KR20200008171A - Display apparatus and computing apparatus - Google Patents

Abstract

The present invention relates to a display apparatus capable of outputting high quality sound and a computing apparatus using the same. The display apparatus capable of outputting high quality sound according to the present invention comprises: a display module including a display panel displaying an image; a vibration plate placed on a rear surface of the display module; a vibration module configured to vibrate the vibration plate; and a pad disposed adjacent to the vibration module, wherein the display panel can output sound by vibrating according to the vibration of the vibrating plate.

Description

DISPLAY APPARATUS AND COMPUTING APPARATUS}

The present application relates to a display device and a computing device using the same.

Generally, the display device is an electronic product or home appliance such as a television, a monitor, a notebook computer, a smartphone, a tablet computer, an electronic notebook, an electronic pad, a wearable device, a watch phone, a portable information device, a navigation device, or a vehicle control display device. It is mounted on and used as a screen for displaying images.

Typical display apparatuses include a display panel for displaying an image, and an acoustic apparatus for outputting sound associated with the image.

However, display devices such as televisions and monitors degrade sound quality due to interference between sounds reflected from a wall or the ground because the sound output from the sound device proceeds to the rear or the bottom of the display panel, thereby reducing the viewer's immersion. There is a problem.

In addition, acoustic devices (or speakers) of general computing devices, such as notebook computers or tablet computers, are difficult to implement high sound quality, and in particular, there is a disadvantage that they are not rich in low-frequency bass sound, and due to the miniaturization of light weight and miniaturization of the system main body, Due to this, there is a disadvantage in that it is difficult to implement a low pitch of 1 kHz and a high pitch of 4 kHz or more. Furthermore, since the sound device of a general computing device is disposed on the lower side of the keyboard, the bottom of the main body, the left / right side, and the like, and is spaced apart from the screen, the sound device decreases the viewer's immersion due to heterogeneity (or dissonance) due to the distance between the image and the sound. There is a problem. In other words, the speaker of a general computing device has a problem in that the sound output direction does not face the viewer's ear, and the sound of the mid-high range of 2kHz or more with strong straightness is not directly transmitted to the viewer and is lost or distorted.

The present application is to provide a display device capable of high-quality sound output and a computing device using the same.

The display device according to the present application includes a display module having a display panel, a vibration plate coupled to the display module, and a vibration module disposed on the vibration plate, and the display panel vibrates according to the vibration of the vibration plate to output sound forward. can do.

The computing device according to the present application includes a hinge portion installed between the system body and the display device and rotatably supporting the display device, wherein the display device includes a display module having a display panel, a vibration plate coupled to the display module, and a vibration plate. It includes a vibration module disposed, the display panel may be vibrated in accordance with the vibration of the vibration plate to output a sound forward.

The display device and the computing device using the same according to the present application can output a wide range and high-quality sound by outputting the sound to the front of the display panel, can have a sound field that fills the entire screen, the image and sound Or coincidence) to improve viewer immersion.

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 cross-sectional view schematically illustrating a display device according to an example of the present application.
2 is a cross-sectional view schematically illustrating a display device according to another example of the present application.
3 is a diagram illustrating a computing device according to an example of the present application.
4 is a cross-sectional view of the display device illustrating a cross section of the line II ′ illustrated in FIG. 3.
FIG. 5 is a cross-sectional view of the display device illustrating a cross section of the line II-II ′ illustrated in FIG. 3.
6 is a rear view illustrating a rear surface of the display module illustrated in FIG. 4.
7 is a diagram for describing a circuit connection structure of a system main body, a printed circuit board, and a vibration module according to an example of the present application.
8 is a diagram for describing a circuit connection structure of a system main body, a printed circuit board, and a vibration module according to another example of the present application.
9 is a graph illustrating a comparison of sound output characteristics between a computing device of a comparative example and a computing device according to an example of the present application.
10, 11, 12, and 13 are different cross-sectional views of the line II ′ shown in FIG. 3.
FIG. 14 is a cross-sectional view for describing the vibration device illustrated in FIG. 13.
15, 16, and 17 are different cross-sectional views of the line II ′ shown in FIG. 3.
18 is a diagram for describing a computing device according to another example of the present application.
19 is a plan view illustrating the display module illustrated in FIG. 18.
20 is a cross-sectional view taken along the line III-III ′ shown in FIG. 19.
21 is a perspective view of a computing device according to another example of the present application.
22 is a perspective view illustrating a display device according to an example of the present application.
23 is a perspective view illustrating a display device according to another example of the present application.

Advantages and features of the present application, and a method of achieving them will be apparent with reference to the examples described below in detail in conjunction with the accompanying drawings. However, the present application is not limited to the examples disclosed below, but may be implemented in various forms, and only one example of the present application is intended to complete the disclosure of the present application, and is commonly used in the art to which the present invention belongs. It is provided to fully inform those skilled in the art of the scope of the invention, and the invention of the present application is defined only by the scope of the claims.

Shapes, sizes, ratios, angles, numbers, and the like disclosed in the drawings for describing the example of the present application are exemplary, and thus the present application is not limited to the illustrated items. Like reference numerals refer to like elements throughout. In addition, in describing the example of the present application, when it is determined that the detailed description of the related known technology may unnecessarily obscure the subject matter of the present application, the detailed description thereof will be omitted.

In the case where 'comprises', 'haves', 'consists of' and the like mentioned in the present specification are used, other parts may be added unless 'only' is used. In the case where the component is expressed in the singular, the plural includes the plural unless specifically stated otherwise.

In interpreting a component, it is interpreted to include an error range even if there is no separate description.

In the case of the description of the positional relationship, for example, if the positional relationship of the two parts is described as 'on', 'upper', 'lower', 'next to', etc. Alternatively, one or more other parts may be located between the two parts unless 'direct' is used.

In the case of a description of a temporal relationship, for example, if the temporal after-term relationship is described as 'after', 'following', 'after', 'before', or the like, 'directly' or 'direct' This may include cases that are not continuous unless used.

The first, second, etc. are used to describe various components, but 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 a second component within the technical spirit of the present application.

The term "at least one" should be understood to include all combinations which can be presented from one or more related items. For example, the meaning of "at least one of the first item, the second item, and the third item" means two items of the first item, the second item, or the third item, as well as two of the first item, the second item, and the third item, respectively. It can mean a combination of all items that can be presented from more than one.

Each of the features of the various examples of the present application may be combined or combined with each other, partly or wholly, and technically various interlocking and driving are possible, and each of the examples may be independently implemented with respect to each other or may be implemented in association with each other. .

Hereinafter, exemplary embodiments of a display device and a computing device using the same 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 reference numerals as much as possible even though they are shown in different drawings.

1 is a cross-sectional view schematically illustrating a display device according to an example of the present application.

Referring to FIG. 1, the display apparatus according to the present example includes a display module 100, a vibration plate 200, a vibration module 300, and a system rear cover 910.

The display module 100 includes a display panel 110 for displaying an image.

The display panel 110 may be any one of a flat panel display panel such as a liquid crystal display panel, a light emitting display panel, an electrophoretic display panel, a micro light emitting diode display panel, a plasma display panel, an electrowetting display panel, or a quantum dot light emitting display panel. have.

The vibration plate 200 is coupled to the display module 100. The vibrating plate 200 according to an example may be disposed to face the rear surface of the display module 100.

Vibration plate 200 according to the present application may be made of any one material of magnesium (Mg) alloy material, magnesium lithium (Li) alloy material and aluminum (Al) alloy material. For example, the magnesium alloy material may contain at least one of aluminum, zinc (Zn), and manganese (Mn). Magnesium alloy material is the lightest material among the metal materials of mechanical structures, has relatively high specific rigidity (strength / specific gravity) and relatively high vibration damping ability (capable of absorbing vibration and gradually reducing vibration), temperature and time. It has the property of excellent dimensional stability against changes in.

Vibration plate 200 according to the present application is made of any one material of magnesium (Mg) alloy material, magnesium lithium (Li) alloy material and aluminum (Al) alloy material, the fast negative reactivity according to the low density (response speed It is possible to realize fine sound due to), high specific stiffness to realize sound in the whole range from low to high frequency through fast sound speed, and high vibration attenuation, so there is no unnecessary vibration The original sound can be reproduced due to the suppression of the reflected sound or the resonant sound, and the high elasticity can realize a high-resolution sound of 40 kHz or more.

The vibration plate 200 according to an example is disposed on the rear surface of the display module 100 via the plate fixing member 250 to cover the rear surface of the display module 100 and to be spaced apart from the rear surface of the display module 100. . For example, the vibration plate 200 may have a thickness of 0.1 mm to 1.0 mm to improve the sound of the high range. Here, when the thickness of the vibration plate 200 is less than 0.1mm, there is a difficulty in maintaining flatness, there is a problem such as breakage when the vibration is torn, and when the thickness of the vibration plate 200 exceeds 1.0mm, high frequency band It is suitable for realizing the low range sound rather than the sound of.

The plate fixing member 250 is interposed between the front edge of the vibrating plate 200 and the rear of the display module 100 to fix the vibrating plate 200 to the back of the display module 100, and to display the display module. An air gap AG is provided between the rear surface of the 100 and the vibration plate 200. The air gap AG may be defined as a vibration space for vibration of the display module 100 according to vibration of the vibration plate 200 and vibration of the vibration plate 200.

The plate fixing member 250 according to an example may be a double-sided adhesive tape or adhesive resin. The double sided adhesive tape may comprise pads or foam pads having a constant height (or thickness). The adhesive resin may include an acrylic-based material or a urethane-based material, and preferably, in order to minimize the vibration of the vibrating plate 200 directly transmitted to the display module 100, the adhesive resin may be relatively lower than the acrylic-based material. It is preferable that it is made of a urethane-based material having ductile properties.

The vibration module 300 is disposed on the vibration plate 200 to vibrate the vibration plate 200 by vibrating according to an input sound driving signal. The vibration module 300 according to the present application includes a first vibration element 310 and a second vibration element 330.

The first vibrating element 310 is attached to one side of the vibrating plate 200 via the element adhesive member 350. The second vibrating element 330 is attached to the other side of the vibrating plate 200 via the device adhesive member 350. The device adhesive member 350 may be a double-sided tape or a naturally curable adhesive. Here, the device adhesive member 350 may be made of a thermosetting adhesive or a photocurable adhesive. In this case, the characteristics of the vibrating device 310 may be degraded by the heat of the curing process of the device adhesive member 350.

Each of the first vibrating element 310 and the second vibrating element 330 according to an example faces the front surface of the vibrating plate 200 to face the rear surface of the display module 100 with the air gap AG therebetween. It can be attached to. In this case, in order to prevent physical contact between the vibrating elements 310 and 330 which vibrate according to the input sound driving signal and the rear surface of the display module 100, the vibrating elements 310 and 330 may be formed of the display module 100. The distance from the rear surface is set by a predetermined distance, and the separation distance between the vibrating elements 310 and 330 and the display module 100 may be set by the height (or thickness) of the plate fixing member 250. Accordingly, the plate fixing member 250 has a height that is relatively higher than the distance between the front surface of the vibrating plate 200 and the front surfaces of the vibrating elements 310 and 330 based on the thickness direction Z of the display device. It is configured to have a thickness (or thickness) to prevent the damage or damage of the vibration device (310, 330) due to the physical direct contact between the vibration device (310, 330) and the display module 100.

Optionally, each of the first vibrating element 310 and the second vibrating element 330 may be attached to a rear surface of the vibrating plate 200 to face the system rear cover 910.

Each of the first vibrating element 310 and the second vibrating element 330 according to an example may include a piezoelectric material layer having a piezoelectric effect, a first electrode disposed in front of the piezoelectric material layer, and a piezoelectric material layer. It may include a second electrode disposed on the back.

The piezoelectric material layer includes a piezoelectric material that generates vibration by an electric field. Here, the piezoelectric material has a potential difference due to dielectric polarization caused by a change in the relative position of positive and negative ions while pressure or torsion occurs in the crystal structure by an external force. Vibration is generated by an electric field. The piezoelectric material of the vibrating element 310 according to an embodiment may be any one of a ceramic material, a polymer material, and a semiconductor material, or may include two or more mixed materials. Preferably, the ceramic piezoelectric material having a wide frequency response characteristic Can be done. Here, the ceramic piezoelectric material may include lead zirconate titanate (PZT) or barium carbonate (BaTiO ₃ ), and the like. The polymer piezoelectric material may include polyvinylidene difluoride (PVDF), and the semiconductor piezoelectric material may be zinc oxide (ZnO). ) And cadmium sulfide (CdS).

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

The system rear cover 910 accommodates the vibration plate 200 to which the vibration module 300 is coupled and the display module 100.

The system back cover 910 according to an example may include a bottom structure 911 and a sidewall structure 913. The bottom structure 911 is an outermost rear structure located at the rear of the display device. The bottom structure 911 supports the rear edge portion of the display module 100 and covers the rear surface of the vibration plate 200. The sidewall structure 913 is an outermost side structure positioned at the side of the display device and is provided at an edge of the bottom structure 911 to cover side surfaces of the display module 100 and side surfaces of the vibrating plate 200.

The display device according to the present example may further include a sound absorbing member 500. The sound absorbing member 500 is disposed on the rear surface of the vibration plate 200. The sound absorbing member 500 according to an example may be installed on the bottom structure 911 of the system rear cover 910 to face the rear surface of the vibration plate 200. The sound absorbing member 500 according to an example may include a nonwoven fabric or a foam pad. The sound absorbing member 500 attenuates the resonance of the low sound generated from the rear surface of the vibration plate 200, thereby minimizing the booming phenomenon caused by the interference between the low sound and improving sound quality. In addition, the sound absorbing member 500 prevents direct contact between the bottom structure 911 of the system rear cover 910 and the vibration plate 200 when the vibration plate 200 vibrates, and thereby the system rear cover 910. The vibration of the display device due to the direct contact between the vibration plate and the 200 is prevented.

The display device according to the present example further includes a buffer member 600. The buffer member 600 is installed on the vibration plate 200 to be positioned around the vibration module 300. The buffer member 600 according to an example may include a foam pad. The shock absorbing member 600 prevents physical contact between the vibration module 300 and the display module 100, thereby causing damage to the vibration module 300 due to physical contact between the vibration module 300 and the display module 100. Prevent breakage. To this end, an upper surface of the shock absorbing member 600 is positioned between the upper surface of the vibration module 300 and the rear surface of the display module 100. That is, based on the front surface of the vibration plate 200, the height of the shock absorbing member 600 is set higher than the height of the vibration module 300.

The shock absorbing member 600 according to an example may have a polygonal shape or a circle shape surrounding each of the vibration module 300, that is, the first vibration element 310 and the second vibration element 330, but is not limited thereto. In addition, the vibration devices 310 and 330 may have various shapes such as a line or a point shape to prevent physical contact between the display device 100 and the display module 100.

The display device according to the present example as shown in the display device 100 vibrating in accordance with the vibration of the vibration plate 200 and the vibration plate 200 and the vibration of the vibration module 300 according to the input sound drive signal. By including the sound (SW) generated in accordance with the vibration of the display module 100 can be output to the front of the display panel 110. That is, in the display device according to the present example, when the vibration module 300 vibrates by the sound driving signal, the sound pressure is applied to the air gap AG by the vibration of the vibration plate 200 according to the vibration of the vibration module 300. Is generated, the display module 100 vibrates by the sound pressure generated in the air gap AG, and the sound SW generated by the vibration of the display panel 110 according to the vibration of the display module 100 is generated. It is output to the front of the display panel 110. In other words, the display device according to the present embodiment is vibrated by the display panel 110 by the vibration of the vibration plate 200 according to the vibration of the vibration module 300, according to the vibration of the display panel 110 without a separate speaker The generated sound SW is output to the front of the display panel 110.

Therefore, the display device according to the present example outputs the sound SW generated by the vibration of the display panel 110 to the front rather than the rear and the lower side of the display panel 110, thereby enabling accurate sound transmission and improving sound quality. This can increase the immersion of viewers. The display device according to the present embodiment may output a wide range and high quality sound by vibrating the display panel 110 by the vibration of the large-area vibrating plate 200, and may have a sound field that fills the entire screen. Due to the harmony (or matching) of the sound and the viewer can improve the immersion of the viewer. In particular, the mid-range sound of 2kHz ~ 20kHz is strong straight and can be delivered to the viewer without loss or distortion only if it is output toward the viewer's ear. However, the mid-to-high range sound output from the mounted lower and / or rear speakers of the conventional display device may not be properly delivered to the viewer due to its output direction. On the other hand, since the display device according to the present embodiment outputs sound from the display panel 110 facing the viewer's ear, it is possible to directly transmit the sound of the mid-to-high range to the viewer without loss or distortion, thereby substantially close to the sound source. Sound can be provided to viewers.

2 is a cross-sectional view schematically illustrating a display device according to another example of the present application, in which the arrangement of the vibration plate is changed. Accordingly, in the following description, only the vibrating plate and the related components will be described, and redundant description of the same components will be omitted.

Referring to FIG. 2, in the display device according to the present example, the vibrating plate 200 is directly coupled to (or attached to) the rear surface of the display module 100. The vibrating plate 200 may be supported by the plate fixing member 250, but the plate fixing member 250 may be omitted because the vibrating plate 200 is attached to the display module 100.

The vibration module 300 according to the present example is attached to the rear surface of the vibration plate 200 facing the bottom structure 911 of the system rear cover 910 and vibrates the vibration plate 200 according to the input sound driving signal. . The vibration module 300 may include the first vibration device 310 and the second vibration device 330 as described above.

As described above, each of the first vibrating element 310 and the second vibrating element 330 is a piezoelectric material layer, a first electrode disposed on the front surface of the piezoelectric material layer, and a rear surface of the piezoelectric material layer. It may include a second electrode.

The display device according to the present example has the same effect as the display device shown in FIG. 1, but the vibration of the vibration plate 200 is directly transmitted to the display module 100 so that the display panel 110 vibrates sound. The sound quality or sound pressure of the (SW) can be further improved.

FIG. 3 is a diagram for describing a computing device according to an example of the present application, FIG. 4 is a cross-sectional view of a display device showing a cross-section taken along line II ′ of FIG. 3, and FIG. 5 is shown in FIG. 3. FIG. 6 is a cross-sectional view of a display device showing a cross section taken along the line II-II ', and FIG.

3 to 6, the computing device according to the present example includes a system body 10 and a display device 30 rotatably coupled to the system body 10 through a hinge portion 20. do.

The system main body 10 includes a main board, various circuits mounted on the main board, various storage media, peripheral devices, a keyboard, a power supply device, and the like. The various circuits mounted on the main board include a central control circuit for processing various information, an image processing circuit for processing data under the control of the central control circuit, a sound processing circuit for processing sound under the control of the central control circuit, and the like. It is composed. The system main body 10 processes various pieces of information and generates and provides video data and sound signals to the display device 30.

The hinge part 20 is installed between the system main body 10 and the display device 30 to rotatably support the lower side of the display device 30.

The display device 30 is rotatably installed on the hinge portion 20 to cover the upper surface of the system main body 10 or to have a predetermined angle from the upper surface of the system main body 10 with the hinge portion 20 as the rotation axis. Unfolds. The display device 30 displays an image corresponding to the video data according to the video data and the timing control signal provided from the system main body 10, and generates a sound SW corresponding to the sound signal provided from the system main body 10. Outputs Here, the sound signal may be synchronized with the video signal or not with the video signal.

The display device 30 according to an example may include a display module 100, a vibration plate 200, a vibration module 300, a system rear cover 910, and a system front cover 930.

The display module 100 includes a display panel 110, a panel driving circuit unit 120, a backlight unit 130, a panel guide 140, and a support cover 150.

The display panel 110 displays an image using light emitted from the backlight unit 130, and includes a lower substrate 111, an upper substrate 113, a lower polarizing member 115, and an upper polarizing member 117. ) May be included.

The lower substrate 111 is a thin film transistor array substrate, and includes a pixel array having a plurality of pixels formed for each pixel area intersected by a plurality of gate lines and a plurality of data lines. Each of the plurality of pixels includes a thin film transistor connected to a gate line and a data line, a pixel electrode connected to a thin film transistor, and a common electrode formed to be adjacent to the pixel electrode and supplied with a common voltage.

The lower substrate 111 further includes a pad part provided at the first edge and a gate driving circuit provided at the second edge.

The pad unit supplies a signal supplied from the outside to the pixel array and the gate driving circuit. For example, the pad unit may include a plurality of data pads connected to the plurality of data lines through a plurality of data link lines, and a plurality of gate input pads connected to the gate driving circuit through a gate control signal line.

The gate driving circuit may be embedded (or integrated) at a first edge of the lower substrate 111 so as to be connected one-to-one with a plurality of gate lines. In this case, the gate driving driver circuit may be a shift register including a transistor formed by the same process as the thin film transistor provided in the pixel region. Optionally, the gate driving circuit may be configured in the panel driving circuit 120 without being embedded in the lower substrate 111.

The upper substrate 113 is a color filter array substrate, and includes a pixel definition pattern defining an opening region overlapping each pixel region formed in the lower substrate 111, and a color filter layer formed in the opening region. The upper substrate 113 is bonded to the lower substrate 111 with the liquid crystal layer interposed therebetween by a sealant.

The liquid crystal layer is interposed between the lower substrate 111 and the upper substrate 113. The liquid crystal in which the arrangement direction of the liquid crystal molecules is changed according to an electric field formed by a data voltage and a common voltage applied to the pixel electrode for each pixel. Is done.

The lower polarizing member 115 is attached to the lower surface of the lower substrate 111 to polarize the light incident from the backlight unit 130 with the first polarization axis to irradiate the lower substrate 111.

The upper polarizing member 117 is attached to the upper surface of the upper substrate 113 to transmit the polarized light transmitted through the upper substrate 113 to the outside.

The display panel 110 displays an image according to light passing through the liquid crystal layer by driving the liquid crystal layer according to an electric field formed for each pixel by a data voltage and a common voltage applied to each pixel.

The panel driving circuit unit 120 is connected to a pad unit provided in the display panel 110 to display an image corresponding to the video data supplied from the system main body 10 on each pixel. The panel driving circuit unit 120 according to an example includes a plurality of data flexible circuit films 121, a plurality of data driving integrated circuits 123, a printed circuit board 125, and a timing control circuit 127.

Each of the plurality of data flexible circuit films 121 is attached to a pad part provided on the lower substrate 111 of the display panel 110 by a film attaching process. Each of the plurality of data flexible circuit films 121 is bent to surround side surfaces of each of the display panel 110 and the backlight unit 130, and is connected to the printed circuit board 125 at the rear surface of the support cover 150.

Each of the plurality of data driver integrated circuits 123 is separately mounted on each of the plurality of data flexible circuit films 121. The data driving integrated circuit 123 receives the pixel data and the data control signal provided from the timing control circuit 127, and converts the pixel data into an analog type pixel-specific data signal according to the data control signal to correspond to the corresponding data line. To feed. Optionally, each of the plurality of data driving integrated circuits 123 may be directly mounted to the first edge of the lower substrate 111 by a chip bonding process and connected to the plurality of data lines, in which case the plurality of data flexible circuit films Is omitted.

The printed circuit board 125 is connected to the plurality of data flexible circuit films 121. The printed circuit board 125 supports the timing control circuit 127 and serves to transfer signals and power between the components of the panel driving circuit unit 120. The printed circuit board 125 includes a user connector 125a connected to the system body 10 through a cable, and first and second sound output connectors 125b and 125c connected to the vibration module 300.

The timing control circuit 127 is mounted on the printed circuit board 125 and receives video data and timing synchronization signals provided from the system main body 10 through the user connector 125a of the printed circuit board 125. The timing control circuit 127 generates pixel data by aligning the image data to fit the pixel arrangement structure based on the timing synchronization signal, and provides the generated pixel data to the corresponding data driver integrated circuit 123. In addition, the timing control circuit 127 generates a data control signal and a gate control signal based on the timing synchronization signal, controls the driving timing of each of the plurality of data driver integrated circuits 123 through the data control signal, and The driving timing of the gate driving circuit is controlled through the control signal.

In addition, the panel driving circuit unit 120 may further include a plurality of data flexible circuit films and a plurality of gate driving integrated circuits. In this case, the lower substrate 111 of the display panel 110 further includes a gate pad part disposed at a third edge and having a plurality of gate pads connected to the plurality of gate lines through the plurality of gate link lines. Each of the plurality of gate flexible circuit films is attached to the gate pad part provided on the lower substrate 111 of the display panel 110 by a film attaching process. Each of the plurality of gate flexible circuit films may be bent to the side of the display panel 110. Each of the plurality of gate drive integrated circuits is individually mounted to each of the plurality of gate flexible circuit films. The gate driving integrated circuit receives a gate control signal supplied from the timing control circuit 127 through the gate input pad, generates a gate pulse according to the gate control signal, and supplies the gate control signal to the gate line in a predetermined order. In some embodiments, each of the plurality of gate driving integrated circuits may be directly mounted to the third edge of the lower substrate 111 by a chip bonding process to be connected to the plurality of gate lines, and may be connected to a gate input pad provided on the lower substrate 111. In this case, the plurality of gate flexible circuit films are omitted.

The backlight unit 130 is disposed on the rear of the display panel 110 and irradiates light on the rear of the display panel 110. The backlight unit 130 according to an example includes a light guide plate 131, a light source unit 133, a reflective sheet 135, and an optical sheet unit 137.

The light guide plate 131 is disposed to overlap the display panel 110 and includes a light incident surface provided on one side wall. The light guide plate 131 may include a light transmissive plastic or glass material. The light guide plate 131 propagates (or outputs) light incident from the light source unit 133 through the light incident surface toward the display panel 110.

The light source unit 133 irradiates light to the light incident surface provided on the light guide plate 131. The light source unit 133 according to an exemplary embodiment is mounted on the printed circuit board 133a for the light source and the plurality of light emitting diode elements 133b for irradiating light onto the light incident surface of the light guide plate 131. It includes. The light source unit 133 may be covered by the light source housing. The light source housing is disposed to cover the front surface of the panel guide 140 and the edge of the optical sheet 137 adjacent to each other with the light source 133 interposed therebetween to cover the top of the light source 133.

The reflective sheet 135 covers the rear surface of the light guide plate 131. The reflective sheet 135 reflects the light incident from the light guide plate 131 toward the light guide plate 131 to minimize the loss of light.

The optical sheet unit 137 is disposed on the front surface of the light guide plate 131 to improve luminance characteristics of light emitted from the light guide plate 131. The optical sheet unit 137 according to an example may include a lower diffusion sheet, a lower prism sheet, and an upper prism sheet, but is not limited thereto, and may include a diffusion sheet, a prism sheet, a dual brightness enhancement film, and a lenticular sheet. It may consist of one or more lamination combinations selected, or may consist of one composite sheet having the function of diffusing and condensing light. Since the present application outputs sound through the vibration of the display panel 110 in response to the vibration of the vibration plate 200, the loss generated in the process of transmitting the vibration generated from the vibration plate 200 to the display panel 110. This is preferably minimized, and for this purpose, the optical sheet portion according to the present application is more preferably composed of one composite sheet having a function of diffusing and condensing light.

The panel guide 140 is accommodated in the support cover 150 and supports the rear edge of the display panel 110 while supporting the light source unit 133. The panel guide 140 may include a panel support for supporting the rear edge of the display panel 110, and a cover coupling part formed concave from the outer surface of the panel support.

The support cover 150 supports the panel guide 140. The support cover 150 may be made of a metal material or a plastic material. However, the support cover 150 may be made of a metal material in order to secure rigidity of the liquid crystal display and heat dissipation of the backlight unit 130.

The support cover 150 according to an example includes a cover plate 151 and a cover sidewall 153.

The cover plate 151 covers the rear surface of the backlight unit 130 to support the reflective sheet 135 of the backlight unit 130 and to support the panel guide 140. In this case, the panel guide 140 may be attached to the cover plate 151 through a double-sided tape.

The cover sidewall 153 is provided vertically from the front edge of the cover plate 151 to surround the outer surface of the panel guide 140. In this case, the cover sidewall 153 is inserted into the cover coupling portion provided in the panel guide 140.

The cover plate 151 may include a central opening 151a overlapping the remaining portion except for the rear edge of the display panel 110 or the rear edge of the backlight unit 130. In this case, the cover plate 151 overlaps the rear edge of the display panel 110 or the rear edge of the backlight unit 130, and the weight may be reduced by the size of the central opening 151a. In this case, a double-sided tape may be interposed between the cover plate 151 and the reflective sheet 135.

In addition, the display module 100 according to the present example further includes a light blocking member 160. The light blocking member 160 includes a front surface of the panel guide 140 adjacent to the light source 133, a printed circuit board 133a for the light source of the light source 133, and an optical sheet 137 adjacent to the light source 133. By being disposed to cover the edge of the light source to prevent light leakage of the 133. One side of the light blocking member 160 may extend to cover the side of the panel guide 140 adjacent to the light source unit 133, the cover sidewall 153 of the support cover 150, and the rear edge of the cover plate 151. The light blocking member 160 may be a single-sided tape having a black color.

The display module 100 according to the present example may further include a panel coupling member 170. The panel coupling member 170 is interposed between the rear edge of the display panel 110 and the panel guide 140 to attach the display panel 110 to the panel guide 140. That is, the display panel 110 may be attached to the panel guide 140 via the panel coupling member 170. In this case, the panel coupling member 170 overlapping the light source unit 130 is attached to the light blocking member 160. The panel coupling member 170 may be a double-sided tape or a double-sided foam tape.

The display module 100 displays an image using the light provided from the backlight unit 130 to the display panel 110, and according to the vibration of the display panel 110 in response to the vibration of the vibration plate 200. The generated sound SW is output in front of the display panel 110, that is, toward the viewer's face. In this case, the display module 100 preferably has a thin (or slim) structure of 4 mm or less so as to have the same vibration amount as the vibration plate 200.

The vibration plate 200 is coupled to the rear surface of the display module 100. That is, the vibration plate 200 is coupled to the rear surface of the support cover 150 via the plate fixing member 250 to cover the opening 151a of the support cover 150. As described above, the vibrating plate 200 is made of any one of a magnesium alloy material, a magnesium lithium alloy material, and an aluminum alloy material, and redundant description thereof will be omitted.

The plate fixing member 250 is interposed between the cover plate 151 and the vibration plate 200 of the support cover 150, and supports the display module 100, that is, the reflective sheet 135 while supporting the vibration plate 200. ) And an air gap AG between the vibration plate 200. Here, the air gap AG may be defined as a vibration space for vibration of the vibration plate 200.

The vibration module 300 is disposed on the front surface of the vibration plate 200 to face the reflective sheet 135 of the backlight unit 130 through the opening 151a of the support cover 150. The vibrating module 300 vibrates the vibrating plate 200 by vibrating according to an acoustic driving signal input directly from the system main body 10 or indirectly through the printed circuit board 125 of the display module 100. . The vibration module 300 according to the present example includes a first vibration element 310 and a second vibration element 330 attached to the front surface of the vibration plate 200 through the element adhesive member 350. do. Each of the first vibrating element 310 and the second vibrating element 330 includes the above-described piezoelectric material layer, and a redundant description thereof will be omitted.

The rear surface of the vibrating plate 200 may be divided into first to third regions. In this case, the central portion of the first vibrating element 310 is disposed at the central portion of the first region of the vibrating plate 200, and the central portion of the second vibrating element 330 is defined at the third region of the vibrating plate 200. It may be disposed in the center. That is, the first vibrating element 310 and the second vibrating element 330 may be arranged to be symmetrical with respect to the center of the vibrating plate 200, but are not necessarily limited thereto, and may be asymmetric with each other.

The system rear cover 910 accommodates the vibration plate 200 to which the vibration module 300 is coupled and the display module 100. The system back cover 910 according to an example may include a bottom structure 911 and a sidewall structure 913.

The bottom structure 911 is an outermost rear structure located at the rear of the display device. The bottom structure 911 supports the rear edge portion of the support cover 150 and covers the rear surface of the vibration plate 200. At this time, the bottom structure 911 is spaced apart from the vibration plate 200 by a predetermined distance so as not to be in physical contact with the vibration plate 200 during the vibration of the vibration plate 200.

The sidewall structure 913 is an outermost side structure positioned at the side of the display device and is provided at an edge of the bottom structure 911 to cover side surfaces of the display module 100 and side surfaces of the vibrating plate 200.

The system front cover 930 is disposed to cover the front edge of the display panel 110. That is, the system front cover 930 hides the non-display area of the display panel 110 and the panel driving circuit unit 120. The system front cover 930 is coupled to the sidewall structure 913 of the system rear cover 910 by a fastening member such as a hook to cover the front surface of the display module 100 except for the display area of the display panel 110. .

The display device according to the present example may further include a sound absorbing member 500. The sound absorbing member 500 is disposed on the rear surface of the vibration plate 200. The sound absorbing member 500 according to an example is installed on the bottom structure 911 of the system rear cover 910 so as to face the rear surface of the vibrating plate 200, and the description thereof will not be repeated. do.

In addition, the display device according to the present example further includes a buffer member 600. The shock absorbing member 600 is installed on the vibration plate 200 to be positioned around the vibration elements 310 and 330. The shock absorbing member 600 is set based on the front surface of the vibration plate 200, and the height of the shock absorbing member 600 is set higher than the height of the vibration elements 310 and 330. The shock absorbing member 600 according to an example may include a foam pad, and may have a polygonal shape or a circular shape surrounding the vibration elements 310 and 330, but is not limited thereto. The vibration elements 310 and 330 may be used. And a shape such as a line or a point that can prevent physical contact between the reflective sheet 135 of the backlight unit 130 and the like.

7 is a diagram for describing a circuit connection structure of a system main body, a printed circuit board, and a vibration module according to an example of the present application.

Referring to FIG. 7 and FIG. 3, the computing device according to the present example may generate an acoustic driving signal in the system main body 10 and supply the acoustic driving signal to the vibration module 300 through the display module 100. That is, the vibration module 300 may be driven by the sound driving signal supplied from the system main body 10 through the display module 100.

The main board 15 of the system main body 10 according to the present example includes a sound processing circuit 15a, an audio amplifier 15b, a video processing circuit 15c, and a system connector 15d.

The sound processing circuit 15a generates a sound signal from digital sound data under the control of the central control circuit. This sound processing circuit 15a may be represented by a sound card.

The audio amplifier 15b amplifies the sound signal supplied from the sound processing circuit 15a to generate a sound driving signal. The audio amplifier 15b according to the present application may generate an acoustic driving signal by amplifying the acoustic line input signal supplied from the sound processing circuit 15a to the earphone terminal mounted on the main board 15. This acoustic driving signal is supplied to the system connector 15d provided on the main board 15.

The sound driving signal according to an example may include a left sound driving signal having a positive left sound driving signal and a negative left driving signal, and a right driving signal having a positive right acoustic driving signal and a negative right driving signal. Can be. The acoustic driving signal according to another example may include a positive left acoustic driving signal, a positive right acoustic driving signal, and a negative ground signal.

The video processing circuit 15c generates video data from an image source and outputs it to the system connector 15d.

The system connector 15d includes display signal terminals and audio signal terminals. The display signal terminals may include data interface signal terminals for transmitting video data generated by the video processing circuit 15c to the printed circuit board 125, panel driving power terminals, and backlight driving power terminals. It may include. The audio signal terminals may include sound output terminals for transmitting the acoustic driving signal generated by the audio amplifier 15b to the printed circuit board 125.

The system connector 15d is connected to the printed circuit board 125 of the display module 100 through the user cable 190. The user cable 190 includes a plurality of signal wires connected one-to-one with terminals provided in the system connector 15d. In particular, the user cable 190 includes a left sound signal line LSL, a right sound signal line RSL, and a sound ground signal line SGL connected to the sound output terminal of the system connector 15d.

The printed circuit board 125 of the display module 100 includes a user connector 125a, a first sound output connector 125b, and a second sound output connector 125c.

The user connector 125a is connected to the system connector 15d of the main board 15 through the user cable 190, and includes various kinds of acoustic signals supplied from the main board 15 through the user cable 190. Receive the signal.

The first sound output connector 125b is connected to the user connector 125a through a signal transmission line provided on the printed circuit board 125, and receives the left sound driving signal supplied through the user connector 125a from the first vibration device. Output to 310. The first sound output connector 125b is connected to the first vibrating element 310 through the first flexible circuit cable 312. Accordingly, the first vibrating element 310 is formed according to the positive left acoustic drive signal and the negative negative left drive signal supplied from the first acoustic output connector 125b through the first flexible circuit cable 312 or the positive electrode. The vibrating plate is vibrated by vibrating by an electric field formed according to the left acoustic drive signal and the negative ground signal of the castle.

The second sound output connector 125c is connected to the user connector 125a through a signal transmission line provided on the printed circuit board 125, and receives a right sound driving signal supplied through the user connector 125a from the second vibration device. Output to (330). The second sound output connector 125c is connected to the second vibrating element 330 through the second flexible circuit cable 332. Accordingly, the second vibrating element 330 is formed according to the positive right driving signal and the negative right driving signal supplied from the second sound output connector 125c through the second flexible circuit cable 332 or the positive electrode. The vibrating plate is vibrated by vibrating by an electric field formed according to the right acoustic drive signal of the castle and the negative ground signal.

In this example, the acoustic drive signal is supplied to the vibration module 300 through the user cable 190 connected between the display module 100 and the main board 15 and the printed circuit board 125 of the display module 100. As a result, the acoustic driving signal may be supplied to the vibration module 300 without a separate cable.

Meanwhile, the flexible circuit cables 312 and 332 of the vibration module 300 may be directly connected to the main board 15 without being connected to the printed circuit board 125 of the display module 100. In this case, the vibration module ( 300 may be driven according to an acoustic driving signal output from the audio amplifier 15b of the main board 15. However, when the flexible circuit cables 312 and 332 of the vibration module 300 are directly connected to the main board 15, the flexible circuit cables 312 and 332 of the vibration module 300 are connected to the hinge portion 20. Since it must be connected to the main board 15 disposed in the system main body 10, the cost is increased due to the increase in the length of the flexible circuit cables 312, 332, and the assemblability between the system main body 10 and the display device 30 This can be degraded. Accordingly, the flexible circuit cables 312 and 332 of the vibration module 300 are preferably connected to the printed circuit board 125 of the display module 100 as described above.

FIG. 8 is a view for explaining a circuit connection structure of a system main body, a printed circuit board, and a vibration module according to another example of the present application, which is configured by changing an arrangement position of the audio amplifier shown in FIG. 7. Accordingly, in the following description, only the audio amplifier and the related components will be described, and redundant description of the remaining components will be omitted.

Referring to FIG. 8 and FIG. 3, the computing device according to the present example may generate an acoustic driving signal from the display module 100 and supply the acoustic driving signal to the vibration module 300. That is, the vibration module 300 may be driven by the sound driving signal generated and supplied by the display module 100.

The main board 15 of the system main body 10 according to the present example includes a sound processing circuit 15a, a video processing circuit 15c, and a system connector 15d. The main board 15 omits the audio amplifier from the main board shown in FIG. 7, and supplies the sound signal generated by the sound processing circuit 15a to the display module 100 through the system connector 15d without amplification. . Accordingly, the main board 15 according to the present example displays two or more audio driving voltages and two or more audio ground voltages for driving the vibration module 300 together with the sound signals generated by the sound processing circuit 15a. Supply to module 100. To this end, the audio signal terminals of the system connector 15d may further include two or more audio driving voltage terminals and two or more audio ground voltage terminals.

The printed circuit board 125 of the display module 100 includes a user connector 125a, a first audio amplifier 128, a second audio amplifier 129, a first sound output connector 125b, and a second sound output. Connector 125c.

The user connector 125a is connected to the system connector 15d of the main board 15 through the user cable 190, and includes various kinds of acoustic signals supplied from the main board 15 through the user cable 190. Receive the signal.

The first audio amplifier 128 is connected to the user connector 125a through a signal transmission line provided on the printed circuit board 125. The first audio amplifier 128 receives a left acoustic signal, two or more audio driving voltages, and two or more audio ground voltages supplied through the user connector 125a, and receives two or more audio driving voltages and two received audio audio voltages. The left sound signal may be amplified using the above audio ground voltage to generate a left sound driving signal. As another example, the second audio amplifier 129 receives a left sound signal and two or more backlight driving powers supplied through the user connector 125a, and receives the left sound signal using two or more backlight driving powers. The left sound driving signal can be amplified. In this case, the main board 15 receives two or more audio driving voltages and two or more audio ground voltages, and does not output the two or more audio driving voltages and two or more audio ground voltages to the system connector 15d. As a result, the number of terminals of each of the system connector 15d and the user connector 125a may be reduced.

The second audio amplifier 129 is connected to the user connector 125a through a signal transmission line provided on the printed circuit board 125. As an example, the second audio amplifier 129 receives a right sound signal and two or more audio driving voltages and two or more audio ground voltages supplied through the user connector 125a, and receives the two or more audio driving voltages. And the right sound signal may be amplified using the at least two audio ground voltages to generate the right sound driving signal. As another example, the second audio amplifier 129 receives a right sound signal and two or more backlight driving powers supplied through the user connector 125a, and receives the right sound signal using two or more backlight driving powers. It may be amplified to generate a right acoustic driving signal.

The first sound output connector 125b is connected to the first audio amplifier 128 through a signal transmission line provided on the printed circuit board 125 and outputs a left sound driving signal supplied from the first audio amplifier 128. 1 is output to the vibration device (310). The first sound output connector 125b is connected to the first vibrating element 310 through the first flexible circuit cable 312. Accordingly, the first vibrating element 310 is formed according to the positive left acoustic drive signal and the negative negative left drive signal supplied from the first acoustic output connector 125b through the first flexible circuit cable 312 or the positive electrode. The vibrating plate is vibrated by vibrating by an electric field formed according to the left acoustic drive signal and the negative ground signal of the castle.

The second sound output connector 125c is connected to the second audio amplifier 129 through a signal transmission line provided on the printed circuit board 125 and outputs a right sound driving signal supplied from the second audio amplifier 129. 2 is output to the vibrating element 330. The second sound output connector 125c is connected to the second vibrating element 330 through the second flexible circuit cable 332. Accordingly, the second vibrating element 330 is formed according to the positive right driving signal and the negative right driving signal supplied from the second sound output connector 125c through the second flexible circuit cable 332 or the positive electrode. The vibrating plate is vibrated by vibrating by an electric field formed according to the right acoustic drive signal of the castle and the negative ground signal.

In this example, the audio amplifiers 128 and 129 generating the acoustic driving signals are mounted on the printed circuit board 125 to be transferred from the main board 150 to the printed circuit board 125 of the display module 100. The loss of the acoustic driving signal may be minimized, and the distortion of the display signal may be minimized by minimizing signal interference between the acoustic driving signal generated by the user cable 190 and the display signal.

9 is a graph illustrating a comparison of sound output characteristics between a computing device of a comparative example and a computing device according to an example of the present application. In Fig. 9, the horizontal axis represents frequency and the vertical axis represents sound pressure. Here, the computing device of the comparative example is a simulation result for the notebook gram 15 of LG Electronics.

In FIG. 9, a first graph G1 represents sound output characteristics of built-in speakers mounted on left and right sides of a system body in a computing device of a comparative example, and a second graph G2 is a computing device according to an example of the present application. According to the vibration of the large-area vibrating plate according to the sound output characteristics according to the vibration of the display panel.

Like the first graph G1 and the second graph G2, it can be seen that the computing device according to the present application has a sound pressure and an extended sound range reproduction width that are 6 dB or more higher than the comparative example.

As described above, one example of the present application may output a wide range of sound through the vibration of the display panel by vibrating the display panel through the vibration of the large-area vibration plate. Since the present application uses a large-area vibration plate corresponding to the size of the display panel, it is possible to output high-quality sound with a higher sound pressure than a voice coil speaker using a small vibration plate. In particular, the present application is based on the vibration of a large-area vibrating plate made of magnesium alloy material, magnesium lithium alloy material, or aluminum alloy material having high specific rigidity and high vibration damping ability to partially or partially display a large-area display panel. By vibrating, it is possible to output sound in the low range, and the sound pressure in the mid-range (for example, 500 Hz or more) is increased, which greatly improves the sound output characteristics in the mid-to-high range, thereby providing rich sound in all ranges. You can print

In addition, the present application outputs the sound toward the viewer's ear on the display panel facing the viewer's face, so that the sound can be delivered directly to the viewer of the mid-to-high range of the high-strength of the straight line, thereby substantially close to the original sound Can be delivered to the viewer, thereby increasing the viewer's immersion.

In addition, since the present application can output sound through vibration of the display panel without the speaker built in the system main body, the built-in speaker embedded in the system main body is removed to reduce the weight of the system main body or remove the internal speaker's space. The layout space can be used to increase the size of the battery.

FIG. 10 is another cross-sectional view taken along the line I-I 'shown in FIG. 3, which is configured by changing the arrangement of the vibration module. Accordingly, in the following description, only the vibration module and related components will be described, and redundant description of the remaining components will be omitted.

10 and 3, in the computing device according to the present example, each of the first vibration element 310 and the second vibration element of the vibration module 300 may be connected to the bottom structure 911 of the system rear cover 910. It is the same as the first vibrating element shown in FIGS. 3 to 8 except that it is attached to the rear surface of the vibrating plate 200 via the element adhesive member 350 so as to face each other.

In this example, as the vibration module 300 is attached to the rear surface of the vibration plate 200, the height of the plate fixing member 250 for preventing physical contact between the vibration module 300 and the display module 100 ( Or thickness), thereby reducing the cost of the plate fixing member 250. In addition, in the present example, since only the air gap AG is formed between the display module 100 and the vibrating plate 200, the vibration of the vibrating plate 200 may be transmitted to the display module 100 without attenuation. This can be increased.

FIG. 11 is another cross-sectional view taken along the line I-I 'shown in FIG. 3, which is configured by changing the arrangement of the vibration plate. Accordingly, in the following description, only the vibrating plate, the vibrating module, and related components will be described, and redundant description of the remaining components will be omitted.

Referring to FIG. 11 and FIG. 3, in the computing device according to the present example, the vibration plate 200 is coupled to the display module 100 and attached to the rear surface of the reflective sheet 135 constituting the backlight unit 130. . The vibration plate 200 according to the present example has the same size as the light guide plate 131 of the backlight unit 130. The vibration plate 200 may be attached to the cover plate 151 of the support cover 150 via the plate fixing member 250.

In this example, each of the first vibrating element 310 and the second vibrating element of the vibration module 300 vibrates through the element adhesive member 350 so as to face the bottom structure 911 of the system back cover 910. It is the same as the first vibrating element shown in FIGS. 3 to 8 except that it is attached to the rear surface of the plate 200.

The vibration module 300 according to the present example may further include a cushion pad 370 attached to each of the first vibration element 310 and the second vibration element.

The cushion pad 370 is attached to a rear surface of each of the first vibration element 310 and the second vibration element facing the bottom structure 911 of the system rear cover 910. The cushion pad 370 according to an example may include a foam pad. The cushion pad 370 prevents physical contact between the vibration module 300 and the system rear cover 910, thereby preventing physical contact between the vibration module 300 and the system rear cover 910. Prevent damage or breakage.

The display device according to the present example may further include a sound absorbing member 500. The sound absorbing member 500 is disposed on the rear surface of the vibration plate 200 and the rear surface of the vibration module 300 attached to the vibration plate 200. That is, except that the sound absorbing member 500 is installed on the cover plate 151 of the support cover 150 overlapping the vibration plate 200 and the bottom structure 911 of the system rear cover 910. Since it is the same as above, duplicate description thereof will be omitted.

In addition, in the present example, the cover plate 151 of the support cover 150 may be formed in a flat plate shape without the opening 151a to support the sound absorbing member 500. In this case, a closed air gap AG is provided between the cover plate 151 of the support cover 150 and the vibration plate 200, so that the sound pressure generated when the vibration plate 200 is vibrated may be increased.

This example has the same effect as the computing device illustrated in FIGS. 3 to 8, but directly transmits the vibration generated from the large-area vibration plate 200 to the display module 100 to display the display panel 110. By vibrating the sound quality of the sound (SW) generated by the vibration of the display panel 110 can be further improved. In particular, the present embodiment is a low-frequency sound by vibrating the display panel according to the vibration of the vibration plate 200 made of magnesium alloy material, magnesium lithium alloy material, or aluminum alloy material having high specific rigidity and high vibration damping ability It can output, the sound pressure is increased in the mid-high range can greatly improve the sound output characteristics in the mid-high range, through which a rich sound can be output in all the high range. Here, when the vibration module 300 directly vibrates the reflective sheet 135 without using the vibration plate 200, the reflective sheet 135 has a relatively low specific rigidity compared to the vibration plate 200 according to the present application. Due to the characteristics of low vibration damping ability, the acoustic characteristics of the mid-to-high range may be degraded.

FIG. 12 is another cross-sectional view taken along the line I-I 'shown in FIG. 3, which is configured by changing the structure of the support cover shown in FIG. Accordingly, in the following description, only the support cover and its associated components will be described, and redundant description of the remaining components will be omitted.

12 and 3, the support cover 150 according to the present example includes a cover plate 151 having a flat plate shape, a cover sidewall 153 provided at an edge of the cover plate 151, and a vibration module 300. And a concave portion 155 formed concave from the overlapping cover plate 151.

The cover plate 151 is formed in a flat plate shape without an opening 151a to cover the rear surface of the vibration plate 200.

The cover sidewall 153 is provided vertically from the front edge of the cover plate 151 to surround the outer surface of the panel guide 140.

The concave portion 155 is formed concave from the cover plate 151 overlapping the vibration module 300. The concave portion 155 is formed concave from the cover plate 151 to prevent contact between the vibration module 300 and the cover plate 151 when the vibration module 300 vibrates. Accordingly, each of the first vibration element 310 and the second vibration element of the vibration module 300 may be inserted into the recess 155 during vibration.

The above-described sound absorbing member 500 is disposed on the top (or bottom) of the recess 155.

The support cover 150 may be disposed as close to the vibrating plate 200 as the depth of the recess 155 except for the recess 155 of the cover plate 151. Accordingly, the present example increases the sound pressure transmitted to the display module 100 according to the vibration of the vibration plate 200 by reducing the distance between the cover plate 151 and the vibration plate 200 except for the recess 155. You can.

Thus, this example has the same effect as the computing device shown in FIG. 11, but the sound quality of the sound SW is reduced as the distance between the cover plate 151 and the vibration plate 200 except for the recess 155 is reduced. Or the sound pressure can be further improved.

FIG. 13 is another cross-sectional view of the line I-I 'shown in FIG. 3, and FIG. 14 is a cross-sectional view for explaining the vibration element shown in FIG. 13, which is a structure and vibration of the support cover shown in FIG. The structure of the module is changed. Accordingly, in the following description, only the support cover and the vibration module and the components related thereto will be described, and redundant description of the remaining components will be omitted.

Referring to FIG. 13, the support cover 150 according to the present example includes a cover plate 151 having a flat plate shape, a cover sidewall 153 provided at an edge of the cover plate 151, and a cover overlapping the vibration module 300. And a first module insertion hole 159 and a second module insertion hole provided in the plate 151.

The cover plate 151 is formed in a flat plate shape to cover the rear surface of the vibration plate 200.

The cover sidewall 153 is provided vertically from the front edge of the cover plate 151 to surround the outer surface of the panel guide 140.

Each of the first module insertion hole 159 and the second module insertion hole is formed in a cover plate 151 overlapping the vibration module 300 to expose a portion of the vibration plate 200.

The vibration module 300 according to the present example includes a first vibration element 310 coupled to the vibration plate 200 through the first module insertion hole 159 of the support cover 150, and a second of the support cover 150. And a second vibrating element coupled to the vibrating plate 200 through the module insertion hole. Each of the first vibrating element 310 and the second vibrating element may include an actuator including a magnet member, a bobbin, and a voice coil. The actuator vibrates the vibrating plate 200 connected to the bobbin by vibrating the bobbin according to the applied magnetic field caused by the current flowing through the voice coil and the external magnetic field caused by the magnet member according to the acoustic driving signal applied based on Fleming's left hand law. .

Each of the first vibrating element 310 and the second vibrating element according to an example includes a module frame 311, a bobbin 312, a magnet member 313, a coil 314, a center pole 315, and a damper 316. ).

The module frame 311 is supported on the rear surface of the support cover 150. The module frame 311 according to an example includes a frame body 311a, an upper plate 311b, and a fixing bracket 311c.

The frame body 311a is disposed to overlap with the module insertion hole 159 provided in the support cover 150. The frame body 311a serves as a lower plate for supporting the magnet member 313. A portion of the upper side of the frame body 311a may be inserted into the module insertion hole 159.

The upper plate 311b protrudes from the front edge of the frame body 311a to have a cylindrical shape having a hollow portion. Accordingly, the lower plate 311a and the upper plate 311b may be formed of one body having a “U” shape. The lower plate 311a and the upper plate 311b are not limited to the terms, and may be expressed in other terms such as a yoke.

The fixing bracket 311c protrudes from one side and the other side of the frame body 311a parallel to each other. The fixing bracket 311c is fixed to the cover plate 151 of the support cover 150 by the module fixing member 390, whereby each of the first vibration element 310 and the second vibration element is supported by the support cover 150. ) Is fixed to the cover plate 151. Here, the module fixing member 390 may be a screw or bolt that is fastened to the cover plate 151 by passing through the fixing bracket 311c.

Optionally, the module frame 311 may be supported on the bottom structure 911 of the system back cover 910 by using a double-sided tape or the like.

The bobbin 312 vibrates the vibrating plate 200. Bobbin 312 according to an example is formed in a cylindrical shape having a hollow portion 312a is coupled to the rear surface of the vibration plate 200. The bobbin 312 may be formed of an annular (or cylindrical) structure formed of a material processed from pulp or paper, a synthetic resin such as aluminum or magnesium or an alloy thereof, a polypropylene, or a polyamide-based fiber. Can be. The bobbin 312 may vibrate, for example, vertically reciprocate by magnetic force.

The bobbin ring 317 may be coupled to the upper portion of the bobbin 312, and the bobbin ring 317 may be coupled to the rear surface of the vibrating plate 200 through a double-sided adhesive member.

The magnet member 313 is provided on the module frame 311 to be accommodated in the hollow portion 312a of the bobbin 312. The magnet member 313 may be a permanent magnet having a cylindrical shape to be inserted into the hollow portion 312a of the bobbin 312. The magnet member 313 according to an example may be implemented as a sintered magnet such as barium ferrite, and the material of the magnet member 313 may be ferric trioxide (Fe ₂ O ₃ ), barium carbonate (BaCO ₃ ), Neodymium magnets, strontium ferrite with improved magnetic components, aluminum (Al), nickel (Ni), cobalt (Co) alloy casting magnets, etc. may be used, but is not limited thereto. For example, the neodymium magnet may be neodymium-iron-boron (Nd-Fe-B).

The coil 314 is wound to surround the lower outer circumferential surface of the bobbin 312 to receive a voice current from the outside. Coil 314 is elevated with bobbin 312. Here, the coil 314 may be represented by a voice coil or the like. When a current is applied to the coil 314, the entire bobbin 312 vibrates according to Fleming's left hand law based on an applied magnetic field formed around the coil 314 and an external magnetic field formed around the magnet member 313. For example, the up and down reciprocating motion.

The center pole 315 is installed on the magnet member 313 to guide the vibration of the bobbin 312. That is, the center pawl 315 is surrounded by the bobbin 312 by being inserted into the hollow portion 312a of the bobbin 312 having a cylindrical shape. Here, the center pole 315 may be represented by a lifting guider or pole pieces.

The damper 316 may be installed between the module frame 311 and the bobbin 312. That is, the damper 316 may be installed between the frame body 311a of the module frame 311 and the upper outer peripheral surface of the bobbin 312. The damper 316 may be expressed in other terms, such as spider, suspension, or edge. The damper 316 has a corrugated structure between one end and the other end to adjust the vibration of the bobbin 312 while contracting and relaxing according to the vibration of the bobbin 312. That is, the damper 316 is connected between the bobbin 312 and the module frame 311 to limit the vibration distance of the bobbin 312 through the restoring force. For example, when the bobbin 312 vibrates over a certain distance or vibrates below a certain distance, the bobbin 312 may be returned to its original position by the restoring force of the damper 316.

Each of the first vibrating element 310 and the second vibrating element according to the present example may be represented by an internal magnetic type in which the magnet member 313 is inserted into the hollow portion 312a of the bobbin 312.

Alternatively, each of the first vibrating element 310 and the second vibrating element according to the present example may be represented by an external magnetic type (or dynamic type) in which the magnet member 313 is arranged to surround the outside of the bobbin 312. . Here, the magnetic member 313 is provided between the lower plate 311a and the upper plate 311b of each of the external magnetic type first vibrating element 310 and the second vibrating element, and the center pole 315 has a bobbin 312. Except for being provided on the lower plate 311a so as to be inserted into the hollow portion 312a of the), the same as the inner magnetic type, a description thereof will be omitted.

In this example, the computing device illustrated in FIG. 11 by vibrating the display panel 110 by directly transmitting the vibration of the vibration plate 200 according to the vibration of the vibration module 300 formed of the actuator to the display module 100. It can have the same effect as In addition, in the present example, since the vibration plate 200 coupled to the vibration module 300 made of the actuator has a heat dissipation characteristic similar to that of aluminum, it serves as a heat sink to dissipate heat generated when the actuator is operated. Accordingly, the present example can prevent a poor image quality caused by a sudden temperature difference in the local area of the display module 100 overlapping the actuator.

FIG. 15 is another cross-sectional view of the line II ′ shown in FIG. 3, which is a configuration change of the display device shown in FIG. 4. In the following description, only the changed components will be described in detail, and the remaining components will be denoted by the same reference numerals as in FIGS. 3 to 8, and redundant description thereof will be omitted or briefly described.

15 and 3 and 4, in the computing device according to the present example, the display device 30 includes a display module 100, a vibration plate 200, a vibration module 300, and a system back cover 910. , And system front cover 930.

The display module 100 is accommodated in the system rear cover 910 to display an image. The display module 100 according to an example includes a display panel 110 for displaying an image and a panel driving circuit unit for driving the display panel 110.

The display panel 110 may be a light emitting display panel. The display panel 110 according to an example includes a pixel array substrate 111 having a pixel array 112 composed of a plurality of pixels, an encapsulation layer 114 encapsulating the pixel array 112, and an encapsulation layer. Optical film 116 attached to an upper surface of 114.

Each of the plurality of pixels is provided in a pixel area provided by pixel driving lines, respectively. 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 device that emits light by a current supplied from a 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 114 protects the thin film transistor, the light emitting device, and the like from external impact, and prevents moisture from penetrating into the light emitting device.

The optical film 116 is attached to the top surface of the encapsulation layer 114 via a transparent adhesive member. The optical film 116 is a polarized light to improve the visibility and contrast ratio of the display panel 110 by changing the external light reflected by the thin film transistor and / or pixel driving lines provided on the pixel array substrate 111 to a circular polarization state It may be a film.

In addition, the display panel 110 may further include a barrier layer and a touch electrode layer interposed between the encapsulation layer 114 and the optical film 116. In addition, the display panel 110 may further include a color filter layer provided on an upper surface of the encapsulation layer 114.

Meanwhile, the encapsulation layer 114 may be replaced with an encapsulation substrate attached to the pixel array substrate 111 through a filler surrounding the pixel array 112. When the filler is formed of a transparent filler, the encapsulation substrate may be a transparent encapsulation substrate.

The panel driving circuit unit is connected to a pad unit provided in the display panel 110 to display an image corresponding to the video data supplied from the system main body 10 on each pixel. As shown in FIG. 5, the panel driving circuit unit according to an example includes a plurality of data flexible circuit films 121, a plurality of data driving integrated circuits 123, a printed circuit board 125, and a timing control circuit 127. ), And duplicate description thereof will be omitted.

The vibration plate 200 is disposed to cover the rear surface of the display module 100. That is, the edge portion of the vibrating plate 200 is coupled to the rear surface of the display panel 110 through the plate fixing member 250. As described above, the vibration plate 200 may be made of a magnesium alloy material, a magnesium lithium alloy material, or an aluminum alloy material.

The vibration module 300 is attached to the front surface of the vibration plate 200 via the device adhesive member 350, or as shown in FIG. 10, the vibration plate 200 via the device adhesive member 350. It can be attached to the back of the). The vibration module 300 includes the above-described first vibration element 310 and the second vibration element, which is the same as described above, and thus redundant description thereof will be omitted.

As described above, the shock absorbing member 600 is provided around the vibration module 300.

The system rear cover 910 accommodates the display module 100 and the vibration plate 200 coupled to the display module 100. As described above, the system rear cover 910 is provided on the bottom structure 911 covering the rear surface of the vibrating plate 200, and the edges of the bottom structure 911 and the side surfaces of the display module 100 and the vibrating plate. It may include sidewall structure 913 that covers side surfaces of 200.

On the front surface of the bottom structure 911, the sound absorbing member 500 as described above is disposed, the sound absorbing member 500 covers the rear surface of the vibration plate 200.

The system front cover 930 is disposed to cover the front edge of the display panel 110 to conceal the non-display area of the display panel 110 and the panel driving circuit unit 120.

This example may have the same effect as the computing device shown in FIGS. 3 to 8.

FIG. 16 is another cross-sectional view of the line II ′ shown in FIG. 3, which is configured by changing the arrangement of the vibration plate in the display device of FIG. 15. Accordingly, in the following description, only the arrangement structure of the vibrating plate and the components related thereto will be described in detail, and the remaining components will be denoted by the same reference numerals as in FIGS. 3 to 8, and redundant description thereof will be omitted or briefly described. Let's explain.

3, 15, and 16, in the computing device according to the present example, the vibration plate 200 is attached to the display panel 110 of the display module 100. The vibration plate 200 according to the present example has the same size as the array substrate 111 of the display panel 110. The vibration plate 200 may be attached to the bottom structure 911 of the system rear cover 910 via the plate fixing member 250. Accordingly, a closed air gap AG is provided between the bottom structure 911 of the system rear cover 910 and the vibrating plate 200 to increase the sound pressure generated when the vibrating plate 200 is vibrated.

In this example, each of the first vibrating element 310 and the second vibrating element of the vibration module 300 vibrates through the element adhesive member 350 so as to face the bottom structure 911 of the system back cover 910. It is the same as the first vibrating element shown in FIGS. 3 to 8 except that it is attached to the rear surface of the plate 200.

This example has the same effect as the computing device illustrated in FIGS. 3 to 8, but directly transmits the vibration generated from the large-area vibration plate 200 to the display module 100 to display the display panel 110. By vibrating the sound quality or sound pressure of the sound (SW) generated in accordance with the vibration of the display panel 110 can be further improved. In particular, the present embodiment is a low-frequency sound by vibrating the display panel according to the vibration of the vibration plate 200 made of magnesium alloy material, magnesium lithium alloy material, or aluminum alloy material having high specific rigidity and high vibration damping ability It can output, the sound pressure is increased in the mid-high range can greatly improve the sound output characteristics in the mid-high range, through which a rich sound can be output in all the high range. Here, when the vibration module 300 directly vibrates the display panel 110 without using the vibration plate 200, the array substrate 111 of the display panel 110 is the vibration plate 200 according to the present application. Due to its relatively low specific stiffness and low vibration damping ability, the acoustic characteristics of the mid-to-high range can be degraded.

FIG. 17 is another cross-sectional view of the line II ′ shown in FIG. 3, which is configured by replacing the display module of the display device shown in FIG. 13 with the display module shown in FIG. 16.

3, 14, and 17, in the computing device according to the present example, the display device 30 includes a display module 100, a vibration plate 200, a vibration module 300, and a system back cover 910. , And system front cover 930.

The display module 100 is accommodated in the system rear cover 910 to display an image. The display module 100 according to an example may support the vibration module 300 while supporting the display panel 110 displaying an image, a panel driving circuit unit driving the display panel 110, and the display panel 110. And a support cover 180.

The display panel 110 is a light emitting display panel, which has the same configuration as the display panel shown in FIG. 15, and thus description thereof will not be repeated.

The panel driving circuit unit is connected to a pad unit provided in the display panel 110 to display an image corresponding to the video data supplied from the system main body 10 on each pixel. As shown in FIG. 5, the panel driving circuit unit according to an example includes a plurality of data flexible circuit films 121, a plurality of data driving integrated circuits 123, a printed circuit board 125, and a timing control circuit 127. ), And duplicate description thereof will be omitted.

The vibration plate 200 is attached to the display panel 110 of the display module 100 and embedded in the display module 100. The vibration plate 200 according to the present example has the same size as the array substrate 111 of the display panel 110. The vibration plate 200 is attached to the front edge of the support cover 180 via the plate fixing member 250.

The support cover 180 is formed in a flat plate shape to cover the rear surface of the display panel 110. The support cover 180 includes a first module insertion hole 159 and a second module insertion hole provided in the cover plate 151 overlapping the vibration module 300.

Each of the first module insertion hole 159 and the second module insertion hole is formed in the support cover 180 overlapping the vibration module 300 to expose a portion of the vibration plate 200.

On the front surface of the support cover 180, the sound absorbing member 500 as described above is disposed, the sound absorbing member 500 covers the rear surface of the vibration plate 200.

The vibration module 300 includes a first vibration element 310 and a second vibration element. Each of the first vibrating element 310 and the second vibrating element according to an example includes a module frame 311, a bobbin 312, a magnet member 313, a coil 314, a center pole 315, and a damper 316. ), Which has the same configuration as that of the first vibrating element illustrated in FIG. 14, and thus, redundant description thereof will be omitted.

 The system rear cover 910 receives the vibration module 300 coupled to the display module 100 while being connected to the display module 100 in which the vibration plate 200 is embedded and the vibration plate 200. The system rear cover 910 is provided on the bottom structure 911 covering the rear surface of the display module 100 and the rear surface of the vibration module 300, and the side surfaces of the display module 100. It may include sidewall structure 913 that covers the sides of the vibrating plate 200.

The system front cover 930 is disposed to cover the front edge of the display panel 110 to conceal the non-display area of the display panel 110 and the panel driving circuit unit 120.

In this example, the computing device illustrated in FIG. 16 by vibrating the display panel 110 by directly transmitting the vibration of the vibration plate 200 according to the vibration of the vibration module 300 formed of the actuator to the display module 100. It can have the same effect as In addition, in the present example, since the vibration plate 200 coupled to the vibration module 300 has a heat dissipation characteristic similar to that of aluminum, it serves as a heat sink to dissipate heat generated when the vibration module 300 operates. Accordingly, the present example can prevent a poor image quality of the display panel 110 caused by a sudden temperature difference in the local area of the display module 100 overlapping the vibration module 300. The luminous efficiency and luminance of the 110 may be improved.

The computing device according to an example of the present application as described above outputs a sound (SW) generated by the vibration of the display panel 110 to the front of the display panel 110 rather than the rear and the bottom of the sound field to fill the entire screen In addition, due to the harmony (or matching) of the image and sound can improve the immersion of the viewer. In particular, the computing device according to an example of the present application is a wide range and high sound quality by vibrating the display panel 110 by the vibration of the large-area vibration plate 200 made of magnesium alloy material, magnesium lithium alloy material, or aluminum alloy material Sound can be output.

FIG. 18 is a diagram for describing a computing device according to another example of the present application. FIG. 19 is a plan view illustrating the display module illustrated in FIG. 18, and FIG. 20 is a cross-sectional view taken along the line III-III ′ of FIG. 19. These comprise the tweeter module in the printed circuit board of a panel drive circuit part. Accordingly, in the following description, only the tweeter module and the related components will be described, and the remaining components will be denoted by the same reference numerals, and redundant description thereof will be omitted or briefly described. A cross section of the line I-I 'shown in FIG. 18 is shown in any one of FIGS. 4, 10-13, and 15-17, and a cross section of each of the lines II-II' shown in FIG. 5 is shown.

18 to 20, the display device 30 of the computing device according to the present example includes a display module 100, a vibration plate 200, a vibration module 300, a tweeter module 700, and a system back cover ( 910, and system front cover 930.

The display module 100 includes a display panel 110, a panel driving circuit unit 120, a backlight unit 130, a panel guide 140, and a support cover 150. Except for the layout structure, the configuration is the same as that of the display apparatus illustrated in FIGS. 3 to 17, and therefore, the same reference numerals will be given to them, and redundant description thereof will be omitted.

The printed circuit board 125 of the panel driving circuit unit 120 is disposed on one side of the support cover 150 to face the system front cover 930. That is, the printed circuit board 125 is not disposed on the rear surface of the support cover 150 but is disposed in a planar state disposed on the side surface of the support cover 150. The printed circuit board 125 is supported in a planar state by a support bracket 157 bent in a double from the cover plate 151 of the support cover 150 adjacent to the system body 10.

Since each of the vibration plate 200 and the vibration module 300 is the same as the display device illustrated in FIGS. 3 to 17, the same reference numerals are given to the same, and duplicate description thereof will be omitted.

The tweeter module 700 is disposed on the printed circuit board 125 of the panel driving circuit unit 120 and outputs a high frequency sound in response to an acoustic driving signal input thereto. The tweeter module 700 according to an example includes a first tweeter 710 disposed at one edge of the printed circuit board 125, and a second tweeter 730 disposed at the other edge of the printed circuit board 125. do.

The first tweeter 710 may include a metal plate 711 disposed on one edge of the printed circuit board 125, a plate support member 712 for supporting the metal plate 711, and a front surface of the printed circuit board 125. And a piezoelectric element 713 attached to the rear surface of the metal plate 711 to face the front surface.

The metal plate 711 may be made of the above-described magnesium alloy material, magnesium lithium alloy material, or aluminum alloy material. The metal plate 711 vibrates according to the vibration of the piezoelectric element 713 to output sound of a high frequency range of 4 kHz or more. To this end, the metal plate 711 preferably has a thickness of 0.1mm ~ 0.5mm. The metal plate 711 of the magnesium alloy material, the magnesium lithium alloy material, or the aluminum alloy material is the lightest material among the metal materials of the mechanical structure, and has high specific rigidity and relatively high vibration damping ability, so it is suitable for outputting high-frequency sound. Do.

The piezoelectric element 713 is attached to the rear surface of the metal plate 711 through the adhesive 714 to be spaced apart only a predetermined distance from the front surface of the printed circuit board 125. The piezoelectric element 713 vibrates the metal plate 711 by vibrating according to an input acoustic driving signal, for example, a left acoustic driving signal. The piezoelectric element 713 according to an example may include a piezoelectric material layer having a piezoelectric effect, a first electrode disposed on the front surface of the piezoelectric material layer, and a second electrode disposed on the rear surface of the piezoelectric material layer. have. Since the piezoelectric element 713 has the same configuration as the aforementioned vibration element, a redundant description thereof will be omitted.

The plate supporting member 712 is disposed between the edge of the metal plate 711 and the front surface of the printed circuit board 125 to support the metal plate 711 to vibrate the piezoelectric element when the metal plate 711 vibrates. 713 prevents physical contact with the printed circuit board 125.

The first tweeter 710 as described above generates a high-frequency sound (HSW) through the vibration of the metal plate 711 according to the vibration of the piezoelectric element 713 according to the input sound driving signal, for example, the left sound driving signal. Output to the front cover (930).

The second tweeter 730 is disposed on the other edge of the printed circuit board 125, and like the first tweeter 710, a metal plate, a plate support member supporting the metal plate, and a front surface of the printed circuit board 125. Since it includes a piezoelectric element attached to the rear surface of the metal plate so as to face the front surface, duplicate description thereof will be omitted. The second tweeter 730 is a high-frequency sound (HSW) toward the system front cover 930 through the vibration of the metal plate according to the vibration of the piezoelectric element according to the input acoustic driving signal, for example, the right acoustic driving signal. Output

The system rear cover 910 accommodates the vibration plate 200 to which the vibration module 300 is coupled and the display module 100. The system back cover 910 according to an example includes a bottom structure 911 and a side wall structure 913, which is the same as described above, and thus, redundant description thereof will be omitted.

The system front cover 930 is disposed to cover the front edge of the display panel 110. That is, the system front cover 930 hides the non-display area of the display panel 110 and the panel driving circuit unit 120. The system front cover 930 is coupled to the sidewall structure 913 of the system rear cover 910 by a fastening member such as a hook to cover the front surface of the display module 100 except for the display area of the display panel 110. .

The system front cover 930 includes a plurality of sound emitting holes 931 overlapping the tweeter module 700 disposed on the printed circuit board 125 of the panel driving circuit unit 120.

The plurality of sound emission ports 931 are formed at regular intervals in an area overlapping each of the first and second tweeter modules 710 and 730 of the front surface of the system front cover 930. 2 Passes the high frequency sound (HSW) output from each of the tweeter modules 710 and 730.

The present example further outputs the high frequency sound (HSW) to the front of the display panel 110 through the tweeter module 700 disposed on the printed circuit board 125 of the panel driving circuit part 120 to further improve the sound quality of the high frequency band. Can be improved. In particular, in this example, the tweeter module 700 facing the viewer's face outputs the tweeter sound toward the viewer's ear, so that the sound of 2Hz or more of the high-pitched straightness can be directly transmitted to the viewer, and the vibration of the tweeter module is generated. Through the tweeter sound and the main sound according to the vibration of the display panel can be delivered to the viewer near the original sound, thereby increasing the viewer's immersion.

3 and 18 illustrate that the computing device according to the present application is a notebook computer, the computing device according to the present application has a structure in which a system body and a display device are connected by a hinge portion, such as a tablet computer or an electronic notebook. It can be applied to a portable information device having.

In addition, the computing device according to the present application outputs sound through the vibration of the display panel using the vibration plate and the vibration module, as shown in Figures 1 to 17, but is not limited to this, the tweeter module shown in Figure 18 Sound can be output using the built-in speaker installed in the system body. Furthermore, the computing device according to the present application, as shown in Figure 21, the first sound output (SW1) using the built-in speaker mounted on the system main body, the second according to the vibration of the display panel using the vibration plate and the vibration module 3D sound may be implemented through the sound output SW2 and the third sound output SW3 according to the vibration of the metal plate using the tweeter module.

In addition, in the computing device according to the present application shown in FIGS. 1 to 17, the display device 30 may be used as a display device such as the television and monitor shown in FIG. 22, a navigation device, an electronic pad, or a tablet computer. have. A cross section of the line I-I 'shown in FIG. 22 is shown in any one of FIGS. 4, 10-13, and 15-17, and a cross section of the line II-II' shown in FIG. Is shown. The display device according to the present application illustrated in FIG. 22 outputs sound to the front of the display panel 110 through vibration of the display panel 110 using the vibration plate and the vibration module.

Furthermore, in the computing device according to the present application shown in FIGS. 18 to 20, the display device 30 may be used as a display device such as a television and a monitor shown in FIG. 23, a navigation device, an electronic pad, or a tablet computer. have. A cross section of the line I-I 'shown in FIG. 23 is shown in any one of FIGS. 4, 10-13, and 15-17, and a cross section of the line III-III' shown in FIG. Is shown. The display device according to the present application illustrated in FIG. 23 uses a first sound SW1 according to vibration of a display panel using a vibration plate and a vibration module and a second sound SW2 according to vibration of a metal plate using a tweeter module. By outputting to the front of the display panel 110, it is possible to output high quality sound.

The present application described above is not limited to the above-described embodiments and the accompanying drawings, and it is common in the art that various substitutions, modifications, and changes can be made without departing from the technical matters of the present application. It will be apparent to those who have the knowledge of. Therefore, the scope of the present application is represented by the following claims, and it should be construed that all changes or modifications derived from the meaning and scope of the claims and equivalent concepts thereof are included in the scope of the present application.

10: system main body 15: main board
20: hinge portion 30: display device
100: display module 110: display panel
120: panel driving circuit portion 130: backlight unit
140: panel guide 150: support cover
200: vibration plate 250: plate fixing member
300: vibration module 310, 330: vibration element
500: sound absorption member 600: buffer member
700: tweeter module 710, 730: tweeter
711: metal plate 713: piezoelectric element
910: system back cover 930: system front cover
931: sound outlet

Claims (22)

A display module including a display panel displaying an image;
A vibration plate disposed at the rear of the display module;
A vibration module configured to vibrate the vibration plate; And
A pad disposed adjacent to the vibration module,
And the display panel vibrates according to the vibration of the vibrating plate to output sound. The method of claim 1,
And the pad is disposed on the vibration plate adjacent to the vibration module. The method of claim 1,
And the pad is disposed between the vibrating plate and the back of the display panel. The method of claim 1,
Further comprising a rear cover disposed on the rear of the vibrating plate,
And the pad is disposed between the vibrating plate and the back cover. The method of claim 1,
And the pad has a line shape or a point shape or a polygonal shape or a circle shape surrounding the vibration module. The method of claim 1,
And the vibration module is not connected to the vibration plate through the pad. The method of claim 1,
And an upper surface of the pad is positioned between an upper surface of the vibration module and a rear surface of the display module. The method of claim 1,
Further comprising an air gap between the vibrating plate and the display module,
The height of the pad is higher than the height of the vibration module. The method of claim 1,
Further comprising a rear cover disposed on the rear of the vibrating plate,
And an upper surface of the pad is positioned between the upper surface of the vibration module and the front surface of the rear cover. The method of claim 1,
A rear cover disposed at the rear of the vibration plate; And
Further comprising an air gap between the vibrating plate and the rear cover,
The height of the pad is higher than the height of the vibration module. The method of claim 1,
The pad is implemented to cover the vibration module. The method of claim 1,
A rear cover disposed at the rear of the vibration plate; And
The vibration module is attached to a rear surface of the vibration plate facing the rear cover,
And the pad is attached to an upper surface of the vibration module facing the rear cover. The method of claim 1,
Further comprising a plate fixing member between the vibrating plate and the back of the display module,
And a height of the plate fixing member is greater than a separation distance between the vibration module and a rear surface of the display module. A display module including a display panel displaying an image and a printed circuit board connected to the display panel;
A vibration plate disposed at the rear of the display module; And
A vibration module disposed on the vibration plate and connected to the printed circuit board,
And the display panel vibrates according to the vibration of the vibrating plate to output sound. The method of claim 14,
A plate fixing member between the vibrating plate and the rear surface of the display module;
An air gap between a front surface of the vibration plate and a rear surface of the display module; And
And a pad for protecting the vibration module disposed at the front or rear side of the vibration plate. The method of claim 14,
A rear cover disposed at the rear of the vibration plate; And
Further comprising an air gap between the vibrating plate and the rear cover,
And the vibration module is attached to a rear surface of the vibration plate facing the rear cover. The method of claim 16,
And a second pad attached to an upper surface of the vibration module facing the rear cover and covering the vibration module. The method according to any one of claims 14 to 17,
Further comprising a circuit cable connecting the vibration module and the printed circuit board,
The printed circuit board,
User connector;
A sound output connector connected to the circuit cable; And
And an audio amplifier connected to the user connector and connected to the sound output connector. System body;
The display device according to any one of claims 1 to 13; And
And a hinge portion between the system body and the display device. The method of claim 19,
The display module further includes a printed circuit board connected to the display panel and the vibration module,
The printed circuit board,
User connector;
A sound output connector connected to the vibration module; And
And an audio amplifier coupled to the user connector and coupled to the sound output connector. The method of claim 19,
A main board disposed in the system body; And
Further comprising a circuit cable for connecting the main board and the vibration module,
The main board comprising an audio amplifier connected to the vibration module via the circuit cable. The method of claim 19,
And a speaker mounted to the system body.

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