Electronic device

Abstract

The application provides an electronic device, comprising: a display screen comprising a first area and a second area; a housing comprising a first panel, the first panel and the first area of the display screen are oppositely arranged along a second direction; a first space is formed between the first area and the first panel, the first panel is provided with one or more through holes in communication with the first space; a sealing assembly is arranged between the display screen and the first panel, and is used for sealing the first space along the circumference of the first area; and a piezoelectric ceramic assembly is arranged in the second area of the display screen. The sealing assembly comprises a first sealing member and a second sealing member, the first sealing member is used for fixedly connecting the first panel and the display screen, and the second sealing member is used for elastically connecting the first panel and the display screen; the first sealing member is arranged at least at a side edge of the first area away from the second area, and the second sealing member is arranged at least at a side edge of the first area close to the second area. The application not only has a good display screen sound effect, but also can protect user privacy.

Description

Technical Field

[0001] This application relates to the field of electronic technology, and more particularly to an electronic device. Background Technology

[0002] Vibration-based sound generation from a display screen is a sound-generating technology applied to electronic devices. Specifically, piezoelectric ceramics are disposed on the inner surface of the display screen. Piezoelectric ceramics are devices that can convert electrical signals into vibration signals. By applying different electrical signals to the piezoelectric ceramics, they can generate vibrations of different amplitudes and / or frequencies, thereby driving the display screen to vibrate and generate sound.

[0003] Typically, the display screen is mounted on the casing of an electronic device. In some cases, once the display screen is mounted on the casing, it is difficult to achieve good sound output. Summary of the Invention

[0004] Some embodiments of this application provide an electronic device that can drive a display screen to emit sound using piezoelectric ceramics. During the sound emission process, not only is the sound quality good, but user privacy is also protected.

[0005] In a first aspect, this application provides an electronic device, comprising: a display screen extending along a first plane, the display screen including a first region and a second region spaced apart along a first direction parallel to the first plane; a housing including a first panel, the first panel and the first region of the display screen being disposed opposite each other along a second direction perpendicular to the first plane; a first space being formed between the first region and the first panel, the first panel having one or more through holes communicating with the first space; a sealing assembly disposed between the display screen and the first panel, the sealing assembly surrounding the first region for sealing the first space circumferentially along the first region; and a piezoelectric ceramic assembly disposed in the second region of the display screen for driving the display screen to vibrate and generate sound; wherein the sealing assembly includes a first sealing member and a second sealing member sequentially disposed along the circumferential direction of the first region, the first sealing member being used to fixably connect the first panel and the display screen, and the second sealing member being used to elastically connect the first panel and the display screen; the first sealing member being at least disposed on the side of the first region away from the second region, and the second sealing member being at least disposed on the side of the first region close to the second region.

[0006] According to the embodiments of this application, when the vibration of the display screen is transmitted to the location of the second seal, the housing does not prevent the vibration of the display screen, and the vibration of the display screen can continue to propagate forward, thereby providing the display screen with a sufficient vibration area to ensure the sound output effect of the display screen. Furthermore, when the vibration of the display screen is transmitted to the location of the first seal, since the display screen is fixed to the housing at this location, the vibration of the display screen is terminated, thereby limiting the vibration area of ​​the display screen to a certain range to ensure user privacy.

[0007] In some embodiments, the first region includes a third side and a fourth side disposed opposite to each other along a third direction, the third direction being parallel to the first plane and perpendicular to the first direction; along the first direction, the third side is aligned with the middle region of the second region; and a second seal is also disposed at least at one end of the third side near the second region.

[0008] According to the embodiments of this application, after the vibration of the display screen is transmitted to the lower end point of the third side (the end point of the third side near the second region), it can continue to propagate upwards to expand the vibration area of ​​the display screen.

[0009] In some embodiments, a gap exists between the first seal and the second seal along the circumferential direction of the first region; the sealing assembly further includes a third seal for filling the gap.

[0010] In some embodiments, the third seal is an elastic colloid. Embodiments of this application can improve the sealing effect of the sealing assembly.

[0011] In some embodiments, the thickness of the third seal in its free state is greater than the thickness of the first seal.

[0012] In some embodiments, the housing further includes a second panel, which is disposed opposite to the display screen along a second direction and spaced apart from the first panel along a first direction; the electronic device further includes a connector, which is located on the side of the second region away from the first region along the first direction, for fixing the display screen and the second panel.

[0013] According to the embodiments of this application, once the vibration of the display screen is transmitted to the position of the connector, it will stop being transmitted forward, so as to limit the vibration range of the display screen to a certain area, thereby avoiding sound leakage and protecting user privacy.

[0014] In some embodiments, the connector includes strip-shaped adhesive extending along a third direction, and / or the connector includes a plurality of dot-shaped adhesives spaced apart along a third direction, the third direction being parallel to the first plane and perpendicular to the first direction.

[0015] In some implementations, the surface of the second panel facing the connector is made of a heat-insulating material.

[0016] In some implementations, one or more through holes are used to spatially connect a first space and electronic components located on the side of the first panel facing away from the display screen.

[0017] In some implementations, the electronic components include a front-facing camera assembly or a depth-sensing camera (also known as a "TOF camera") for the electronic device.

[0018] In some implementations, along a third direction, both the first and second regions are located in the middle of the display screen.

[0019] In some embodiments, the first seal includes an adhesive backing; and / or, the second seal includes foam or liquid silicone. Attached Figure Description

[0020] Figure 1A A front view of an electronic device provided in an embodiment of this application;

[0021] Figure 1B A cross-sectional view of an electronic device provided in an embodiment of this application;

[0022] Figure 2 Exemplary application scenarios for sound generation on electronic device displays provided in embodiments of this application;

[0023] Figure 3A Exploded views of electronic devices in some embodiments;

[0024] Figure 3B This is a schematic diagram of the display screen of an electronic device in some embodiments;

[0025] Figure 4 These are internal structural diagrams of electronic devices in some embodiments;

[0026] Figure 5A Exploded view of an electronic device provided in an embodiment of this application;

[0027] Figure 5B A front view (without the display screen) of the electronic device provided in the embodiments of this application;

[0028] Figure 5C A cross-sectional view of an electronic device provided in an embodiment of this application;

[0029] Figure 6 A schematic diagram illustrating the sound output effect of the electronic device provided in an embodiment of this application;

[0030] Figure 7 This is a schematic diagram illustrating the assembly process of the electronic device provided in an embodiment of this application. Detailed Implementation

[0031] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0032] This application provides an electronic device that can drive a display screen to emit sound using piezoelectric ceramics. The sound emitted by the display screen not only provides excellent sound quality but also protects user privacy.

[0033] In this application, the electronic device can be a mobile phone, laptop computer, tablet, large-screen device, wearable device (e.g., watch, smart glasses, helmet), augmented reality (AR) / virtual reality (VR) device, personal digital assistant (PDA), etc., and this application is not limited thereto. The following uses a mobile phone as an example of electronic device 100.

[0034] Figure 1A and Figure 1B An exemplary structural diagram of an electronic device 100 provided in an embodiment of this application is shown. Wherein, Figure 1A This is a front view of electronic device 100. Figure 1B This is a cross-sectional view of electronic device 100. In the figures of this paper, the X direction is the length direction of electronic device 100, the Y direction is the width direction of electronic device 100, and the Z direction is the thickness direction of electronic device 100. The X, Y, and Z directions are all perpendicular to each other.

[0035] For example, when the electronic device 100 is in portrait mode, the X direction is basically parallel to the vertical direction; when the electronic device 100 is in landscape mode, the X direction is basically parallel to the horizontal direction.

[0036] refer to Figure 1A and Figure 1B The electronic device 100 includes a display screen 10 and a housing 20, with the display screen 10 disposed on the housing 20. In this embodiment, the housing 20 includes a mid-frame 21 and a rear cover 22 (or "battery cover"). Along the Z-direction, the display screen 10 and the rear cover 22 are located on opposite sides of the mid-frame 21. In other embodiments, the housing 20 can be a one-piece structure (i.e., the mid-frame 21 and the rear cover 22 are integrated into one piece). Furthermore, an inner cavity 20a is formed inside the housing 20, in which various functional components (not shown) of the electronic device 100 can be disposed, such as a camera module, a speaker module, a communication module, a motherboard, a battery, etc.

[0037] The electronic device 100 can display its functions through the display screen 10, such as displaying a boot screen, unlock screen, application interface, etc. In some embodiments, the display screen 10 of the electronic device 100 also has a touch function, that is, the user can input data, commands, etc. by touching the display screen 10.

[0038] The display screen 10 may be an organic light-emitting diode (OLED) display screen, an active-matrix organic light-emitting diode (AMOLED) display screen, etc., and this embodiment is not limited to it.

[0039] The electronic device 100 can also generate sound via the display screen 10. Specifically, the electronic device 100 further includes a piezoelectric ceramic assembly 30, which is disposed on the inner surface of the display screen 10 (the surface of the display screen 10 facing the inner cavity 20a). For ease of observation, Figure 1A The position of the piezoelectric ceramic component 30 on the display screen 10 is shown by a dashed line. The piezoelectric ceramic component 30 is a device that can convert electrical signals into vibration signals. For example, when different voltage signals are applied to the piezoelectric ceramic component 30, it can generate vibrations of different amplitudes and / or frequencies. When the piezoelectric ceramic vibrates, it can drive the display screen 10 to vibrate, thereby causing the display screen 10 to emit sound.

[0040] Figure 2 An exemplary application scenario is shown where the display screen 10 emits sound. (Reference) Figure 2 When a user holds the electronic device 100 to make a call, they can bring the display screen 10 of the electronic device 100 close to their ear. At this time, the sound waves emitted by the display screen 10 can reach the user's ear, allowing the user to hear the call clearly. To ensure call quality, it is desirable that the sound waves emitted by the display screen 10 remain within a certain area (e.g., within the area Q1 covered by the user's ear) during the call. If the sound waves exceed this area, sound leakage may occur, meaning that others around the user may also hear the call; if the sound waves are smaller than this area, the sound wave propagation range is too small, and the user may not be able to hear the sound emitted by the display screen 10 clearly, affecting the call quality.

[0041] Furthermore, to conform to user habits (for example, when making a handheld call, users are accustomed to holding the electronic device 100 at the lower middle part and aligning the upper middle part of the electronic device 100 with their ear), the piezoelectric ceramic component 30 can be disposed at the upper middle part of the electronic device 100, and along the Y direction, the piezoelectric ceramic component 30 is located at the center of the electronic device 100. Additionally, in this document, directional terms such as "upper," "lower," "left," and "right" are based on the portrait orientation of the electronic device 100; for example, "upper middle part" refers to the upper middle part of the electronic device 100 in portrait orientation.

[0042] It should be noted that, Figure 2The example of a handheld phone demonstrates an application scenario where the display screen 10 emits sound. This application is not limited to this. In other embodiments, the display screen 10 can also be used for voice playback, recording playback, music playback, and other scenarios. Furthermore, in addition to emitting sound through the display screen 10, the electronic device 100 can also emit sound through other devices such as speakers.

[0043] Continue to refer to Figure 1A The electronic device 100 also includes a front-facing camera assembly 40 (as an example of an electronic component). The front-facing camera assembly 40 may include one or more cameras. Figure 1A (Two are shown). Users can take selfies using the front-facing camera component 40. For example, when a user is facing the display screen 10, they can capture their own image using the front-facing camera component 40 and observe the shooting effect in real time on the display screen 10. To optimize the shooting effect, the front-facing camera component 40 is positioned at the center of the electronic device 100 along the Y direction.

[0044] Figure 3A and Figure 3B The illustration shows the mounting configuration of the display screen 10 and the front-facing camera assembly 40 in some electronic devices 100'. Among them, Figure 3A An exploded view of the electronic device at 100'. Figure 3B This is a front view of display screen 10.

[0045] refer to Figure 3A The electronic device 100' includes a display screen 10, a middle frame 21, and a back cover 22 arranged sequentially along the Z direction. The middle frame 21 includes a bezel 211 and a panel 212, one side of the panel 212 ( Figure 3A The left side of the panel 212 is opposite to the display screen 10, and the other side of the panel 212 is... Figure 3A (As shown on the right) is opposite to the back cover 22. The panel 212, the frame 211 and the back cover 22 together form the inner cavity 20a of the electronic device 100'.

[0046] The display screen 10 is adhered to the panel 212 of the mid-frame 21 using adhesive 51. The front-facing camera assembly 40 is installed in the cavity 20a of the electronic device 100'. The mid-frame 21 has several through holes 23, allowing external light to enter the front-facing camera assembly 40 through these holes. (Reference) Figure 3B The area on panel 212 with through holes 23 forms a space R between it and display screen 10.

[0047] To prevent dust and moisture from entering the front-facing camera assembly 40 through the through-hole 23, the electronic device 100' also includes an adhesive 52 (the adhesive segment 511 is a shared segment of adhesive 51 and adhesive 52) that surrounds the circumferential space R. The adhesive 52 is used to bond the display screen 10 and the panel 212. In this way, the adhesive 52 can form a sealing strip that seals the circumferential space R, thereby preventing dust and moisture from entering the front-facing camera assembly 40 through the through-hole 23.

[0048] Figure 3B A front view of display screen 10 is shown (for ease of understanding). Figure 3B The positions of adhesive backing 51 and 52 are indicated by thick dashed lines. (Reference) Figure 3B After the display screen 10 and the panel 212 are bonded together with adhesive 52, the position of the adhesive 52 on the display screen 10 will be fixed. Thus, when the piezoelectric ceramic assembly 30 drives the display screen 10 to vibrate and produce sound, the vibration will terminate at the position of the adhesive 52 (i.e., the vibration area of ​​the display screen 10 is Q2). If the vibration area of ​​the display screen 10 is too small (e.g., smaller than the area Q1 covered by the human ear), it will affect the sound production effect of the display screen 10, and the user may not be able to hear the sound emitted by the display screen 10.

[0049] refer to Figure 4 In some embodiments, this problem can be solved by offsetting the front-facing camera component 40 (for easier observation). Figure 4 The diagram shows a front view of the electronic device 100” without the display screen 10. In this embodiment, the front-facing camera component 40 is positioned at the top corner (e.g., the upper left corner) of the electronic device 100”, rather than at the top center of the electronic device 100”. This allows for a larger distance between the adhesive backing 52 and the piezoelectric ceramic component 30, providing the display screen 10 with a sufficient vibration area, thereby ensuring the sound output of the display screen 10.

[0050] However, the offsetting of the front-facing camera component 40 may affect the user experience. For example, when a user takes a selfie directly in front of the display screen 10, the front-facing camera component 40 is not directly facing the user, but rather offset to one side (e.g., the left). Therefore, the image captured by the front-facing camera component 40 is not the centered view of the user, but rather a view offset to one side. In this case, the selfie image seen by the user on the display screen 10 will be inconsistent with their intuitive expectation, thus affecting the user experience.

[0051] Therefore, this embodiment provides an electronic device that achieves good display screen sound output regardless of the bias of the camera component (e.g., placing the front-facing camera component at the top center of the electronic device). In this embodiment, different sealing materials are used to seal the space R. Specifically, a first sealing material is used to seal the side of space R away from the piezoelectric ceramic component, providing a fixed connection between the display screen and the frame (therefore, the first sealing material can also be called a "rigid sealing material"); a second sealing material is used to seal the side of space R closer to the piezoelectric ceramic component, providing an elastic connection between the display screen and the frame (therefore, the second sealing material can also be called a "flexible sealing material"). In some embodiments, the rigid sealing material can be an adhesive backing, and the flexible sealing material can be foam or liquid silicone.

[0052] In this way, when the vibration of the display is transmitted to the location of the flexible seal, the mid-frame does not prevent the vibration of the display, and the vibration can continue to propagate forward, thus providing the display with a sufficient vibration area to ensure the sound output of the display. Conversely, when the vibration of the display is transmitted to the location of the rigid seal, since the display is fixed to the mid-frame at this point, the vibration of the display is terminated, thereby limiting the vibration area of ​​the display to a certain range to ensure user privacy.

[0053] Figures 5A to 5C A schematic diagram of the structure of the electronic device 100 provided in this embodiment is shown. Figure 5A An exploded view of electronic device 100. Figure 5B A front view of electronic device 100 after removing display screen 10. Figure 5C Cross-sectional view of electronic device 100 ( Figure 5B (AA section diagram).

[0054] refer to Figures 5A to 5C The electronic device 100 includes a display screen 10, a mid-frame 21, and a rear cover 22 connected sequentially along the Z-direction (as a second direction). As described above, the mid-frame 21 and the rear cover 22 together form the housing 20 of the electronic device 100. In other embodiments, the mid-frame 21 and the rear cover 22 may also be a single-piece structure.

[0055] Display screen 10 extends along the XY plane (as the first plane). In some examples, display screen 10 can be a flat screen, the plane in which it lies can be parallel to the XY plane. In other examples, display screen 10 can also be a curved screen, which can have a slight convexity or concavity relative to the XY plane.

[0056] The middle frame 21 includes a frame 211 and a panel 212. The frame 211 extends circumferentially along the electronic device 100 and can form the side frame of the electronic device 100. Therefore, the frame 211 can also be understood as the side wall of the electronic device 100. The panel 212 is disposed on the frame 211 and is disposed opposite to the display screen 10 in the Z direction. The display screen 10 can be bonded to the panel 212 by adhesive 51. In addition, the side of the display screen 10 can also be bonded to the middle frame 21 by sealant (not shown) to seal the space between the display screen 10 and the middle frame 21. The back cover 22 is connected to the frame 211, and the back cover 22 and the middle frame 21 together form the inner cavity 20a of the electronic device 100.

[0057] The display screen 10 includes a first region 11 and a second region 12 that are positioned opposite each other along the X direction (as an example of a first direction). For ease of understanding, Figure 5A The locations of the first region 11 and the second region 12 are outlined with dashed lines. Along the Z-direction, the first region 11 is opposite the front-facing camera assembly 40 (as an example of an electronic component), and the second region 12 is used to mount the piezoelectric ceramic assembly 30. Exemplarily, the dimensions of the second region 12 are the same as the dimensions of the mounting surface of the piezoelectric ceramic assembly 30.

[0058] The piezoelectric ceramic component 30 can drive the display screen 10 to vibrate and produce sound. For example, the piezoelectric ceramic component 30 can be bonded to the inner surface of the display screen 10 (the surface of the display screen 10 facing the inner cavity 20a). Additionally, a mounting hole 24 can be provided on the panel 212 of the mid-frame 21, through which the piezoelectric ceramic component 30 can extend into the inner cavity 20a of the electronic device 100.

[0059] In this application, "A and B are positioned opposite each other along a certain direction" means that A and B are face-to-face in that direction, and their projections along that direction at least partially overlap. Furthermore, A and B can be spaced apart or adjacent to each other in that direction.

[0060] The panel 212 of the middle frame 21 includes a first panel 212a, which is disposed opposite to the first area 11 of the display screen 10. In some embodiments, the first panel 212a can be understood as a portion of the panel 212. When the display screen 10 is mounted on the panel 212, there is a space R between the first panel 212a and the first area 11 of the display screen 10. One or more through holes 23 (two through holes 23 are shown in the figure) are provided on the first panel 212a, and each through hole 23 communicates with the space R. In this embodiment, the shape of the through holes 23 is not limited. The through holes 23 can be any shape, such as circular, square, or irregular, as long as they penetrate the first panel 212a along the Z direction.

[0061] The front-facing camera component 40 (as an example of an electronic component) is mounted on the side of the through-hole 23 facing away from the display screen 10. That is, the through-hole 23 spatially connects the space R and the front-facing camera component 40. It is understood that the front-facing camera component 40 can exchange light with the outside world of the electronic device 100 through the through-hole 23. In this embodiment, the front-facing camera component 40 is located at the top center of the electronic device 100. In other embodiments, the front-facing camera component 40 can also be located in other positions, such as the upper left or upper right corner of the electronic device 100.

[0062] In this embodiment, the front-facing camera component 40 is used as an example of an electronic component. In other embodiments, the electronic component can be other components, such as a depth-sensing camera (also known as a "TOF camera"), a flash, a breathing light, or other components that need to interact with the outside world of the electronic device 100 through light, or a motor, a speaker, or other components that do not need to exchange light with the outside world of the electronic device 100.

[0063] In this embodiment, the electronic component and the piezoelectric ceramic component 30 are arranged opposite each other along the X direction (corresponding to the first region 11 and the second region 12 of the display screen 10 being arranged opposite each other along the X direction). That is, this embodiment uses the X direction as an example of the first direction. In other embodiments, the first direction can also be other directions parallel to the XY plane, such as the Y direction. That is, in this embodiment, the electronic component and the piezoelectric ceramic component 30 are arranged opposite each other along the Y direction (corresponding to the first region 11 and the second region 12 of the display screen 10 being arranged opposite each other along the Y direction).

[0064] Continue to refer to Figure 5A and Figure 5C Since the first panel 212a has a through hole 23, the front-facing camera component 40 and the space R can be spatially connected through the through hole 23. In this way, dust, moisture, etc. in the inner cavity 20a of the electronic device 100 may enter the front-facing camera component 40, affecting the normal use of the front-facing camera component 40.

[0065] Therefore, the electronic device 100 also includes a sealing component 60, which is disposed between the display screen 10 and the first panel 212a, and is arranged around the first region 11 in the circumferential direction (the circumferential direction of the first region 11) to seal the space R in the circumferential direction of the first region 11. In this way, the sealing component 60 can block the transmission of dust and moisture in the inner cavity 20a to the front-facing camera component 40, thus protecting the front-facing camera component 40.

[0066] Specifically, refer to Figure 5AThe first region 11 includes four sides, namely side 111, side 112, side 113, and side 114. Side 111 (as the first side) and side 112 (as the second side) are positioned opposite each other along the X-direction, and side 113 (as the third side) and side 114 (as the fourth side) are positioned opposite each other along the Y-direction. It can be understood that along the X-direction, side 111 is the side of the first region 11 furthest from the second region 12, and side 112 is the side of the first region 11 closest to the second region 12.

[0067] This embodiment does not limit the extended shape of each side of the first region 11. Each side can be straight (e.g., side 111 is straight), or it can be curved or broken. Adjacent sides can be perpendicular to each other (e.g., side 111 and side 113 are perpendicular to each other), or they can not be perpendicular.

[0068] The sealing assembly 60 extends along sides 111, 112, 113, and 114 to circumferentially surround the first region 11. The segments extending along sides 111, 112, 113, and 114 of the sealing assembly 601 are respectively sealing segment 60a, sealing segment 60b, sealing segment 60c, and sealing segment 60d. It is understood that the extension shape of each sealing segment is consistent with the extension shape of the corresponding side.

[0069] To ensure good sound output for the display screen 10, in this embodiment, the sealing assembly 60 includes a rigid sealing member 61 (i.e., the first sealing member) and an elastic sealing member 62 (i.e., the second sealing member) sequentially arranged circumferentially along the first region 11. For ease of observation, Figure 5A and Figure 5B The rigid seal 61 and the resilient seal 62 are shown by different shading lines. (Reference) Figure 5A and Figure 5B The rigid seal 61 is provided at least on the side 111, and the elastic seal 62 is provided at least on the side 112. That is, the rigid seal 61 includes at least the sealing section 60a, and the elastic seal 62 includes at least the sealing section 60b.

[0070] The rigid seal 61 provides a fixed connection between the display screen 10 and the first panel 212a, while the elastic seal 62 provides an elastic connection between the display screen 10 and the first panel 212a. In other words, the area of ​​the display screen 10 where the rigid seal 61 is located will not shift or will only shift very slightly relative to the first panel 212a (denoted as δ1), while the area of ​​the display screen 10 where the elastic seal 62 is located can shift significantly relative to the first panel 212a (denoted as δ2). The displacement δ2 is much greater than the displacement δ1; for example, the displacement δ2 is more than five times the displacement δ1. For example, the rigid seal 61 can be an adhesive backing, such as acrylic pressure-sensitive adhesive, butyl rubber, silicone sealant, etc. The elastic seal can be foam or liquid silicone.

[0071] It is understandable that, since the sealing section 60b provides an elastic connection between the display screen 10 and the first panel 212a, the vibration of the display screen 10, after being transmitted to the side 112, can continue to be transmitted forward to expand the sound-emitting area of ​​the display screen 10, thereby achieving a better sound effect. Furthermore, since the sealing section 60a provides a fixed connection between the display screen 10 and the first panel 212a, the vibration of the display screen 10 will stop being transmitted forward after being transmitted to the side 111, thus limiting the vibration range of the display screen 10 to a certain area, thereby preventing sound leakage and protecting user privacy.

[0072] The distance D1 between the side edge 112 and the second region 12 can be determined based on the sound emission effect of the display screen 10, for example, by means of testing or simulation. In some embodiments, the distance D1 between the side edge 112 and the second region 12 can be half of the sound wave region Q1 covered by the human ear when the human ear is close to the display screen 10, for example, 2cm to 4cm.

[0073] In some embodiments, along the X direction, the side edge 113 is aligned with the central region of the second region 12. That is, along the X direction, the side edge 113 is projected into the central region of the second region 12. The central region of the second region 12 is located at the center of the second region 12 along the Y direction, and the ratio of the size of the central region along the Y direction to the size of the second region 12 along the Y direction is a predetermined value, for example, a value between 0.2 and 0.6.

[0074] In this embodiment, since the side 113 is aligned with the center of the second region 12, the end of the sealing section 60c (the sealing section provided on the side 113) near the second region 12 is provided with an elastic sealing material. That is, the elastic seal 62 is also provided at the end of the side 113 near the second region 12. In this way, after the vibration of the display screen 10 is transmitted to the lower end point of the side 113 (the end point of the side 113 near the second region 12), it can continue to propagate upwards to expand the vibration area of ​​the display screen 10.

[0075] refer to Figure 5B Since the elastic seal 62 and the rigid seal 61 are made of different materials, a certain gap may exist between them after they are placed on the first panel 212a. Therefore, the sealing assembly 60 may further include a third seal 63, which fills the gap between the elastic seal 62 and the rigid seal 61 to ensure circumferential sealing of the space R.

[0076] In some embodiments, the third seal 63 is an elastic colloid (e.g., a damming adhesive), so that when the display screen 10 and the mid-frame 21 panel 212 are bonded together, the third seal 63 can be compressed, thereby improving the sealing effect of the sealing assembly 60. Exemplarily, the thickness (dimension along the Z direction) of the third seal 63 in its free state is greater than the thickness of the first seal, to further improve the sealing effect.

[0077] Continue to refer to Figures 5A to 5C The panel 212 of the middle frame 21 includes a second panel 212b. In some embodiments, the second panel 212b can be understood as another portion of the panel 212 (different from the area of ​​the first panel 212a). The second panel 212b is disposed opposite to the display screen 10 in the Z direction and opposite to the first panel 212a in the X direction. In some embodiments, the second panel 212b is located below the first panel 212a.

[0078] To further enhance the privacy protection of the electronic device 100, the electronic device 100 also includes a connector 70. Along the X-direction, the connector 70 is located on the side of the second region 12 of the display screen 10 facing away from the first region 11, and is used to securely connect the display screen 10 and the second panel 212b. That is, at the location of the connector 70, the display screen 10 and the second panel 212b are fixedly connected. Thus, when vibrations of the display screen 10 are transmitted to the location of the connector 70, they will stop being transmitted forward, thereby limiting the vibration range of the display screen 10 to a certain area, preventing sound leakage and protecting user privacy.

[0079] Along the X direction, the distance D2 between the connector 70 and the second region 12 can be determined based on the sound emission effect of the display screen 10, for example, by means of testing or simulation. In some embodiments, the distance D2 between the connector 70 and the second region 12 can be half of the sound wave region Q1 covered by the human ear when the human ear is close to the display screen 10, for example, 2cm to 4cm.

[0080] In some embodiments, the connector 70 is an adhesive (e.g., hot melt adhesive). For example, the connector 70 may be a strip-shaped adhesive extending along the Y direction (as a third direction), or the connector 70 may be a plurality of dot-shaped adhesives spaced apart along the Y direction (e.g., Figure 5A and Figure 5B (As shown).

[0081] refer to Figure 5C The surface of the second panel 212b facing the connector 70 (e.g., hot melt adhesive) can be made of a heat-insulating material 212b-1 (e.g., plastic). This prevents heat generated by the hot melt adhesive from dissipating to the outside of the electronic device 100, thus avoiding a burning sensation for the user when holding the electronic device 100. The surface of the second panel 212b facing away from the connector 70 (e.g., hot melt adhesive) can be made of a metal material 212b-2.

[0082] For example, the dimension of the connector 70 along the Y direction can be determined according to the sound emission effect of the display screen 10. In some embodiments, the dimension of the connector 70 along the Y direction can be substantially the same as the dimension of the second region 12 along the Y direction, or it can be slightly smaller than the dimension of the second region 12 along the Y direction, for example, 0.5 to 0.8 times the dimension of the second region 12 along the Y direction.

[0083] Figure 6 A schematic diagram of the sound-emitting area of ​​the display screen 10 provided in an embodiment of this application is shown. (See reference...) Figure 6 The display screen 10 includes a fixed area, a moderately fixed area, and an amplitude area. The fixed area can be the bonding area between the piezoelectric ceramic component 30 and the display screen 10 (the piezoelectric ceramic component 30 can be bonded to the display screen 10 with adhesive backing), and the fixed area can be understood as the vibration center of the display screen 10 when it emits sound.

[0084] The appropriate fixing area is the area where the display screen 10 is fixedly connected to the panel 212 of the middle frame 21. For example, the upper appropriate fixing area is the area where the sealing section 60a of the sealing component 60 is installed, the upper appropriate fixing area is the area where the connector 70 is installed, and the left and right appropriate fixing areas are the left and right sides of the adhesive 51, respectively. When the vibration of the display screen 10 is transmitted to the appropriate fixing area, it will stop being transmitted forward, so as to limit the vibration range of the display screen 10 to a certain area, thereby avoiding sound leakage and protecting user privacy.

[0085] The area between the fixed area and the moderately fixed area is the amplitude area. Within the amplitude area, the display screen 10 is basically not constrained by the middle frame 21 and the panel 212, and can generate a large amplitude vibration, thereby ensuring the sound output effect of the display screen 10.

[0086] The following describes an exemplary assembly process for the electronic device 100 provided in an embodiment of this application. (Refer to...) Figure 7When assembling the electronic device 100, firstly, the mid-frame assembly (including the mid-frame 21 and the rigid seal 61, elastic seal 62, and adhesive 51 pre-installed on the mid-frame 21 panel 212) is placed in an adhesive dispensing fixture, and sealant (not shown) and damming adhesive 63 are applied. Then, the display screen 10 is mounted on the mid-frame 21 and fixed under pressure. Afterward, the assembled display screen 10 and mid-frame 21 are placed in an automated assembly equipment. Using CCD positioning, the piezoelectric ceramic component 30 is passed through the mounting hole 24 on the mid-frame 21 panel 212, attached to the display screen 10, and fixed under pressure. Then, the FPC and gold fingers of the piezoelectric ceramic component 30 are assembled into the corresponding positions in the inner cavity 20a of the housing 20. Finally, the front-facing camera component 30, motherboard, battery, etc., are assembled into the corresponding positions in the inner cavity 20a of the housing 20, and the back cover 22 is closed, thus completing the assembly of the electronic device 100.

[0087] In the above description of this embodiment, unless otherwise stated, " / " means "or". For example, A / B can identify A or B. The "and / or" in this document is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, B exists alone, and A and B exist simultaneously.

Claims

1. An electronic device, characterized in that, include: The display screen extends along a first plane and includes a first region and a second region spaced apart along a first direction, the first direction being parallel to the first plane. The housing includes a first panel, the first panel and the first area of ​​the display screen are disposed opposite each other along a second direction, the second direction being perpendicular to the first plane; a first space is formed between the first area and the first panel, and the first panel is provided with one or more through holes communicating with the first space; A sealing assembly is disposed between the display screen and the first panel, the sealing assembly surrounds the first region, and is used to seal the first space circumferentially along the first region; A piezoelectric ceramic component, wherein the piezoelectric ceramic component is disposed in the second region of the display screen, and is used to drive the display screen to vibrate and generate sound; The sealing assembly includes a first sealing member and a second sealing member arranged sequentially along the circumference of the first region. The first sealing member is used to fix the first panel and the display screen, and the second sealing member is used to elastically connect the first panel and the display screen. The first sealing member is at least located on the side of the first region away from the second region, and the second sealing member is at least located on the side of the first region close to the second region.

2. The electronic device according to claim 1, characterized in that, The first region includes a third side and a fourth side disposed opposite to each other along a third direction, the third direction being parallel to the first plane and perpendicular to the first direction; along the first direction, the third side is aligned with the central region of the second region; The second seal is also provided at least at one end of the third side near the second region.

3. The electronic device according to claim 1, characterized in that, Along the circumferential direction of the first region, there is a gap between the first seal and the second seal; The sealing assembly further includes a third seal for filling the gap.

4. The electronic device according to claim 3, characterized in that, The third sealing element is an elastic colloid.

5. The electronic device according to claim 4, characterized in that, The thickness of the third seal in its free state is greater than that of the first seal.

6. The electronic device according to claim 1, characterized in that, The housing further includes a second panel, which is disposed opposite to the display screen along the second direction and spaced apart from the first panel along the first direction; The electronic device further includes a connector located on the side of the second region opposite to the first region along the first direction, for fixing the display screen and the second panel together.

7. The electronic device according to claim 6, characterized in that, The connector includes strip-shaped adhesive extending along a third direction, and / or the connector includes a plurality of dot-shaped adhesives spaced apart along the third direction, the third direction being parallel to the first plane and perpendicular to the first direction.

8. The electronic device according to claim 6, characterized in that, The surface of the second panel facing the connector is made of heat-insulating material.

9. The electronic device according to claim 1, characterized in that, The one or more through holes are used to spatially connect the first space and electronic components located on the side of the first panel facing away from the display screen.

10. The electronic device according to claim 9, characterized in that, The electronic components include a front-facing camera or a depth-sensing camera of the electronic device.

11. The electronic device according to claim 1, characterized in that, Along a third direction, both the first region and the second region are located in the middle of the display screen.

12. The electronic device according to claim 1, characterized in that, The first seal includes an adhesive backing; and / or, the second seal includes foam or liquid silicone.

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