Display device

Abstract

The embodiment of the invention belongs to the technical field of display, and provides display equipment, the display equipment comprises a display panel, lamp panels and an exciter, the vibration output end of the exciter is connected with the splicing position of the lamp panels, vibration force can be transmitted to the lamp panels at the same time, and the vibration area is increased; and the exciter drives the display panel to vibrate and produce sound through the gas in the cavity between the lamp panel and the display panel, so that the acoustic effect is good, and sound and picture integration is easy to realize.

Description

Technical Field

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

[0002] The speakers in display devices, such as televisions, are limited by their ultra-thin design and installation location. They are generally small in size and are forced to use bottom-firing or rear-firing methods. The resulting sound and image positions are separated from the image positions, resulting in a poor viewing experience and an inability to provide an audio-visual experience that integrates sound and image.

[0003] In theory, flat-panel display devices can generate sound waves as long as they can directly vibrate the display panel through a sound-generating exciter. For example, OLED (Organic Light-Emitting Diode) screens have already achieved self-sounding technology, that is, the OLED panel has both the display and the sound-generating function of the speaker diaphragm to achieve an audio-visual effect of integrated sound and picture.

[0004] However, the exciter excites the display panel to vibrate, which increases the connection structure and makes the entire device thicker. Summary of the Invention

[0005] Some embodiments of the present application provide a display device that can realize the vibration and sound generation of the display screen, and the actuator of the exciter that generates the vibration can dissipate heat through elastic waves.

[0006] To achieve the above objectives, some embodiments of the present application provide a display device, including:

[0007] a display panel configured to display image information;

[0008] a light board, wherein a plurality of light boards are provided and spliced with each other, the light board is configured to provide backlight for the display panel, and a cavity is formed between the light board and the display panel;

[0009] An exciter is provided on a side of the light board away from the display panel and drives the light board to vibrate; a vibration output end of the exciter is connected to the light board or a joint of the light boards.

[0010] The display device of some embodiments of the present application displays image information by setting up a display panel; provides backlight for the display panel by setting up a light board, and multiple light boards are spliced together to form a whole, without the need to set up an additional connecting board to make the light board become a whole, which is conducive to simplifying the structure of the display device and reducing the overall thickness of the display device; provides vibration for the display panel to make sound by setting an exciter, and the exciter is set on the side of the light board away from the display panel, so that the setting of the exciter does not affect the display function of the display panel; the vibration output end of the exciter is connected to the splicing point of the light board, and can transmit vibration force to multiple light boards at the same time, thereby increasing the vibration area; and the exciter drives the display panel to vibrate and make sound through the cavity between the light board and the display panel, which has a good acoustic effect and is easy to achieve the unity of sound and picture. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the implementation methods in the embodiments of the present application or related technologies, the following is a brief introduction to the drawings required for use in the embodiments or related technology descriptions. 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.

[0012] 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;

[0013] Figure 2 A block diagram of a display device according to some embodiments of the present application;

[0014] Figure 3 This is a schematic structural diagram of a display device according to some embodiments of the present application;

[0015] Figure 4 A cross-sectional view of a display device according to some embodiments of the present application;

[0016] Figure 5 Layout diagram of the exciter and light board of some embodiments of the present application;

[0017] Figure 6 Layout diagram of the exciter and light board of some embodiments of the present application;

[0018] Figure 7 Layout diagram of the exciter and light board of some embodiments of the present application;

[0019] Figure 8 Layout diagram of the exciter and light board of some embodiments of the present application;

[0020] Figure 9 A schematic cross-sectional view of an actuator according to some embodiments of the present application;

[0021] Figure 10Schematic cross-sectional view of a damper according to some embodiments of the present application;

[0022] Figure 11 This is a schematic diagram of the structure of the springs of some embodiments of the present application;

[0023] Figure 12 This is a schematic diagram of the structure of the springs of some embodiments of the present application;

[0024] Figure 13 Schematic cross-sectional view of a damper according to some embodiments of the present application;

[0025] Figure 14 Schematic cross-sectional view of a damper according to some embodiments of the present application;

[0026] Figure 15 This is a schematic diagram of the structure of the springs of some embodiments of the present application;

[0027] Figure 16 This is a schematic diagram of the structure of the springs of some embodiments of the present application;

[0028] Figure 17 A schematic cross-sectional view of a display device according to some embodiments of the present application;

[0029] Figure 18 A schematic cross-sectional view of a display device according to some embodiments of the present application;

[0030] Figure 19 A schematic cross-sectional view of a display device according to some embodiments of the present application;

[0031] Figure 20 Schematic cross-sectional views of support members in different states according to some embodiments of the present application;

[0032] Figure 21 A schematic cross-sectional view of a display device according to some embodiments of the present application;

[0033] Figure 22 A schematic cross-sectional view of a display device according to some embodiments of the present application;

[0034] Figure 23 A schematic cross-sectional view of a display device according to some embodiments of the present application;

[0035] Figure 24 A schematic cross-sectional view of a display device according to some embodiments of the present application;

[0036] Figure 25 A schematic cross-sectional view of a display device according to some embodiments of the present application;

[0037] Figure 26 A schematic diagram of the arrangement of actuators and support members of a display device according to some embodiments of the present application;

[0038] Figure 27 A schematic diagram of the arrangement of actuators and support members of a display device according to some embodiments of the present application;

[0039] Figure 28 A schematic cross-sectional view of a display device according to some embodiments of the present application;

[0040] Figure 29 A schematic cross-sectional view of a display device according to some embodiments of the present application;

[0041] Figure 30 A schematic diagram of the arrangement of the sound channel isolation structure of a display device according to some embodiments of the present application;

[0042] Figure 31 A schematic cross-sectional view of a display device according to some embodiments of the present application;

[0043] Figure 32 A schematic cross-sectional view of a display device according to some embodiments of the present application;

[0044] Figure 33 A schematic cross-sectional view of a display device according to some embodiments of the present application;

[0045] Figure 34 A schematic cross-sectional view of a display device according to some embodiments of the present application;

[0046] Figure 35 A schematic cross-sectional view of a display device according to some embodiments of the present application;

[0047] Figure 36 A cross-sectional view of a display device provided in some embodiments of the present application;

[0048] Figure 37 A schematic diagram of the distribution of a first type of sound emission area of a display device provided in some embodiments of the present application;

[0049] Figure 38 A schematic diagram of the distribution of the second sound emission area of the display device provided in some embodiments of the present application;

[0050] Figure 39 A schematic diagram of the distribution of the third sound emission area of the display device provided in some embodiments of the present application;

[0051] Figure 40 A schematic diagram illustrating the distribution of a fourth type of sound emission area of a display device provided in some embodiments of the present application;

[0052] Figure 41 A schematic diagram of the distribution of actuators of a display device provided in some embodiments of the present application;

[0053] Figure 42 is a cross-sectional view of a display device according to some embodiments of the present invention;

[0054] Figure 43 This is a schematic structural diagram of a display device according to some embodiments of the present application;

[0055] Figure 44 This is a schematic structural diagram of a display device according to some embodiments of the present application;

[0056] Figure 45 This is a schematic structural diagram of a display device according to some embodiments of the present application;

[0057] Figure 46 This is a schematic structural diagram of a display device according to some embodiments of the present application;

[0058] Figure 47 This is a schematic structural diagram of a display device according to some embodiments of the present application;

[0059] Figure 48 This is a schematic structural diagram of a display device according to some embodiments of the present application;

[0060] Figure 49 This is a schematic structural diagram of a display device according to some embodiments of the present application;

[0061] Figure 50 This is a schematic structural diagram of a display device according to some embodiments of the present application;

[0062] Figure 51 This is a schematic structural diagram of a display device according to some embodiments of the present application;

[0063] Figure 52 A schematic structural diagram of an actuator for a display device according to some embodiments of the present application;

[0064] Figure 53 This is a schematic diagram of the layout of the exciter on the light board in some embodiments of the present application;

[0065] Figure 54 This is a schematic diagram of the layout of the exciter on the light board in some embodiments of the present application;

[0066] Figure 55 This is a schematic diagram of the layout of the exciter on the light board in some embodiments of the present application;

[0067] Figure 56 Schematic diagram of the cross-sectional structure of a display device according to some embodiments of the present application;

[0068] Figure 57 This is a schematic structural diagram of a vibration-damping connector of a display device in some embodiments of the present application;

[0069] Figure 58 This is a schematic structural diagram of a vibration-damping connector of a display device in some embodiments of the present application;

[0070] Figure 59 This is a schematic diagram of the three-dimensional structure of a display device according to some embodiments of the present application;

[0071] Figure 60 This is a schematic structural diagram of a display device according to some embodiments of the present application;

[0072] Figure 61 This is a schematic structural diagram of a display device according to some embodiments of the present application;

[0073] Figure 62 This is a schematic structural diagram of a display device according to some embodiments of the present application;

[0074] Figure 63 This is a schematic structural diagram of a display device according to some embodiments of the present application.

[0075] Description of reference numerals:

[0076] 10: Display device; 20: Smart device; 30: Server;

[0077] 100: display panel; 110: optical film assembly; 111: brightness enhancement film; 112: fluorescent film; 113: diffusion film; 120: display film layer;

[0078] 210: Light board; 210a: First light board; 210b: Second light board; 211: Connector; 212: Sounding board; 214: Limiting portion; 215: Limiting portion; 2151: Clamping hole; 2152: Supporting portion; 250: Second adhesive member; 260: Fourth adhesive member; 270: Fifth adhesive member; 201: Left main channel area; 202: Right main channel area; 203: Center channel area; 204: Left surround channel area; 205: Right surround channel area; 206: Bass area;

[0079] 300: support member; 310: first adhesive structure; 320: welding structure; 340: sound channel isolation structure;

[0080] 400: actuator; 401: third adhesive component; 402: coil assembly; 410: actuator; 411: third connecting structure; 420: damper; 4201: main body; 4202: first connecting part; 4203: second connecting part; 421: fiber layer; 422: thermal conductive layer; 423: thermal conductive film; 4231: through hole; 430: housing; 440: pressure ring; 450: magnetic component; 451: magnetic conductive component; 452, 452a, 452b, 452c, 452d, 452e: magnetic component; 460: elastic pad; 470: damping block; 480: fixing pin; 490: vibration transmission structure; 491: viscous buffer structure; 40a: vibration stabilizing component;

[0081] 500: back panel; 501: back panel body; 502: first side panel; 503: opening; 504: convex bump; 505: first adhesive member; 506: perforation; 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;

[0082] 600: middle frame; 611: first sealing member; 612: second sealing member;

[0083] 700: rear housing; 710: high-frequency filter structure; 720: buffer; 730: first mounting hole; 740: second mounting hole; 750: auxiliary connecting plate;

[0084] 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;

[0085] 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;

[0086] M: cavity; N: magnetic air gap. DETAILED DESCRIPTION

[0087] 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.

[0088] 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.

[0089] 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.

[0090] 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.

[0091] 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.

[0092] 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.

[0093] 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, a poor viewing experience, and a failure to provide a unified audiovisual experience. In related technologies, an actuator is installed on the display device to generate sound on the screen, allowing the display panel to combine display and sound generation functions, achieving a unified audiovisual experience.

[0094] Taking Mini-LED display devices as an example, Mini-LED display devices include self-luminous light panels. The exciter can be connected to the entire light panel and drive the entire light panel to vibrate, and the vibrating light panel is used to drive the display panel to vibrate and make sound.

[0095] However, compared with the light board in OLED display devices, the light board of Mini-LED display devices is harder. The exciter installed on the back panel drives the entire Mini-LED light board to vibrate together, resulting in large vibration mass and vibration area, fast vibration energy decay, poor mid- and high-frequency sound effects, and long-term large-area vibration will increase the reliability risk of the light board and optical structure, which may cause damage to the light board or wear of the optical diaphragm, resulting in poor image quality.

[0096] Some embodiments of the present application provide a display device that is connected via the joint of the exciter and the light board, eliminating the need for an additional connection structure between the exciter and the light board, thereby reducing the thickness of the entire device.

[0097] The exciter in some embodiments of the present application excites at least part of the light panel to vibrate, thereby achieving synchronization of sound and picture, reducing vibration energy attenuation, and improving the acoustic effect of screen sound.

[0098] In the related art, compared with display devices using OLED light sources, because OLED displays are self-luminous screens and the OLED displays themselves have a certain degree of flexibility, an exciter can be set on the back of the OLED display to allow the OLED display to elastically deform and emit sound 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 used as a vibration transmission medium to transmit the vibration of the lamp board to the display panel, thereby improving the transmission efficiency of vibration from the lamp board to the display panel. In addition, the support member can maintain the gap of the cavity M 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.

[0099] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0100] 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.

[0101] 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 1As 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.

[0102] 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.

[0103] 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.

[0104] In some embodiments, the display device 10 includes an audio output interface 907;

[0105] In some embodiments, the display device 10 includes a memory 908;

[0106] In some embodiments, the display device 10 includes a power supply 909;

[0107] 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.

[0108] 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.

[0109] 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.

[0110] 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.).

[0111] 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.

[0112] 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.

[0113] 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.

[0114] 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.

[0115] 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.

[0116] 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.

[0117] 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.

[0118] Reference Figure 3 Some embodiments of the present application provide a display device 10 , which includes a display panel 100 , and the display panel 100 is configured to display image information such as text and images.

[0119] The display panel 100 includes a display film layer 120. The display film layer 120 may be a liquid crystal film layer. 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, with the LC layer 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 backlight light through the color filter substrate and generating a preset color image.

[0120] The display device 10 in some embodiments of the present application further includes a backlight assembly, which includes a light board 210 to provide backlight for the display panel 100 .

[0121] In some embodiments, the light board 210 includes a board body, which can be an aluminum board, a printed circuit board (PCB), etc. The light source 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 LED).

[0122] In some embodiments, the light board 210 includes a light source, which may be a lamp bead or a light strip, etc. Multiple light sources may be fixed to the board by snap-fitting, threaded connection, etc.; there may be multiple light sources and they may be spaced apart on the board.

[0123] When the light panels 210 are mini-LEDs, the light from each light panel 210 can be independently controlled, achieving higher positioning accuracy when displaying images on the display panel 100. Furthermore, the display device can also be a laser TV. The present embodiment of the application does not limit the specific image display principle of the display device; it only requires that the exciter 400 vibrates the light panels 210 to cause the display panel 100 to vibrate and produce sound.

[0124] In some embodiments, considering factors such as the size of the display device 10 and the manufacturing process of the light board 210, the backlight assembly includes a plurality of light boards 210 arranged in an array, and the plurality of light boards 210 are arranged in the same plane. Figure 3 The display device 10 includes six light boards 210 , three light boards 210 are arranged along the horizontal direction of the display device 10 , and two light boards 210 are arranged along the longitudinal direction of the display device 10 .

[0125] Multiple independent light panels 210 are spliced together to form a whole. For example, two adjacent light panels 210 are provided with connectors 211 on the side facing away from the display panel 100. The connectors 211 secure the two adjacent light panels 210 together, thereby splicing the two adjacent light panels 210 together. The connectors 211 can be adhesives, such as double-sided tape or foam, for simple and convenient connection. Alternatively, the connectors 211 include a base layer and an adhesive backing disposed on the base layer, which secures the two adjacent light panels 210 together.

[0126] like Figure 3 As shown, the light board 210 may be arranged along a first direction (eg Figure 1Of course, in other possible examples, while ensuring that the spliced light boards 210 can cover the display panel 100, more light boards 210 or fewer light boards 210 can be provided in the first direction according to the different sizes of each light board 210, and the sizes of any two of the multiple light boards 210 along the first direction can be the same or different, and the sizes of the light boards 210 at different positions can be reasonably set according to the positions of the light boards 210.

[0127] like Figure 4 As shown, a cavity M is formed between the light board 210 and the display panel 100. The gas within the cavity M does not circulate with the outside air. The light source of the light board 210 is located within the cavity M. The air within the cavity M is viscous, with a kinematic viscosity much higher than that of water. The cavity M can be equivalent to a damping spring, configured to transmit vibrations between the light board 210 and the display panel 100, causing the display panel 100 to vibrate and produce sound.

[0128] The display device 10 may be a liquid crystal display device. The display device 10 includes a backlight module, which may be a direct-lit backlight module. In this case, the backlight module includes a light panel, which provides backlight for the display panel through its light source. When the light panel vibrates, it compresses the gas within the cavity M, transmitting the vibrations to the display panel through the cavity M, causing the display panel to vibrate. The vibrations then generate sound waves, allowing the display panel to both display images and replace speakers for sound production.

[0129] The gap size of the cavity M can be determined based on the light source of the light panel, for example, the gap size is related to the size of the light source. Sub-millimeter light-emitting diodes (such as Mini-LEDs) have relatively compact sizes, which correspondingly results in a smaller gap in the cavity M between the backlight panel and the liquid crystal display panel. This reduces the thickness of the cavity M and improves the vibration transmission effect of the cavity M. Therefore, in this embodiment, the light source of the backlight module is described as a sub-millimeter light-emitting diode (Mini-LED).

[0130] For example, the gap of the cavity M can be 0.3 mm to 10 mm, with the maximum gap of the cavity M being 10 mm. Alternatively, the gap of the cavity M can be 0.3 mm or 1 mm. For example, when the gap of the cavity M is 1 mm, the thickness of the cavity M is relatively small, which can improve the transmission efficiency of the vibration force output by the exciter. Alternatively, when the gap of the cavity M is 0.3 mm, the distance between the exciter 400 and the display panel 100 is closer, resulting in stronger vibration and better sound effects. When the gap of the cavity M is 10 mm, the thickness of the cavity M is relatively large, which can prevent collision between the display panel and the light source at a certain position during vibration. Specifically, the gap of the cavity M can be 0.1mm, 0.2mm, 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 the embodiments of the present application are approximate values. Due to the influence of the manufacturing process, there may be a certain range of errors, which can be considered negligible by those skilled in the art.

[0131] Continue to refer to Figure 4 The display device of some embodiments of the present application further includes an actuator 400, which provides vibrations for the display panel 100 to produce sound. Specifically, the actuator 400 is disposed on the side of the light board 210 facing away from the display panel 100. The placement of the actuator 400 does not affect the display of the display device. The actuator 400 is configured to drive the light board 210 to vibrate, utilizing the gas in the cavity M to form a damping spring, transmitting the vibration force to the display panel 100, causing the display panel 100 to vibrate and produce sound.

[0132] In some embodiments, the actuator 400 can drive a plurality of light panels 210 located near the middle of the display panel 100 along the first direction to vibrate. In this way, the light panels 210 in the middle region can vibrate and produce sound by driving the display panel 100. The vibration output end of the actuator 400 is connected to the joint of the light panels 210.

[0133] Since multiple lamp boards 210 are arranged in an array and connected to each other, when the exciter 400 is set on a single lamp board 210, when the vibration energy is transmitted from the lamp board 210 where the exciter 400 is located to the lamp boards 210 around it, the overall vibration mass and area of the multiple lamp boards 210 are large, resulting in rapid attenuation of the vibration energy (the measured frequency response drops sharply after kHz), resulting in poor mid- and high-frequency sound effects of the display device 10.

[0134] The display device 10 of this embodiment, since the exciter 400 is arranged at the joint near the middle of the display device 10, can better promote the vibration of the lamp panel 210 in the middle area, which is equivalent to reducing the vibration area and vibration mass, and can improve the vibration sensitivity and high-frequency ductility, thereby improving the mid- and high-frequency sound performance of the display device 10 (from the measured curve, the average sensitivity is improved by more than 3dB, of which 2000Hz is improved by more than 5dB, and the effective frequency range can be extended to 20kHz). It can also avoid the long-term vibration of all lamp panels 210 over a large area, which increases the reliability risk of the lamp panels 210 and other optical structures, and causes problems such as lamp damage and diaphragm wear, which is beneficial to improving picture quality. In addition, the number of exciters 400 can be reduced, thereby reducing costs.

[0135] The plurality of light panels 210 form a plurality of splicing positions, and two adjacent splicing positions are respectively located on both sides of the light panel 210. The plurality of splicing positions include a first splicing position located in the middle of the display device 10. For example Figure 60 and Figure 61 As shown, when the light panels are in a row and a plurality of light panels 210 are arranged side by side along a first direction (such as the length direction of the display device 10), the first splicing position refers to a plurality of splicing positions located in the middle of the display device 10 along the first direction among the plurality of splicing positions; Figure 62 and Figure 63 As shown, when the light panels are arranged in multiple rows and columns, the first splicing positions refer to the plurality of splicing positions located in the middle of the display device 10 along the first and second directions (e.g., the height direction of the display device 10). This arrangement can achieve sound emission in the middle area of the display device, improving the stereo sound effect of the display device.

[0136] Combine Figures 5 to 8 Multiple light panels 210 are arranged in an array and spliced together. The splicing gaps of the light panels 210 are of two types: one extending horizontally along the display device, and the other extending vertically along the display device. The actuator 400 can be positioned at the horizontal joints of the light panels 210, and / or at the vertical joints of the light panels 210, and / or at the cross joints of the light panels 210, i.e., at the intersection of the horizontal and vertical joints.

[0137] In some embodiments, the light panels 210 are spliced together through connectors 211 to form an integral backlight panel.

[0138] In some embodiments, the splicing gap extends in the horizontal direction of the display device and can be defined as a horizontal splicing gap; accordingly, the connecting member 211 includes a horizontal connecting member extending in the horizontal direction of the display device. The actuator 400 can be arranged on the horizontal connecting member, such as Figure 5As shown, a plurality of exciters 400 can be provided, and the plurality of exciters 400 can be arranged at intervals in the extension direction of the transverse connecting member; the plurality of exciters 400 can be arranged in a rectangular matrix on the plurality of transverse connecting members.

[0139] In some embodiments, the splicing gap extends along the longitudinal direction of the display device and can be defined as a longitudinal splicing seam; accordingly, the connecting member 211 includes a longitudinal connecting member extending along the longitudinal direction of the display device. The actuator 400 can be arranged on the longitudinal connecting member, such as Figure 6 As shown; multiple exciters 400 can be provided, and multiple exciters 400 can be arranged at intervals in the extension direction of the longitudinal connecting member. Figure 6 As shown, a plurality of actuators 400 are arranged in a rectangular matrix on a plurality of longitudinal connecting members.

[0140] Of course, the exciter 400 can be set on both the transverse connector and the longitudinal connector. For example, the exciter is set at the intersection of the transverse connector and the longitudinal connector. When multiple exciters 400 are set, at least one exciter 400 is set on the transverse connector and at least one exciter 400 is set on the longitudinal connector. Figure 7 shown.

[0141] In some embodiments, the transverse connector extends to both ends of the light board 210; or, both ends of the transverse connector do not extend to both ends of the light board 210, and the extension length of the transverse connector is less than the transverse dimension of the light board 210, such as Figure 8 As shown. Figure 5 As shown, a horizontal joint seam of the backlight panel can be provided with multiple horizontal connectors; or, a single horizontal connector is provided, which runs through both ends of the backlight panel in the horizontal direction; such a setting is conducive to ensuring the reliability of the splicing of the light panel 210.

[0142] In some embodiments, the longitudinal connector extends to both ends of the light board 210 in the longitudinal direction. Figure 8 Alternatively, the ends of the longitudinal connector do not extend to the ends of the longitudinal direction of the light board 210, and the extension length of the longitudinal connector is less than the longitudinal dimension of the light board 210. Figure 7 As shown, a longitudinal joint of the backlight panel can be provided with multiple longitudinal connectors; or a longitudinal connector is provided, and the longitudinal connector runs through both ends of the longitudinal direction of the backlight panel, such as Figure 5 As shown; such a setting is conducive to ensuring the reliability of the splicing of the light board 210.

[0143] In an embodiment of the present application, multiple independent lamp boards 210 are spliced together, and the vibration output end of the exciter 400 is connected to the splicing point of the lamp boards 210. The exciter 400 directly transmits the vibration to the multiple lamp boards 210, the vibration mass is relatively small, and the energy decays slowly; and the exciter 400 is used to support the lamp board 210, and there is no need to set a connecting plate on the side of the lamp board 210 away from the display panel 100, which is beneficial to reducing the difficulty of assembling the display device; and it is also beneficial to reducing the thickness of the entire machine.

[0144] The actuator 400 in some embodiments of the present application may be any one or more of an electromagnetic actuator, a magnetostrictive actuator, and a piezoelectric actuator, and has high applicability.

[0145] In some embodiments, the actuator 400 may include a magnetic field generating unit (e.g., a magnet);

[0146] In some embodiments, the actuator 400 may include a vibration coil;

[0147] In some embodiments, the magnetic field generating unit is configured to generate a magnetic field by inputting a continuously changing current into the vibration coil so that the force exerted by the vibration coil in the magnetic field generated by the magnetic field generating unit continuously changes, thereby generating vibration.

[0148] Among them, combined Figure 9 , the actuator 400 of some embodiments of the present application includes: an actuator 410;

[0149] In some embodiments, the actuator 400 includes a spider 420;

[0150] In some embodiments, the actuator 400 includes a housing 430;

[0151] The vibration output end of the actuator 410 is connected to the joint of the light 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 housing 430 .

[0152] When the exciter 400 is activated, the actuator 410 vibrates and drives the light board 210 to vibrate. The vibration force is transmitted to the display panel 100 via the gas in the cavity M, 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, and the position of the sound image is approximately coincident with the center position of the screen, achieving a unified audio and video, and providing users with a better audio-visual effect.

[0153] In some embodiments, the central axis of the actuator 400 is perpendicular to the 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, that is, Figure 9 Middle vertical direction.

[0154] 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 light board 210 to prevent the actuator 410 and the light board from being separated from each other.

[0155] 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 .

[0156] In some embodiments of the present application, the central axis of the spider 420 coincides with the central axis of the actuator 400 .

[0157] In some embodiments, the wave damper 420 includes a body portion 4201 ;

[0158] In some embodiments, the spider 420 includes a first connecting portion 4202 ;

[0159] In some embodiments, the wave damper 420 includes a second connecting portion 4203;

[0160] 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 is connected to the actuator 410. The outer end of the main body 4201 is bent to form a second connecting portion 4203, which is connected to the housing 430. The second connecting portion 4203 can be directly connected to the housing 430, or indirectly connected to the housing 430 via other components.

[0161] For example, the first connection portion 4202 and the second connection portion 4203 are both sheet-like structures, which is beneficial for increasing the connection area between the damper 420 and the housing 430 and the actuator 410, which not only helps to improve the stability of the connection, but also facilitates heat transfer.

[0162] In some embodiments of the present application, actuator 400 employs a damper 420 to transfer heat generated by the vibration of actuator 410 to housing 430 for dissipation. This allows heat generated by actuator 410 to be dissipated not only through air but also through damper 420, lowering the temperature of actuator 410 and minimizing the impact of localized temperature on image display quality. Furthermore, the provision of a first connecting portion 4202 increases the connection area with actuator 410, while the provision of a second connecting portion 4203 increases the connection area with housing 430, enhancing heat dissipation.

[0163] 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.

[0164] 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. This allows the heat of the actuator 410 to be mainly transferred to the housing 430 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.

[0165] In some embodiments, the damper 420 is bonded to the actuator 410 and the housing 430 , respectively. For example, the damper 420 is bonded to the actuator 410 and the housing 430 , respectively, by glue, and the connection method is simple and stable.

[0166] Reference Figures 10 to 12 In some embodiments, the elastic wave 420 includes stacked fiber layers 421 ;

[0167] In some embodiments, the damper 420 includes a stacked heat conducting layer 422 .

[0168] The fiber layer 421 includes, but is not limited to, mesh or fiberglass mesh, and has been resin-impregnated and cured. The thermally conductive layer 422 can be a graphene film, which can be made from flake graphite, oxidized to form a graphene oxide slurry, and then processed through coating, film formation, sintering, reduction, and calendering. Alternatively, the thermally conductive layer 422 can be formed by coating or spraying a thermally conductive material onto the fiber layer 421.

[0169] In some examples, the heat conductive layer 422 is flexible, so that the spider 420 can have a certain elastic deformation capability.

[0170] A possible manufacturing process for the Dart Wave 420 includes: first, using flake graphite as the raw material, undergoing oxidation and pulping processes to form a graphene oxide slurry; then applying it to form a base film, followed by sintering, reduction, and calendaring processes to form a graphene membrane; second, using fiber mesh cloth as the raw material, impregnating the fiber mesh cloth with resin to form a fiber membrane; finally, stacking the graphene membrane and fiber membrane, and embossing them into a wavy shape. After curing, the Dart Wave 420 with high thermal conductivity is formed.

[0171] 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. This damper 420 is not only elastic but also has high thermal conductivity, facilitating the transfer of heat generated by the actuator 410 to the housing 430 while reducing the amount of heat generated by the actuator 410 that is transferred to the display panel.

[0172] In some embodiments, reference Figure 10 and Figure 12 The elastic wave 420 includes fiber layers 421 stacked together;

[0173] In some embodiments, reference Figure 10 and Figure 12 The elastic wave 420 includes a stacked heat conducting layer 422;

[0174] The fiber layer 421 is provided with two layers, and the heat conducting layer 422 is located between the two fiber layers 421 .

[0175] In some embodiments, in other embodiments, reference Figure 11 The elastic wave 420 includes a stacked fiber layer 421 and a heat conducting layer 422 . The heat conducting layer 422 includes two layers, and the fiber layer 421 is located between the two heat conducting layers 422 .

[0176] In some other embodiments, the spring wave 420 includes multiple fiber layers 421 ;

[0177] In some other embodiments, the damper 420 includes multiple heat-conducting layers 422 , where multiple fiber layers 421 and multiple heat-conducting layers 422 are alternately stacked.

[0178] 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 heat-conducting layers 422 to improve the thermal conductivity of the damper 420 .

[0179] Combine Figure 13 In some embodiments, the heat-conducting layer 422 is in contact with the outer shell 430, which helps to improve the heat transfer efficiency and thus improve the heat dissipation efficiency of the actuator 410. When the heat-conducting layer 422 is located on at least one surface of the elastic wave 420, the surface is in direct contact with the outer shell 430; when the heat-conducting layer 422 is located in the inner layer of the elastic wave 420, for example, when the heat-conducting layer 422 is located between two fiber layers 421, the fiber layer 421 of the elastic wave 420 facing the outer shell 430 is provided with a gap, so that the heat-conducting layer 422 is arranged on the surface of the elastic wave 420 and thus in contact with the outer shell 430. Figure 9 The fiber layer 421 corresponding to the second connection portion 4203 of the wave damper 420 is provided with a notch, so that the heat conducting layer 422 is arranged on the surface of the wave damper 420 , and the surface is in contact with the housing 430 .

[0180] It is understandable that the heat conducting layer 422 may be in direct contact with the housing 430 , or when the heat conducting layer 422 is indirectly connected to the housing 430 through other components, the heat conducting layer 422 may be in indirect contact with the housing 430 through other components.

[0181] Combine Figures 14 to 16 In some possible embodiments of the present application, the damper 420 includes a stacked heat-conducting film 423 ;

[0182] In some embodiments, the damper 420 includes stacked fiber layers 421 , and the thermally conductive film 423 is provided with a plurality of through holes 4231 .

[0183] The material and preparation method of the fiber layer 421 can be the same as those in the above-mentioned embodiment. A thermally conductive film 423 is then formed, which is then bonded or hot-melted to form the integral damper 420. The through-holes 4231 provided in the thermally conductive film 423 can be circular, elliptical, polygonal, or irregularly shaped. Multiple through-holes 4231 can be arranged in a matrix, such as a rectangular or circular matrix, on the thermally conductive film 423. The present embodiment does not limit the number, shape, or arrangement of the through-holes 4231.

[0184] In some embodiments, the thickness of the thermally conductive film 423 may be 100 μm to 1000 μm, for example, 200 μm, 300 μm, 400 μm, 500 μm, 600 μm, 700 μm, 800 μm, 900 μm, etc.

[0185] 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.

[0186] In some examples, reference Figure 16 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 .

[0187] In other examples, refer to Figure 14 and Figure 15 The fiber layer 421 is provided with two layers, and the thermal conductive film 423 is provided between the two fiber layers 421 .

[0188] 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.

[0189] 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 .

[0190] For the damper 420 of this embodiment, the heat conductive film 423 is in contact with the housing 430 , which is beneficial to improving the heat transfer efficiency and further improving the heat dissipation efficiency of the actuator 410 .

[0191] Refer again Figure 9 In some embodiments of the present application, the actuator 400 further includes a pressure ring 440, which is configured to press the damper 420 against the housing 430 and has thermal conductivity. For example, the pressure ring 440 may be metal to ensure efficient heat transfer. The second connection portion 4203 of the damper 420 is pressed against the housing 430 by the pressure ring 440, thereby improving the stability and tightness of the connection between the damper 420 and the housing 430 and facilitating heat transfer.

[0192] For example, the pressure ring 440 and the housing 430 , as well as the pressure ring 440 and the damper 420 , can be bonded together, and the connection method is simple and stable.

[0193] Continue to refer to Figure 9 , taking the exciter 400 as an electromagnetic exciter as an example, the electromagnetic exciter includes a magnetic component 450;

[0194] Continue to refer to Figure 9 , taking the exciter 400 as an electromagnetic exciter as an example, the electromagnetic exciter includes a voice coil;

[0195] The magnetic assembly 450 is configured to generate a magnetic field, and the voice coil vibrates along the axis of the voice coil in the magnetic field.

[0196] In some embodiments, the magnetic assembly 450 includes a magnetic conductive member 451;

[0197] In some embodiments, the magnetic assembly 450 includes a magnetic member 452;

[0198] 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.

[0199] One end of the voice coil is connected to the light board 210. A third sheet-like connecting structure 411 can be positioned between the voice coil and the light board 210 to increase the connection area between the voice coil and the light board 210 and prevent them from becoming detached from each other. The other end of the voice coil is inserted into the magnetic air gap N, where it is secured to the housing 430 via a spring. As the magnetic field changes, the voice coil is forced to reciprocate along its axis. In other words, when the exciter 400 is an electromagnetic exciter, the voice coil constitutes the actuator 410, with the end of the actuator 410 facing away from its vibration output end located within the magnetic air gap N.

[0200] 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 light board 210. The reaction force of the electromagnetic force causes the larger exciter 400 to resonate at a lower frequency, vibrating the light board 210 through the connector 211. The exciter 400 housing has no fixed support but vibrates with the vibration of the driven light board 210. This is the biggest difference between the OLED screen exciter housing fixed to the bracket excitation method.

[0201] The magnetic member 451 is fixedly connected to the housing 430, and the other end of the damper 420 is connected to the housing 430 through the magnetic member 451. Specifically, the second connecting portion 4203 of the damper 420 is pressed against the magnetic member 451 via the pressure ring 440. For example, the second connecting 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 together, providing a simple and stable connection.

[0202] 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 housing 430 through the magnetic conductive member 451. Since the axial dimension of the actuator 410 is relatively large, the stacking and pressing of the pressure ring 440, the magnetic conductive member 451 and the housing 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 structure of the exciter 400 compact.

[0203] Specifically, the magnetic conductive member 451 of some embodiments of the present application includes a U-shaped body;

[0204] In some embodiments, the magnetic conductive member 451 includes a third connecting portion;

[0205] Two ends of the opening of the U-shaped body are bent and extended away from each other to form a third connecting portion, which is connected to the housing 430 .

[0206] Continue to refer to Figure 9Ventilation 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 the present embodiment does not limit the shape, number, or arrangement of the ventilation holes.

[0207] In some embodiments, the portion of the housing 430 that contacts the magnetic conductive member 451 is provided with ventilation holes, which can be opposite to the ventilation holes to further improve heat dissipation efficiency. The ventilation holes can be circular holes, and the embodiment of the application does not limit the shape, number, and arrangement of the ventilation holes.

[0208] Reference Figure 17 The display device 10 in some embodiments of the present application further includes a back plate 500. The back plate 500 is disposed on a side of the light board 210 facing away from the display panel 100, that is, the back plate 500 is disposed on the rear side of the light board 210 and is configured to support the light board 210 and the display panel 100. The back plate 500 can be made of aluminum alloy, steel, etc. to provide effective support.

[0209] The backplate 500 is provided with an opening 503. The actuator 410 of the exciter 400 passes through the opening 503 and connects to the light panel 210 at its joint. This configuration eliminates the need for a convex portion of the backplate 500, requiring only the opening 503. This simplifies the structure of the backplate 500, facilitates manufacturing, and reduces costs. Furthermore, the backplate 500 is not present at the location corresponding to the exciter 400, which helps reduce the thickness of the display device.

[0210] In some embodiments, continue to refer to Figure 17 , the back plate 500 includes a back plate body 501;

[0211] In some embodiments, continue to refer to Figure 17 , the back panel 500 includes a first side panel 502;

[0212] The back panel body 501 is configured to support the light panel 210 and the display panel 100; an opening 503 is provided in the back panel body 501. A 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. In other words, 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 disposed around the outside of the light panel 210 and the display panel 100.

[0213] Continue to refer to Figure 17In some embodiments of the present application, the display device 10 further includes a first adhesive member 505 , which may be double-sided tape, foam, or the like. The first adhesive member 505 is configured to connect the back panel 500 and the light panel 210 . A plurality of first adhesive members 505 may be provided so that the spacing between the light panel 210 and the back panel 500 at different locations is within a preset range. In other words, the vibration amplitude at different locations of the light panel 210 is relatively uniform, thereby preventing noise from being generated during the vibration of the light panel 210 .

[0214] Furthermore, the first adhesive member 505 can be provided to limit the position of the lamp board 210 , thereby preventing the lamp board 210 from being deformed and affecting the vibration and sound generation after the display device 10 is assembled.

[0215] In some embodiments, the first adhesive member 505 is arranged between two adjacent light boards 210. At this time, the first adhesive member 505 constitutes a connecting member, so that the two adjacent light boards 210 are spliced through the first adhesive member 505. The first adhesive member 505 is arranged in this way. While multiple light boards 210 are spliced, the light board 210 and the back panel 500 are connected, which is conducive to simplifying the assembly process of the display device 10 and improving production efficiency.

[0216] Continue to refer to Figure 17 In 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 .

[0217] 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, a matching hole is set on the outer shell 430, and a snap-in groove for snapping with the outer shell 430 is provided on the outer wall surface of the elastic pad 460. 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.

[0218] 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 the vibration of the actuator 400, the housing 430 can reciprocate relative to the back panel 500. In this case, the actuator 400 also drives the light panel 210 to vibrate 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.

[0219] Reference Figure 18In other embodiments, a damping block 470 is provided at the end of the housing 430. The damping block 470 can be double-sided tape, foam, etc. The damping block 470 can be connected to the side of the light board 210 facing the back panel 500. In this way, there is a large relative movement range between the housing 430 and the light board 210, which is conducive to realizing the exciter 400 driving the display panel 100 to vibrate in an inertial driving manner.

[0220] In this way, when the exciter 400 is working, the actuator 410 can generate a higher frequency vibration and drive the lamp board 210 to vibrate. Through the reaction force of the actuator 410, the shell 430 can drive the lamp board 210 to vibrate with a lower frequency vibration, that is, the shell 430 vibrates with the vibration of the lamp board 210, and the exciter 400 constitutes an inertial drive mode to drive the lamp board 210 to vibrate.

[0221] Continue to refer to Figure 17 and Figure 18 In some embodiments of the present application, the display panel 100 further includes an optical film assembly 110 , and the display film layer 120 is the display film layer. The optical film assembly 110 is disposed on a side of the display film layer 120 facing the light board 210 .

[0222] The optical film assembly can be of different types depending on the type of light emitted by the light board 210. For example, when the light board 210 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 board 210 where the light source is located.

[0223] When the light board 210 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 210 and is configured to evenly mix the light from multiple light boards 210, that is, to convert the lighting board into a surface light board. The fluorescent film 112 converts the light emitted by the light board 210 into white light. In this way, the color of the light emitted by the light board 210 is not limited, and the light board 210 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 210 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.

[0224] In some embodiments, an edge of the display panel 100 is sealed to an edge of the light board 210 , so that a sealed cavity M is formed between the display panel 100 and the light board 210 .

[0225] In some embodiments, the display panel 100 and the optical film assembly 110 may be bonded and fixed in pairs, for example, by using photosensitive adhesive (UV adhesive), foam, double-sided tape, etc.

[0226] That is, the display panel 100 and the optical film assembly 110 can be fixedly connected as a whole by bonding. At this time, the cavity M is formed between the optical film assembly 110 and the light board 210.

[0227] When the display panel 100 and the optical film assembly 110 are pressed together, there may be gas gaps between the display panel 100 and the brightness enhancing film 111, between the brightness enhancing film 111 and the fluorescent film 112, and between the fluorescent film 112 and the diffusion film 113. A cavity M is formed between the display panel 100 and the light board 210, and the gas gap is in a closed state.

[0228] Specifically, the display device 10 includes a second adhesive member 250 having adhesive properties. The second adhesive member 250 is a double-sided tape or foam. The second adhesive member 250 extends along the edge of the light board 210. The optical film assembly 110 and the light board 210 are bonded and fixed via the second adhesive member 250. That is, the diffuser film 113 and the light board 210 are bonded and fixed via the second adhesive member 250. In this way, a closed cavity M is formed between the optical film assembly 110 and the light board 210. The cavity M can be filled with air, nitrogen, etc.

[0229] The cavity M is closed, that is, the gas in the cavity M and the outside air do not circulate with each other. The cavity M can be equivalent to a damping spring, configured to transmit vibration between the light board 210 and the display panel 100 .

[0230] Combine Figure 19 The display device of some embodiments of the present application further includes a support member 300 , which can be made of silicone or rubber. A plurality of support members 300 can be provided, and the plurality of support members 300 are spaced apart and arranged between the display panel 100 and the light board 210 .

[0231] In some embodiments, there are problems in the vibration transmission process of the exciter 400. The thickness of the air gap between the display panel 100 and the light board 210 varies greatly due to material tolerances, assembly process tolerances, and its own gravity, resulting in the inability to ensure the consistency of the vibration transmission efficiency. The fit between the display panel 100 and the light board 210 causes vibration noise and abrasion.

[0232] To avoid the aforementioned risks, some embodiments of the present application include a support member 300 between the display panel 100 and the light board 210. The support member 300 has the following features: one side contacts the display panel 100, and the other side contacts the light board 210. One or both sides are connected to the contact positions through a mechanical structure or a fixed method such as adhesive. The support member 300 may include a buffer portion, which may be made of, for example, a high-rebound material or a combination of materials with a rebound function, such as silicone. The support member 300 ensures the stability of the air gap between the display panel 100 and the light board 210, preventing abnormal collision noise between the display panel 100 and the light board 210. Furthermore, the solid support member 300 improves the efficiency of vibration transmission from the light board 210 to the display panel 100.

[0233] By setting a support member 300 between the lamp board 210 and the diffusion film 113, the optical film assembly 110 and the lamp board 210 can be connected as a whole, that is, it can be equivalent to a single-layer screen, avoiding relative movement between the optical film assembly 110 and the lamp board 210 due to the large gap in the cavity M.

[0234] Furthermore, since the optical film assembly 110 converts and evens out the light generated by the light source of the lamp panel 210, even if the support member 300 is provided on the light-emitting side of the lamp panel 210, no shadow will be generated on the display panel 100, resulting in uneven brightness of the display panel 100. In this way, there are no restrictions on the shape and size of the support member 300, the contact area between the support member 300 and the diffusion film 113, etc. The cross-section of the support member 300 (the cross-section is perpendicular to the display device) can be rectangular or cylindrical, such as Figure 19 The cross-sectional shape of the support member 300 may also be conical (eg Figure 20 as shown), trapezoidal, dumbbell-shaped or other shapes.

[0235] In some embodiments, the support member 300 is interference-fitted between the display panel 100 and the light board 210, that is, the combination of the two ends of the support member 300 with the display panel 100 and the 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 light board 210.

[0236] like Figure 20As 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 light board 210; when the vibration output end of the exciter 400 in Figure c 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 light 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 light board 210, thereby improving the transmission efficiency of vibration from the light board 210 to the display panel 100.

[0237] In some embodiments, as Figure 20 As shown, the support member 300 can be connected to the light display 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 light board 210.

[0238] like Figure 21 As shown, a welding structure 320 is provided on one side of the support member 300 adjacent to the light board 210, and the support member 300 is fixed to the light board 210 via the welding structure 320. For example, a metal structure of a weldable material is injection molded, mechanically fitted, or bonded to the support member 300, and the welding structure 320 is fixed to the light board 210 by welding, thereby achieving the purpose of fixing the support member 300. This method can ensure the support member 300 is firmly installed and is conducive to mass automated assembly.

[0239] In addition, the material of the support member 300 can be, for example, an elastic material such as silicone rubber. However, elastic materials have the problem of changing their hardness due to temperature. When the internal temperature of the display device changes during operation, the hardness of the support member 300 will change, thereby affecting the support and vibration transmission optimization function of the support member 300. Figure 21 As shown, it can be optimized by a dual-material composite method, where the elastic material part ensures the vibration buffering effect, and the non-elastic material part, namely the welding structure 320, ensures that the vibration transmission effect does not change with temperature changes.

[0240] Combine Figure 22 The two ends of the support member 300 can be connected by negative pressure adsorption. For example, suction cup structures can be provided at both ends of the support member 300. The two ends of the support member 300 are fixedly connected to the light board 210 and the display panel 100 respectively through the suction cup structure, and the process is simple to implement.

[0241] like Figure 23As shown, 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. For example, one end of the support member 300 is connected to the 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. Thus, the support member 300 can be fixed using double-sided bonding or mechanical fixing, thereby achieving vibration linkage between the light board 210 and the display panel 100 and improving vibration transmission efficiency. However, double-sided bonding or mechanical fixing have the disadvantage of complex process implementation. Using a suction cup solution can improve the feasibility of the solution.

[0242] In some embodiments, combined Figure 24 A plurality of limiting portions 214 are provided on the lamp board 210 , and the limiting portions 214 are used to limit the support member 300 on the lamp board 210 .

[0243] In some embodiments, the limiting portion 214 is a recessed groove structure, and the opening of the recessed groove structure faces the display panel 100. Alternatively, the limiting portion 214 is a countersunk hole, which passes through the thickness direction of the light board 210 to facilitate processing. The cross-sectional area of the bottom side 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 snapped into 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.

[0244] The limiting portion 214 can be directly provided on the light board 210, such as Figure 24 as shown; or, as Figure 25 As shown, a limit member 215 is provided on the side of the 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 light board 210. The limit member 215 has a locking hole 2151 extending through its thickness. The light board 210 has a support portion 2152 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.

[0245] Reference Figure 26 The 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.

[0246] 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.

[0247] In some embodiments, as Figure 26 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.

[0248] 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.

[0249] 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 light board 210 when vibrating, thereby optimizing the vibration transmission efficiency of the support members 300 at various positions.

[0250] Combine Figure 27 In some embodiments, a plurality of independent light panels 210 are formed by splicing together a connecting member 211 , and the connecting member 211 may be in a strip shape.

[0251] In some embodiments, the connectors 211 may include two types: first-type connectors and second-type connectors. The first-type connectors are located on the side of the light board 210 facing away from the display panel 100, and the vibration output end of the actuator 400 may be connected to the first-type connectors. The second-type connectors are located on the side of the light board 210 facing the display panel 100, and may connect the multiple support members 300 into one piece. For example, the second-type connectors are integrally formed with the multiple support members 300.

[0252] In some embodiments, a large number of support members 300 are installed, which leads to complex process difficulties. To optimize this problem, some embodiments of the present application connect the support members 300 into one through a second type of connector, effectively reducing the difficulty of installing the support members 300.

[0253] Reference Figure 28 , in some embodiments, the light board 210 includes a board body;

[0254] Reference Figure 28 , in some embodiments, the light board 210 includes a light source;

[0255] The light source may be a mini-LED. A receiving cavity is provided at one end of the support member 300 facing the lamp board 210, 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 board body of the lamp board 210, which is conducive to improving assembly efficiency. This embodiment utilizes a 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 210, and improves the vibration transmission efficiency of the area between the lamp board 210 and the display panel 100.

[0256] like Figure 29 As shown, the support member 300 can be a multifunctional elastic diffusion plate bracket, that is, the support member 300 can replace the lens and diffusion plate 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 210, 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.

[0257] 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'.

[0258] 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.

[0259] 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.

[0260] Combine Figure 30 The display device of some embodiments of the present application may further include a sound channel isolation structure 340 , which is disposed on the light board 210 and configured to space adjacent exciters 400 .

[0261] 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.

[0262] 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 connector 211 of the above embodiment.

[0263] 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.

[0264] like Figure 30 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.

[0265] Combine Figure 31 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 driver 400 facing away from the light board 210. That is, the rear housing 700 is disposed behind the driver 400. The rear housing 700 may serve as the exterior housing of the display device. The controller, electrical connections, and the like of the display device may be disposed between the back panel 500 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.

[0266] Continue to refer to Figure 31 In some embodiments, the actuator 410 of the actuator 400 can also be connected to the rear housing 700, for example, by bonding, screwing, or clamping the actuator 410 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.

[0267] In some implementations, the exciter 400 further includes a vibration transfer structure 490, through which the actuator 410 excites the rear housing 700 to vibrate. One end of the vibration transfer structure 490 is connected to the sheet-like connection structure of the actuator 410. Viaducts are provided on the magnetic member 452 and the housing 430 of the exciter 400, and the other end of the vibration transfer structure 490 is connected to the rear housing 700 through the viaduct. Thus, when the exciter 400 is operating, there are forward and backward vibrations. The forward vibration is transmitted to the light board 210 through the actuator 410 and then to the display panel 100. The backward vibration is transmitted to the rear housing 700 through the vibration transfer structure 490, and the vibration of the rear housing 700 generates sound waves. Furthermore, since low-frequency sound has no directionality, it can be superimposed and enhanced with the sound emitted forward by the display device, thereby achieving the purpose of enhancing the intensity of low-frequency sound.

[0268] 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.

[0269] 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 31 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.

[0270] To solve this problem, combined Figure 32The exciter 400 is provided with a vibration stabilizer 40a, which is provided corresponding to the vibration transmission structure 490. The vibration stabilizer 40a is configured to balance the reaction force applied to the vibration transmission structure 490 by the rear housing 700, 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.

[0271] 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.

[0272] 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.

[0273] 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 32 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.

[0274] 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.

[0275] 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 33 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 .

[0276] The high-frequency filter structure 710 is elastic. Since high-frequency sound has a small amplitude, 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 500, causing resonance and abnormal vibration of the back plate 500. 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.

[0277] 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.

[0278] 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.

[0279] In addition, the rear shell 700 is located on the side of the back panel 500 away from the light board 210, and forms a cavity with the back panel 500 to accommodate the exciter 400. A buffer member 720 can be set between the rear shell 700 and the back panel 500 to prevent the high-frequency vibration of the back panel 500 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 500, thereby preventing the back panel 500 from resonating and causing abnormal vibration.

[0280] like Figure 33As shown, there is a gap between the vibration transfer structure 490 and the rear cover 700 in the thickness direction of the display device, and the vibration transfer structure 490 is connected to the rear cover 700 through the high-frequency filtering structure 710.

[0281] like Figure 34 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.

[0282] like Figure 35 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.

[0283] It should be noted here that Figure 31 as well as Figure 35 In the illustrated structure, the exciter 400 is fixed to the light board 210 via a damping block 470; Figure 31 as well as Figure 35 In the structure shown, the actuator 400 can also be Figure 17 As shown, it is fixed to the back plate 500 via an elastic pad 460 and a fixing pin 480 .

[0284] The following is combined with Figures 36 to 41 Describe another connection form between the light board 210 and the back board 500, and the arrangement form of each channel area in the embodiment of the present application.

[0285] Combine Figure 36, multiple lamp boards 210 are respectively connected to the back panel 500, so that the multiple lamp boards 210 are relatively independent. That is, the multiple lamp boards 210 are arranged together to form a complete light-emitting panel, but the multiple lamp boards 210 are independent of each other. When one of the lamp boards 210 provided with the exciter 400 vibrates, it will not affect the other lamp boards 210, that is, the other lamp boards 210 will not vibrate. Therefore, the exciter 400 drives some lamp boards 210 to vibrate according to the image information, which can reduce the vibration mass and vibration area, reduce energy attenuation, improve the reliability of the lamp board 210 and the display panel, avoid the problem of damage to the lamp board 210 or wear of the optical film, and improve the display quality of the display device.

[0286] The back plate 500 can be square in shape and supports the light board 210 on the side of the light board 210 facing away from the display panel 100. The actuator 400 and the back plate 500 can be located on the same side of the light board 210, with a smaller gap between them. The actuator 400 can be located on the side of the back plate 500 facing away from the light board 210 and connected to the light board 210 through the back plate 500.

[0287] Among them, the board surface opposite to the back panel 500 and the light board 210 can be a planar structure. Since the exciter 400 directly passes through the back panel 500 and is connected to the light board 210, there is no need to reserve a gap between the back panel 500 and the light board 210 to set up a sounding board, so the thickness of the entire machine can be reduced.

[0288] There is a gap between the back panel 500 and the light panels 210. Adhesives are provided between the back panel 500 and the light panels 210 to improve the installation stability of the light panels 210. The adhesives can be double-sided adhesive strips of a certain thickness. Each light panel 210 is bonded to the back panel 500 via the adhesives. Since the back panel 500 is a complete unit, the adhesives secure each light panel 210 to the back panel 500. This ensures that the multiple light panels 210 are precisely positioned relative to each other and prevents interference between individual light panels 210 and other light panels 210 during vibration.

[0289] In some embodiments, the adhesive member is located between two adjacent light panels 210 , and the adhesive member forms a connecting member 211 .

[0290] Continue to refer to Figure 36 The vibration output end of the actuator 400 is bonded to the light board 210 via the third adhesive member 401, and the connection method is simple and reliable. The third adhesive member 401 can be a double-sided tape.

[0291] In the embodiment of the present application, the light board 210 can also be connected to the back panel 500 by other means, including but not limited to snaps, threaded fasteners, support plates, elastic blocks, etc.

[0292] For example, the light board 210 and the back board 500 may be respectively provided with buckles that are buckled with each other. When the light board 210 and the back board 500 are assembled, the buckles on the two are buckled with each other.

[0293] Illustratively, mounting holes are respectively provided on the light board 210 and the back board 500 , and threaded fasteners can be used from one side of the back board to pass through the mounting holes on the light board 210 and the back board 500 to connect the two.

[0294] Exemplarily, the light board 210 and the back board 500 may be connected via a support plate, which is elastic, and two ends of the support plate are respectively connected to the light board 210 and the back board 500 via screws or bonded via double-sided tape.

[0295] Exemplarily, the lamp board 210 and the back panel 500 can be connected by an elastic block, which can be a cylindrical, conical or other structure. The two ends of the elastic block can respectively abut the lamp board 210 and the back panel 500, and the two ends of the elastic block can respectively bond to the lamp board 210 and the back panel 500.

[0296] The exciter 400 can drive the light board 210 to generate multiple sound zones. Different sound zones can correspond to different sound channels, so that the display device can have a multi-channel sound effect.

[0297] In some embodiments, continue to refer to Figure 36 There are multiple actuators 400, each connected to a portion of the light panels 210. The actuators 400 are configured to drive a portion of the light panels 210 to vibrate based on image information from the display panel 100. When the portion of the light panels 210 vibrates and produces sound, and the vibration is transmitted to the display panel 100, the display panel 100 can vibrate locally to produce sound, thereby improving the accuracy and sensitivity of the sound location. The sound location on the display device can change as the image changes, achieving the effect of sound tracking the image.

[0298] In some embodiments, multiple light panels 210 are arranged in sequence along the length of the display panel 100, forming multiple sound-emitting zones. These zones are symmetrically arranged about the central axis of the display device. The multiple light panels 210 independently vibrate and generate sound, allowing the zones to be relatively independent, more accurately achieving the sound-tracking effect.

[0299] It can be understood that the exciter 400 can be set on each light board 210, or the exciter 400 can be set on some of the light boards 210. The specific setting can be based on the number of sound emission zones to be formed. The more sound emission zones the display device has, the more light boards 210 on which the exciter 400 can be set.

[0300] In some embodiments, reference Figure 37The multiple light boards 210 may include a first light board 210a and a second light board 210b. The first light board 210a is connected to at least one exciter 400, while the second light board 210b is not provided with an exciter 400. Each sound emission zone corresponds to at least one first light board 210a. Different sound emission zones are arranged adjacent to each other; alternatively, at least one second light board 210b is provided between different sound emission zones.

[0301] It can be understood that the exciter 400 directly drives the first lamp board 210a to vibrate, and since the first lamp board 210a and the second lamp board 210b are independent of each other, the vibration of the first lamp board 210a will not affect the second lamp board 210b. The area of the vibration area formed by each first lamp board 210a is small, which can improve the vibration sensitivity and high-frequency ductility, and improve the transmission performance of the display panel 100.

[0302] In addition, since the exciter 400 drives the light board 210 to vibrate without providing a sound-generating plate structure, the thickness of the entire display device can be reduced, and the production cost of the product can be reduced.

[0303] For example, the plurality of light panels 210 can be divided into two rows arranged in an upper and lower arrangement. The lower row comprises a plurality of second light panels 210b, and the corresponding display panel 100 can produce bass sounds. The upper row comprises a plurality of first light panels 210a or a combination of first and second light panels 210a, 210b, for forming sound zones for each channel. The second light panels 210b in the lower row can form a bass zone 206 for producing low-frequency sounds.

[0304] Specific examples of different numbers of vocalization zones are described in detail below.

[0305] Please continue to refer to Figure 37 In a first possible implementation, the multiple sound zones may include a left main channel zone 201 and a right main channel zone 202. The left main channel zone 201 and the right main channel zone 202 are symmetrically arranged with respect to the central axis of the display device. Each of the left main channel zone 201 and the right main channel zone 202 corresponds to at least two first light panels 210a. A second light panel 210b is disposed between the left main channel zone 201 and the right main channel zone 202.

[0306] It is understood that two first light panels 210a can be provided in the left main channel area 201, and two first light panels 210a can be provided in the right main channel area 202. Each first light panel 210a is provided with an actuator 400, and each actuator 400 independently drives each first light panel 210a to vibrate. This prevents the vibrations of the left main channel area 201 and the right main channel area 202 from affecting each other.

[0307] Please refer to Figure 38 In a second possible implementation, the multiple sound emission zones may include a left main channel zone 201, a right main channel zone 202, and a center channel zone 203. The left main channel zone 201, the center channel zone 203, and the right main channel zone 202 are arranged adjacent to each other along the length of the display panel 100. Each of the left main channel zone 201, the center channel zone 203, and the right main channel zone 202 corresponds to at least two first light panels 210a. A second light panel 210b is provided on the side of the left main channel zone 201 facing away from the center channel zone 203. A second light panel 210b is provided on the side of the right main channel zone 202 facing away from the center channel zone 203.

[0308] It's understood that two first light panels 210a can be provided for the left main channel area 201, two first light panels 210a can be provided for the right main channel area 202, and two first light panels 210a can be provided for the center channel area 203. Each first light panel 210a is equipped with an actuator 400, which independently drives the vibration of each first light panel 210a. This prevents the vibrations of the left main channel area 201, right main channel area 202, and center channel area 203 from interfering with each other.

[0309] Please refer to Figure 39 In a third possible implementation, the multiple sound emission zones may include a left main channel zone 201, a right main channel zone 202, a center channel zone 203, a left surround channel zone 204, and a right surround channel zone 205. The left surround channel zone 204, the left main channel zone 201, the center channel zone 203, the right main channel zone 202, and the right surround channel zone 205 are arranged adjacent to each other in sequence along the length of the display panel 100. The second sound emission panel is disposed below the sound emission zone.

[0310] It is understandable that the difference from the previous implementation method is the addition of a left surround channel area 204 and a right surround channel area 205. The left surround channel area 204 can be provided with a corresponding first light panel 210a, and the right surround channel area 205 can be provided with a corresponding first light panel 210a. Each first light panel 210a is provided with an exciter 400, and each exciter 400 independently drives each first light panel 210a to vibrate. This prevents the vibrations of the left main channel area 201, the right main channel area 202, the center channel area 203, the left surround channel area 204, and the right surround channel area 205 from interfering with each other. The left and right channels and the surround channels can all emit sound in front of the display panel 100 of the display device, achieving a better sound effect.

[0311] Please refer to Figure 40In a fourth possible implementation, the multiple sound zones may include a left main channel zone 201, a right main channel zone 202, a left surround channel zone 204, and a right surround channel zone 205. This fourth implementation differs from the third implementation in that the center channel zone 203 is not provided. The specific layout of the light panel 210 for this implementation will not be further described in this embodiment of the present application.

[0312] It should be noted that, in the embodiment of the present application, more number of sound emission zones can be provided, and other arrangements of sound emission zones can be adopted, as long as the first lamp panels 210a corresponding to the respective sound emission zones are independent of each other and are directly driven to vibrate by different exciters 400. Each lamp panel 210 can be provided with one, two or more exciters 400, and the exciters 400 can be arranged at intervals in the horizontal direction, or, please refer to Figure 41 The exciters 400 may be arranged at intervals along the vertical direction, and this embodiment of the present application does not specifically limit this.

[0313] In some embodiments, reference Figure 42 The display device 10 may further include a sounding board 212. Specifically, the sounding board 212 may be attached to the side of the light board 210 facing away from the display panel 100. Furthermore, the sounding board 212 may be located at the junction of two adjacent light boards 210, with the vibration output end of the actuator 400 connected to the sounding board 212. In other words, the two adjacent light boards 210 are connected via the sounding board 212, and then the actuator 400 drives the sounding board 212 to vibrate, thereby driving the two adjacent light boards 210 to vibrate together.

[0314] In some embodiments, reference Figure 42 The display device 10 further includes a fourth adhesive member 260. Specifically, the fourth adhesive member 260 is disposed between the joint of the light board 210 and the sound board 212 to connect the light board 210 and the sound board 212. The fourth adhesive member 260 may be double-sided tape. This allows for a simple and reliable connection between the light board 210 and the sound board 212 at a low cost.

[0315] In some embodiments, the fourth adhesive member 260 may have a certain elasticity to ensure that the light panels 210 on both sides of the joint have a certain degree of displacement in the front-to-back direction to achieve vibration.

[0316] Since the area of the sounding board 212 is much smaller than the area of the display screen and the light board 210, the exciter 400 can further reduce the vibration area and vibration mass while being able to drive at least two light boards 210 to vibrate, thereby improving the vibration sensitivity and high-frequency ductility. Moreover, connecting the vibration output end of the exciter 400 to the sounding board 212 can reduce the requirements for the installation accuracy of the exciter 400 compared to directly connecting the exciter 400 to the light board 210.

[0317] In addition, compared with the solution of constructing the area of the sounding board 212 to be the same as the area of the display screen so that the sounding board 212 can connect to all the light boards 210, since the reinforcement of this embodiment only needs to cover the splicing parts of the light boards 210, the amount of double-sided tape consumed to connect the sounding board 212 and all the light boards 210 can be reduced, the process difficulty can be reduced, the assembly consistency of multiple light boards 210 can be improved, and mass production can be facilitated.

[0318] In some embodiments, the sounding plate 212 can be a honeycomb plate, that is, the interior of the sounding plate 212 has hexagonal honeycomb holes, and the honeycomb holes can be a single layer or can be stacked in multiple layers. In this way, the sounding plate 212 has a high structural strength and a light weight, which is conducive to transferring the vibration energy of the exciter 400 to the light board 210.

[0319] The thickness of the sounding plate 212 can be 1 mm to 4 mm, such as 1 mm to 2 mm, 2 mm to 3 mm, or 3 mm to 4 mm. For example, the thickness of the sounding plate 212 can be 1 mm, 2 mm, 3 mm, or 4 mm. Of course, this application does not impose any limitation on this. The thickness of the sounding plate 212 can be reasonably selected within the above range according to actual needs.

[0320] In some embodiments, the sound plate 212 is relative to the display device 10 along the first direction 9 (attached Figure 42 The sounding plates 212 are symmetrically distributed about the centerline of the display device 10 (in the left and right directions). For example, when there is only one sounding plate 212, it is located on the centerline of the display device 10 along the first direction and is symmetrical about the centerline. When there are three sounding plates 212, the middle sounding plate 212 is located on the centerline of the display device 10 along the first direction and is symmetrical about the centerline, and the other two sounding plates 212 are symmetrically arranged on either side of the centerline. In this way, the sounding plates 212 can evenly transmit vibration energy to the light panels 210 on both sides of the centerline of the display device 10, thereby improving the sound effect of the center portion of the display device 10.

[0321] Continue to refer to Figure 42 The multiple joints formed by the multiple lamp boards 210, except for the joints connected to the exciter 400, are fixedly connected to the back plate 500. In this way, except for the lamp board 210 connected to the sound board 212, the other lamp boards 210 are fixedly connected to the back plate 500.

[0322] In some embodiments, the back panel 500 and the light panel 210 are connected at their joints by a fifth adhesive member 270, which can be double-sided tape or foam. The fifth adhesive member 270 extends along the edge of the light panel 210. This allows for a simple and reliable connection between the light panel 210 and the back panel 500 at a low cost.

[0323] In this way, on the one hand, the back panel 500 can be used to isolate the vibration transmission between the lamp boards 210 in the central area and the lamp boards 210 in the surrounding areas, ensuring that only the lamp boards 210 in the central area vibrate, enhancing the sensitivity of the vibration process of several lamp boards 210 in the central area, and thereby improving the central sound effect of the display device 10; on the other hand, the back panel 500 can be used to provide installation support for the overall structure composed of multiple lamp boards 210, ensuring the structural stability of the backlight assembly 200 during the vibration process.

[0324] Continuing with reference to FIG42 , the area of the back plate 500 facing the plurality of sound-generating plates 212 protrudes along the thickness direction of the display panel 100 and away from the display panel 100 to form a convex bump 504. The convex bump 504 provides space for the sound-generating plates 212 and the exciter 400. This prevents interference between the sound-generating plates 212 and the back plate 500 when the exciter 400 drives the sound-generating plates 212 to vibrate.

[0325] The exciter 400 is disposed through the convex bulge 504. For example, the convex bulge 504 may be provided with a through-hole 506, and the exciter 400 may be disposed through the convex bulge 504 via the through-hole 506. Since the exciter 400 has a certain thickness in the front-to-back direction of the display device 10, the provision of the convex bulge 504 facilitates placement of the relevant structures of the exciter 400 inside the back plate 500 and prevents the back plate 500 from affecting the vibration of the exciter 400. In addition, it avoids the display device 10 being excessively large due to thickening the entire area of the back plate 500, thereby facilitating a compact structure.

[0326] In some embodiments, reference Figures 43 to 46 There are multiple sounding boards 212, each corresponding to the joint between the sounding board 212 and the light board 210. The exciter 400 is provided on at least some of the multiple sounding boards 212. In other words, the exciter 400 may be provided on each sounding board 212, or only on some of the sounding boards 212. Furthermore, the exciters 400 are symmetrically distributed about the center line of the display device 10 along the first direction (the left-right direction in the drawing).

[0327] For example Figure 43 As shown, three sounding plates 212 are provided, one at each of three adjacent joints. The middle sounding plate 212 is located on the centerline of the display panel 100 along the first direction, while the other two sounding plates 212 are located on either side of the centerline. Two exciters 400 may be provided, one on each of the two sounding plates 212 on either side of the centerline. In this way, the two exciters 400 can drive the four light panels 210 in the middle region to vibrate simultaneously, thereby generating sound in the middle of the display panel 100.

[0328] For example Figure 44As shown, three sounding panels 212 are provided, one located at each of three adjacent joints. The middle sounding panel 212 is located on the centerline of the display panel 100 along the first direction, while the other two sounding panels 212 are located on either side of the centerline. A single exciter 400 can be provided on the sounding panel 212 located on the centerline. This allows the exciter 400 to drive the two light panels 210 in the middle region to vibrate simultaneously, thereby generating sound in the middle of the display panel 100.

[0329] In the attached Figure 43 and Figure 44 In the structure shown, in some embodiments, the width of the sounding plate 212 provided with the exciter 400 can be constructed to be larger than the width of the sounding plate 212 without the exciter 400, that is, the sounding plate 212 without the exciter 400 only needs to ensure that the two lamp boards 210 can be connected, while the sounding plate 212 provided with the exciter 400 can cover a larger area of the lamp board 210 to ensure that the vibration energy is better transmitted from the sounding plate 212 to the lamp board 210.

[0330] For example Figure 45 As shown, there is one sounding board 212, which is located on the center line of the display panel 100 along the first direction, and there can be one exciter 400. In this way, the exciter 400 can drive the two light boards 210 in the middle area to vibrate simultaneously, so as to realize the sound generation in the middle of the display panel 100. Figure 46 A plurality of exciters 400 may be provided, and the plurality of exciters 400 are spaced apart along the length direction of the sounding plate 212 , wherein the length direction of the sounding plate 212 is perpendicular to the first direction.

[0331] It can be understood that since the sounding board 212 only needs to cover the joint between two adjacent light boards 210, the width of the sounding board 212 is smaller and the area of the sounding board 212 is smaller. In this way, the connection area between the sounding board 212 and the light board 210 is smaller, and the connection structures such as double-sided tape required for the sounding board 212 and the light board 210 to achieve connection are also less, which can reduce the process difficulty and reduce production costs.

[0332] In some embodiments, reference Figure 47 and Figure 48 There is one sounding plate 212, and the sounding plate 212 covers multiple joints at the same time. There is at least one exciter 400, and the at least one exciter 400 is symmetrically distributed about the center line of the sounding plate 212 in the first direction.

[0333] For example Figure 47As shown, there is only one sounding board 212, which can cover two or more joints at the same time. The sounding board 212 also covers the light board 210 between two adjacent joints. In this way, the consistency of the vibration movements of the multiple light boards 210 in the central area of the display device 10 can be further improved.

[0334] In some embodiments, each sounding board 212 is provided with two exciters 400, and the two exciters 400 are spaced apart along a first direction, or the two exciters 400 are spaced apart along a second direction, and the first direction and the second direction are perpendicular to each other. Figure 48 As shown, the two exciters 400 are arranged side by side and spaced apart on the sounding plate 212 along the first direction, and the two exciters 400 are symmetrically distributed about the center line of the sounding plate 212 in the first direction.

[0335] For example Figure 49 As shown, two exciters 400 are arranged on the sounding plate 212 at intervals along the vertical direction, and both exciters 400 are located on the center line of the sounding plate 212 in the first direction. The vertical direction is perpendicular to the first direction.

[0336] Thus, by providing two exciters 400 on one sounding board 212, the vibration energy of the two exciters 400 can be further enhanced, thereby improving the sound effect of the middle part of the display device 10. In addition, the vibration energy transmission of the light boards 210 on both sides of the center line of the display device 10 is more balanced.

[0337] Combine Figures 43 to 49 , considering that when the exciter 400 is arranged in the middle area of the display device 10, only the middle sound can be achieved, in order to improve the stereo effect of the sound of the display device 10, in this embodiment, the display device 10 may also be provided with a speaker, and the speaker includes a tweeter 1001, a woofer 1003 and a mid-range speaker 1002. The number and arrangement position of the tweeter 1001, the woofer 1003 and the mid-range speaker 1002 can be reasonably set according to actual needs. In this way, by matching the vibration sound of the middle area of the display panel 100 with the speaker (including the tweeter 1001, the woofer 1003 and the mid-range speaker 1002), the sound effect of the display device 10 can be further improved, thereby improving the user experience.

[0338] The structure of another actuator in the embodiment of the present application is described below with reference to the accompanying drawings.

[0339] In some embodiments, combined Figure 50 , the exciter 400 includes a coil assembly 402;

[0340] In some embodiments, combined Figure 50 , the actuator 400 includes a magnetic assembly 450;

[0341] In some embodiments, the coil assembly 402 is planar. Here, the planar shape of the coil assembly 402 means that when the coil assembly is wound multiple times, the multiple turns are located in the same plane, rather than being stacked. The coil assembly 402 is located on the side of the light board 210 facing away from the display panel 100. The magnetic assembly 450 is located on the back panel 500 and faces the coil assembly 402. The magnetic assembly 450 is used to generate a magnetic field. The coil assembly 402 and the magnetic assembly 450 are configured to drive the display panel 100 to vibrate and produce sound through their own electromagnetic induction.

[0342] For example, after the magnetic component 450 generates a magnetic field, a continuously changing current is input into the coil component 402, so that the force acting on the coil component 402 in the magnetic field generated by the magnetic component 450 continuously changes, thereby generating vibration, that is, the coil component 402 constitutes the actuator of the exciter 400.

[0343] The planar coil component 402 is arranged on the lamp board 210, and the magnetic component 450 is arranged on the back panel 500. After being energized, the coil component 402 can be subjected to a constantly changing force in the magnetic field generated by the magnetic component 450, thereby driving the display panel 100 to vibrate through the lamp board 210 and the support member 300 in turn, causing the display panel 100 to make a sound. Compared with the solution in which the electromagnetic exciter 400 for transmission is arranged at a certain point of the lamp board 210 to form bending wave vibration, the planar coil assembly 402 has a larger coverage area of the lamp board 210, and the driving force generated is uniform on the entire plane of the lamp board 210, that is, the coil assembly 402 drives the lamp board 210 in a surface manner. On the one hand, the vibration of the lamp board 210 can be made into a plane displacement vibration (that is, the lamp board 210 is displaced back and forth as a whole, rather than a certain part of the lamp board 210 forming an edge), that is, a piston-type vibration, which can significantly improve the transmission efficiency of the vibration energy and reduce attenuation. On the other hand, the display panel 100 is subjected to uniform force, so that the pressure exerted on the screen is much smaller than that of point drive, and can withstand higher power drive, thereby further improving the sound effect of the display panel 100.

[0344] It can be understood that since the planar coil component 402 has a larger distribution range on the lamp board 210, the heat is evenly distributed during the operation of the coil component 402, the temperature of each part of the lamp board 210 is more balanced, and the power per unit area can be reduced by 2 orders of magnitude compared with the electromagnetic exciter 400, which can avoid the temperature concentration point when using the electromagnetic exciter affecting the local luminous brightness, color, etc. of the backlight component 200.

[0345] Furthermore, the planar shape of coil assembly 402 reduces the space occupied by actuator 400, making the backplate 500 structure more flat and reducing protrusions. This further satisfies the pursuit of a thinner and lighter display device 10, facilitating a large, ultra-thin design for the overall appearance of display device 10. Furthermore, the planar shape of coil assembly 402 is ultra-thin, with no inductive reactance or back electromotive force, making it easier to integrate with a power amplifier. Compared to point drivers, this provides better high-frequency response, lower distortion, and improved sound diffusion and sound field effects.

[0346] In some embodiments, combined Figures 50 to 54 The coil assembly 402 may include a conductive coil. The conductive coil may be in a regular annular shape, such as a square or circular shape, or may be in an irregular shape. The conductive coil is disposed on the lamp board 210. For example, the conductive coil may be fixed to the lamp board 210 by bonding, or the conductive coil may be integrally formed with the lamp board 210. The structure of the conductive coil may be appropriately selected based on actual needs.

[0347] Magnetic assembly 450 includes a magnetic member 452, surrounded by a conductive coil. The number of magnetic members 452 can be appropriately set according to actual needs. Magnetic member 452 can be a permanent magnet, with its magnetic poles perpendicular to backplate 500. The magnetic field generated by magnetic member 452 can be referred to as a static magnetic field. Magnetic member 452 can be made of a ferromagnetic material, a soft magnetic material, or other materials familiar to those skilled in the art. Both the coil and magnetic member 452 can be of any type familiar to those skilled in the art and are not limited in this embodiment.

[0348] In this way, through the cooperation between the conductive coil and the magnetic part 452, when a changing current is passed through the conductive coil, the conductive coil can be subjected to a force with a continuously changing direction in the magnetic field generated by the magnetic part 452, thereby achieving the purpose of driving the light board 210 to vibrate.

[0349] In some embodiments, combined Figure 50 The magnetic component 450 may further include a magnetic conductive part 451, which may be a magnetic conductive plate. The magnetic conductive part 451 is connected to the back plate 500, and the magnetic part 452 is fixedly arranged on the magnetic conductive part 451. The magnetic conductive part 451 is conducive to ensuring that adjacent magnetic parts 452 form a closed magnetic circuit, and the magnetic conductive part 451 can provide installation support for the magnetic part 452.

[0350] In some embodiments, continue to refer to Figure 50The back plate 500 may be provided with an opening 503, and the magnetic conductive member 451 may be disposed at the opening 503. The magnetic conductive member 451 may also cover the opening 503. The magnetic conductive member 451 may be fixedly connected to the back plate 500, for example, by bolting or clamping. Thus, disposing the magnetic conductive member 451 at the opening 503 of the back plate 500 facilitates heat dissipation of the magnetic conductive member 451. Furthermore, the connection between the magnetic conductive member 451 and the back plate 500 is relatively simple and easy to implement.

[0351] In some embodiments, reference Figure 51 The magnetic conductive member 451 can be integrally formed with the back plate 500 , that is, the magnetic member 452 can be directly disposed on the back plate 500 . This can further simplify the overall structure of the display device 10 and reduce costs.

[0352] Combine Figure 50 In some embodiments, multiple magnetic members 452 may be provided to enhance magnetic field strength. Multiple magnetic members 452 are spaced apart on the back plate 500 along a first direction (e.g., left-right direction in the figure). Each magnetic member 452 is strip-shaped. Multiple magnetic members 452 form a plurality of placement gaps. Adjacent magnetic members 452 have opposite magnetic properties and form a closed magnetic circuit. At least one side edge of the conductive coil sequentially passes through the plurality of placement gaps to surround the plurality of magnetic members 452.

[0353] Continue to refer to Figure 52, describing the winding method of the conductive coil, wherein the plurality of magnetic members 452 include a first magnetic member 452a, a second magnetic member 452b, a third magnetic member 452c, a fourth magnetic member 452d, and a fifth magnetic member 452e arranged in sequence along the first direction, a first placement gap is provided between the first magnetic member 452a and the second magnetic member 452b, a second placement gap is provided between the second magnetic member 452b and the third magnetic member 452c, a third placement gap is provided between the third magnetic member 452c and the fourth magnetic member 452d, and a fourth placement gap is provided between the fourth magnetic member 452d and the fifth magnetic member 452e. The conductive coil is away from the first magnetic member 452a and the second magnetic member 452b. The conductive coil is wound around one side of the magnetic member 452b and the upper end of the first magnetic member 452, extending downward to the lower end of the first magnetic member 452a, then turning into the first placement gap and extending upward, turning into the second placement gap from the upper end of the second magnetic member 452b and extending downward, turning into the third placement gap from the lower end of the third magnetic member 452c and extending upward, passing through the fourth placement gap, reaching the lower end of the fifth magnetic member 452e, and then extending upward from the side of the fifth magnetic member 452e facing away from the fourth magnetic member 452d to the upper end of the fifth magnetic member 452e, and then extending roughly along the first direction to the starting position, starting the second turn of winding until the conductive coil disk has the target number of turns. In this way, the length of the conductive coil in the magnetic field can be increased as much as possible and cover a sufficient area of the lamp board 210, thereby providing sufficient driving force for the lamp board 210 to achieve vibration. Of course, the present application does not limit the winding method of the conductive coil.

[0354] In addition, reference Figure 52 To further increase the length of the conductive coil, the magnetic members 452 can be divided into multiple groups. These groups are spaced apart along a first direction, and each group can include multiple magnetic members 452 spaced apart along a second direction, with the first and second directions being perpendicular to each other. This ensures that the magnetic poles of the magnetic members 452 in each group are arranged in the same direction, ensuring that the forces exerted by the magnetic members 452 on the same side of the coil in each group are in the same direction. This maximizes the vibration energy provided by the exciter 400 to the light panel 210, ensuring effective sound generation.

[0355] In some embodiments, multiple magnetic members 452 may also be arranged at intervals along the circumference of a reference circle, with the length direction of each magnetic member 452 being parallel to the radial direction of the reference circle corresponding to the position of the magnetic member 452. The reference circle may refer to the circumference of the same position of multiple magnetic members 452, such as the radial inner end, the radial outer end, or any other position. At this time, there is a placement gap between any two adjacent magnetic members 452, and the conductive coil passes through all the placement gaps in sequence to form a surround of the multiple magnetic members 452. In this way, by adjusting the radius of the reference circle and adjusting the position of the magnetic member 452 accordingly, the coverage range of the exciter 400 can be adjusted, and the exciter 400 can evenly transmit vibration energy to the surroundings, which is conducive to better promoting the vibration and sound generation of the display panel 100.

[0356] It is understood that the conductive coil generates a certain amount of heat during prolonged operation. To improve the safety of the entire device, heat dissipation holes can be provided on the magnetic conductive member 451. The heat dissipation holes can be in any shape, such as square, oval, or trapezoidal. The number and size of the heat dissipation holes can also be adjusted according to actual conditions and are not limited in this embodiment. The heat dissipation holes can dissipate the heat generated by the conductive coil into the air, preventing the conductive coil from overheating, and thus ensuring the image quality of the display device 10.

[0357] Taking into account that the magnetic part 452 may be positionally offset in the process of generating a magnetic field, in order to avoid fixing the position of the magnetic part 452 and ensure the normal operation of the exciter 400. In some embodiments, the magnetic assembly 450 may further include a positioning plate (not shown). Specifically, the positioning plate is arranged on the side of the magnetic conductive part 451 where the magnetic part 452 is arranged, and a positioning hole is provided on the positioning plate. The positioning hole passes through the opposite sides of the positioning plate. The magnetic part 452 is clamped in the positioning hole, and one side of the magnetic part 452 abuts against the side wall of the magnetic conductive part 451. It can be understood that by adding a positioning plate to better fix the position of the magnetic part 452, the overall stability is further improved.

[0358] In some embodiments, the positioning plate and the magnetic member 451 can be connected by a detachable connection method or a fixed connection method. For example, bolts, clips or hanging connections are used. Specifically, the embodiments of the present application are not too restrictive here. It should be noted that the positioning plate can be made of non-magnetic material and is fixed on the magnetic member 451 to limit the magnetic member 452 and maintain the relative position accuracy of the magnetic member 452 and the reliability of the long-term vibration stress state.

[0359] In some embodiments, the board body of the light board 210 may include a layered arrangement of substrates;

[0360] In some embodiments, the board body of the light board 210 may include a first circuit layer arranged in a stacked manner;

[0361] In some embodiments, the board body of the light board 210 may include a second circuit layer arranged in a stacked manner.

[0362] The base layer can be a non-metallic layer, for example, a plastic component, or it can be made of other materials. The base layer has a first surface and a second surface, with the first surface facing the display panel 100 and the second surface facing away from the display panel 100. A first circuit layer is provided on the first surface, and an array of light sources is provided on the first circuit layer, which is used to project light toward the display panel 100. A second circuit layer is provided on the second surface, and the coil assembly 402 can be arranged on the second circuit layer.

[0363] In some embodiments, the base layer, the first circuit layer, and the second circuit layer can be an integral structure, collectively comprising the body of the light board 210. In this case, the board body 230 is a double-sided copper-clad circuit substrate, with the first and second circuit layers both being copper foil circuits printed on the substrate. In other words, in this embodiment, the coil assembly 402 is formed from the metal layer on the second side of the double-sided copper-clad circuit substrate through an etching or printing process. The coil assembly 402 is secured to the light board 210 without any intermediate connectors. The coil assembly 402 serves as both a part of the light board 210 and a part of the actuator 400. In this way, integrating the coil assembly of the light board 210 and the actuator 400 into one structure helps reduce the overall thickness of the backlight assembly 200 and the actuator 400, thereby contributing to a slimmer design for the display device 10. The light sources are LEDs, arranged in an array on the first circuit layer. Furthermore, the light sources can be covered with a transparent encapsulation to better protect them and prevent them from being squeezed or abraded by other structures when the light board 210 vibrates.

[0364] It should be noted that the conductive coil acts as a pure resistive load, which can effectively improve the high-frequency response of the electromagnetic excitation unit, thereby expanding the frequency bandwidth of the exciter 400.

[0365] The substrate may be made of a conductive foil circuit board or film, wherein the conductive foil includes but is not limited to metal, copper, copper-plated silver, silver paste, carbon, indium tin oxide (ITO), etc.

[0366] In some embodiments, reference Figure 53, there are a plurality of light boards 210 arranged in an array, and the exciter 400 is provided on at least part of the plurality of light boards 210. That is to say, among the plurality of light boards 210, only part of the light boards 210 provided with the exciter 400 can vibrate, and the remaining light boards 210 can be fixed. For example, the light boards 210 not provided with the exciter 400 can be directly fixed to the back panel 500. The light board 210 not provided with the exciter 400 can be a non-double-sided copper clad substrate. The exciter 400 is suitable for driving any one of at least part of the light boards 210 to vibrate independently, or the exciter 400 is configured to drive at least part of the light boards 210 to vibrate synchronously. In other words, the plurality of light boards 210 provided with the exciter 400 can vibrate independently of each other, or can vibrate synchronously. This is conducive to the display device 10 outputting different sound effects to enhance the user experience.

[0367] In addition, in some embodiments, the lamp board 210 provided with the exciter 400 can drive the lamp board 210 not provided with the exciter 400 to vibrate synchronously, so as to achieve synchronous vibration of all the lamp boards 210, thereby driving the display panel 100 to vibrate, and also achieving the vibration and sound of the display panel 100.

[0368] In addition, reference Figure 54 Considering that the manufacturing process and manufacturing cost of light boards 210 equipped with conductive coils are the same as those without, in this embodiment, the multiple light boards 210 arranged in an array can all be equipped with coil assemblies 402. Furthermore, to achieve vibration in only some of the multiple light boards 210, the number of magnetic assemblies 450 can be reduced to less than the number of coil assemblies 402. The magnetic assemblies 450 and the coil assemblies 402 on only some of the light boards 210 together form the exciter 400. In this way, without increasing the structural complexity, the display device 10 can still output different sound effects, thereby enhancing the user experience.

[0369] Of course, in the case where the plurality of lamp boards 210 all use lamp boards 210 with conductive coils, each lamp board 210 may be equipped with a corresponding magnetic component 450, for example Figure 55 As shown, the light board 210 is divided into five groups arranged side by side along the first direction, and the five groups correspond to five areas, namely the left, left center, center, right center, and right areas. In this embodiment, algorithm processing can be added to the audio output signal. According to the sound volume and phase and other parameters of the left, center, and right channels of the audio signal, the left, left center, center, right center, and right 5-way output signals are calculated. The 5-way output signals correspond to the conductive coils of the 5 areas of the display device 10, respectively. In this way, the sound following effect of sound following the picture can be achieved, the sound effect is richer, and the user's audio-visual experience can be further improved.

[0370] In some embodiments, considering that the sound effect of the display device 10 is relatively simple when it only vibrates the display panel 100 to produce sound, in order to enrich the sound effect of the display device 10, in this embodiment, the display device 10 can also be provided with a speaker (not shown in the figure), and the speaker includes a tweeter, a woofer and a mid-range speaker. The number and arrangement positions of the tweeters, woofers and mid-range speakers can be reasonably set according to actual needs. In this way, by matching the vibration sound of the middle area of the display panel 100 with the speaker (including the tweeter, the woofer and the mid-range speaker), the sound effect of the display device 10 can be further improved, thereby improving the user experience.

[0371] In some embodiments, combined Figure 50 and Figure 51 , the display device 10 may further include a middle frame 600;

[0372] In some embodiments, combined Figure 50 and Figure 51 , the display device 10 may further include a first sealing member 611;

[0373] In some embodiments, combined Figure 50 and Figure 51 , the display device 10 may further include a second sealing member 612 .

[0374] Specifically, the middle frame 600 is provided around the display panel 100 and the back plate 500. The middle frame 600 can be connected to the display panel 100 and the back plate 500 respectively. The first seal 611 is provided around the display panel 100 to seal the gap between the display panel 100 and the middle frame 600. The second seal 612 is provided around the light board 210 to seal the gap between the light board 210 and the back plate 500. For example, the second seal 612 can be provided around the edge of the combined structure formed by multiple light boards 210. In this way, the overall sealing of the display device 10 can be ensured. In some embodiments, both the first seal 611 and the second seal 612 can be double-sided tape.

[0375] 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.

[0376] To this end, combined Figure 56 , the display device of some embodiments of the present application further includes a circuit board 800; the back plate 500 of some embodiments of the present application includes a first back plate 510;

[0377] In some embodiments, the backplate 500 includes a second backplate 520 .

[0378] The first back plate 510 is configured to be connected to the actuator 400 ; the second back plate 520 is disposed opposite to the circuit board 800 , and the second back plate 520 is configured to fix the circuit board 800 .

[0379] The embodiment of the present application separates 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.

[0380] 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.

[0381] 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.

[0382] 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.

[0383] 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.

[0384] 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.

[0385] Please refer to Figure 56 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.

[0386] 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.

[0387] In some embodiments, the first connection structure 511 includes a first bending portion 5111 ;

[0388] In some embodiments, the first connection structure 511 includes a first mounting portion 5112 ;

[0389] 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.

[0390] In some embodiments, the second connection structure 521 includes a second bending portion 5211;

[0391] In some embodiments, the second connection structure 521 includes a second mounting portion 5212 ;

[0392] 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.

[0393] 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.

[0394] The second slot 812 is also an annular slot provided on the outer peripheral wall of the flexible body 8101. The second mounting portion 5212 has

[0395] The second mounting through hole, 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 slot 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 and the vibration damping connector 810 are stably connected.

[0396] 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.

[0397] The embodiment of the present application provides a tapered flexible body 8101, which not only facilitates the processing of the flexible body 8101 but also makes the structure of the flexible body 8101 more stable.

[0398] 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.

[0399] Combine Figure 57 and Figure 58 In the embodiment 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 Figure 57 and Figure 58 The fastening hole 813 can be provided only at one end of the flexible body 8101 near the second slot 812; or, the fastening hole 813 is a through hole that penetrates the flexible body 8101. This arrangement not only helps to reduce weight, but also improves the flexibility of the flexible body 8101.

[0400] In some embodiments, 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.

[0401] In some embodiments, the fastener 814 includes a head 8141 ;

[0402] In some embodiments, the fastener 814 includes a tail portion 8142;

[0403] In some embodiments, the fastener 814 includes a middle portion 8143;

[0404] The middle portion 8143 connects the head portion 8141 and the tail portion 8142 . The diameter of the tail portion 8142 is larger than the diameter of the middle portion 8143 . The diameter of the end where the head portion 8141 and the middle portion 8143 are connected is larger than the diameter of the middle portion 8143 .

[0405] In some embodiments, the fastening hole 813 may include a first hole segment 8131 ;

[0406] In some embodiments, the fastening hole 813 may include a second hole segment 8132;

[0407] The central axis of the first hole segment 8131 and the central axis of the second hole segment 8132 are coaxial, and 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.

[0408] 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.

[0409] 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.

[0410] Reference Figure 59 In some embodiments, the first back plate 510 and the second back plate 520 are stacked and spaced apart along the thickness direction of the display panel, so that at least a portion of the first back plate 510 and at least a portion of the second back plate 520 are stacked and spaced apart along the thickness direction of the display panel 100. The connection method can be referred to in the attached Figure 44 The connection method of the first backplane 510 and the second backplane 520 is shown and will not be described in detail here.

[0411] 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.

[0412] 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 light board, wherein a plurality of light boards are provided and spliced with each other, the light board is configured to provide backlight for the display panel, and a cavity is formed between the light board and the display panel; An exciter is provided on a side of the light board away from the display panel and drives the light board to vibrate; a vibration output end of the exciter is connected to the light board or a joint of the light boards.

2. The display device according to claim 1, wherein The exciter comprises: shell, an actuating member, wherein a vibration output end of the actuating member is connected to the light board or a joint of the light board; The damper is connected between the actuator and the housing, and is configured to transfer heat from the actuator to the housing.

3. The display device according to claim 2, wherein The damper includes a fiber layer and a heat-conducting layer that are stacked together; or, the damper includes a heat-conducting film and a fiber layer that are stacked together, and the heat-conducting film is provided with a plurality of through holes.

4. The display device according to claim 2 or 3, characterized in that Two adjacent lamp panels are spliced together through a connecting piece, and the vibration output end of the actuator is connected to the connecting piece.

5. The display device according to claim 1, wherein The exciter is connected to the middle of a plurality of joints formed by the light panel.

6. The display device according to claim 1, wherein The display device further includes a sounding board, which is arranged on a side of the light board facing away from the display panel, and is connected to a joint between adjacent light boards.

7. The display device according to claim 6, wherein: The exciter is connected to the light board through the sound board.

8. The display device according to claim 1, wherein The display device further includes a back plate, the back plate being located on a side of the light board facing away from the display panel; The exciter includes a coil assembly and a magnetic assembly. The coil assembly is planar and is arranged on the side of the light board away from the display panel. The magnetic assembly is arranged on the back panel and faces the coil assembly. The coil assembly and the magnetic assembly are configured to drive the display panel to vibrate and make sound through their own electromagnetic induction.

9. The display device according to claim 8, wherein The coil assembly includes a conductive coil, which is arranged on the lamp board. The magnetic assembly includes a magnetic member, and the conductive coil surrounds the magnetic member.

10. The display device according to claim 1, wherein There are multiple exciters, and the multiple exciters are connected to some of the multiple light panels. The multiple exciters are configured to drive some of the multiple light panels to vibrate according to the image information of the display panel, so that the display panel vibrates locally and makes sound.

Images