KR100690767B1 - Mobile communication terminal - Google Patents

Abstract

The present invention relates to a mobile communication terminal, comprising: a cover unit having a display module and a receiver hole; A rib formed on an inner surface of the cover part to form a predetermined gap with the display module and surrounding the display module; A speaker disposed at a rear surface of the display module and outputting first and second output sounds having different phases from the front and rear surfaces, respectively; And a speaker coupled to a rear surface of the display module, the speaker being inserted into an inner surface thereof so that the first output sound is emitted to the receiver hole while the front and rear surfaces of the speaker are shielded from the gap. Provided is a mobile communication terminal including a metal frame having an opening formed therein.

Mobile communication terminal, Piezo speaker, Poron, Receiver hall, Metal frame, Shielding

Description

Mobile terminal {MOBILE COMMUNICATION TERMINAL}

1 to 3 illustrate a conventional mobile communication terminal,

1 is a side cross-sectional view showing an internal configuration of a conventional mobile communication terminal.

2 is a perspective view showing a conventional mobile communication terminal.

3 is a plan view illustrating a front surface of a cover unit of a conventional mobile communication terminal.

4 to 6 illustrate a mobile communication terminal according to an embodiment of the present invention.

Figure 4 is a side cross-sectional view showing the internal configuration of a mobile communication terminal equipped with a speaker device according to an embodiment of the present invention.

5 is a perspective view illustrating a mobile communication terminal according to an embodiment of the present invention.

6 is a perspective view illustrating a second modification of the shock absorbing member provided in the mobile communication terminal according to the embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

100: mobile communication terminal 110: cover part

111: display module 112: function keys

113: receiver hole 114: first printed circuit board

115: second printed circuit board 120: main body

121: key input unit 122: third printed circuit board

123: main printed circuit board 124: third printed circuit board

125: battery 200: antenna module

300: slide module 310: first slide rail

320: second slide rail 330: slider

400: speaker 410: buffer member

410a: second opening 410b: extension

411: exposed portion 420: partition wall

500: metal frame 500a: first opening

The present invention relates to a mobile communication terminal, and in particular, to provide a piezoelectric speaker (Piezoelectricity Speaker) that outputs a different output sound from the front and rear at the same time can provide a more faithful sound source because the output sound is separated from each other. The present invention relates to a mobile communication terminal.

In general, a mobile communication terminal is a wireless communication device that allows a user to carry a voice call with a specific person, and transmits a call message including a unique number of a receiver mobile communication terminal through a base station call channel to call a specific mobile communication terminal. After that, when a response is received from the mobile communication terminal, the system is configured to enable a call between the sender and the receiver.

In recent years, such mobile communication terminals have undergone many changes and developments in their functions and forms.In the functions of mobile communication terminals, only mobile phones can be used to play games, video on demand, electronic dictionary, and MP3. The latest mobile communication terminals capable of implementing the latest functions, such as players.

In addition, the mobile terminal has been developed from a bar-type mobile communication terminal to a flip-type, folder-type, and dual-foldable mobile terminal. In recent years, a slide type mobile communication terminal is developed in which a cover part of a mobile communication terminal is slidably moved. Recently, in the size of the mobile communication terminal, a small and thin mobile communication terminal has become the mainstream.

Herein, the structure of the slide-type mobile communication terminal which has been recently developed and released among the above-described mobile communication terminal will be described with reference to FIGS. 1 and 2.

1 to 3 illustrate a conventional slide type mobile communication terminal, FIG. 1 is a perspective view illustrating an appearance of a conventional slide type mobile communication terminal, and FIG. 2 is an internal configuration of a conventional slide type mobile communication terminal. 3 is a perspective view and a side cross-sectional view illustrating a dynamic speaker provided in a conventional slide type mobile communication terminal.

As shown in FIGS. 1 and 2, the conventional slide type mobile communication terminal 100 is a display module such as an LCD (Liquid Crystal Display; LCD, for convenience) " LCD " 111 and a function key 112 for inputting data for controlling various functions of the first printed circuit board 114 and the mobile communication terminal 100 to process electrical signals of the display module 111 and the The cover 110 is provided with a second printed circuit board 115 for processing an electrical signal of the function key 112.

Since the display module 111 is provided in the cover part 110, the display module 111 may be mounted on the inner surface of the cover part 110 so that the display module 111 may be mounted on the inner surface of the cover part 110. Ribs 116 are provided to protect the module 111 from shocks or vibrations from the outside.

Herein, the ribs are used to protect the display module 111 from shocks or vibrations transmitted when the mobile communication terminal 100 falls or a pressure from the outside is applied as described above. It is formed by a gap of about 0.15mm from each side of the.

The cover 110 includes a main printed circuit board 125 mounted with a plurality of chipsets (not shown) for controlling basic arithmetic functions of the mobile communication terminal 100 and electrical signals such as the display module 111. It is coupled to the main body portion 120 provided with the cover 110 is configured to slide the movement relative to the main body portion 120 to open and close the front of the main body portion 1200.

In addition, the front end of the cover 110, the receiver consisting of a speaker 400 for converting a communication signal or various sound signals into a voice signal that can be audible to the user of the mobile communication terminal 100 and output from the receiver The receiver hole 113 is provided at the upper end of the speaker 400 so that the voice signal to be output to the outside of the mobile communication terminal 100, the lower end of the front surface of the main body 120 in the voice call A microphone (not shown) is provided to demodulate a user's voice signal into an electrical signal.

Here, the speaker 400 constituting the receiver provided in the conventional mobile communication terminal 100 has a thin piezoelectric material therein for faithfully outputting audio signals contained therein while playing MP3s, VODs, and other videos. When the electric signal corresponding to the voice signal is applied to the piezoelectric material, a vibration and voice signal corresponding to the electric signal is output and a piezoelectric speaker 400 having a thickness of only about 1 mm is provided and moved. It provides a faithful sound source without reducing the thickness of the communication terminal.

In addition, the first output sound (A) having a first phase is output from the front of the piezo speaker 400 and the second output sound (B) having a second phase is output from the rear of the piezo speaker (400) to simultaneously output the different output sounds. The output can provide a richer volume.

In addition, the piezo speaker 400 is coupled to the rear surface of the display module 111 on the front surface of the piezo speaker 400 and at the same time performs a buffering function between the piezo speaker 400 and the display module 111. Shielding the first and second output sound (A, B) to prevent leakage between the display module 111 and the gap formed by the rib 116 existing in the portion overlapping the piezo speaker 400. The buffer member 410 is provided.

In addition, the cover unit 110 by shielding one side of the cover portion 110 that is connected to the upper front side of the speaker 400 and the rear of the piezo speaker 400 so that the receiver hole 113 is not included. The barrier rib 420 which prevents the second output sound B from being discharged to the receiver hole 113 and forms a sealed space P3 that can further amplify the vibration of the second output sound B. It is formed to include more.

Here, the buffer member 410 is coated with an adhesive material (not shown) on the front and rear of the speaker 400 to be coupled to the front of the speaker 400 and the rear of the display module 111 as shown in FIG. And the center of the piezo speaker 400 is composed of a Poron (Poron) is formed so that the exposed portion 411 is exposed.

However, in the speaker device provided in the conventional mobile communication terminal, the first and second output sounds A and B output from the front and rear of the piezo speaker 400 are simultaneously output to the receiver hole 113. There is a problem that the volume causes mutual interference and the volume is reduced.

In addition, the first and second output sound (B) output from the front and rear of the piezo speaker 400 is the speaker device is coupled to the rear of the display module 111 as shown in FIG. Although there is no leakage between the display module 111 and the gap formed by the rib in the portion overlapping the piezo speaker 400, the rib 116 provided adjacent to the upper surface of the display module 111 and Among the gaps formed between the display modules 111, the first and second output sounds A and B leak from the gaps X1 and X2 that are exposed to the outside because the porons are not mounted. There is a problem that the interference occurs and thereby the volume and sound quality output through the receiver hole 113 is reduced.

Therefore, the present invention is to solve the above problems, an object of the present invention, the output sound is output to have a mutually different phase from the front and rear of the speaker so that the output sound can be separated from each other mutual interference phenomenon The purpose is not to cause.

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In order to achieve the above object, a mobile communication terminal according to the present invention includes a cover unit having a display module and a receiver hole; A rib formed on an inner surface of the cover part to form a predetermined gap with the display module and surrounding the display module; A speaker disposed at a rear surface of the display module and outputting first and second output sounds having different phases from the front and rear surfaces, respectively; And a speaker coupled to a rear surface of the display module, the speaker being inserted into an inner surface thereof so that the first output sound is emitted to the receiver hole while the front and rear surfaces of the speaker are shielded from the gap. 1 includes a metal frame formed with an opening.

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Hereinafter, a mobile communication terminal according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

4 to 6 show a mobile communication terminal according to an embodiment of the present invention, Figure 4 is a side cross-sectional view showing the internal configuration of a mobile communication terminal equipped with a speaker device according to an embodiment of the present invention, 5 is a perspective view showing a mobile communication terminal according to an embodiment of the present invention.

As shown in FIG. 4, the mobile communication terminal 100 according to an exemplary embodiment of the present invention includes a cover 110 having a display module 111 and a receiver hole 113, and a rear surface of the display module 111. Coupled to the speaker 400, the first and second output sound (B) is output from the front and rear, respectively, and formed a predetermined gap with each side of the display module 111 and the display module 111 The rib 116 provided on the inner surface of the cover portion and the speaker 400 are inserted into the inner surface so as to protect the front and the rear of the speaker to be protected from the shock or vibration from the outside and the A metal frame 500 provided with a first opening 500a at a position corresponding to a position where the receiver hole 113 is provided so that a first output sound A may leak into the receiver hole 113, and The metal frame 500 on the display Stifle the rear of the module 111 is configured to include the first opening second opening the buffer member (410), (410a) is provided formed of a position and size corresponding to the (500a).

Speaker 400 of the speaker device of the mobile communication terminal 100 according to an embodiment of the present invention having the above-described configuration is provided with a thin piezoelectric material therein, the piezoelectric material corresponding to the voice signal When the signal is applied, the piezo speaker 400 for outputting vibration and voice signals corresponding to the electrical signal is provided.

Here, the piezo speaker 400 outputs the output sound of different phases from the front and the rear thereof, respectively, as shown in FIGS. 4 and 5, and the output sound has a first phase output from the front of the piezo speaker 400. A first output sound A and a second output sound B of a second phase output from the rear surface of the piezo speaker are divided and output.

And the buffer member 410 provided to the speaker device of the mobile communication terminal 100 according to an embodiment of the present invention as shown in Figure 5 buffer between the display module 111 and the metal frame 500 It has a buffering force and a shielding property so as to shield the gap between the metal frame 500 and the gap, and an adhesive material on the front and rear surfaces of the metal frame 500 to be mounted on the rear surface of the display module 111. (Not shown) is formed of the coated poron 410.

In addition, the cover unit 110 of the mobile communication terminal 100 is connected to the upper front side of the piezo speaker 400 and the rear of the piezo speaker 400 so that the receiver hole 113 is not included ( By shielding one side of the 110 to prevent the second output sound (B) from being discharged to the receiver hole 113, and at the same time to further amplify the vibration of the second output sound (B) (P3) It is formed further comprising a partition wall 420 forming a).

In the speaker device of the mobile communication terminal 100 according to the present invention having the above-described configuration, the piezo speaker 400 is provided with a metal frame 500 formed to be inserted into the inner surface of the piezo speaker 400. The first and second output sounds are output from the front of the piezo speaker 400 while preventing the second output sound (B) from being discharged to the receiver hole 113. (A) and the second output sound (B) output from the rear of the piezo speaker 400 is configured not to be mixed with each other.

In addition, as shown in FIG. 5, the metal frame 500 may be positioned at a position corresponding to the position where the receiver hole 113 is provided so that the first output sound A may leak into the receiver hole 113. Since the first opening 500a is provided, only the first output sound A may be selectively leaked into the receiver hole 113.

In addition, the mobile communication terminal 100 according to the present invention includes a front upper side of the speaker 400 and the speaker so that the receiver hole 113 formed on the upper side of the cover 110 of the mobile communication terminal 100 is not included. It further communicates with the rear surface of the piezo speaker 400 by further providing a partition wall 420 forming a hermetic sealing space P3 for shielding one side of the cover portion 110 in communication with the rear surface of the 400. A space P3 is formed to be enclosed by the partition wall 420, and the enclosed space P3 is configured to amplify the vibration of the second output sound B so that the user can listen to a richer volume.

In addition, the poron 410 is a portion of the gap between the upper surface of the display module 111 and the rib 116 provided adjacent to the upper surface of the display module 111 is not mounted to the poron 410. (X1, X2, see FIG. 3) may be provided in a changed form so as to further shield, it will be described with reference to FIG.

6 is a perspective view illustrating a second modification of the shock absorbing member provided in the mobile communication terminal according to the embodiment of the present invention.

As shown in FIG. 6, the second modified form of the buffer member 410 provided in the speaker device of the mobile communication terminal 100 according to the embodiment of the present invention is the upper side of the display module 111 and the display. In order to further shield an exposed portion (X1, X2, see FIG. 3) of the gap between the upper side of the module 111 and the rib 116 provided adjacent to the module 111, the poron 410 is not mounted. It may be configured to further include an extension portion 410b formed in a position and size corresponding to the exposed gap.

That is, since the poron 410 having the extension part 410b is provided on the front surface of the metal frame 500 and the rear surface of the display module 111, the upper surface of the display module 111 and the display module ( Due to the fact that the poron 410 is not mounted in the gap between the upper surface of the upper surface 111 and the rib 116 provided adjacent to it, the exposed portion (X1, X2, see FIG. 3) can be further shielded. While preventing the second output sound (B) from being discharged to the receiver hole 113, the first output sound (A) and the rear surface of the piezo speaker 400 output from the front of the piezo speaker 400. The second output sound (B) output from is configured not to be mixed with each other.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited thereto, and various modifications and changes can be made within the scope of the claims and the detailed description of the invention and the accompanying drawings. Naturally, it belongs to

As described above, the mobile communication terminal according to the present invention provides a speaker device capable of outputting different output sounds from each other while providing a piezoelectric speaker that outputs different output sounds from the front and rear surfaces. As a result, each output sound does not cause mutual interference, thereby providing a mobile communication terminal capable of providing a more faithful sound source.

In addition, when the second output sound output from the rear of the piezo speaker is coupled to the rear of the display module, the speaker of the gap formed between the rib provided adjacent to the upper surface of the display module and the display module is It provides a mobile communication terminal that can provide a more faithful sound source by forming so that the second output sound is not leaked into the gap exposed to the outside due to not being mounted.

Claims (6)

A cover unit having a display module and a receiver hole; A rib formed on an inner surface of the cover part to form a predetermined gap with the display module and surrounding the display module; A speaker disposed at a rear surface of the display module and outputting first and second output sounds having different phases from the front and rear surfaces, respectively; And Coupled to a rear surface of the display module, the first speaker corresponding to the receiver hole such that the first output sound is emitted to the receiver hole while the speaker is inserted into an inner surface thereof and the front and rear surfaces of the speaker are shielded from the gap; Mobile communication terminal comprising a metal frame formed with an opening. The method of claim 1, The speaker includes a piezoelectric material having a thin piezoelectric material therein, and when the electric signal corresponding to the voice signal is applied to the piezoelectric material, the piezoelectric speaker outputs vibration and voice signals corresponding to the electric signal. . The method of claim 1, And a buffer member fixing the metal frame to a rear surface of the display module and having a second opening formed at a position and a size corresponding to the first opening. The method of claim 3, The shock absorbing member has a buffering force and a shielding property to cushion the action between the display module and the metal frame and to shield the gap between the metal frame and the gap, and the front surface of the shock absorbing member to mount the metal frame on the rear surface of the display module. Mobile communication terminal, characterized in that the poron is coated with an adhesive material on the back. The method of claim 4, wherein The cover part shields one side surface of the cover part communicating with the upper side of the speaker and the rear surface of the speaker so that the receiver hole is not included, thereby preventing the second output sound from being discharged to the receiver hole and simultaneously the second output. A mobile communication terminal, characterized in that it further comprises a partition for forming a sealed space that can further amplify the sound vibration. The method of claim 5, The poron corresponds to the exposed gap to further shield a portion of the gap between the upper side of the display module and the rib provided adjacent to the upper side of the display module due to the poron not being mounted. The mobile communication terminal, characterized in that further comprises an extension formed in a position and size.

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