Display devices

Abstract

This invention provides a display device comprising a display panel; a backlight module including an optical film assembly, a backlight plate, and a plurality of spaced-apart vibration transmission components, the optical film assembly being located between the display panel and the backlight plate; and an actuator including an actuator body and an actuator connected to the backlight plate for driving the backlight plate to vibrate; wherein the backlight plate and the display panel are spaced apart and form a gas layer, and the vibration transmission components elastically press against the backlight plate and the optical film assembly to transmit the vibration of the backlight plate to the display panel. The display device provided by this invention can achieve sound generation through display panel vibration, and the display device exhibits high structural stability.

Description

[0001] This application is a divisional application. The original application has the application number 202210756231.X and the original application date is June 30, 2022. The original application is entitled "Display Device". The entire contents of the original application are incorporated herein by reference. Technical Field

[0002] This invention relates to the field of display technology, and more particularly to a display device. Background Technology

[0003] With the development of science and technology and the improvement of people's living standards, display devices are increasingly being used in people's work and life.

[0004] Display devices are constantly evolving towards narrower bezels and thinner designs. Due to the limited size and installation space of display devices, speakers are generally placed below or behind the display screen, using a bottom-mounted or rear-mounted sound design. This makes the speakers invisible from the front of the screen, resulting in a more aesthetically pleasing appearance. However, this design leads to a separation between the sound image and the picture image, failing to achieve a unified audio-visual experience and resulting in a poor user experience. Summary of the Invention

[0005] In view of the above problems, embodiments of the present invention provide a display device that can realize the vibration of the display panel to generate sound, and has high structural stability.

[0006] To achieve the above objectives, the embodiments of the present invention provide the following technical solutions:

[0007] This invention provides a display device including a display panel; a backlight module comprising an optical film group, a backlight plate, and a plurality of spaced vibration transmission elements, the optical film group being located between the display panel and the backlight plate; and an actuator comprising an actuator body and an actuator connected to the backlight plate for driving the backlight plate to vibrate; wherein the backlight plate and the display panel are spaced apart and form a gas layer, and the vibration transmission elements are elastically pressed between the backlight plate and the optical film group to transmit the vibration of the backlight plate to the display panel.

[0008] Compared with related technologies, the display device provided in this invention has the following advantages: The display device includes a display panel, a backlight panel, and multiple vibration transmission components disposed between the display panel and the backlight panel. A gas layer exists between the display panel and the backlight panel. The display device also includes an exciter that can drive the backlight panel to vibrate, and the vibration of the backlight panel can be transmitted to the display panel via the gas layer to achieve sound generation from the vibration of the display panel. Furthermore, because the multiple vibration transmission components are spaced apart, multiple positions of the display panel can be supported by the vibration transmission components, preventing the display panel from concave or deforming, resulting in high structural stability of the display device.

[0009] In addition to the technical problems solved by the embodiments of the present invention, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions as described above, other technical problems that the display device provided by the embodiments of the present invention can solve, 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 embodiments. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the structure of a display device according to some embodiments of this application;

[0012] Figure 2 This is another structural schematic diagram of a display device according to some embodiments of this application;

[0013] Figure 3 This is a schematic diagram showing the distribution of vibration transmission components in a display device according to some embodiments of this application;

[0014] Figure 4 This is a schematic diagram of the structure of the vibration transmission component and the backlight plate in the display device of some embodiments of this application;

[0015] Figure 5 This is another structural schematic diagram of the vibration transmission component and the backlight plate in the display device of some embodiments of this application;

[0016] Figure 6 This is a schematic diagram of the structure of the vibration transmission component in the display device according to some embodiments of this application when it is adsorbed and fixed.

[0017] Figure 7This is a schematic diagram of the structure of a vibration transmission component in a display device according to some embodiments of this application, where the two ends are fixed in different ways;

[0018] Figure 8 This is a schematic diagram of the structure of a display device according to some embodiments of the present application, in which an air guide channel is provided at the connection position between the display panel and the backlight plate;

[0019] Figure 9 for Figure 8 A front view of the adhesive strip when partially magnified in section A;

[0020] Figure 10 This is another structural schematic diagram of a vibration transmission element in a display device according to some embodiments of this application;

[0021] Figure 11 This is another structural schematic diagram of a vibration transmission element in a display device according to some embodiments of this application;

[0022] Figure 12 This is a schematic diagram of the structure of a wear-resistant component disposed between the diffusion film and the fluorescent film in a display device according to some embodiments of this application;

[0023] Figure 13 This is another structural schematic diagram of a wear-resistant component disposed between the diffusion film and the fluorescent film in a display device according to some embodiments of this application;

[0024] Figure 14 This is another structural schematic diagram of a wear-resistant component disposed between the diffusion film and the fluorescent film in a display device according to some embodiments of this application;

[0025] Figure 15 This is a schematic diagram of the structure of a vibration transmission element in a display device according to some embodiments of this application;

[0026] Figure 16 for Figure 15 A cross-sectional view of a vibration transmission component.

[0027] Figure label:

[0028] 10: Display devices;

[0029] 100: Display panel;

[0030] 200: Backlight module;

[0031] 210: Backlight panel; 211: Mounting hole; 212: Fixing plate; 213: Light source;

[0032] 220: Vibration transmission component; 221: Support part; 222: Buffer part; 223: Air bubble;

[0033] 230: Optical film assembly; 231: Fluorescent film; 232: Diffusion film; 233: Brightness enhancement film;

[0034] 300: Back panel;

[0035] 400: Actuator; 410: Actuator body; 420: Actuator element;

[0036] 510: First adhesive component; 511: Air duct; 512: Adhesive strip;

[0037] 600: Wear-resistant component; 610: First light processing layer; 620: Second light processing layer; 630: Light reflector; 640: Filter component;

[0038] M: Gas layer; Y: Equivalent length; D: Equivalent inner diameter; L1: First ray; L2: Second ray. Detailed Implementation

[0039] To make the above-mentioned objectives, features, and advantages of the embodiments of the present invention more apparent and understandable, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] In related technologies, display devices can use speakers to generate sound. However, since the speakers are located at the bottom of the display device, the image and sound are separated, resulting in a poor user experience as the audio and video cannot be synchronized. Alternatively, display devices can use exciters to vibrate the display panel to generate sound. Taking OLED (Organic Light-Emitting Diode) display devices as an example, the display panel of an OLED display device includes an organic self-emissive layer, and the exciter can be directly connected to the display panel to drive it to vibrate and generate sound. However, for liquid crystal display (LCD) devices, the display panel requires a backlight to emit light, and the backlight cannot be blocked. Therefore, LCD devices cannot use exciters to drive the display panel to vibrate and generate sound.

[0041] In view of this, embodiments of this application provide a display device in which the exciter can drive the display panel to vibrate and generate sound through the gas layer between the display panel and the backlight panel, resulting in good acoustic effects and easy integration of sound and picture. Simultaneously, a vibration transmission component is provided between the display panel and the backlight panel to support the display panel, preventing dents and deformations under external forces, thus ensuring high structural stability of the display device.

[0042] 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 another structural schematic diagram of a display device according to some embodiments of this application.

[0043] Please see Figure 1 and Figure 2 This embodiment provides a display device 10, which is a liquid crystal display device. The display device 10 includes a display panel 100 for displaying text, images and other image information.

[0044] The display device 10 has a top side, a bottom side, a left side, a right side, a front side, and a rear side. The left and right sides of the display device 10 refer to the left and right sides of the user when the user is facing the display panel 100. Correspondingly, the side of the display device 10 facing the user is the front side, the side of the display device 10 away from the user is the rear side, the top side of the display device 10 is the top side, and the bottom side of the display device 10 is the bottom side.

[0045] The display panel 100 is a major component of the display device 10. It primarily includes a liquid crystal display panel, which comprises a color filter (CF) substrate, a thin film transistor (TFT) substrate (also called an array substrate), and a liquid crystal (LC) layer. The liquid crystal layer is located between the color filter substrate and the array substrate. The TFT substrate has data lines and scan lines. The orientation of the liquid crystal molecules is controlled by whether the data lines and scan lines are energized, so that light from the light source 213 is emitted through the color filter substrate to generate a preset color image.

[0046] Since the liquid crystal display panel itself cannot emit light, in order for the display device 10 to display normally, the display device 10 also includes a backlight module 200, which includes a backlight plate 210 and a plurality of spaced vibration transmission elements 220.

[0047] The backlight panel 210 can be an aluminum plate, a printed circuit board (PCB), etc. The backlight panel 210 has multiple light sources 213, which can be light-emitting diodes (LEDs), mini-light-emitting diodes (Mini LEDs), or micro-light-emitting diodes (Micro LEDs). Multiple light sources 213 can be spaced apart on the backlight panel 210.

[0048] In some embodiments, the backlight module 200 further includes an optical film group 230, which is located between the display panel 100 and the backlight panel 210. That is, the display panel 100 is located on the light-emitting side of the optical film group 230, and the backlight panel 210 is located on the light-incident side of the optical film group 230. The display panel 100, the optical film group 230, and the backlight panel 210 are stacked along the thickness direction of the display device 10.

[0049] Depending on the type of light emitted by the light source 213, the optical film assembly 230 can be of different types. For example, when the light source 213 emits white light, the optical film assembly 230 may include a reflective sheet, a light guide plate, a brightness enhancement film, etc. The reflective sheet is attached to the side of the backlight plate 210 where the light source 213 is located.

[0050] When the light source 213 emits blue light, the optical film assembly 230 may include multiple films such as a diffusion film 232, a fluorescent film 231, and a brightness enhancement film 233 stacked sequentially. The diffusion film 232 is disposed on the side facing the backlight panel 210, allowing the user to mix the light from multiple light sources 213 evenly, i.e., converting a point light source into a surface light source. The fluorescent film 231 converts the light emitted by the light source 213 into white light, thus not limiting the color of the light emitted by the light source 213; the light source 213 can emit blue or purple light. The brightness enhancement film 233 is used to increase the brightness of the light. It is understood that when the light source 213 emits white light, the optical film assembly 230 may also include a diffusion film 232, a fluorescent film 231, and a brightness enhancement film 233. This embodiment uses the optical film assembly 230 including a diffusion film 232, a fluorescent film 231, and a brightness enhancement film 233 as an example for explanation.

[0051] In some embodiments, the diffusion film 232 and the fluorescent film 231 can be spaced apart to avoid damage caused by mutual friction between them. An anti-wear component 600 can be provided between the diffusion film 232 and the fluorescent film 231 to maintain their spacing. Furthermore, by using a material capable of refracting and reflecting light, the anti-wear component 600 can also adjust light intensity. The structure, material, and function of the anti-wear component 600 will be explained later.

[0052] In some embodiments, the display panel 100 and the optical film group 230 are stacked together, and the backlight panel 210 and the optical film group 230 are spaced apart to accommodate the light source 213.

[0053] In some embodiments, the edge of the display panel 100 is connected to the edge of the backlight panel 210 so that a gas layer M is formed between the display panel 100 and the backlight panel 210, and the light source is located in the gas layer M.

[0054] In other embodiments, the display panel 100 and the optical film assembly 230 can be bonded together as a whole, with no gas gaps between the liquid crystal display panel and the brightness enhancement film 233, between the brightness enhancement film 233 and the phosphor film 231, and between the phosphor film 231 and the diffusion film 232. In this case, a gas layer M is formed between the optical film assembly 230 and the backlight panel 210. The gas layer M can be equivalent to a damping spring for transmitting vibrations.

[0055] In some embodiments, the display device 10 further includes an actuator 400, which is any one or more of an electromagnetic actuator, a magnetostrictive actuator, and a piezoelectric actuator. The actuator 420 may have different structures depending on the type of actuator 400; this embodiment does not limit the type of actuator 400.

[0056] 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. In this case, the vibration coil can be understood as the actuator 420.

[0057] In some embodiments, the exciter 400 includes an exciter body 410 and an actuator 420. The actuator 420 is connected to the backlight panel 210. When the exciter 400 is activated, the actuator 420 vibrates and drives the backlight panel 210 to vibrate. The vibration of the backlight panel 210 is transmitted to the display panel 100 via the gas layer M to drive the display panel 100 to vibrate and produce sound.

[0058] In other words, the vibration of the actuator 420 can be transmitted to the display panel 100 in sequence through the backlight plate 210, the gas layer M and the optical film group 230, so as to drive the display panel 100 to vibrate and produce sound. The acoustic effect is better and it is easy to achieve the integration of sound and picture.

[0059] Furthermore, since the exciter 400 is located on the surface of the backlight plate 210 facing away from the display panel 100, the setting of the exciter 400 does not affect the display effect of the display device.

[0060] The gas layer M can have a good sealing effect, or it can be in a partially sealed state. For example, in some embodiments, the edge of the display panel 100 is sealed to the edge of the backlight panel 210, thereby forming a sealed gas layer M; while in other embodiments, there is no seal between the display panel 100 and the backlight panel 210, allowing the gas layer M to communicate with the outside air through structures such as the assembly gaps between components; in still other embodiments, a specific communication channel can be provided in the lateral gap between the display panel 100 and the backlight panel 210, so that while the gas layer M communicates with the outside air, it also has a certain filtering effect on the vibration transmitted by the gas layer M. As long as the gas layer M can normally transmit the vibration force of the exciter 400, so that the display panel 100 vibrates and produces sound normally, the sealing state of the gas layer M is not limited here.

[0061] Since the light source 213 of the sub-millimeter light-emitting diode type has a relatively compact size, the gap between the backlight panel 210 and the liquid crystal display panel 100 is smaller, thereby reducing the thickness of the gas layer M and improving the vibration transmission effect of the gas layer M. Therefore, in this embodiment, the light source 213 of the backlight module 200 is mainly described as a sub-millimeter light-emitting diode.

[0062] In some embodiments, a backlight plate 210 and a display panel 100 are spaced apart and form a gas layer M. A vibration transmission member 220 is elastically pressed between the backlight plate 210 and the optical film assembly 230. That is, the vibration transmission member 220 is elastic and sandwiched between the backlight plate 210 and the optical film assembly 230. In this way, the optical film assembly 230 is supported at multiple points by the vibration transmission member 220. Even if the display panel 100 is subjected to external forces, such as impacts from foreign objects, the vibration transmission member 220 can mitigate the impact on the display panel 100 through its own elastic deformation and reduce the amount of deformation of the display panel 100, resulting in high structural stability of the display device 10.

[0063] Meanwhile, since the vibration transmission element 220 is elastically pressed between the backlight panel 210 and the optical film group 230, the vibration transmission element 220 is always supported between the backlight panel 210 and the optical film group 230 during the reciprocating vibration of the backlight panel 210. In other words, by setting the vibration transmission element 220 between the backlight panel 210 and the diffusion film 232, the optical film group 230 and the backlight panel 210 can be connected into a whole, which can be equivalent to a single-layer screen to effectively transmit vibration. The vibration transmission efficiency is high, and it can also avoid relative movement between the optical film group 230 and the backlight panel 210 due to the large gap of the gas layer M.

[0064] Furthermore, since the optical film assembly 230 converts and homogenizes the light emitted by the light source 213, even if the vibration transmission member 220 is provided on the side of the backlight panel 210 where the light source 213 is located, shadows can be avoided on the display panel 100, thus allowing the display panel 100 to have more uniform brightness. Therefore, in terms of the display brightness of the display panel 100, there are no restrictions on the shape, size, or contact area between the vibration transmission member 220 and the diffusion film 232.

[0065] In some embodiments, the display panel 100 and the optical film group 230 can be pressed together to avoid air gaps between each pair of the liquid crystal display panel, the brightness enhancement film 233, the fluorescent film 231 and the diffusion film 232 that allow air to flow through them.

[0066] In some embodiments, the liquid crystal display panel and the optical film group 230 can also be bonded together in pairs, for example, by photosensitive adhesive (UV adhesive), foam, double-sided adhesive, etc.

[0067] In other words, the display panel 100 and the optical film group 230 can be fixedly connected as a whole by adhesive bonding. At this time, the gas layer M is formed between the optical film group 230 and the backlight panel 210.

[0068] When the liquid crystal display panel and the optical film group 230 are pressed together, there can be gas gaps between the liquid crystal display panel and the brightness enhancement film 233, between the brightness enhancement film 233 and the fluorescent film 231, and between the fluorescent film 231 and the diffusion film 232. A gas layer M is formed between the display panel 100 and the backlight plate 210, and the gas gap is in a closed state.

[0069] In some embodiments, the optical film assembly 230 may have different vibration modes depending on the fixing method between the optical film assembly 230 and the liquid crystal display panel. For example, when the optical film assembly 230 is fixed to the liquid crystal display panel by an adhesive, the fluorescent film 231 can vibrate synchronously with the liquid crystal display panel.

[0070] When the optical film assembly 230 is pressed together with the liquid crystal display panel, there may be a gap between the optical film assembly 230 and the liquid crystal display panel. The optical film assembly 230 may vibrate asynchronously with the liquid crystal display panel. For example, the optical film assembly 230 may be in a stationary state.

[0071] In some embodiments, the gap of the gas layer M can be 0.3mm-10mm to accommodate different sizes of the light source 213. In some embodiments, when the light source 213 is a sub-millimeter light-emitting diode, the gap of the gas layer M can be less than 1mm, and the display device 10 can have a smaller thickness. It should be noted that the values ​​and ranges involved in the embodiments of this application are approximate values, and may have a certain range of errors due to the influence of the manufacturing process. These errors can be considered negligible by those skilled in the art.

[0072] In some embodiments, when the gap of the gas layer M is large, for example, when the gap is 4mm-10mm, the sensitivity of the gas pressure change in the gas layer M is low when the backlight panel 210 vibrates. By providing a vibration transmission element 220 between the backlight panel 210 and the optical film group 230, the gas volume between the backlight panel 210 and the optical film group 230 can be reduced, thereby improving the sensitivity of the gas pressure change and the vibration transmission efficiency of the exciter 400.

[0073] Understandably, when the gas layer M is sealed and the backlight panel 210 vibrates significantly, the gas inside the gas layer M is compressed and the gas pressure is high. This can easily cause the liquid crystal inside the liquid crystal layer to deform under pressure, which in turn can lead to display problems in the display device 10.

[0074] To prevent the liquid crystal in the liquid crystal layer from being deformed by pressure, the vibration energy of the exciter 400 can be reduced or the gap of the gas layer M can be increased.

[0075] Figure 8 This is a schematic diagram of the structure of a display device according to some embodiments of this application, in which an air guide channel is provided at the connection position between the display panel and the backlight plate. Figure 9 for Figure 8 A front view of the adhesive strip when partially magnified in section A.

[0076] To prevent the liquid crystal within the liquid crystal layer from deforming under pressure, please refer to [link / reference needed]. Figure 8 and Figure 9 In some embodiments, the gas layer M can also be open to the atmosphere, that is, the gas layer M is in a non-sealed state, and there is a gas channel 511 at the connection position between the edge of the display panel 100 and the edge of the backlight plate 210. For example, the first adhesive 510 between the diffusion film 232 and the display panel 100 or the first adhesive 510 between the diffusion film 232 and the backlight plate 210 forms the gas channel 511, which connects the inner and outer sides of the gas layer M.

[0077] The air guide channel 511 has an equivalent length Y and an equivalent inner diameter D, and the equivalent length Y is greater than or equal to three times the equivalent inner diameter D. Thus, the air guide channel 511 can be equivalent to a compliant elastic structural member.

[0078] Because the elastic structural component has the function of high-frequency filtering and low-frequency transmission, when the exciter 400 drives the backlight panel 210 to vibrate at low frequencies, the low-frequency sound waves can propagate to the outside of the gas layer M through the gas guide channel 511. At this time, there is gas exchange between the gas layer M and the atmosphere, thus avoiding the liquid crystal layer being subjected to large gas pressure due to the large amplitude of the low-frequency vibration. When the exciter 400 drives the backlight panel 210 to vibrate at high frequencies, the gas guide channel 511 is equivalent to a closed channel, and there is no gas exchange between the gas layer M and the atmosphere. The sound waves cannot propagate to the outside of the gas layer M through the gas guide channel 511. However, since the vibration amplitude of the backlight panel 210 at high frequencies is small, it will not cause the liquid crystal of the liquid crystal layer to be deformed by pressure.

[0079] In other words, by setting up a filter structure that connects the gas layer M with the atmosphere, it is possible to both drive the display panel 100 to vibrate and produce sound, and prevent the liquid crystal in the liquid crystal layer from being deformed by pressure.

[0080] In some embodiments, the first adhesive 510 is an example of double-sided adhesive. Please refer to [link / reference]. Figure 9 The double-sided adhesive includes multiple adhesive strips 512, which extend along the length of the side of the display device 10, and the multiple adhesive strips 512 are spaced apart along the length of the side of the display device 10. To form an air guide channel 511, the multiple adhesive strips 512 are arranged in multiple rows along their own vertical direction (e.g., Figure 9 (Two columns in the middle), and along the vertical direction of the rubber strip 512, the ends of two adjacent rubber strips 512 are staggered. The equivalent length Y and equivalent inner diameter D of the air guide channel 511 are as follows: Figure 9 As shown, the structure of the air guide channel 511 is relatively simple.

[0081] Understandably, the display device 10 also includes a backplate 300, which is disposed behind the backlight panel 210 and is used to support the backlight module 200 and the display panel 100. The backplate 300 can be made of aluminum alloy, steel, or other materials to provide effective support.

[0082] In some embodiments, the actuator body 410 is connected to the backlight panel 210 (e.g., Figure 1 As shown), when the actuator 420 drives the backlight panel 210 to vibrate, the exciter body 410 can vibrate with the backlight panel 210, so that the exciter 400 forms an inertial drive mode to drive the display panel 100 to vibrate, which helps to generate a better low-frequency sound.

[0083] Furthermore, by connecting the exciter body 410 to the backlight panel 210, it can be understood that the backlight panel 210 has an added vibration weight. For the equivalent flat plate structure formed by the display panel 100 and the backlight panel 210, this is equivalent to increasing the equivalent density of the flat plate structure, and the first-order modal frequency f 11 Lowering the pitch helps to bring out better low-frequency sounds.

[0084] In some embodiments, please refer to Figure 2 The actuator body 410 is elastically connected to the back plate 300. The back plate 300 is a metal part, which can provide good support for the actuator body 410.

[0085] The actuator body 410 can be elastically connected to the back plate 300 through elastic materials such as rubber and silicone. In this way, during the vibration of the actuator 420, the actuator body 410 can reciprocate relative to the back plate 300. At this time, the actuator 400 also constitutes an approximately inertial drive mode to drive the backlight plate 210 to vibrate, avoiding the frequency response of the display device 10 being affected by the relatively fixed relationship between the actuator body 410 and the back plate 300.

[0086] Multiple vibration transmission components 220 can be arbitrarily arranged on the backlight panel 210. For example, multiple vibration transmission components 220 are arranged longitudinally and laterally on the backlight panel 210 and are equally spaced, which makes them easy to assemble.

[0087] Figure 3 This is a schematic diagram showing the distribution of vibration transmission components in a display device according to some embodiments of this application.

[0088] In some embodiments, considering the actuator 400 as a vibration source, the vibration of the backlight panel 210 is transmitted outward from the actuator 400 as the center, wherein, please refer to Figure 3 Multiple vibration transmission elements 220 can also be arranged around the outside of the exciter body 410, so as to support the optical diaphragm group 230 at different positions around the exciter 400, and the vibration transmission effect at different positions around the exciter 400 is better.

[0089] In this embodiment, multiple vibration transmission elements 220 can be arranged irregularly on the outer circumference of the vibration transmission elements 220. In some embodiments, multiple vibration transmission elements 220 can also be arranged in a ring around the outer side of the exciter body 410, which reduces assembly difficulty and cost.

[0090] The arrangement of multiple vibration transmission components 220 can be in a circular shape (e.g., Figure 3 As shown in the figure), square ring (not shown), etc. Taking multiple vibration transmission components 220 arranged in a circular ring as an example, multiple ring structures can be arranged on the outer side of the exciter body 410. The number of vibration transmission components 220 arranged in each ring structure and the number of rings can be set as needed.

[0091] The distribution center of the multiple vibration transmission elements 220 arranged in a ring structure can be offset from the center of the exciter body 410 (not shown). In some embodiments, the multiple vibration transmission elements 220 are arranged radially with the exciter body 410 as the center, that is, multiple rows of vibration transmission elements 220 are arranged symmetrically around the exciter body 410, which has a relatively simple arrangement shape and low assembly difficulty and cost.

[0092] Furthermore, the distribution center of the multiple vibration transmission components 220 arranged in a ring structure coincides with the exciter body 410, and the distance between the exciter body 410 and the multiple support units distributed in the same ring structure is the same. The multiple support units distributed in the same ring structure have a good support effect and vibration transmission effect on the optical diaphragm group 230 at its location.

[0093] Understandably, at this time, multiple annular structures are provided on the outer side of the exciter body 410, wherein each annular structure has the same number of vibration transmission elements 220, and the vibration transmission elements 220 in two adjacent annular structures are staggered.

[0094] Considering vibration transmission loss, the vibration amplitude of the backlight panel 210 is greater closer to the exciter 400 and gradually decreases further away from the exciter 400. In some embodiments, the height of the vibration transmission member 220 along the vertical direction of the display panel 100 in its natural state gradually decreases from the side closer to the exciter body 410 to the side farther away from the exciter body 410, and the height of the vibration transmission member 220 along the vertical direction of the display panel 100 in its natural state is greater than the maximum spacing of the gas layer M at its corresponding position.

[0095] In other words, to avoid vibration transmission failure, the height of the vibration transmission element 220 required when it separates from the diffusion film 232 or the backlight plate 210 gradually decreases from the side closer to the exciter body 410 to the side farther away from the exciter body 410.

[0096] Since the vibration transmission components 220 are set at different heights, for example, the basic height of the vibration transmission component 220 can be based on the height of the vibration transmission component 220 at the position close to the exciter body 410. The further away from the exciter body 410, the smaller the height of the vibration transmission component 220.

[0097] In other words, by setting the vibration transmission components 220 at unequal heights in their natural state, it is possible to achieve a lower manufacturing cost by ensuring that each vibration transmission component 220 between the diffusion film 232 and the backlight plate 210 is in an interference fit compression state. This avoids the separation of the vibration transmission components 220 near the exciter body 410 from the diffusion film 232 or the backlight plate 210, resulting in better support between the diffusion film 232 and the backlight plate 210 and higher vibration transmission efficiency.

[0098] Considering vibration transmission losses, the vibration intensity is greater closer to the exciter 400 and gradually decreases further away from the exciter 400. In some embodiments, at least one of the distribution density of the vibration transmission elements 220 and the support stiffness of a single vibration transmission element 220 gradually decreases from the side closer to the exciter body 410 to the side farther away from the exciter body 410. That is, the optical diaphragm assembly 230 requires greater support strength closer to the exciter body 410 and less support strength farther away from the exciter body 410. Accordingly, at least one of the distribution density and support stiffness of the vibration transmission elements 220 is set unequally.

[0099] Specifically, when the distribution area of ​​the vibration transmission components 220 at different locations is unequal, the closer to the exciter body 410, the more vibration transmission components 220 are arranged, and the farther away from the exciter body 410, the fewer vibration transmission components 220 are arranged. In other words, the closer to the exciter body 410, the more vibration transmission components 220 participate in supporting the optical diaphragm assembly 230 and transmitting vibration, resulting in better support. Furthermore, with a larger number of vibration transmission components 220 working together for support and vibration transmission, the pressure on a single vibration transmission component 220 is lower, leading to a longer service life. Simultaneously, even if some vibration transmission components 220 near the exciter body 410 fail, the large number of vibration transmission components near the exciter body 410 prevents support failure and vibration transmission failure at that location.

[0100] When the support stiffness of different vibration transmission components 220 is not equal, the vibration transmission component 220 closer to the exciter 400 has a greater support stiffness, and the vibration transmission component 220 farther away from the exciter 400 has a smaller support stiffness. In other words, the closer the vibration transmission component 220 is to the exciter body 410, the stronger its ability to resist deformation, which can prevent the vibration transmission component 220 from failing due to excessive expansion and contraction, thus avoiding support failure and vibration transmission failure.

[0101] It is understandable that the distribution area and support stiffness of the vibration transmission component 220 can be set differently, and this embodiment does not impose any restrictions.

[0102] Considering vibration transmission losses, the vibration intensity is greater closer to the exciter 400 and gradually decreases further away from the exciter 400. In some embodiments, at least one of the stiffness and cross-sectional area of ​​a single vibration transmission element 220 gradually decreases from the side closer to the exciter body 410 to the side farther away from the exciter body 410. That is, the optical diaphragm assembly 230 requires greater support strength closer to the exciter body 410 and less support strength farther away from the exciter body 410. Correspondingly, at least one of the stiffness and cross-sectional area of ​​the vibration transmission element 220 can be set differently.

[0103] When the hardness of different vibration transmission components 220 is set differently, the vibration transmission component 220 closer to the exciter body 410 has a greater hardness, and the vibration transmission component 220 farther away from the exciter 400 has a smaller hardness. That is to say, the closer the vibration transmission component 220 is to the exciter body 410, the stronger its ability to resist deformation. In this way, the vibration transmission component 220 can be effectively supported between the backlight plate 210 and the diffusion film 232, and the vibration transmission component 220 has a better support effect and vibration transmission effect.

[0104] When the cross-sectional areas of different vibration transmission components 220 are set differently, the cross-sectional area of ​​the vibration transmission component 220 closer to the exciter 400 is larger, and the cross-sectional area of ​​the vibration transmission component 220 farther away from the exciter 400 is smaller. That is to say, the closer the position is to the exciter body 410, the larger the cross-sectional size of the vibration transmission component 220, and the less likely it is to undergo expansion and contraction deformation. In this way, the vibration transmission component 220 can be effectively supported between the backlight plate 210 and the diffusion film 232, and the vibration transmission component 220 has a better support effect and vibration transmission effect.

[0105] It is understandable that the hardness and cross-sectional area of ​​the vibration transmission component 220 can be set differently, and this embodiment does not impose any restrictions.

[0106] In some embodiments, at least one of the following factors in the natural state: the height of the vibration transmitter 220 along the vertical direction of the display panel 100, the distribution density of the vibration transmitter 220, the stiffness of a single vibration transmitter 220, the hardness of a single vibration transmitter 220, and the cross-sectional area of ​​a single vibration transmitter 220, gradually decreases from the side closer to the exciter body 410 to the side farther away from the exciter body 410, in order to adapt to different assembly process requirements, manufacturing costs, etc.

[0107] In some embodiments, please refer to Figure 3Given that the display device 10 is typically large, it may include multiple backlight panels 210 arranged in an array for splicing. For example, the multiple backlight panels 210 are arranged in a horizontal and vertical configuration.

[0108] In some embodiments, during the vibration of the backlight panel 210 driven by the exciter 400, collisions may occur between two adjacent backlight panels 210, generating noise. In some embodiments, at least part of the vibration transmission element 220 may be disposed in the gap between any two adjacent backlight panels 210 (e.g., Figure 3 As shown), to form a buffer between two adjacent backlight panels 210. For example, vibration transmission elements 220 can be provided at the corner positions of any four adjacent backlight panels 210, so that a smaller number of vibration transmission elements 220 can be used to buffer the backlight panels 210.

[0109] It is understood that this embodiment does not limit the placement of the vibration transmission element 220. That is, the vibration transmission element 220 can be disposed alone on the backlight panel 210, or the vibration transmission element 220 can be disposed alone between two adjacent backlight panels 210. In some embodiments, the vibration transmission element 220 can also be simultaneously located in the gap between the backlight panel 210 and the gap between two adjacent backlight panels 210 (e.g., Figure 3 (As shown).

[0110] Figure 4 This is a schematic diagram of the structure of the vibration transmission component and the backlight plate in the display device of some embodiments of this application. Figure 5 This is another structural schematic diagram of the vibration transmission element and the backlight plate in the display device of some embodiments of this application. Figure 6 This is a schematic diagram of the structure of the vibration transmission component in the display device of some embodiments of this application when it is adsorbed and fixed. Figure 7 This is a schematic diagram of the structure of a vibration transmission component in a display device according to some embodiments of this application, where the two ends are fixed in different ways.

[0111] In some embodiments, the cross-sectional dimension of the vibration transmission member 220 gradually decreases from the end facing the backlight plate 210 to the end facing the display panel 100, that is, the vibration transmission member 220 is approximately conical (e.g., Figure 4 and Figure 5 As shown, the vibration transmission element 220 can be placed outside the path of the light emitted from the light source 213 to reduce light loss and make the brightness distribution of the display screen more uniform.

[0112] When the optical film assembly 230 is equipped with a fluorescent film 231, the shape of the vibration transmission member 220 is not limited. In this case, the cross-sectional dimensions at both ends of the vibration transmission member 220 can be larger than the cross-sectional dimensions at the middle of the vibration transmission member 220, that is, the vibration transmission member 220 is approximately dumbbell-shaped (e.g., Figure 6 (As shown). Alternatively, the vibration transmitter 220 may also be columnar (not shown).

[0113] The cross-sectional shape of the vibration transmission component 220 can be circular, elliptical, square, or any other arbitrary shape. The shape of the vibration transmission component 220 can be determined according to its fixing method, etc., and this embodiment does not impose any limitation, making it highly applicable.

[0114] The vibration transmission component 220 can be pressed against the backlight plate 210 and the optical film group 230 by elastic deformation. That is, the vibration transmission component 220 and the backlight plate 210 and the vibration transmission component 220 and the diffusion film 232 are not relatively fixed, and the fixing method is relatively simple.

[0115] In some embodiments, at least one end of the vibration transmission member 220 may be fixed to prevent the vibration transmission member 220 from shifting during the vibration of the backlight panel 210.

[0116] The vibration transmission component 220 can be fixedly connected to the diffusion membrane 232 by means of adhesion, negative pressure adsorption, etc., without damaging the integrity of the diffusion membrane 232. For example, when the vibration transmission component 220 is fixed to the diffusion membrane 232 by negative pressure adsorption, a recess (not shown) can be provided on the end face of the vibration transmission component 220. The inner wall surface of the recess can be spherical. By attaching the inner wall surface of the recess to the diffusion membrane 232, the vibration transmission component 220 is adsorbed onto the diffusion membrane 232.

[0117] Understandably, when the inner wall of the recess is adsorbed and fixed to the backlight plate 210 or the diffusion film 232, the end of the vibration transmission member 220 deforms accordingly. In some embodiments, to facilitate the deformation of the end of the vibration transmission member 220, the end size of the vibration transmission member 220 is relatively large (e.g., ...). Figure 6 As shown in the figure, when both ends of the vibration transmission component 220 are fixed by negative pressure adsorption, the cross-sectional shape of the vibration transmission component 220 can be dumbbell-shaped.

[0118] In some embodiments, the vibration transmission component 220 can be connected to the backlight panel 210 by means of negative pressure adsorption, bonding, snap-fitting, welding, etc.

[0119] For example, the backlight panel 210 has a plurality of mounting holes 211 (e.g., ...) on the side facing the display panel 100. Figure 4 and Figure 5 As shown, the vibration transmission component 220 is correspondingly disposed in the mounting hole 211, that is, the vibration transmission component 220 and the backlight panel 210 are fixed by snap-fit, which can prevent the vibration transmission component 220 from falling off and the fixed stability of the vibration transmission component 220 is high.

[0120] In some embodiments, when the cross-sectional shape of the vibration transmission element 220 is rectangular, it can be fixed by interference fit with the mounting hole 211. When the cross-sectional shape of the vibration transmission element 220 is conical or trapezoidal, the mounting hole 211 can be a conical hole or a stepped hole (e.g., Figure 5 As shown in the figure, the diameter of the mounting hole 211 gradually decreases from the end away from the diffusion film 232 to the end closer to the diffusion film 232.

[0121] The axis of the mounting hole 211 can be perpendicular to the backlight panel 210. In some embodiments, the axis of the mounting hole 211 can also be inclined (not shown), that is, there is an angle between the axis of the mounting hole 211 and the vertical line of the backlight panel 210. In this case, the shape of the mounting hole 211 is not limited. In some embodiments, the vibration transmission member 220 can be a two-section bent structure (not shown), one end of which extends into the inclined mounting hole 211 and engages with the mounting hole 211, and the other end extends vertically toward the diffusion film 232 along the display device 10.

[0122] In some embodiments, to achieve the snap-fit ​​connection between the vibration transmission element 220 and the backlight panel 210, a fixing plate 212 (such as...) can also be laid on the backlight panel 210. Figure 4 As shown, the fixing plate 212 can be a metal or plastic part, such as an aluminum plate. A through hole is formed on the aluminum plate at the position corresponding to the mounting hole 211. One end of the vibration transmission component 220 extends into the mounting hole 211, and the other end extends towards the diffusion membrane 232 through the through hole on the fixing plate 212. The size of the through hole on the fixing plate 212 is smaller than the size of the mounting hole 211.

[0123] When a mounting hole 211 is provided on the backlight panel 210, the recess depth of the mounting hole 211 can be less than the thickness of the backlight panel 210. In some embodiments, the mounting hole 211 can also penetrate through the backlight panel 210.

[0124] In some embodiments, the two ends of the vibration transmission component 220 can be fixed by any two of the following methods: abutment, adhesion, snap-fit, and negative pressure adsorption. For example, the two ends of the vibration transmission component 220 can be adhered and fixed to the backlight panel 210 and the diffusion film 232 respectively (not shown), or one end of the vibration transmission component 220 can be snap-fitted to the backlight panel 210 and the other end can be adhered and fixed to the diffusion film 232 (not shown), resulting in higher stability. In some embodiments, one end of the vibration transmission component 220 can be adhered and fixed to the backlight panel 210 or snap-fitted, and the other end can be abutted or adsorbed to the diffusion film 232, making assembly more convenient and easier to disassemble and repair.

[0125] Figure 10 This is another structural schematic diagram of a vibration transmission element in a display device according to some embodiments of this application. Figure 11This is another structural schematic diagram of a vibration transmission element in a display device according to some embodiments of this application.

[0126] In some embodiments, at least a portion of the vibration transmission element 220 is a transparent light guide. For example, the light guide is made of light-guiding adhesive, which has low light absorption, high light transmittance, and low hardness, thus providing good buffering for the optical diaphragm assembly 230. The light guide is configured to conduct light emitted from the light source 213 to the display panel 100. In this way, the light guide can guide the first light ray L1 (e.g., light emitted from the light source 213) that enters its interior. Figure 11 (As shown by the broken line with the hollow arrow) the light is emitted towards one side of the display panel 100. Even if the vibration transmission element 220 is provided on the light-emitting side of the backlight panel 210, more of the first light ray L1 can be transmitted to one side of the display panel 100, resulting in lower light loss. In other words, when a vibration transmission element 220 is provided at a certain light source 213, at least a portion of the light generated by that light source 213 constitutes the first light ray L1 and is emitted through the corresponding vibration transmission element 220.

[0127] At this time, the vibration transmission element 220 can be set at any position on the backlight plate 210. For example, the vibration transmission element 220 can also be set between two adjacent light sources 213.

[0128] In some embodiments, please refer to Figure 10 and Figure 11 The vibration transmission component 220 is wrapped around the outside of the light source 213, and the light guide is located between the light source 213 and the display panel 100. That is, one end of the vibration transmission component 220 is covered on the outside of the light source 213, and the other end is connected to the optical film assembly 230, which can both support the optical film assembly 230 and protect the light source 213.

[0129] To facilitate the scattering of light from the light source 213, the interior of the vibration transmission component 220 may also be filled with air bubbles 223, silicone (not shown), etc., to uniformly distribute the first light L1.

[0130] In some embodiments, the cross-sectional dimensions of the vibration transmission element 220 may gradually increase from one end of the light source 213 to one end of the diffusion film 232, that is, the vibration transmission element 220 is approximately inverted conical. In some embodiments, the outer wall surface of the vibration transmission element 220 may also be convex to allow the first light ray L1 incident from the light source 213 into the vibration transmission element 220 to undergo total internal reflection within the vibration transmission element 220 (e.g., Figure 11(As shown). In some embodiments, an optical material may also be coated on the outer wall surface of the vibration transmitter 220, such as an elastic silicone layer covering the outer wall surface of the vibration transmitter 220, so that the light emitted by the light source 213 forms total internal reflection within the vibration transmitter 220 or only a portion of the light is emitted through the side wall surface of the vibration transmitter 220, for example, less than 20% of the light.

[0131] In this way, by designing the shape of the vibration transmission element 220 or the coating of the vibration transmission element 220, the overlapping area of ​​adjacent light sources 213 in the illumination area formed by the diffusion film 232 can be reduced, thereby reducing the backlight influence between different light sources 213, that is, reducing the mutual influence between different light control areas. For example, in the case of local dimming display, the brightness contrast of the display device 10 is better.

[0132] In some embodiments, the vibration transmitter 220 is an elastic plastic part, which is less expensive. In this case, the vibration transmitter 220 is disposed between adjacent light sources 213.

[0133] In some embodiments, a reflector may be attached to the surface of the vibration transmitter 220 or a reflective material may be sprayed on it to reduce the amount of light absorbed by the vibration transmitter 220 from the light source 213.

[0134] In some embodiments, the number of exciters 400 can be one or more. When there are multiple exciters 400, the multiple exciters 400 can be arranged at intervals so that different exciters 400 can belong to different channels. It is understood that each channel can correspond to one or more exciters 400.

[0135] The plurality of vibration transmission elements 220 include at least two vibration transmission element groups. The vibration transmission elements 220 in each vibration transmission element group are arranged around the outside of the corresponding exciter 400. That is, each exciter 400 has a set of vibration transmission element groups on its outside. Each vibration transmission element group includes a plurality of vibration transmission elements 220. In this way, the optical diaphragm group 230 at the corresponding position of each exciter 400 can be well supported, and the transmission efficiency at each position of the exciter 400 is high.

[0136] Figure 12 This is a schematic diagram of the structure of a display device in some embodiments of this application when an anti-wear component is provided between the diffusion film and the fluorescent film. Figure 13 This is another structural schematic diagram of a wear-resistant component disposed between the diffusion film and the fluorescent film in a display device according to some embodiments of this application. Figure 14 This is another structural schematic diagram of a wear-resistant component disposed between the diffusion film and the fluorescent film in a display device according to some embodiments of this application.

[0137] In some embodiments, to avoid wear of the optical diaphragm assembly 230 during the vibration of the actuator 400, please refer to... Figures 12 to 14 The display device 10 also includes an anti-wear component 600, which is disposed between the diffusion film 232 and the fluorescent film 231 so that the diffusion film 232 and the fluorescent film 231 are spaced apart.

[0138] In some embodiments, the abrasion-resistant component 600 may be polyethylene terephthalate (PET), which has a coating that can refract and reflect light. In other words, by designing the shape and structure of the abrasion-resistant component 600, the intensity of light at the location of the abrasion-resistant component 600 can be controlled.

[0139] This allows for uniform light control of the display device 10. For example, the wear-resistant component 600 positioned between two adjacent light sources 213 can prevent lower brightness in the area between the two adjacent light sources 213. In some embodiments, the display device 10 can also have a preset brightness within a preset viewing angle range. For example, the brightness of the display device 10 is higher within a 35-degree viewing angle range, while the brightness is lower outside the 45-degree viewing angle range. In some embodiments, it can also form an optical barrier, i.e., the overlapping area of ​​the illumination areas formed by adjacent wear-resistant components 600 on the front side of the diffusion film 232 is small, reducing the backlight influence between different wear-resistant components 600, that is, reducing the mutual influence between different light control areas. For example, in the case of local dimming, the display device 10 has better brightness contrast.

[0140] In some embodiments, the contact surface between the wear-resistant component 600 and the fluorescent film 231 is an arc surface, which is relatively smooth and can prevent the wear-resistant component 600 from scratching the fluorescent film 231. Alternatively, the contact surface between the wear-resistant component 600 and the diffusion film 232 can be a plane, which provides higher support stability and can also prevent scratching the diffusion film 232.

[0141] The curved surface protrudes towards the fluorescent film 231. In this way, the wear-resistant component 600 can be approximately configured as a convex lens structure to converge the light emitted by the light source 213, thus reducing the viewing angle and solving the problem of increased viewing angle and reduced brightness after the fluorescent film 231 and the diffuser film 232 are bonded together.

[0142] In some embodiments, the abrasion-resistant component 600 includes a plurality of first light processing layers 610 stacked sequentially, each first light processing layer 610 having a different refractive index. For example, the first light processing layer 610 can be three layers. For example, the first light processing layer 610 near the fluorescent film 231 has an arc surface, and the other two first light processing layers 610 are sheet-like. Adjacent first light processing layers 610 are bonded together with OCA (Optically Clear Adhesive) optical adhesive. The thickness of the first light processing layer 610 can be 1 micrometer to 3 micrometers, and the refractive index of each first light processing layer 610 is different, for example, its refractive index can be 1-3, so that some light is emitted through the arc surface of the abrasion-resistant component 600, while some light is emitted at a preset angle after multiple refractions and reflections by the abrasion-resistant component 600, thereby forming an optical barrier between the fluorescent film 231 and the diffusion film 232, reducing the influence between local dimming dynamic regions. For example, a local dimming dynamic area can be set to correspond to an anti-wear component 600, and an anti-wear component 600 can correspond to one light source 213 or multiple light sources 213.

[0143] In some embodiments, the abrasion-resistant component 600 includes a second light treatment layer 620 and a light reflector 630. The second light treatment layer 620 may be an OCA optical adhesive layer, and the light reflector 630 may be made of polymethyl methacrylate (PMMA), polycarbonate (PC), or the like.

[0144] The second light processing layer 620 consists of two layers, spaced apart and respectively attached to the diffusion film 232 and the fluorescent film 231. The edges of the two second light processing layers 620 are connected by a light reflector 630, used to reflect the second light ray L2 (e.g., light incident on the wear-resistant component 600) into the wear-resistant component 600. Figure 13 and Figure 14 (As shown by the broken line with the hollow arrow) it reflects towards the side of the fluorescent film 231.

[0145] In this way, the light emitted from the light source 213 enters the gap between the two second light processing layers 620 through one of the second light processing layers 620, and exits through the other second light processing layer 620. The light reflector 630 can reflect the second light ray L2 within the two second light processing layers 620, causing the second light ray L2 to be reflected towards the gap between the two second light processing layers 620 and exit through the other second light processing layer 620. That is, at least a portion of the light generated by one light source 213 constitutes the second light ray L2 and exits through the corresponding abrasion-resistant member 600, thereby reducing the impact on other illuminated areas, thus achieving the aforementioned "optical barrier" function.

[0146] In some embodiments, a filter element 640 is provided between the two second light processing layers 620. The filter element 640 can be made of PET. The filter element 640 is spaced apart from the second light processing layer 620 and is used to reflect the second light L2 toward the diffuser film 232 and then emit it again after being processed by the optical film group 230, so that the angle of the light emitted from the location of the second light processing layer 620 is more concentrated.

[0147] Figure 15 This is a schematic diagram of the structure of a vibration transmission element in a display device according to some embodiments of this application. Figure 16 for Figure 15 A cross-sectional view of a vibration transmission component.

[0148] In some embodiments, the vibration transmission element 220 may also be a composite material element; please refer to [link / reference]. Figure 15 and Figure 16 The vibration transmission component 220 includes a support portion 221 and a buffer portion 222. The support portion 221 is a rigid component, and for example, the support portion 221 is a metal component or a plastic component. In this way, the size and support strength of the support portion 221 are not affected by temperature. The buffer portion 222 is an elastic component, and for example, the buffer portion 222 is a rubber component, a silicone component, or a foam component. The buffer portion 222 has good elasticity and can have good buffering performance. The buffer portion 222 is at least provided at one end of the support portion 221 facing the optical diaphragm assembly 230, so that the buffer portion 222 can abut against the optical diaphragm assembly 230.

[0149] By setting the vibration transmission component 220 as a composite material, the impact of temperature rise on the vibration transmission component 220 can be reduced. The vibration transmission component 220 can be effectively supported between the optical film assembly 230 and the backlight plate 210, avoiding shrinkage of the vibration transmission component 220 due to temperature rise. This also avoids the optical film assembly 230 from being concave and deformed or even coming into contact with the light source 213, resulting in high structural stability of the display device 10.

[0150] The various embodiments or implementation methods described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0151] 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 an embodiment or example is included in at least one embodiment or example of the present invention. 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.

[0152] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention 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; and these 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 the present invention.

Claims

1. A display device, characterized in that, include: Display panel; A backlight module, comprising an optical film assembly, a backlight panel, and a plurality of spaced vibration transmission components; The optical film assembly is located between the display panel and the backlight panel; The optical film assembly includes a diffusion film, a fluorescent film, and a brightness enhancement film stacked sequentially, with the diffusion film disposed on the side facing the backlight panel; A wear-resistant component is disposed between the diffusion film and the fluorescent film, such that the diffusion film and the fluorescent film are spaced apart, and the projected area of ​​the wear-resistant component on the fluorescent film is smaller than the area of ​​the fluorescent film. Multiple actuators are spaced apart on the side of the backlight panel facing away from the display panel. Each actuator includes an actuator body and an actuator, which is connected to the backlight panel and is used to drive the backlight panel to vibrate. The backlight panel and the display panel are spaced apart and form a gas layer. The vibration transmission member is elastically pressed between the backlight panel and the optical film group to transmit the vibration of the backlight panel to the display panel.

2. The display device according to claim 1, characterized in that, Each of the exciters is provided with a set of vibration transmission components on its outer side, and the set of vibration transmission components includes a plurality of vibration transmission components arranged at intervals.

3. The display device according to claim 2, characterized in that, The vibration transmission components in the vibration transmission component group are arranged radially or in a ring shape with their corresponding exciter as the center.

4. The display device according to claim 3, characterized in that, The vibration transmission components in the vibration transmission component group are arranged in a circular pattern with their corresponding exciters as the center.

5. The display device according to claim 3, characterized in that, In its natural state, the height of multiple vibration transmitters in the vibration transmitter group along the vertical direction of the display panel gradually decreases from the side closer to the exciter body to the side farther away from the exciter body.

6. The display device according to claim 5, characterized in that, In its natural state, the height of each vibration transmitter in the vibration transmitter group along the vertical direction of the display panel is greater than the maximum gap of its corresponding gas layer.

7. The display device according to claim 3, characterized in that, At least one of the distribution density of the plurality of vibration transmitters in each vibration transmitter group and the support stiffness of each vibration transmitter gradually decreases from the side closer to the exciter body to the side farther away from the exciter body.

8. The display device according to any one of claims 1-7, characterized in that, It also includes an elastic connector, through which the actuator body and the backlight panel are connected.

9. The display device according to claim 8, characterized in that, The elastic connector includes either a rubber connector or a silicone connector.

10. The display device according to any one of claims 1-7, characterized in that, The contact surface between the wear-resistant component and the fluorescent film is an arc surface, which protrudes towards the fluorescent film. The contact surface between the wear-resistant component and the diffusion film is a plane.

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