located on the top of the touch screen 151 can detect a touch touch is displayed. In this case, when the sensitivity of the channel 201 is amplified, the approach of the conductor may be sensed in the predetermined region 401 according to the sensitivity amplified degree. Therefore, according to which channel's sensitivity is increased, a position where a proximity touch can be detected on the touch screen can be determined.

The terminal 100 may also detect the depth of the proximity touch. As described above, since the value of Cf is inversely proportional to the distance between the conductor and the conductive material, the closer the conductor is to the touch screen, the larger the Cf value, and the farther it is, the smaller the Cf value.

Therefore, when the sensitivity of the touch screen is increased, the terminal 100 divides the maximum and minimum intervals of the Cf value set to be recognized as the proximity touch into at least two. Can be.

For example, assuming that the relative value of Cf recognized as the proximity touch when the sensitivity is amplified is 20 to 40 yarns, the touch controller may be 20 to 30 as the proximity touch of the second proximity depth and 30 to 40 the first touch. Each of them is recognized as a proximity touch of proximity depth.

The touch screen capable of recognizing the above-mentioned proximity touch may be implemented in a resistive touch screen as well as a capacitive touch sensor. This will be described with reference to FIG. 11. 11 is a structural diagram illustrating an example of a resistive touch screen.

Referring to FIG. 11, two plates 50 and 51 are connected to the touch controller 10 via an analog-to-digital converter (ADC) 11. In more detail, it is preferable that at least one of the two plates 50 and 51 to be touched is an elastic body.

In addition, the two plates have a conductor having a predetermined electrical resistance on a surface facing each other to form a resistance film, and are connected to the ADC 11 through electrodes 501 and 511 at both ends of the resistance film.

The electrodes 501 and 511 are positioned at both ends of each plate at right angles to each other. A predetermined insulating rod (not shown) or a dot spacer (not shown) is provided between each of the resistive films to prevent the resistive films from contacting when there is no touch.

In the operation state of the resistive touch screen, when a constant current flows through both ends of the resistive film, the resistive film acts like a resistor having a resistive component, thereby applying voltage across both ends.

In this case, when a touch of a predetermined pressure is applied to the upper surface of the plate 50 to be touched, deformation occurs due to pressure on the plate 50, and the two resistance layers are in contact with each other. Therefore, the resistance components of the two surfaces form a parallel connection of the resistors, and a change in the resistance value occurs.

At this time, a change in voltage also occurs due to the current flowing through both ends, that is, the ADC 11 detects the change of the voltage and transmits an output signal to the touch controller 10. The touch controller 10 may determine whether or not the touch is based on the output signal of the ADC 11 and output a touch signal corresponding thereto.

Unlike the capacitive touch screen described above, the resistive touch screen uses a change in voltage according to a change in resistance value and does not use a change in Cf value in sensing a touch.

However, it still uses conductor membranes, so there is a change in Cf as the conductor approaches. Therefore, the resistive touch screen is further provided with a device capable of detecting a change in the Cf value, and if the sensitivity is amplified enough to detect a change in the Cf due to the proximity of the conductor, the proximity touch without a separate proximity sensor. Can be recognized.

In addition, the change of Cf according to the proximity depth of the conductor may be divided into at least two steps to recognize the proximity touch in multiple steps.

Up to now, a terminal capable of recognizing a proximity touch by amplifying a sensitivity of a specific channel on a touch screen has been described. Next, a terminal that can sense not only the presence and depth of the proximity touch but also the position of the proximity touch will be described.

 Since it is very difficult to find the exact position by detecting the change of Cf due to proximity touch for each channel, the position of the proximity touch on the touch screen is formed by forming a group with a plurality of channels and judging whether there is proximity touch by group. Can be determined.

Referring to FIG. 12, six transverse channels 201-206 are shown on the capacitive touch screen 151. In addition, only six channels in the transverse direction are illustrated for simplicity of description as shown in FIG. 10, and the shapes thereof are also simply displayed as straight lines having a predetermined thickness, but the actual configuration may take various forms as described above.

Here, the six channels were paired by two to classify all three groups. For each group, regions 301, 302, 303 for detecting touch touch and regions 401, 402, 403 for detecting proximity touch are displayed.

By forming the group as described above, it is possible to determine the position of the proximity touch by the conductor divided into three areas. In addition, the proximity touch may be recognized by amplifying only the sensitivity of the upper channel 201, 202 and the lower channel 205, 205 group without amplifying the sensitivity of the channel 203, 204 located in the center of the touch screen 151. You can leave gaps between groups.

By using the above method, the position of the proximity touch can be detected more accurately. Therefore, if a group is formed by appropriately combining a channel having a high sensitivity and a channel having no sensitivity as needed, the accuracy of the proximity touch position recognition can be greatly improved.

If a predetermined menu or icon that can be selected by receiving a proximity touch is placed at a position corresponding to the group capable of recognizing the proximity touch, the utilization thereof can be further increased.

For example, when the terminal module 100 is provided with the projector module 155, when the image is projected through the projector module 155, the control menu for controlling the projection content is operated by the proximity touch through the above-described method. can do. In this case, it is possible to operate without applying physical contact to the user input unit and the projected image is not shaken.

As another example, when the camera 121 is provided in the terminal 100, when photographing a predetermined subject using the camera, the shutter icon may be manipulated by the proximity touch in the above-described method. In this case, it is possible to more easily prevent self-shooting or shake caused by physical contact with the terminal for operating the shutter icon.

13 and 14 are shown in cross-sectional view the configuration of the stylus pen according to a preferred embodiment of the present invention.

13 and 14, the exterior and the skeleton of the stylus pen 600 are configured by the housing 610. The housing 610 is made of a synthetic resin material and does not have conductivity.

In general, the front end of the housing 610 is tapered to reduce the contact area with the display unit 151. The housing 610 is formed long and an installation space 612 is formed inside the housing 610.

The fixing protrusion 614 is formed to protrude toward the installation space 612 inside the housing 610. The fixing protrusion 614 serves to support one end of the elastic member 630 to be described below. The fixing protrusion 614 does not interfere with the movement trajectory of the conductor 620.

A guide rib 616 is provided inside the housing 610. The guide rib 616 serves to guide the movement of the guide protrusion 624 of the conductor 620 to be described below, the pair is spaced at regular intervals.

The installation space 612 is provided with a conductor 620. The conductor 620 is provided to be movable in the stylus pen 600. The conductor 620 is made of a metal material that transfers electricity well because the resistance to electricity is very small.

The support protrusion 622 is formed on the conductor 620. The support protrusion 622 is provided to correspond to the fixing protrusion 614. The support protrusion 622 serves to support the other end of the elastic member 630.

The conductor 620 is provided with a guide protrusion 624. The guide protrusion 624 is provided to be movable between the pair of guide ribs 616. The guide protrusion 624 moves between the pair of guide ribs 616 to guide the movement of the conductor 620.

Interlock slope 626 is formed on the conductor 620. The interlocking slope 626 is formed to correspond to the driving slope 642 of the operation member 640 to be described below. The interlocking slope 626 is in close contact with the driving slope 642 to move the conductor 620 according to the movement of the operation member 640. A tapered portion 628 is formed at the tip of the conductor 620 to correspond to the tip of the housing 610.

The stylus pen 600 is provided with an elastic member 630 for restoring the conductor 620 moved by the operation member 640 to its original position. That is, the elastic member 630 is provided inside the housing 610. The elastic member 630 may be elastically deformed due to its material and shape. The elastic member 630 is interposed between the housing 610 and the conductor 620 to provide an elastic force to return to the original position after the conductor 620 is moved by an external force in the housing 610.

In more detail, the elastic member 630 causes elastic deformation when the conductor 620 moves in conjunction with the movement of the operating member 640, and when an external force is removed from the operating member 640, a restoring force is obtained. By returning the conductor 620 to the original position.

In the present embodiment, the elastic member 630 is fixed at both ends of the fixing protrusion 614 and the support protrusion 622 to provide an elastic force to the support protrusion 622 to move relative to the fixing protrusion 614. do.

On the other hand, the housing 610 is provided with an operating member 640. The operation member 640 is provided with an external force to control the movement of the conductor 620. The operation member 640 is provided such that a portion thereof is exposed to the outer surface of the housing 610 in order to be operated by a user.

In this embodiment, the operation member 640 is provided as a button type for moving the conductor 620 by moving in a direction perpendicular to the moving direction of the conductor 620. The operation member 640 is provided with a driving slope 642.

The driving slope 642 is provided to correspond to the interlocking slope 626 of the conductor 620. The interlocking slope 626 and the driving slope 642 are formed to be inclined with respect to the moving direction of the conductor 620 and the operation member 640, respectively.

As shown in FIG. 13, the conductor 620 is positioned at a constant height a by the elastic member 630 in the installation space 612 of the housing 610. In this state, when the user presses the operating member 640, the operating member 640 is moved in a direction perpendicular to the longitudinal direction of the housing 610.

In this case, the interlocking inclined surface 626 is guided to the driving inclined surface 642 of the operation member 640 so that the conductor 620 moves in the longitudinal direction of the housing 610, and the conductor 620 is illustrated in FIG. 14. As shown in FIG. 2, the housing 610 is positioned at a height b adjacent to the tip of the housing 610.

When the user removes the external force applied to the operating member 640, the conductor 620 is returned to its original position by the restoring force of the elastic member 630, and the operating member 640 also includes the conductor ( By the interlocking slope 626 of 620, it is returned to the original position.

As such, when the position of the conductor 620 is changed, the distance between the conductive materials 80 and 81 and the conductor 620 of the touch sensor is changed to between the conductive materials 80 and 81 and the conductor 620. The generated capacitance changes.

Then, the controller 180 amplifies the sensitivity of the channel provided in the touch sensor to detect a change in capacitance generated between the conductor 620 and the touch sensor.

That is, the touch sensor outputs a proximity touch signal by dividing a change in capacitance generated between the conductor 620 and the touch sensor into two or more steps, and the controller 180 receives the proximity touch signal. Recognize multi-level proximity touch. Therefore, the stylus pen 600 may input a multi-level signal of the terminal 100 by moving the conductor 620 therein.

Next, another embodiment of a portable terminal according to the present invention will be described in detail with reference to the accompanying drawings.

Another embodiment of the present invention is different from the method of moving the conductor in the stylus pen, and the description of the same components as the embodiment shown in Figure 13 and 14 will be omitted.

15 and 16 are shown in cross-sectional view of the configuration of a stylus pen according to another embodiment of the present invention.

15 and 16, the exterior and the skeleton of the stylus pen 700 are constituted by a housing 710 in which an installation space 712 is formed.

A guide rib 714 is provided inside the housing 710. The guide ribs 714 serve to guide the movement of the guide protrusions 722 of the conductors 720 by being spaced apart at regular intervals.

The installation space 712 is provided with a conductor 720. The conductor 720 is provided to be movable in the stylus pen 700. The conductor 720 is made of a metal material that transfers electricity well because the resistance to electricity is very small.

Guide conductor 722 is provided on the conductor 720. The guide protrusion 722 is provided to be movable between the pair of guide ribs 714. The guide protrusion 722 moves between the pair of guide ribs 714 to guide the movement of the conductor 720. A tapered portion 724 is formed at the tip of the conductor 720 to correspond to the tip of the housing 710.

The conductor 720 is provided with a rack gear 726. The interlocking gear 726 is provided to correspond to the pinion gear 742 of the operation member 740 to be described below. The rack gear 726 is provided along the moving direction of the conductor 720.

In addition, the housing 710 is provided with an operating member 740. The operation member 740 serves to control the movement of the conductor 720 by receiving an external force. The operation member 740 is provided so that a part thereof is exposed to the outer surface of the housing 710 in order to be operated by the user.

The operation member 740 is formed in a disk shape and is provided in a wheel type for moving the conductor 720 by rotation. A pinion gear 742 is provided on the outer circumferential surface of the operation member 740. The pinion gear 742 is engaged with the rack gear 726 to interlock the conductor 720 by the movement of the operation member 740.

As shown in FIG. 15, the conductor 720 is positioned at a constant height a in the installation space 712 of the housing 710. When the user rotates the operation member 740 in such a state, the conductor 720 is moved by the lag gear 726 and the pinion gear 742.

As shown in FIG. 16, when the operating member 740 is rotated in the opposite direction at the position (b) in which the conductor 720 is moved, the conductor 720 is moved in the opposite direction to return to the original position.

17 is an explanatory diagram showing sequentially the process of moving the conductor in the embodiment of the present invention.

As shown in FIG. 17, the conductor 720 moves with respect to the display unit 151 or the touch sensor to have a different separation distance, and thus, the conductor 720 and the display unit 151 Alternatively, when the separation distance between the conductor 720 and the touch sensor changes, the capacitance may change, and various signals may be input to the terminal 100.

Next, another embodiment of a portable terminal according to the present invention will be described in detail with reference to the accompanying drawings.

According to another embodiment of the present invention, the method of changing the capacitance of the stylus pen is different, and the description of the same components as those of the embodiment shown in FIGS. 13 to 17 will be omitted.

18 is a conceptual diagram illustrating a stylus pen constituting another embodiment of the present invention.

As shown in FIG. 18, a plurality of conductors 810, 820, and 830 are provided inside the stylus pen 800. The plurality of conductors 810, 820, and 830 are provided to be movable individually within the stylus pen 800.

The plurality of conductors 810, 820, 830 may be stacked in sequence, and all of them are separated so that only one conductor 810 is positioned at the tip of the stylus pen 800, and when two conductors 810, 820 are stacked, When three conductors 810, 820, 830 are stacked, capacitances generated between the conductors 810, 820, 830, the display unit 151, or the touch sensor are different from each other.

That is, the capacitance generated between the conductors 810, 820, 830, the display unit 151, or the touch sensor is changed according to the number of the conductors 810, 820, 830 stacked on the tip of the stylus pen 800. The controller 180 detects such a change in capacitance to recognize a multi-level proximity touch.

19 is a conceptual diagram illustrating a stylus pen constituting another embodiment of the present invention.

As shown in FIG. 19, a variable capacitor 910 is provided inside the stylus pen 900. The variable capacitor 910 is also referred to as a variable capacitor or a varicon (varicon: variable condenser). In general, the variable capacitor 910 has a structure in which a rotating electrode plate is rotated between several sheets of high positive electrode plates to change the capacitance by changing the area of the counterpart. The variable capacitor 910 is provided at the tip of the stylus pen 900 to change the capacitance.

20 and 21 are explanatory diagrams showing an application mode of the stylus pen constituting the embodiment of the present invention.

The stylus pens 600, 700, 800, and 900 may change the capacitance generated between the stylus pens 600, 700, 800, and 900 and the touch sensor to input a multi-stage signal. That is, the stylus pens 600, 700, 800, and 900 change capacitances to enable different inputs, thereby enabling user input such as a two-button or three-button mouse.

For example, as shown in FIG. 20, when the stylus pen 600, 700, 800, 900 is brought into contact with the icon displayed on the display unit 151, the target icon is designated as if the left button of the mouse is clicked. In this state, if the capacitance is changed by moving the conductor 620 or the like, it is possible to perform another designated function such as right-clicking the mouse.

In addition, as shown in FIG. 21, when the 3D icons are displayed in a stacked state on the display unit 151, the 3D icon group is designated by contacting the stylus pens 600, 700, 800, and 900 with a target icon. If the electrostatic capacity is changed by moving the rolling element 620 or the like, it is possible to perform a scroll operation such as turning a wheel of a mouse.

The scope of the present invention is not limited to the embodiments described above, but is defined by the claims, and various changes and modifications can be made by those skilled in the art within the scope of the claims. It is self-evident.

1 is a block diagram showing the configuration of a portable terminal according to the present invention.

2A and 2B are perspective views each showing a configuration of a preferred embodiment of a portable terminal according to the present invention.

3A and 3B are front views showing one operating state of an embodiment of the present invention.

4 is a conceptual diagram illustrating a proximity depth of a proximity sensor in an embodiment of the present invention.

FIG. 5 is a conceptual view illustrating a control method for a touch operation in a form in which a pair of display units overlap in an embodiment of the present invention. FIG.

6A and 6B are conceptual views for explaining a proximity touch recognition region in which a proximity signal is detected and a haptic region in which a haptic effect is generated in an embodiment of the present invention.

7 is a conceptual diagram for explaining the capacitance change of the touch sensor in the embodiment of the present invention.

8 is a conceptual diagram illustrating an example of a capacitive touch sensor in an embodiment of the present invention.

Figure 9 is a perspective view showing an example of the channel arrangement of the capacitive touch sensor in an embodiment of the present invention.

10 is a perspective view for explaining a touch touch and a proximity touch in the embodiment of the present invention.

11 is a conceptual diagram showing an example of a resistive touch sensor in an embodiment of the present invention.

12 is a perspective view illustrating a state in which a channel group of a touch sensor is set in an embodiment of the present invention.

13 and 14 are cross-sectional views showing the main portion of the stylus pen constituting the embodiment of the present invention.

15 and 16 are cross-sectional views showing the main portion of the stylus pen constituting another embodiment of the present invention.

17 is an explanatory view showing a process of moving the conductor in the embodiment of the present invention in sequence.

18 and 19 are conceptual views showing a stylus pen constituting another embodiment of the present invention.

20 and 21 are explanatory views showing the utilization state of the stylus pen constituting the embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

100: terminal 151: display unit

600: stylus pen 610: housing

620: conductor 640: operating member

Claims (14)

A touch sensor; A stylus pen movably provided with a conductor; And a control unit for determining different signals according to the separation distance between the touch sensor and the conductor. The method of claim 1, The controller outputs different proximity touch signals according to a change in capacitance generated between the touch sensor and the conductor. The method of claim 1, The conductor is characterized in that the inside of the stylus pen is provided to move closer or away from the touch sensor. The method of claim 1, The stylus pen further comprises an operation member for controlling the movement of the conductor to be exposed to the outer surface of the stylus pen. The method of claim 4, wherein The operation member is a portable terminal, characterized in that it is moved in a direction perpendicular to the moving direction of the conductor is a button type for moving the conductor. The method of claim 5, The conductor and the operating member is provided with a corresponding interlocking slope and a driving slope formed to be inclined with respect to the moving direction of the conductor and the operating member, respectively, characterized in that the portable terminal. The method of claim 6, The inside of the stylus fan is a portable terminal, characterized in that the elastic member for restoring the conductor moved by the operating member to the original position. The method of claim 4, wherein The operating member is formed in a disk shape and a portable terminal, characterized in that provided in the wheel type for moving the conductor by rotation. The method of claim 8, A pinion gear is provided on an outer circumferential surface of the operation member, and one side of the conductor corresponding to the pinion gear is provided with a lag gear along the moving direction of the conductor. With touch screen; A stylus pen for changing capacitance generated on a surface of the touch screen; A portable terminal comprising a control unit for determining different proximity touch signal according to the change in capacitance. The method of claim 10, The stylus pen is a plurality of conductors that are stacked in order to change the capacitance is provided with a portable terminal. The method of claim 11, The plurality of conductors, characterized in that the portable terminal is provided to be movable separately inside the stylus pen. The method of claim 10, A portable terminal, characterized in that the front end of the stylus pen is provided with a variable capacitor for changing the capacitance. The method of claim 10, The touch screen outputs a proximity touch signal by dividing a change in capacitance generated between the conductor and the touch sensor according to a proximity depth of the proximity touch in two or more steps, and the controller receives the proximity touch signal. Portable terminal, characterized in that for determining the proximity of the multi-level touch.

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