KR102468535B1 - Electronic apparatus - Google Patents

Abstract

The present application provides an electronic device capable of outputting accurate and uniform sound through vibration of a display panel without a separate sound device, and the electronic device according to the present application vibrates a display module having a display panel and a touch panel. sound is output to the front of the display panel, and the sound can be equalized based on a user's touch on the display module.

Description

Electronic equipment {ELECTRONIC APPARATUS}

This application relates to electronic devices.

In general, electronic devices such as televisions, monitors, notebook computers, smart phones, tablet computers, electronic pads, wearable devices, watch phones, portable information devices, navigation devices, or vehicle control display devices are display devices for displaying images and images. and a sound device for outputting sound related to the sound.

However, in a general display device, since the sound output from the sound device travels to the rear or lower part of the display panel, the sound quality is degraded due to interference between sounds reflected from the wall or the ground, which makes it difficult to accurately transmit the sound to the viewer. There is a problem that the sense of immersion is lowered.

A technical problem of the present application is to provide an electronic device capable of outputting accurate and uniform sound through vibration of a display panel without a separate sound device.

An electronic device according to the present application may vibrate a display module having a display panel and a touch panel to output sound to the front of the display panel, and equalize the sound based on a user's touch on the display module.

An electronic device according to the present application includes a vibration module for vibrating a display module according to a vibration driving signal; and a driving circuit unit generating an audio signal based on an audio source and generating a vibration driving signal by amplifying the audio signal. The driving circuit unit may equalize the audio signal based on a user's touch.

An electronic device according to the present application includes a vibration module for vibrating a display module according to a vibration driving signal; and a driving circuit unit generating an audio signal based on an audio source and generating a vibration driving signal by amplifying the audio signal, wherein the driving circuit unit generates a vibration signal according to a touch force level based on a touch force applied to the display module according to a user's touch. Audio signals can be equalized.

An electronic device according to the present application includes a housing for accommodating a display module; a vibration module that vibrates the display module according to the vibration driving signal; a sound receiving module disposed in the housing and generating a sound receiving signal by receiving sound output by vibration of the display panel; and a driving circuit unit generating an audio signal based on an audio source and generating a vibration driving signal by amplifying the audio signal, wherein the driving circuit unit equalizes the audio signal based on a sound reception signal that is changed according to a user's touch. .

In the present application, the driving circuit synthesizes the audio signal or the vibration drive signal with the high-frequency identification signal and provides it to the vibration module, and generates the audio signal based on the level change of the high-frequency identification signal included in the sound reception signal provided from the sound reception module. You can equalize.

According to the present application, accurate sound can be output without a separate sound device or speaker by outputting sound to the front of the display panel according to the vibration of the display module, and through this, the viewer's immersion can be increased.

According to the present application, by equalizing sound based on a user's touch on a display module, changes in sound caused by a user's touch can be prevented and more accurate and uniform sound can be provided to the user even when the user touches.

In addition to the effects of the present application mentioned above, other features and advantages of the present application will be described below, or will be clearly understood by those skilled in the art from such description and description.

1 is a schematic cross-sectional view of an electronic device according to an example of the present application.
FIG. 2 is a rear view of the display panel shown in FIG. 1 .
FIG. 3 is a diagram for explaining the driving circuit shown in FIG. 1 .
4 is a schematic cross-sectional view of an electronic device according to another example of the present application.
FIG. 5 is a rear view of the display panel shown in FIG. 4 .
FIG. 6 is a diagram for explaining the driving circuit shown in FIG. 4 .
7 is a schematic cross-sectional view of an electronic device according to another example of the present application.
FIG. 8 is a diagram for explaining the driving circuit shown in FIG. 7 .
FIG. 9 is a diagram for explaining a modified example of the driving circuit shown in FIG. 7 .
10 is a waveform diagram illustrating a change in a high-frequency identification signal synthesized with a vibration driving signal according to a user's touch in an electronic device according to another example of the present application.
11 is a flowchart illustrating a sound output method of an electronic device according to an example of the present application.
12 is a flowchart illustrating a sound output method of an electronic device according to another example of the present application.
13 is a flowchart illustrating a sound output method of an electronic device according to another example of the present application.
FIG. 14 is a flowchart illustrating a method for outputting a sound of an electronic device including a driving circuit according to a modified example of the present application shown in FIG. 9 .

Advantages and features of the present application, and methods of achieving them, will become clear with reference to examples described below in detail in conjunction with the accompanying drawings. However, the present application is not limited to the examples disclosed below and will be implemented in a variety of different forms, and only the examples of the present application make the disclosure of the present application complete, and common in the technical field to which the invention of the present application belongs. It is provided to completely inform those who have knowledge of the scope of the invention, and the invention of this application is only defined by the scope of the claims.

Since the shape, size, ratio, angle, number, etc. disclosed in the drawings for explaining an example of the present application are exemplary, the present application is not limited to the matters shown. Like reference numbers designate like elements throughout the specification. In addition, in describing examples of the present application, if it is determined that a detailed description of related known technologies may unnecessarily obscure the subject matter of the present application, the detailed description will be omitted.

When 'includes', 'has', 'consists', etc. mentioned in this specification is used, other parts may be added unless 'only' is used. In the case where a component is expressed in the singular, the case including the plural is included unless otherwise explicitly stated.

In interpreting the components, even if there is no separate explicit description, it is interpreted as including the error range.

In the case of a description of a positional relationship, for example, 'on top of', 'on top of', 'at the bottom of', 'next to', etc. Or, unless 'directly' is used, one or more other parts may be located between the two parts.

In the case of a description of a temporal relationship, for example, 'immediately' or 'directly' when a temporal precedence relationship is described in terms of 'after', 'following', 'next to', 'before', etc. It can also include non-continuous cases unless is used.

Although first, second, etc. are used to describe various components, these components are not limited by these terms. These terms are only used to distinguish one component from another. Therefore, the first component mentioned below may be the second component within the technical spirit of the present application.

The term “at least one” should be understood to include all possible combinations from one or more related items. For example, "at least one of the first item, the second item, and the third item" means not only the first item, the second item, or the third item, respectively, but also two of the first item, the second item, and the third item. It may mean a combination of all items that can be presented from one or more.

Each feature of the various examples of the present application can be partially or entirely combined or combined with each other, technically various interlocking and driving are possible, and each example can be implemented independently of each other or can be implemented together in a related relationship. .

Hereinafter, an example of an electronic device according to the present application will be described in detail with reference to the accompanying drawings. In adding reference numerals to components of each drawing, the same components may have the same numerals as much as possible even if they are displayed on different drawings.

1 is a schematic cross-sectional view of an electronic device according to an example of the present application, and FIG. 2 is a rear view of the display panel shown in FIG. 1 .

Referring to FIGS. 1 and 2 , the electronic device according to an example of the present application vibrates the display module 100 having the display panel 110 and the touch panel 130 to generate sound toward the front of the display panel 110 . output, and equalizes the sound based on the user's touch on the display module 100. Here, equalizing is a signal processing technology that adjusts the volume level for each frequency by adjusting the frequency characteristics of the audio signal. It means the process of correcting the signal for each frequency band.

An electronic device according to this example includes a display module 100 , a display panel 110 , and a touch panel 130 .

The display panel 110 may be a light emitting display panel or a flexible light emitting display panel. The display panel 110 according to an example may include a pixel array substrate having a pixel array composed of a plurality of pixels and an encapsulation layer encapsulating the pixel array.

Each of the plurality of pixels is provided in a pixel area defined by pixel driving lines. Further, each of the plurality of pixels may include a pixel circuit having at least two thin film transistors and at least one capacitor, and a light emitting element that emits light by current supplied from the pixel circuit. As an example, the light emitting device may include an organic light emitting layer or a quantum dot light emitting layer. As another example, the light emitting device may include a micro light emitting diode.

The encapsulation layer protects the thin film transistor and the light emitting element from external impact and prevents moisture from penetrating into the light emitting element. Also, the encapsulation layer may be replaced with an encapsulation substrate attached to the pixel array substrate through a filler surrounding the pixel array. When the filler is formed of a transparent filler, the encapsulation substrate may be a transparent encapsulation substrate.

The touch panel 130 is provided on the display panel 110 and includes a touch electrode layer having touch electrodes for sensing a user's touch on the display module 100 . The touch electrode layer senses a change in capacitance of the touch electrode according to a user's touch. For example, the touch electrode layer includes a touch electrode for sensing a user's touch according to a mutual capacitance method or a self capacitance method.

And, the display module 100 may further include a polarizing film 150 disposed on the touch panel 130 . The polarizing film 150 is attached to the upper surface of the touch panel 130 via a film attachment member. The polarizing film serves to improve visibility and contrast ratio of the display panel 110 by changing external light reflected by thin film transistors and/or pixel driving lines provided on the pixel array substrate into a circularly polarized state. Also, the polarizing film 150 may be disposed between the encapsulation layer of the display panel 110 and the touch panel 130 .

Also, the display module 100 may further include a barrier layer interposed between the encapsulation layer of the display panel 110 and the touch panel 130 . The barrier layer may serve to prevent moisture or the like from penetrating toward the pixel array.

Also, the display module 100 may further include a color filter layer provided on the upper surface of the encapsulation layer of the display panel 110 . The color filter layer may include a color filter that is provided to overlap each of a plurality of pixels and transmits only wavelengths of colors set for each of a plurality of pixels.

An electronic device according to the present example includes a vibration module 200 and a driving circuit unit 300 .

The vibration module 200 is coupled to the rear surface of the display module 100, that is, the rear surface of the display panel 110, and vibrates the display module 100 according to a vibration drive signal, thereby causing the display panel to vibrate. Sound is output in the forward direction (Z) of (110). The vibration module 200 according to an example may include first and second vibration elements 210 and 230 coupled to the rear surface of the display module 100, that is, the rear surface of the display panel 110.

The first vibration element 210 vibrates the first area A1 of the display module 100 according to the vibration driving signal provided from the driving circuit unit 300 . The first vibration element 210 may be formed to have a certain length and a certain width. The first vibration element 210 according to an example is coupled to the rear surface of the display module 100, that is, to the first area A1 defined on the rear surface of the display panel 110 via an adhesive member. Here, the first area A1 is the central portion CP of the display module 100 and one end ( 110a) can be defined between. For example, the first area A1 may be defined as an edge area at one side of the display module 100 based on the longitudinal direction (or horizontal direction) X of the display module 100 . Also, the longitudinal direction of the first vibrating element 210 may be parallel to the width direction (or vertical direction) (Y) of the display module 100 .

The second vibrating element 230 vibrates the second area A2 of the display module 100 according to the vibration driving signal provided from the driving circuit 300 . The second vibration element 230 may be formed to have a certain length and a certain width. The second vibration element 230 according to an example is coupled to the second area A2 defined on the rear surface of the display module 100, that is, the rear surface of the display panel 110, via an adhesive member. Here, the second area A2 is the center CP of the display module 100 and the other end ( 110b) can be defined between. For example, the second area A2 may be defined as an edge area on the other side of the display module 100 based on the longitudinal direction (or horizontal direction) X of the display module 100 . Also, the longitudinal direction of the second vibrating element 230 may be parallel to the width direction (or vertical direction) (Y) of the display module 100 . The second vibrating element 230 may be disposed symmetrically with the first vibrating element 210 based on the center CP of the display module 100 .

The adhesive member may be a double-sided tape or a naturally curable adhesive. Here, the adhesive member may be made of a thermosetting adhesive or a photocurable adhesive. In this case, since the characteristics of the vibration element may be deteriorated by heat in the curing process of the adhesive member, it may be made of a double-sided tape or a natural curable adhesive.

Each of the first vibration element 210 and the second vibration element 230 according to an example includes a piezoelectric material layer having a piezoelectric effect, a first electrode disposed on the front surface of the piezoelectric material layer, and a piezoelectric material layer. It may include a second electrode disposed on the rear surface.

The piezoelectric material layer includes a piezoelectric material that generates vibrations by an electric field. Here, in the piezoelectric material, a potential difference is generated by dielectric polarization due to a change in the relative position of positive (+) ions and negative (-) ions while pressure or torsion is applied to the crystal structure by an external force. It has a characteristic that vibration is generated by an electric field. The piezoelectric material of the vibration element 310 according to an example may include any one of a ceramic material, a polymer material, and a semiconductor material, or a mixture of two or more materials, and a ceramic piezoelectric material having a wide frequency response characteristic. It can be done. Here, the ceramic piezoelectric material may include lead zirconate titanate (PZT) or barium carbonate (BaTiO3), the polymeric piezoelectric material may include polyvinylidene difluoride (PVDF), and the like, and the semiconductor piezoelectric material may include zinc oxide (ZnO) and the like. Cadmium sulfide (CdS) and the like may be included.

The first electrode and the second electrode are provided to overlap each other with a piezoelectric material layer interposed therebetween. Also, the first electrode and the second electrode may be made of an opaque metal material having relatively low resistance and excellent heat dissipation characteristics, but are not limited thereto, and may be made of a transparent conductive material or a conductive polymer material in some cases.

The driving circuit unit 300 generates an audio signal based on an audio source, amplifies the audio signal to generate a vibration driving signal, and vibrates the vibration module 200 according to the generated vibration driving signal. In addition, the driving circuit unit 300 equalizes the audio signal (or vibration driving signal) based on the user's touch to uniformly adjust the sound that is changed according to the user's touch. For example, when a user plays a game or makes a phone call through a game application of an electronic device, pressure is applied to the display panel 110, and as a result, the tone of sound output according to the vibration of the display panel 110 is changed. change, the driving circuit unit 300 equalizes the audio signal (or vibration driving signal) based on the user's touch to prevent or compensate for the change in sound caused by the pressure of the user's touch, thereby providing a uniform sound even when the user's touch is applied. can be provided to the user.

The driving circuit unit 300 according to an example vibrates the vibration module 200 that equalizes an audio signal (or vibration driving signal) based on a user touch, that is, the first vibration element 210 and the second vibration element 230. By doing so, it is possible to prevent or correct a change in sound due to a pressure according to the user's touch, and provide a uniform sound to the user even when the user touches.

The driving circuit unit 300 according to another example vibrates the first vibration element 210 according to first touch information (or first touch event) on the first area A1 of the display module 100 based on a user touch. Equalizing the first audio signal (or first vibration drive signal) to vibrate the second vibration element 230 according to the second touch information (or second touch event) on the second area of the display module 100 The first vibration element 210 and the second vibration element 230 are individually vibrated by equalizing the second audio signal (or the second vibration drive signal) for preventing a change in sound due to the pressure caused by the user's touch. It is possible to provide a uniform sound to the user even when the user touches by adjusting or correcting the sound.

The electronic device according to the present example further includes a housing 400 , a cover window 500 , and a rear cover 600 .

The housing 400 accommodates the display module 100 . The housing 400 according to an example includes a housing sidewall 410 and a housing plate 430 .

The housing sidewall 410 is formed in a frame shape to have a display storage space in which the display module 100 is accommodated, and surrounds each side of the display module 100 . The housing sidewall 410 supports the cover window 500 and the rear cover 600 . The housing sidewall 410 includes an upper stepped portion 411 concavely provided from the upper inner surface and supporting the cover window 500, and a lower stepped portion 411 concavely provided from the lower inner surface and supported the rear cover 600 ( 413).

The housing plate 430 is connected to the inner surface of the housing sidewall 410 to cover the rear surface of the display module 100 . A display accommodating space surrounded by a housing sidewall 410 is provided on the front side of the housing plate 430, and on the back side of the housing plate 430, an electronic device including a circuit configuration such as a driving circuit unit 300 and a battery, etc. A circuit accommodating space in which peripheral circuits and the like of the device are accommodated is provided. To this end, the housing plate 430 may be spaced apart from the rear surface of the display module 100 and may be spaced apart from the rear cover 600 .

The housing 400 further includes a vibration element placement unit 435 provided on the housing plate 430 .

The vibration element exposure part 435 is formed to pass through each of the first and second regions of the housing plate 430 overlapping each of the first and second regions A1 and A2 of the display module 100 . do. Accordingly, each of the first vibration element 210 and the second vibration element 230 coupled to each of the first area A1 and the second area A2 of the display module 100 is a vibration element exposed portion 435 It is exposed to the rear surface of the housing plate 430 through. In addition, lower portions of each of the first vibration element 210 and the second vibration element 230 may be inserted into the vibration element exposed portion 435 .

The vibration element exposed part 435 may be defined as a vibration space for vibration of each of the first vibration element 210 and the second vibration element 230 coupled to the display module 100, and the housing plate 430 When the distance between the and the rear surface of the display module 100 is greater than the vibrating space, it may be omitted, but may be formed to slim down the electronic device.

The cover window 500 is coupled to the housing 400 to support the display module 100 . For example, the cover window 500 supports the display module 100 and is supported by the upper stepped portion 411 provided on the housing sidewall 410 of the housing 400 . The cover window 500 according to an example may be made of glass or a tempered glass material. For example, the cover window 500 may have any one of sapphire glass and gorilla glass, or a bonding structure thereof. The cover window 500 may be attached to the front surface of the display module 100 via an optical adhesive member. In this case, the optical adhesive member may be an optically clear adhesive (OCA) or a pressure sensitive adhesive (PSA).

The cover window 500 covers the non-display area other than the display area of the display module 100 . The cover window 500 according to an example is provided in a transparent area overlapping the display area of the display module 100, a light blocking area overlapping the non-display area of the display module 100, and a light blocking area. A design layer covering the non-display area may be included.

A buffer member 420 may be interposed between the cover window 500 and the upper stepped portion 411 of the housing 400 . The buffer member 420 may include double-sided tape or a foam pad. The buffer member 420 buffers an impact applied to the cover window 500 and prevents vibration of the display module 100 from being transmitted to the housing 400 .

The rear cover 600 is coupled to the housing 400 and covers the rear surface of the housing 400 . For example, the rear cover 600 covers a circuit accommodating space provided on the rear surface of the housing 400 . To this end, the rear cover 600 is coupled to the lower stepped portion 413 provided on the housing sidewall 410 of the housing 400 . The rear cover 600 according to an example may be made of the same material as the rear cover 600 or a different glass or tempered glass material from the rear cover 600 . For example, the rear cover 600 may have any one of sapphire glass and gorilla glass or a bonding structure thereof.

FIG. 3 is a diagram for explaining the driving circuit shown in FIG. 1 .

3 and FIGS. 1 and 2, the driving circuit unit 300 according to the present example includes a panel driving circuit 310, a touch driving circuit 330, a control unit 350, an audio processing unit 370, and a memory 390. ).

The panel driving circuit 310 is mounted on the display panel 110 or a circuit board to display an image on the display panel 110 . The panel driving circuit 310 is connected to a pad provided on the pixel array substrate of the display panel 110 and supplies a driving signal and a data signal to the pixel driving lines under the control of the controller 350 to output an image to each pixel. display The panel driving circuit 310 according to an example may be formed of an integrated circuit.

The touch driving circuit 330 is mounted on the display panel 110 or a circuit board and connected to the touch electrode layer of the touch panel 130 . The touch driving circuit 330 senses a user's touch through touch electrodes provided on the touch electrode layer. The touch driving circuit 330 according to an example supplies a touch driving signal to each of the touch electrodes, senses a capacitance change of the touch electrodes to generate a touch sensing signal (or touch raw data), and transmits the generated touch sensing signal to It is provided to the controller 350. That is, the touch driving circuit 330 may generate an analog sensing signal by sensing a capacitance change of the touch electrodes and convert the generated analog sensing signal into a digital signal to generate a touch sensing signal.

The touch driving circuit 330 may be embedded in the panel driving circuit 310 . In this case, the touch driving circuit 330 and the panel driving circuit 310 may be configured as a single integrated driving integrated circuit and mounted on the display panel 110 or a circuit board.

The controller 350 generates digital image data and provides it to the panel driving circuit 310 . In addition, the controller 350 detects touch information based on the touch sensing signal provided from the touch driving circuit 330, and generates an equalizing control signal according to the detected touch information while executing a corresponding application according to the detected touch information. generate For example, the controller 350 calculates a touch location including an X-axis coordinate and a Y-axis coordinate based on the touch sensing signal, and executes a corresponding application corresponding to the calculated touch location.

The control unit 350 according to an example generates an equalizing control signal for adjusting a volume level for each frequency of sound output through vibration of the display panel 110 based on touch information.

As an example, the control unit 350 generates audio for commonly vibrating each of the first vibration element 210 and the second vibration element 230 of the vibration module 200 when touch information is generated regardless of the calculated touch position. An equalizing control signal for equalizing the signal (or vibration driving signal) may be generated. For example, when touch information is generated, the control unit 350 may generate an equalizing control signal for increasing the vibration intensity of each of the first and second vibration elements 210 and 230 . For example, when the user's touch location overlaps with the first vibration element 210 (or the second vibration element 230), the vibration of the first vibration element 210 (or the second vibration element 230) As the intensity decreases, the volume of the sound output according to the vibration of the display panel 110 decreases. To compensate for this, the control unit 350 controls the vibration of the first vibration element 210 (or the second vibration element 230). A first equalizing control signal (or a second equalizing control signal) for increasing the vibration intensity is generated.

As another example, the control unit 350, based on the calculated touch position, a first equalizing control signal for equalizing the first audio signal (or first vibration drive signal) for vibrating the first vibration element 210, and a second equalizing control signal for equalizing the second audio signal (or second vibration driving signal) for vibrating the second vibration element 230. In this case, the controller 350 extracts equalizing setting information mapped to the touch position from the equalizing setting information for each touch position stored in the memory 390, and based on the extracted equalizing setting information, a first equalizing control signal and a second equalizing control signal. An equalizing control signal may be generated. For example, when the touch position is an area overlapping with the first vibration element 210 (or the second vibration element 230), the controller 350 controls the first vibration element 210 (or the second vibration element ( 230) to generate a first equalizing control signal (or a second equalizing control signal) for increasing the vibration intensity, and to maintain the vibration intensity of the second vibration element 230 (or the first vibration element 210). It is possible to generate a second equalizing control signal (or first equalizing control signal) for reducing the In addition, the controller 350 controls the first vibration element 210 when the user's touch position overlaps the area between the area overlapping the first vibration element 210 and the middle area overlapping the second vibration element 230. ) and the second equalizing control signal and the second equalizing control signal for reducing the vibration intensity of each of the vibration elements 230 at the same ratio. For example, when the touch position overlaps the middle region, the vibration of the first vibration element 210 and the vibration of the second vibration element 230 are separated from each other, and thus the sound output according to the vibration of the display panel 110 Since the volume of is increased, in order to compensate for this, the control unit 350 generates a first equalizing control signal and a second equalizing control signal for reducing the vibration intensity of each of the first vibration element 210 and the second vibration element 230. generate

The audio processing unit 370 generates an audio signal based on an audio source and amplifies the audio signal to generate a vibration drive signal, and transmits the generated vibration drive signal to the vibration module 200, that is, the first vibration element 210 and It is supplied to the second vibration element 230. Also, the audio processing unit 370 performs equalization on the audio signal (or vibration driving signal) based on the equalizing control signal provided from the control unit 350 . The audio processor 370 according to an example includes an audio generator 371 and an audio amplifier 373 .

The audio generator 371 generates an audio signal from an audio source under the control of the controller 350 . Also, the audio generating unit 340 performs equalization on an audio signal based on an equalizing control signal provided from the control unit 350 . This audio generating unit 371 may be expressed as a sound card.

The audio generator 371 according to an example generates an audio signal from an audio source, performs equalization on the audio signal according to an equalizing control signal provided from the control unit 350, and converts the equalized audio signal to an audio amplifier unit ( 373) is provided. At this time, the audio generator 371 increases the volume level of each frequency band of the audio signal according to the equalizing control signal so that the audio signal can have a uniform sound in all frequency bands. To this end, the audio generating unit 371 according to an example may include an audio signal generating unit generating an audio signal from an audio source and an equalizer equalizing the audio signal according to an equalizing control signal.

The audio generating unit 371 according to another example generates a first audio signal (or left audio signal) and a second audio signal (right audio signal) from an audio source, and generates a first equalizing control signal provided from the controller 350. Equalizing the first audio signal and equalizing the second audio signal according to the second equalizing control signal provided from the control unit 350 and outputting the equalized first and second audio signals to the audio amplifier unit 373 ) is provided. Also, the audio generator 371 according to another example increases the volume level of each frequency band of the first audio signal according to the first equalizing control signal so that the first audio signal can have a uniform sound in all frequency bands. do. At the same time, the audio generator 371 according to another example increases the volume level of each frequency band of the second audio signal according to the second equalizing control signal, so that the second audio signal can have a uniform sound in all frequency bands. let it be To this end, the audio generator 371 according to another example includes an audio signal generator that generates first and second audio signals from an audio source, and an equalizer that equalizes the first and second audio signals according to an equalizing control signal. can include

The audio amplifier unit 373 is electrically connected to the vibration module 200 through an audio signal cable. For example, the audio amplifier unit 373 is electrically connected to the first and second vibration elements 210 and 230 of the vibration module 200 through an audio signal cable.

The audio amplifier unit 373 according to an example amplifies the vibration driving signal of the equalized audio signal supplied from the audio generating unit 371 and provides the amplified vibration driving signal to the vibration module 200 according to the vibration driving signal. The first and second vibration elements 210 and 230 are commonly vibrated.

The audio amplifier unit 373 according to another example amplifies each of the equalized first and second audio signals supplied from the audio generation unit 371 into first and second vibration driving signals, respectively, and provides the amplified signals to the vibration module 200. By doing so, the first and second vibration elements 210 and 230 of the vibration module 200 are individually vibrated according to the first and second vibration driving signals, respectively.

In addition, equalization of sound according to the present application may be performed by the audio amplifier unit 373 instead of the audio generation unit 371 . In this case, the audio generation unit 371 only performs a function of generating an audio signal from an audio source and providing it to the audio amplifier unit 373 .

As an example, the audio amplifier unit 373 equalizes the audio signal provided from the audio generator 371 based on the equalizing control signal provided from the controller 350, and converts the equalized audio signal into a vibration drive signal. amplified and supplied to the first and second vibration elements 210 and 230 of the vibration module 200 in common, thereby generating the first and second vibration elements 210 and 230 of the vibration module 200 according to the vibration driving signal. vibrate in general. Also, the audio amplifier unit 373 increases the volume level of each frequency band of the audio signal according to the equalizing control signal so that the audio signal can have a uniform sound in all frequency bands. To this end, the audio amplifier unit 373 according to an example may include an equalizer that equalizes an audio signal according to an equalization control signal, and a signal amplifier that amplifies and outputs the equalized audio signal as a vibration driving signal.

As another example, the audio amplifier unit 373 performs equalization on the first and second audio signals provided from the audio generator 371 based on the first and second equalizing control signals provided from the control unit 350. and amplifying each of the equalized first and second audio signals into first and second vibration driving signals, respectively, and supplying the amplified signals to the first and second vibration elements 210 and 230 of the vibration module 200, respectively. and the first and second vibration elements 210 and 230 of the vibration module 200 are individually vibrated according to the second vibration elements 210 and 230 . To this end, the audio amplifier unit 373 according to another example includes an equalizer that equalizes each of the first and second audio signals according to an equalizing control signal, and generates first and second vibrations for each of the equalized first and second audio signals. A signal amplifier for amplifying and outputting each driving signal may be included.

As described above, the electronic device according to an example of the present application can output accurate sound without a separate sound device or speaker by outputting sound to the front of the display panel 110 according to the vibration of the display module 100. Through this, the viewer's immersion can be increased. In addition, the electronic device according to the present example equalizes the sound based on the user's touch on the display module 100, thereby preventing the change of the sound according to the user's touch and providing the user with more accurate and uniform sound even when the user touches it. can do.

4 is a cross-sectional view schematically illustrating an electronic device according to another example of the present application, FIG. 5 is a rear view of the display panel shown in FIG. 4, and FIG. 6 is a view for explaining a driving circuit shown in FIG. 4 .

4 to 6, the electronic device according to another example of the present application vibrates the display module 100 having the display panel 110 and the touch panel 130 to generate sound forward of the display panel 110. and equalizes the sound according to the touch force level based on the touch force applied to the display module 100 according to the user's touch.

The electronic device according to the present example includes a display module 100 having a display panel 110 and a touch panel 130, a vibration module 200, a driving circuit unit 300, a housing 400, a cover window 500, and a rear surface. A cover 600 and a plurality of pressure sensors 700 are included. In the electronic device according to the present example having such a configuration, other components except for the plurality of pressure sensors 700 are the same as those of the electronic device shown in FIGS. 1 and 2, so in the following description, the plurality of pressure sensors 700 and Related components will be described, and the same reference numerals will be assigned to the same components, and duplicate descriptions thereof will be omitted or briefly described.

In the electronic device according to the present example, the plurality of pressure sensors 700 are disposed between the display panel 110 and the housing 400, and the pressure applied to the display panel 110 according to a user's touch on the display module 100 A force sensing signal corresponding to the touch force is generated. Each of the plurality of pressure sensors 700 according to an example may be interposed between the rear corner portion of the display panel 110 and the housing plate 430 . Accordingly, each of the plurality of pressure sensors 700 receives a force sensing signal corresponding to a touch force applied to the display panel 110 when the display panel 110 is deformed by a user's touch using the housing plate 430 as a support. and provides the generated force sensing signal to the driving circuit unit 300 .

Each of the plurality of pressure sensors 700 according to an example may include a piezoelectric material having a piezoelectric effect. Here, the piezoelectric effect means a phenomenon in which a potential difference is generated by dielectric polarization according to a change in the relative position of positive (+) ions and negative (-) ions while pressure or torsion is applied to the crystal structure by an applied force.

The piezoelectric material according to an embodiment may include any one of polyvinylidene difluoride (PVDF), lead zirconate titanate (PZT), BaTiO3, and parylene-C, but is not limited thereto, and any material having a piezoelectric effect may be applied. For example, among piezoelectric materials, PVDF is a semi-crystalline ferroelectric polymer, which has a high elastic modulus and excellent flexibility, is easy to manufacture into a film, is lightweight, flexible but does not break, and has strong impact resistance. Therefore, the pressure sensor 700 according to the present example may include PVDF.

Each of the plurality of pressure sensors 700 according to another example may include a piezoresistive material having a piezoresistive effect. Here, the piezoresistive effect refers to a phenomenon in which electrical resistance (or specific resistance) of a material is changed as conduction energy is generated by an applied pressure or force and charges move to a conduction band. Since this piezoresistive effect causes only a change in electrical resistance, it is distinguished from a piezoelectric effect that causes a change in electrical potential.

A material having a piezoresistive effect according to an example may be a metal, a semiconductor, a conductive polymer, or a conductive composite. Among conductive composite materials, rubber has a lower Young's modulus than other materials, so when used as a substrate for a composite, it can be used sufficiently as a material for sensing touch force because it can show flexibility, which is the biggest characteristic of rubber, to the composite. It has elasticity that can be restored to its original shape without significant deformation even after phosphorus deformation. In addition, among the conductive composite materials, silicone rubber has excellent properties such as heat resistance, cold resistance, weather resistance, and water resistance. Such rubbers may have a piezoresistive effect when constituted with conductive fillers.

A piezoresistive material according to one embodiment includes a polymer and a conductive filler. In one example, the polymer may include rubber or silicone rubber. The conductive filler according to an example may include any one of a metal, a semiconductor metal oxide, and a carbon-based material. For example, the metal may be nickel (Ni), copper (Cu), silver (Ag), aluminum (Al), or iron (Fe). The semiconductor metal oxide may be vanadium oxide (V2O3) or titanium oxide (TiO). The carbon-based material may be carbon black, graphite, graphene, or carbon nanotube (CNT).

The driving circuit unit 300 generates an audio signal based on an audio source, amplifies the audio signal to generate a vibration driving signal, and vibrates the vibration module 200 with the generated vibration driving signal. In addition, the driving circuit unit 300 equalizes the audio signal (or vibration driving signal) according to the touch force level based on the touch force applied to the display module 100 according to the user's touch, so that the sound changed according to the user's touch is uniform. adjust to

The driving circuit unit 300 according to the present example includes a panel driving circuit 310, a touch driving circuit 330, a force driving circuit 340, a controller 350, an audio processing unit 370, and a memory 390. . In the driving circuit unit 300 according to the present example having such a configuration, other components except for the force driving circuit 340 are the same as those of the driving circuit unit shown in FIG. 3, so in the following description, the force driving circuit 340 and components related thereto will be described, the same reference numerals will be assigned to the same components, and duplicate descriptions thereof will be omitted or briefly described.

The force driving circuit 340 according to the present example is mounted on a circuit board and electrically connected to each of the plurality of pressure sensors 700 . The force driving circuit 340 supplies a force driving signal to each of the plurality of pressure sensors 700, generates a force sensing signal according to an output signal of each of the plurality of pressure sensors 700, and transmits the generated force sensing signal to the control unit. (350). For example, the force driving circuit 340 may generate an analog sensing signal from an output signal of each of the plurality of pressure sensors 700 and convert the generated analog sensing signal into a digital signal to generate a force sensing signal.

The controller 350 generates digital image data and provides it to the panel driving circuit 310 . Also, the controller 350 detects touch information based on the touch sensing signal provided from the touch driving circuit 330 and executes a corresponding application according to the detected touch information. For example, the controller 350 calculates a touch location including an X-axis coordinate and a Y-axis coordinate based on the touch sensing signal, and executes a corresponding application corresponding to the calculated touch location.

Also, the controller 350 detects a touch force level based on the force sensing signal supplied from the force driving circuit 340 and generates an equalizing control signal corresponding to the detected touch force level. In this case, the controller 350 according to an example generates an equalizing control signal for adjusting a volume level for each frequency of sound output through vibration of the display panel 110 based on the touch force level.

As an example, the controller 350 controls the first vibration element 210 and the second vibration element 230 of the vibration module 200 according to the size of the touch force level based on the reference force level regardless of the calculated touch position. ) may generate an equalizing control signal for equalizing an audio signal (or a vibration drive signal) for commonly vibrating each. For example, the controller 350 may generate an equalizing control signal for increasing the vibration intensity of each of the first and second vibration elements 210 and 230 by the size of the touch force level based on the reference force level. . In addition, the control unit 350 may extract equalizing setting information mapped to the touch force level from the equalizing setting information for each touch force level stored in the memory 390 and generate an equalizing control signal based on the extracted equalizing setting information. .

As another example, the controller 350 may perform equalization for equalizing the first audio signal (or first vibration driving signal) for vibrating the first vibration element 210 based on the calculated touch position and the magnitude of the touch force level. A second equalizing control signal for equalizing the first equalizing control signal and the second audio signal (or second vibration driving signal) for vibrating the second vibration element 230 may be generated. In this case, the controller 350 extracts equalizing setting information mapped to the touch position and touch force level from the equalizing setting information for each touch position and the equalizing setting information for each touch force level stored in the memory 390, and the extracted equalizing setting information. Based on, it is possible to generate a first equalizing control signal and a second equalizing control signal. For example, when the touch position is an area overlapping the first vibration element 210 (or the second vibration element 230), the controller 350 controls the first vibration element 210 (or the second vibration element 230) according to the touch force level. A first equalizing control signal (or second equalizing control signal) for increasing the vibration intensity of the second vibration element 230 is generated, and the second vibration element 230 (or the first vibration element) is generated according to the touch force level. (210)) may generate a second equalizing control signal (or first equalizing control signal) for maintaining or reducing the vibration intensity. In addition, when the user's touch position overlaps the area between the area overlapping the first vibration element 210 and the middle area overlapping the second vibration element 230, the control unit 350 determines the touch force level according to the touch force level. A first equalizing control signal and a second equalizing control signal may be generated to reduce the vibration intensity of each of the first vibration element 210 and the second vibration element 230 at the same rate. For example, when the touch position overlaps the middle region, the vibration of the first vibration element 210 and the vibration of the second vibration element 230 are separated from each other, so that output according to the vibration of the display panel 110 Since the volume of sound increases, in order to compensate for this increase, the control unit 350 generates a first equalizing control signal for reducing the vibration intensity of each of the first and second vibration elements 210 and 230 according to the touch force level. A second equalizing control signal is generated.

The audio processing unit 370 generates an audio signal based on an audio source and amplifies the audio signal to generate a vibration drive signal, and transmits the generated vibration drive signal to the vibration module 200, that is, the first vibration element 210 and It is supplied to the second vibration element 230. Also, the audio processing unit 370 performs equalization on the audio signal (or vibration driving signal) based on the equalizing control signal provided from the control unit 350 . The audio processor 370 according to an example includes an audio generator 371 and an audio amplifier 373 . Since the audio processing unit 370 having this configuration is the same as the audio processing unit shown in FIG. 3, a redundant description thereof will be omitted.

As described above, the electronic device according to another example of the present application can output accurate sound without a separate sound device or speaker by outputting sound to the front of the display panel 110 according to the vibration of the display module 100. Through this, the viewer's immersion can be increased. In addition, the electronic device according to the present example equalizes the sound based on the touch force applied to the display module 100 according to the user's touch to the display module 100, thereby preventing the change in sound according to the user's touch, thereby reducing the user's touch More accurate and uniform sound can be provided to the user even when

7 is a cross-sectional view schematically illustrating an electronic device according to another example of the present application, and FIG. 8 is a view for explaining a driving circuit shown in FIG. 7 .

Referring to FIGS. 7 and 8 , the electronic device according to another example of the present application vibrates the display module 100 having the display panel 110 and the touch panel 130 to produce sound in front of the display panel 110. is output, and the sound output to the front of the display panel 110 is received and the sound is equalized.

The electronic device according to the present example includes a display module 100 having a display panel 110 and a touch panel 130, a vibration module 200, a driving circuit unit 300, a housing 400, a cover window 500, and a rear surface. A cover 600 and a sound receiving module 800 are included. In the electronic device according to the present example having such a configuration, other components except for the sound receiving module 800 are the same as those of the electronic device shown in FIGS. 1 and 2, so in the following description, the sound receiving module 800 and related components will be described, the same reference numerals will be assigned to the same components, and duplicate descriptions thereof will be omitted or briefly described.

The sound receiving module 800 according to the present example is disposed in the housing 400 and receives sound output by vibration of the display panel 110 to generate a sound reception signal and provide it to the driving circuit unit 300 . The sound receiving module 800 is accommodated in the module accommodating part 415 provided on the housing sidewall 410 of the housing 400, receives sound output by vibration of the display panel 110, and generates a sound receiving signal. Provided to the driving circuit unit 300.

The sound receiving module 800 according to an example may include one sound receiving element. One sound receiving element is housed in one housing sidewall 410 of the housing 400 surrounding one end of the display module 100 or the other housing sidewall 410 of the housing 400 surrounding the other end of the display module 100. ), and generates a sound reception signal by receiving sound output by vibration of the display panel 110 through the sound receiving hole 417 provided in the side wall 410 of the housing facing the housing, and generates a sound reception signal. Provided to the driving circuit unit 300.

The sound receiving module 800 according to another example includes a first sound receiving element 810 housed in a sidewall 410 of one side of the housing 400 surrounding one end of the display module 100, and the display module 100. A second sound receiving element 810 accommodated in the side wall 410 of the other housing 400 surrounding the other end of the housing 400 may be included.

The first sound receiving element 810 may be expressed as a first microphone module. The first sound receiving element 810 receives the sound output from the first area of the display panel 110 according to the vibration of the display panel 110 through the sound receiving hole 417 provided in the side wall 410 of one side of the housing. to generate a first sound reception signal, and provide the generated first sound reception signal to the driving circuit unit 300 .

The second sound receiving element 830 may be expressed as a second microphone module. The second sound receiving element 830 receives the sound output from the second area of the display panel 110 according to the vibration of the display panel 110 through the sound receiving hole 417 provided on the side wall 410 of the other housing. to generate a second sound reception signal, and provide the generated second sound reception signal to the driving circuit unit 300 .

The driving circuit unit 300 generates an audio signal based on an audio source, amplifies the audio signal to generate a vibration driving signal, and vibrates the vibration module 200 with the generated vibration driving signal. In addition, the driving circuit unit 300 equalizes the audio signal (or vibration driving signal) based on the sound reception signal changed according to the user's touch, thereby uniformly adjusting the sound that is changed according to the user's touch. That is, the driving circuit unit 300 outputs an audio signal (or a vibration drive signal) based on a comparison result between the current sound output signal corresponding to the sound output by the vibration of the display panel and the sound reception signal provided from the sound receiving module 800. ) can be equalized.

The driving circuit unit 300 according to the present example includes a panel driving circuit 310 , a touch driving circuit 330 , a controller 350 , an audio processing unit 370 , and a memory 390 . Since the driving circuit unit 300 according to the present example having such a configuration is the same as the driving circuit unit shown in FIG. 3 except that the control unit 350 is connected to the sound receiving module 800, in the following description, the control unit 350 ) And components related thereto will be described, the same reference numerals will be assigned to the same components, and duplicate descriptions thereof will be omitted or briefly described.

The control unit 350 according to the present example generates digital image data and provides it to the panel driving circuit 310 . Also, the controller 350 detects touch information based on the touch sensing signal provided from the touch driving circuit 330 and executes a corresponding application according to the detected touch information. For example, the controller 350 calculates a touch location including an X-axis coordinate and a Y-axis coordinate based on the touch sensing signal, and executes a corresponding application corresponding to the calculated touch location.

Further, the control unit 350 according to the present example generates an equalizing control signal according to a comparison result between a current sound output signal corresponding to sound output by vibration of the display panel and a sound reception signal provided from the sound receiving module 800. do. For example, the controller 350 detects a signal level deviation between a current audio output signal and a sound reception signal, and generates an equalizing control signal according to the detected signal level deviation.

As an example, the controller 350 vibrates each of the first vibration element 210 and the second vibration element 230 of the vibration module 200 according to the size of the signal level deviation between the current sound output signal and the sound reception signal. It is possible to generate an equalizing control signal for commonly equalizing an audio signal (or a vibration driving signal) for For example, the control unit 350 may generate an equalizing control signal for increasing the vibration intensity of each of the first and second vibration elements 210 and 230 by the size of the signal level deviation. At this time, the control unit 350 may extract equalizing setting information mapped to the signal level deviation from the equalizing setting information for each signal level deviation stored in the memory 390, and generate an equalizing control signal based on the extracted equalizing setting information. .

As another example, the controller 350 may be configured to vibrate the first vibration element 210 according to the magnitude of the first signal level deviation between the current sound output signal and the first sound reception signal of the first sound reception element 810. A first equalizing control signal for equalizing one audio signal (or a first vibration drive signal) and a magnitude of a second signal level deviation between a current sound output signal and a second sound reception signal of the second sound receiving element 830 Accordingly, a second equalizing control signal for equalizing the second audio signal (or second vibration driving signal) for vibrating the second vibration element 230 may be generated. In this case, the control unit 350 extracts equalizing setting information mapped to each of the first and second signal level deviations from the equalizing setting information for each signal level deviation stored in the memory 390, and based on the extracted equalizing setting information, the equalizing setting information is extracted. A first equalizing control signal and a second equalizing control signal may be generated.

As another example, the controller 350 may set the first vibration element 210 according to the size of the first signal level deviation between the calculated touch position, the current sound output signal, and the first sound reception signal of the first sound reception element 810. A first equalizing control signal for equalizing a first audio signal (or a first vibration drive signal) for vibrating, and a second signal between the current sound output signal and the second sound reception signal of the second sound receiving element 830 A second equalizing control signal for equalizing the second audio signal (or second vibration driving signal) for vibrating the second vibration element 230 may be generated according to the size of the level deviation. In this case, the controller 350 extracts equalizing setting information mapped to the touch position and signal level deviation from the equalizing setting information for each touch position and the equalizing setting information for each signal level deviation stored in the memory 390, and the extracted equalizing setting information. Based on, it is possible to generate a first equalizing control signal and a second equalizing control signal. For example, when the touch position is an area overlapping with the first vibration element 210 (or the second vibration element 230), the controller 350 controls the first vibration element 210 according to the first signal level deviation. A first equalizing control signal (or second equalizing control signal) for increasing the vibration intensity of (or the second vibration element 230) is generated, and the second vibration element 230 (or second equalization control signal) is generated according to the second signal level deviation. A second equalizing control signal (or first equalizing control signal) for maintaining or reducing the vibration intensity of the first vibration element 210 may be generated. And, when the user's touch position overlaps with the region between the region overlapping with the first vibration element 210 and the middle region overlapping with the second vibration element 230, the controller 350 determines the first signal level deviation. To generate a first equalizing control signal for reducing the vibration intensity of the first vibration element 210 and a second equalizing control signal for reducing the vibration intensity of the second vibration element 230 according to the second signal level deviation. can For example, when the touch position overlaps the middle region, the vibration of the first vibration element 210 and the vibration of the second vibration element 230 are separated from each other, so that output according to the vibration of the display panel 110 Since the volume of the sound increases, in order to compensate for this, the control unit 350 reduces the vibration intensity of each of the first vibration element 210 and the second vibration element 230 according to the first and second signal level deviations, respectively. A first equalizing control signal and a second equalizing control signal are generated.

The audio processing unit 370 generates an audio signal based on an audio source and amplifies the audio signal to generate a vibration drive signal, and transmits the generated vibration drive signal to the vibration module 200, that is, the first vibration element 210 and It is supplied to the second vibration element 230. Also, the audio processing unit 370 performs equalization on the audio signal (or vibration driving signal) based on the equalizing control signal provided from the control unit 350 . The audio processor 370 according to an example includes an audio generator 371 and an audio amplifier 373 . Since the audio processing unit 370 having this configuration is the same as the audio processing unit shown in FIG. 3, a redundant description thereof will be omitted.

As described above, the electronic device according to another example of the present application can output accurate sound without a separate sound device or speaker by outputting sound to the front of the display panel 110 according to the vibration of the display module 100, Through this, the viewer's immersion can be increased. In addition, the electronic device according to the present example equalizes sound based on a sound reception signal that is changed according to a user's touch on the display module 100 without a pressure sensor, thereby preventing a change in sound according to a user's touch, even when a user touches the display module 100. More accurate and uniform sound can be provided to the user.

FIG. 9 is a diagram for explaining a modified example of the driving circuit of the present application shown in FIG. 7 .

Referring to FIG. 9 and FIG. 7 , the driving circuit unit 300 according to the present example generates an audio signal based on an audio source, synthesizes a high-frequency identification signal to the audio signal, and generates a vibration driving signal, and generates the vibration driving signal. is provided to the vibration module 200, and the audio signal (or vibration drive signal) is equalized based on the level of the high-frequency identification signal included in the sound reception signal provided from the sound reception module 800. To this end, the driving circuit unit 300 according to the present example includes a panel driving circuit 310, a touch driving circuit 330, a controller 350, an audio processing unit 370, and a memory 390. Since the driving circuit unit 300 according to the present example having such a configuration is the same as the driving circuit unit shown in FIG. 8 except for the control unit 350 and the audio processing unit 370, in the following description, the control unit 350 and the audio processing unit 270 and components related thereto will be described, the same reference numerals will be assigned to the same components, and redundant descriptions thereof will be omitted or briefly described.

The audio processing unit 370 according to the present example generates an audio signal based on an audio source, synthesizes a high-frequency identification signal to the audio signal to generate a vibration driving signal, and transmits the generated vibration driving signal to the vibration module 200, that is, the first It is supplied to the first vibration element 210 and the second vibration element 230. Also, the audio processing unit 370 performs equalization on the audio signal (or vibration driving signal) based on the equalizing control signal provided from the control unit 350 . The audio processor 370 according to an example includes an audio generator 371, an audio amplifier 373, and a high frequency identification signal generator 375.

The audio generating unit 371 generates an audio signal from an audio source under the control of the controller 350, synthesizes a high-frequency identification signal with the generated audio signal, and outputs the synthesized audio signal. And, the audio generator 340 performs equalization on the audio signal based on the equalizing control signal provided from the control unit 350. To this end, the audio generator 371 includes an audio signal generator that generates an audio signal from an audio source, a signal synthesizer that synthesizes and outputs a high-frequency identification signal to the audio signal, and an equalizer that equalizes the audio signal according to an equalizing control signal. can include

The audio amplifier unit 373 is electrically connected to the vibration module 200 through an audio signal cable. That is, the audio amplifier unit 373 is electrically connected to the first and second vibration elements 210 and 230 of the vibration module 200 through an audio signal cable.

The audio amplifier unit 373 according to an example amplifies the vibration driving signal of the equalized audio signal supplied from the audio generating unit 371 and provides the amplified vibration driving signal to the vibration module 200 according to the vibration driving signal. The first and second vibration elements 210 and 230 are commonly vibrated.

The audio amplifier unit 373 according to another example amplifies each of the equalized first and second audio signals supplied from the audio generation unit 371 into first and second vibration driving signals, respectively, and provides the amplified signals to the vibration module 200. By doing so, the first and second vibration elements 210 and 230 of the vibration module 200 are individually vibrated according to the first and second vibration drive signals, respectively.

Also, equalization of sound according to the present application may be performed by the audio amplifier unit 373 instead of the audio generation unit 371 as described above. In this case, the audio generation unit 371 only performs a function of generating an audio signal from an audio source and providing it to the audio amplifier unit 373 .

The high frequency identification signal generation unit 375 generates a high frequency identification signal and provides it to the audio generation unit 371 or the audio amplifier unit 373. A high frequency identification signal according to an example may have an inaudible frequency. For example, the high-frequency identification signal may have a frequency exceeding 20 kHz. Since this high-frequency identification signal has a user's inaudible frequency, it does not affect sound heard by the user even if it is synthesized with an audio signal (or a vibration driving signal).

The control unit 350 according to the present example generates digital image data and provides it to the panel driving circuit 310 . Also, the controller 350 detects touch information based on the touch sensing signal provided from the touch driving circuit 330 and executes a corresponding application according to the detected touch information. For example, the controller 350 calculates a touch location including an X-axis coordinate and a Y-axis coordinate based on the touch sensing signal, and executes a corresponding application corresponding to the calculated touch location.

Also, the control unit 350 according to the present example extracts a high frequency identification signal included in the sound reception signal provided from the sound reception module 800 and generates an equalizing control signal based on the level of the extracted high frequency identification signal. For example, as shown in FIG. 10 , the control unit 350 determines the difference between the reference level of the high frequency identification signal HF1 synthesized with the vibration driving signal and the signal level of the high frequency identification signal HF2 extracted from the sound reception signal. A signal level deviation is detected, and an equalizing control signal is generated according to the detected signal level deviation.

As an example, the controller 350 vibrates according to the size of the signal level deviation between the reference level of the high frequency identification signal synthesized with the vibration driving signal and the signal level of the high frequency identification signal extracted from the sound reception signal, regardless of the calculated touch position. An equalizing control signal for commonly equalizing an audio signal (or a vibration driving signal) for vibrating each of the first vibration element 210 and the second vibration element 230 of the module 200 may be generated. For example, the control unit 350 may generate an equalizing control signal for increasing the vibration intensity of each of the first and second vibration elements 210 and 230 by the size of the signal level deviation. In this case, the control unit 350 may extract equalizing setting information mapped to the signal level deviation from the equalizing setting information for each signal level deviation stored in the memory 390 and generate an equalizing control signal based on the extracted equalizing setting information. have.

As another example, the control unit 350 determines the difference between the reference level of the high frequency identification signal combined with the first vibration drive signal and the signal level of the first sound reception signal of the first sound receiving element 810, regardless of the calculated touch position. The first equalizing control signal for equalizing the first audio signal (or the first vibration driving signal) for vibrating the first vibration element 210 according to the magnitude of the 1 signal level deviation, and the second vibration driving signal synthesized A second audio signal for vibrating the second vibration element 230 according to the magnitude of the second signal level deviation between the reference level of the high frequency identification signal and the signal level of the second sound reception signal of the second sound reception element 830 ( Alternatively, a second equalizing control signal for equalizing the second vibration driving signal) may be generated. In this case, the control unit 350 extracts equalizing setting information mapped to each of the first and second signal level deviations from the equalizing setting information for each signal level deviation stored in the memory 390, and based on the extracted equalizing setting information, the equalizing setting information is extracted. A first equalizing control signal and a second equalizing control signal may be generated.

As another example, the controller 350 may generate a first signal between the reference level of the high-frequency identification signal synthesized with the calculated touch position and the first vibration driving signal and the signal level of the first sound reception signal of the first sound receiving element 810. A first equalizing control signal for equalizing the first audio signal (or first vibration drive signal) for vibrating the first vibration element 210 according to the size of the level deviation, and a high frequency identification synthesized to the second vibration drive signal. The second audio signal (or the second audio signal for vibrating the second vibration element 230 according to the magnitude of the second signal level deviation between the reference level of the signal and the signal level of the second sound reception signal of the second sound reception element 830) 2 vibration driving signal) may be generated as a second equalizing control signal for equalizing. In this case, the controller 350 extracts equalizing setting information mapped to the touch position and signal level deviation from the equalizing setting information for each touch position and the equalizing setting information for each signal level deviation stored in the memory 390, and the extracted equalizing setting information. Based on, it is possible to generate a first equalizing control signal and a second equalizing control signal. For example, when the touch position is an area overlapping with the first vibration element 210 (or the second vibration element 230), the controller 350 controls the first vibration element 210 according to the first signal level deviation. A first equalizing control signal (or second equalizing control signal) for increasing the vibration intensity of (or the second vibration element 230) is generated, and the second vibration element 230 (or second equalization control signal) is generated according to the second signal level deviation. A second equalizing control signal (or first equalizing control signal) for maintaining or reducing the vibration intensity of the first vibration element 210 may be generated. And, when the user's touch position overlaps with the region between the region overlapping with the first vibration element 210 and the middle region overlapping with the second vibration element 230, the controller 350 determines the first signal level deviation. To generate a first equalizing control signal for reducing the vibration intensity of the first vibration element 210 and a second equalizing control signal for reducing the vibration intensity of the second vibration element 230 according to the second signal level deviation. can That is, when the touch position overlaps the middle region, the vibration of the first vibration element 210 and the vibration of the second vibration element 230 are separated from each other, so that the sound output according to the vibration of the display panel 110 Since the volume increases, in order to compensate for this, the control unit 350 performs a first step for reducing the vibration intensity of each of the first vibration element 210 and the second vibration element 230 according to the first and second signal level deviations, respectively. An equalizing control signal and a second equalizing control signal are generated.

As described above, the electronic device including the driving circuit unit 130 according to the modified example of the present application synthesizes a high-frequency identification signal with a vibration driving signal, and equalizes sound based on a change in the high-frequency identification signal according to a user's touch, thereby equalizing the user's touch. It is possible to provide a more accurate and uniform sound to the user even when the user touches by preventing a change in sound according to the user's touch.

11 is a flow chart illustrating a sound output method of an electronic device according to an example of the present application, which shows the sound output method of the electronic device shown in FIGS. 1 to 3 .

A sound output method of an electronic device according to an example of the present application will be described in connection with FIG. 11 with FIGS. 1 to 3 .

First, an audio signal is generated based on an audio source, the audio signal is amplified to generate a vibration driving signal, and the vibration module 200 is vibrated according to the generated vibration driving signal, so that the display module is vibrated according to the vibration of the vibration module 200. 100 is vibrated to output sound to the front of the display panel 110 (S100).

Then, a user's touch to the display module 100 is sensed through the touch driving circuit 330 (S200).

Then, touch information is detected based on the touch sensing signal provided from the touch driving circuit 330 (S300).

And, if touch information is generated (“Yes” in S300), an equalizing control signal is generated according to the detected touch information, and an audio signal (or vibration driving signal) is equalized according to the generated equalizing control signal (S400). By vibrating the vibration module 200 according to the vibration driving signal amplified from the equalized audio signal or the equalized vibration driving signal, the display module 100 is vibrated according to the vibration of the vibration module 200, and thus the display panel 110 Sound is output forward (S100). In this case, in step S400 according to an example, when touch information is generated regardless of the calculated touch position, a first vibration element 210 and a second vibration element 230 of the vibration module 200 are vibrated, respectively. Each of the first and second audio signals (or first and second vibration driving signals) may be equalized in common. In step S400 according to another example, the first audio signal (or first vibration driving signal) for vibrating the first vibration element 210 and the second vibration element 230 are vibrated based on the calculated touch position. The second audio signal (or the second vibration driving signal) may be individually equalized.

And, when touch information is not generated (“No” in S300), the display module 100 is vibrated according to the vibration of the vibration module 200 by vibrating the vibration module 200 to the front of the display panel 110. Sound is output (S100).

Then, steps S100 to S400 described above are repeated.

As described above, the sound output method of an electronic device according to an example of the present application equalizes the sound based on the user's touch on the display module 100 to prevent the change in sound according to the user's touch so that the user's touch is more accurate. and can provide a uniform sound to the user.

12 is a flowchart illustrating a sound output method of an electronic device according to another example of the present application, which shows the sound output method of the electronic device shown in FIGS. 4 to 6 .

A sound output method of an electronic device according to another example of the present application will be described in connection with FIG. 12 with FIGS. 4 to 6.

First, an audio signal is generated based on an audio source, the audio signal is amplified to generate a vibration driving signal, and the vibration module 200 is vibrated according to the generated vibration driving signal, so that the display module is vibrated according to the vibration of the vibration module 200. 100 is vibrated to output sound to the front of the display panel 110 (S100).

Then, the touch force according to the user's touch on the display module 100 is sensed through each of the plurality of pressure sensors 700 (S200).

Then, a touch force level is calculated according to the touch sensing signal output from each of the plurality of pressure sensors 700, and force touch information (or force touch event) is detected based on the calculated touch force level (S300).

And, if the force touch information is generated (“Yes” in S300), an equalizing control signal is generated according to the detected touch force level, and the audio signal (or vibration driving signal) is equalized according to the generated equalizing control signal ( S400), the display module 100 is vibrated according to the vibration of the vibration module 200 by vibrating the vibration module 200 according to the vibration drive signal amplified from the equalized audio signal or the equalized vibration drive signal, and the display panel 110 ) Outputs sound to the front (S100). And, in step S400 according to an example, when force touch information is generated, the first and second vibration elements 210 and 230 of the vibration module 200 are vibrated according to the force touch level, respectively. Each of the second audio signals (or first and second vibration driving signals) may be equalized in common. In step S400 according to another example, a first audio signal (or first vibration drive signal) for vibrating the first vibration element 210 according to the force touch level and a second audio signal for vibrating the second vibration element 230 Each of the signals (or the second vibration driving signal) may be individually equalized.

And, when the touch force information is not generated (“No” in S300), the display module 100 is vibrated according to the vibration of the vibration module 200 by vibrating the vibration module 200 so that the front of the display panel 110 is moved. Sound is output as (S100).

Then, steps S100 to S400 described above are repeated.

In addition, a sound output method of an electronic device according to another example of the present application generates a touch sensing signal by sensing a user's touch on the display module 100 through the touch driving circuit 330, and based on the generated touch sensing signal. Calculate the touch position and vibrate the first audio signal (or first vibration drive signal) and the second vibration element 230 for vibrating the first vibration element 210 according to the calculated touch position and force touch level. Each of the second audio signals (or the second vibration driving signal) may be individually equalized.

Such a sound output method of an electronic device according to another example of the present application prevents a change in sound according to a user's touch by equalizing the sound based on a touch force level according to a user's touch on the display module 100, Even when touched, more accurate and uniform sound can be provided to the user.

13 is a flowchart for explaining a sound output method of an electronic device according to another example of the present application, which shows the sound output method of the electronic device shown in FIGS. 7 and 8 .

A sound output method of an electronic device according to another example of the present application will be described in connection with FIG. 13 with FIGS. 7 and 8.

First, an audio signal is generated based on an audio source, the audio signal is amplified to generate a vibration driving signal, and the vibration module 200 is vibrated according to the generated vibration driving signal, so that the display module is vibrated according to the vibration of the vibration module 200. 100 is vibrated to output sound to the front of the display panel 110 (S100).

Then, sound output by vibration of the display panel 110 is received through the sound receiving module 800 to generate a sound reception signal (S200).

Then, a change in sound is determined by detecting a signal level deviation between the current sound output signal corresponding to the sound output by the vibration of the display panel 110 and the sound reception signal provided from the sound receiving module 800 (S300). .

And, if a change in sound occurs (“Yes” in S300), an equalizing control signal is generated according to the detected signal level deviation, and the audio signal (or vibration driving signal) is equalized according to the generated equalizing signal (S400). ), the display module 100 is vibrated according to the vibration of the vibration module 200 by vibrating the vibration module 200 according to the vibration drive signal amplified from the equalized audio signal or the equalized vibration drive signal, and the display panel 110 Sound is output to the front of (S100). In this case, in step S400 according to an example, the first vibration element 210 of the vibration module 200 is based on the first sound reception signal supplied from the first sound reception element 810 of the sound reception module 800. ) and equalizes the first audio signal (or first vibration driving signal) for vibrating, and based on the second sound receiving signal supplied from the second sound receiving element 830 of the sound receiving module 800, the vibration module The second audio signal (or the second vibration drive signal) for vibrating the second vibration element 230 of 200 may be equalized.

And, when no change in sound occurs (“No” in S300), the display module 100 is vibrated according to the vibration of the vibration module 200 by vibrating the vibration module 200 so that the front of the display panel 110 Sound is output as (S100).

Then, steps S100 to S400 described above are repeated.

And, a sound output method of an electronic device according to another example of the present application senses a user's touch to the display module 100 through the touch driving circuit 330 to generate a touch sensing signal, and generates a touch sensing signal A first audio signal (or a first vibration drive signal) for calculating a touch position based on and vibrating the first vibration element 210 according to the calculated touch position, the first signal level deviation, and the second signal level deviation, and Each of the second audio signals (or second vibration driving signals) that vibrate the second vibration element 230 may be individually equalized.

Such a sound output method of an electronic device according to another example of the present application prevents a change in sound according to a user's touch by equalizing the sound based on a change in sound according to a user's touch on the display module 100, Even when touched, more accurate and uniform sound can be provided to the user.

14 is a flow chart illustrating a sound output method of an electronic device according to another example of the present application, which shows a sound output method of an electronic device including a driving circuit according to the modified examples shown in FIGS. 9 and 10 will be.

Referring to FIG. 14 in conjunction with FIGS. 9 and 10 , a sound output method of an electronic device according to another example of the present application will be described.

First, an audio signal is generated based on an audio source, and a high-frequency identification signal is synthesized with the generated audio signal (S100).

Then, the audio signal synthesized with the high-frequency identification signal is amplified to generate a vibration driving signal (S200).

And, by vibrating the vibration module 200 according to the vibration driving signal, the display module 100 is vibrated according to the vibration of the vibration module 200, and sound is output to the front of the display panel 110 (S300).

Then, sound output by vibration of the display panel 110 is received through the sound receiving module 800 to generate a sound reception signal (S400).

Then, a change in sound is determined by detecting a signal level deviation between the current sound output signal corresponding to the sound output by the vibration of the display panel 110 and the sound reception signal provided from the sound receiving module 800 (S500). .

Then, when a change in sound occurs (“Yes” in S500), an equalizing control signal is generated according to the detected signal level deviation, and the audio signal (or vibration driving signal) is equalized according to the generated equalizing signal (S600). ), the display module 100 is vibrated according to the vibration of the vibration module 200 by vibrating the vibration module 200 according to the vibration drive signal amplified from the equalized audio signal or the equalized vibration drive signal, and the display panel 110 Sound is output to the front of (S100). In this case, in step S400 according to an example, the first vibration element 210 of the vibration module 200 is based on the first sound reception signal supplied from the first sound reception element 810 of the sound reception module 800. ) and equalizes the first audio signal (or first vibration driving signal) for vibrating, and based on the second sound receiving signal supplied from the second sound receiving element 830 of the sound receiving module 800, the vibration module The second audio signal (or the second vibration drive signal) for vibrating the second vibration element 230 of 200 may be equalized.

And, when no change in sound occurs (“No” in S300), the display module 100 is vibrated according to the vibration of the vibration module 200 by vibrating the vibration module 200 so that the front of the display panel 110 Sound is output as (S100).

Then, steps S100 to S600 described above are repeated.

And, a sound output method of an electronic device according to another example of the present application senses a user's touch to the display module 100 through the touch driving circuit 330 to generate a touch sensing signal, and generates a touch sensing signal A first audio signal (or a first vibration drive signal) for calculating a touch position based on and vibrating the first vibration element 210 according to the calculated touch position, the first signal level deviation, and the second signal level deviation, and Each of the second audio signals (or second vibration driving signals) that vibrate the second vibration element 230 may be individually equalized.

As described above, in the method for outputting sound of an electronic device including the driving circuit unit 130 according to a modified example of the present application, a high-frequency identification signal is synthesized with an audio signal, and the sound is equalized based on a change in the high-frequency identification signal according to a user's touch. By doing so, it is possible to prevent a change in sound according to a user's touch and provide a more accurate and uniform sound to the user even when the user touches.

The electronic device according to the present application can be described as follows.

The electronic device according to the present application vibrates a display module having a display panel and a touch panel to output sound to the front of the display panel, and equalizes the sound based on a user's touch to the display.

According to some embodiments of the present application, a vibration module for vibrating a display module according to a vibration driving signal, and a driving circuit for generating an audio signal based on an audio source and amplifying the audio signal to generate a vibration driving signal may be included. And, the driving circuit unit can equalize the audio signal based on the user's touch.

According to some embodiments of the present application, the driving circuit unit detects touch information based on the touch sensing signal supplied from the touch driving circuit and the touch driving circuit that senses the user's touch screen through the touch panel, and performs equalization according to the detected touch information. A control unit for generating a control signal, and an audio signal for generating an audio signal based on an audio source, amplifying the audio signal, generating a vibration driving signal, providing the vibration driving signal to the vibration module, and equalizing the audio signal according to the equalizing control signal supplied from the control unit. A processing unit may be included.

According to some embodiments of the present application, a vibration module for vibrating a display module according to a vibration driving signal, and a driving circuit for generating an audio signal based on an audio source and amplifying the audio signal to generate a vibration driving signal may be included. In addition, the driving circuit unit may equalize the audio signal according to the touch force level based on the touch force applied to the display module according to the user's touch.

According to some embodiments of the present application, a housing accommodating the display module, and a plurality of pressure sensors disposed between the housing and the display panel and generating a force sensing signal corresponding to the touch force may further include a driving circuit unit. may calculate a touch force level based on force sensing signals supplied from each of a plurality of pressure sensors.

According to some embodiments of the present application, the driving circuit unit detects the touch force level based on the force sensing signal supplied from the force driving circuit and the force driving circuit generating the force sensing signal based on the output signal from each of the plurality of pressure sensors. And a control unit for generating an equalizing control signal corresponding to the detected touch force level, and generating an audio signal based on the audio source, amplifying the audio signal to generate a vibration driving signal, and providing it to the vibration module, supplied from the control unit An audio processing unit that equalizes an audio signal according to an equalizing control signal may be included.

According to some embodiments of the present application, a housing for accommodating a display module, a vibration module for vibrating the display module according to a vibration drive signal, and a sound received by vibration of the display panel disposed in the housing to generate a sound reception signal and a driving circuit unit generating an audio signal based on an audio source and amplifying the audio signal to generate a vibration driving signal. Audio signals can be equalized.

According to some embodiments of the present application, the driving circuit unit may equalize the audio signal based on a comparison result between a current sound output signal corresponding to sound output by vibration of the display panel and a sound reception signal provided from the sound receiving module. have.

According to some embodiments of the present application, the driving circuit unit generates an audio signal based on a control unit for generating an equalizing control signal according to a comparison result between a current audio output signal and a sound reception signal, and an audio source, and amplifies the audio signal to perform the audio signal. It may include an audio processing unit that generates and provides a vibration driving signal to the vibration module and equalizes the audio signal according to an equalizing control signal supplied from the controller.

According to some embodiments of the present application, the driving circuit unit synthesizes a high-frequency identification signal with an audio signal or a vibration driving signal, provides the synthesized signal to the vibration module, and detects a level change of the high-frequency identification signal included in the sound reception signal provided from the sound reception module. Based on this, the audio signal can be equalized.

According to some embodiments of the present application, the driving circuit generates an audio signal based on an audio source, synthesizes a high-frequency identification signal to the audio signal to generate a vibration driving signal, and provides the generated vibration driving signal to the vibration module. It may include a processing unit and a control unit generating an equalizing control signal based on a level change of a high-frequency identification signal included in a sound reception signal provided from the sound reception module, and the audio processing unit generates an audio signal according to the equalizing control signal supplied from the control unit. You can equalize the signal.

According to some embodiments of the present application, a first vibration element for vibrating a first region of a display module according to a first vibration driving signal and a second vibration element for vibrating a second region of a display module according to a second vibration driving signal A vibration module having a and generating a first audio signal and a second audio signal based on an audio source and amplifying the first audio signal and the second audio signal to generate a first vibration drive signal and a second vibration drive signal The driving circuit may include a driving circuit, which may equalize a first audio signal according to first touch information on a first area based on a user's touch, and may equalize a first audio signal according to second touch information on a second area. can be equalized.

According to some embodiments of the present application, the driving circuit unit generates a first audio signal and a second audio signal based on an audio source and amplifies each of the first audio signal and the second audio signal to generate the first vibration driving signal and the second audio signal. An audio processing unit that generates a vibration drive signal, a touch drive circuit that senses a user touch through a touch panel, and first touch information on a first area and second touch information on a second area based on a touch sensing signal supplied from the touch drive circuit. It may include a control unit that detects touch information and generates a first equalizing control signal according to the detected first touch information and a second equalizing control signal according to the detected second touch information, and the audio processing unit generates the first and second equalizing control signals. Each of the first and second audio signals may be equalized according to each of the two equalizing control signals.

According to some embodiments of the present application, a first vibration element for vibrating a first region of a display module according to a first vibration driving signal and a second vibration element for vibrating a second region of a display module according to a second vibration driving signal A vibration module having a drive that generates a first audio signal and a second audio signal based on an audio source and generates a first vibration drive signal and a second vibration drive signal by amplifying the first audio signal and the second audio signal, respectively. The driving circuit may equalize a first audio signal according to a first touch force level on a first area based on a touch force applied to the display module according to a user's touch, and may equalize a second audio signal on a second area. The second audio signal may be equalized according to the touch force level.

According to some embodiments of the present application, a housing for accommodating the display module, and a plurality of pressure sensors disposed between the housing and the display panel and generating force sensing signals corresponding to the touch force may be further included, and the driving circuit may include A first touch force level and a second touch force level may be calculated based on force sensing signals supplied from each of the plurality of pressure sensors.

According to some embodiments of the present application, the driving circuit unit generates a first audio signal and a second audio signal based on an audio source and amplifies each of the first audio signal and the second audio signal to generate the first vibration driving signal and the second audio signal. Based on the force sensing signal supplied from the audio processing unit generating the vibration driving signal and each of the plurality of pressure sensors, the first touch force level on the first area and the second touch force level on the second area are detected, and the detected second touch force level is detected. It may include a control unit generating a first equalizing control signal according to one touch force level and a second equalizing control signal according to a detected second touch force level, and the audio processing unit according to each of the first and second equalizing control signals. Each of the first and second audio signals may be equalized.

According to some embodiments of the present application, a first vibration element for vibrating a first region of a display module according to a first vibration driving signal and a second vibration element for vibrating a second region of a display module according to a second vibration driving signal Vibration module having a. A housing for accommodating the display module, disposed in the housing, receiving sound output by vibration of the first area of the display module, receiving a first sound reception signal and sound output by vibration of the second area of the display module, and 2 A first vibration drive signal and a second audio signal are generated by generating a first audio signal and a second audio signal based on the sound receiving module that generates the sound receiving signal and the audio source, and amplifying the first audio signal and the second audio signal, respectively. The driving circuit may include a driving circuit that generates a vibration driving signal, and the driving circuit may equalize the first audio signal based on a first sound reception signal that is changed according to a user's touch in a first area and generate a user's touch in a second area. The second audio signal may be equalized based on the second audio received signal that is changed according to .

According to some embodiments of the present application, the sound receiving module includes a first sound receiving element disposed on one side of a housing and generating a first sound receiving signal, and a second sound receiving element disposed on the other side of the housing and generating a second sound receiving signal. A sound receiving element may be included.

According to some embodiments of the present application, the driving circuit unit generates a first audio signal and a second audio signal based on an audio source and amplifies each of the first audio signal and the second audio signal to generate the first vibration driving signal and the second audio signal. An audio processing unit that generates a vibration driving signal, and a current sound output signal corresponding to sound output by vibration of a first area of the display panel and a first sound receiving signal supplied from the first sound receiving element. 1. An equalizing control signal is generated, and a second equalization is performed according to a comparison result between a current sound output signal corresponding to sound output by vibration of a second area of the display panel and a second sound reception signal supplied from a second sound receiving element. It may include a control unit that generates a control signal, and the audio processing unit may equalize the first and second audio signals respectively according to the first and second equalizing control signals.

According to some embodiments of the present application, the driving circuit unit may generate a first vibration driving signal and a second vibration driving signal by synthesizing a high-frequency identification signal with each of the first audio signal and the second audio signal, and receive the first sound The first audio signal may be equalized based on a level change of the high frequency identification signal included in the first audio reception signal supplied from the device, and the high frequency identification signal included in the second audio reception signal supplied from the second audio reception device. The second audio signal may be equalized based on the level change of .

According to some embodiments of the present application, the driving circuit unit generates a first audio signal and a second audio signal based on an audio source and amplifies the first audio signal and the second audio signal, respectively, to generate the first vibration driving signal and the second audio signal. An audio processing unit that generates a vibration drive signal and generates a first equalizing control signal based on a level change of a high-frequency identification signal included in the first sound reception signal supplied from the first sound reception element, and It may include a control unit for generating a second equalizing control signal based on a level change of a high frequency identification signal included in the supplied second sound reception signal, and the audio processing unit generates a first equalization control signal according to each of the first and second equalizing control signals. and equalizing each of the second audio signals.

According to some embodiments of the present application, the audio processing unit may include an audio generation unit generating an audio signal from an audio source, and an audio amplifier unit generating a vibration driving signal by amplifying the audio signal supplied from the audio generation unit, The audio generating unit may include an equalizer that equalizes the audio signal according to the equalizing control signal.

According to some embodiments of the present application, the audio processing unit generates first and second audio signals from an audio source, and amplifies each of the first and second audio signals supplied from the audio generation unit to generate the first vibration. It may include an audio amplifier unit that generates a driving signal and a second vibration component signal, and the audio generation unit may include an equalizer that equalizes the first and second audio signals according to the first and second equalizing control signals, respectively. .

According to some embodiments of the present application, the high frequency identification signal may have an inaudible frequency.

The features, structures, effects, etc. described in the above examples of the present application are included in at least one example of the present application, and are not necessarily limited to only one example. Furthermore, the features, structures, effects, etc. exemplified in at least one example of this application can be combined or modified with respect to other examples by those skilled in the art to which this application belongs. Therefore, contents related to these combinations and variations should be construed as being included in the scope of the present application.

The present application described above is not limited to the above-described embodiments and the accompanying drawings, and it is common in the technical field to which this application belongs that various substitutions, modifications, and changes are possible without departing from the technical details of the present application. It will be clear to those who have knowledge of Therefore, the scope of the present application is indicated by the following claims, and all changes or modifications derived from the meaning and scope of the claims and equivalent concepts should be interpreted as being included in the scope of the present application.

100: display module 110: display panel
130: touch panel 200: vibration module
210: first vibration element 230: second vibration element
300: driving circuit unit 330: touch driving circuit
340: force driving circuit 350: control unit
370: audio processing unit 371: audio generation unit
373: audio amplifier unit 400: housing
500: cover window 600: rear cover
700: pressure sensor 800: sound receiving module
810: first sound receiving element 830: second sound receiving element

Claims (12)

a display module having a display panel and a touch panel;
a driving circuit unit generating a vibration driving signal by amplifying the audio signal;
a vibration module outputting sound to the front of the display panel according to the vibration driving signal; and
It includes a plurality of pressure sensors that generate force sensing signals corresponding to a touch force applied to the display module according to a user's touch,
The electronic device, wherein the driving circuit unit detects a touch force level through the force sensing signal and equalizes the audio signal based on an equalizing control signal generated corresponding to the detected touch force level.
delete According to claim 1,
The driving circuit part,
a force driving circuit generating the force sensing signal based on an output signal of each of the plurality of pressure sensors;
a controller configured to detect the touch force level based on the force sensing signal and generate the equalizing control signal corresponding to the detected touch force level; and
and an audio processing unit configured to amplify the audio signal to generate the vibration drive signal, provide the same to the vibration module, and equalize the audio signal according to the equalizing control signal supplied from the control unit.
According to claim 1,
The drive circuit unit generates first and second vibration drive signals;
The vibration module includes a first vibration element for vibrating the first region of the display module according to the first vibration driving signal and a second vibration element for vibrating the second region of the display module according to the second vibration driving signal. Including, electronic devices.
According to claim 4,
The driving circuit unit detects first and second touch force levels through the force sensing signal, and based on first and second equalizing control signals generated corresponding to the first and second touch force levels, An electronic device that equalizes each of the first and second audio signals.
a display module having a display panel and a touch panel;
a driving circuit unit generating a vibration driving signal by amplifying the audio signal;
a vibration module outputting sound to the front of the display panel according to the vibration driving signal; and
And a sound receiving module for receiving the sound and generating a sound reception signal,
The electronic device of claim 1 , wherein the driving circuit unit equalizes the audio signal based on a comparison result between a current sound output signal corresponding to the sound and the sound reception signal provided from the sound reception module.
delete According to claim 6,
The driving circuit part,
a control unit generating an equalizing control signal according to a comparison result between the current audio output signal and the audio reception signal; and
and an audio processing unit configured to amplify the audio signal to generate the vibration drive signal, provide the same to the vibration module, and equalize the audio signal according to the equalizing control signal supplied from the control unit.
According to claim 6,
The driving circuit unit synthesizes a high-frequency identification signal with the audio signal and provides it to the vibration module, and generates the audio signal based on a level change of the high-frequency identification signal included in the sound reception signal provided from the sound reception module. Equalizing electronic devices.
According to claim 9,
The driving circuit part,
an audio processing unit configured to provide a vibration driving signal generated by combining the audio signal with the high frequency identification signal to the vibration module; and
And a control unit for generating an equalizing control signal based on a level change of the high-frequency identification signal included in the sound reception signal provided from the sound reception module,
The electronic device of claim 1 , wherein the audio processing unit equalizes the audio signal according to the equalizing control signal supplied from the control unit.
According to claim 6,
The driving circuit unit amplifies the first and second audio signals to generate first and second vibration driving signals, respectively;
The vibration module includes a first vibration element for vibrating the first region of the display module according to the first vibration driving signal and a second vibration element for vibrating the second region of the display module according to the second vibration driving signal. include,
The sound receiving module receives the sound output by the vibration of the first area and a first sound receiving element which generates a first sound reception signal by receiving the sound output by the vibration of the first area and generates a first sound reception signal. 2 An electronic device including a second sound receiving element for generating a sound receiving signal.
According to claim 11,
the driving circuit
equalizing the first audio signal based on a comparison result between a current sound output signal corresponding to the sound output by the vibration of the first region and the first sound reception signal provided from the first sound receiving element;
Equalizing the second audio signal based on a comparison result between a current sound output signal corresponding to the sound output by the vibration of the second region and the second sound reception signal provided from the second sound receiving element, Electronics.

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