Display device

Abstract

The embodiment of the invention relates to the technical field of display, in particular to display equipment. The display device comprises a display panel, a backlight assembly, a supporting piece, an exciter and a back plate, the backlight assembly comprises a plurality of lamp panels, at least part of the lamp panels are connected with the vibration output end of the exciter, and the supporting piece is arranged between the lamp panels and the display panel. The exciter excites the display panel to vibrate through part of the lamp panel and the supporting piece, the mass driven by the exciter is reduced, the loss of vibration energy is reduced, and the vibration transmission efficiency is guaranteed. Part of the lamp panels are connected with the back plate, and a gap is formed between the part of the lamp panels and the vibrating lamp panel in the vibrating direction, so that the vibrating lamp panel and the peripheral structure of the vibrating lamp panel are in an open type design, the air reaction force of the vibrating lamp panel is reduced, the pushing resistance is reduced, and the vibration transmission efficiency is improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of display technology, and in particular, to a display device. Background Art

[0002] The display device utilizes "flat panel sound technology" by placing an exciter behind the display panel. Under the action of the exciter, the display panel vibrates and emits sound waves, which produce sound. In other words, the display panel of the display device can be used for both display and sound generation instead of speakers.

[0003] In related technologies, the exciter directly drives the display panel to produce sound. The display panel has a large overall area and a large mass. The display panel produces the largest amplitude at the exciter position. As it moves away from the exciter position, the vibration energy decays rapidly and the amplitude gradually decreases, resulting in poor acoustic effects. Summary of the Invention

[0004] Some embodiments of the present application provide a display device that can improve vibration transmission efficiency and thereby enhance acoustic effects.

[0005] Some embodiments of the present application provide a display device, comprising:

[0006] a display panel configured to display image information;

[0007] A backlight assembly is located on one side of the display panel; the backlight assembly includes:

[0008] A plurality of light panels, wherein the plurality of light panels are arranged side by side on the same plane;

[0009] a support member, supported between a portion of the light board and the display panel;

[0010] a back panel, supported on a side of the portion of the light panel facing away from the display panel;

[0011] An exciter is configured to drive a portion of the lamp panel to vibrate, and when the portion of the lamp panel vibrates, there is a gap between the portion of the lamp panel supported by the back plate along the vibration direction.

[0012] In the display device of some embodiments of the present application, the backlight assembly includes a plurality of lamp boards, at least some of the plurality of lamp boards are connected to the vibration output end of the exciter, and a support member is arranged between the lamp board and the display panel. The exciter excites the display panel to vibrate through some of the lamp boards and the support member, thereby reducing the mass driven by the exciter, reducing the loss of vibration energy, and ensuring the vibration transmission efficiency; some of the plurality of lamp boards are connected to the back panel, and there is a gap between the some of the lamp boards and the vibrating lamp boards along the vibration direction, so that the vibrating lamp board and its surrounding structure are of open design, thereby reducing the air reaction force of the vibrating lamp board, reducing the pushing resistance, and helping to improve the vibration transmission efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the implementation methods of some embodiments of the present application or related technologies, the following is a brief introduction to the drawings required for use in the description of the embodiments or related technologies. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0014] Figure 1 A schematic diagram of an operation scenario between a display device and a control device according to some embodiments of the present application;

[0015] Figure 2 A block diagram of a display device according to some embodiments of the present application;

[0016] Figure 3 A schematic cross-sectional view of a display device according to some embodiments of the present application;

[0017] Figure 4 Schematic diagram of different states of the first light board and the second light board in some embodiments of the present application;

[0018] Figure 5 A schematic cross-sectional view of a display device according to some embodiments of the present application;

[0019] Figure 6 This is a schematic diagram of the connection between the first light board and the backboard in some embodiments of the present application;

[0020] Figure 7 A schematic cross-sectional view of a display device according to some embodiments of the present application;

[0021] Figure 8 This is a schematic diagram of the positions of the first light panel and the back panel in some embodiments of the present application;

[0022] Figure 9 This is a schematic diagram of the positions of the first light panel and the back panel in some embodiments of the present application;

[0023] Figure 10This is a schematic diagram of the positions of the first light panel and the back panel in some embodiments of the present application;

[0024] Figure 11 This is a schematic diagram of the positions of the first light panel and the back panel in some embodiments of the present application;

[0025] Figure 12 A schematic diagram of the arrangement of the exciter in some embodiments of the present application;

[0026] Figure 13 A schematic diagram of the arrangement of the exciter in some embodiments of the present application;

[0027] Figure 14 This is a schematic structural diagram of an actuator according to some embodiments of the present application;

[0028] Figure 15 This is a schematic diagram of the structure of the springs of some embodiments of the present application;

[0029] Figure 16 This is a schematic diagram of the structure of the springs of some embodiments of the present application;

[0030] Figure 17 This is a schematic diagram of the structure of the springs of some embodiments of the present application;

[0031] Figure 18 This is a schematic diagram of the structure of the springs of some embodiments of the present application;

[0032] Figure 19 This is a schematic diagram of the structure of the springs of some embodiments of the present application;

[0033] Figure 20 A schematic cross-sectional view of a display device according to some embodiments of the present application;

[0034] Figure 21 A schematic cross-sectional view of a display device according to some embodiments of the present application;

[0035] Figure 22 A schematic cross-sectional view of a display device according to some embodiments of the present application;

[0036] Figure 23 Schematic diagram of the state of the support member in some embodiments of the present application;

[0037] Figure 24 A schematic cross-sectional view of a display device according to some embodiments of the present application;

[0038] Figure 25 A schematic cross-sectional view of a display device according to some embodiments of the present application;

[0039] Figure 26 A schematic cross-sectional view of a display device according to some embodiments of the present application;

[0040] Figure 27 A schematic cross-sectional view of a display device according to some embodiments of the present application;

[0041] Figure 28 A schematic cross-sectional view of a display device according to some embodiments of the present application;

[0042] Figure 29 A schematic cross-sectional view of a display device according to some embodiments of the present application;

[0043] Figure 30 A schematic cross-sectional view of a display device according to some embodiments of the present application;

[0044] Figure 31 This is a schematic diagram of the arrangement of support members in some embodiments of the present application;

[0045] Figure 32 Schematic diagram of the arrangement of the sound channel isolation structure in some embodiments of the present application;

[0046] Figure 33 A schematic diagram of the arrangement of a backlight assembly according to some embodiments of the present application;

[0047] Figure 34 This is a schematic structural diagram of a first light board in some embodiments of the present application;

[0048] Figure 35 This is a schematic structural diagram of a first light board in some embodiments of the present application;

[0049] Figure 36 This is a schematic structural diagram of a first light board in some embodiments of the present application;

[0050] Figure 37 A cross-sectional view of a display device provided in some embodiments of the present application;

[0051] Figure 38 A partial cross-sectional view of a display device provided in some embodiments of the present application;

[0052] Figure 39 A partial cross-sectional view of a display device provided in some embodiments of the present application;

[0053] Figure 40 A schematic diagram illustrating the connection between the first back plate and the second back plate in the display device provided in some embodiments of the present application;

[0054] Figure 41 A schematic structural diagram of a third connecting member in a display device provided in some embodiments of the present application;

[0055] Figure 42 A side view of a third connecting member in a display device provided in some embodiments of the present application;

[0056] Figure 43Another structural schematic diagram of a third connecting member in a display device provided in some embodiments of the present application;

[0057] Figure 44 A schematic cross-sectional view of a display device according to some embodiments of the present application;

[0058] Figure 45 A schematic structural diagram of a vibration-damping connector for a display device provided in some embodiments of the present application;

[0059] Figure 46 A schematic structural diagram of a vibration-damping connector for a display device provided in some embodiments of the present application;

[0060] Figure 47 A schematic diagram of the three-dimensional structure of a display device provided in some embodiments of the present application;

[0061] Figure 48 A schematic cross-sectional view of a display device according to some embodiments of the present application;

[0062] Figure 49 A schematic cross-sectional view of a display device according to some embodiments of the present application;

[0063] Figure 50 A schematic cross-sectional view of a display device according to some embodiments of the present application;

[0064] Figure 51 A schematic cross-sectional view of a display device according to some embodiments of the present application;

[0065] Figure 52 This is a schematic cross-sectional view of a display device according to some embodiments of the present application.

[0066] Description of reference numerals:

[0067] 10: Display device; 20: Smart device; 30: Server;

[0068] 100: display panel; 110: optical film assembly; 111: brightness enhancement film; 112: fluorescent film; 113: diffusion film; 120: display film layer;

[0069] 200: Backlight assembly; 200a: Vibration area; 200b: Vibration suppression area; 210: First light board; 211: Connecting member; 2111: Connecting body; 2112: Elastic portion; 212: Sounding plate; 2121: Weight reduction structure; 213: First connecting member; 214: Limiting portion; 215: Limiting member; 2151: Clamping hole; 2152: Supporting portion; 216: Elastic connecting member; 220: Second light board; 221: Second connecting member; 230: Board body; 231: Base layer; 234: Composite reinforcement layer; 240: Light source; 250: Reinforcement structure; 250a: First reinforcement structure; 250b: Second reinforcement structure;

[0070] 300: support member; 301: buffer portion; 302: rigid portion; 310: first adhesive structure; 320: suction cup structure; 340: sound channel isolation structure;

[0071] 400: actuator; 400a: first actuator; 400b: second actuator; 401: actuator body; 410: actuator; 411: third connecting structure; 420: damper; 4201: body; 4202: first connecting part; 4203: second connecting part; 421: fiber layer; 422: heat-conducting layer; 423: heat-conducting film; 4231: through hole; 430: housing; 440: pressure ring; 450: magnetic component; 451: magnetic conductive component; 452: magnetic component; 460: elastic pad; 470: damping block; 480: fixing pin; 490: vibration transmission structure; 491: viscous buffer structure; 40a: vibration stabilizing member;

[0072] 500: back panel; 501: back panel body; 502: first side panel; 503: opening; 504: convex hull; 510: first back panel; 511: first connecting structure; 5111: first bending portion; 5112: first mounting portion; 520: second back panel; 521: second connecting structure; 5211: second bending portion; 5212: second mounting portion; 530: third connecting member; 531: elastic member; 532: third connecting portion; 540: third back panel;

[0073] 610: first sealing structure; 620: second sealing structure;

[0074] 700: rear housing; 710: high-frequency filter structure; 720: buffer; 730: first mounting hole; 740: second mounting hole; 750: auxiliary connecting plate;

[0075] 800: circuit board; 810: vibration-damping connector; 8101: flexible body; 811: first slot; 812: second slot; 813: fastening hole; 8131: first hole section; 8132: second hole section; 814: fastener; 8141: head; 8142: tail; 8143: middle;

[0076] 900: control device; 901: tuner and demodulator; 902: communicator; 903: detector; 904: external device interface; 905: controller; 906: display; 907: audio output interface; 908: memory; 909: power supply; 910: user interface;

[0077] M: cavity; N: magnetic air gap. DETAILED DESCRIPTION

[0078] In order to make the purpose, implementation mode and advantages of the present application clearer, the exemplary implementation mode of the present application will be clearly and completely described below in conjunction with the drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0079] It should be noted that the brief descriptions of terms in this application are only for the purpose of facilitating the understanding of the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise specified, these terms should be understood according to their ordinary and usual meanings.

[0080] In addition, the terms "comprises" and "comprising" and any variations thereof are intended to cover but not exclude inclusion, for example, a product or device comprising a list of components is not necessarily limited to those components expressly listed but may include other components not expressly listed or inherent to such product or device.

[0081] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0082] The terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0083] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0084] Conventional display devices, such as televisions, are equipped with speakers to output sound. These speakers are typically mounted on the bottom or back of the display device, resulting in a separation between the sound and image positions, a poor viewing experience, and the inability to provide a unified audiovisual experience. In related technologies, an actuator is provided on the display device to enable the display panel to generate sound on the screen, allowing the display panel to have both display and sound functions, achieving a unified audiovisual experience.

[0085] In related technologies, an exciter directly drives the display panel to produce sound. For example, in OLED displays, the display panel has a large overall area and is heavy. The display panel produces the highest amplitude at the exciter location. As it moves away from the exciter location, the vibration energy rapidly decays, the amplitude gradually decreases, and vibration efficiency is low, resulting in poor acoustic effects. Increasing the amplitude to increase vibration energy presents a conflict between the display panel's amplitude and its mounting reliability and display functionality, limiting the display panel's sound generation to mid- and high-frequency frequencies.

[0086] In related technologies, the exciter drives the display panel to make sound through the light board. For example, in a liquid crystal display device, since multiple light boards are assembled to form a whole, there is also the problem of large overall area and mass, which leads to rapid attenuation of vibration energy.

[0087] In view of this, some embodiments of the present application divide the lamp boards into two categories, wherein the first type of lamp board is connected to the vibration output end of the exciter, and a support is arranged between the first type of lamp board and the display panel. The exciter excites the display panel to vibrate through the first type of lamp board and the support, thereby reducing the mass driven by the exciter, reducing the loss of vibration energy, and ensuring the vibration transmission efficiency; the second type of lamp board is connected to the back panel, and the second type of lamp board and the first type of lamp board are spaced apart along the vibration direction, so that the vibrating first type of lamp board and its surrounding structure are of open design, reducing the air reaction force of the first type of lamp board, reducing the pushing resistance, and helping to improve the vibration transmission efficiency.

[0088] In the related art, compared with display devices that use OLED light sources as light sources, because OLED displays are self-luminous screens and the OLED displays themselves have a certain degree of flexibility, an exciter is set on the back of the OLED display, and the OLED display can be elastically deformed and make sounds under the excitation vibration of the exciter. In liquid crystal display devices, however, the liquid crystal display device has a backlight module, and the exciter cannot be directly set on the back of the display panel. In addition, the lamp board in the backlight module is relatively hard, making it difficult to couple and transmit its own vibration to the display panel, and the transmission efficiency of the vibration force is low. Therefore, a support member can be set between the display panel and the lamp board of a Mini-LED display device or other liquid crystal display device, and the vibration of the lamp board can be transmitted to the display panel using it as a vibration transmission medium, thereby improving the transmission efficiency of vibration from the lamp board to the display panel. In addition, the support member can maintain the gap in the cavity between the lamp board and the display panel within a preset range, avoiding the risk of collision noise and abrasion caused by the light source and the display panel touching each other at a certain position.

[0089] The following will be combined with the accompanying drawings of some embodiments of the present application to clearly and completely describe the technical solutions of some embodiments of the present application. Obviously, the embodiments described are only some embodiments of the present application, not all embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of this application.

[0090] The display device provided in the embodiments of the present application may have various implementation forms, for example, it may be a television, a smart TV, a monitor, an electronic bulletin board, an electronic table, etc. Figure 1 and Figure 2 This is a specific implementation of the display device of the present application.

[0091] Figure 1 This is a schematic diagram of an operation scenario between a display device and a control device according to an exemplary embodiment of the present application. Figure 1 As shown, the user can operate the display device 10 through the smart device 20 or the control device 900. In some embodiments, the display device 10 also communicates data with the server 30. The display device 10 can be allowed to communicate via a local area network (LAN), a wireless local area network (WLAN), and other networks. The server 30 can provide various content and interactions to the display device 10. The server 30 can be a cluster or multiple clusters, and can include one or more types of servers.

[0092] Figure 2 A schematic diagram of the structure of a display device in an example is shown in FIG. Figure 2 The display device 10 includes a tuner-demodulator 901, which receives broadcast television signals via a wired or wireless reception method, and demodulates audio and video signals, such as EPG data signals, from multiple wireless or wired broadcast television signals.

[0093] In some embodiments, the display device 10 includes a controller 905 ; in some embodiments, the controller includes a processor, a video processor, an audio processor, a graphics processor, RAM, ROM, and first to nth interfaces configured as input / output.

[0094] In some embodiments, the display device 10 includes an audio output interface 907;

[0095] In some embodiments, the display device 10 includes a memory 908;

[0096] In some embodiments, the display device 10 includes a power supply 909;

[0097] In some embodiments, the display device 10 includes a display 906, which includes a display screen component configured to present a picture, and a driving component for driving the image display, and is configured to receive an image signal output from a controller to display video content, image content, and a menu control interface component and a user control UI interface.

[0098] The display 906 may be a liquid crystal display, an OLED display, or a projection display, and may also be a projection device and a projection screen.

[0099] In some embodiments, the display device 10 includes a communicator 902, which is a component configured to communicate with an external device or server according to various communication protocols. For example, the communicator 902 may include at least one of a Wi-Fi module, a Bluetooth module, a wired Ethernet module, or other network communication protocol chip or a near-field communication protocol chip, as well as an infrared receiver. The display device 10 can establish transmission and reception of control signals and data signals with the control device 900 or the server 30 via the communicator 902.

[0100] In some embodiments, the display device 10 includes at least one of the user interfaces 910 , and the user interface 910 may be configured to receive a control signal from the control device 900 (eg, an infrared remote controller, etc.).

[0101] In some embodiments, the display device 10 includes a detector 903 configured to collect signals from the external environment or external interactions. For example, the detector 903 may include a light receiver configured as a sensor to collect ambient light intensity; or the detector 903 may include an image collector, such as a camera, configured to collect external environmental scenes, user attributes, or user interaction gestures; or the detector 903 may include a sound collector, such as a microphone, configured to receive external sounds.

[0102] In some embodiments, the display device 10 includes an external device interface 904. The external device interface 904 may include, but is not limited to, any one or more of the following: a high-definition multimedia interface (HDMI), an analog or digital high-definition component input interface (component), a composite video input interface (CVBS), a USB input interface (USB), an RGB port, etc. It may also be a composite input / output interface formed by multiple of the above interfaces.

[0103] In some embodiments, the controller 905 and the tuner / demodulator 901 may be located in different separate devices, that is, the tuner / demodulator 901 may also be located in an external device of the main device where the controller 905 is located, such as an external set-top box.

[0104] The controller 905 controls the operation of the display device and responds to user operations through various software control programs stored in the memory. The controller 905 controls the overall operation of the display device 10. For example, in response to receiving a user command configured to select a UI object to be displayed on the display 906, the controller 905 can perform operations related to the object selected by the user command.

[0105] In some embodiments, the controller includes a central processing unit (CPU), a video processor, an audio processor, a graphics processing unit (GPU), RAM Random Access Memory (RAM), ROM (Read-Only Memory, ROM), and at least one of a first interface to an nth interface configured as input / output, a communication bus (Bus), etc.

[0106] The user may input a user command through a graphical user interface (GUI) displayed on the display 906, and the user input interface receives the user input command through the graphical user interface (GUI). Alternatively, the user may input a user command through a specific voice or gesture, and the user input interface may recognize the voice or gesture through a sensor to receive the user input command.

[0107] A user interface is the medium for interaction and information exchange between an application or operating system and the user. It converts information between its internal form and a user-friendly format. A common user interface is the graphical user interface (GUI), which refers to a graphical user interface related to computer operations. It can be an icon, window, control, or other interface element displayed on an electronic device's display. Controls can include visual interface elements such as icons, buttons, menus, tabs, text boxes, dialog boxes, status bars, navigation bars, and widgets.

[0108] Some embodiments of the present application provide a display device 10, which may be a liquid crystal display device. The display device 10 has a top side, a bottom side, a left side, a right side, and a front side and a back side. The left and right sides of the display device 10 refer to the left and right sides of the user when the user is facing the display surface of the display device. Accordingly, the side of the display device 10 facing the user is the front side, the side of the display device 10 facing away from the user is the back side, the top side of the display device 10 is the top side, and the bottom side of the display device 10 is the bottom side.

[0109] Reference Figure 3 , a display device 10 in some embodiments of the present application includes a display panel 100;

[0110] In some embodiments, the display device 10 includes a backlight assembly 200;

[0111] In some embodiments, the display device 10 includes an actuator 400;

[0112] In some embodiments, the display device 10 includes a back plate 500 .

[0113] The display panel 100 is configured to display text, images, and other image information, and can also vibrate and produce sound under the stimulation of the actuator 400. Generally, the display panel 100 includes a display area and a circuit board located on one side of the display area. The circuit board drives the entire display panel 100 to display text, images, and other information.

[0114] The display device 10 of some embodiments of the present application also includes a frame, which can be arranged around the periphery of the display panel 100. The shape of the frame matches the shape of the display panel 100. For example, the display panel 100 is square and the frame can be a square frame structure. On the one hand, the frame can support or assist in supporting the display panel 100. On the other hand, the outer side of the frame can serve as a decorative strip.

[0115] The backlight assembly 200 provides backlight for the display panel 100, which can modulate the backlight as needed to display different images. The actuator 400 is located on the side of the backlight assembly 200 facing away from the display panel 100. The actuator 400 provides the vibration force that generates sound in the display panel 100. The backplate 500 is located on the side of the backlight assembly 200 facing away from the display panel 100, that is, on the rear side of the backlight assembly 200. It is configured to support the backlight assembly 200 and the display panel 100. The backplate 500 can be made of materials such as aluminum alloy and steel to provide effective support.

[0116] The backlight assembly 200 of some embodiments of the present application is located on one side of the display panel 100 , and the backlight assembly 200 includes a light board;

[0117] In some embodiments, the light board includes a board body 230;

[0118] In some embodiments, the light board includes a light source 240 disposed on the board body 230, and the light source 240 is located on the side of the board body 230 facing the display panel 100. The board body 230 can be an aluminum plate, a printed circuit board (PCB), etc. The light source 240 can be a light-emitting diode (LED), a sub-millimeter light-emitting diode (Mini-Light Emitting Diode, Mini LED) or a micron-level light-emitting diode (Micro-Light Emitting Diode, Micro LED). The light source 240 can be multiple and spaced apart on the board body 230. The light source 240 can be in the form of a lamp bead or a light bar, etc., and the light source 240 can be fixed to the board body 230 by snapping, welding, screwing, bonding, etc.

[0119] Sub-millimeter light emitting diodes (such as Mini-LEDs) and other types of light sources have relatively compact sizes, so the cavity between the light board and the liquid crystal display panel has a smaller gap, thereby reducing the thickness of the cavity and improving the vibration transmission effect of the cavity. Therefore, in this embodiment, the light source of the backlight module is described as a sub-millimeter light emitting diode (Mini-LED).

[0120] For example, the cavity gap can be 0.3 mm to 10 mm, with the maximum gap being 10 mm. Alternatively, the cavity gap can be 0.3 mm or 1 mm. For example, when the cavity gap is 1 mm, the cavity thickness is relatively small, which can improve the transmission efficiency of the vibration force output by the actuator. Alternatively, when the cavity gap is 0.3 mm, the actuator 400 is closer to the display panel 100, resulting in stronger vibration and better sound effects. When the cavity gap is 10 mm, the cavity thickness is relatively large, which can prevent collision between the display panel 100 and the light source 240 at a certain position during vibration. Specifically, the gap of the cavity can be any one of 0.3mm-0.5mm, 0.5mm-0.8mm, 0.8mm-1.5mm, 1.5mm-2mm, 2mm-3mm, 3mm-5mm, 5mm-8mm, 8mm-10mm, for example, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1.0mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm, 8mm, 8.5mm, 9mm, 9.5mm, 10mm, etc. It should be noted that the numerical values and numerical ranges involved in some embodiments of the present application are approximate values and may have a certain range of errors due to the influence of the manufacturing process. Those skilled in the art may consider such errors to be negligible.

[0121] In some embodiments, considering factors such as the size of the display device 10 and the manufacturing process of the light board, the backlight assembly 200 includes multiple light boards, and the multiple light boards are arranged in an array. In some embodiments of the present application, the multiple light boards are divided into a first light board 210 and a second light board 220. Therefore, the backlight assembly 200 in some embodiments of the present application includes a vibration area 200a and a vibration suppression area 200b (i.e., the area outside the vibration area 200a) in its own plane direction. For details, please refer to the subsequent Figure 33 The vibration region 200a may be located in the middle of the backlight assembly 200, and the vibration suppression region 200b surrounds the vibration region 200a. The first lamp board 210 is disposed in the vibration region 200a, and the second lamp board 220 is disposed in the vibration suppression region 200b outside the vibration region 200a.

[0122] Among them, the first lamp board 210 is connected to the vibration output end of the exciter 400, so that the first lamp board 210 can vibrate under the excitation of the exciter 400; the second lamp board 220 has no connection relationship with the exciter 400, and the second lamp board 220 is connected to the back panel 500, and the back panel 500 is used to support the second lamp board 220.

[0123] Combine Figure 4As shown in Figure a, in the initial state, that is, when the exciter 400 is in a non-vibrating state, the first lamp board 210 and the second lamp board 220 are arranged side by side on the same plane to stably and reliably provide backlight for the display panel 100, so that the image brightness of the display panel 100 is uniform.

[0124] Combine Figure 4 In Figure b, in the vibrating state (i.e., when the actuator 400 is vibrating), the actuator 400 drives the first lamp panel 210 to vibrate, creating a gap ΔL between the first lamp panel 210 and the second lamp panel 220 along the vibration direction (direction of the arrow in the figure). This configuration reduces the mass required to be driven by the actuator 400, helping to lower vibration energy loss and improve vibration efficiency. The fact that only some lamp panels produce sound also improves the accuracy and sensitivity of the sound location.

[0125] In addition, the first lamp board 210 and the second lamp board 220 have a gap △L along the vibration direction (the direction of the arrow in the drawing), so that the vibrating first lamp board 210 and its surrounding structure are open designs, reducing the air reaction force of the first lamp board 210, reducing the pushing resistance, and helping to further improve the vibration transmission efficiency.

[0126] Due to the presence of a gap ΔL between the first lamp board 210 and the second lamp board 220, the gap between the backlight assembly 200 and the display panel 100 is not sealed, and the effect of transmitting vibrations through the air viscosity in this gap is weak. To ensure that the vibration force is transmitted to the display panel 100, the display device 10 in some embodiments of the present application is provided with a support member 300. The support member 300 can be interference-fitted between the first lamp board 210 and the display panel 100. The support member 300 can be made of a high-rebound material or a combination of materials with rebound properties, such as silicone.

[0127] In this way, the vibration transmission between the exciter 400, the first lamp board 210 and the display panel 100 is directly driven, which is conducive to ensuring the efficiency of vibration transmission; and the support member 300 is conducive to ensuring that the distance between the display panel 100 and the first lamp board 210 is maintained within a preset range, avoiding the light source 240 and the display panel 100 touching each other at a certain position and generating collision noise.

[0128] It should be noted that, in some embodiments of the present application, the first light board 210 and the second light board 220 have the same structure, but are connected in different ways, which facilitates processing and assembly and helps reduce costs.

[0129] OLED displays, due to their inherent flexibility, can elastically deform and produce sound when stimulated by an actuator. Conventional LCD devices, on the other hand, have support components that support the LCD screen, but because the LCD screen is fixed, they do not vibrate or produce sound, and the support components simply serve as rigid support. However, in some embodiments of the present application, the support member 300 not only supports the display panel 100 but also transmits vibrations from the backlight assembly 200 to the display panel 100, thus buffering sound waves from reaching the display panel 100.

[0130] In some embodiments of the present application, the exciter 400 and the first lamp board 210 form a vibrating body. The exciter 400 is the excitation portion of the vibrating body, configured to provide driving force; the first lamp board 210 is the vibration transmission portion of the vibrating body, configured to transmit the vibration force of the exciter 400 to the display panel 100 with low loss. The first lamp board 210 is lightweight and has a high Young's modulus. It can also reduce mid- and high-frequency split vibrations, thereby improving vibration transmission efficiency and reducing vibration transmission losses.

[0131] Combine Figure 5 In some embodiments of the present application, the second light board 220 is fixedly connected to the back panel 500, and the back panel 500 is used to support and strengthen the second light board 220. In some embodiments, the second light board 220 is rigidly connected to the back panel 500. For example, the second light board 220 is rigidly connected to the back panel 500 through a second connecting member 221. This can not only ensure the stability and reliability of the connection between the second light board 220 and the back panel 500, but also enable the second light board 220 and the back panel 500 to form a rigid surface structure together. The rigid surface structure does not participate in vibration and sound generation, and exists as a basic surface to reinforce the display panel. Exemplarily, the second light board 220 is fixedly connected to the back panel 500 by a mechanical structure. For example, the second light board 220 is fixedly connected to the back panel 500 by screws; exemplarily, the second light board 220 is connected to the back panel 500 by hard double-sided tape or glue.

[0132] When multiple second lamp boards 220 are provided, the multiple second lamp boards 220 are respectively connected to the back panel 500 through the second connecting members 221, which is conducive to ensuring the flatness of the multiple second lamp boards 220 and the convenience of assembly.

[0133] In some other embodiments, the second connecting member 221 may also be an adhesive member such as double-sided tape or foam, so that the second light board 220 is fixedly connected to the back panel 500 and the back panel 500 is used to support the second light board 220.

[0134] It should also be noted that since the first lamp board 210 and the second lamp board 220 are non-sealed structures, it is not only beneficial to the air reaction force of the first lamp board 210, which reduces the pushing resistance and helps to further improve the vibration transmission efficiency; but also, the installation of the first lamp board 210 does not require the use of the second connecting member 221, which helps to reduce costs.

[0135] Although the second lamp board 220 does not participate in the vibration and sound generation, the gap between the display panel 100 and the second lamp board 220 fluctuates when the display panel 100 vibrates and generates sound. To prevent the display panel 100 and the light source of the second lamp board 220 from colliding and causing abnormal noise and wear, some embodiments of the present application may further include a support member 300 interferingly disposed between the second lamp board 220 and the display panel 100.

[0136] In some embodiments of the present application, the first light board 210 and the backboard 500 may not be connected, such as Figure 3 Alternatively, the first light board 210 is connected to the back panel 500, as shown; Figure 5 and Figure 6 shown.

[0137] Specific, combined Figure 3 The first light panel 210 is spaced apart from the back panel 500, and the exciter 400 is configured to support the first light panel 210. This arrangement can reduce the number of assembly steps for the first light panel 210. In some embodiments, exciters 400, such as high-resonance frequency exciters, are positioned at the four corners of the first light panel 210. These four exciters provide support and vibration excitation, ensuring uniform vibration across the first light panel 210 without deviation. In some embodiments, a low-resonance frequency exciter can be positioned at the center of the first light panel 210. Its vibration system has less elasticity and primarily serves to excite the first light panel 210.

[0138] Combine Figure 5 The first light panel 210 and the back panel 500 are connected via a connecting component 211, creating an elastic connection between the first light panel 210 and the back panel 500. The connecting component 211 can be made of an elastic material, such as an elastic double-sided tape. This arrangement facilitates the installation of the first light panel 210, ensuring that it is initially aligned with the second light panel 220, and also ensures the structural stability and reliability of the first light panel 210. The elastic connection between the first light panel 210 and the back panel 500 also prevents vibration reaction forces from being transmitted to the back panel 500.

[0139] Exemplarily, the two ends of the connecting member 211 are respectively bonded to the first light board 210 and the backboard 500. For example, the connecting member 211 is an elastic double-sided adhesive tape. This arrangement makes the connection between the first light board 210 and the backboard 500 simple, reliable, and elastic.

[0140] For example, combined Figure 6 The connecting component 211 includes two connecting bodies 2111 and an elastic portion 2112. The two connecting bodies 2111 are respectively fixed to the back panel 500 and the first light board 210. Exemplarily, the connecting bodies 2111 are columns, such as rivet columns; mounting holes are respectively provided on the back panel 500 and the first light board 210, and the connecting bodies 2111 are riveted into the mounting holes; Exemplarily, threaded holes are provided on the back panel 500, and the connecting bodies 2111 are threadedly connected to the threaded holes; Exemplarily, the connecting bodies 2111 are bonded to the first light board 210. The connection method of the two connecting bodies 2111 can be the same or different, and some embodiments of the present application are not limited to this. There is a gap between the two connecting bodies 2111. It should be noted that when the gap between the first light board 210 and the back panel 500 is the smallest, there is still a gap between the two connecting bodies 2111 to avoid collision between the two connecting bodies 2111 and generating abnormal noise.

[0141] The elastic portion 2112 is connected between the two connecting bodies 2111. The elastic portion 2112 is an elastic component, such as a spring; the ends of the spring can be fixed to the two connecting bodies 2111, or the ends of the spring can be sleeved on the outside of the two connecting bodies 2111. In this example, the connecting component 211, through the two connecting bodies 2111 and the elastic portion 2112, achieves an elastic connection between the first light panel 210 and the back panel 500, providing a stable and reliable connection.

[0142] In some possible embodiments, reference Figure 7Since the second light board 220 is fixed, for example, the second light board 220 is fixed to the back panel 500, the first light board 210 and the second light board 220 can also be connected via an elastic connector 216, such as an elastic double-sided tape, an elastic pad, an elastic column, etc. For example, the periphery of the first light board 210 is attached to the back panel 500 via an elastic connector 211, such as an elastic double-sided tape. Furthermore, it is necessary to ensure that the surface of the first light board 210 facing the display panel 100 after attachment is flush with the surface of the second light board 220 facing the display panel 100. The second lamp board 220 is elastically connected to the first lamp board 210 through an elastic connector 216. In this way, the elastic connector 216 can limit the moving distance of the first lamp board 210 to avoid excessive vibration distance affecting the uniformity of the image brightness of the display panel 100. In addition, the elastic connector 216 can also be used to reduce the accuracy of the relative position between the first lamp board 210 and the second lamp board 220. That is to say, when the elastic connector 216 is not set between the first lamp board 210 and the second lamp board 220, the position between the first lamp board 210 and the second lamp board 220 requires higher accuracy. If the accuracy is low, there may be hard contact between the first lamp board 210 and the second lamp board 220 and mutual interference or the distance between the two may be too large. Therefore, in some embodiments of the present application, the elastic connector 216 can reduce the position accuracy between the first lamp board 210 and the second lamp board 220, and the image brightness of the display panel 100 can be made uniform.

[0143] Combine Figure 8 and Figure 9 In some embodiments of the present application, the backlight assembly 200 further includes a sound-generating plate 212. The thickness of the sound-generating plate 212 can be 1 mm to 4 mm, for example, 1 mm to 2 mm, 2 mm to 3 mm, or 3 mm to 4 mm; the thickness can be 1 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm, 1.6 mm, 1.7 mm, 1.8 mm, 1.9 mm, 2 mm, 2.2 mm, 2.5 mm, 2.7 mm, 3 mm, 3.3 mm, 3.5 mm, 3.8 mm, 3.9 mm, etc. The sound-generating plate 212 is fixed to the side of the first lamp board 210 facing away from the display panel 100. For example, the sound-generating plate 212 is bonded to the first lamp board 210 using an adhesive such as double-sided tape. In this case, the vibration output end of the actuator 400 is connected to the sound-generating plate 212.

[0144] In some embodiments, the light board 210 can also dissipate heat through the sound board 212. For example, the sound board 212 includes a metal layer, which transfers the heat of the light board 210 through contact and dissipates the heat, thereby playing a role in dissipating heat for the light board 210.

[0145] The sounding panel 212 may include a sandwich panel or a carbon fiber panel. The sandwich panel may be any of honeycomb sandwich panels, foam sandwich panels, wood sandwich panels, and acrylic panels, which are low-cost and readily available. Honeycomb sandwich panels may include aluminum honeycomb sandwich panels, aramid honeycomb sandwich panels, etc., foam sandwich panels may include polyvinyl chloride (PVC) foam sandwich panels, polymethacrylimide (PMI) foam sandwich panels, etc., and wood sandwich panels may include balsa wood or other balsa wood.

[0146] Those skilled in the art are well aware that sound quality can be measured in terms of volume, frequency response range, timbre, and other aspects. Specifically, the sound produced by the sandwich panel has a higher volume and a wider, less undulating audio response than the sound produced by the aluminum panel. In other words, by providing the sound-generating panel 212, the sound produced by the display device can have better sound quality.

[0147] In some embodiments, the sounding panel 212 comprises a honeycomb panel;

[0148] In some embodiments, the sounding plate 212 includes an aluminum substrate;

[0149] While ensuring the structural strength of the sounding plate 212 , the mass of the sounding plate 212 is reduced, thereby reducing the mass driven by the exciter 400 and reducing the loss of vibration energy.

[0150] In some embodiments, the aluminum substrate on the side of the sounding board 212 facing the exciter 400 can be replaced with a fiberglass covering to prevent the heat of the light board from being transferred to the exciter 400 through the aluminum substrate, thereby preventing the operating temperature of the exciter 400 from increasing.

[0151] The damping of the sounding board 212 is greater than the damping of the board body of the first lamp board 210 . Compared with the board body in the related art, the density and mass of the sounding board 212 are smaller.

[0152] like Figure 8 As shown, when the exciter 400 drives the first lamp board 210 and the sounding board 212 to vibrate, the sounding board 212 and the second lamp board 220 have a gap ΔL along the vibration direction.

[0153] The sounding board 212 may be the same size as the first light board 210; or, the size of the sounding board 212 may be smaller than the size of the first light board 210 to reduce the mass driven by the exciter 400. Figure 9 As shown, in order to reduce the mass of the sounding plate 212, a weight-reducing structure 2121 may be provided on the sounding plate 212. The weight-reducing structure 2121 may be a hole or a groove, etc. Some embodiments of the present application do not limit the number and arrangement of the holes or grooves.

[0154] In some embodiments, the weight-reducing structure 2121 can be a long strip of opening, so that the sounding plate 212 is divided into at least two sub-plates, and the at least two sub-plates are spaced apart from each other. The exciter 400 is connected to the first light board 210 through at least two sub-plates. In this way, the weight of the sounding plate 212 can be reduced in some embodiments, thereby reducing the mass that the exciter 400 needs to push, reducing energy loss, and improving vibration transmission efficiency.

[0155] Some embodiments of the present application can reinforce the structure of the first lamp panel 210 by providing a sounding plate 212; the sounding plate 212 has a large damping and a small mass and density, which can increase the equivalent damping of the first lamp panel 210, reduce the equivalent density of the first lamp panel 210, increase the bending modulus of the first lamp panel 210, increase the number of modal resonance frequencies, improve the frequency response transmitted to the display panel 100, expand the frequency range of the sound emitted by the display panel 100, and avoid obvious peaks and valleys and distortion in the audio response of the display panel 100 that affect the listening experience.

[0156] Combine Figure 5 In some embodiments, the back panel 500 includes a back panel body 501 and a first side panel 502. The back panel body 501 is configured to support the light panel and the display panel 100. An opening 503 is provided on the back panel body 501, and the exciter 400 is connected to the first light panel 210 through the opening 503. With this arrangement, the back panel 500 does not need to be provided with a bulge, and only needs to be provided with the opening 503, which is conducive to simplifying the structure of the back panel 500, facilitating processing, and reducing costs. In addition, the back panel 500 is not provided at the position corresponding to the exciter 400, which is conducive to reducing the thickness of the display device. The first side panel 502 extends along the edge of the back panel body 501 and protrudes from the back panel body 501 toward one side of the display panel 100, that is, the first side panel 502 protrudes from the front side of the back panel body 501. In this way, the first side panel 502 is arranged around the outer side of the light panel and the display panel 100 in the circumferential direction.

[0157] Combine Figure 7 In some other embodiments, a convex bump 504 is provided on the back panel body 501 at a position corresponding to the first lamp panel 210 , and the convex bump 504 protrudes away from the first lamp panel 210 to accommodate the sound panel 212 .

[0158] Combine Figure 9 , the first light board 210 of the vibration area can be provided with one. Figure 10 As shown, a plurality of first lamp panels 210 are provided in the vibration area, and the plurality of first lamp panels 210 are spliced together through a first connecting member 213 ; the vibration output end of the exciter 400 is connected to the first connecting member 213 .

[0159] For example, there may be two, three or more first light panels 210. Figure 10As shown, there are two first lamp panels 210 arranged side by side, so that the exciter 400 can simultaneously drive the two first lamp panels 210 to vibrate by connecting with the first connecting member 213; for example Figure 11 As shown, there are three first light panels 210 arranged side by side, and two first connecting members 213 are respectively arranged at two splicing positions defined by the three first light panels 210. The exciter 400 can be connected to the two first connecting members 213 at the same time to achieve simultaneous driving of the three first light panels 210 to vibrate.

[0160] In some embodiments, when multiple first lamp boards 210 are provided in the vibration area, the board area of a single first lamp board 210 can be smaller than the board area of the second lamp board 220. This helps to reduce the mass that the exciter 400 needs to push, reduce energy loss, and improve vibration transmission efficiency.

[0161] The area of the first connecting member 213 can be the same as the total area of the plurality of first light panels 210, so that the first light panels 210 can be stably and reliably supported. Figure 11 As shown, the first connecting member 213 can be set at the joint of two adjacent first lamp panels 210. This arrangement can reduce the mass driven by the exciter 400 while splicing multiple first lamp panels 210, thereby reducing the loss of vibration.

[0162] In some embodiments, the first connecting member 213 may be a rigid member. For example, the first connecting member 213 is a sound-generating plate, which can reinforce the first light panels 210 while enabling the splicing of multiple first light panels 210 .

[0163] In other embodiments, the first connecting member 213 may be an adhesive member, such as double-sided tape, foam, etc., so that the splicing of multiple first light panels 210 is simple and convenient.

[0164] Some embodiments of the present application provide multiple first lamp boards 210 to increase the vibration area, thereby facilitating the transmission of vibrations to the entire display panel 100 and improving the uniformity of vibration transmission to the display panel 100. The multiple first lamp boards 210 are connected by first connectors 213, facilitating assembly of the multiple first lamp boards 210 and achieving coplanar arrangement with the second lamp boards 220; the exciter 400 excites the first lamp boards 210 via the first connectors 213.

[0165] Combine Figure 12 and Figure 13 The plurality of exciters 400 can increase the vibration force. In particular, when the first light board 210 is not connected to the backboard 500, the plurality of exciters 400 can support the first light board 210 more stably.

[0166] like Figure 12As shown, in some embodiments, an exciter 400 is provided at the center of the first light board 210 , and a plurality of exciters 400 are arranged at intervals around the circumference of the exciter 400 .

[0167] like Figure 13 As shown, a plurality of actuators 400 are disposed at the edge of the first light board 210 , and at least one actuator 400 is disposed at the center of the first light board 210 .

[0168] Among them, the exciter 400 located at the center of the first light board 210 can be designed to have a low resonance frequency, and its vibration system has less elasticity; multiple exciters 400 arranged circumferentially can be designed to have a high resonance frequency to improve the acoustic effect of the display device.

[0169] Some embodiments of the present application provide a plurality of exciters 400, which can not only stably and reliably support the first lamp board 210, but also enable the first lamp board 210 to vibrate along the front-to-back direction of the display device without deflection.

[0170] The actuator 400 in some embodiments of the present application is an electric actuator, such as an electromagnetic actuator, a magnetostrictive actuator, a piezoelectric actuator, etc. Figure 14 , the actuator 400 of some embodiments of the present application includes: an actuator 410;

[0171] In some embodiments, the actuator 400 includes: a spider 420;

[0172] In some embodiments, the actuator 400 includes: an actuator body 401;

[0173] The vibration output end of the actuator 410 is connected to the first lamp board 210 ; one end of the elastic wave 420 is connected to the actuator 410 , and the other end of the elastic wave 420 is connected to the exciter body 401 .

[0174] In some embodiments, a plurality of first light panels 210 are provided, and the vibration output end of the actuator 410 can be connected to the joint of the first light panels 210 .

[0175] When the exciter 400 is activated, the actuator 410 vibrates and drives the first light panel 210 to vibrate. The vibration force is transmitted to the display panel 100 via the support member 300, driving the display panel 100 to vibrate and produce sound. In this way, the display device of some embodiments of the present application can achieve front-side sound, with the sound image position approximately coinciding with the center position of the screen, achieving a unified audio and video experience and providing a better audio-visual effect for the user.

[0176] In some embodiments, the central axis of the actuator 400 is perpendicular to the first light board 210, and the vibration output direction of the actuator 400 is along its central axis and perpendicular to the surface of the display device. Figure 14 Middle vertical direction.

[0177] The vibration output end of the actuator 410 forms a third connection structure 411 to increase the connection area between the actuator 410 and the first lamp board 210 , thereby preventing the actuator 410 and the first lamp board 210 from being separated from each other.

[0178] In some embodiments, the third connection structure 411 is in a sheet shape, which can not only provide a larger connection area between the actuator 410 and the light board 210 , but also the sheet structure is conducive to reducing the weight of the exciter 400 .

[0179] In some embodiments of the present application, the central axis of the spider 420 coincides with the central axis of the actuator 400 .

[0180] In some embodiments, the wave damper 420 includes a body portion 4201 ;

[0181] In some embodiments, the wave damper 420 includes a first connecting portion 4202 and a second connecting portion 4203 disposed at both ends of a main body 4201 ;

[0182] The main body 4201 is arranged in a plane parallel to the display panel. It is annular and radially wavy, giving the damper 420 its elasticity. The inner end of the main body 4201 is bent to form a first connecting portion 4202, which connects to the actuator 410. The outer end of the main body 4201 is bent to form a second connecting portion 4203, which connects to the actuator body 401.

[0183] In some embodiments, the first connection portion 4202 is a sheet-shaped connection portion, which can increase the connection area between the first connection portion 4202 and the actuator 410, which not only ensures the stability of the connection, but also facilitates heat transfer and heat dissipation.

[0184] In some embodiments, the second connection portion 4203 is a sheet-shaped connection portion, which can increase the connection area between the second connection portion 4203 and the actuator body 401, which not only helps to improve the stability of the connection, but also facilitates heat transfer and heat dissipation.

[0185] In some embodiments of the present application, actuator 400 employs dampers 420 to transfer heat generated by the vibration of actuator 410 to actuator body 401 for dissipation. This allows heat generated by actuator 410 to be dissipated not only through air but also through dampers 420, thereby lowering the temperature of actuator 410 and minimizing the impact of local temperature on image display quality. Furthermore, the provision of first connection portion 4202 increases the connection area with actuator 410, while the provision of second connection portion 4203 increases the connection area with actuator body 401, both improving connection stability and heat dissipation.

[0186] In some embodiments of the present application, the damper 420 increases the heat conduction path of the actuator 410. The thermal conductivity of the damper 420 is approximately 3 to 4 times that of copper. The lateral thermal conductivity of the damper 420 can reach 1000 W / m·K, which is significantly more efficient than air heat dissipation. This can reduce the temperature of the actuator 410 and the local temperature of the display device screen where sound is emitted, avoid "hot" spots on the screen, reduce unevenness in screen brightness and color, and increase the maximum power and operating reliability of the actuator or speaker.

[0187] In some embodiments, the damper 420 is bonded to the actuator 410 and the actuator body 401 respectively. For example, the damper 420 is bonded to the actuator 410 and the actuator body 401 respectively by glue, and the connection method is simple and stable.

[0188] Reference Figure 14 and Figure 15 In some embodiments of the present application, the damper 420 includes a heat-conducting layer 422. This facilitates heat transfer, allowing heat generated by the actuator 410 to be transferred to the actuator body 401 for dissipation, thereby reducing the impact of heat from the actuator 410 on image display quality. The heat-conducting layer 422 has a high thermal conductivity and can be made of metal, graphite, or other materials.

[0189] Continue to refer to Figure 14 and Figure 15 In some possible implementations, the damper 420 further includes a fiber layer 421, which is stacked with a heat conducting layer 422. The fiber layer 421 includes but is not limited to mesh, glass fiber mesh, etc.

[0190] In some embodiments, a possible manufacturing method of the elastic wave 420 includes: on the one hand, using flake graphite as a raw material, performing oxidation and pulping processes to form a graphene oxide slurry; then coating it into a base film, and then performing sintering, reduction, and calendaring processes to form a graphene membrane; on the other hand, using fiber mesh cloth as a raw material, impregnating the fiber mesh cloth in resin to form a fiber membrane; finally, stacking the graphene membrane and the fiber membrane, and embossing them into a wavy shape, and after curing, forming the elastic wave 420 with high thermal conductivity.

[0191] In some embodiments of the present application, the damper 420 utilizes a fiber layer 421 as a skeleton and is formed by combining the fiber layer 421 with a heat-conducting layer 422. The damper 420 is not only elastic but also has high thermal conductivity, which facilitates the transfer of heat generated by the actuator 410 to the actuator body 401 while reducing the amount of heat generated by the actuator 410 that is transferred to the display panel.

[0192] In some embodiments of the present application, the thermal conductivity of the elastic wave 420 is several times that of general metal materials such as copper and aluminum, so that the heat of the actuator 410 can be mainly transferred to the actuator body 401 through the elastic wave 420, thereby reducing the temperature of the vibration output end of the actuator 410 and reducing the impact of local temperature on the image display quality of the display device.

[0193] In some embodiments, reference Figure 15 and Figure 16 , one of the fiber layer 421 and the heat conducting layer 422 is multiple, and the fiber layer 421 is adjacent to the heat conducting layer 422. In this way, the fiber layer 421 and the heat conducting layer 422 are alternately stacked.

[0194] In some embodiments, reference Figure 16 The fiber layer 421 is provided with two layers, and the heat conducting layer 422 is located between the two fiber layers 421 .

[0195] In other embodiments, referring to Figure 15 The heat conducting layer 422 is provided with two layers, and the fiber layer 421 is located between the two heat conducting layers 422 .

[0196] In some other embodiments, the damper 420 includes multiple fiber layers 421 and multiple heat-conducting layers 422 , and the multiple fiber layers 421 and the multiple heat-conducting layers 422 are alternately stacked.

[0197] In some embodiments of the present application, the damper 420 is provided with fiber layers 421 and heat-conducting layers 422 that are alternately stacked to improve the structural strength of the damper 420 and the thermal conductivity of the damper 420 .

[0198] Combine Figure 14 In some embodiments, the thermally conductive layer 422 contacts the actuator body 401, which improves heat transfer efficiency and, in turn, the heat dissipation efficiency of the actuator 410. When the thermally conductive layer 422 is located on at least one surface of the damper 420, that surface directly contacts the actuator body 401. When the thermally conductive layer 422 is located within the inner layer of the damper 420, for example, between two fiber layers 421, the fiber layer 421 of the damper 420 facing the actuator body 401 is provided with a notch, allowing the thermally conductive layer 422 to be arranged on the surface of the damper 420 and, in turn, to contact the actuator body 401. A notch is provided in the fiber layer 421 corresponding to the second connection portion 4203 of the damper 420, allowing the thermally conductive layer 422 to be arranged on the surface of the damper 420 and, in turn, to contact the actuator body 401.

[0199] Combine Figures 17 to 19In some possible embodiments of the present application, the thermally conductive layer 422 is a thermally conductive film 423, which is provided with a plurality of through-holes 4231. The thermally conductive film 423 is a membrane independent of the fiber layer 421, and is formed with a plurality of through-holes 4231. The through-holes 4231 provided on the thermally conductive film 423 can be circular holes, elliptical holes, polygonal holes, irregular holes, etc.; the plurality of through-holes 4231 can be arranged in a matrix on the thermally conductive film 423, such as a rectangular matrix or a circular matrix. Some embodiments of the present application do not limit the number, shape, and arrangement of the through-holes 4231.

[0200] The thickness of the thermal conductive film 423 can be 100μm to 1000μm, and the thickness of the thermal conductive film 423 is 100μm to 200μm, 200μm to 350μm, 350μm to 500μm, 500μm to 600μm, 600μm to 750μm, 750μm to 850μm, 850μm to 1000μm; for example, 200μm, 300μm, 400μm, 500μm, 600μm, 700μm, 800μm, 900μm, etc.

[0201] The fiber layer 421 and the heat-conducting film 423 may both be ring-shaped, and after being embossed and cooled and solidified, the damper 420 is formed.

[0202] In some embodiments of the present application, the damper 420 is provided with a fiber layer 421 as a skeleton, and a thermally conductive film 423 is provided with a plurality of through holes 4231 on the thermally conductive film 423 to improve the heat dissipation efficiency of the thermally conductive film 423 ; moreover, the thermally conductive film 423 can also have a certain degree of flexibility.

[0203] In some examples, reference Figure 19 The heat-conducting film 423 is provided with two layers, and the fiber layer 421 is provided between the two layers of heat-conducting film 423 .

[0204] In other examples, refer to Figure 17 and Figure 18 The fiber layer 421 is provided with two layers, and the thermal conductive film 423 is provided between the two fiber layers 421 .

[0205] In some other examples, the thermally conductive film 423 and the fiber layer 421 are respectively provided with multiple layers, and the thermally conductive film 423 and the fiber layer 421 are alternately stacked.

[0206] In some embodiments of the present application, the damper 420 is provided with multiple fiber layers 421 to improve the structural strength of the damper 420 ; and is provided with multiple thermally conductive films 423 to improve the thermal conductivity of the damper 420 .

[0207] For the damper 420 of this embodiment, the heat conductive film 423 is in contact with the actuator body 401 , which is beneficial to improving the heat transfer efficiency and further improving the heat dissipation efficiency of the actuator 410 .

[0208] Refer again Figure 14 In some embodiments of the present application, the exciter 400 further includes a pressure ring 440, which is configured to press the damper 420 against the exciter body 401. The pressure ring 440 can be metal, which helps ensure efficient heat transfer. The second connection portion 4203 of the damper 420 is pressed against the exciter body 401 by the pressure ring 440, improving the stability and tightness of the connection between the damper 420 and the exciter body 401 and facilitating heat transfer.

[0209] For example, the pressure ring 440 and the actuator body 401 as well as the pressure ring 440 and the damper 420 can be bonded together, and the connection method is simple and stable.

[0210] Continue to refer to Figure 14 Taking the exciter 400 as an electromagnetic exciter as an example, the electromagnetic exciter includes a magnetic component 450 and a voice coil, wherein the magnetic component 450 is configured to generate a magnetic field, and the voice coil vibrates along the axis direction of the voice coil in the magnetic field.

[0211] In some embodiments, the magnetic assembly 450 includes a magnetic conductive member 451;

[0212] In some embodiments, the magnetic assembly 450 includes a magnetic member 452;

[0213] A magnetic air gap N is formed between the magnetic permeable member 451 and the magnetic member 452 . The magnetic permeable member 451 is cylindrical with an opening, and the magnetic member 452 is disposed on the bottom surface of the magnetic permeable member 451 . A gap is formed between the inner wall surface of the magnetic permeable member 451 and the magnetic member 452 , forming the magnetic air gap N. The magnetic assembly 450 is configured to provide a stable magnetic field in the magnetic air gap N.

[0214] One end of the voice coil is connected to the first light board 210. A third connecting structure 411 can also be provided between the voice coil and the first light board 210 to increase the connection area between the voice coil and the first light board 210 and prevent the voice coil and the first light board 210 from being separated from each other. The other end of the voice coil is inserted into the magnetic air gap N, and the voice coil is fixed to the exciter body 401 via a spring 420. As the magnetic field changes, the voice coil is forced to move back and forth along its own axis. In other words, when the exciter 400 is an electromagnetic exciter, the voice coil constitutes the actuator 410, and the end of the actuator 410 facing away from its vibration output end is located within the magnetic air gap N.

[0215] In this way, under the influence of the magnetic field, the electromagnetic force causes the voice coil to resonate at a higher frequency, directly vibrating the first light board 210. The reaction force of the electromagnetic force causes the larger actuator 400 to resonate at a lower frequency. The actuator body 401 has no fixed support but vibrates with the vibration of the driven first light board 210. This is the biggest difference between the OLED screen actuator housing and the bracket excitation method.

[0216] The actuator body 401 of some embodiments of the present application includes a magnetic assembly 450;

[0217] In some embodiments, the actuator body 401 includes a housing 430;

[0218] Housing 430 is configured to support magnetic assembly 450 and to provide resilient mounting for actuator 400. Magnetic conductive member 451 is fixedly connected to housing 430. Specifically, in some embodiments of the present application, magnetic conductive member 451 includes a U-shaped body and a connecting portion. The two ends of the U-shaped body's opening are bent away from each other to form the connecting portion, which is connected to housing 430.

[0219] The second connection portion 4203 of the damper 420 is pressed against the magnetic member 451 by the pressure ring 440. For example, the second connection portion 4203 and the magnetic member 451, the pressure ring 440 and the magnetic member 451, and the pressure ring 440 and the housing 430 are bonded, providing a simple and stable connection.

[0220] The exciter 400 of some embodiments of the present application reduces the width of the exciter 400 by connecting the elastic wave 420 to the magnetic component 451. Since the axial dimension of the actuator 410 is relatively large, the stacking and pressing of the pressure ring 440, the magnetic component 451 and the shell 430 will not affect the overall thickness of the exciter 400. The connection method of the elastic wave 420 set in this way can not only ensure the stability of the connection, but also help to make the exciter 400 compact.

[0221] Continue to refer to Figure 14 Ventilation holes are provided at the portion of the magnetic member 451 that contacts the damper 420 to improve the heat dissipation efficiency of the magnetic member 451 and the amount of heat dissipated by the actuator 410 through the damper 420. The ventilation holes may be circular holes, and some embodiments of the present application do not limit the shape, number, or arrangement of the ventilation holes.

[0222] In some possible embodiments, the portion of the housing 430 that contacts the magnetic conductive member 451 is provided with ventilation holes. The ventilation holes can be opposite the ventilation holes to further improve heat dissipation efficiency. The ventilation holes can be circular holes. Some embodiments of the present application do not limit the shape, number, or arrangement of the ventilation holes.

[0223] Combine Figure 20In some embodiments, the housing 430 of the actuator 400 is connected to the back plate 500 via a fixing pin 480 , and the fixing pin 480 may be perpendicular to the back plate 500 . An elastic pad 460 is provided on the housing 430 , and the housing 430 is connected to the back plate 500 via the elastic pad 460 .

[0224] Among them, the material of the elastic pad 460 can be silicone, rubber, etc., the elastic pad 460 can be sleeved on the outside of the fixing pin 480, and a matching hole is set on the outer shell 430. The outer wall surface of the elastic pad 460 is provided with a clamping groove that is clamped with the outer shell 430. In this way, there are partial elastic pads 460 on both sides of the matching hole, that is, the cross-sectional shape of the elastic pad 460 can be approximately I-shaped, so as to avoid interference between the outer shell 430 and the fixing pin 480 or the back plate 500 during the vibration of the exciter 400. This embodiment does not limit the structure, material, etc. of the elastic pad 460.

[0225] The elastic force of the elastic pad 460 is parallel to the thickness of the display device 10, allowing the housing 430 and the back panel 500 to have a variable relative position. In other words, during vibration of the actuator 400, the housing 430 can reciprocate relative to the back panel 500. In this case, the actuator 400 also vibrates the first light panel 210 in a manner similar to inertial drive, thus preventing the housing 430 and the back panel 500 from being fixed relative to each other and affecting the frequency response of the display device 10.

[0226] Reference Figure 21 In other embodiments, a damping block 470 is provided at the end of the shell 430. The damping block 470 can be double-sided tape, foam, etc. The damping block 470 can be connected to the side of the first lamp board 210 facing the back panel 500. In this way, there is a large relative movement range between the shell 430 and the first lamp board 210, which is conducive to realizing the exciter 400 driving the display panel 100 to vibrate in an inertial driving manner.

[0227] In this way, when the exciter 400 is working, the actuator 410 can generate a higher frequency vibration and drive the first lamp board 210 to vibrate. Through the reaction force of the actuator 410, the shell 430 can drive the first lamp board 210 to vibrate with a lower frequency vibration, that is, the shell 430 vibrates with the vibration of the first lamp board 210, and the exciter 400 constitutes an inertial driving mode to drive the first lamp board 210 to vibrate.

[0228] Combine Figure 22 , in some embodiments, the display panel 100 includes a display film layer 120;

[0229] In some embodiments, the display panel 100 includes a diffusion film 113 ;

[0230] The display film layer 120 is located on the side of the diffuser film 113 facing away from the backlight assembly 200. The display film layer 120 may be a liquid crystal film layer. The diffuser film 113 ensures uniform light distribution. A first sealing structure 610 is provided at the edge between the diffuser film 113 and the display film layer 120. The first sealing structure 610 may be annular, forming a cavity M between the diffuser film 113 and the display film layer 120.

[0231] The support member 300 is disposed between the diffuser film 113 and the first light board 210. In some embodiments, the support member 300 is positioned with an interference fit between the diffuser film 113 and the first light board 210. Because the diffuser film 113 evens out the light, even if the support member 300 is positioned on the light-emitting side of the first light board 210, it does not cast a shadow on the display panel 100, thereby preventing uneven brightness on the display panel 100. Thus, restrictions are imposed on the shape and size of the support member 300, as well as the contact area between the support member 300 and the display panel 100.

[0232] The first sealing structure 610 can be optical glue. The setting of the first sealing structure 610 makes the air in the cavity M have viscosity. The cavity M is closed, that is, the air in the cavity M and the external air do not circulate with each other. The air in the cavity M can be equivalent to a damping spring, which is configured to transmit vibrations between the diffusion membrane 113 and the display film layer 120. In this way, the exciter 400 vibrates the first lamp board 210, and the first lamp board 210 transmits the vibration energy to the diffusion membrane 113 through the support member 300. The gas in the cavity M is compressed, and the gas can transmit the vibration energy to the display film layer 120, so as to drive the display film layer 120 to vibrate and make sounds. In this way, the display film layer 120 can be used for display and can also replace the speaker to make sounds.

[0233] The display device of some embodiments of the present application uses a combination of direct drive and air indirect drive to make the display panel 100 vibrate and produce sound. Among them, the vibration transmission between the exciter 400, the first light board 210 and the diffusion film 113 is direct drive, which can ensure the efficiency of vibration transmission; the vibration transmission between the diffusion film 113 and the display film layer 120 is viscous air gap transmission, which is indirect drive; the viscous air gap transmission vibration can make the display panel 100 evenly stressed across the entire plane, and the actual vibration area of the display panel 100 is larger than the solution with only direct drive in the related art. In this way, the display device of this embodiment can enable the display panel to achieve low-frequency sound performance with a smaller amplitude (for example, 0.3mm), solving the shortcoming of the display panel in the related art that it cannot be driven with a large amplitude.

[0234] Combine Figure 20 and Figure 21The display panel 100 includes a display film layer 120 and an optical film assembly 110. The display film layer 120 can also be other film layers with display functions. The display film layer 120 may include a color filter (CF) substrate, a thin film transistor (TFT) substrate (also known as an array substrate), and a liquid crystal (LC) layer. The LC layer is located between the color filter substrate and the array substrate. The TFT substrate is provided with data lines and scan lines. The power supply of the data lines and scan lines controls the direction of the liquid crystal molecules, thereby transmitting the backlight through the color filter substrate and generating a preset color image.

[0235] Depending on the type of light emitted by the light panel, the optical film assembly 110 can be of different types. For example, when the light panel emits white light, the optical film assembly 110 can include a reflective sheet, a light guide plate, a brightness enhancement film, etc. The reflective sheet is attached to the surface of the light panel where the light source is located.

[0236] When the light board emits blue light, the optical film assembly 110 may include a diffusion film 113, a fluorescent film 112 and a brightness enhancement film 111. The diffusion film 113 is arranged on the front side of the light board and is configured to mix the light of multiple light boards evenly, that is, to convert the lighting board into a surface light board. The fluorescent film 112 converts the light emitted by the light board into white light. In this way, the color of the light emitted by the light board is not limited, and the light board can emit blue light or purple light. The brightness enhancement film 111 is configured to increase the brightness of the light. It can be understood that when the light board emits white light, the optical film assembly 110 may also include a diffusion film 113, a fluorescent film 112 and a brightness enhancement film 111. This embodiment is described by taking the optical film assembly 110 including the diffusion film 113, the fluorescent film 112 and the brightness enhancement film 111 as an example.

[0237] In some embodiments, the display film layer 120 and the optical film assembly 110 can be bonded together, for example, using photosensitive adhesive (UV adhesive), foam, double-sided tape, etc. In other words, the display panel 100 and the optical film assembly 110 can be bonded together to form a single unit. In this case, the vibration force transmitted from the actuator 400 to the first light board 210 is transmitted to the display film layer 120 through the optical film assembly 110.

[0238] In other embodiments, a gas gap is formed between the display film layer 120 and the brightness enhancement film 111; and / or a gas gap is formed between the brightness enhancement film 111 and the fluorescent film 112; and / or a gas gap is formed between the fluorescent film 112 and the diffusion film 113. The gas gaps are closed, forming the cavity M of the above-mentioned embodiments. In other words, the cavity M can be formed between the display film layer 120 and the brightness enhancement film 111, between the brightness enhancement film 111 and the fluorescent film 112, or between the fluorescent film 112 and the diffusion film 113; or, the cavity M includes at least two of the three gas gaps described above.

[0239] Combine Figures 20 to 22 The display device 10 includes a second adhesive sealing structure 620, which is a double-sided tape or foam. The second sealing structure 620 extends along the edge of the backlight assembly. The optical film assembly 110 and the backlight assembly are bonded and fixed via the second sealing structure 620. That is, the diffusion film 113 and the backlight assembly 200 are bonded and fixed via the second sealing structure 620. In this way, the backlight assembly can also support the display panel 100.

[0240] Reference Figure 23 A support member 300 is provided between the first light board 210 and the display panel 100 to transmit vibration force. The cross-section of the support member 300 (the cross-section perpendicular to the display device) can be rectangular or cylindrical; the cross-section of the support member 300 can also be conical, trapezoidal, dumbbell-shaped, or other shapes.

[0241] In some embodiments of the present application, the support member 300 is interference-fitted between the display panel 100 and the first light board 210, that is, the combination of the two ends of the support member 300 with the display panel 100 and the first light board 210 can adopt a dimensional interference fit design, that is, the dimension of the support member 300 along the thickness direction of the display device is larger than the design dimension of the interval between the display panel 100 and the first light board 210.

[0242] like Figure 23 As shown in Figure a, the support member 300 is in a free contact state; in Figure b, the exciter 400 is not vibrating and the support member 300 is in a static placement state, and the support member 300 is in an interference compression state due to the extrusion of the display panel 100 and the first lamp board 210; in Figure c, when the vibration output end of the exciter 400 is pushed forward, the support member 300 is in a further overpressure state. The size of the support member 300 can be, for example, the sum of the distance between the display panel 100 and the first lamp board 210 and half the vibration amplitude, ensuring that in the state shown in Figure a, the support member 300 is in contact with the display panel 100 and the first lamp board 210, thereby improving the transmission efficiency of vibration from the first lamp board 210 to the display panel 100.

[0243] The support member 300 may be made of a silicone material that is easy to guide light. The silicone material has a relatively low hardness and has a certain elastic supporting effect. Exemplarily, the support member 300 is a silicone member or a rubber member.

[0244] In addition, it should be noted that, considering that the internal temperature of the display device 10 changes when it is in operation, materials such as silicone and rubber will age with temperature changes, resulting in a reduction in the cushioning effect of the support member 300, a decrease in support strength, and a decrease in vibration transmission efficiency. Therefore, in some embodiments, the support member 300 may also be a composite structure to ensure reliable vibration transmission performance. For example, the support member 300 may be made of a material whose deformation is not sensitive to temperature, for example, the support member 300 may be made of a hard material with high strength such as metal or plastic.

[0245] In some embodiments, the support member 300 can be a conical structure. For example, the support member 300 can be a conical structure or a quadrangular prism conical structure, and the cross-sectional size of the support member 300 can gradually decrease from one end of the board body 230 to one end of the display panel 100. Since the light beam emitted by the light source 240 has a certain divergence, the conical structure of the support member 300 helps to avoid the light beam of the light source 240 and avoid affecting the normal light output of the light board 210.

[0246] In some embodiments, the outer wall surface of the support member 300 can also be set to be convex so that the light emitted by the light source is totally reflected inside the support member 300. In addition, the outer wall surface of the support member 300 can be coated with an optical material, for example, the outer wall surface of the support member 300 is coated with an elastic silicone layer, so that the light emitted by the light source is totally reflected inside the support member 300 or only part of the light is emitted through the side wall surface of the support member 300.

[0247] In some embodiments, as Figure 23 As shown, the support member 300 can be connected to the first light board 210 through a first adhesive structure 310, such as UV glue, double-sided tape, etc., to prevent the support member 300 from moving relative to the first light board 210.

[0248] like Figure 24 As shown, in some embodiments, the support member 300 includes a rigid portion 302 connected thereto;

[0249] In some embodiments, the support member 300 includes a buffer portion 301;

[0250] In some embodiments, the rigid portion 302 is connected to the first light board 210, and the buffer portion 301 is connected to the display panel 100. The height of the rigid portion 302 is greater than the height of the light source 240 of the first light board 210 protruding from the board body 230. This ensures that the light source 240 does not contact the display panel 100 and cause wear when the support member 300 is under pressure.

[0251] The rigid part 302 can be a hard plastic part, and the buffer part 301 can be made of an elastic material such as silicone rubber. The rigid part 302 is used as an inlay and is injection molded on its outer side to form the buffer part 301. The rigid part 302 can be bonded to the first light board 210, and the connection method is simple and reliable.

[0252] The rigid part 302 can be a metal part made of easily weldable material, which is connected to the buffer part 301 by injection molding, mechanical fitting or bonding. The rigid part 302 is welded to the first lamp board 210 and is firmly installed, which is conducive to batch automatic assembly.

[0253] The support member 300 of some embodiments of the present application can utilize the buffering part 301 to ensure the vibration buffering effect by providing a combination of a rigid part 302 and a buffering part 301 that are connected to each other, and can also utilize the rigid part 302 to ensure that the light source 240 does not contact the display panel 100 and cause wear when the support member 300 is under pressure, thereby ensuring that the vibration transmission effect does not change with temperature changes.

[0254] Combine Figure 25 The two ends of the support member 300 can be connected by negative pressure adsorption. For example, suction cup structures 320 can be provided at both ends of the support member 300. The two ends of the support member 300 are fixedly connected to the first light board 210 and the display panel 100 respectively through the suction cup structure 320, and the process is simple to implement.

[0255] Combine Figure 26 One end of the support member 300 is connected via a first adhesive structure 310, and the other end of the support member 300 is connected via a suction cup structure 320. For example, one end of the support member 300 is connected to the first light board 210 via the first adhesive structure 310, and the other end of the support member 300 is fixedly connected to the display panel 100 via the suction cup structure 320. Thus, the support member 300 can be fixed by double-sided bonding or by mechanical structure fixation, thereby achieving vibration linkage between the first light board 210 and the display panel 100 and improving vibration transmission efficiency. However, double-sided bonding or mechanical structure fixation has the disadvantage of complex process implementation. A solution using suction cup adsorption can improve the feasibility of the solution.

[0256] In some embodiments, combined Figure 27 A plurality of limiting portions 214 are provided on the first lamp board 210 , and the limiting portions 214 are configured to limit the support member 300 on the lamp board 210 .

[0257] In some embodiments, the limiting portion 214 is a sink structure, and the opening of the sink structure faces the display panel 100. Alternatively, the limiting portion 214 is a countersunk hole, which passes through the thickness direction of the first light board 210 to facilitate processing; in this case, the support member 300 is connected to the sound plate 212 connected to the first light board 210 through the countersunk hole. The bottom cross-sectional area of the limiting portion 214 is larger than the cross-sectional area of its opening, and one end of the support member 300 extends into the limiting portion 214 and is clamped in the limiting portion 214. When the cross-sectional shape of the support member 300 is rectangular, it can be fixed by interference fit with the limiting portion 214; when the cross-sectional shape of the support member 300 is conical or trapezoidal, the limiting portion 214 can be a stepped hole as shown in the accompanying drawings, or a conical hole.

[0258] A limiting portion 214 may be provided on the first light board 210, such as Figure 27 as shown; or, as Figure 28 As shown, a limit member 215 is provided on the side of the first light board 210 facing the display panel 100. Exemplarily, the limit member 215 is plate-shaped and has a through hole formed therein to expose the light source on the first light board 210. The limit member 215 is provided with a locking hole 2151 extending through its thickness. A support portion 2152 is provided on the first light board 210 at a position corresponding to the locking hole 2151. The support portion 2152 may be a groove or a through hole. The cross-sectional area of the support portion 2152 is larger than that of the locking hole 2151. The locking hole 2151 and the support portion 2152 together form the limit portion 214. Alternatively, the support portion 2152 may be replaced by a through hole. In this case, the support member 300 is connected to the sound board 212 through the through hole.

[0259] It should be noted that the connection method at both ends of the above-mentioned support member 300 is described by taking the support member 300 on the first lamp board 210 as an example. The connection method at both ends of the support member 300 on the second lamp board 220 can refer to the above description and will not be repeated here.

[0260] Reference Figure 29 , a receiving cavity is provided at one end of the support member 300 facing the lamp board, so that the support member 300 can be covered on the outside of the light source. At this time, the support member 300 is a light-guiding support member, which can be achieved by providing a light-guiding member or light-guiding glue point at the light source position. Exemplarily, the support member 300 is connected to the plate body of the lamp board, which is conducive to improving assembly efficiency. This embodiment utilizes the support member 300 with light-guiding properties, which avoids abnormal collision noise in the display device without affecting the luminous efficiency of the lamp board, and improves the vibration transmission efficiency of the area between the lamp board and the display panel 100.

[0261] like Figure 30As shown, the support member 300 can be a multifunctional elastic diffusion film bracket, that is, the support member 300 can replace the lens and diffusion film bracket in the backlight, and the support member 300 can effectively support the display panel 100 by contacting the diffusion film 113 in the optical film assembly 110, and the area of the cross section of the support member 300 parallel to the display panel 100 increases in the direction away from the light board, so that the support member 300 has a uniform light effect on the light emitted by the light source, and can evenly distribute the uneven light intensity of the light source.

[0262] A plurality of bubble structures may be formed inside the support member 300, and the distribution density of the bubble structures decreases in the direction away from the first central axis YY'; and / or, a plurality of light-guiding particles may be filled inside the support member 300, and the distribution density of the light-guiding particles decreases in the direction away from the first central axis YY'; wherein, the first central axis YY' is the longitudinal central axis of the support member 300 perpendicular to the display panel 100, that is, a plurality of bubble structures may be formed inside the support member 300, and the distribution density of the bubble structures decreases in the direction away from the first central axis YY', or a plurality of light-guiding particles may be filled inside the support member 300, and the distribution density of the light-guiding particles decreases in the direction away from the first central axis YY', or a plurality of bubble structures and a plurality of light-guiding particles may be formed inside the support member 300, and the distribution density of the bubble structures and the light-guiding particles decreases in the direction away from the first central axis YY'.

[0263] In some embodiments, the support member 300 may be made of a silicone material with a set transparency, and a plurality of bubble structures may be provided in the support member 300 or filled with light-guiding particles, such as silica particles, etc. Along the direction parallel to the plane where the silica particles are located, the distribution density of the bubble structure or light-guiding particles such as silica particles gradually decreases along the direction away from the longitudinal center axis of the support member 300, so as to utilize the bubble structure or light-guiding particles with the above-mentioned distribution pattern in combination with the shape of the support member 300, so that the support member 300 has a uniform light effect on the light emitted by the light source, and can make the uneven light intensity of the light source evenly distributed, which is beneficial to optimizing the display effect of the display device.

[0264] In some embodiments, the surface of the support member 300 is coated with a reflective film or a reflective material. In some embodiments, the support member 300 also has a light control effect. In local dimming display mode, the surface of the support member 300 is coated with a reflective film or a reflective material, so that light emitted from different light control areas is reflected by the surface of the support member 300 in other control areas, reducing the mutual influence of light between different light control areas and thus avoiding light interference between different local dimming display areas.

[0265] Combine Figure 31The support members 300 are distributed in multiple circular rings with the exciter 400 as the center, and the distribution density of the support members 300 decreases in the direction away from the exciter 400.

[0266] In some embodiments, a large number of support members 300 are installed, which affects the difficulty of process assembly. Based on this, some embodiments of the present application propose a solution for optimizing the number of support members 300 while ensuring vibration buffering and vibration transmission effects. The support members 300 are arranged unevenly according to the distance from the installation position of the exciter 400, wherein the vibration at the position of the exciter 400 is the most intense and the arrangement density of the support members 300 is the largest. The vibration amplitude is small at the position far away from the exciter 400 and the arrangement density of the support members 300 is reduced, thereby ensuring that the vibration buffering and vibration transmission effects in the area where the entire display device is located are relatively uniform, and optimizing the number of support members 300, which is beneficial to reducing the implementation cost of the display device and the difficulty of process assembly.

[0267] In some embodiments, as Figure 32 As shown, the support strength of the support member 300 decreases in the direction away from the exciter 400; and / or the height of the support member 300 decreases in the direction away from the exciter 400. For example, the above settings can be made only for the support strength of the support member 300, only for the height of the support member 300, or both for the support strength and the height of the support member 300.

[0268] In some embodiments, support members 300 of different hardness or sizes are set according to the distance between the support members 300 and the installation area of the exciter 400, so as to achieve the effect that the supporting strength of the support members 300 is inversely proportional to the distance from the exciter 400, that is, the closer the distance to the exciter 400, the greater the supporting strength of the support members 300, and the farther the distance from the exciter 400, the smaller the supporting strength of the support members 300. In this way, the corresponding arrangement of the support members 300 according to the vibration amplitude is achieved, further optimizing the uniformity of the vibration buffering and vibration transmission effects in the area where the entire display device is located.

[0269] On the other hand, the degree of interference fit of the support member 300 can also be adjusted according to the position of the exciter 400, that is, the height of the support member 300 close to the exciter 400 is set to be greater than the height of the support member 300 away from the exciter 400, so that the vibration transmission efficiency at the position close to the exciter 400 is the highest, and the assembly tolerance of the support member 300 at the position away from the exciter 400 is avoided, resulting in a non-interference fit of the support member 300 near the exciter 400, that is, ensuring that the upper and lower surfaces of the support members 300 arranged at various positions in the area where the corresponding display device is located do not separate from the display panel 100 and the first light board 210 when vibrating, thereby optimizing the vibration transmission efficiency of the support members 300 at various positions.

[0270] Combine Figure 32The display device of some embodiments of the present application may further include a sound channel isolation structure 340 , which is disposed on the first light board 210 and configured to space adjacent exciters 400 .

[0271] In some embodiments, the channel isolation structure 340 can be an elastic colloid structure. The channel isolation structure 340 is set in the area where different exciters 400 are located, that is, between the channel vibration areas, to improve the voice isolation between the channels, reduce the vibration impact between the channel vibration areas, and optimize the sound effect of the display device.

[0272] One or more acoustic channel isolation structures 340 may be provided between two adjacent exciters 400. In some examples, the acoustic channel isolation structure 340 may be implemented using the first connector 213 of the above embodiment.

[0273] In some embodiments, the acoustic channel isolation structure 340 is configured to connect multiple support members 300 into one body, that is, the acoustic channel isolation structure 340 and multiple support members 300 are integrally formed, and the support members 300 on different acoustic channel isolation structures 340 are arranged in a staggered manner. This arrangement helps to reduce the difficulty of installing the support members 300.

[0274] like Figure 32 As shown, two channel isolation structures 340 are arranged between adjacent exciters 400, and the support members 300 on the two channel isolation structures 340 are arranged in a staggered manner, so that the vibration is effectively attenuated in the channel isolation structure 340, so as to further optimize the voice isolation between the channels, reduce the vibration influence between the vibration areas of the channels, and optimize the sound effect of the display device.

[0275] When either the first lamp panel 210 or the optical film assembly 110 vibrates, the amplitude corresponding to the location of the exciter 400 is the largest, while the amplitude of the area beyond a certain distance from the exciter 400 decreases sharply. This area is the vibration segmentation area of the first lamp panel 210 and the optical film assembly 110. In this embodiment, to ensure the vibration transmission efficiency and prevent the vibration energy from decaying too quickly, at least one of the first lamp panel 210 and the optical film assembly 110 may be provided with a reinforcing structure 250 for enhancing its own strength. For example, the reinforcing structure 250 may be provided only on the first lamp panel 210, or only on the optical film assembly 110, or alternatively, the reinforcing structure 250 may be provided on both the first lamp panel 210 and the optical film assembly 110. By providing the reinforcing structure 250, the structural strength of the first lamp panel 210 or the optical film assembly 110 can be enhanced, and the area of the vibration segmentation area can be minimized or even eliminated, thereby ensuring the transmission efficiency of the vibration energy and guaranteeing the sound effect.

[0276] By providing at least one of the first light panel 210 and the optical film assembly 110 with a reinforcing structure 250 for enhancing its own strength, the structural strength of the first light panel 210 or the optical film assembly 110 can be enhanced, and the area of the vibration dividing area can be reduced as much as possible or even eliminated to ensure the transmission efficiency of the vibration energy and the sound effect.

[0277] Combine Figures 34 to 36 The reinforcement structure 250 includes a first reinforcement structure 250a. The first reinforcement structure 250a is provided on the side of the first lamp board 210 facing away from the diffusion membrane and is located in the vibration segmentation area of the first lamp board 210. The first reinforcement structure 250a is annular. For example, the first reinforcement structure 250a can be a circular ring structure, or a square structure or other closed ring structure. There is at least one first reinforcement structure 250a, that is, the first reinforcement structure 250a can be one or more, and multiple refers to two or more. By arranging the first reinforcement structure 250a on the first lamp board 210, the first reinforcement structure 250a can be used to connect the different vibration areas 200a of the first lamp board 210, so that the different areas of the first lamp board 210 are evenly stressed, which is conducive to the first lamp board 210 forming a plane displacement vibration, that is, when vibrating, the different areas of the first lamp board 210 are synchronously displaced, reducing the amplitude of the segmented vibration, so as to ensure the transmission efficiency of the vibration energy and ensure the sound effect.

[0278] In some embodiments, combined Figure 34 and Figure 35 There can be multiple first reinforcement structures 250a, and the multiple first reinforcement structures 250a are distributed at intervals inward and outward along the radial direction of the first reinforcement structure 250a. The support members 300 can be divided into multiple transmission groups, and the transmission groups correspond to the first reinforcement structures 250a one by one. The several support members 300 in each transmission group are distributed at intervals in the circumferential direction of the corresponding first reinforcement structure 250a, and are arranged relative to the corresponding first reinforcement structure 250a along the thickness direction of the lamp board 210.

[0279] In this embodiment, on the basis of setting the first reinforcement structure 250a in the split vibration area 200a of the first lamp board 210, the support member 300 is set in the position area corresponding to the first reinforcement structure 250a between the first lamp board 210 and the optical film assembly 110. The reverse pressure of the display panel 100 and the optical film assembly 110 can be used to further suppress the split vibration amplitude of the first lamp board 210 to ensure the vibration transmission efficiency.

[0280] In some embodiments, reference Figure 36The first reinforcement structure 250a is a single component, and the exciter 400 may include a first exciter 400a and a second exciter 400b. The first exciter 400a is located at the center of the first light panel 210, and the first reinforcement structure 250a surrounds the first exciter 400a. The distance between the first reinforcement structure 250a and the first exciter 400a can be adjusted as needed. There may be multiple second exciters 400b, and the multiple second exciters 400b are evenly distributed along the circumference of the first reinforcement structure 250a.

[0281] In this way, on the basis of the drive of the first exciter 400a, by setting up multiple second exciters 400b and arranging the second exciters 400b in the divided vibration area 200a of the first lamp board 210, the modal state of the first lamp board 210 can be balanced through multi-point driving, so as to achieve the goal of uniform force on each area of the first lamp board 210.

[0282] In some embodiments, the first reinforcement structure 250a may also have other configurations. For example, the first reinforcement structure 250a may include multiple sub-reinforcement ribs, each of which is interconnected at one end to form a cross-connection and extends radially at the other end. Of course, the number of sub-reinforcement ribs can be appropriately set based on the number of exciters 400. The first exciter 400a can be located at the cross-connection of the multiple sub-reinforcement ribs, and the second exciter 400b can be located on the corresponding sub-reinforcement ribs. Alternatively, the exciters 400 may be located at the cross-connection of the multiple sub-reinforcement ribs, while the exciters 400b may not be located on the multiple sub-reinforcement ribs. Alternatively, the exciters 400 may be located at locations of the multiple sub-reinforcement ribs away from the cross-connection, while the exciters 400 may not be located at the cross-connection. In this way, uniform force can be applied to all areas of the first light panel 210, and the overall layout is relatively simple and easy to implement.

[0283] In some embodiments, the Figure 22, because after the first lamp board 210 transmits the vibration to the diffusion membrane 113, the diffusion membrane 113 vibrates. The vibration of the diffusion membrane 113 is affected by the modes of each frequency band to produce resonance peaks and valleys, which causes abnormal vibration of the diffusion membrane 113 and affects the sound performance. In addition, the mid- and high-frequency segmentation vibration causes the effective vibration area of the diffusion membrane 113 to gradually decrease, affecting the vibration transmission efficiency. Based on this, in this embodiment, the reinforcement structure can also include a second reinforcement structure 250b, and the second reinforcement structure 250b is constructed as a 250b vibration buffer. The structure of the vibration buffer can be the same as that of the support member 300. The second reinforcement structure 250b is supported between the second lamp board 220 and the diffusion membrane. In this way, the diffusion membrane and the second lamp board 220 in the vibration suppression area 200b are connected through the second reinforcement structure 250b, so that the second lamp board 220 in the vibration suppression area 200b supports the abnormal vibration position of the diffusion membrane, thereby achieving the purpose of suppressing the abnormal vibration of the diffusion membrane.

[0284] In some embodiments, reference Figure 37 , the light board may include a board body 230;

[0285] In some embodiments, the light panel may include a light source 240;

[0286] In some embodiments, the light source 240 is disposed on the side of the panel body 230 facing the optical film assembly 110. The panel body 230 includes a base layer 231 and a composite reinforcement layer 234, which constitutes a reinforcement structure. By replacing the light panel with a single material and adopting a composite structure, both the weight and strength of the light panel can be improved. Improving the strength of the first light panel 210 helps improve the efficiency of mid- and high-frequency vibration transmission, while reducing the weight of the first light panel 210 helps improve the efficiency of vibration transmission across the entire frequency band.

[0287] In some embodiments, the base layer 231 is an aluminum plate, and / or the composite reinforcement layer 234 is a honeycomb plate. In this way, the structural strength of the first light board 210 can be enhanced while reducing the overall weight of the first light board 210, thereby reducing the split vibration amplitude and improving the full-band vibration transmission efficiency.

[0288] The back plate 500 is described in some embodiments below with reference to the accompanying drawings.

[0289] In some embodiments, combined Figures 38 to 40 , the back plate 500 includes a first back plate 510;

[0290] In some embodiments, the backplane 500 includes a second backplane 520;

[0291] In some embodiments, the first back plate 510 is disposed correspondingly to the first light board 210, and the second back plate 520 is disposed correspondingly to the second light board 220. The first back plate 510 and the second back plate 520 are elastically connected. The first light board 210 is connected to the first back plate 510, and the second light board 220 is connected to the second back plate 520, thereby preventing crosstalk and mutual influence caused by vibration between the first light board 210 and the second light board 220.

[0292] The projection of the first back panel 510 in a direction perpendicular to the surface of the first lamp board 210 matches the shape of the first lamp board 210. The projection of the second back panel 520 in a direction perpendicular to the surface of the second lamp board 220 matches the shape of the second lamp board 220. In this way, interference between the second back panel 520 and the first back panel 510 can be avoided.

[0293] In some embodiments, the display device may further include a third connector 530, which is connected between the first back plate 510 and the second back plate 520. The third connector 530 is elastic. The first back plate 510 and the second back plate 520 may be formed into a single unit, and the third connector 530 may act as a buffer between the first back plate 510 and the second back plate 520.

[0294] It is understood that there is a gap between the first back plate 510 and the second back plate 520, and the third connecting member 530 may include an elastic filling member, which is filled in the gap with an interference fit, so that the back plate has good airtightness. For details, please refer to Figure 39 .

[0295] The specific structure of the third connecting member 530 and the connection method of the back plate are described in detail below.

[0296] Please refer to Figure 41 and Figure 42 , in some embodiments, the third connecting member 530 may include an elastic component 531;

[0297] In some embodiments, the third connector 530 may include two third connecting portions 532, the two third connecting portions 532 being connected to both ends of the elastic component 531, and the two third connecting portions 532 being respectively connected to the first back plate 510 and the second back plate 520. While the third connector 530 has good elasticity, it ensures good connection reliability between the third connector 530 and the first back plate 510 and the second back plate 520.

[0298] There may be multiple third connectors 530 , and the multiple third connectors 530 may be distributed along the adjacent edges of the first back plate 510 and the second back plate 520 , and may be symmetrically distributed as a whole, thereby improving the reliability and stability of the connection and fixation.

[0299] For example, the elastic member 531 can be arched, and its width can taper from both ends toward the center, thereby forming a thin waist-shaped structure. This ensures that the first back plate 510 has a certain degree of freedom relative to the second back plate 520. While the first lamp board 210 vibrates and generates sound, it can also reduce the damping stress of the forward and backward vibration perpendicular to the display panel 100. This also reduces the transmission of vibration between the first lamp board 210 and the second lamp board 220. In some embodiments, the third connector 530 can be made of a thin stamped steel sheet.

[0300] Illustratively, the elastic component 531 may be a spring leaf, and may also be arranged in an arch shape.

[0301] In some embodiments, reference Figure 42 , the elastic component 531 can be an S-shaped structure arranged between two third connecting parts 532. Exemplarily, the elastic component 531 may include multiple straight parts and multiple curved parts, the multiple straight parts are parallel to each other and have a gap, and two adjacent straight parts are connected by a curved part to form an S-shaped structure. Exemplarily, the elastic component 531 includes three straight parts and two curved parts, namely a first straight part, a second straight part and a third straight part, the first end of the first straight part is connected to one of the third connecting parts 532, the second end of the first straight part and the second end of the second straight part are connected through a curved part, the first end of the second straight part and the first end of the third straight part are connected through a curved part; the second end of the third straight part is connected to another third connecting part 532.

[0302] Alternatively, please refer to Figure 43 One end of the elastic component 531 can be fixedly connected to one of the two adhesive parts, and the other end of the elastic component 531 can be rotatably connected to the other of the two adhesive parts, thereby forming a hinge-type structure, so that the first back panel 510 and the second back panel 520 have a certain degree of freedom of movement and the two will not interfere with each other.

[0303] It should be noted that during vibration and sound generation or transportation, the arched third connector 530 can absorb some warping deformation when the first and second back panels 510 and 520 move out of alignment, thereby enhancing connection reliability. Furthermore, since the display device can be positioned vertically, the third connector 530, which serves as a vertical connection, can be constructed from an arched thin steel sheet, thereby taking into account the vertical load-bearing function. The third connector 530, which is positioned horizontally, is primarily subjected to forces perpendicular to the front-to-back direction of the display panel 100 and does not bear the weight of the sound-generating panel. Therefore, a more elastic spring sheet structure can be used.

[0304] When the exciter excites the display panel to vibrate, the reaction force of the exciter is transmitted to the circuit board fixed on the backboard through the backboard, which can easily cause the circuit board and the components on it to resonate and emit noise, especially at low frequencies, when the resonance energy and amplitude are large.

[0305] To this end, combined Figure 44 The display device of some embodiments of the present application further includes a circuit board 800; the second back plate 520 is arranged opposite to the circuit board 800, and the second back plate 520 is configured to fix the circuit board 800.

[0306] Some embodiments of the present application separate the complete backplate 500 into a first backplate 510 and a second backplate 520, so that the circuit board 800 is only connected to the second backplate 520, reducing the contact area between the circuit board 800 and the backplate 500, preventing the reaction force of the exciter 400 from being directly transmitted to the circuit board 800, and reducing the resonance noise of the circuit board 800.

[0307] The first back panel 510 and the second back panel 520 are flexibly connected so that the first back panel 510 and the second back panel 520 are connected in sequence to form a "hard-soft-hard" structural component, the boundary of which can reflect and isolate unnecessary resonance energy, further attenuate the vibration transmitted to the circuit board 800, and reduce the mechanical vibration of the circuit board 800 and the TV screen.

[0308] In some embodiments, the display device further includes a vibration-damping connector 810 , which is constructed on the back of the back plate 500 , with both ends of the vibration-damping connector 810 fixedly connected to the first back plate 510 and the second back plate 520 , respectively.

[0309] At least part of the structure of the vibration-damping connector 810 is a flexible portion, so that the first back panel 510, the vibration-damping connector 810 and the second back panel 520 are connected in sequence to form a "hard-soft-hard" structural component, the boundary of which can reflect and isolate unnecessary resonance energy, further attenuate the vibration transmitted to the circuit board 800, and reduce the mechanical vibration of the circuit board 800 and the TV screen.

[0310] By separating the complete back plate 500 into a first back plate 510 and a second back plate 520, the circuit board 800 is connected only to the second back plate 520, thereby reducing the contact area between the circuit board 800 and the back plate 500 and preventing the reaction force of the exciter 400 from being directly transmitted to the circuit board 800; at the same time, the first back plate 510 and the second back plate 520 are connected by a vibration-damping connector 810, thereby further attenuating the reaction force of the exciter 400 transmitted to the circuit board 800, reducing the resonance noise of the circuit board 800, and expanding the frequency response of the display screen to the full-band sound, thereby improving the sound field effect of the display panel.

[0311] In some embodiments of the present application, the vibration-damping connector 810 includes a flexible body 8101 having a first card slot 811 and a second card slot 812; the edge of the first back plate 510 facing the vibration-damping connector 810 matches the first card slot 811, so that the edge of the first back plate 510 facing the vibration-damping connector 810 is embedded in the first card slot 811; the edge of the second back plate 520 close to the vibration-damping connector 810 matches the second card slot 812, so that the edge of the second back plate 520 close to the vibration-damping connector 810 is embedded in the second card slot 812, so that the first back plate 510 and the second back plate 520 are both fixedly connected to the vibration-damping connector 810. The snap-fit structure design of the first back plate 510 and the second back plate 520 respectively with the first card slot 811 and the second card slot 812 is simple and easy to install.

[0312] Please refer to Figure 44 In some embodiments, adjacent portions of the first back panel 510 and the second back panel 520 at least partially overlap, and the flexible body 8101 is connected between the overlapping portions of the first back panel 510 and the second back panel 520 in the thickness direction of the display device. The flexible body 8101 may be made of an elastic material such as rubber or silicone; the first and second slots 811 and 812 are spaced apart along the length of the flexible body 8101.

[0313] The edge of the first back plate 510 facing the vibration-damping connector 810 has a first connecting structure 511. The first connecting structure 511 matches the first latching groove 811, allowing the first connecting structure 511 to be embedded in the first latching groove 811. The edge of the second back plate 520 facing the vibration-damping connector 810 has a second connecting structure 521. The second connecting structure 521 matches the second latching groove 812, allowing the second connecting structure 521 to be embedded in the second latching groove 812. There is a gap between the first connecting structure 511 and the second connecting structure 521, and the flexible body 8101 is connected within this gap.

[0314] The first connection structure 511 includes a first bent portion 5111 and a first mounting portion 5112. The two ends of the first bent portion 5111 are connected to the first back plate 510 and the first mounting portion 5112, respectively. The first bent portion 5111, the first mounting portion 5112, and the first back plate 510 can be perpendicular to each other, or the first bent portion 5111 and the first mounting portion 5112 are not perpendicular to each other, and the first bent portion 5111 and the first back plate 510 are not perpendicular to each other. The first mounting portion 5112 and the first bent portion 5111 can both be plate-shaped structures and can be formed by bending the first back plate 510, which has a simple structure and is easy to process.

[0315] The second connection structure 521 includes a second bent portion 5211 and a second mounting portion 5212. The two ends of the second bent portion 5211 are respectively connected to the second back plate 520 and the second mounting portion 5212. The second bent portion 5211, the second mounting portion 5212, and the second back plate 520 can be perpendicular to each other, or the second bent portion 5211 and the second mounting portion 5212 are not perpendicular to each other, and the second bent portion 5211 and the second back plate 520 are not perpendicular to each other. The second mounting portion 5212 and the second bent portion 5211 can both be plate-shaped structures and can be formed by bending the second back plate 520, which has a simple structure and is easy to process.

[0316] The first mounting portion 5112 and the second mounting portion 5212 are opposed to each other and spaced apart along the front-to-back direction of the display panel. A slot 811 is an annular groove provided on the outer peripheral wall of the flexible body 8101. The first mounting portion 5112 has a first mounting through-hole, through which the first mounting portion 5112 is inserted into the first slot 811. In other words, the first mounting portion 5112 is sleeved onto the wall of the first slot 811 through the first mounting through-hole, and the inner peripheral wall of the first mounting through-hole also engages with the first slot 811, ensuring a stable connection between the first back panel 510 and the vibration-damping connector 810.

[0317] The second card slot 812 is also an annular groove arranged on the outer peripheral wall of the flexible body 8101. The second mounting portion 5212 has a second mounting through hole, and the second mounting portion 5212 is embedded in the second card slot 812 through the second mounting through hole; that is, the second mounting portion 5212 is sleeved on the groove wall of the second card slot 812 through the second mounting through hole, and the inner peripheral wall of the second mounting through hole is also engaged with the second card slot 812, ensuring that the second back plate 520 is stably connected to the vibration damping connector 810.

[0318] In some embodiments, the cross-sectional area of the flexible body 8101 gradually decreases from its first end toward its second end. For example, the flexible body 8101 is truncated cone-shaped. The first slot 811 is disposed at the end of the flexible body 8101 having a larger cross-sectional area, and the second slot 812 is disposed at the end of the flexible body 8101 having a smaller cross-sectional area.

[0319] In some embodiments of the present application, a tapered flexible body 8101 is provided, which not only facilitates the processing of the flexible body 8101 but also makes the structure of the flexible body 8101 more stable.

[0320] In some embodiments, the depth of the first slot 811 is greater than the depth of the second slot 812, so that the connection between the first slot 811 and the first backplane 510 is more stable and reliable. Even if the first backplane 510 vibrates under the drive of the exciter 400, the stability of the connection can still be guaranteed.

[0321] Combine Figure 45 and Figure 46 In some embodiments of the present application, a fastening hole 813 is provided on the flexible body 8101, and the second slot 812 is located outside the fastening hole 813. The central axis of the fastening hole 813 is aligned with the second direction (i.e. Figure 45 and Figure 46 The fastening hole 813 may be provided only at one end of the flexible body 8101 near the second slot 812; alternatively, the fastening hole 813 may be a through hole extending through the flexible body 8101. This arrangement not only reduces weight but also improves the flexibility of the flexible body 8101.

[0322] The vibration-damping connector 810 further includes a fastener 814, which is fixed in the fastening hole 813 to prevent the second back plate 520 from falling out of the second slot 812. In some embodiments, the fastener 814 is interference fit in the fastening hole 813.

[0323] In some embodiments, the fastener 814 includes a head 8141 ;

[0324] In some embodiments, the fastener 814 includes a tail portion 8142;

[0325] In some embodiments, the fastener 814 includes a middle portion 8143, which connects the head 8141 and the tail 8142, the diameter of the tail 8142 is larger than the diameter of the middle portion 8143, and the diameter of the end where the head 8141 is connected to the middle portion 8143 is larger than the diameter of the middle portion 8143.

[0326] The fastening hole 813 may include a first hole segment 8131 and a second hole segment 8132, the central axis of the first hole segment 8131 and the central axis of the second hole segment 8132 are coaxial, the diameter of the first hole segment 8131 is smaller than the diameter of the second hole segment 8132, so that an abutment table is formed at the intersection of the first hole segment 8131 and the second hole segment 8132.

[0327] Among them, the head 8141 is located in the second hole section 8132, and the end of the head 8141 connected to the middle part 8143 abuts against the abutment table to improve the stability of the fastener 814 installed in the fastening hole 813; the middle part 8143 cooperates with the first hole section 8131, and exemplarily, the middle part 8143 and the first hole section 8131 have an interference fit; the tail part 8142 is located on the outside of the fastening hole 813, and the diameter of the tail part 8142 is larger than the diameter of the first hole section 8131, so that the tail part 8142 can abut on the flexible body 8101.

[0328] In some embodiments, the head 8141 can be in an inverted trapezoidal or inverted conical shape, with the wider portion of the inverted trapezoidal or inverted conical shape connected to the middle portion 8143. When the narrower portion of the inverted trapezoidal or inverted conical shape is fully disposed in the second hole section 8132, the wider end of the inverted trapezoidal or inverted conical shape will abut against the abutment surface. The diameter of the narrower end of the inverted trapezoidal or inverted conical shape can be equal to or smaller than the diameter of the first hole section 8131, facilitating insertion of the fastener 814 into the fastening hole 813.

[0329] Reference Figure 47 In some embodiments, the display device may further include a third backplane 540, wherein the third backplane 540 and the second backplane 520 are stacked along the thickness direction of the display panel. The second backplane 520 may be an attached Figures 38 to 40 The second back plate 520 shown. The connection method of the third back plate 540 and the second back plate 520 can refer to the attached Figure 44 The connection method of the first backplane 510 and the second backplane 520 is shown.

[0330] Of course, in some embodiments, the back plate 500 is an integral structure, for example, Figure 3 、 Figure 5 、 Figure 7 as well as Figure 22 The third back plate 540 can be stacked with the back plate 500 along the thickness direction of the display panel. The connection method of the third back plate 540 and the back plate 500 can refer to the attached Figure 44 The connection method of the first backplane 510 and the second backplane 520 is shown.

[0331] Combine Figure 48 The display device of some embodiments of the present application further includes a rear housing 700. The rear housing 700 is located on the side of the actuator 400 facing away from the backlight assembly 200, that is, the rear housing 700 is disposed on the rear side of the actuator 400. The rear housing 700 is located on the side of the backlight assembly 200 facing away from the display panel 100. The rear housing 700 may serve as the exterior housing of the display device. The controller, electrical connections, circuit board 800, and other components of the display device may be disposed between the back plate 50 and the rear housing 700 to simplify the appearance of the display device. The rear housing 700 may be made of plastic, metal, or other materials.

[0332] Continue to refer to Figure 48 In some embodiments, the actuator 400 is located between the rear housing 700 and the backlight assembly 200, and the actuator 410 of the actuator 400 can also be connected to the rear housing 700. For example, the actuator 410 is bonded, screwed, or clamped to the rear housing 700. In this way, when the actuator 410 vibrates, it can simultaneously drive the rear housing 700 to vibrate and produce sound, thereby improving the sound intensity of the display device. The actuator 410 can be directly connected to the rear housing 700, or the actuator 410 can be indirectly connected to the rear housing 700.

[0333] In some embodiments, the exciter 400 further includes a vibration transmission structure 490, through which the actuator 410 is connected to the rear housing 700, thereby exciting the rear housing 700 to vibrate. One end of the vibration transmission structure 490 is connected to the sheet-like connection structure of the actuator 410. Vias are provided in the magnetic member 452 and the housing 430 of the exciter 400, through which the other end of the vibration transmission structure 490 is connected to the rear housing 700. In this manner, during operation, the exciter 400 vibrates both forward and backward. The forward vibration is transmitted through the actuator 410 to the first light board 21 and then to the display panel 100. The backward vibration is transmitted through the vibration transmission structure 490 to the rear housing 700, causing the rear housing 700 to vibrate and generate sound waves. Because low-frequency sound is non-directional, it can be superimposed and amplified with the sound emitted forward from the display device, thereby enhancing the intensity of the low-frequency sound.

[0334] In some embodiments, the vibration transmission structure 490 can be connected to the back cover 700 via a viscous buffer structure 491. The viscous buffer structure 491 includes, but is not limited to, double-sided tape, foam, etc. To ensure the effective transmission of vibration to the back cover 700, the vibration transmission structure 490 is generally made of a hard material. If the vibration transmission structure 490, which is a hard structure, directly contacts the back cover 700, it will cause the hard structures to collide at the contact point and produce noise. The provision of the viscous buffer structure 491 can effectively avoid the problem of hard structures colliding at the contact point and producing noise caused by direct contact between the vibration transmission structure 490 and the back cover 700.

[0335] When the vibration transmission structure 490 vibrates up and down, due to the assembly deviation of the rear shell 700, the assembly deviation of the exciter 400, the uneven force after the rear shell 700 and the exciter 400 are matched, etc., the reaction force exerted by the rear shell 700 on the exciter 400 is uneven, resulting in the vibration transmission structure 490 being unable to vibrate vertically up and down, generating vibration noise. For example, in Figure 48 In the example, the right side of the actuator 400 is close to the edge of the rear housing 700. The vibration amplitude of the rear housing 700 on the right side of the actuator 400 is smaller than that on the left side of the actuator 400. This causes the direction of the reaction force exerted by the rear housing 700 on the actuator 410 to be tilted, causing the actuator 410 to tilt and prevent it from reciprocating vertically along the display device. This in turn causes the actuator 400 to emit abnormal noise.

[0336] To solve this problem, combined Figure 49The exciter 400 is provided with a vibration stabilizer 40a, which is provided corresponding to the vibration transmission space 48. The vibration stabilizer 40a is used to balance the reaction force applied by the rear housing 700 to the vibration transmission structure 490, so that the vibration transmission structure 490 vibrates along the central axis of the exciter 400. In some embodiments of the present application, the central axis of the vibration stabilizer 40a coincides with the central axis of the exciter 400.

[0337] The vibration stabilizer 40a connects the rear housing 700 and the vibration transmission structure 490, thereby connecting the rear housing 700 and the actuator 410. The vibration stabilizer 40a is elastic and may be a spring, rubber member, or the like. In some embodiments, the elastic deformation capability of the vibration stabilizer 40a may be achieved through bending, thinning, or other methods. For example, the vibration stabilizer 40a may be an annular sheet structure disposed around the outside of the actuator 410. By bending the annular sheet structure at least once, the cross-sectional shape of the annular sheet structure may be a concentric wave or sawtooth shape.

[0338] The vibration stabilizer 40a can be configured as an asymmetric structure. Because the exciter 400 is not mounted at the center of the display device, the reaction forces from the rear housing 700 on the two sides or top and bottom of the exciter 400 are different. This can easily cause the vibration transmission structure 490 to vibrate skewed due to the asymmetric forces. Therefore, the vibration stabilizer 40a is configured as an asymmetric design to compensate for the reaction force from the rear housing 700, thereby offsetting the reaction force from the rear housing 700 on the vibration transmission structure 490 and ensuring vertical vibration of the vibration transmission structure 490. The asymmetric design of the vibration stabilizer 40a can be achieved by varying the width, material thickness, or material hardness of the annular sheet structures at different locations.

[0339] To prevent the actuator 410 from tilting, the elastic force of the vibration stabilizing member 40a at different circumferential positions of the actuator 410 may be different, for example Figure 49 On the left side, the elastic force of the vibration stabilizing member 40a is larger to limit the vibration amplitude of the left side of the actuator 410. In this way, the forces at different circumferential positions of the actuator 410 are more balanced and can move back and forth vertically along the display device.

[0340] The display device of some embodiments of the present application utilizes a vibration stabilizer 40a to balance the reaction force applied by the rear shell 700 to the vibration transfer structure 490, so that the vibration transfer structure 490 vibrates along the central axis of the exciter 400, that is, ensuring that the vibration transfer structure 490 can vibrate up and down in the vertical direction, effectively avoiding the problem of noise generated by the vibration stabilizer 40a colliding with structures such as the exciter 400 when vibrating up and down.

[0341] The vibration transmission structure 490 transmits all-band vibrations to the rear shell 700, which may cause abnormal vibrations in the mid- and high-frequency bands of the rear shell 700 and cause noise. In addition, the high-frequency sound waves have strong directionality and are prone to phase differences with the sound waves emitted in the forward direction, resulting in a disordered sound field. Figure 50 In some embodiments of the present application, a high-frequency filtering structure 710 is added between the exciter 400 and the rear housing 700 , so that the high-frequency vibration of the exciter 400 cannot be transmitted to the rear housing 700 .

[0342] The high-frequency filter structure 710 is elastic. Since the amplitude of high-frequency sound is small, when high-frequency, small-amplitude vibrations pass through the high-frequency filter structure 710, the small-amplitude, high-frequency vibration energy is absorbed by the high-frequency filter structure 710. Thus, by providing the high-frequency filter structure 710, the low-frequency vibrations of the actuator 410 can be transmitted to the rear housing 700, driving the rear housing 700 to vibrate and emit low-frequency sound. At the same time, the high-frequency vibrations of the actuator 410 can be prevented from being transmitted to the rear housing 700, and the high-frequency vibrations of the rear housing 700 can also be prevented from being transmitted back to the back plate 50, causing the back plate 50 to resonate and vibrate abnormally. For low-frequency, large-amplitude vibrations, the vibration amplitude is greater than the vibration absorption level of the high-frequency filter structure 710, so the low-frequency vibrations can be transmitted to the rear housing 700, generating a low-frequency response.

[0343] In some embodiments, the high-frequency filter structure 710 may be a spring or a rubber member. For example, the elastic deformation capability of the high-frequency filter structure 710 may be achieved through bending, thinning, or other methods. For example, the high-frequency filter structure 710 may be an annular sheet structure, with the central axis of the annular sheet structure coinciding with the central axis of the exciter. By bending the annular sheet structure at least once, the cross-sectional shape of the annular sheet structure may be wavy or sawtooth-shaped.

[0344] The high-frequency filtering structure 710 is a mechanically compliant structure. In some examples, the high-frequency filtering structure 710 can be made of soft rubber material or other materials that can provide mechanical compliance. It can also achieve the absorption of high-frequency small-amplitude vibrations when passing through the high-frequency filtering structure 710, and the transmission of low-frequency large-amplitude vibrations to the back shell 700 to generate a low-frequency response.

[0345] In addition, the rear shell 700 is located on the side of the back panel 50 away from the first light panel 21, and forms a cavity with the back panel 50 to accommodate the exciter 400. A buffer member 720 can be set between the rear shell 700 and the back panel 50 to prevent the high-frequency vibration of the back panel 50 from being transmitted to the rear shell 700, and to prevent the low-frequency vibration of the rear shell 700 from affecting the back panel 50, and to prevent the back panel 50 from resonating and causing abnormal vibration.

[0346] like Figure 51 As shown, the vibration transfer structure 490 and the rear cover 700 are spaced apart in the thickness direction of the display device, and the vibration transfer structure 490 is connected to the rear cover 700 via the high-frequency filtering structure 710 .

[0347] like Figure 51 As shown, to reduce the thickness of the display device, a first mounting hole 730 is provided on the rear housing 700. Part of the vibration transmission structure 490 is located within the first mounting hole 730. Specifically, the portion where the vibration transmission structure 490 is bonded to the viscous buffer structure 491 is located within the first mounting hole 730. The vibration transmission structure 490 is connected to the rear housing 700 at the edge of the first mounting hole 730 via the high-frequency filter structure 710. This reduces the impact of the high-frequency filter structure 710 on the thickness of the entire device. The high-frequency filter structure 710 and the vibration transmission structure 490 form a diaphragm-like structure that is exposed on the rear housing 700 and can serve as an acoustically explicit feature.

[0348] like Figure 52 As shown, in some embodiments, the rear housing 700 is provided with a second mounting hole 740 at a position corresponding to the exciter 400. A portion of the vibration transmission structure 490 is sunk into the second mounting hole 740. The vibration transmission structure 490 can be fixed to the rear housing 700 at the edge of the second mounting hole 740 via an auxiliary connecting plate 750. Exemplarily, the second mounting hole 740 is a stepped hole, and the auxiliary connecting plate 750 is fixed to the stepped surface of the stepped hole.

[0349] It should be noted here that Figures 48 to 52 In the structure shown, the exciter 400 is fixed to the first lamp board 210 via the damping block 470; of course, the exciter 400 can also be fixed to the first lamp board 210 as shown in FIG. Figure 20 As shown, it is fixed to the back plate 500 via an elastic pad 460 and a fixing pin 480 .

[0350] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

[0351] For ease of explanation, the above description has been made with reference to specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Based on the above teachings, various modifications and variations are possible. The above embodiments are selected and described to better explain the principles and practical applications, so that those skilled in the art can better utilize the embodiments and various different variations of the embodiments suitable for specific use considerations.

Claims

1. A display device, characterized in that: include: a display panel configured to display image information; a backlight assembly, located on one side of the display panel; The backlight assembly comprises: A plurality of light panels, wherein the plurality of light panels are arranged side by side on the same plane; a support member, supported between the light board and the display panel; a back panel, supported on a side of a portion of the light panel facing away from the display panel; An exciter is configured to drive a portion of the lamp panel to vibrate, and when the portion of the lamp panel vibrates, there is a gap between the portion of the lamp panel supported by the back plate along the vibration direction.

2. The display device according to claim 1, wherein The plurality of lamp boards include a first lamp board and a second lamp board, wherein the first lamp board is connected to the vibration output end of the exciter, and the second lamp board is connected to the backboard.

3. The display device according to claim 2, wherein The first light board is elastically connected to the back board via a connecting component; or, there is a gap between the first light board and the back board, and the exciter is configured to support the first light board; And / or, the second light panel is rigidly connected to the back panel.

4. The display device according to claim 2, wherein: The display panel includes a display film layer and an optical film assembly, the optical film assembly is located between the display film layer and the backlight assembly; the support member is interference-enclosed between the optical film assembly and the first light board; at least one of the first light board and the optical film assembly is provided with a reinforcement structure.

5. The display device according to claim 4, wherein: The reinforcement structure includes a first reinforcement structure, which is arranged on the side of the first light panel facing away from the optical film assembly, and the first reinforcement structure is annular, and there is at least one first reinforcement structure; and / or, the reinforcement structure also includes a second reinforcement structure, and the second reinforcement structure includes a vibration buffer, and the vibration buffer is supported between the second light panel and the optical film assembly.

6. The display device according to any one of claims 2 to 5, characterized in that: The back plate includes a first back plate and a second back plate, the first back plate is arranged corresponding to the first light plate, the second back plate is arranged corresponding to the second light plate, and the first back plate and the second back plate are elastically connected.

7. The display device according to claim 6, wherein: The display device further includes a third connecting member connected between the first back plate and the second back plate, and the third connecting member is elastic.

8. The display device according to claim 6, wherein: The display device further includes a circuit board configured to cause the backlight assembly to emit light and control the actuator to vibrate; the circuit board is disposed opposite to at least a portion of the second back plate, and the second back plate is configured to fix the circuit board.

9. The display device according to any one of claims 1 to 5, characterized in that: The exciter comprises: The exciter body, an actuator connected to the backlight assembly, The two ends of the damper are respectively connected to the actuator body and the actuator, and the damper is used to transfer the heat of the actuator to the actuator body.

10. The display device according to claim 9, wherein The damper has a heat-conducting layer, and the heat-conducting layer is in contact with the actuator body.

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