Display device

Abstract

The embodiment of the utility model provides a display device, and relates to the technical field of display. The display device provided by the embodiment of the utility model comprises a display panel, a backlight assembly, a back plate and an exciter, wherein the display panel is configured to display image information; the backlight assembly is located on the light incident side of the display panel and comprises a plurality of lamp panels, and the lamp panels are arranged on the same plane. The back plate is arranged on the side, away from the display panel, of the backlight assembly, and the multiple lamp panels are connected with the back plate. The exciter is arranged on the side, away from the lamp panel, of the back panel and penetrates through the back panel to be connected with the lamp panel. Wherein the plurality of exciters are respectively and correspondingly connected with the plurality of lamp panels, and the plurality of exciters are configured to selectively drive the lamp panels to vibrate according to the image information so as to enable the display panel to locally vibrate and produce sound, so that the sound and picture synchronization is realized, the vibration quality and the vibration area are reduced, the energy attenuation is weakened, and the display effect is improved. And the medium-high frequency sound production performance is improved.

Description

Technical Field

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

[0002] The speakers in display devices typically use bottom-firing and rear-firing methods, resulting in a separation between the sound image position and the image position, leading to a poor viewing experience and failing to provide a unified audiovisual experience.

[0003] In related technologies, display devices can generate sound waves by directly vibrating the display panel through a sound exciter, allowing the display panel in the display device to perform both display and speaker diaphragm sound-generating functions, thus achieving a unified audiovisual effect.

[0004] However, current sound exciters drive the entire display panel to vibrate and produce sound simultaneously, resulting in large vibration mass and area, rapid energy decay, and poor mid-to-high frequency sound performance. Utility Model Content

[0005] Some embodiments of this application provide a display device that can solve the technical problems of large vibration mass and area, rapid energy attenuation, and poor mid-to-high frequency sound production performance when display devices vibrate to produce sound.

[0006] In some embodiments, a display device is provided, comprising a display panel, a backlight assembly, a backplate, and an actuator. The display panel is configured to display image information. The backlight assembly is located on the light-incident side of the display panel and includes a plurality of lamp panels arranged in a plane, with a cavity formed between the lamp panels and the display panel. The backplate is disposed on the side of the backlight assembly away from the display panel, and the plurality of lamp panels are respectively connected to different positions on the backplate. The actuator is disposed on the side of the backplate away from the lamp panels and passes through the backplate to connect to the lamp panels. The actuator is a plurality of lamp panels, each corresponding to at least a portion of the plurality of lamp panels. The actuators are configured to selectively drive the lamp panels to vibrate according to the image information, and the lamp panels transmit the vibration to the display panel to cause localized vibration of the display panel to generate sound.

[0007] The display device provided in some embodiments of this application divides the backlight assembly into multiple lamp panels, each independently connected to a back panel. Different lamp panels can be driven by different exciters to vibrate and generate sound independently, achieving localized vibration sound generation on the display panel. This reduces vibration mass and area, weakens energy attenuation, and improves mid-to-high frequency sound performance while achieving audio-visual synchronization. Furthermore, localized vibration sound generation improves the accuracy and sensitivity of the sound generation position, allowing the sound generation position of the display device to change with image changes, achieving sound tracking of the image.

[0008] In some embodiments, multiple light panels are arranged sequentially along the length of the display panel, and the multiple light panels form multiple sound-emitting zones; the multiple sound-emitting zones are symmetrically arranged with respect to the central axis of the display device.

[0009] With this setup, multiple light panels vibrate and produce sound independently, allowing multiple sound-producing zones to operate relatively independently and achieve a more precise sound-tracking image effect.

[0010] In some embodiments, the multiple light panels may include a first light panel and a second light panel, wherein at least one exciter is connected to the first light panel and no exciter is provided on the second light panel; each sound-emitting zone corresponds to at least one first light panel.

[0011] In this configuration, different sound-emitting zones are arranged adjacent to each other; or, at least one second light panel is arranged between different sound-emitting zones.

[0012] With this setup, different sound-producing zones can form different sound channels, allowing each channel of the display device to produce sound through panel vibration.

[0013] In some embodiments, the multiple sound zones may include a left main channel zone and a right main channel zone; the left main channel zone and the right main channel zone are symmetrically arranged with respect to the central axis of the display device, and the left main channel zone and the right main channel zone correspond to at least two first lamp panels respectively; a second lamp panel is disposed between the left main channel zone and the right main channel zone.

[0014] In some embodiments, the multiple sound-emitting zones may include a left main channel zone, a right main channel zone, and a center channel zone, which are arranged adjacent to each other along the length of the display panel; the left main channel zone, the center channel zone, and the right main channel zone each correspond to at least two first light panels; a second light panel is provided on the side of the left main channel zone away from the center channel zone; and a second light panel is provided on the side of the right main channel zone away from the center channel zone.

[0015] In some embodiments, the multiple sound-emitting zones may include a left main channel zone, a right main channel zone, a center channel zone, a left surround channel zone, and a right surround channel zone, wherein the left surround channel zone, the left main channel zone, the center channel zone, the right main channel zone, and the right surround channel zone are arranged adjacent to each other along the length of the display panel; the second light panel is disposed below the sound-emitting zones.

[0016] In some embodiments, the display device may further include a first adhesive member, with a gap between the back plate and the lamp plate, the first adhesive member being disposed within the gap, and both sides of the first adhesive member being bonded to the back plate and the lamp plate respectively.

[0017] This setup improves the stability of the light panel installation.

[0018] In some embodiments, the first adhesive is located between two adjacent light panels; the first adhesive extends along the seam between the two adjacent light panels.

[0019] This setup ensures good sealing between adjacent light panels.

[0020] In some embodiments, the display device may further include a second adhesive member, the first side of which may be bonded to the lamp panel; the back plate is provided with an opening through which the actuator passes and is bonded to the second side of the second adhesive member.

[0021] This configuration ensures that the back panel is positioned as close as possible to the light panel, reducing the overall thickness of the display device.

[0022] In some embodiments, the display device may further include an optical film assembly disposed between the lamp panel and the display panel; a sealed gas layer is provided between the lamp panel and the optical film assembly, and when the exciter drives the lamp panel to vibrate, the lamp panel drives the display panel to vibrate and generate sound through the gas layer.

[0023] This configuration can improve the vibration transmission efficiency from the lamp panel to the display panel.

[0024] Some embodiments of this application provide a display device, including a display panel, a backlight assembly, a backplate, and an exciter. The display panel is configured to display image information. The backlight assembly is located on the light-incident side of the display panel and includes multiple lamp panels arranged on the same plane. The backplate is disposed on the side of the backlight assembly away from the display panel, and the multiple lamp panels are respectively connected to the backplate. The exciter is disposed on the side of the backplate away from the lamp panels and passes through the backplate to connect with the lamp panels. Multiple exciters are configured to selectively drive the lamp panels to vibrate according to the image information, so that the display panel vibrates locally to generate sound. This achieves audio-visual synchronization while reducing vibration mass and area, weakening energy attenuation, improving mid-to-high frequency sound performance, and enhancing the accuracy and sensitivity of the sound emission position. The sound emission position of the display device can change with the image, achieving sound tracking of the image.

[0025] In addition to the technical problems solved by the embodiments of this application, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions described above, other technical problems that can be solved by the display devices provided in some embodiments of this application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of a display device according to some embodiments of this application;

[0028] Figure 2 This is a cross-sectional view of a display device according to some embodiments of this application;

[0029] Figure 3 Partial cross-sectional view of a display device according to some embodiments of this application. Figure 1 ;

[0030] Figure 4 This is a schematic diagram showing the distribution of a first type of sound-emitting zone in a display device according to some embodiments of this application;

[0031] Figure 5 This is a schematic diagram showing the distribution of the second type of sound-emitting zone in a display device according to some embodiments of this application;

[0032] Figure 6 This is a schematic diagram showing the distribution of the third sound-emitting zone of a display device according to some embodiments of this application;

[0033] Figure 7 This is a schematic diagram showing the distribution of a fourth sound-emitting zone in a display device according to some embodiments of this application;

[0034] Figure 8 This is a schematic diagram showing the distribution of the actuators in some embodiments of the display device of this application;

[0035] Figure 9 Partial cross-sectional view of a display device according to some embodiments of this application. Figure 2 ;

[0036] Figure 10 This is a cross-sectional schematic diagram of the actuator of a display device according to some embodiments of this application;

[0037] Figure 11 This is a cross-sectional schematic diagram of the spindle of a display device according to some embodiments of this application;

[0038] Figure 12 This is a schematic diagram of the structure of the spring wave of the display device according to some embodiments of this application;

[0039] Figure 13 This is a schematic diagram of the structure of the spring wave of the display device according to some embodiments of this application;

[0040] Figure 14 This is a cross-sectional schematic diagram of the spindle of a display device according to some embodiments of this application;

[0041] Figure 15 This is a cross-sectional schematic diagram of the spindle of a display device according to some embodiments of this application;

[0042] Figure 16 This is a schematic diagram of the structure of the spring wave of the display device according to some embodiments of this application;

[0043] Figure 17 This is a schematic diagram of the structure of the spring wave of a display device according to some embodiments of this application.

[0044] Explanation of reference numerals in the attached figures:

[0045] 100 - Display panel; 110 - Optical film assembly;

[0046] 200 - Backlight assembly; 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 - Subwoofer area; 210 - Lamp panel; 210a - First lamp panel; 210b - Second lamp panel;

[0047] 300 - Support component;

[0048] 400-Actuator; 410-Actuator element; 411-Connecting structure; 420-Spider wave; 4201-Body part; 4202-First connecting part; 4203-Second connecting part; 421-Fiber layer; 422-Heat-conducting layer; 423-Heat-conducting film; 4231-Heat dissipation hole; 430-Outer shell; 440-Pressure ring; 450-Magnetic assembly; 451-Magnetic conductor; 452-Magnetic component; 460-Elastic pad;

[0049] 500 - Back panel; 503 - Opening;

[0050] 600 - First adhesive component;

[0051] 700 - Second adhesive component;

[0052] M - Gas layer. Detailed Implementation

[0053] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this application, but not all embodiments.

[0054] First, those skilled in the art should understand that these embodiments are merely for explaining the technical principles of this application and are not intended to limit the scope of protection of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0055] Secondly, it should be noted that in the description of this application, the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., which indicate the direction or positional relationship, are based on the direction or positional relationship shown in the accompanying drawings. This is only for the convenience of description and is not intended to indicate or imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.

[0056] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0057] Furthermore, it should be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0058] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0059] Flat panel displays, televisions, and other display devices can be used to display images. Taking a liquid crystal display (LCD) device as an example, an LCD device mainly consists of a backlight assembly, a liquid crystal panel, and a driving circuit. The liquid crystal panel, as the display panel, does not emit light itself; it relies on the light source provided by the optical elements in the backlight assembly to achieve brightness display. The display principle of an LCD is to place liquid crystal between two conductive glass plates. Driven by the electric field between two electrodes, the liquid crystal molecules undergo a twisting nematic electric field effect, which controls the transmission or blocking function of the backlight, thereby displaying the image. Adding a color filter allows for the display of color images.

[0060] In the display device, the backlight module can be a direct-lit backlight module. In this case, the backlight module has a lamp panel to provide backlight to the display panel through the light source of the lamp panel. When the lamp panel vibrates, it compresses the gas in the cavity on the light-emitting side of the lamp panel, and transmits the vibration to the display panel through the cavity to drive the display panel to vibrate. The display panel produces sound through the sound waves emitted by the vibration, so that the display panel can both display images and replace the speaker to produce sound.

[0061] The gap size of the cavity on the light-emitting side of the lamp board can be determined according to the light source of the lamp board, for example, the gap size is related to the size of the light source. Light sources such as sub-millimeter light-emitting diodes (e.g., Mini-LEDs) have a more compact size, thus allowing for a smaller gap between the backlight board and the LCD panel, thereby reducing the cavity thickness and improving the vibration transmission effect. Therefore, in this embodiment, the light source of the backlight module is described as a sub-millimeter light-emitting diode (Mini-LED).

[0062] For example, the cavity gap can be from 0.3mm to 10mm, with a maximum gap of 10mm. Alternatively, the gap can be 0.3mm or 1mm. For instance, when the cavity gap is 1mm, the cavity thickness is relatively small, which improves the transmission efficiency of the vibration force output by the exciter. Or, when the cavity gap is 0.3mm, the exciter is closer to the display panel, resulting in stronger vibration and better sound production. Conversely, when the cavity gap is 10mm, the cavity thickness is relatively large, which can prevent the display panel and the light source from colliding at a certain position during vibration. Specifically, the cavity gap 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 values ​​and ranges involved in the embodiments of this 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.

[0063] In related technologies, compared to display devices using OLED light sources, OLED displays are self-emissive screens with inherent flexibility. Therefore, by placing an exciter on the back of the OLED display, the screen can elastically deform and generate sound under the excitation vibration of the exciter. However, in liquid crystal displays (LCDs), which have backlight modules, it's impossible to directly place an exciter on the back of the display panel. Furthermore, the lamp board in the backlight module is relatively rigid, making it difficult to couple and transmit its vibration to the display panel, resulting in low vibration transmission efficiency. Therefore, a support structure can be placed between the display panel and the lamp board in Mini-LED displays or other LCD devices. This support structure acts as a vibration transmission medium, transmitting 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. Additionally, the support structure keeps the gap between the lamp board and the display panel within a preset range, preventing the light source and display panel from colliding at a certain location, thus avoiding collision noise and abrasion risks.

[0064] In addition, compared to the lamp panels in OLED display devices, the lamp panels in Mini-LED display devices are more rigid. The exciter on the back plate drives the entire Mini-LED lamp panel to vibrate together, resulting in a large vibration mass and vibration area, rapid vibration energy decay, and poor mid-to-high frequency sound production.

[0065] Some embodiments of this application provide a display device that divides the backlight assembly into multiple independent lamp panels. Different exciters drive different lamp panels to emit sound locally. The different lamp panels do not interfere with each other when vibrating to emit sound, thus improving the reliability of vibration-based sound generation. While achieving audio-visual synchronization, it reduces vibration energy attenuation, improves mid-to-high frequency sound effects, and avoids lamp panel damage or optical diaphragm wear. Furthermore, lamp panels in different areas can be individually controlled by exciters to vibrate and emit sound locally according to the image, thereby achieving a sound-tracking-image effect.

[0066] <Composition of a display device>

[0067] Figure 1 This is a schematic diagram of the structure of a display device according to some embodiments of this application. Figure 2 This is a cross-sectional view of a display device according to some embodiments of this application. Figure 3 Partial cross-sectional view of a display device according to some embodiments of this application. Figure 1 .

[0068] like Figures 1 to 3 As shown, some embodiments of this application provide a display device including a display panel 100.

[0069] In some embodiments, the display device includes a backlight assembly 200, which is located on the light-incident side of the display panel 100 and can provide the display panel 100 with the light required for display.

[0070] In some embodiments, the display device includes a back panel 500.

[0071] In some embodiments, the display device includes an exciter 400, which is configured to drive the lamp panel 210 to vibrate and produce sound. The exciter 400 can drive the lamp panel 210 to generate multiple sound zones, and different sound zones can correspond to different sound channels, so that the display device can have a multi-channel sound effect.

[0072] In some embodiments, the backlight assembly 200 may include a lamp panel 210 configured to emit light.

[0073] In some embodiments, the backlight assembly 200 may include an optical film assembly 110, and the lamp panel 210 may provide some support for the optical film assembly 110.

[0074] In some embodiments, a backplate 500 is disposed on the side of the backlight assembly 200 opposite to the display panel 100, and the backplate 500 can support the lamp panel 210. The actuator 400 can be mounted on the backplate, or the actuator 400 can be directly mounted on the lamp panel 210.

[0075] In some embodiments, the backlight assembly 200 includes a plurality of lamp panels 210 arranged on the same plane, with a cavity formed between the lamp panels 210 and the display panel 100. The plurality of lamp panels 210 are respectively connected to a back plate 500, allowing them to be relatively independent. An exciter 400 is disposed on the side of the back plate 500 opposite to the lamp panels 210, and the exciter 400 passes through the back plate 500 and is connected to the lamp panels 210. The exciter 400 drives the lamp panels 210 to vibrate, and the lamp panels 210 can transmit the vibration to the optical film assembly 110 and the display panel 100, causing the display panel 100 to vibrate and produce sound, achieving a synchronized audio-visual effect.

[0076] The device includes multiple exciters 400, each connected to a corresponding lamp panel 210. The multiple exciters 400 are configured to selectively drive the lamp panel 210 to vibrate based on image information.

[0077] When a portion of the light panel 210 vibrates and generates sound, and transmits the vibration to the display panel 100, the display panel 100 can vibrate and generate sound locally, thereby improving the accuracy and sensitivity of the sound generation position. The sound generation position of the display device can change with the image, achieving the effect of sound tracking the image.

[0078] Furthermore, the multiple lamp panels 210 are independent of each other. When one lamp panel 210 equipped with the exciter 400 vibrates, it will not affect the other lamp panels 210, meaning the other lamp panels 210 will not vibrate. Therefore, by driving the vibration of some lamp panels 210 according to the display image exciter 400, the vibration mass and vibration area can be reduced, the energy attenuation block can be reduced, the reliability of the lamp panels 210 and optical structures can be improved, problems such as lamp panel 210 damage or optical film wear can be avoided, and the display quality of the display device can be improved.

[0079] In some embodiments, taking into account factors such as the size of the display device and the manufacturing process of the lamp panel 210, the size of the display device can be matched with the sum of the areas of the multiple lamp panels 210, that is, there can be multiple lamp panels 210, and the multiple lamp panels 210 are arranged in an array.

[0080] It should be noted that in the display device provided in this application embodiment, the lamp board 210 can be a Mini-LED board, and the light of each lamp board 210 can be controlled independently, so that the display panel 100 has higher positioning accuracy when displaying images. In addition, the display device can also be a laser TV. This application embodiment does not limit the specific image display principle of the display device, as long as the display panel 100 can vibrate and produce sound by vibrating the lamp board 210 through the exciter 400.

[0081] The following sections will describe each part of the display device in turn.

[0082] [Display Panel]

[0083] Please continue to refer to Figures 1 to 3 The display panel 100 is configured to display images. The display panel 100 includes a display area and a circuit board located on one side of the display area. The circuit board drives the display of the entire display panel 100.

[0084] The display panel 100 includes a top side, a left side, a right side, and a ground side, wherein the top side and the ground side are opposite to each other, the left side and the right side are opposite to each other, the top side is connected to one end of the left side and one end of the right side respectively, and the ground side is connected to the other end of the left side and the other end of the right side respectively.

[0085] For example, the display panel 100 can be a liquid crystal display panel, which specifically includes a color filter (CF) substrate, a thin film transistor (TFT) substrate (also called an array substrate), and a liquid crystal (LC) layer, with the liquid crystal layer located between the color filter substrate and the array substrate. The TFT substrate has data lines and scan lines. By controlling the energization of the data lines and scan lines, the orientation of the liquid crystal molecules is changed, so that light from the light source is emitted through the color filter substrate to generate an image of a preset color.

[0086] [Optical film assembly]

[0087] Please continue to refer to Figures 1 to 3 The optical film assembly 110 may include a reflective sheet that reflects light generated by the light source in the light-emitting direction, thereby distributing the light emitted by the light source evenly. For example, the reflective sheet may be made of polyethylene glycol terephthalate (PET).

[0088] In some embodiments, the optical film assembly 110 may include a light guide plate, which can utilize refraction and total internal reflection to emit light from its incident side to its emitting side, converting a line light source into a surface light source. For example, the light guide plate may be made of glass, polymethyl methacrylate (PMMA), polycarbonate (PC), etc.

[0089] In some embodiments, the optical film assembly 110 may include components such as optical films, and the optical film assembly 110 is located on the light-incident side of the display panel 100. The optical film is located on the light-emitting side of the light guide plate and is used to brighten the light. The optical film may include one or more films, and may include at least one of prism film and brightness enhancement film.

[0090] In some embodiments, the display panel 100 and the optical film assembly 110 can be pressed together to avoid an air gap between the liquid crystal screen and the optical film assembly 110 that allows air to flow between them. Exemplarily, the liquid crystal screen and the optical film assembly 110 can also be bonded together, for example, using photosensitive adhesive (UV adhesive), foam, double-sided tape, etc. Thus, the vibration of the lamp panel 210, after being transmitted to the optical film assembly 110, can be directly transmitted to the display panel 100 through the optical film assembly 110, causing the display panel 100 to vibrate and produce sound.

[0091] In other embodiments, there may be a gap between the display panel 100 and the optical film assembly 110, which is a sealed space. After the light panel 210 vibrates the optical film assembly, the vibration of the optical film assembly 110 will utilize the viscosity of the air in the gap between the display panel 100 and the optical film assembly 110 to transmit the vibration to the display panel 100, causing the display panel 100 to vibrate and produce sound.

[0092] [Lightboard]

[0093] Please continue to refer to Figures 1 to 3 In some embodiments of this application, there are multiple light panels 210, which are assembled together and operate independently to form a complete light-emitting panel. The shape of the light panel 210 can be square, and the specific length and width dimensions of each light panel 210 are not limited in the embodiments of this application.

[0094] Each light panel 210 may be provided with multiple light sources, which may be arranged in an array on the light panel 210. For example, the light source may be a strip light bar provided on the light panel 210, and the light bar has multiple light-emitting diodes (LEDs) arranged in sequence. The light-emitting diodes may be Mini-LEDs. In addition, there may be multiple light bars, which may be arranged in sequence at intervals.

[0095] In some embodiments, a plurality of lamp panels 210 are arranged sequentially along the length of the display panel 100, and the plurality of lamp panels 210 form a plurality of sound-emitting zones. The plurality of sound-emitting zones are symmetrically arranged with respect to the central axis of the display device. The plurality of lamp panels 210 vibrate independently to produce sound, so that the plurality of sound-emitting zones can be relatively independent, and the effect of sound tracking image can be achieved more accurately.

[0096] It is understandable that an exciter 400 can be set on each light panel 210, or an exciter 400 can be set on some light panels 210. The specific setting can be determined according to the number of sound-emitting zones to be formed. The more sound-emitting zones the display device has, the more light panels 210 can be equipped with exciters 400.

[0097] Figure 4This is a schematic diagram showing the distribution of a first type of sound-emitting zone in a display device according to some embodiments of this application.

[0098] Please refer to Figures 2 to 4 In some embodiments, the plurality of light panels 210 may include a first light panel 210a and a second light panel 210b. At least one exciter 400 is connected to the first light panel 210a, while no exciter 400 is provided on the second light panel 210b. Each sound-emitting zone corresponds to at least one first light panel 210a. Different sound-emitting zones are arranged adjacent to each other; alternatively, at least one second light panel 210b is arranged between different sound-emitting zones.

[0099] It is understandable that the exciter 400 directly drives the first lamp board 210a to vibrate. 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 vibration area formed by each first lamp board 210a is small, which can improve the vibration sensitivity and high frequency extension, and improve the transmission performance of the display panel 100.

[0100] Furthermore, since the exciter 400 directly drives the lamp plate 210 to vibrate without the need for a sound-emitting plate structure, the overall thickness of the display device can be reduced, and the production cost of the product can be lowered.

[0101] For example, the multiple light panels 210 can be arranged in two rows, one above the other. The lower row consists of multiple second light panels 210b, and the corresponding display panel 100 can emit bass sound. The upper row consists of multiple first light panels 210a or a combination of first light panels 210a and second light panels 210b, used to form the sound emission zone of each channel. The second light panels 210b located in the lower row can form a bass zone 206, used to emit low-frequency sounds.

[0102] The following provides detailed examples of different numbers of vocal zones.

[0103] Please continue to refer to Figure 4 In a first possible implementation, the multiple sound-emitting zones may include a left main channel zone 201 and a right main channel zone 202, which are symmetrically arranged with respect to the central axis of the display device. The left main channel zone 201 and the right main channel zone 202 each correspond to at least two first lamp panels 210a. A second lamp panel 210b is disposed between the left main channel zone 201 and the right main channel zone 202.

[0104] Understandably, the left main channel area 201 can be equipped with two first light panels 210a, and the right main channel area 202 can be equipped with two first light panels 210a. Each first light panel 210a is equipped with an exciter 400, and each exciter 400 independently drives the vibration of its respective first light panel 210a. This avoids mutual interference between the vibrations of the left main channel area 201 and the right main channel area 202.

[0105] Figure 5 This is a schematic diagram showing the distribution of a second type of sound-emitting zone in a display device according to some embodiments of this application.

[0106] Please refer to Figure 5 In a second possible implementation, the multiple sound-emitting zones may include a left main channel zone 201, a right main channel zone 202, and a center channel zone 203, which are arranged adjacent to each other along the length of the display panel 100. The left main channel zone 201, center channel zone 203, and right main channel zone 202 each correspond 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 opposite to the center channel zone 203. A second light panel 210b is also provided on the side of the right main channel zone 202 opposite to the center channel zone 203.

[0107] Understandably, the left main channel area 201, the right main channel area 202, and the center channel area 203 can each have two first light panels 210a. Each first light panel 210a is equipped with an exciter 400, which independently drives the vibration of each first light panel 210a. This avoids mutual interference between the vibrations of the left main channel area 201, the right main channel area 202, and the center channel area 203.

[0108] Figure 6 This is a schematic diagram showing the distribution of a third sound-emitting zone in a display device according to some embodiments of this application.

[0109] Please refer to Figure 6 In a third possible implementation, the multiple sound-emitting 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, left main channel zone 201, center channel zone 203, right main channel zone 202, and right surround channel zone 205 are arranged adjacent to each other along the length of the display panel 100. A second light panel is positioned below the sound-emitting zones.

[0110] Understandably, the difference from the previous implementation lies in the addition of a left surround channel area 204 and a right surround channel area 205. The left surround channel area 204 can be equipped with a corresponding first light panel 210a, and the right surround channel area 205 can be equipped with a corresponding first light panel 210a. Each first light panel 210a is equipped with an exciter 400, and each exciter 400 independently drives the vibration of its respective first light panel 210a. This avoids mutual interference between the vibrations of the left main channel area 201, right main channel area 202, center channel area 203, left surround channel area 204, and right surround channel area 205. The left and right channels, as well as the surround channels, can all emit sound towards the front of the display panel 100 of the display device, resulting in better sound quality.

[0111] Figure 7 This is a schematic diagram showing the distribution of a fourth sound-emitting zone in a display device according to some embodiments of this application.

[0112] Please refer to Figure 7 In the 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. The difference from the third implementation is that the fourth implementation does not include a center channel zone 203. The specific layout of the light panel 210 for this implementation will not be described in detail in this embodiment.

[0113] Figure 8 This is a schematic diagram showing the distribution of the actuators in some embodiments of the display device of this application.

[0114] It should be noted that in this embodiment, more sound-emitting zones can be set, and other arrangements of sound-emitting zones can be adopted. It is sufficient that the first lamp plate 210a corresponding to each sound-emitting zone is independent of each other and is directly driven to vibrate by different exciters 400. Each lamp plate 210 can be provided with one, two, or more exciters 400, and the exciters 400 can be arranged at intervals along the horizontal direction. Alternatively, please refer to... Figure 8 The exciters 400 can be arranged at intervals along the vertical direction, but this application embodiment does not specifically limit this.

[0115] [Backplate]

[0116] Please continue to refer to Figures 2 to 4 In some embodiments of this application, the back plate 500 may be square, and the back plate 500 serves to support the lamp plate 210 on the side of the lamp plate 210 away from the display panel 100. The actuator 400 and the back plate 500 may be located on the same side of the lamp plate 210, and the gap between the back plate 500 and the lamp plate 210 is small. The actuator 400 may be located on the side of the back plate 500 away from the lamp plate 210 and pass through the back plate 500 to connect with the lamp plate 210.

[0117] The back plate 500 and the lamp plate 210 can be flat. Since the exciter 400 directly passes through the back plate 500 and connects to the lamp plate 210, there is no need to reserve a gap between the back plate 500 and the lamp plate 210 to set up the sound-emitting plate, thus reducing the thickness of the whole machine.

[0118] In some embodiments, the display device may further include a first adhesive member 600, with a gap between the back plate 500 and the lamp plate 210, the first adhesive member 600 being disposed in the gap, and both sides of the first adhesive member 600 being bonded to the back plate 500 and the lamp plate 210 respectively, thereby improving the installation stability of the lamp plate 210.

[0119] It is understandable that the first adhesive 600 can be a double-sided adhesive strip with a certain thickness. Each light panel 210 is bonded to the back plate 500 through the first adhesive 600. Since the back plate 500 is a complete whole, fixing each light panel 210 to the back plate 500 through the first adhesive 600 can ensure that the multiple light panels 210 have precise installation positions relative to each other and avoid interference between local light panels 210 and other light panels 210 when vibrating.

[0120] In some embodiments, the first adhesive 600 is located between two adjacent lamp panels 210; the first adhesive 600 extends along the seam between the two adjacent lamp panels 210, thereby ensuring good sealing between the adjacent lamp panels 210.

[0121] It is understood that the optical film assembly 110 is disposed between the lamp panel 210 and the display panel 100; there is a sealed gas layer M between the lamp panel 210 and the optical film assembly 110. When the exciter 400 drives the lamp panel 210 to vibrate, the lamp panel 210 drives the display panel 100 to vibrate and produce sound through the gas layer M, which can improve the vibration transmission efficiency from the lamp panel 210 to the display panel 100.

[0122] The first adhesive 600 is simultaneously bonded between two adjacent lamp panels 210, ensuring good sealing of the gas layer M between the lamp panel 210 and the optical film assembly 110. Vibration is transmitted to the optical film assembly 110 and the front display panel 100 through the air in the gas layer M, thereby achieving the integration of sound and image.

[0123] In some embodiments, the display device may further include a second adhesive member 700, the first side of which can be bonded to the lamp panel 210; the back plate 500 is provided with an opening 503, through which the exciter 400 passes and is bonded to the second side of the second adhesive member 700, thereby ensuring that the back plate 500 is positioned as close as possible to the lamp panel 210, thereby reducing the overall thickness of the display device.

[0124] For example, the second adhesive 700 can be double-sided tape.

[0125] In this embodiment, the lamp panel 210 can also be connected to the back panel 500 in other ways, including but not limited to snap-fit, threaded fasteners, support plates, elastic blocks, etc.

[0126] For example, the light panel 210 and the back panel 500 may each be provided with interlocking buckles, and when the light panel 210 and the back panel 500 are assembled, the buckles on the two are interlocked.

[0127] For example, the lamp panel 210 and the back plate 500 are respectively provided with mounting holes, and the two can be connected from one side of the back plate by using threaded fasteners passing through the mounting holes on the lamp panel 210 and the back plate 500.

[0128] For example, the lamp panel 210 and the back panel 500 can be connected by a support plate. The support plate is elastic, and its two ends are connected to the lamp panel 210 and the back panel 500 by screws or by double-sided adhesive.

[0129] For example, the lamp panel 210 and the back panel 500 can be connected by an elastic block. The elastic block can be cylindrical, frustum-shaped, or other structures. The two ends of the elastic block can abut against the lamp panel 210 and the back panel 500 respectively, and the two ends of the elastic block can be bonded to the lamp panel 210 and the back panel 500 respectively.

[0130] [Actuator]

[0131] In some embodiments, the exciter 400 can be any one or more of an electromagnetic exciter, a magnetostrictive exciter, and a piezoelectric exciter, offering high applicability. In some embodiments, the exciter 400 may further include a magnetic field generating unit (e.g., a magnet) and a vibration coil. The magnetic field generating unit generates a magnetic field, and by inputting a constantly changing current into the vibration coil, the force exerted on the vibration coil in the magnetic field generated by the magnetic field generating unit changes continuously, thereby generating vibration.

[0132] Figure 10 This is a cross-sectional schematic diagram of the actuator of a display device according to some embodiments of this application. Figure 11 This is a cross-sectional schematic diagram of the spider of a display device according to some embodiments of this application. Figure 12 This is a schematic diagram of the structure of the spring wave in the display device of some embodiments of this application. Figure 13 This is a schematic diagram of the structure of the spring wave in the display device of some embodiments of this application. Figure 14 This is a cross-sectional schematic diagram of the spider of a display device according to some embodiments of this application. Figure 15 This is a cross-sectional schematic diagram of the spider of a display device according to some embodiments of this application. Figure 16 This is a schematic diagram of the structure of the spring wave in the display device of some embodiments of this application. Figure 17 This is a schematic diagram of the structure of the spring wave of a display device according to some embodiments of this application.

[0133] Please refer to Figures 10 to 17 In some embodiments, the exciter 400 includes an actuator 410, the vibration output end of which is connected to the splice of the lamp panel 210.

[0134] In some embodiments, the actuator 400 includes a spring 420, one end of which is connected to the actuator 410 and the other end of which is connected to the housing 430.

[0135] In some embodiments, the actuator 400 includes a housing 430.

[0136] When the exciter 400 is activated, the actuator 410 vibrates and drives the lamp panel 210 to vibrate. The vibration force is transmitted to the display panel 100 through the gas in the gas layer M, thereby causing the display panel 100 to vibrate and produce sound. In this way, the display device of this embodiment can achieve front-side sound generation, and the sound image position is approximately coincident with the center position of the screen, achieving audio-visual integration and providing users with a better audio-visual experience.

[0137] In some embodiments, the central axis of the exciter 400 is perpendicular to the lamp plate 210, and the vibration output direction of the exciter 400 is along its central axis and perpendicular to the surface of the display device.

[0138] The vibration output end of the actuator 410 forms a connection structure 411 to increase the connection area between the actuator 410 and the lamp panel 210 and prevent the actuator 410 from detaching from the lamp panel.

[0139] In some embodiments, the connection structure 411 is sheet-like, which allows the actuator 410 and the lamp plate 210 to have a larger connection area, and the sheet-like structure helps to reduce the weight of the actuator 400.

[0140] The central axis of the spring wave 420 in this embodiment coincides with the central axis of the actuator 400. The spring wave 420 includes a body portion 4201, a first connecting portion 4202, and a second connecting portion 4203. The body portion 4201 is arranged in a plane parallel to the display panel, and is annular and wavy in the radial direction to make the spring wave 420 elastic. The inner end of the body portion 4201 is bent to form the first connecting portion 4202, which is connected to the actuator 410. The outer end of the body portion 4201 is bent to form the second connecting portion 4203, which is connected to the outer casing 430. The second connecting portion 4203 can be directly connected to the outer casing 430, or it can be indirectly connected to the outer casing 430 through other components.

[0141] For example, both the first connecting part 4202 and the second connecting part 4203 are sheet-like structures, which helps to increase the connection area between the spring wave 420 and the outer shell 430 and the actuator 410, which not only helps to improve the stability of the connection, but also facilitates heat transfer.

[0142] In some embodiments of this application, the exciter 400 uses a spring wave 420 to transfer the heat generated by the vibration of the actuator 410 to the housing 430 for heat dissipation. Thus, the heat generated by the actuator 410 can be dissipated not only through air cooling but also through the spring wave 420, which helps to reduce the temperature of the actuator 410 and minimize the impact of localized temperature on image display quality. Furthermore, by providing a first connecting portion 4202 to increase the connection area with the actuator 410 and by providing a second connecting portion 4203 to increase the connection area with the housing 430, the heat dissipation effect is improved.

[0143] In some embodiments of this application, the spindle 420 increases the heat conduction path of the actuator 410. The thermal conductivity of the spindle 420 is approximately 3 to 4 times that of copper, and the lateral thermal conductivity of the spindle 420 can reach 1000 W / m·K. Its efficiency is significantly better than air heat dissipation, which can reduce the temperature of the actuator 410, reduce the local temperature of the display device screen, avoid the appearance of "hot" spots on the screen, reduce the unevenness of screen brightness and color, and increase the maximum power and operational reliability of the exciter or speaker.

[0144] The thermal conductivity of the spring wave 420 in some embodiments of this application is several times that of ordinary metal materials such as copper and aluminum, so that the heat of the actuator 410 can be mainly transferred to the exciter body through the spring 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.

[0145] In some embodiments, the spring 420 is bonded to the actuator 410 and the housing 430 respectively. For example, the spring 420 is bonded to the actuator 410 and the housing 430 respectively with glue, which is a simple and stable connection method.

[0146] In some embodiments, the elastic wave 420 includes a fiber layer 421 and a thermally conductive layer 422 stacked together. The fiber layer 421 includes, but is not limited to, mesh fabric, fiberglass mesh fabric, etc., and is subjected to resin impregnation and curing treatment. The thermally conductive layer 422 can be a graphene film, which can be prepared by using flake graphite as raw material, oxidizing it to form graphene oxide slurry, and then coating, sintering, calendering, and other processes. Alternatively, the thermally conductive layer 422 can be formed by coating or spraying thermally conductive materials onto the fiber layer 421.

[0147] In some examples, the thermally conductive layer 422 is flexible, which allows the elastic wave 420 to have a certain elastic deformation capability.

[0148] One possible manufacturing process for Tamper 420 includes: on the one hand, using flake graphite as raw material, performing oxidation and slurry preparation processes to form graphene oxide slurry; then coating it into a base film, followed by sintering, reduction, and calendering processes to form a graphene film; on the other hand, using fiber mesh cloth as raw material, impregnating the fiber mesh cloth in resin to form a fiber film; finally, stacking the graphene film and the fiber film, embossing it into a wavy shape, and after curing, forming Tamper 420 with high thermal conductivity.

[0149] In some embodiments of this application, the spring wave 420 utilizes a fiber layer 421 as a skeleton and is formed by combining the fiber layer 421 and the thermally conductive layer 422. It not only has elasticity but also high thermal conductivity, which facilitates the transfer of heat generated by the actuator 410 to the housing 430, thereby reducing the transfer of heat generated by the actuator 410 to the display panel.

[0150] In some embodiments, the elastic wave 420 includes a fiber layer 421 and a thermally conductive layer 422 stacked together, wherein the fiber layer 421 is provided in two layers and the thermally conductive layer 422 is located between the two fiber layers 421.

[0151] In other embodiments, the spindle 420 includes a fiber layer 421 and a thermally conductive layer 422 stacked together, the thermally conductive layer 422 having two layers, with the fiber layer 421 located between the two thermally conductive layers 422.

[0152] In some other embodiments, the spinner 420 includes multiple fiber layers 421 and multiple thermal conductive layers 422, which are arranged in an alternating stacked manner.

[0153] In some embodiments of this application, the spindle 420 improves its structural strength by providing multiple fiber layers 421 and improves its thermal conductivity by providing multiple thermally conductive layers 422.

[0154] In some embodiments, the thermally conductive layer 422 contacts the outer casing 430, which facilitates improved heat transfer efficiency and thus improved heat dissipation efficiency of the actuator 410. When the thermally conductive layer 422 is located on at least one surface of the spring 420, the surface directly contacts the outer casing 430; when the thermally conductive layer 422 is located in the inner layer of the spring 420, for example, when the thermally conductive layer 422 is located between two fiber layers 421, the fiber layer 421 of the spring 420 facing the outer casing 430 is provided with a notch, so that the thermally conductive layer 422 is disposed on the surface of the spring 420 and thus contacts the outer casing 430. The fiber layer 421 corresponding to the second connecting portion 4203 of the spring 420 is provided with a notch, so that the thermally conductive layer 422 is disposed on the surface of the spring 420 and the surface contacts the outer casing 430.

[0155] It is understandable that the thermal conductive layer 422 can directly contact the outer casing 430, or the thermal conductive layer 422 can indirectly contact the outer casing 430 through other components.

[0156] In some embodiments of this application, the spring wave 420 includes a thermally conductive film 423 and a fiber layer 421 stacked together. The thermally conductive film 423 is provided with a plurality of heat dissipation holes 4231. The material and preparation method of the fiber layer 421 can be the same as in the above embodiments, and then the thermally conductive film 423 is formed. The thermally conductive film 423 is then bonded or heat-fused to form an integral spring wave 420. The heat dissipation holes 4231 provided on the thermally conductive film 423 can be circular holes, elliptical holes, polygonal holes, irregularly shaped holes, etc.; the plurality of heat dissipation holes 4231 can be arranged in a matrix on the thermally conductive film 423, such as a rectangular matrix, a circular matrix, etc. The embodiments of this application do not limit the number, shape, or arrangement of the heat dissipation holes 4231.

[0157] For example, the thickness of the thermal conductive film 423 can be 100μm to 1000μm, such as 200μm, 300μm, 400μm, 500μm, 600μm, 700μm, 800μm, 900μm, etc.

[0158] The spring wave 420 of this application embodiment improves the heat dissipation efficiency of the heat-conducting film 423 by setting a fiber layer 421 as a skeleton and setting a heat-conducting film 423 with multiple heat dissipation holes 4231 on the heat-conducting film 423; and also makes the heat-conducting film 423 have a certain degree of flexibility.

[0159] The actuator 400 in some embodiments of this application further includes a pressure ring 440, which is configured to press the spring 420 against the housing 430, and the pressure ring 440 also has thermal conductivity. For example, the pressure ring 440 can be a metal component, which helps to ensure heat transfer efficiency. The second connecting portion 4203 of the spring 420 is pressed against the housing 430 by the pressure ring 440, which helps to improve the stability and tightness of the connection between the spring 420 and the housing 430, facilitating heat transfer.

[0160] For example, the pressure ring 440 can be bonded to the housing 430, and the pressure ring 440 can be bonded to the spring 420, making the connection simple and stable.

[0161] Taking the exciter 400 as an electromagnetic exciter as an example, the electromagnetic exciter includes a magnetic component 450 and a voice coil. The magnetic component 450 is configured to generate a magnetic field, and the voice coil vibrates in the magnetic field along the axis of the voice coil.

[0162] The magnetic assembly 450 includes a magnetic conductor 451 and a magnetic component 452, forming a magnetic air gap N between them. The magnetic conductor 451 is a cylindrical shape with an opening, and the magnetic component 452 is disposed on the bottom surface inside the magnetic conductor 451. A gap exists between the inner wall surface of the magnetic conductor 451 and the magnetic component 452, forming the magnetic air gap N. The magnetic assembly 450 is configured to provide a stable magnetic field within the magnetic air gap N.

[0163] One end of the voice coil is connected to the lamp plate 210. A sheet-like connecting structure 411 can also be provided between the voice coil and the lamp plate 210 to increase the connection area between them and prevent them from detaching. The other end of the voice coil is inserted into the magnetic air gap N, and the voice coil is fixed to the outer casing 430 by a spring wave. As the magnetic field changes, the voice coil is subjected to force and reciprocates along its own axis. That is, when the exciter 400 is an electromagnetic exciter, the voice coil constitutes the actuator 410, and the end of the actuator 410 away from its vibration output end is located in the magnetic air gap N.

[0164] Thus, under the influence of the magnetic field, the electromagnetic force causes a high-frequency resonance in the voice coil, which directly vibrates the lamp panel 210. The reaction force of the electromagnetic force causes the larger exciter 400 to produce a lower-frequency resonance. The exciter 400's housing is not fixed but vibrates along with the driven lamp panel 210.

[0165] The magnetic guide 451 is fixedly connected to the outer casing 430, and the other end of the spring 420 is connected to the outer casing 430 through the magnetic guide 451. Specifically, the second connecting part 4203 of the spring 420 is pressed onto the magnetic guide 451 by a pressure ring 440. For example, the second connecting part 4203 is bonded to the magnetic guide 451, the pressure ring 440 is bonded to the magnetic guide 451, and the pressure ring 440 is bonded to the outer casing 430, resulting in a simple and stable connection method.

[0166] In some embodiments of this application, the actuator 400 connects the spring 420 to the housing 430 via the magnetic guide 451, thereby reducing the width of the actuator 400. Since the actuator 410 has a large axial dimension, the stacking and pressing of the pressure ring 440, the magnetic guide 451, and the housing 430 will not affect the overall thickness of the actuator 400. This connection method of the spring 420 not only ensures the stability of the connection but also makes the actuator 400 structure more compact.

[0167] Specifically, in some embodiments of this application, the magnetic conductor 451 includes a U-shaped body and a third connecting portion. The two ends of the opening of the U-shaped body are bent away from each other and extend to form the third connecting portion, which is connected to the housing 430.

[0168] In some embodiments, the portion of the magnetic conductor 451 that contacts the spring 420 is provided with ventilation holes to improve the heat dissipation efficiency of the magnetic conductor 451 and increase the heat dissipation of the actuator 410 through the spring 420. The ventilation holes can be circular holes, and the embodiments of this application do not limit the shape, number, or arrangement of the ventilation holes.

[0169] In some embodiments, a vent is provided at the portion of the housing 430 that contacts the magnetic conductor 451. The vent can be opposite to the ventilation hole to further improve heat dissipation efficiency. The vent can be a circular hole, and the shape, number, and arrangement of the vent are not limited in the embodiments of this application.

[0170] In some embodiments, the housing 430 of the actuator 400 is connected to the back plate 500 by a fixing pin, which 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 by the elastic pad 460.

[0171] The elastic pad 460 can be made of silicone, rubber, etc. The elastic pad 460 can be sleeved on the outside of the fixing pin. The outer shell 430 is provided with a mating hole, and the outer wall of the elastic pad 460 is provided with a snap-fit ​​groove that snaps into the outer shell 430. In this way, there are partial elastic pads 460 on both sides of the mating 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 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.

[0172] Figure 9 Partial cross-sectional view of a display device according to some embodiments of this application. Figure 2 .

[0173] Please refer to Figure 9 Since a gas layer M can be formed between the lamp panel 210 and the optical film assembly 110, when the exciter 400 drives the lamp panel 210 to vibrate, the lamp panel 210 can drive the display panel 100 to vibrate and produce sound through the gas layer M. Therefore, the backlight assembly 200 can also include a support member 300. The support member 300 can be disposed in the gas layer M, and the first end of the support member 300 can be connected to the lamp panel 210, while the second end of the support member 300 can abut against the optical film assembly 110.

[0174] Understandably, the support member 300 is elastic. The support member 300 can be supported between the lamp panel 210 and the optical film assembly 110 to prevent collisions or friction with the optical film assembly 110 when the backlight vibrates, thereby avoiding noise.

[0175] It should be noted that the support component 300 can be connected to the lamp panel 210 by means of bonding, snap-fit, or bonding to the encapsulation material of the light source. To facilitate the scattering of light from the light source, the interior of the support component 300 can be filled with air bubbles, silicone, etc.

[0176] In some embodiments, the cross-sectional dimensions of the support 300 may gradually decrease from one end of the light source to one end of the optical film assembly 110, i.e., the support 300 is approximately conical. The outer wall surface of the support 300 may also be convex to allow the light emitted from the light source to undergo total internal reflection within the support 300. In addition, an optical material may be coated on the outer wall surface of the support 300, such as an elastic silicone layer, to allow the light emitted from the light source to undergo total internal reflection within the support 300 or for only a portion of the light to exit through the side wall surface of the support 300.

[0177] It should be noted that the support member 300 can be clamped between the optical film assembly 110 and the lamp plate 210. That is, under normal conditions, the support member 300 is in a compressed state, and when the exciter 400 drives the lamp plate 210 to vibrate back and forth, the support member 300 will extend and retract accordingly, and will not separate from the optical film assembly 110 or the lamp plate 210, so as to avoid vibration transmission failure.

[0178] For example, the height of the support member 300 in its natural state is greater than the gap between the gases in the gas layer M and less than the sum of the amplitude of the exciter 400 and the gap between the gas layer M. For instance, the height of the support member 300 in its natural state can be half the amplitude of the exciter 400 and the sum of the gap between the gas layer M.

[0179] In some embodiments, there can be multiple support members 300, and each lamp panel 210 can be provided with multiple support members 300. The exciter 400 can be located at the center of the corresponding lamp panel 210. Multiple support members 300 can be distributed in an array around the exciter 400. The support members 300 can evenly assist in the transmission of vibration of the exciter 400. That is, each area where the support members 300 are distributed can have components that assist in the transmission of vibration. The even distribution of the support members 300 makes the overall force of the display device more balanced and improves the sound effect.

[0180] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A display device, characterized by comprising: The display device comprises: a display panel configured to display image information; a backlight assembly located on the light-incident side of the display panel, the backlight assembly comprising a plurality of lamp panels arranged in the same plane, a cavity being formed between the lamp panels and the display panel; a back plate provided on the side of the backlight assembly away from the display panel, the plurality of lamp panels being connected to different positions of the back plate respectively; an exciter provided on the side of the back plate away from the lamp panels, the exciter being connected to the lamp panels through the back plate; wherein the exciter is provided in plurality, the plurality of exciters being connected to at least part of the plurality of lamp panels correspondingly, the plurality of exciters being configured to selectively drive the lamp panels to vibrate according to the image information, the lamp panels transmitting the vibration to the display panel so as to make the display panel locally vibrate to produce sound.

2. The display device according to claim 1, wherein The plurality of lamp panels are arranged in sequence along the length direction of the display panel, and the plurality of lamp panels form a plurality of sound-producing areas; the plurality of sound-producing areas are symmetrically arranged with respect to the central axis of the display device.

3. The display device according to claim 2, wherein The plurality of lamp panels comprise first lamp panels and second lamp panels, at least one exciter being connected to the first lamp panels, and no exciter being provided on the second lamp panels; each sound-producing area corresponds to at least one first lamp panel. Adjacent sound-producing areas are provided between different sound-producing areas; or at least one second lamp panel is provided between different sound-producing areas.

4. The display device according to claim 3, wherein The plurality of sound-producing areas comprise left main sound channel areas and right main sound channel areas; the left main sound channel areas and the right main sound channel areas are symmetrically arranged with respect to the central axis of the display device, and the left main sound channel areas and the right main sound channel areas each correspond to at least two first lamp panels; the second lamp panels are provided between the left main sound channel areas and the right main sound channel areas.

5. The display device according to claim 3, wherein The plurality of sound-producing areas comprise left main sound channel areas, right main sound channel areas and center sound channel areas; the left main sound channel areas, the center sound channel areas and the right main sound channel areas are arranged in sequence and adjacent to each other along the length direction of the display panel; the left main sound channel areas, the center sound channel areas and the right main sound channel areas each correspond to at least two first lamp panels; the second lamp panels are provided on the side of the left main sound channel areas away from the center sound channel areas; and the second lamp panels are provided on the side of the right main sound channel areas away from the center sound channel areas.

6. The display device according to claim 3, wherein The plurality of sound-producing areas comprise left main sound channel areas, right main sound channel areas, center sound channel areas, left surround sound channel areas and right surround sound channel areas; the left surround sound channel areas, the left main sound channel areas, the center sound channel areas, the right main sound channel areas and the right surround sound channel areas are arranged in sequence and adjacent to each other along the length direction of the display panel; and the second lamp panels are provided below the sound-producing areas.

7. The display device according to any one of claims 1 to 6, wherein A first adhesive member is further provided, a gap being provided between the back plate and the lamp panels, the first adhesive member being provided in the gap, and the two sides of the first adhesive member being adhered to the back plate and the lamp panels respectively.

8. The display device according to claim 7, wherein The first adhesive member is located between two adjacent lamp panels; and the first adhesive member extends along the joint between the two adjacent lamp panels.

9. The display device according to any one of claims 1 to 6, wherein The second adhesive has a first side adhered to the lamp panel; the back plate is provided with an opening, and the exciter is adhered to a second side of the second adhesive through the opening.

10. The display device according to any one of claims 1 to 6, wherein An optical film assembly is further included and arranged between the lamp panel and the display panel; the lamp panel and the optical film assembly have a sealed gas layer therebetween, and when the exciter drives the lamp panel to vibrate, the lamp panel drives the display panel to vibrate and emit sound via the gas layer.

Images