Display devices and electronic devices

Abstract

This disclosure provides an electronic device, relating to the field of electronic product technology. The electronic device includes: a display module, a frame, a back cover, a sound-emitting device, and a decorative cover. The display module, frame, and back cover are stacked, with the display module connected to the back cover via the frame. The sound-emitting device is mounted on the frame. The display module has a first sound outlet, and a first sound guiding channel is formed between the display module and the frame, through which the sound-emitting device communicates with the first sound outlet. A second sound guiding channel is formed between the back cover and the frame, through which the sound-emitting device communicates with a second sound outlet. The decorative cover is connected to the frame and is located between the sound-emitting device and the display module. The decorative cover faces the first sound outlet to reduce the sound output area of ​​the first sound outlet. When the sound-emitting device emits sound waves, a first sound wave signal emitted from the first sound outlet and a second sound wave signal emitted from the second sound outlet form an acoustic dipole.

Description

Technical Field

[0001] This disclosure relates to the field of electronic product technology, specifically to an electronic device. Background Technology

[0002] In scenarios where users make handheld calls using electronic devices, the earpiece is positioned close to the top of the device, and the ear and face cannot completely seal it. Therefore, during a call, the sound output from the earpiece will leak due to reflection and diffraction from the body. It is evident that existing electronic devices are prone to sound leakage during calls. Summary of the Invention

[0003] This disclosure provides an electronic device that can prevent sound leakage from electronic devices.

[0004] In a first aspect, embodiments of this disclosure provide an electronic device, including: a display module, a frame, a back cover, a sound-emitting device, and a decorative cover, wherein the display module, the frame, and the back cover are stacked, and the display module is connected to the back cover through the frame, and the sound-emitting device is mounted on the frame;

[0005] The display module has a first sound outlet, and a first sound guide channel is formed between the display module and the frame. The sound-emitting device is connected to the first sound outlet through the first sound guide channel.

[0006] A second sound channel is formed between the back cover and the frame. The sound-emitting device is connected to the second sound outlet through the second sound channel. The second sound outlet is opened in the frame, or the second sound outlet is opened in the back cover.

[0007] The decorative cover is connected to the frame and is located between the sound-emitting device and the display module. The decorative cover is opposite to the first sound outlet to reduce the sound outlet area of ​​the first sound outlet.

[0008] When the sound-emitting device emits sound waves, the first sound wave signal emitted from the first sound outlet and the second sound wave signal emitted from the second sound outlet form an acoustic dipole.

[0009] In this embodiment, by opening a first sound outlet in the display module of the electronic device and a second sound outlet in the back cover, and when the sound-emitting device emits sound waves, the first sound wave signal emitted from the first sound outlet and the second sound wave signal emitted from the second sound outlet form an acoustic dipole. Thus, the first and second sound wave signals can cancel each other out in the far field, thereby preventing sound leakage from the electronic device. Furthermore, by positioning the decorative cover opposite the first sound outlet, the sound emission area of ​​the first sound outlet is reduced. Because the sound emission area of ​​the first sound outlet is reduced, the energy level of the energy center of the sound wave emitted from the first sound outlet of the electronic device can be effectively reduced, thereby facilitating the balance of the energy levels of the sound waves emitted from the first and second sound outlets, and further improving the effect of the formed acoustic dipole. Attached Figure Description

[0010] Figure 1 This is one of the schematic diagrams of the internal structure of the electronic device provided in the embodiments of this disclosure;

[0011] Figure 2 This is a second schematic diagram of the internal structure of the electronic device provided in the embodiments of this disclosure;

[0012] Figure 3 This is the third schematic diagram of the internal structure of the electronic device provided in the embodiments of this disclosure;

[0013] Figure 4 This is the fourth schematic diagram of the internal structure of the electronic device provided in the embodiments of this disclosure;

[0014] Figure 5 This is the fifth schematic diagram of the internal structure of the electronic device provided in the embodiments of this disclosure;

[0015] Figure 6 This is one of the structural schematic diagrams of the electronic device provided in the embodiments of this disclosure;

[0016] Figure 7 This is a second schematic diagram of the structure of the electronic device provided in the embodiments of this disclosure;

[0017] Figure 8 This is a schematic diagram of a user making a call using a handheld electronic device in an embodiment of this disclosure. Detailed Implementation

[0018] The technical solutions of the embodiments of this disclosure will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure are within the scope of protection of this disclosure.

[0019] The terms "first," "second," etc., used in this disclosure and in the claims are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this disclosure can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0020] Please see Figures 1 to 7 An electronic device provided in this embodiment includes: a display module 101, a frame 102, a back cover 103, a sound-emitting device 104, and a decorative cover 111. The display module 101, the frame 102, and the back cover 103 are stacked, and the display module 101 is connected to the back cover 103 through the frame 102. The sound-emitting device 104 is mounted on the frame 102.

[0021] The display module 101 has a first sound outlet 105, and a first sound guide channel 106 is formed between the display module 101 and the frame 102. The sound-emitting device 104 is connected to the first sound outlet 105 through the first sound guide channel 106.

[0022] A second sound channel 108 is formed between the back cover 103 and the frame 102, and the sound-emitting device 104 is connected to the second sound outlet 107 through the second sound channel 108.

[0023] The decorative cover 111 is connected to the frame 102, and the decorative cover 111 is located between the sound-emitting device 104 and the display module 101. The decorative cover 111 is opposite to the first sound outlet 105 to reduce the sound outlet area of ​​the first sound outlet 105. The second sound outlet 107 is opened in the frame 102, or the second sound outlet 107 is opened in the back cover 103.

[0024] When the sound-emitting device 104 emits sound waves, the first sound wave signal emitted from the first sound outlet 105 and the second sound wave signal emitted from the second sound outlet 107 form an acoustic dipole.

[0025] In this embodiment of the present disclosure, since the first sound outlet 105 is located at the front end of the electronic device, the first sound outlet 105 forms the sound outlet of the sound-emitting device 104. Specifically, the first sound outlet 105 is a sound outlet slit formed between the display module 101 and the frame 102, or the first sound outlet 105 is a sound outlet hole opened in the display module 101.

[0026] The aforementioned second sound outlet 107 can be an opening of various shapes formed in the frame 102 or back cover 103, such as a sound outlet hole or a sound outlet slit. The following explanation uses the example of the second sound outlet 107 being an opening formed in the back cover 103 to further illustrate the structure of the electronic device provided in this embodiment. Furthermore, the aforementioned first sound guiding channel 106 and second sound guiding channel 108 can be sound guiding channels formed by gaps between various components inside the electronic device. For example, please refer to... Figure 2 In one embodiment of this disclosure, the first sound guiding channel 106 is formed by the gaps between components such as the first sealing member 114, the third dustproof mesh 112, the decorative cover 111, the frame 102, and the screen assembly. Please refer to [link to relevant documentation]. Figure 4 The second sound channel 108 is formed by the gaps between the second sealing element 115, the fourth dustproof net 116, the motherboard bracket 118 for supporting the motherboard 113, the sealing steel plate 117, the back cover 103 and the decorative element 119.

[0027] The aforementioned sound-generating device 104 can be a common acoustic device in electronic devices. It is understood that the first sound-guiding channel 106 can form the front cavity of the sound-generating device 104, meaning the diaphragm of the sound-generating device 104 faces the first sound-guiding channel 106. Correspondingly, the second sound-guiding channel 108 can form the rear cavity of the sound-generating device 104. When the acoustic device is in operation, the sound waves emitted by the sound-generating device 104 can propagate to the first sound-guiding channel 106 and the second sound-guiding channel 108, respectively, and propagate outside the electronic device through the first sound outlet 105 and the second sound outlet 107, respectively.

[0028] Specifically, since the first sound outlet 105 and the second sound outlet 107 are located at the front and rear ends of the electronic device, respectively, the first sound outlet 105 and the second sound outlet 107 can respectively form two different sound sources on the electronic device. Please refer to [link / reference]. Figure 8 In a scenario where a user is making a call using a handheld electronic device, since the first sound outlet 105 is typically positioned against the user's ear, part of the first sound wave signal transmitted from the first sound outlet 105 enters the ear, while the other part is reflected by the body and propagates towards the back of the electronic device. Figure 5In the direction indicated by the arrow, the leakage portion of the first acoustic signal can be out of phase with the second acoustic signal emitted from the second sound outlet 107, causing the leakage portion of the first acoustic signal and the second acoustic signal to form an acoustic dipole. This allows the leakage portion of the first acoustic signal to cancel out the second acoustic signal, thereby preventing sound leakage during user calls. Furthermore, compared to only having the first sound outlet 105, this embodiment of the disclosure simultaneously has both the first sound outlet 105 and the second sound outlet 107, thus forming two sound sources on the surface of the electronic device. Therefore, the sound heard by the user is clearer, achieving a near-field acoustic signal enhancement effect.

[0029] Specifically, since the first sound outlet 105 at the front of the electronic device is a feature of conventional designs, its opening area is often quite ample, and the corresponding size of the front sound guide channel is also often ideal. However, the second sound outlet 107 at the rear is not a conventional opening and often needs to be relatively concealed or small enough. Furthermore, the specific opening location is also restricted to avoid affecting the overall appearance of the device. Therefore, the rear opening is often smaller and farther from the sound-emitting device 104. Consequently, the ventilation of the first sound guide channel 106 is higher than that of the second sound guide channel 108. This results in the energy of the sound wave energy center emitted from the first sound outlet 105 being greater than the energy of the opposite-phase sound wave emitted from the second sound outlet 107, limiting the effectiveness of preventing sound leakage.

[0030] Based on this, please see Figure 2 and Figure 5 In this embodiment of the present disclosure, the decorative cover 111 is positioned opposite the first sound outlet 105 to reduce the sound output area of ​​the first sound outlet 105. Because the sound output area of ​​the first sound outlet 105 is reduced, the energy level of the sound wave emitted from the first sound outlet 105 of the electronic device can be effectively reduced. This helps to balance the energy levels of the sound waves emitted from the first sound outlet 105 and the second sound outlet 107, thereby improving the sound leakage prevention effect.

[0031] In this embodiment, by opening a first sound outlet 105 in the display module 101 of the electronic device and a second sound outlet 107 in the back cover 103, and when the sound-emitting device 104 emits sound waves, the first sound wave signal emitted from the first sound outlet 105 and the second sound wave signal emitted from the second sound outlet 107 form an acoustic dipole. In this way, the first sound wave signal and the second sound wave signal can cancel each other in the far field, thereby preventing the electronic device from having a sound leakage problem.

[0032] Optionally, the first sound outlet 105 includes a strip-shaped slit, the strip-shaped slit including a first segment and a second segment, the distance between the first segment and the second sound outlet 107 being greater than the distance between the second segment and the second sound outlet 107;

[0033] The decorative cover 111 is opposite to the first segment to cover the first segment of the strip seam.

[0034] Since the decorative cover 111 covers the first segment of the strip-shaped seam, and the first segment of the strip-shaped seam is an opening on the surface of the electronic device, in order to avoid the decorative cover 111 affecting the aesthetics of the electronic device, the decorative cover 111 can be made of transparent material, and the decorative cover 111 can be pasted on the inside of the strip-shaped seam.

[0035] Specifically, the closer the distance between the first sound outlet 105 and the second sound outlet 107, the closer the energy centers of the sound wave signals emitted by them are, thus resulting in a better acoustic dipole effect. Based on this, in this embodiment, by blocking the first segment of the strip slit, the sound wave signal in the first sound guiding channel 106 is guided to the second segment for emission. In this way, the energy center of the sound wave signal in the first sound guiding channel 106 will shift towards the second segment, thereby reducing the distance between the energy centers of the first and second sound wave signals, which is more conducive to the formation of an acoustic dipole.

[0036] Optionally, the first segment is disposed opposite to the sound-generating device 104, and the second segment is offset from the position of the sound-generating device 104.

[0037] The distance between the first segment and the sound-generating device 104 is less than the distance between the second segment and the sound-generating device 104.

[0038] Please see Figure 5 In this embodiment of the disclosure, the first acoustic signal needs to travel along... Figure 5 The sound wave propagates in the direction indicated by the middle arrow. That is, when the first sound wave signal propagates to the first segment of the strip slit, it cannot propagate outward. It needs to bypass the first segment to propagate to the outside through the opening of the second segment. This helps to extend the length of the first sound guide channel 106, thereby further reducing the energy of the first sound wave signal emitted from the first sound outlet 105, so as to further balance the energy of the sound waves emitted from the first sound outlet 105 and the second sound outlet 107, thereby improving the sound leakage prevention effect.

[0039] Optionally, the second sound outlet 107 includes a first sub-sound outlet 1072 and a second sub-sound outlet 1071, wherein the first sub-sound outlet 1072 and the second sub-sound outlet 1071 are respectively connected to different positions of the second sound guide channel 108.

[0040] As can be seen from the above embodiments, due to the structural limitations of the electronic device, the energy of the sound wave energy center emitted by the first sound outlet 105 is greater than the energy of the anti-phase sound wave emitted by the second sound outlet 107, thus limiting the sound leakage prevention effect. Based on this, in this embodiment of the present disclosure, by forming two sub-sound outlets on the back of the electronic device, the sound wave energy emitted by the back sound outlet is enhanced, thereby improving the sound leakage prevention effect of the electronic device.

[0041] Please see Figure 4 Along the extension direction of the second sound channel 108, the first sub-sound outlet 1072 is located between the second sub-sound outlet 1071 and the sound-generating device 104.

[0042] Specifically, by altering the internal structure of the second sound guide channel 108, or by adding devices with different acoustic impedances to the first sub-sound outlet 1072 and the second sub-sound outlet 1071, the first sub-sound outlet 1072 and the second sub-sound outlet 1071 can respectively propagate second sound wave signals of different frequency bands when the sound-generating device 104 is in operation. In this way, the second sound wave signals of different frequency bands propagated through the first sub-sound outlet 1072 and the second sub-sound outlet 1071 can respectively form acoustic dipoles with the first sound wave signals of different frequency bands, thereby preventing sound leakage at different frequency bands.

[0043] Please see Figure 4 In one embodiment of this disclosure, the first sub-sound outlet 1072 is disposed opposite to the sound-emitting device 104, and the second sub-sound outlet 1071 is connected to the end of the second sound guide channel 108 away from the sound-emitting device 104. The second sub-sound outlet 1071 may be formed at the connection between the frame 102 and the decorative piece 119 of the camera 220.

[0044] Specifically, a first dustproof mesh 109 can be provided inside the first sub-sound outlet 1072, and a second dustproof mesh 110 can be provided inside the second sub-sound outlet 1071. This helps to improve the overall waterproof and dustproof performance of the electronic device.

[0045] Optionally, the acoustic impedance of the first dustproof net 109 is greater than that of the second dustproof net 110.

[0046] In this embodiment, since the acoustic impedance of the first dustproof net 109 is greater than that of the second dustproof net 110, the second sound wave signal within the second sound guiding channel 108 can be guided to be emitted from the second sub-sound outlet 1071, making the second sub-sound outlet 1071 the main sound outlet and the first sub-sound outlet 1072 the auxiliary sound outlet. Furthermore, because the acoustic impedances of the first dustproof net 109 and the second dustproof net 110 are different, the frequency bands of the sound wave signals emitted from the first sub-sound outlet 1072 and the second sub-sound outlet 1071 are different, which can essentially achieve coverage of the narrowband voice band, i.e., simultaneously achieving leakage prevention for low-frequency and mid-to-high-frequency voice. Specifically, the electronic device provided in this embodiment can prevent sound leakage across the entire frequency band from 100Hz to 3kHz. The sound wave propagated from the main sound outlet can form an acoustic dipole with the sound wave in the mid-frequency band of 1kHz-3kHz to prevent sound leakage in the mid-frequency band of 1kHz-3kHz. The auxiliary sound outlet can form an acoustic dipole with the sound wave in the low-frequency band below 1.5kHz to prevent sound leakage in the low-frequency band below 1.5kHz.

[0047] Optionally, the second sound guide channel 108 is a strip channel, and the first end of the second sound guide channel 108 is connected to the sound generating device 104, the second end of the second sound guide channel 108 is closed, and the second sound outlet 107 is located in the middle of the second sound guide channel 108.

[0048] As can be seen from the above embodiments, due to the structural limitations of the electronic device, the energy of the sound wave energy center emitted from the first sound outlet 105 is greater than the energy of the anti-phase sound wave emitted from the second sound outlet 107, thus limiting the sound leakage prevention effect. Based on this, please refer to... Figure 7 In one embodiment of this disclosure, the second sound outlet 107 is located in the middle of the second sound guiding channel 108. Thus, the second sound outlet 107 can divide the second sound guiding channel 108 into a first sub-channel 1081 and a second sub-channel 1082. The second sound wave signal transmitted from the sound generating device 104 into the second sound guiding channel 108 can be propagated to the outside through the second sound outlet 107, and can also continue to propagate into the first sub-channel 1081. In this way, the sound wave signal in the first sub-channel 1081 can resonate with the sound wave signal in the first sub-channel 1081 after being reflected by the second end of the second sound guiding channel 108, thereby enhancing the second sound wave signal, specifically enhancing the sound quality and sound capacity of the second sound wave signal.

[0049] In this embodiment, by opening the second sound outlet 107 in the middle of the second sound guide channel 108, it is beneficial to enhance the signal strength of the sound wave signal emitted from the second sound outlet 107, thereby helping to balance the energy of the sound waves emitted from the first sound outlet 105 and the second sound outlet 107, and thus improving the sound leakage prevention effect.

[0050] Optionally, the orthographic projection of the sound-generating device 104 in the display module 101 is offset from the position of the first sound outlet 105.

[0051] In this embodiment, by making the orthographic projection of the sound-emitting device 104 in the display module 101 offset from the position of the first sound outlet 105, it is beneficial to extend the length of the first sound guide channel 106, so as to further balance the energy of the sound waves emitted by the first sound outlet 105 and the second sound outlet 107, thereby improving the sound leakage prevention effect.

[0052] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this disclosure is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0053] The embodiments of this disclosure have been described above with reference to the accompanying drawings. However, this disclosure is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this disclosure without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this disclosure.

Claims

1. An electronic device, characterized in that, include: The display module, frame, back cover, sound-emitting device, and decorative cover are stacked together, and the display module is connected to the back cover through the frame. The sound-emitting device is mounted on the frame. The display module has a first sound outlet, and a first sound guide channel is formed between the display module and the frame. The sound-emitting device is connected to the first sound outlet through the first sound guide channel. A second sound channel is formed between the back cover and the frame. The sound-emitting device is connected to the second sound outlet through the second sound channel. The second sound outlet is opened in the frame, or the second sound outlet is opened in the back cover. The decorative cover is connected to the frame and is located between the sound-emitting device and the display module. The decorative cover is opposite to the first sound outlet to reduce the sound outlet area of ​​the first sound outlet. Wherein, when the sound-emitting device emits sound waves, the first sound wave signal emitted from the first sound outlet and the second sound wave signal emitted from the second sound outlet form an acoustic dipole; The second sound guide channel is a strip-shaped channel, and the first end of the second sound guide channel is connected to the sound-generating device. The second end of the second sound guide channel is closed, and the second sound outlet is located in the middle of the second sound guide channel. The second sound outlet divides the second sound guide channel into a first sub-channel and a second sub-channel. When the second sound wave signal transmitted from the sound-generating device into the second sound guide channel propagates to the second sound outlet, part of it propagates to the outside through the second sound outlet, and the other part continues to propagate into the first sub-channel. The sound wave signal transmitted into the first sub-channel is reflected by the second end of the second sound guide channel and resonates with the sound wave signal in the first sub-channel to enhance the second sound wave signal.

2. The electronic device according to claim 1, characterized in that, The first sound outlet includes a strip-shaped slit, the strip-shaped slit includes a first segment and a second segment, and the distance between the first segment and the second sound outlet is greater than the distance between the second segment and the second sound outlet; The decorative cover is opposite to the first segment to conceal the first segment of the strip seam.

3. The electronic device according to claim 2, characterized in that, The first segment is positioned opposite to the sound-generating device, and the second segment is offset from the position of the sound-generating device.

4. The electronic device according to any one of claims 1 to 3, characterized in that, The ventilation of the first sound guide channel is higher than that of the second sound guide channel.

5. The electronic device according to any one of claims 1 to 3, characterized in that, The orthographic projection of the sound-generating device in the display module is offset from the position of the first sound outlet.

Images