Display device

Abstract

The invention provides display equipment, relates to the technical field of display, and is used for solving the technical problem of poor sound field effect of a self-sounding display screen caused by noise generated by resonance of a circuit board in the related art. The display equipment comprises a display panel, a backlight module, an exciter, the circuit board and a back plate, and the back plate is constructed on the back of the display screen; the back plate comprises a first back plate and a second back plate, the first back plate is configured to fix the exciter, and the second back plate is configured to fix the circuit board; and the first back plate and the second back plate are flexibly connected. The complete back plate is divided into the first back plate and the second back plate, so that the contact area between the circuit board and the back plate is reduced, and the counter-acting force of the exciter is prevented from being directly conducted to the circuit board; meanwhile, through flexible connection between the first back plate and the second back plate, the acting force conducted to the circuit board is further attenuated, the resonance noise of the circuit board is reduced, and the sound field effect of the display screen is improved.

Description

Technical Field

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

[0002] An exciter is set on the display device to vibrate the display panel to achieve screen sound, that is, the display panel has both display and sound functions, achieving an audio-visual effect of integrated sound and picture.

[0003] When the exciter stimulates 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, which not only affects the structural stability of the display device, but also affects the acoustic effect. Summary of the Invention

[0004] In view of the above problems, some embodiments of the present application provide a display device to solve the problem in the related art that the circuit board resonates and emits noise, affecting the acoustic effect of the display device.

[0005] In order to solve the above technical problems, some embodiments of the present application provide the following technical solutions:

[0006] Some embodiments of the present application provide a display device, comprising:

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

[0008] a light board, located on the back side of the display panel, the light board being provided with a support member supported between the display panel and the light board;

[0009] an exciter, connected to the light board and driving the light board to vibrate;

[0010] a circuit board configured to control the light panel to emit light and the actuator to vibrate;

[0011] A back panel is constructed on the back of the light panel; the back panel includes:

[0012] a first back plate configured to fix the exciter;

[0013] A second backplane is arranged opposite to the circuit board and is configured to fix the circuit board; the second backplane is flexibly connected to the first backplane.

[0014] In some embodiments, the display device further includes a vibration-damping connector, which is located on the back of the back panel, and at least part of the structure of the vibration-damping connector is a flexible portion, and the two ends of the vibration-damping connector are respectively fixedly connected to the first back panel and the second back panel.

[0015] In some embodiments, the vibration-damping connector includes a flexible body having a first card slot and a second card slot; the first back plate is embedded in the first card slot on the side facing the flexible body, and the second back plate is embedded in the second card slot on the side facing the vibration-damping connector.

[0016] In some embodiments, the first back plate forms a first connection structure toward the edge of the vibration-damping connector, and the first connection structure is embedded in the first slot; the second back plate has a second connection structure toward the edge of the vibration-damping connector, and the second connection structure is spaced apart from the first connection structure; the second connection structure is embedded in the second slot.

[0017] In some embodiments, the first connecting structure includes a first connecting portion, the second connecting structure includes a second connecting portion, the second connecting portion and the first connecting portion are opposite to each other and spaced apart along the thickness direction of the display panel; the first connecting portion is embedded in the first card slot; and the second connecting portion is embedded in the second card slot.

[0018] In some embodiments, the first card slot and the second card slot are both annular grooves arranged on the outer peripheral wall of the flexible body; the first connecting part is provided with a first mounting through hole, and the first connecting part is embedded in the first card slot through the first mounting through hole; the second connecting part is provided with a second mounting through hole, and the second connecting part is embedded in the second card slot through the second mounting through hole.

[0019] In some embodiments, the vibration-damping connector further includes a fastener, a fastening hole is provided on the flexible body, and the second slot is located outside the fastening hole; the fastener is fixed in the fastening hole.

[0020] In some embodiments, the fastening hole is a through hole that passes through the vibration-damping connector.

[0021] In some embodiments, the cross-sectional area of the flexible body gradually decreases from its first end toward its second end, and the first card slot is arranged at the end of the flexible body with a larger cross-sectional area, and the second card slot is arranged at the end of the flexible body with a smaller cross-sectional area.

[0022] In some embodiments, a fixing pin is provided on the first back plate, and an elastic pad is provided on the exciter, and the elastic pad is fixed to the first back plate through the fixing pin.

[0023] Some embodiments of the present application provide a display device comprising a display panel, a light board, an exciter, a circuit board, and a backboard, wherein the display panel is configured to display image information, the light board is located on the back side of the display panel, a support member is supported between the light board and the display panel, the exciter is connected to the light board and drives the light board to vibrate; the backboard comprises a first backboard and a second backboard, the first backboard is configured to fix the exciter, and the second backboard is configured to fix the circuit board. By separating the complete backboard into the first backboard and the second backboard, the circuit board is connected only to the second backboard, reducing the contact area between the circuit board and the backboard and preventing the reaction force of the exciter from being directly transmitted to the circuit board; at the same time, the first backboard and the second backboard are flexibly connected by a vibration-damping connector, further attenuating the reaction force of the exciter transmitted to the circuit board, reducing the resonant noise of the circuit board, and expanding the frequency response of the sound emitted by the display panel to the full frequency band, thereby improving the acoustic effect of the vibration sound in the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate some embodiments of the present application or technical solutions in the prior art, a brief introduction is given below to the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0025] Figure 1 This is a schematic diagram illustrating an operation scenario between a display device and a control device according to some embodiments of the present application;

[0026] Figure 2 A block diagram of a display device according to some embodiments of the present application;

[0027] Figure 3 A schematic cross-sectional view of a display device according to some embodiments of the present application;

[0028] Figure 4 A schematic structural diagram of a vibration-damping connector for a display device provided in some embodiments of the present application;

[0029] Figure 5 A schematic structural diagram of a vibration-damping connector for a display device provided in some embodiments of the present application;

[0030] Figure 6 A schematic diagram of the three-dimensional structure of a display device provided in some embodiments of the present application;

[0031] Figure 7 A schematic diagram of the three-dimensional structure of a display device provided in some embodiments of the present application;

[0032] Figure 8A schematic diagram of the back side of a display device provided in some embodiments of the present application;

[0033] Figure 9 This is a schematic diagram of the structure of an actuator according to some embodiments of the present application;

[0034] Figure 10 This is a schematic diagram of the structure of the thermal elastic wave shown in some embodiments of the present application;

[0035] Figure 11 This is a schematic diagram of the structure of the thermal elastic wave shown in some embodiments of the present application;

[0036] Figure 12 A schematic cross-sectional view of a display device according to some embodiments of the present application;

[0037] Figure 13 A schematic diagram of the arrangement of vibration support members provided in some embodiments of the present application;

[0038] Figure 14 Schematic diagram of the state of the elastic support member shown in some embodiments of the present application;

[0039] Figure 15 A schematic cross-sectional view of a display device according to some embodiments of the present application;

[0040] Figure 16 A schematic cross-sectional view of a display device according to some embodiments of the present application;

[0041] Figure 17 Schematic cross-sectional view of a display device according to some embodiments of the present application.

[0042] Reference numerals:

[0043] 10: Display device; 20: Smart device; 30: Server;

[0044] 100: display panel; 110: optical film assembly; 111: brightness enhancement film; 112: fluorescent film; 113: diffusion film; 120: display film layer;

[0045] 210: Light board;

[0046] 300: support member; 301: elastic portion; 302: rigid portion; 310: first adhesive structure; 320: suction cup structure;

[0047] 400: actuator; 401: actuator body; 410: actuator; 411: third connecting structure; 420: damper; 421: fiber layer; 422: heat-conducting layer; 423: heat-conducting film; 4231: through hole; 430: housing; 440: pressure ring; 450: magnetic assembly; 451: magnetic conductive member; 452: magnetic member; 460: elastic pad; 480: fixing pin;

[0048] 500: back plate; 510: first back plate; 511: first connecting structure; 5111: first bending portion; 5112: first connecting portion; 520: second back plate; 521: second connecting structure; 5211: second bending portion; 5212: second connecting portion;

[0049] 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;

[0050] 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;

[0051] M: cavity; N: magnetic air gap. DETAILED DESCRIPTION

[0052] 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.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] 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.

[0057] 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.

[0058] An exciter is set on the display device to vibrate the display panel to achieve screen sound, that is, the display panel has both display and sound functions, achieving an audio-visual effect of integrated sound and picture.

[0059] In related technologies, self-sounding display screens have the problem of poor sound field effects. Technical personnel have found that the reason for this problem is that when the exciter stimulates 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, the resonance energy and amplitude are large.

[0060] In response to the above-mentioned technical problems, some embodiments of the present application provide a display device, which separates the complete back panel into a first back panel and a second back panel, so that the circuit board is only connected to the second back panel, thereby reducing the contact area between the circuit board and the back panel and preventing the reaction force of the exciter from being directly transmitted to the circuit board; at the same time, the first back panel and the second back panel are connected by a vibration-damping connector to further attenuate the reaction force of the exciter transmitted to the circuit board, reduce the resonance noise of the circuit board, and expand the frequency response of the sound emitted by the display screen to the full-band sound, thereby improving the sound field effect of the display screen.

[0061] 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 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.

[0062] In order to make the above-mentioned purposes, features and advantages of some embodiments of the present application more obvious and easy to understand, the technical solutions in some embodiments of the present application will be clearly and completely described below in conjunction with the drawings in some embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0063] 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,

[0064] 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.

[0065] 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.

[0066] 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 at least one of a tuner and demodulator 901 , a communicator 902 , a detector 903 , an external device interface 904 , a controller 905 , a display 906 , an audio output interface 907 , a memory 908 , a power supply 909 , and a user interface 910 .

[0067] In some embodiments, the controller includes a processor, a video processor, an audio processor, a graphics processor, a RAM, a ROM, and first to nth interfaces configured as input / output.

[0068] The display 906 includes a display screen component configured to present a picture, and a driving component for driving the image display. It is configured to receive an image signal output from the controller, and display video content, image content, and a menu control interface component and a user control UI interface.

[0069] 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.

[0070] The communicator 902 is a component configured to communicate with an external device or server using 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 use the communicator 902 to send and receive control signals and data signals with the control device 900 or the server 30.

[0071] The user interface 910 may be configured to receive a control signal from the control device 900 (eg, an infrared remote controller, etc.).

[0072] Detector 903 is configured to collect signals from the external environment or external interactions. For example, detector 903 may include a light receiver configured as a sensor to collect ambient light intensity; or detector 903 may include an image collector, such as a camera, configured to collect external environmental scenes, user attributes, or user interaction gestures; or detector 903 may include a sound collector, such as a microphone, configured to receive external sounds.

[0073] 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.

[0074] The tuner-demodulator 901 receives broadcast television signals via wired or wireless reception, and demodulates audio and video signals, such as EPG data signals, from a plurality of wireless or wired broadcast television signals.

[0075] 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.

[0076] 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.

[0077] 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), a first interface to an nth interface configured as input / output, a communication bus (Bus), etc.

[0078] 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.

[0079] 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.

[0080] Reference Figure 3 Some embodiments of the present application provide a display device 10, which may be a liquid crystal display device. The display device 10 has a top side, a bottom side, a left side, a right side, and a front side and a back side. The left side and the right side of the display device 10 refer to the left side and the right side of the user when the user is facing the display surface of the display device. Accordingly, the side of the display device 10 facing the user is the front side, the side of the display device 10 facing away from the user is the back side, the upper side of the display device 10 is the top side, and the lower side of the display device 10 is the bottom side.

[0081] Combine Figure 3 The display device 10 of some embodiments of the present application includes a display panel 100; the display panel 100 is configured to display image information such as text and images, and the display panel 100 can also vibrate and make sounds under the excitation of the exciter 400.

[0082] In some embodiments, the display device 10 includes a light board 210 ; the light board 210 is configured to provide backlight for the display panel 100 .

[0083] In some embodiments, the display device 10 includes an exciter 400 ; the exciter 400 is disposed on a side of the light board 210 facing away from the display panel 100 , and the exciter 400 provides vibration force for the vibration and sound generation of the display panel 100 .

[0084] In some embodiments, the display device 10 includes a circuit board 800;

[0085] In some embodiments, the display device 10 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, or the like to provide effective support.

[0086] In some embodiments, the display device 10 including other electrical components are disposed on the back of the display panel 100 .

[0087] In some embodiments, the light board 210 is configured to generate backlight, and the display panel 100 can modulate the backlight as needed to display different images. The light board 210 includes a board body and a light source arranged on the board body, and the light source is located on the side of the board body facing the display panel 100. The board body can be an aluminum plate, 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-Light Emitting Diode, Micro LED). The light source can be multiple and spaced apart on the board body.

[0088] In some embodiments, a cavity M is formed between the light board 210 and the display panel. Cavity M can be a sealed cavity. The gas in cavity M can act as a damping spring, effectively transmitting vibration energy. To improve the efficiency of vibration transmission, some embodiments of the present application include a support member 300 between the light board 210 and the display panel 100 to transmit the vibration of the light board 210 to the display panel 100, causing the display panel 100 to vibrate and produce sound.

[0089] Specifically, 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, thereby causing the display panel to vibrate. The vibrations generate sound waves, allowing the display panel to both display images and replace speakers in emitting sound.

[0090] 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).

[0091] For example, the gap of cavity M can be 0.3mm to 10mm, with the maximum gap of cavity M being 10mm. Alternatively, the gap of cavity M can be 0.3mm or 1mm, etc. For example, when the gap of cavity M is 1mm, the thickness of cavity M is relatively small, which can improve the transmission efficiency of the vibration force output by the exciter. Alternatively, when the gap of cavity M is 0.3mm, the distance between exciter 400 and display panel 100 is closer, the vibration is more intense, and the sound effect is better. When cavity M is 10mm, the thickness of 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 cavity M can be 0.3mm to 1mm, 1mm to 2mm, 2mm to 3mm, 3mm to 4mm, 4mm to 5mm, 5mm to 6mm, 6mm to 7mm, 7mm to 8mm, 8mm to 9mm, or 9mm to 10mm. For example, the gap of the cavity M may be 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm, 5.5 mm, 6 mm, 6.5 mm, 7 mm, 7.5 mm, 8 mm, 8.5 mm, 9 mm, 9.5 mm, 10 mm, etc. It should be noted that the numerical values and numerical ranges involved in some embodiments of the present application are approximate values and may have a certain range of errors due to the influence of the manufacturing process. Those skilled in the art may consider such errors to be negligible.

[0092] The exciter 400 serves as a vibration source and may include an exciter body 401 and an actuator 410 , wherein the actuator 410 is connected to the light board 210 , so that the vibration generated by the exciter 400 can be transmitted to the display panel 100 through the light board 210 and the support member 300 .

[0093] The exciter 400 can be an electromagnetic exciter or a piezoelectric ceramic to excite the display panel 100 to resonate and thus emit sound; while the exciter 400 excites the display panel 100 to resonate, the reaction force of the exciter 400 will be transmitted to the circuit board 800, causing the circuit board 800 and the components on the circuit board 800 to resonate and emit noise, and the display device of some embodiments of the present application can reduce the vibration of the circuit board 800.

[0094] The back plate 500 is constructed on the back of the display panel 100 . The back plate 500 is fixedly connected to the actuator 400 and the circuit board 800 . The back plate 500 is configured to fix the actuator 400 and the circuit board 800 .

[0095] The circuit board 800 is configured to control the light board 210 to emit light and to control the actuator 400 to vibrate.

[0096] At least a portion of the backplane 500 is parallel to the display panel 100 . In some embodiments of the present application, the backplane 500 includes a first backplane 510 and a second backplane 520 .

[0097] The first back plate 510 is configured to be connected to the exciter body 401 to install and fix the exciter 400 and ensure that the exciter 400 can work stably.

[0098] The second back plate 520 is close to the circuit board 800 , and at least a portion of the second back plate 520 is parallel to the circuit board 800 . The second back plate 520 is configured to be fixedly connected to the circuit board 800 to install and fix the circuit board 800 .

[0099] That is to say, some embodiments of the present application separate the complete backplate 500 into a first backplate 510 and a second backplate 520, so that the circuit board 800 is only connected to the second backplate 520, reducing the contact area between the circuit board 800 and the backplate 500, preventing the reaction force of the exciter 400 from being directly transmitted to the circuit board 800, and reducing the resonance noise of the circuit board 800.

[0100] 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.

[0101] That is to say, the first backplane 510 and the second backplane 520 are two independent backplanes that do not affect each other; this makes the circuit board 800, which is prone to mechanical vibration, an independent structural component, preventing the reaction force of the exciter 400 from being transmitted to the circuit board 800, thereby reducing the resonance noise of the circuit board 800.

[0102] 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.

[0103] 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.

[0104] That is to say, some embodiments of the present application further connect the first back plate 510 and the second back plate 520 through a vibration-damping connector 810 to further attenuate the reaction force of the exciter 400 transmitted to the circuit board 800; and also ensure the connection stability of the first back plate 510 and the second back plate 520.

[0105] The display device provided by some embodiments of the present application includes a back panel 500 and a vibration-damping connector 810. The back panel 500 and the vibration-damping connector 810 are both constructed on the back of the display panel 100. The back panel 500 is parallel to the display panel 100. The back panel 500 includes a first back panel 510 and a second back panel 520. The first back panel 510 is configured to be connected to the exciter body 401, and the second back panel 520 is close to the circuit board 800. The second back panel 520 is configured to be fixedly connected to the circuit board 800. At least part of the structure of the vibration-damping connector 810 is a flexible part, and the two ends of the vibration-damping connector 810 are fixedly connected to the first back panel 510 and the second back panel 520, respectively. 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.

[0106] Continue to refer Figures 3 to 5 In some embodiments of the present application, the vibration-damping connector 810 includes a flexible body 8101, and the flexible body 8101 has 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 to embed the edge of the first back plate 510 facing the vibration-damping connector 810 into 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 to embed the edge of the second back plate 520 close to the vibration-damping connector 810 into 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.

[0107] The snap-fitting structures of the first back plate 510 and the second back plate 520 with the first snap-fitting slot 811 and the second snap-fitting slot 812 are simple in design and easy to install.

[0108] In some of the above embodiments, the first back plate 510 and the second back plate 520 can be arranged along the first direction (ie Figure 3) are arranged in sequence, and at least a portion of the first back panel 510 and at least a portion of the second back panel 520 are arranged in the same plane along the first direction; that is, at least a portion of the first back panel 510 and at least a portion of the second back panel 520 are parallel and aligned, ensuring the compactness of the overall structure of the display device.

[0109] The first card slot 811 and the second card slot 812 can be arranged along the second direction (ie Figures 3 to 5 , and the second direction is perpendicular to the first direction) are spaced apart. 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 retaining groove 811, so that the first connecting structure 511 is embedded in the first retaining 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 retaining groove 812, so that the second connecting structure 521 is embedded in the second retaining 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.

[0110] Since the first card slot 811 and the second card slot 811 are aligned along the second direction (ie Figures 3 to 5 811 and the second back plate 520 are parallel and aligned, indicating that the edge of the first back plate 510 and the edge of the second back plate 520 cannot be directly embedded in the first card slot 811 and the second card slot 812. Therefore, the first connecting structure 511 is bent toward the first card slot 811 at the edge of the first back plate 510, and the second connecting structure 521 is bent toward the second card slot 812 at the edge of the second back plate 520, ensuring that the first back plate 510 and the second back plate 520 are fixedly connected to the vibration-damping connector 810.

[0111] At the same time, for some of the above-mentioned embodiments, the existence of the first connecting structure 511 and the second connecting structure 521 prevents the portion where the first back plate 510 is connected to the exciter body 401 and the portion where the second back plate 520 is connected to the circuit board 800 from being in direct contact with the vibration-damping connector 810, thereby further attenuating the force transmission between the first back plate 510 and the second back plate 520, thereby achieving the purpose of attenuating the reaction force of the exciter 400 transmitted to the circuit board 800.

[0112] refer to Figure 6 and Figure 7 , which is different from some of the above embodiments, the first back plate 510 and the second back plate 520 are arranged along the second direction ( Figure 6 and Figure 7) are spaced apart from each other in the vertical direction shown in FIG, such that at least a portion of the first backplane 510 and at least a portion of the second backplane 520 are stacked and spaced apart along the thickness direction of the display panel 100. The area of the first backplane 510 can be larger than the area of the second backplane 520, or the area of the first backplane 510 can be smaller than the area of the second backplane 520. When the area of the first backplane 510 is larger than the area of the second backplane 520, the first backplane 510 can completely cover the second backplane 520.

[0113] In some embodiments, the first connecting structure 511 includes a first connecting portion 5112, and the second connecting structure 521 includes a second connecting portion 5212. The first connecting portion 5112 and the second connecting portion 5212 are opposite and spaced apart in the front-to-back direction of the display panel. The first connecting portion 5112 is embedded in the first slot 811, and the second connecting portion 5212 is embedded in the second slot 812. This arrangement facilitates the fixed connection of the flexible body 8101 to the first connecting structure 511 and the second connecting structure 521, respectively.

[0114] In some embodiments, the first connecting structure 511 further includes a first bending portion 5111, one end of the first bending portion 5111 can be vertically connected to the first back plate 510, and the other end of the first bending portion 5111 extends away from the first back plate 510; the first connecting portion 5112 can be parallel to the first back plate 510, and the other end of the first bending portion 5111 is vertically connected to the first connecting portion 5112; that is, along the second direction ( Figure 6 and Figure 7 ), the first connection portion 5112 is spaced a certain distance from the first back plate 510 .

[0115] In some embodiments, the first connecting portion 5112 and the first bending portion 5111 may both be plate-shaped structures to facilitate the processing of the first back plate 510 .

[0116] In some embodiments, the second connection structure 521 further includes a second bent portion 5211, one end of the second bent portion 5211 can be vertically connected to the second back plate 520, and the other end of the second bent portion 5211 extends away from the second back plate 520; the second connection portion 5212 can be parallel to the second back plate 520, and the other end of the second bent portion 5211 can be vertically connected to the second connection portion 5212; that is, along the second direction ( Figure 6 and Figure 7 ), the second connection portion 5212 is spaced a certain distance from the second back plate 520 .

[0117] In some embodiments, the second bending portion 5211 and the second connecting portion 5212 may both be plate-shaped structures to facilitate the processing of the second back plate 520 .

[0118] At the same time, the first card slot 811 and the second card slot 812 are also moved along the second direction (ie Figures 1 to 3 , the second direction is perpendicular to the first direction) are arranged at intervals up and down, the first connecting portion 5112 is embedded in the first card slot 811, and the second connecting portion 5212 is embedded in the second card slot 812.

[0119] Continue to refer Figure 6 and Figure 7 In some embodiments of the present application, taking the example where the area of the first backplane 510 is greater than the area of the second backplane 520 , the first backplane 510 can completely cover the second backplane 520 , and the edge of the first backplane 510 extends beyond the edge of the second backplane 520 .

[0120] In some of the above embodiments, the first connection portion 5112 extends close to the center of the first back plate 510, and the second connection portion 5212 extends away from the center of the second back plate 520; at this time, the vibration-damping connection member 810 is arranged between the first connection portion 5112 and the second connection portion 5212, so that the first connection portion 5112 and the second connection portion 5212 are respectively embedded in the first card slot 811 and the second card slot 812.

[0121] Continue to refer Figure 4 and Figure 5 In some embodiments of the present application, the first card slot 811 is an annular groove arranged on the outer peripheral wall of the flexible body 8101, and the first connecting portion 5112 has a first mounting through hole, and the first connecting portion 5112 is embedded in the first card slot 811 through the first mounting through hole; that is, the first connecting portion 5112 is sleeved on the groove wall of the first card slot 811 through the first mounting through hole, and the inner peripheral wall of the first mounting through hole is also engaged with the first card slot 811, ensuring that the first back plate 510 and the vibration-damping connector 810 are stably connected.

[0122] The second card slot 812 is also an annular groove arranged on the outer peripheral wall of the flexible body 8101. The second connecting part 5212 has a second mounting through hole, and the second connecting part 5212 is embedded in the second card slot 812 through the second mounting through hole; that is, the second connecting part 5212 is sleeved on the groove wall of the second card slot 812 through the second mounting through hole, and the inner peripheral wall of the second mounting through hole is also engaged with the second card slot 812, ensuring that the second back plate 520 is stably connected to the vibration damping connector 810.

[0123] 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.

[0124] In some embodiments of the present application, a tapered flexible body 8101 is provided, which not only facilitates the processing of the flexible body 8101 but also makes the structure of the flexible body 8101 more stable.

[0125] 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.

[0126] Continue to refer Figure 4 and Figure 5 In some embodiments of the present application, a fastening hole 813 is provided on the flexible body 8101, and the second slot 812 is located outside the fastening hole 813. The central axis of the fastening hole 813 is aligned with the second direction (i.e. Figure 4 and Figure 5 The fastening hole 813 may be provided only at one end of the flexible body 8101 near the second slot 812; alternatively, the fastening hole 813 may be a through hole extending through the flexible body 8101. This arrangement not only reduces weight but also improves the flexibility of the flexible body 8101.

[0127] 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.

[0128] In some embodiments, the fastener 814 includes a relative head 8141 and a tail 8142, the head 8141 matches the fastening hole 813, so that the head 8141 of the fastener 814 is connected in the fastening hole 813; the diameter of the tail 8142 of the fastener 814 is larger than the diameter of the fastening hole 813, so that the tail 8142 of the fastener 814 can abut against the flexible body 8101.

[0129] At the same time, the diameter of the tail 8142 of the fastener 814 can also be larger than the diameter of the second mounting hole. When the second connecting part 5212 is disengaged from the second slot 812, the tail 8142 of the fastener 814 can ensure that the second connecting part 5212 is connected to the flexible body 8101, thereby ensuring the stability of the connection between the second back panel 520 and the vibration-damping connector 810.

[0130] Continue to refer Figure 4 and Figure 5In some embodiments, the fastening hole 813 may include a first hole segment 8131 and a second hole segment 8132, the central axis of the first hole segment 8131 and the central axis of the second hole segment 8132 are coaxial, 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.

[0131] The head 8141 of the fastener 814 is along the second direction (ie Figure 4 and Figure 5 ) enter the first hole section 8131 and the second hole section 8132 in sequence and are connected in the first hole section 8131 and the second hole section 8132.

[0132] The fastener 814 further includes a middle portion 8143 connecting the head portion 8141 and the tail portion 8142. The diameter of the middle portion 8143 is the same as the diameter of the first hole section 8131, or the middle portion 8143 and the first hole section 8131 are interference fit.

[0133] 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.

[0134] The mating connection between the fastener 814 and the first hole section 8131 and the second hole section 8132 can prevent the fastener 814 from loosening, further ensuring the stability of the connection between the second back plate 520 and the vibration-damping connector 810.

[0135] Combine Figure 8 The main audio channel is excited by two drivers 400, creating a 2.0 stereo system for left and right channels. Circuit board 800 includes a power board and a mainboard. These are independent components, mounted to the second backplane via vibration-damping connectors. This ensures a wider frequency response and reduces the risk of mechanical vibration.

[0136] In summary, some embodiments of the present application provide a display device, including a back panel 500 and a vibration-damping connector 810, wherein the back panel 500 and the vibration-damping connector 810 are both constructed on the back of the display panel 100, and the back panel 500 is parallel to the display panel 100. The back panel 500 includes a first back panel 510 and a second back panel 520, and the first back panel 510 is configured to be connected to the exciter 400, and the second back panel 520 is close to the circuit board 800 and parallel to the circuit board 800, and the second back panel 520 is configured to be fixedly connected to the circuit board 800; at least part of the structure of the vibration-damping connector 810 is a flexible part, and the two ends of the vibration-damping connector 810 are fixedly connected to the first back panel 510 and the second back panel 520, respectively. By separating the complete back panel 500 into a first back panel 510 and a second back panel 520, the circuit board 800 is connected only to the second back panel 520, thereby reducing the contact area between the circuit board 800 and the back panel 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 panel 510 and the second back panel 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 pronunciation, thereby improving the sound field effect of the display screen.

[0137] Combine Figure 9 In some embodiments of the present application, the exciter 400 further includes a spring 420 , wherein the vibration output end of the actuator 410 is connected to the lamp board 210 ; one end of the spring 420 is connected to the actuator 410 , and the other end of the spring 420 is connected to the exciter body 401 .

[0138] 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 support member 300, driving the display panel 100 to vibrate and produce sound. In this way, the display device of some embodiments of the present application can achieve front-side sound, 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.

[0139] 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.

[0140] 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 , thereby preventing the actuator 410 and the light board 210 from being separated from each other.

[0141] In some embodiments, the 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 help reduce the weight of the exciter 400 .

[0142] In some embodiments of the present application, the central axis of the spider 420 may coincide with the central axis of the actuator 400 .

[0143] In some embodiments of the present application, the actuator 400 is provided with a spring 420 to transfer the heat generated by the vibration of the actuator 410 to the actuator body 401 for heat dissipation. In this way, in addition to being dissipated through the air, the heat generated by the actuator 410 can also be dissipated through the spring 420, which helps to reduce the temperature of the actuator 410 and reduce the impact of local temperature on image display quality.

[0144] 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.

[0145] In some embodiments, the damper 420 is bonded to the actuator 410 and the actuator body 401 respectively. For example, the damper 420 is bonded to the actuator 410 and the actuator body 401 respectively by glue, and the connection method is simple and stable.

[0146] Reference Figure 9 and Figure 10 In some embodiments of the present application, the damper 420 includes a heat-conducting layer 422. This facilitates heat transfer, allowing heat generated by the actuator 410 to be transferred to the actuator body 401 for dissipation, thereby reducing the impact of heat from the actuator 410 on image display quality. The heat-conducting layer 422 has a high thermal conductivity and can be made of metal, graphite, or other materials.

[0147] Continue to refer to Figure 9 and Figure 10 In some embodiments, the damper 420 further includes a fiber layer 421, which is stacked with a heat conducting layer 422. The fiber layer 421 includes but is not limited to mesh, glass fiber mesh, etc.

[0148] A possible manufacturing method for the elastic wave 420 includes: firstly, using flake graphite as the raw material, performing an oxidation and pulping process to form a graphene oxide slurry; then coating it as a base film, and then performing a sintering, reduction, and calendaring process to form a graphene membrane; secondly, 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 the fiber membrane, and embossing them into a wavy shape. After curing, the elastic wave 420 with high thermal conductivity is formed.

[0149] In some embodiments of the present application, the damper 420 utilizes a fiber layer 421 as a skeleton and is formed by combining the fiber layer 421 with a heat-conducting layer 422. The damper 420 is not only elastic but also has high thermal conductivity, which facilitates the transfer of heat generated by the actuator 410 to the actuator body 401 while reducing the amount of heat generated by the actuator 410 that is transferred to the display panel.

[0150] In some embodiments of the present application, the thermal conductivity of the elastic wave 420 is several times that of general metal materials such as copper and aluminum, so that the heat of the actuator 410 can be mainly transferred to the actuator body 401 through the elastic wave 420, thereby reducing the temperature of the vibration output end of the actuator 410 and reducing the impact of local temperature on the image display quality of the display device.

[0151] In some embodiments, there are multiple fiber layers 421 or multiple heat-conducting layers 422 , and the fiber layers 421 and the heat-conducting layers 422 are adjacent to each other, so that the fiber layers 421 and the heat-conducting layers 422 are alternately stacked.

[0152] In some embodiments, the fiber layer 421 is provided with two layers, and the heat conductive layer 422 is located between the two fiber layers 421 .

[0153] In other embodiments, referring to Figure 10 The heat conducting layer 422 is provided with two layers, and the fiber layer 421 is located between the two heat conducting layers 422 .

[0154] In some other embodiments, the damper 420 includes multiple fiber layers 421 and multiple heat-conducting layers 422 , and the multiple fiber layers 421 and the multiple heat-conducting layers 422 are alternately stacked.

[0155] In some embodiments of the present application, the damper 420 is provided with fiber layers 421 and heat-conducting layers 422 that are alternately stacked to improve the structural strength of the damper 420 and the thermal conductivity of the damper 420 .

[0156] Combine Figure 9 In some embodiments, the thermally conductive layer 422 contacts the actuator body 401, which helps improve heat transfer efficiency and, in turn, the heat dissipation efficiency of the actuator 410. When the thermally conductive layer 422 is located on at least one surface of the damper 420, that surface directly contacts the actuator body 401. When the thermally conductive layer 422 is located within the inner layer of the damper 420, for example, between two fiber layers 421, the fiber layer 421 of the damper 420 facing the actuator body 401 is provided with a notch, allowing the thermally conductive layer 422 to be arranged on the surface of the damper 420 and, in turn, contact the actuator body 401. The fiber layer 421 corresponding to the damper 420 is also provided with a notch, allowing the thermally conductive layer 422 to be arranged on the surface of the damper 420 and, in turn, contact the actuator body 401.

[0157] Combine Figure 11 In some embodiments of the present application, the thermally conductive layer 422 is a thermally conductive film 423, which is provided with a plurality of through-holes 4231. The thermally conductive film 423 is a membrane independent of the fiber layer 421, and is formed with a plurality of through-holes 4231. The through-holes 4231 provided on the thermally conductive film 423 can be circular holes, elliptical holes, polygonal holes, holes of irregular shapes, etc.; the plurality of through-holes 4231 can be arranged in a matrix on the thermally conductive film 423, such as a rectangular matrix or a circular matrix. In some embodiments of the present application, the number, shape, and arrangement of the through-holes 4231 are not limited.

[0158] The thickness of the thermally conductive film 423 can be 100μm to 1000μm. The thickness of the thermally conductive film 423 can be 100μm to 200μm, 200μm to 300μm, 300μm to 400μm, 400μm to 500μm, 500μm to 600μm, 600μm to 700μm, 700μm to 800μm, 800μm to 900μm, 900μm to 1000μm; for example, 200μm, 300μm, 400μm, 500μm, 600μm, 700μm, 800μm, 900μm, etc.

[0159] The fiber layer 421 and the heat-conducting film 423 may both be ring-shaped, and after being embossed and cooled and solidified, the damper 420 is formed.

[0160] 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.

[0161] In some examples, the thermally conductive film 423 is provided with two layers, and the fiber layer 421 is provided between the two layers of thermally conductive film 423 .

[0162] In other examples, refer to Figure 11 The fiber layer 421 is provided with two layers, and the thermal conductive film 423 is provided between the two fiber layers 421 .

[0163] 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.

[0164] 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 .

[0165] For the damper 420 of this embodiment, the heat conductive film 423 is in contact with the actuator body 401 , which is beneficial to improving the heat transfer efficiency and further improving the heat dissipation efficiency of the actuator 410 .

[0166] Refer again Figure 9 In some embodiments of the present application, the exciter 400 further includes a pressure ring 440, which is configured to press the damper 420 against the exciter body 401. The pressure ring 440 can be metal, which helps ensure efficient heat transfer. The second connecting piece 1203 of the damper 420 is pressed against the exciter body 401 by the pressure ring 440, improving the stability and tightness of the connection between the damper 420 and the exciter body 401 and facilitating heat transfer.

[0167] For example, the pressure ring 440 and the actuator body 401 as well as the pressure ring 440 and the damper 420 can be bonded together, and the connection method is simple and stable.

[0168] 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 and a voice coil, wherein the magnetic component 450 is configured to generate a magnetic field, and the voice coil vibrates along the axis direction of the voice coil in the magnetic field.

[0169] Magnetic assembly 450 includes a magnetic permeable member 451 and a magnetic member 452 , with a magnetic air gap N formed between the magnetic permeable member 451 and the magnetic member 452 . Magnetic permeable member 451 is cylindrical with an opening, and magnetic member 452 is disposed on the bottom surface of magnetic permeable member 451 . A gap is formed between the inner wall surface of magnetic permeable member 451 and magnetic member 452 , forming the magnetic air gap N. Magnetic assembly 450 is configured to provide a stable magnetic field in the magnetic air gap N.

[0170] One end of the voice coil is connected to the light board 210. A sheet-like connecting structure 411 can also be provided 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, and the voice coil is fixed to the actuator body 401 via a spring 420. As the magnetic field changes, the voice coil is forced to move back and forth along its own axis. In other words, when the actuator 400 is an electromagnetic actuator, the voice coil constitutes the actuator 410, and the end of the actuator 410 facing away from its vibration output end is located within the magnetic air gap N.

[0171] 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 of this electromagnetic force causes the larger actuator 400 to resonate at a lower frequency. The actuator body 401 has no fixed support but vibrates with the vibration of the driven light board 210. This is the biggest difference between the OLED screen actuator housing and the bracket excitation method.

[0172] In some embodiments of the present application, the actuator body 401 includes a magnetic assembly 450 and a housing 430. The housing 430 is configured to support the magnetic assembly 450 and to achieve elastic mounting of the actuator 400. The magnetic conductive member 451 is fixedly connected to the housing 430. Specifically, in some embodiments of the present application, the magnetic conductive member 451 includes a U-shaped body and a connecting portion. The two ends of the U-shaped body are bent away from each other to form the connecting portion, and the connecting portion is connected to the housing 430.

[0173] The spring 420 is pressed against the magnetic member 451 by the pressure ring 440. For example, the spring 420 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, and the connection method is simple and stable.

[0174] The exciter 400 of some embodiments of the present application reduces the width of the exciter 400 by connecting the elastic wave 420 to the magnetic component 451. Since the axial dimension of the actuator 410 is relatively large, the stacking and pressing of the pressure ring 440, the magnetic component 451 and the shell 430 will not affect the overall thickness of the exciter 400. The connection method of the elastic wave 420 set in this way can not only ensure the stability of the connection, but also help to make the exciter 400 compact.

[0175] Continue to refer to Figure 9 Ventilation holes are provided at the portion of the magnetic member 451 that contacts the damper 420 to improve the heat dissipation efficiency of the magnetic member 451 and the amount of heat dissipated by the actuator 410 through the damper 420. The ventilation holes may be circular holes, and some embodiments of the present application do not limit the shape, number, or arrangement of the ventilation holes.

[0176] In some possible embodiments, the portion of the housing 430 that contacts the magnetic conductive member 451 is provided with ventilation holes. The ventilation holes can be opposite the ventilation holes to further improve heat dissipation efficiency. The ventilation holes can be circular holes. Some embodiments of the present application do not limit the shape, number, or arrangement of the ventilation holes.

[0177] Combine Figure 12 In some embodiments, the housing 430 of the actuator 400 is connected to the first back plate 510 via a fixing pin 480 , and the fixing pin 480 may be perpendicular to the first back plate 510 . An elastic pad 460 is provided on the housing 430 , and the housing 430 is connected to the first back plate 510 via the elastic pad 460 .

[0178] 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 the outer wall surface of the elastic pad 460 is provided with a clamping groove for clamping with the outer shell 430. In this way, there are partial elastic pads 460 on both sides of the matching hole, that is, the cross-sectional shape of the elastic pad 460 can be approximately I-shaped, so as to avoid interference between the outer shell 430 and the fixing pin 480 or the first back plate 510 during the vibration of the exciter 400. This embodiment does not limit the structure, material, etc. of the elastic pad 460.

[0179] The elastic force of the elastic pad 460 is parallel to the thickness of the display device 10, allowing the housing 430 and the first back plate 510 to have a variable relative position. In other words, during vibration of the actuator 400, the housing 430 can reciprocate relative to the first back plate 510. In this case, the actuator 400 also vibrates the light board 210 in a manner similar to inertial drive, preventing the housing 430 and the first back plate 510 from being fixed relative to each other and affecting the frequency response of the display device 10.

[0180] Combine Figure 12 The display panel 100 includes a display film layer 120, which is a liquid crystal film layer. The liquid crystal layer includes a color filter (CF) substrate, a thin film transistor (TFT) substrate (also known as an array substrate), and a liquid crystal (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 these data and scan lines controls the orientation of the liquid crystal molecules, directing backlight light through the color filter substrate and generating a preset color image.

[0181] In some embodiments, the display device further includes: an optical film assembly 110 , and the optical film assembly 110 is located between the display film layer 120 and the light board 210 .

[0182] The optical film assembly 110 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 provided.

[0183] 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 210 into a surface light board 210. 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.

[0184] In some embodiments, the display film layer 120 and the optical film assembly 110 can be bonded together, for example, using photosensitive adhesive (UV adhesive), foam, double-sided tape, etc. In other words, the display panel 100 and the optical film assembly 110 can be bonded together to form a single unit. In this case, the vibration force transmitted from the actuator 400 to the light board 210 is transmitted to the display film layer 120 through the optical film assembly 110.

[0185] In other embodiments, a gas gap exists between the display film layer 120 and the brightness enhancement film 111; and / or a gas gap exists between the brightness enhancement film 111 and the fluorescent film 112; and / or a gas gap exists between the fluorescent film 112 and the diffusion film 113. These gas gaps are closed, forming the cavity M of some of the aforementioned embodiments. In other words, the cavity M can be formed between the display film layer 120 and the brightness enhancement film 111, between the brightness enhancement film 111 and the fluorescent film 112, or between the fluorescent film 112 and the diffusion film 113; or, the cavity M includes at least two of the three aforementioned gas gaps.

[0186] Combine Figure 13 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.

[0187] 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.

[0188] In some embodiments, as Figure 13 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.

[0189] 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.

[0190] 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.

[0191] Reference Figure 14A support member 300 is provided between the light board 210 and the display panel 100 to transmit vibration force. The cross-section of the support member 300 (the cross-section perpendicular to the display device) can be rectangular or cylindrical; the cross-section of the support member 300 can also be conical, trapezoidal, dumbbell-shaped, or other shapes.

[0192] In some embodiments of the present application, 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 size of the support member 300 along the thickness direction of the display device is larger than the design size of the interval between the display panel 100 and the light board 210.

[0193] like Figure 14 As shown in Figure a, the support member 300 is in a free contact state; in Figure b, the exciter 400 is not vibrating and the support member 300 is in a static placement state, and the support member 300 is in an interference compression state due to the extrusion of the display panel 100 and the 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.

[0194] In some embodiments, as Figure 14 As shown, the support member 300 can be connected to the light board 210 through a first adhesive structure 310, such as UV glue, double-sided tape, etc., to prevent the support member 300 from moving relative to the light board 210.

[0195] like Figure 15 As shown, the support member 300 includes a rigid portion 302 and an elastic portion 301, which are connected to each other. The rigid portion 302 is connected to the light board 210, and the elastic portion 301 is connected to the display panel 100. The height of the rigid portion 302 is greater than the height of the light source protruding from the main body of the light board 210. This ensures that the light source does not contact the display panel 100 and cause wear when the support member 300 is under pressure.

[0196] The rigid part 302 can be a hard plastic part, and the elastic part 301 can be made of an elastic material such as silicone rubber. The rigid part 302 is used as an inlay and is injection molded on its outer side to form the elastic part 301. The rigid part 302 can be bonded to the light board 210, and the connection method is simple and reliable.

[0197] The rigid part 302 can be a metal part made of easily weldable material, which is connected to the elastic part 301 by injection molding, mechanical fitting or bonding. The rigid part 302 is welded to the lamp board 210 and is firmly installed, which is conducive to batch automatic assembly.

[0198] The support member 300 of some embodiments of the present application can utilize the elastic part 301 to ensure the vibration buffering effect by providing a combination of a rigid part 302 and an elastic part 301 that are connected to each other, and can also utilize the rigid part 302 to ensure that the light source does not contact the display panel 100 and cause wear when the support member 300 is under pressure, thereby ensuring that the vibration transmission effect does not change with temperature changes.

[0199] Combine Figure 16 The two ends of the support member 300 can be connected by negative pressure adsorption. For example, suction cup structures 320 can be provided at both ends of the support member 300. The two ends of the support member 300 are fixedly connected to the light board 210 and the display panel 100 respectively through the suction cup structure 320, and the process is simple to implement.

[0200] Combine Figure 17 One end of the support member 300 is connected via a first adhesive structure 310, and the other end of the support member 300 is connected via a suction cup structure 320. For example, one end of the support member 300 is connected to the light board 210 via the first adhesive structure 310, and the other end of the support member 300 is fixedly connected to the display panel 100 via the suction cup structure 320. Thus, the support member 300 can be fixed by double-sided bonding or by mechanical 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 has the disadvantage of complex process implementation. A solution using suction cup adsorption can improve the feasibility of the solution.

[0201] 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.

[0202] 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, located on the back side of the display panel, the light board being provided with a support member supported between the display panel and the light board; an exciter connected to the light board and driving the light board to vibrate; a circuit board configured to control the light panel to emit light and the actuator to vibrate; A back panel is constructed on the back of the light panel, and includes: a first back plate configured to fix the exciter; A second backplane is arranged opposite to the circuit board and is configured to fix the circuit board; the second backplane is flexibly connected to the first backplane.

2. The display device according to claim 1, wherein The display device further includes a vibration-damping connector, which is located on the back of the back panel, and at least part of the structure of the vibration-damping connector is a flexible portion, and both ends of the vibration-damping connector are fixedly connected to the first back panel and the second back panel respectively.

3. The display device according to claim 2, wherein The vibration-damping connector includes a flexible body having a first slot and a second slot; the first back plate is embedded in the first slot toward the edge of the flexible body, and the second back plate is embedded in the second slot toward the edge of the vibration-damping connector.

4. The display device according to claim 3, wherein The first back plate forms a first connection structure toward the edge of the vibration-damping connection member, and the first connection structure is embedded in the first slot; the second back plate has a second connection structure toward the edge of the vibration-damping connection member, and the second connection structure is spaced apart from the first connection structure; the second connection structure is embedded in the second slot.

5. The display device according to claim 4, wherein: The first connecting structure includes a first connecting portion, and the second connecting structure includes a second connecting portion. The second connecting portion and the first connecting portion are opposite to each other and spaced apart along the thickness direction of the display panel. The first connecting portion is embedded in the first card slot. The second connecting portion is embedded in the second card slot.

6. The display device according to claim 5, wherein: The first clamping groove and the second clamping groove are both annular grooves provided on the peripheral wall of the flexible body; The first connecting portion is provided with a first mounting through hole, and the first connecting portion is embedded in the first slot through the first mounting through hole; The second connecting portion is provided with a second mounting through hole, and the second connecting portion is embedded in the second clamping groove through the second mounting through hole.

7. The display device according to any one of claims 3 to 6, characterized in that: The vibration-damping connector also includes a fastener. A fastening hole is provided on the flexible body. The second clamping groove is located outside the fastening hole. The fastener is fixed in the fastening hole.

8. The display device according to claim 7, wherein: The fastening hole is a through hole that passes through the flexible body.

9. The display device according to any one of claims 3 to 6, characterized in that: The cross-sectional area of the flexible body gradually decreases from the first end toward the second end, and the first card slot is arranged at the end of the flexible body with a larger cross-sectional area, and the second card slot is arranged at the end of the flexible body with a smaller cross-sectional area.

10. The display device according to any one of claims 1 to 6, characterized in that: A fixing pin is provided on the first back plate, and an elastic pad is provided on the exciter. The elastic pad is fixed to the first back plate through the fixing pin.

Images