CN218387870U - Display device - Google Patents

Abstract

The present disclosure relates to a display device including: a display panel; the sounding substrate at least comprises a first vibrator and a second vibrator and is used for receiving the electroacoustic signal output by the audio module; an audio module configured to output an electric acoustic signal; the first vibrator and the second vibrator are respectively in communication connection with the audio module; the first oscillator will the electroacoustic signal conversion of audio module output drives display panel vibration sound production for first mechanical vibration signal, and the second oscillator drives display panel vibration sound production for the electroacoustic signal conversion of audio module output, and wherein, the amplitude of first mechanical vibration signal is greater than the amplitude of second mechanical vibration signal, improves the display device audio.

Description

Display device

Technical Field

The present disclosure relates to the field of display technologies, and in particular, to a display device.

Background

With the continuous development of electronic technology and the continuous improvement of customer demands, display devices are continuously developing towards large size, light weight and thin weight, and the display devices are lighter and thinner as a whole and also need to be internally provided with sound generating devices such as speakers. Due to the limitation of the internal space of the display equipment, the installation position space reserved for the loudspeaker is small, so that the loudspeaker installed in the display device can only meet the common playing function generally, the sound effect of more multiple channels cannot be realized, and the playing performance of the loudspeaker is poor.

In some technologies, a display device can be provided with a full-frequency vibrator behind a picture displayed on a display screen through a flat panel sound production technology, and the display screen produces sound through bending waves emitted by modal resonance under the action of the full-frequency vibrator, so that a display panel of the display device can be used for displaying and can also be used for replacing a loudspeaker to produce sound.

However, in the prior art, in the process that the full-frequency vibrator drives the display panel to vibrate and sound, high-frequency-band sound attenuation exists, and the sound production effect of the display device is reduced.

SUMMERY OF THE UTILITY MODEL

In order to solve the above technical problem or at least partially solve the above technical problem, the present disclosure provides a display device that improves a display device sound effect.

An embodiment of the present disclosure provides a display device, including:

a display panel;

the sounding substrate at least comprises a first vibrator and a second vibrator and is used for receiving the electroacoustic signal output by the audio module;

the audio module is configured to output an electroacoustic signal, and the first oscillator and the second oscillator are respectively connected with the audio module in a communication mode;

the first oscillator is to the electroacoustic signal conversion of audio frequency module output drives display panel vibration sound production, the second oscillator will the electroacoustic signal conversion of audio frequency module output drives display panel vibration sound production, wherein, the amplitude of first mechanical vibration signal is greater than the amplitude of second mechanical vibration signal.

As an optional implementation manner of the embodiment of the present disclosure, optionally, the method further includes:

the frequency dividing capacitor is configured to perform frequency dividing processing on the received electroacoustic signal output by the audio module;

and the second oscillator is in communication connection with the audio module through the frequency division capacitor.

As an optional implementation manner of the embodiment of the present disclosure, the sound substrate further includes a honeycomb panel, the honeycomb panel is located on a first side of the first oscillator and the second oscillator, and the first oscillator and the second oscillator are adhered to the honeycomb panel.

As an optional implementation manner of the embodiment of the present disclosure, the cellular board includes a first layer, a second layer, and an intermediate layer, where the first layer and the second layer are respectively attached to two sides of the intermediate layer;

the middle layer includes a plurality of honeycomb holes arranged in parallel.

As an optional implementation manner of the embodiment of the present disclosure, the honeycomb plate includes a through hole structure;

the first oscillator and the second oscillator are symmetrically arranged relative to the through hole structure.

As an optional implementation manner of the embodiment of the present disclosure, the sound substrate further includes a third vibrator;

the second oscillator and the third oscillator are symmetrically arranged relative to the first oscillator.

As an optional implementation manner of the embodiment of the present disclosure, the second vibrator includes a movable portion, a driving portion, and a vibrating portion;

the movable part is in contact with the vibrating part, and the driving part drives the movable part to vibrate so as to drive the vibrating part to vibrate.

As an optional implementation manner of the embodiment of the present disclosure, the vibration portion includes a first vibration surface, a second vibration surface, and a connection portion;

the first vibration surface is positioned on the first side of the connecting part, and the second vibration surface is positioned on the second side of the connecting part;

the orthographic projection of the second vibration surface on the display panel is positioned in the orthographic projection of the first vibration surface on the display panel.

As an optional implementation manner of the embodiment of the present disclosure, the thickness of the second vibration surface is greater than that of the first vibration surface.

As an optional implementation manner of the embodiment of the present disclosure, a distance between each of the first vibrator and the second vibrator and the frame of the cellular board is greater than or equal to 3mm, and less than or equal to 5mm.

As an optional implementation manner of the embodiment of the present disclosure, the sound substrate further includes: and the fixing structure is arranged on the second side of the sounding substrate and used for supporting and fixing the sounding substrate.

Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:

the display device that this disclosed embodiment provided, the sound production base plate includes first oscillator and second oscillator at least, first oscillator and second oscillator respectively with audio module communication connection, after audio module output electroacoustic signal, first oscillator converts the electroacoustic signal of audio module output into first mechanical vibration signal, the second oscillator receives the high frequency electroacoustic signal through frequency division electric capacity and converts high frequency electroacoustic signal into second mechanical vibration signal, the second mechanical vibration signal through the conversion of second oscillator compensaties the high frequency vibration signal of first oscillator disappearance, and then make the display device treble effect better.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the disclosure.

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1A is a schematic diagram of a display device provided by an embodiment of the present disclosure;

fig. 1B is a block diagram of a configuration of a display device according to an embodiment of the present disclosure;

fig. 2A is a schematic structural diagram of a display device in the prior art;

fig. 2B is a schematic structural diagram of a display device according to an embodiment of the present disclosure;

fig. 2C is a schematic top view of a display device according to an embodiment of the disclosure;

fig. 2D is a schematic structural diagram of another display device provided in the embodiments of the present disclosure;

fig. 2E is a schematic diagram of a display device outputting a vibration signal according to an embodiment of the disclosure;

fig. 3A is a schematic structural diagram of another display device provided in the embodiment of the present disclosure;

fig. 3B is a schematic structural diagram of heat transfer due to vibration of a vibrator in the prior art according to an embodiment of the present disclosure;

fig. 3C is a schematic structural diagram of heat transfer due to vibration of a vibrator according to an embodiment of the present disclosure;

fig. 3D to fig. 3I are schematic structural diagrams of another display device provided by the embodiment of the disclosure;

fig. 4A is a schematic perspective structure diagram of a second oscillator provided in the embodiment of the present disclosure;

fig. 4B is a schematic top view of a second oscillator according to an embodiment of the present disclosure;

fig. 4C is a schematic cross-sectional structure diagram of a second oscillator provided in the embodiment of the present disclosure;

fig. 4D is a schematic cross-sectional structure view of a second vibrator vibrating portion according to an embodiment of the present disclosure.

Detailed Description

In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.

Fig. 1A illustrates a schematic structural diagram of a display device 100, and the display device provided in this embodiment may have various implementation forms, for example, the display device may be a television, a smart television, a laser projection device, a display (monitor), an electronic whiteboard (electronic whiteboard), an electronic desktop (electronic table), and the like, which is not specifically limited in this disclosure.

Fig. 1B exemplarily shows a configuration block diagram of the display device 100 according to an exemplary embodiment. As shown in fig. 1B, the display apparatus 100 includes at least one of a tuner demodulator 110, a communicator 120, a detector 130, an external device interface 140, a controller 150, a display 160, an audio output interface 170, a memory, a power supply, and a user interface.

In some embodiments, the controller 150 includes a processor, such as a video processor, an audio processor, a graphic processor, a RAM, a ROM, a first interface to an nth interface for input/output.

The display 160 includes a display screen component for presenting a picture, and a driving component for driving image display, a component for receiving an image signal from the controller output, performing display of video content, image content, and a menu manipulation interface, and a user manipulation UI interface.

The display 160 may be a liquid crystal display, an OLED display, and a projection display, and may also be a projection device and a projection screen.

The communicator 120 is a component for communicating with an external device or a server according to various communication protocol types. For example: the communicator may include at least one of a Wifi module, a bluetooth module, a wired ethernet module, and other network communication protocol chips or near field communication protocol chips, and an infrared receiver. The display apparatus 100 may establish transmission and reception of control signals and data signals with an external control apparatus or server through the communicator 120.

The user interface can be used for receiving control signals of a control device (such as an infrared remote controller and the like).

The detector 130 is used to collect signals of the external environment or interaction with the outside. For example, the detector 130 includes a light receiver, a sensor for collecting the intensity of ambient light; alternatively, the detector 130 includes an image collector, such as a camera, which can be used to collect external environment scenes, attributes of the user, or user interaction gestures, or the detector 130 includes a sound collector, such as a microphone, which is used to receive external sounds.

The external device interface 140 may include, but is not limited to, the following: high Definition Multimedia Interface (HDMI), analog or data high definition component input interface (component), composite video input interface (CVBS), USB input interface (USB), RGB port, and the like. The interface may be a composite input/output interface formed by the plurality of interfaces.

The tuner demodulator 110 receives a broadcast television signal through a wired or wireless reception manner, and demodulates an audio and video signal, such as an EPG data signal, from a plurality of wireless or wired broadcast television signals.

In some embodiments, controller 150 and modem 110 may be located in different separate devices, i.e., modem 210 may also be located in an external device of the main device where controller 250 is located, such as an external set-top box.

The controller 150 controls the operation of the display device and responds to the user's operation through various software control programs stored in the memory. The controller 150 controls the overall operation of the display apparatus 100. For example: in response to receiving a user command for selecting a UI object to be displayed on the display 160, the controller 150 may perform an operation related to the object selected by the user command.

In some embodiments the controller comprises at least one of a Central Processing Unit (CPU), a video processor, an audio processor, a Graphics Processing Unit (GPU), a RAM Random Access Memory (RAM), a ROM (Read-Only Memory), a first to nth interface for input/output, a communication Bus (Bus), and the like.

The user may input a user command on a Graphical User Interface (GUI) displayed on the display 160, and the user input interface receives the user input command through the Graphical User Interface (GUI). Alternatively, the user may input a user command by inputting a specific sound or gesture, and the user input interface receives the user input command by recognizing the sound or gesture through the sensor.

A "user interface" is a media interface for interaction and information exchange between an application or operating system and a user that enables conversion between an internal form of information and a form acceptable to the user. A commonly used presentation form of the User Interface is a Graphical User Interface (GUI), which refers to a User Interface related to computer operations and displayed in a graphical manner. It may be an interface element such as an icon, a window, a control, etc. displayed in the display screen of the electronic device, where the control may include a visual interface element such as an icon, a button, a menu, a tab, a text box, a dialog box, a status bar, a navigation bar, a Widget, etc.

Fig. 2A is a schematic structural diagram of a display device in the prior art, and as shown in fig. 2A, in the prior art, the display device includes a display panel 10', a sound-generating substrate 20', and an audio module 30', the sound-generating substrate 20' includes a first vibrator 21', and the first vibrator 21' drives the display panel 10 'to vibrate and generate sound by using an electroacoustic signal mechanical vibration signal output by the audio module 30', so that the display panel of the display device can be used for displaying and can also replace a speaker to generate sound. However, in the prior art, in the process that the first oscillator included in the sound production substrate 20' converts the electroacoustic signal output by the audio module 30' into the mechanical vibration signal, the frequency range of the mechanical vibration signal is 0 to 20KHz, that is, the first oscillator only converts the electroacoustic signal output by the audio module 30' into the low-frequency vibration signal, the intermediate-frequency vibration signal and a part of the high-frequency vibration signal, and the high-frequency vibration signal larger than 20KHz is absent, so that the electroacoustic signal output by the audio module cannot be completely sounded through the display panel, and the sounding effect of the display device is reduced.

Fig. 2B is a schematic structural diagram of a display device provided in an embodiment of the present disclosure, and fig. 2C is a schematic structural diagram of a display device in a top view provided in an embodiment of the present disclosure, and with reference to fig. 2B and fig. 2C, the display device includes a display panel 10, a sound substrate 20, at least including a first vibrator 21 and a second vibrator 22, and configured to receive an electroacoustic signal output by an audio module 30; an audio module 30 configured to output an electric acoustic signal; the first vibrator 21 and the second vibrator 22 are respectively in communication connection with the audio module 30; the first oscillator 21 converts the electroacoustic signal output by the audio module 30 into a first mechanical vibration signal to drive the display panel 10 to vibrate and sound, and the second oscillator 22 converts the electroacoustic signal output by the audio module 30 into a second mechanical vibration signal to drive the display panel 10 to vibrate and sound, wherein the amplitude of the first mechanical vibration signal is greater than that of the second mechanical vibration signal.

In a specific embodiment, the first oscillator 21 may exemplarily be a full-frequency oscillator, the frequency range is 0 to 20KHz, that is, the first oscillator may convert an electroacoustic signal output by the audio module into a low-frequency vibration signal (0 to 0.2 KHz), an intermediate-frequency vibration signal (0.2 to 6 KHz) and a partial high-frequency vibration signal (6 KHz to 20 KHz), and the second oscillator 22 may exemplarily be a high-frequency oscillator, that is, the second oscillator may convert an electroacoustic signal output by the audio module into a high-frequency vibration signal, that is, a vibration signal greater than 6 KHz.

As shown in fig. 2B, the display device provided by the embodiment of the present disclosure includes a display panel 10, a sound-emitting substrate 20 and an audio module 30, where the sound-emitting substrate 20 at least includes a first oscillator 21 and a second oscillator 22, the first oscillator 21 and the second oscillator 22 are respectively in communication connection with the audio module 30, after the audio module 30 outputs an electroacoustic signal, the first oscillator 21 converts the electroacoustic signal output by the audio module 30 into a first mechanical vibration signal, and the second oscillator 22 converts the electroacoustic signal output by the audio module 30 into a second mechanical vibration signal, and since the amplitude of the first mechanical vibration signal converted by the first oscillator is greater than the amplitude of the second mechanical vibration signal converted by the second oscillator, according to the relationship between the amplitude and the frequency, that is, the greater the amplitude is in a unit vibration cycle, the smaller the vibration frequency is, the second oscillator can output a high-frequency vibration signal, and the second mechanical vibration signal converted by the second oscillator 22 makes up the missing high-frequency vibration signal greater than 20KHz that is absent from the first oscillator 21, thereby making up the missing vibration signal output by the first oscillator on the high-frequency vibration signal, and further making the sound effect of the display device better.

In addition, as shown in fig. 2D, when the acoustoelectric signal output by the audio module is converted into a mechanical vibration signal only by the first vibrator, the attenuation of the high-frequency signal occurs when the vibration frequency is greater than 10KHz, and the high-frequency effect of the sound can be effectively improved by the scheme of combining the first vibrator and the second vibrator.

As a specific implementation manner, as shown in fig. 2D and 2E, the display device further includes a frequency dividing capacitor 40 configured to perform frequency dividing processing on the received electric-acoustic signal output by the audio module 30; second element 22 is communicatively coupled to audio module 30 via crossover capacitor 40.

Through with second oscillator 22 through frequency dividing capacitor 40 and audio module 30 communication connection, low intermediate frequency signal that the audio module was exported is filtered through frequency dividing capacitor 40, only export high frequency signal to second oscillator 22, guarantee that the second oscillator only converts the high frequency electroacoustic signal of audio module output into second mechanical vibration signal, the realization makes up the audio signal of first oscillator output, avoid the second oscillator to convert the well low frequency electroacoustic signal of audio module output into second mechanical vibration signal and to the interference of the audio signal of first oscillator output.

The utility model provides a display device, the sound production base plate includes first oscillator and second oscillator at least, first oscillator and audio module communication connection, the second oscillator passes through frequency division electric capacity and audio module communication connection, after audio module output electroacoustic signal, electroacoustic signal conversion that first oscillator exported audio module is first mechanical vibration signal, the second oscillator receives the high frequency electroacoustic signal through frequency division electric capacity and converts high frequency electroacoustic signal into second mechanical vibration signal, second mechanical vibration signal through the second oscillator conversion remedies the big high-frequency vibration signal of first oscillator disappearance, and then make display device treble effect better.

Fig. 3A is a schematic structural diagram of another display device provided in the embodiment of the present disclosure, and as shown in fig. 3A, the sound substrate 20 further includes a honeycomb panel 23, the honeycomb panel 23 is located on a first side of the first vibrator 21 and the second vibrator 22, and the first vibrator 21 and the second vibrator 22 are pasted on the honeycomb panel 23.

Exemplarily, the honeycomb plate 23 is arranged on one side of the first vibrator 21 and the second vibrator 22 close to the display panel 10, and the first vibrator 21 and the second vibrator 22 are adhered to the honeycomb plate 23, so that on one hand, the honeycomb plate 23 can be used as a heat insulation plate to reduce heat generated by vibration of the first vibrator 21 and the second vibrator 22 from being radiated to the display panel 10, and on the other hand, in the process that the first vibrator 21 and the second vibrator 22 transmit mechanical vibration signals to the display panel through the honeycomb plate 23, the second vibrator can transmit the second mechanical vibration signals to the display panel through the honeycomb plate, so that a high-frequency signal gradually attenuated by the first vibrator is enhanced, and the sound effect of the display device is improved.

Specifically, with reference to fig. 3B, when the vibrator (including the first vibrator 21 and the second vibrator 22) directly contacts the display panel 10, at this time, heat generated by vibration of the vibrator may be diffused to the display panel 10 to raise the temperature of the display panel 10, which affects the sound production effect of the display panel 10, and reduces the service life of the display panel 10, and the heat dissipation range of the vibrator is diffused based on a spherical range, the temperature at the heated point a of the display panel 10 is the highest, and the heated point a of the display panel 10 is used as a central point to extend outwards, the temperature of the display panel 10 gradually decreases, that is, the temperatures at different positions of the display panel 10 are different, and when the temperature difference at different positions of the display panel 10 is too high, the use effect of the display panel may be seriously affected.

In the embodiment of the present disclosure, by disposing the honeycomb panel 23 between the vibrators (including the first vibrator 21 and the second vibrator 22) and the display panel 10, as shown in fig. 3C, on one hand, the honeycomb panel 23 serves as a heat insulation board to reduce the heat generated by the vibration of the vibrators to be directly transmitted to the display panel 10, and on the other hand, the honeycomb panel 23 can uniformly transmit the heat generated by the first vibrator 21 and the second vibrator 22 to the display panel 10, thereby avoiding an excessive temperature difference at different positions of the display panel 10.

With reference to fig. 3B and 3C, in fig. 3B, the contact surface between the vibrator and the display panel is smaller than the contact surface between the vibrator and the display panel through the honeycomb plate, so that the base surface between the vibrator and the display panel can be increased by arranging the honeycomb plate, and the heat generated by the vibration of the vibrator can be uniformly transmitted to the display panel.

As an alternative embodiment, as shown in fig. 3D, the honeycomb panel 23 includes a first layer 231, a second layer 232, and an intermediate layer 233, and the first layer 231 and the second layer 232 are respectively disposed on two sides of the intermediate layer 233 in an attaching manner; the middle layer 233 includes a plurality of honeycomb holes arranged in parallel.

By arranging the honeycomb panel 23 to include the first layer 231, the second layer 232 and the intermediate layer 233, the first layer 231 and the second layer 232 are heat dissipation layers, and the intermediate layer 233 is a heat insulation layer, when the first vibrator 21 and the second vibrator 22 vibrate to generate heat, firstly, the first layer 231 uniformly transfers the heat generated by the vibration of the first vibrator 21 and the second vibrator 22 to the intermediate layer 233, the intermediate layer 233 can partially block the heat generated by the vibration of the first vibrator 21 and the second vibrator 22, and the first layer 231 uniformly transfers the heat generated by the vibration of the first vibrator 21 and the second vibrator 22 to the intermediate layer 233, so that the blocking effect of the intermediate layer 233 on the heat transferred by the first layer 231 can be improved, and then the intermediate layer transfers the heat uniformly to the display panel 10 through the second layer 232, so that the heat generated by the vibration of the first vibrator 21 and the second vibrator 22 is prevented from being directly transferred to the display panel 10, and the heat transferred to the display panel 10 is reduced.

Specifically, the intermediate layer 233 is composed of a plurality of honeycomb holes, and the shape of the honeycomb holes may be regular, or irregular, such as regular hexagon, rectangle, circle, or equilateral triangle. The first and second layers 231 and 232 may be made of metal such as aluminum, iron, copper, or steel, and the intermediate layer may be made of nonmetal such as kraft paper, glass fiber, carbon fiber, plant fiber, or organic resin. The material and thickness of the middle layer 233, the size of the honeycomb holes, and the aperture ratio need to be reasonably matched with the thickness and material of the first layer 231 and the second layer 232, and on the basis of keeping the overall strength and flatness of the sounding substrate, the weight and density are preferably smaller. Preferably, the middle layer 233 is made of a plant fiber material such as a cardboard, the honeycomb holes are circular, and the first layer 231 and the second layer 232 are made of an aluminum material.

As an alternative embodiment, as shown in fig. 3E, the honeycomb panel 23 includes a through-hole structure 234, and the first vibrator 21 and the second vibrator 22 are symmetrically disposed with respect to the through-hole structure 234.

Because the sounding substrate includes the first oscillator 21 and the second oscillator 22, the amplitudes of the first oscillator 21 and the second oscillator 22 are inconsistent, when the first oscillator 21 and the second oscillator 22 of the sounding substrate vibrate simultaneously, and when the vibration forces generated by the first oscillator 21 and the second oscillator 22 are inconsistent, the honeycomb panel 23 may generate oblique vibration, and thus the first oscillator 21 or the second oscillator 22 may fall off. Specifically, when the amplitude of the first mechanical vibration signal generated by the first vibrator 21 is S1, the amplitude of the second mechanical vibration signal generated by the second vibrator 22 is S2, S1> S2, and the elastic coefficient of the honeycomb panel 23 is K, according to F = KS, that is, the vibration force generated by the first vibrator 21 is greater than the vibration force generated by the second vibrator 22, the honeycomb panel 23 may generate a phenomenon of oblique vibration. In order to avoid the problem that the first vibrator 21 or the second vibrator 22 falls off in the sound substrate, as shown in fig. 3E, the through hole structure 234 is arranged on the honeycomb panel 23, the first vibrator 21 and the second vibrator 22 are symmetrically arranged relative to the through hole structure 234, and the vibration force generated by the first vibrator 21 and the second vibrator 22 is buffered through the through hole structure 234, so that the problem that the first vibrator 21 or the second vibrator 22 falls off from the honeycomb panel 23 due to oblique vibration of the honeycomb panel 23 is avoided.

It should be noted that fig. 3E schematically illustrates a structural diagram of a via structure 234, in fig. 3E, the via structure 234 includes a plurality of holes, and two adjacent holes are spaced apart from each other, and in another possible embodiment, the via structure may also be as shown in fig. 3F, that is, two adjacent holes are disposed next to each other.

As another possible embodiment, as shown in fig. 3G, the through-hole structure 234 of the honeycomb panel 23 includes a first through-hole structure A1 and a second through-hole structure A2, that is, two rows of through-hole structures are provided on the honeycomb panel 23, and the first vibrator 21 and the second vibrator 22 are symmetrically arranged with respect to the through-hole structures.

When the through hole structure 234 of the honeycomb panel 23 only includes the first through hole structure A1, namely the honeycomb panel 23 includes one row of open pores, the vibration of the two sides of the honeycomb panel 23 is influenced by the vibration of the first vibrator 21 and the second vibrator 22, so that the stress on the two sides of the through hole structure 234 is uneven, namely, the vibration force received by the through hole structure close to one side of the first vibrator is greater than the vibration force received by the through hole structure close to one side of the second vibrator, and the holes of the through hole structure are broken off due to the long-time vibration of the sounding substrate.

And include first through-hole structure A1 and second through-hole structure A2 through setting up through-hole structure 234, set up two rows of through-hole structures in the middle of honeycomb panel 23 promptly, the vibrational force that first oscillator 21 vibration produced cushions through first through-hole structure A1, the vibrational force that second oscillator 22 produced cushions through second through-hole structure A2, avoid the oblique shake of honeycomb panel on the one hand, prevent that the oscillator that leads to shaking to one side from droing from the honeycomb panel, on the other hand, the hole that has slowed down through-hole structure 234 is at the long-time snap phenomenon that leads to because of the atress is inhomogeneous in the vibration process.

It should be noted that fig. 3G exemplarily shows that the opening included in the first via structure A1 and the opening included in the second via structure A2 are symmetrically disposed, and in other embodiments, the opening included in the first via structure A1 and the opening included in the second via structure A2 may be disposed at intervals, as shown in fig. 3H.

As another possible embodiment, as shown in fig. 3I, the sound substrate 20 further includes a third vibrator 24; the second transducer 22 and the third transducer 24 are symmetrically disposed with respect to the first transducer 21.

When the sounding substrate 20 includes the first oscillator 21 and the second oscillator 22, oblique oscillation may occur in the honeycomb panel 23, in order to avoid the problem of oblique oscillation occurring in the honeycomb panel 23, in an implementation manner of the embodiment of the present disclosure, the sounding substrate 20 includes the first oscillator 21, the second oscillator 22 and the third oscillator 24 by setting, the second oscillator 22 and the third oscillator 24 are symmetrically arranged with respect to the first oscillator 21, that is, the third oscillator 24 is symmetrically arranged on the other side of the first oscillator 21, as shown in fig. 3G, so that the oscillation forces on the two sides of the honeycomb panel 23 are consistent, the oblique oscillation phenomenon of the honeycomb panel 23 may not occur, and the problem of breaking of the honeycomb panel 23 due to long-time oscillation may also not occur.

Fig. 4A is a schematic perspective structure diagram of a second oscillator provided in an embodiment of the present disclosure, fig. 4B is a schematic top-view structure diagram of a second oscillator provided in an embodiment of the present disclosure, fig. 4C is a schematic cross-sectional structure diagram of a second oscillator provided in an embodiment of the present disclosure, and with reference to fig. 4A, fig. 4B and fig. 4C, the second oscillator 22 includes a movable portion 221, a driving portion 222 and a vibrating portion 223; the movable part is contacted with the vibrating part, and the driving part drives the movable part to vibrate so as to drive the vibrating part to vibrate.

Specifically, the drive division can be the voice coil loudspeaker voice coil, and the movable part can be magnet, and the voice coil loudspeaker voice coil attaches to the magnet periphery, and magnet and voice coil loudspeaker voice coil drive magnet vibration to drive the vibration of vibration portion, realize driving display panel vibration sound production based on mechanical vibration signal.

The material of the magnet may include a ferromagnetic material such as Neodymium magnet (NdFeB) or ferrite, and the embodiment of the present disclosure is not particularly limited thereto.

As an implementation alternative, as shown in fig. 4D, the vibration part 223 includes a first vibration surface 2231, a second vibration surface 2232, and a connection part 2233; the first vibration surface 2231 is located on a first side of the connection portion 2233, and the second vibration surface 2232 is located on a second side of the connection portion 2233; the front projection of the second vibration surface 2232 on the display panel is located within the front projection of the first vibration surface 2231 on the display panel.

As shown in fig. 4D, the first vibration surface 2231 is located on the side of the connecting portion away from the honeycomb panel, the second vibration surface 2232 is located on the side of the connecting portion close to the honeycomb panel 23, and the orthogonal projection of the second vibration surface 2232 provided with the vibrating portion on the display panel is located in the orthogonal projection of the first vibration surface 2231 on the display panel, that is, the vibration area of the first vibration surface 2231 is larger than the vibration area of the second vibration surface 2232, first, the mechanical vibration signal generated by the vibrating portion of the second oscillator is amplified by the first vibration surface 2231 and then transmitted to the second vibration surface 2232 through the connecting portion 2233, and then the mechanical vibration signal is transmitted to the honeycomb panel more intensively through the second vibration surface 2232, so that the high-frequency signal that the mechanical vibration signal is too dispersed to effectively compensate for the missing of the first oscillator is avoided.

As a specific implementation manner, the vibrating portion is a circular cone basin-shaped structure, the upper vibrating surface and the lower vibrating surface of the cone basin are connected through symmetrically designed saw-tooth fan fins, and the symmetric design can enable the mechanical vibration signal generated by the second oscillator to be uniformly transmitted to the honeycomb panel through the vibrating structure, so that the honeycomb panel is prevented from falling off due to polarization.

As an implementation option, with continued reference to fig. 4D, the thickness H1 of the first vibration face is greater than the thickness H2 of the second vibration face.

Specifically, the voice coil loudspeaker voice coil vibrates and drives the vibration of second vibration face, and the second vibration face passes through connecting portion and drives the vibration of first vibration face, forms the transmission structure, and the thickness that sets up the second vibration face is greater than the thickness of first vibration face, vibrates the vibration transmission and enables the vibration range increase of first vibration face to lead to transmitting the vibration range increase of honeycomb panel.

Optionally, the distance between the first vibrator and the second vibrator and the frame of the cellular board is greater than or equal to 3mm, and less than or equal to 5mm.

In a specific implementation mode, the design of the cellular board is influenced by the structure and cost of the display device, and the design size may be a little larger, but after the size of the cellular board is larger, the larger the part of the display device where the cellular board needs to be reserved is, and the oversized cellular board may influence the layout of other components of the display device, in addition, if the size of the reserved cellular board is larger, the heating position of the sounding substrate is smaller, which results in a higher temperature of the display panel near the first vibrator and the second vibrator, and a higher temperature of the display panel far away from the first vibrator and the second vibrator is closer, and when the first vibrator and the second vibrator transmit the mechanical vibration signal to the display panel through the cellular board to drive the display panel to vibrate and sound, the sound near the vibrator position may be larger, and the sound attenuation far away from the vibrator position is larger, which may result in a problem of unfocused sound field. Therefore, by setting the distance between the first vibrator and the second vibrator and the frame of the honeycomb panel to be larger than or equal to 3mm and smaller than or equal to 5mm, the better two vibrators are adhered, and the smaller the size is, the better the size is, and the better the size is, so that the size is fixed as a tool.

Optionally, referring to fig. 2C, the display device further includes: and a fixing structure 25 disposed at the second side of the sound substrate for supporting and fixing the sound substrate 20.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (11)

1. A display device, comprising:

a display panel;

the sounding substrate at least comprises a first vibrator and a second vibrator and is used for receiving the electroacoustic signal output by the audio module;

an audio module configured to output an electric acoustic signal;

the first oscillator and the second oscillator are respectively in communication connection with the audio module;

the first oscillator is to the electroacoustic signal conversion of audio frequency module output drives display panel vibration sound production, the second oscillator will the electroacoustic signal conversion of audio frequency module output drives display panel vibration sound production, wherein, the amplitude of first mechanical vibration signal is greater than the amplitude of second mechanical vibration signal.

2. The display device according to claim 1, further comprising:

a frequency dividing capacitor configured to perform frequency dividing processing on the received electroacoustic signal output by the audio module;

the second oscillator is in communication connection with the audio module through the frequency division capacitor.

3. The display device of claim 1, wherein the sound-emitting substrate further comprises a honeycomb panel, the honeycomb panel is located on a first side of the first vibrator and the second vibrator, and the first vibrator and the second vibrator are pasted on the honeycomb panel.

4. The display device according to claim 3, wherein the honeycomb plate comprises a first layer, a second layer and an intermediate layer, wherein the first layer and the second layer are respectively attached to two sides of the intermediate layer;

the middle layer includes a plurality of honeycomb holes arranged in parallel.

5. The display device according to claim 3, wherein the honeycomb plate comprises a through-hole structure;

the first oscillator and the second oscillator are symmetrically arranged relative to the through hole structure.

6. The display device according to claim 1, wherein the sound substrate further includes a third vibrator;

the second oscillator and the third oscillator are symmetrically arranged relative to the first oscillator.

7. The display device according to claim 3, wherein the second vibrator includes a movable portion, a driving portion, and a vibrating portion;

the movable part is in contact with the vibrating part, and the driving part drives the movable part to vibrate so as to drive the vibrating part to vibrate.

8. The display device according to claim 7, wherein the vibration portion includes a first vibration face, a second vibration face, and a connection portion;

the first vibration surface is positioned on the first side of the connecting part, and the second vibration surface is positioned on the second side of the connecting part;

the orthographic projection of the second vibration surface on the display panel is positioned in the orthographic projection of the first vibration surface on the display panel.

9. The display device according to claim 8, wherein a thickness of the second vibration face is larger than a thickness of the first vibration face.

10. The display device according to claim 3, wherein the distance between the first vibrator and the second vibrator and the honeycomb panel frame is greater than or equal to 3mm and less than or equal to 5mm.

11. The display device according to claim 1, wherein the sound substrate further comprises: and the fixing structure is arranged on the second side of the sounding substrate and used for supporting and fixing the sounding substrate.

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