Sounding device

Abstract

The utility model provides a sounding device, and belongs to the field of display screen modules. The technical problem to be solved is to provide a sounding device which greatly enriches the auditory experience of a user and ensures the light transmission and ink color consistency of a display panel at the same time. According to the technical scheme adopted for solving the technical problem, the display module comprises a display module body, the display module body comprises a PCB, the PCB comprises a picture display layer, a coil circuit layer and an IC driving layer, the coil circuit layer is located between the picture display layer and the IC driving layer, a plurality of planar coils are arranged on the coil circuit layer, and the planar coils are electrically connected to a power source after being connected in series. A plurality of light-emitting chips are arranged on the picture display layer, a film material is attached to the light-emitting chips, the film material comprises a first thin film and a first adhesive film, an iron boride nanoparticle layer is laminated between the first thin film and the first adhesive film, the first adhesive film is attached to the light-emitting chips, the first thin film is a PET film, and the first adhesive film is an EVA adhesive film; the utility model is applied to the display screen module.

Description

Technical Field

[0001] The utility model provides a sound-generating device, belonging to the technical field of display screen modules. Background Art

[0002] Existing electronic products usually have one or more speaker holes on their frames or display panels to output audio signals. With the development of display technology, people are paying more attention to the visible area of ​​the display panel, the integrity of the display image, and the immersive experience of the user.

[0003] The prior art (CN 212278449 U) proposes a panel sound device, in which the first film sound component and the second film sound component have different frequency characteristics, so that the first film sound component and the second film sound component can respectively emit sound frequencies of different frequency ranges, thereby increasing the sound range of the panel sound device output and improving the output sound quality. However, its structure is complex and the auditory experience is poor. Utility Model Content

[0004] In order to solve the technical problem of poor sound quality output by existing sound-generating devices, the utility model proposes a sound-generating device, the purpose of which is to greatly enrich the user's auditory experience by improving the hardware structure and / or circuit structure of the display module while ensuring the light transmittance and ink color consistency of the display panel.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a sound-generating device, comprising a display module, wherein the display module comprises a PCB board, wherein the PCB board comprises a picture display layer, a coil circuit layer and an IC driving layer, wherein the coil circuit layer is located between the picture display layer and the IC driving layer;

[0006] A plurality of planar coils are arranged on the coil circuit layer;

[0007] The plurality of planar coils are connected in series and electrically connected to a power source;

[0008] A plurality of light-emitting chips are arranged on the picture display layer, and a film material is attached to the light-emitting chips;

[0009] The film material includes a first thin film and a first adhesive film, a layer of iron boride nanoparticles is pressed between the first thin film and the first adhesive film, and the first adhesive film is attached to the light-emitting chip.

[0010] Furthermore, the iron boride nanoparticle layer, the first film and the first adhesive film are of the same shape and size.

[0011] Furthermore, the planar coil is a spiral circuit.

[0012] Furthermore, the iron boride nanoparticle layer is covered with iron boride powder nanoparticles, and the particle size of the iron boride powder nanoparticles is 45-55 nm.

[0013] Furthermore, the density of the iron boride powder nanoparticles distributed in the iron boride nanoparticle layer is 2.06-3.06 g / cm3.

[0014] Furthermore, the first film is a PET film.

[0015] Furthermore, the first adhesive film is an EVA adhesive film.

[0016] Furthermore, the material of the planar coil is copper wire.

[0017] Furthermore, the plurality of planar coils are arranged in an array.

[0018] Furthermore, the outer contour of the planar coil is a concentric polygon.

[0019] The beneficial effects of the present invention compared with the prior art are as follows:

[0020] 1. The membrane material of the utility model has excellent magnetic properties. When the magnetic field generated by the planar coil changes, the membrane material can quickly vibrate and respond to sound, with high sensitivity and fast response speed;

[0021] 2. The utility model controls the magnitude and direction of the current in the planar coil to affect the change of the magnetic field, thereby adjusting the vibration frequency and amplitude of the membrane material, achieving precise adjustment and control of the sound, and meeting the needs of different environments. Compared with the traditional sound-generating device, the sound-generating device of the utility model does not emit sound from a speaker at a fixed position, but evenly emits sound from the entire display module, making the sound more natural and giving people an immersive feeling, greatly enriching the user's auditory experience, and providing users with a more comfortable and personalized audio experience;

[0022] 3. The film material of the utility model has good light transmittance, which can ensure the light transmittance and ink color consistency of the display panel;

[0023] 4. The film material of the utility model has excellent mechanical properties and can improve the thermal conductivity of the display module;

[0024] 5. The sound-generating device of the utility model reduces the setting of the speaker port, simplifies the structure of the display screen, and improves the aesthetics of the all-in-one machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The utility model is further described below in conjunction with the accompanying drawings:

[0026] Figure 1 It is a structural schematic diagram of the membrane material of the utility model;

[0027] Figure 2 It is the coil circuit layer of the utility model;

[0028] Figure 3 for Figure 2 A magnified schematic diagram of part A;

[0029] In the figure: 1 is a first film, 2 is a first adhesive film, 3 is a layer of iron boride nanoparticles, 4 is a planar coil, and 5 is a light-emitting chip. DETAILED DESCRIPTION

[0030] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directional words are not used to limit the present invention.

[0031] like Figures 1 to 3 As shown, the utility model provides a sound-generating device, including a COB display module, the COB display module includes a PCB board, the COB display module mainly relies on directly mounting a light-emitting chip on the PCB board to realize the display function, the PCB board includes a screen display layer, a coil circuit layer and an IC driving layer, the coil circuit layer is located between the screen display layer and the IC driving layer, the coil circuit layer includes a plurality of planar coils 4 arranged in an array, the plurality of planar coils 4 are electrically connected to a driving power supply after being connected in series by wires, a magnetic field is generated by applying current to the planar coil 4, and the magnitude and direction of the magnetic field are changed by controlling the magnitude and direction of the current in the planar coil 4. In this embodiment, the planar coil 4 is a spiral circuit, and its outer contour can be a circular, elliptical or polygonal shape. The outer contour of the planar spiral coil is preferably a concentric polygon, and the planar coil 4 in this embodiment is a spiral concentric circle. In this embodiment, the planar coil 4 uses copper wire, and the material of the planar coil 4 can also be other metals or metal alloys, as long as the current can generate a magnetic field. The plurality of planar coils 4 of the utility model cover the entire PCB board, so that the magnetic field generated by them can evenly adjust the vibration frequency and amplitude of the film material.

[0032] A plurality of light-emitting chips 5 are packaged on the screen display layer of the PCB board, and a film material is attached to the upper surface of the light-emitting chip 5, and the film material covers all the light-emitting chips 5 on the PCB board. The film material includes a first film 1 and a first adhesive film 2, and an iron boride nanoparticle layer 3 is pressed between the first film 1 and the first adhesive film 2. The iron boride nanoparticle layer 3, the first film 1 and the first adhesive film 2 have the same shape and size. The first adhesive film 2 is attached to the light-emitting chip 5. In this embodiment, the first film 1 is a PET film, and the first adhesive film 2 is an EVA film.

[0033] The iron boride nanoparticle layer 3 is covered with iron boride powder nanoparticles, and the iron boride powder nanoparticles have good light transmittance, that is, the iron boride nanoparticle layer 3 has good light transmittance. The thickness of the iron boride nanoparticle layer 3, the size of the iron boride powder nanoparticles, and the density of the iron boride powder nanoparticles can be set accordingly according to the user's requirements for light transmittance. In this embodiment, the particle size of the iron boride powder nanoparticles is 45-55 nm, and the density of the iron boride powder nanoparticles distributed in the iron boride nanoparticle layer (3) is 2.06-3.06 g / cm3.

[0034] The utility model can ensure the light transmittance and ink color consistency of the film material by laminating the iron boride nanoparticle layer 3 between the PET film and the EVA film, and at the same time can ensure the appearance characteristics of the COB display module. The film material structure of the utility model can not only enhance the mechanical strength of the protective film on the light-emitting chip 5, but also improve the heat dissipation performance of the display module.

[0035] The film material of the utility model is pressed with a boronized iron nanoparticle layer 3, and boronized iron has excellent magnetic properties. The utility model controls the magnitude and direction of the current in the planar coil 4 to change the magnetic field generated by it, thereby adjusting the vibration frequency and amplitude of the boronized iron nanoparticle layer 3, and transmitting it to the surface of the film material to make the film material vibrate, thereby achieving sound regulation and control. Since the sound-generating device of the utility model is not emitted from a speaker at a fixed position, but is emitted evenly from the entire display module, the sound is more natural, giving people an immersive feeling, greatly enriching the user's auditory experience, and providing users with a more comfortable and personalized audio experience.

[0036] Regarding the specific structure of the utility model, it should be explained that the connection relationship between the various component modules adopted in the utility model is definite and feasible. Except for special instructions in the embodiments, the specific connection relationship can bring corresponding technical effects and solve the technical problems raised by the utility model without relying on the execution of corresponding software programs. The components, modules, models of specific components and the connection methods between each other appearing in the utility model, as well as the conventional use methods and expected technical effects brought about by the above-mentioned technical features, except for specific instructions, all belong to the disclosed contents in patents, journal articles, technical manuals, technical dictionaries, and textbooks that can be obtained by technical personnel in this field before the application date, or belong to the existing technologies such as conventional technologies and common knowledge in this field, and there is no need to elaborate, so that the technical solution provided in this case is clear, complete and feasible, and the corresponding physical products can be reproduced or obtained according to the technical means.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A device capable of producing sound, comprising a display module, characterized in that: The display module includes a PCB board, the PCB board includes a picture display layer, a coil circuit layer and an IC driving layer, and the coil circuit layer is located between the picture display layer and the IC driving layer; A plurality of planar coils (4) are arranged on the coil circuit layer, and the plurality of planar coils (4) are connected in series and electrically connected to a power supply; A plurality of light-emitting chips (5) are arranged on the picture display layer, and a film material is attached to the light-emitting chips (5); The film material comprises a first film (1) and a first adhesive film (2), an iron boride nanoparticle layer (3) is pressed between the first film (1) and the first adhesive film (2), and the first adhesive film (2) is attached to the light-emitting chip (5).

2. A sound-generating device according to claim 1, characterized in that: The iron boride nanoparticle layer (3), the first film (1) and the first adhesive film (2) are of the same shape and size.

3. A sound-generating device according to claim 1, characterized in that: The planar coil (4) is a spiral circuit.

4. A sound-generating device according to claim 1, characterized in that: The iron boride nanoparticle layer (3) is covered with iron boride powder nanoparticles, and the particle size of the iron boride powder nanoparticles is 45-55 nm.

5. A sound-generating device according to claim 4, characterized in that: The density of the iron boride powder nanoparticles distributed in the iron boride nanoparticle layer (3) is 2.06-3.06 g / cm3.

6. A sound-generating device according to claim 1, characterized in that: The first film (1) is a PET film.

7. A sound-generating device according to claim 1, characterized in that: The first adhesive film (2) is an EVA adhesive film.

8. A sound-generating device according to claim 1, characterized in that: The material of the planar coil (4) is copper wire.

9. A sound-generating device according to claim 1, characterized in that: The plurality of planar coils (4) are arranged in an array.

10. The sound-generating device according to claim 1, characterized in that: The outer contour of the planar coil (4) is a concentric polygon.

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