KR102084392B1 - Mobile communication device and method for driving the same - Google Patents

Abstract

The present invention provides a display module including a window in which an image is implemented; A housing surrounding an outer surface of the display module except a surface on which the window is formed; And an antenna disposed between the display module and the housing, wherein the antenna detects a touch input position by a first method of inducing electromagnetic force by a pen when a pen input exists in the window, and inputs a pen input into the window. The present invention relates to a mobile communication device characterized by short-range communication with a second method of inducing electromagnetic with other adjacent communication devices if not present.

Description

MOBILE COMMUNICATION DEVICE AND METHOD FOR DRIVING THE SAME}

The present invention relates to a mobile communication device having a wireless communication module, and more particularly to a mobile communication device having an antenna for a wireless communication module.

The communication device may be divided into a mobile communication device and a fixed communication device according to whether or not it is movable. Again, the mobile communication device can be divided into handheld mobile and vehicle mount mobile depending on whether the user is directly portable.

As mobile functions become more diversified and technology advances, such mobile devices are more than simple communication devices. They are multimedia devices with complex functions such as taking pictures and videos, playing music and video files, playing games and receiving broadcasts. It is implemented in the form of (Multimedia player).

In addition, as the demand for wireless mobile communication such as Long Term Evolution (LTE) and WCDMA / HSDPA or near field communication such as NFC (Near Field Communication), BT (Blue Tooth) and WIFI (Wireless Fidelity) increases, Mobiles employing supporting wireless communication modules are widely used.

Furthermore, in addition to the basic functions as a personal mobile communication device in addition to the basic functions as a personal mobile communication device, the conventional keypad is replaced with a touch screen using a pen or a finger instead of a data processing function such as an Internet function, text information, graphic utilization, and data editing. The input method is being used.

However, in order to employ a wireless communication module in the general mobile communication device described above, various antennas must be provided to transmit and receive radio frequency signals, and to use a touch screen input method, a touch sensing module or an antenna for touch sensing is added. It should be provided with.

Hereinafter, a general mobile communication device will be described with reference to FIG. 1.

FIG. 1 is a diagram illustrating a general mobile communication device 50 capable of detecting a pen input and wireless communication, and FIG. 2 is an exploded perspective view of the mobile communication device of FIG. 1.

The general mobile communication device 50 includes a display module 10, a pen touch sensing antenna 20, a wireless communication antenna 30, and a housing 40, as shown in FIG. 2.

First, the display module 10 is composed of a window and an outer surface.

Here, the window may be a reinforcement process as a part of an image in the display module to perform a cover function of the display module, or may further include tempered glass for a cover function. The outer surface may be in the form shown in FIG. 2 as a portion of the housing 30 wrapped for packaging the mobile communication device, but may be formed in any shape that can be utilized in the mobile communication device.

Next, the pen touch sensing antenna 20 functions to allow a user to check the coordinates of the touched area by flowing an induced current in response to a stylus or another pen-shaped input device, and to provide a stylus. Or a closed loop for electromagnetic induction in response to other pen-shaped input devices.

Next, the wireless antenna 30 is an antenna used for contactless short-range wireless communication between the mobile communication device or between the mobile communication device and another electronic device, based on electromagnetic induction between the wireless communication antennas in the adjacent magnetic field. It is a function of conveying the solution data and consists of a closed loop for electromagnetic induction.

However, in the case of the mobile communication device 50, in addition to the configuration for the communication device due to the increased functions to meet the needs of the user, the additional configuration such as the above-described pen touch sensing antenna 20 and wireless communication antenna 30, etc. This is inevitably required, and this may increase the volume or thickness of the mobile, which may cause a problem of inferior space utilization and portability of the mobile.

An object of the present invention is to provide a mobile communication device capable of minimizing an increase in volume or thickness.

According to an aspect of the present invention, there is provided a mobile communication device, including: a display module including a window in which an image is implemented; A housing surrounding an outer surface of the display module except for the window; And an antenna disposed between the display module and the housing, wherein the antenna detects a touch input position by a first method of inducing electromagnetic force by a pen when a pen input exists in the window, and inputs a pen input into the window. If it does not exist, it is characterized in that the short-range communication with a second method of inducing electromagnetic with other adjacent communication devices.

A method of driving a mobile communication device according to an embodiment of the present invention for achieving the above object, in the mobile communication device comprising a display module and a housing, and an antenna disposed between the display module and the housing,

Checking whether a pen input exists in a window in which an image of the display module is implemented; The antenna detecting a touch input position by a first method of inducing electromagneticity when a pen input is detected in the window; And performing a short range communication with a second method of inducing electromagnetic with other adjacent communication devices when the pen input is not detected in the window.

According to embodiments of the present invention, the pen touch sensing antenna and the wireless communication antenna in the mobile communication device can be utilized in common.

In addition, according to one embodiment of the present invention, it is possible to provide a mobile communication device with improved space utilization and portability of the terminal by minimizing the increase in volume or thickness.

In addition, according to one embodiment of the present invention, the radiation area of the antenna for wireless communication can be secured wider than before, thereby improving wireless communication efficiency.

1 is a view showing a general mobile communication device capable of detecting a general pen input and wireless communication;
2 is an exploded perspective view of the mobile communication device of FIG. 1;
3 is a diagram illustrating a general mobile communication device capable of detecting pen input and wireless communication according to an embodiment of the present invention; And
4 is an exploded perspective view of a mobile communication device according to an embodiment of the present invention;

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is a diagram illustrating a general mobile communication device capable of detecting pen input and wireless communication according to an embodiment of the present invention, and FIG. 4 is an exploded perspective view of the mobile communication device according to an embodiment of the present invention.

The mobile communication device 400 according to the present invention includes a display module 100, an antenna 200, and a housing 300.

First, the display module 100 includes a window 120 which is a display area where an image is implemented and an outer surface 110 which is a non-display area disposed on the outside of the display area, and the window 120 as the display area includes a display module ( It is formed on the upper surface of 100).

The window 120 occupies most of the upper surface of the display module 100. The button unit 130, the camera 140, and the speaker 150 are disposed on an outer surface adjacent to the window area 120.

First, the window 120 may be formed of an acrylic plate or a glass material as an image and a touch input contact surface. In particular, the window 120 formed of a glass material may include tempered glass, and the above-mentioned tempered glass may be quenched by compressed cooling air to compress and deform the glass surface, and to tensilely deform the inner glass or ion substitution. Contains chemically strengthened glass.

The button unit 130 is manipulated to receive a command for controlling the operation of the mobile communication device 400 and may be formed in plural. The plurality of button units may receive commands such as start, end, scroll, and the like, and receive commands such as adjusting the volume of sound output from the speaker 150 or switching to the touch recognition mode of the window 120. The button unit described above may also be formed on the rear and side surfaces of the display module 100.

The camera 140 may store a face of a person, an object, a landscape, or the like as an image. In the case of a video call, the camera 140 may take a picture of a user and transmit the image to a counterpart. The camera described above may be further disposed on the rear of the display module.

The speaker 150 functions to output sound, and may be used to implement a speakerphone mode during a call. The sound of the speaker can generally be adjusted using a button unit formed on the side of the display module 100.

Although not shown in FIG. 4 of the present invention, a circuit unit for driving a display and a wireless communication function is configured inside the display module, and an antenna for receiving a call or broadcast signal may be provided at a side thereof, and supplies power to a mobile communication device. Power supply for the purpose can be mounted.

In addition, the display module may further include a microphone for transmitting a user's voice to the microphone and a battery unit for storing power supplied to the mobile communication device. The battery unit may be separated from the display module and formed as individual components of the mobile communication device.

The display module may be formed of a plastic material to prevent signal attenuation of the antenna. In other words, in the present invention, the antenna can be used in various ways by using the magnetic flux generated by the method of inducing electromagnetic waves from the antenna, but the display module may be attenuated if the metallic material exists in the path of the magnetic flux. It may be formed of a plastic article.

In addition, the display module described above may be a flexible display module or a transparent display module, and in particular, may be a flexible display module or a transparent display module made of a plastic material.

Next, the antenna 200 is disposed between the display module 100 and the housing 300, and in particular, the antenna 200 uses the optical clear adhesive (OCA) to display the display module 100 or the housing. Characterized in that combined with (300).

In particular, the antenna may be mounted or coupled to an antenna mounting unit, which is an area corresponding to the window area.

Here, the antenna is made of a combination of a plurality of antenna patterns, in particular may be made of a plurality of closed loop coils. The antenna panel is made of any one of indium tin oxide (ITO), indium zinc oxide (IZO), AZO (Al-doped Zno), carbon nanotubes (CNT) and conductive polymers (PEDOT).

The plurality of closed loop coils may be configured in a rectangular, square, circular, or the like pattern, or may also be configured in a spiral pattern. However, the pattern of the plurality of closed loop coils according to the present invention is not limited thereto and may have various patterns.

The antenna according to the present invention may be an antenna for wireless communication, and may be any one of a near field communication (NFC) antenna, a blue tooth (BT) antenna, a wireless fidelity (WIFI) antenna, and a diversite antenna.

Hereinafter, the present invention will be described as an example of a near field communication (NFC) antenna among various antennas for wireless communication according to the present invention.

According to an embodiment of the present invention, when a pen input is present in a window area by using an NFC antenna, a touch input position is detected as a first method of inducing electromagnetic by the pen, and when there is no pen input in the window area, another adjacent communication is performed. Near field communication can be achieved with a second method of inducing electromagnetic with devices.

In other words, the NFC antenna may sense the touch input position by the pen or perform short-range communication with other adjacent communication devices.

In other words, both the method of detecting the touch input position by the pen and the method of short-range communication using the NFC antenna have a common point of using an electromagnetic induction method, and to detect the touch input position by the general NFC antenna and the general pen. Since the configuration and form of the antenna are similar, the NFC antenna may be used to detect a touch input position by a pen, and may perform short-range communication with other adjacent communication devices.

In addition, a general user does not have a large portion of time used for NFC near the time of using the mobile communication device, and while using NFC near field communication, the mobile communication device is used to detect a touch input position by a pen. In addition, since the frequency band used by each application method is different, it is possible to detect a touch input position by a pen using only an NFC antenna and to perform short-range communication with other adjacent communication devices.

Then, a first method and a second method of inducing electromagnetic using an NFC antenna will be described in detail.

The first method is a method of sensing a touch position by inducing electromagnetic between a pen and an antenna, which is a touch input means of a user, when a touch input exists in a window area by using a pen touch technology. The frequency band of the method for detecting the touch input position using the pen touch technology is characterized in that it is between 100kHz ~ 1MHz.

For reference, the pen touch technology refers to a touch screen technology that detects a touch position by using an input means realized by a stylus or another pen-shaped input device.

For example, in the pen touch technology, when a window area of a display module corresponding to an area where an antenna is formed is touched using a stylus or another pen-shaped input device including a resonance circuit, the pen touch technology is generated in the antenna. The electromagnetic field is reflected by the stylus or other pen-shaped input device and re-entered into the antenna in amplified form. Then, the reflected and amplified electromagnetic field causes a sensing signal to be applied to the antenna. Compared to the electromagnetic field, it operates on the principle of detecting the location where the change of capacitance occurred and recognize it as the touch position.

Since the pen touch technology has an advantage of excellent position detection accuracy and resolution, a communication device (for example, a mobile phone or a wireless handheld communication) is used together with a finger touch technology that uses a finger to detect a touch position. Device) is widely used as a technology for detecting a user's touch position.

The second method is a method of short-range communication by inducing electromagnetic with other adjacent communication devices using NFC technology. The frequency band of the method of short range communication using NFC technology is characterized in that the 13.56MHz.

For reference, NFC technology is a non-contact short range wireless communication module using 13.56Mz frequency band as a short range wireless communication electronic tag, and refers to a technology for transmitting data between terminals at a close distance of 10 cm.

NFC is one of the technologies that is widely used in supermarkets and general stores to transmit goods information, travel information for visitors, transportation, access control locks, business cards, etc., as well as mobile payments, as well as file transfer. It is a function of transmitting and receiving short-range information based on), and it can also transmit a photo, a business card, a file, a map, a website, etc. from one phone to another as well as mobile payment.

As described above, the NFC antenna may be classified into a primary coil or a secondary coil, respectively, in order to perform a wireless power transmission and / or a wireless communication function between the mobile communication device and another adjacent mobile communication device.

In this case, the voltage induced by the antenna acting as the secondary coil is determined by Faraday's law and Lenz's law. Therefore, in order to obtain a high voltage signal, the higher the amount of magnetic flux formed in the antenna coil Do. The amount of magnetic flux increases as the amount of soft magnetic material included in the antenna coil increases, and as the material permeability increases. In particular, in order to focus wireless electromagnetic waves generated from the reader antenna to the tag antenna because it is essentially non-contact data communication, an absorber sheet made of a high permeability magnetic material may be further provided.

For reference, the antenna applicable to the present invention is not limited to a near field communication (NFC) antenna, and in another embodiment of the present invention, in addition to the NFC antenna, a touch input by a pen may be utilized by utilizing the above-described antennas for wireless communication. You can also think about it.

In the present invention, as described above, the antenna for wireless communication can be utilized as an antenna for pen touch sensing and an antenna for wireless communication in the mobile communication device. Accordingly, the mobile communication improves the space utilization and portability of the terminal by minimizing the increase in volume or thickness. A device can be provided. In addition, according to one embodiment of the present invention, the radiation area of the antenna for wireless communication can be secured wider than before, thereby improving wireless communication efficiency.

Next, the housing 300 may be divided into an upper housing and a lower housing of the display module 100, but the upper housing and the lower housing may be integrally formed as shown in FIG. 4. According to an embodiment of the present invention, the housing surrounding the outer surface of the display module except the window is called the upper housing, and the housing surrounding the opposite surface on which the window of the display module is formed is called the lower housing. Let's do it. In addition, a portion in which the side of the display module is housed by the combination of the upper housing and the lower housing will be referred to as a side housing.

The upper housing houses the upper outer surface of the display module as shown in FIG. 4, and the upper housing includes a plurality of openings for exposing the button portion 130 of the display module, and for exposing the window 120. And a display opening, a camera and a hall, and a speaker hall.

The housing according to an embodiment of the present invention may further include a hole for exposing the microphone in any one of the upper, lower, and side surfaces.

Although not shown in FIG. 4, the lower housing may include an antenna mounting unit for mounting the antenna 200 and a battery mounting unit for mounting the battery.

In this case, the shape of the antenna mounting portion may be formed in an area corresponding to the window of the display module and may be formed larger than the window area. In addition, the battery mounting part of the lower housing may be formed in an area where the antenna mounting part is not formed in order to minimize the electromagnetic effects of the battery and the antenna.

Hereinafter, a driving method of a mobile communication device including a display module, a housing, and an antenna according to an embodiment of the present invention will be described with reference to FIG. 4. For reference, the antenna is disposed between the display module and the housing, and is particularly mounted in an area corresponding to the window area of the housing.

According to an embodiment of the present invention, a method for driving a mobile communication device first checks whether a pen input exists in a window in which an image of a display module is implemented.

If the pen input is detected in the window, the antenna detects the touch input position as a first method of inducing electromagnetic. The first method is a method of sensing a touch position by inducing electromagnetic between a pen and an antenna, which is a touch input means of a user, when a touch input exists in a window area by using a pen touch technology. The frequency band of the method for detecting the touch input position using the pen touch technology is characterized in that it is between 100kHz ~ 1MHz.

If the pen input is not detected in the window, the antenna performs a short range communication with a second method of inducing electromagnetic with other adjacent communication devices. The second method is a method of short-range communication by inducing electromagnetic with other adjacent communication devices using NFC technology. The frequency band of the method of short range communication using NFC technology is characterized in that the 13.56MHz.

In the present invention, as described above, the antenna in the mobile communication device can be used in common using a pen touch sensing antenna and an antenna for wireless communication. Accordingly, the mobile communication improves the space utilization and portability of the terminal by minimizing the increase in volume or thickness. A device can be provided. In addition, according to one embodiment of the present invention, the radiation area of the antenna for wireless communication can be secured wider than before, thereby improving wireless communication efficiency.

Those skilled in the art to which the present invention pertains will understand that the above-described present invention may be implemented in other specific forms without changing the technical spirit or essential features.

Therefore, it is to be understood that the embodiments described above are exemplary in all respects and not restrictive. The scope of the present invention is shown by the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts should be construed as being included in the scope of the present invention. do.

100: display module 110: outer surface
120: window 130: button portion
140: camera 150: speaker
200: antenna 300: housing
400: mobile communication device

Claims (15)

A display module including a window in which an image is implemented;
A housing surrounding an outer surface of the display module except a surface on which the window is formed; And
An antenna disposed between the display module and the housing;
The antenna detects a touch input position as a first method of inducing electromagnetic by a pen when a pen input is present in the window, and induces electromagnetic with adjacent communication devices different from the pen when there is no pen input in the window. A mobile communication device comprising near field communication in a second method.
The method of claim 1,
And the antenna comprises a plurality of closed loop coils.
The method of claim 1,
And the antenna is one antenna mounted in an area corresponding to the entire window of the housing.
The method of claim 1,
The antenna is a mobile communication device, characterized in that the NFC (Near Field Communication) antenna.
The method of claim 1,
And a frequency band of a method of detecting a touch input position by the first method is between 100 kHz and 1 MHz.
The method of claim 1,
And a frequency band of the method for short-range communication in the second method is 13.56 MHz.
The method of claim 1,
The display module is a mobile communication device, characterized in that made of a plastic material.
The method of claim 1,
And the display module is a flexible display module or a transparent display module.
A mobile communication device comprising a display module and a housing, and an antenna disposed between the display module and the housing,
Checking whether a pen input exists in a window in which an image of the display module is implemented;
The antenna detecting a touch input position by a first method of inducing electromagnetic force by a pen when a pen input is detected in the window; And
And if the antenna does not detect a pen input in the window, performing a short range communication with a second method of inducing electromagnetic with adjacent communication devices different from the pen.
The method of claim 9,
And the antenna comprises a plurality of closed loop coils. The method of claim 9,
And the antenna is one antenna mounted in an area corresponding to the entire window of the housing.
The method of claim 9,
The antenna is a method of driving a mobile communication device, characterized in that the NFC (Near Field Communication) antenna.
The method of claim 9,
And a frequency band of a method for detecting a touch input position by the first method is between 100 kHz and 1 MHz.
The method of claim 9,
The frequency band of the method for short-range communication in the second method is 13.56MHz, the driving method of the mobile communication device.
The method of claim 1,
And a first frequency band of the method of detecting a touch input position by the first method and a second frequency band of the method of short range communication by the second method are different from each other.

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