Display device

Abstract

The utility model discloses a display device, comprising a display panel configured to display image information; the backlight assembly comprises a plurality of lamp panels, the plurality of lamp panels are mutually spliced, the lamp panels are configured to provide backlight for the display panel, a cavity is formed between the lamp panels and the display panel, a plurality of splicing positions are formed among the plurality of lamp panels, and the plurality of splicing positions comprise a first splicing position located in the middle of the display equipment; the exciter is arranged on the side, away from the display panel, of the lamp panel, and the exciter is suitable for driving the lamp panels on the two sides of the first splicing position to vibrate synchronously. According to the display equipment, the exciters are arranged at the splicing positions close to the middle of the display equipment in the splicing positions, so that the lamp panel in the middle area can be well pushed to vibrate, the vibration area and the vibration quality are reduced, the vibration sensitivity and the high-frequency ductility can be improved, and the medium-high-frequency sound production performance of the display equipment is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to display technical field especially is related to a display device. BACKGROUND

[0002] With the development of science and technology and the improvement of people's living standards, display devices are more and more applied in people's work and life.

[0003] In the related art, the display device includes a display panel, a lamp panel, an exciter, and a sound-emitting plate, the area of the lamp panel and the sound-emitting plate is similar to that of the display panel, the lamp panel is arranged on the sound-emitting plate, the exciter drives the lamp panel to vibrate through the sound-emitting plate, and then the vibration is transmitted through the cavity between the lamp panel and the display panel to realize the sound-emitting of the display panel.

[0004] However, since the exciter needs to drive the sound-emitting plate and the lamp panel to vibrate as a whole, the vibration mass and area are large, and the energy attenuation is fast, which leads to poor sound-emitting effect of the display panel. SUMMARY

[0005] The display device can reduce the vibration area and mass, improve the vibration sensitivity and high-frequency extension, and thus improve the mid-high frequency sound-emitting performance of the display device.

[0006] The utility model provides a kind of display device, comprising: display panel is configured to display image information;Backlight component, the backlight component includes multiple lamp panels, multiple the lamp panel is mutually spliced, the lamp panel is configured to provide backlight to the display panel, cavity is formed between the lamp panel and the display panel, multiple the splicing position is formed between multiple the lamp panel, multiple the splicing position includes the first splicing position located in the middle of the display device;Exciter, the exciter is located in the side of the lamp panel away from the display panel, the exciter is suitable for driving the lamp panel corresponding to the first splicing position synchronous vibration.

[0007] The display device of the utility model, since the exciter is arranged at the splicing position between adjacent lamp panels, only needs to be set on several splicing positions close to the middle of the display device in multiple splicing positions, i.e. can promote the vibration of the lamp panel in the middle region, equivalent to reduce vibration area and mass, can improve vibration sensitivity and high-frequency extension, so as to improve the mid-high frequency sound-emitting performance of the display device, and can also avoid the reliability risk of lamp panel and other optical structures caused by large-area long-time vibration of all lamp panels, such as lamp damage, diaphragm abrasion and other problems, which is conducive to improving picture quality.

[0008] In some embodiments, the display device further comprises a sound-emitting plate attached to a side of the lamp plate away from the display panel, and the sound-emitting plate covers the splicing positions and is connected with the lamp plate on both sides of the splicing positions, and the exciter is arranged on the sound-emitting plate.

[0009] In some embodiments, the plurality of lamp plates form a plurality of splicing positions distributed along a first direction, and a plurality of splicing positions close to the middle of the display device along the first direction are first splicing positions, and the sound-emitting plate covers the first splicing positions.

[0010] In some embodiments, the sound-emitting plate is symmetrically distributed about a center line of the display device along the first direction.

[0011] In some embodiments, the sound-emitting plate is a plurality of sound-emitting plates corresponding to the first splicing positions one by one, the exciter is arranged on at least part of the plurality of sound-emitting plates, and the exciter is symmetrically distributed about a center line of the display device along the first direction.

[0012] In some embodiments, the sound-emitting plate is one, the sound-emitting plate covers a plurality of first splicing positions at the same time, and the exciter is at least one, and the at least one exciter is symmetrically distributed about a center line of the sound-emitting plate along the first direction.

[0013] In some embodiments, two exciters are arranged on each sound-emitting plate, and the two exciters are arranged along the first direction or the second direction, and the first direction and the second direction are perpendicular to each other.

[0014] In some embodiments, the remaining splicing positions except the first splicing positions in the plurality of splicing positions are second splicing positions, and the display device further comprises a back plate, and the second splicing positions are fixedly connected with the back plate.

[0015] In some embodiments, the display device further comprises a first connecting member arranged between the first splicing positions and the sound-emitting plate to connect the lamp plate and the sound-emitting plate, and / or a second connecting member arranged between the second splicing positions and the back plate to connect the lamp plate and the back plate.

[0016] In some embodiments, an area of the back plate opposite to the plurality of sound-emitting plates protrudes in a direction away from the display panel along a thickness direction of the display panel to form a convex envelope, and the exciter is arranged in the convex envelope. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related art, the accompanying drawings needed to be used in the description of the embodiments or the related art will be briefly introduced. Obviously, the accompanying drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor. Among them:

[0018] Figure 1 A cross-sectional view of a display device of some embodiments of the present application;

[0019] Figure 2 A structural schematic diagram of a display device of some embodiments of the present application;

[0020] Figure 3 A structural schematic diagram of a display device of some embodiments of the present application;

[0021] Figure 4 A structural schematic diagram of a display device of some embodiments of the present application;

[0022] Figure 5 A structural schematic diagram of a display device of some embodiments of the present application;

[0023] Figure 6 A structural schematic diagram of a display device of some embodiments of the present application;

[0024] Figure 7 A structural schematic diagram of a display device of some embodiments of the present application;

[0025] Figure 8 A structural schematic diagram of a display device of some embodiments of the present application;

[0026] Figure 9 A structural schematic diagram of an exciter of a display device of some embodiments of the present application;

[0027] Figure 10 A structural schematic diagram of a display device of some embodiments of the present application;

[0028] Figure 11 A schematic diagram of an operating scenario between a display device and a control device shown in an embodiment of the present application;

[0029] Figure 12 A configuration block diagram of a display device of some embodiments of the present application;

[0030] Figure 13 A cross-sectional view of a display device in the related art;

[0031] Figure 14 A structural schematic diagram of a display device in the related art;

[0032] Figure 15 Structure diagram of a display device according to some embodiments of the present application;

[0033] Figure 16 Structure diagram of a display device according to some embodiments of the present application;

[0034] Figure 17 Structure diagram of a display device according to some embodiments of the present application;

[0035] Figure 18 Structure diagram of a display device according to some embodiments of the present application.

[0036] Explanation of reference numerals:

[0037] 10 - display device;

[0038] 100 - display panel; 110 - optical film assembly;

[0039] 200 - backlight assembly;

[0040] 210 - lamp plate; 212 - sound emitting plate; 213 - first connecting member; 221 - second connecting member; 216 - splicing position; 216a - first splicing position; 216b - second splicing position; 230 - plate body; 240 - light source;

[0041] 300 - support;

[0042] 500 - back plate; 504 - convex; 506 - perforation;

[0043] 400 - exciter;

[0044] 401 - exciter body; 451 - magnetic conducting member; 452 - magnetic member; 453 - dust core; 454 - terminal;

[0045] 410 - actuating member; 420 - elastic wave;

[0046] 900: control device; 901: tuner; 902: communicator; 903: detector; 904: external device interface; 905: controller; 906: display; 907: audio output interface; 908: memory; 909: power supply; 910: user interface;

[0047] 1001 - tweeter; 1002 - midrange speaker; 1003 - woofer;

[0048] M - cavity; N - magnetic air gap. DETAILED DESCRIPTION

[0049] With the development of science and technology and the improvement of people's living standards, display devices are increasingly applied in people's work and life. In the related art, a display device includes a display panel, a lamp panel, an exciter, and a sound-emitting plate, etc. The lamp panel is arranged on the side away from the display surface of the display panel. The lamp panel is arranged in an array and is spliced together. The sound-emitting plate and the spliced lamp panel have an area equal to that of the display panel. The lamp panel is arranged on the sound-emitting plate. The exciter drives the sound-emitting plate and the lamp panel to vibrate through the sound-emitting plate, and then transmits the vibration through the cavity between the lamp panel and the display panel to realize the sound-emitting of the display panel. However, since the exciter needs to drive the sound-emitting plate and the lamp panel to vibrate, the vibration mass and area are large, the energy decays fast, and the sound-emitting effect of the display panel still has a large room for improvement.

[0050] Therefore, the display device provided in the embodiments of the present application is arranged at the splicing position between adjacent lamp panels. The exciter is arranged at only a plurality of splicing positions close to the middle of the display device, which can better promote the vibration of the lamp panel in the middle region, equivalent to reducing the vibration area and vibration mass, and can improve the vibration sensitivity and high-frequency extension, thereby improving the mid-high frequency sound-emitting performance of the display device.

[0051] In order to make the above-mentioned purposes, features and advantages of the embodiments of the present application more apparent and easy to understand, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0052] The present application provides a display device 10, which can be a liquid crystal display device 10. For example, the display device 10 can be a Mini-LED display device. Compared with the lamp panel in an OLED display device, the lamp panel of the Mini-LED display device has greater hardness, and the exciter 400 can drive the whole Mini-LED lamp panel to vibrate together. The display device can have various implementation forms, such as a television, a smart television, a monitor, an electronic bulletin board, an electronic table, etc.

[0053] Figure 12 The present application shows a schematic diagram of an operation scene between a display device and a control device according to an exemplary embodiment. As shown in FIG. 1, the display device 10 includes a display panel 100, a lamp panel 200, an exciter 400, and a sound-emitting plate 300. Figure 12As shown, a user can operate the display device 10 via the smart device 20 or the control device 900. In some embodiments, the display device 10 also communicates with the server 30. The display device 10 may communicate via a local area network (LAN), a wireless local area network (WLAN), and other networks. The server 30 can provide various content and interactive features to the display device 10. The server 30 may be a cluster or multiple clusters, and may include one or more types of servers.

[0054] Figure 13 This is a schematic diagram of the device structure shown in an example, such as... Figure 13 As shown, the display device 10 includes a tuner / demodulator 901;

[0055] In some embodiments, the display device 10 includes a communicator 902; the communicator 902 is a component configured to communicate with external devices or servers according to various communication protocol types. For example, the communicator 902 may include at least one of a Wi-Fi module, a Bluetooth module, a wired Ethernet module, or other network communication protocol chips or near-field communication protocol chips, as well as an infrared receiver. The display device 10 can establish the transmission and reception of control signals and data signals with the control device 900 or the server 30 through the communicator 902.

[0056] In some embodiments, the display device 10 includes a detector 903; the detector 903 is configured to acquire signals from the external environment or interactions with the outside world. For example, the detector 903 includes a light receiver configured to acquire a sensor of ambient light intensity; or, the detector 903 includes an image acquisition device, such as a camera, which can be configured to acquire external environmental scenes, user attributes, or user interaction gestures; or, the detector 903 includes a sound acquisition device, such as a microphone, configured to receive external sounds.

[0057] In some embodiments, the display device 10 includes an external device interface 904; the external device interface 904 may include, but is not limited to, one or more interfaces such as: High Definition Multimedia Interface (HDMI), analog or data high-definition component input interface (component), composite video input interface (CVBS), USB input interface (USB), RGB port, etc. It may also be a composite input / output interface formed by multiple interfaces mentioned above.

[0058] In some embodiments, the display device 10 includes a controller 905.

[0059] In some embodiments, the display device 10 comprises a display 906. The display 906 comprises a display screen component configured to present a picture, and a driving component to drive the image display, configured to receive image signals originated from the controller output, and components to display video contents, image contents, and menu operation interfaces, and user operation UI interfaces.

[0060] The display 906 can be a liquid crystal display, an OLED display, and a projection display, and can also be a projection device and a projection screen.

[0061] In some embodiments, the display device 10 comprises an audio output interface 907.

[0062] In some embodiments, the display device 10 comprises a memory 908.

[0063] In some embodiments, the display device 10 comprises a power supply 909.

[0064] In some embodiments, the display device 10 comprises at least one of a user interface 910. The user interface 910 can be configured to receive control signals of the control device 900 (e.g., an infrared remote controller, etc.).

[0065] In some embodiments, the controller 905 comprises a processor.

[0066] In some embodiments, the controller 905 comprises a video processor.

[0067] In some embodiments, the controller 905 comprises an audio processor.

[0068] In some embodiments, the controller 905 comprises a graphics processor.

[0069] In some embodiments, the controller 905 comprises a RAM.

[0070] In some embodiments, the controller 905 comprises a ROM.

[0071] In some embodiments, the controller 905 comprises a first interface to an n-th interface configured to input / output signals.

[0072] In some embodiments, the tuner and demodulator 901 receives broadcast television signals through wired or wireless receiving modes, and demodulates audio and video signals, such as EPG data signals, from a plurality of wireless or wired broadcast television signals. The controller 905 and the tuner and demodulator 901 can be located in different separate devices, i.e., the tuner and demodulator 901 can also be located in an external device of the main device where the controller 905 is located, such as an external set-top box, etc.

[0073] The controller 905 controls the operation of the display device and responds to the user's operation by storing various software control programs in the memory. The controller 905 controls the overall operation of the display device 10. For example, in response to receiving a user command configured to select a UI object displayed on the display 906, the controller 905 can perform an operation related to the object selected by the user command.

[0074] In some embodiments, the controller includes at least one of a central processing unit (CPU), a video processor, an audio processor, a graphics processing unit (GPU), a RAM (Random Access Memory), a ROM (Read-Only Memory), a first interface to an n-th interface configured to input / output, a communication bus, etc.

[0075] The user can input a user command through a graphic user interface (GUI) displayed on the display 906, and the user input interface receives the user input command through the graphic user interface (GUI). Alternatively, the user can input a user command by inputting a specific sound or gesture, and the user input interface receives the user input command by recognizing the sound or gesture through a sensor.

[0076] The "user interface" is a medium interface for interaction and information exchange between an application or an operating system and a user, which implements conversion between an internal form of information and a form acceptable to the user. A commonly used form of the user interface is a graphic user interface (GUI), which refers to a user interface related to computer operation displayed in a graphical manner. It can be an icon, a window, a control, etc. displayed on the display screen of the electronic device, wherein the control can include an icon, a button, a menu, a tab, a text box, a dialog box, a status bar, a navigation bar, a widget, etc. visual interface elements.

[0077] The display device 10 has a sky side, a ground side, a left side, a right side, a front side, and a back side. The left side and the right side of the display device 10 refer to the left side and the right side of the user when the user faces the display surface of the display device. Accordingly, the side of the display device 10 facing the user is the front side, the side of the display device 10 facing away from the user is the back side, the upper side of the display device 10 is the sky side, and the lower side of the display device 10 is the ground side.

[0078] The display device 10 comprises a display panel 100, which can be configured to display image information such as text, images, etc. The display panel 100 comprises a display area and a circuit board located on one side of the display area, and the driving display of the entire display panel 100 is realized through the circuit board.

[0079] The display panel 100 is the main component of the display device 10, which mainly comprises a liquid crystal display panel 100, the liquid crystal display panel 100 comprises a color filter (CF) substrate, a thin film transistor (TFT) substrate (also referred to as an array substrate), and a liquid crystal (LC) layer, the liquid crystal layer is located between the color filter substrate and the array substrate. Among them, the thin film transistor substrate is provided with a data line and a scan line, and the direction of the liquid crystal molecule is changed by whether the data line and the scan line are energized, so as to make the light of the light source 240 pass through the color filter substrate and generate a picture of a preset color.

[0080] Since the liquid crystal display panel 100 itself cannot emit light, in order to make the display device 10 display normally, the display device 10 further comprises a backlight assembly 200, the backlight assembly 200 can be a direct type backlight assembly 200, the backlight assembly 200 comprises a lamp panel 210, the lamp panel 210 is arranged on the side away from the display surface of the display panel 100, the lamp panel 210 is configured to generate light, and the lamp panel 210 is configured to provide backlight for the display panel 100. It can be understood that the lamp panel 210 provides sufficient brightness and uniform distribution of backlight for the display panel 100, and the display panel 100 can modulate the backlight as needed to display different images.

[0081] The lamp panel 210 is arranged in an array and spliced, and a cavity M is formed between the lamp panel 210 and the display panel 100, that is, the plurality of lamp panels 210 can be arranged in multiple rows and multiple columns, or can be arranged in a single row, the total area of the plurality of lamp panels 210 is adapted to the area of the display panel 100, and the plurality of lamp panels 210 are connected with each other to form the cavity M with the display panel 100, and the cavity M has gas.

[0082] For example Figure 1 As shown, the lamp panel 210 can be eight arranged along the first direction, of course, in other possible examples, under the condition of ensuring that the spliced lamp panel 210 can cover the display panel 100, according to the size of each lamp panel 210, more or fewer lamp panels 210 can be arranged in the first direction, and the size of any two of the plurality of lamp panels 210 along the first direction can be the same or different, which can be reasonably set according to the position of the lamp panel 210.

[0083] The plurality of lamp panels 210 form a plurality of splicing positions 216, and two adjacent splicing positions 216 are located on two sides of the lamp panel 210 respectively. The plurality of splicing positions 216 includes a first splicing position 216a located in the middle of the display device 10. For example Figure 15 and Figure 16 As shown, when the lamp panel is one row, and the plurality of lamp panels 210 are arranged side by side along the first direction (such as the length direction of the display device 10), the first splicing position 216a refers to a plurality of splicing positions 216 located in the middle of the display device 10 along the first direction. Figure 17 and Figure 18 As shown, when the lamp panel is a plurality of rows and a plurality of columns, the first splicing position 216a refers to a plurality of splicing positions 216 located in the middle of the display device 10 along the first direction and the second direction (such as the height direction of the display device 10).

[0084] It should be noted that when the plurality of lamp panels 210 are arranged in an array and spliced, the splicing gaps of the lamp panel 210 are divided into two types, one type of splicing gap extends along the horizontal direction of the display device, and the other type of splicing gap extends along the vertical direction of the display device. The splicing position 216 of the present embodiment refers to the position corresponding to the splicing gap extending along the vertical direction of the display device 10. In other possible examples, the exciter 400 can be arranged at the horizontal splicing gap of the lamp panel 210, and / or the exciter 400 can be arranged at the cross splicing position of the lamp panel 210, that is, the intersection of the horizontal splicing position and the vertical splicing position.

[0085] Referring to Figure 1 , the display device 10 further includes an exciter 400 arranged at the side (for example, the back side of the lamp panel 210) of the lamp panel 210 away from the display panel 100. The exciter 400 can drive the lamp panels 210 on both sides of the first splicing position 216a to vibrate synchronously. When the lamp panel 210 vibrates, the gas in the cavity M is compressed, and the vibration is transmitted to the display panel 100 through the cavity M to drive the display panel 100 to vibrate, so that the display panel 100 can be configured to display and can also be configured to replace the loudspeaker to emit sound. That is, in the present embodiment, the exciter 400 can drive a plurality of lamp panels 210 close to the middle of the display panel 100 to vibrate, so that the lamp panels 210 in the middle region can emit sound by driving the display panel 100 to vibrate.

[0086] The gas in the cavity M can be equivalent to a damping spring. When the exciter 400 drives the lamp panel 210 to vibrate, the movement of the lamp panel 210 causes the gas to be compressed, so that the gas can transmit the vibration energy from one side of the lamp panel 210 to the other side of the display panel 100.

[0087] In some embodiments, the lamp plate 210 can include a plate body 230 and light sources 240. The plate body 230 can be an aluminum plate, a printed circuit board (PCB), or the like. The light sources 240 can be multiple, and the multiple light sources 240 are arranged on the side of the plate body 230 facing the display panel 100 and are arranged at intervals, so that the light sources 240 provide backlight for the display panel 100. The light sources 240 can be lamp beads, lamp strips, or the like, and the multiple light sources 240 can be fixed on the plate body 230 by clamping, threaded connection, or the like. The light sources 240 can be light-emitting diodes (LEDs), mini light-emitting diodes (Mini LEDs), or micro light-emitting diodes (Micro LEDs).

[0088] The light source of the type such as the mini light-emitting diode (Mini LED) has a relatively compact size, so that the gap between the lamp plate 210 and the liquid crystal display panel is relatively small, thereby reducing the thickness of the cavity M and improving the vibration transmission effect of the cavity M. Therefore, in this embodiment, the light source of the backlight module is taken as the mini light-emitting diode (Mini LED) for illustration.

[0089] For example, the gap of the cavity M can be 0.3mm-10mm, the maximum gap of the cavity M can be 10mm, or the gap of the cavity M can be 0.3mm or 1mm, etc. For example, when the gap of the cavity M is 1mm, the thickness of the cavity M is relatively small, which can improve the transmission efficiency of the vibration force output by the exciter; or when the gap of the cavity M is 0.3mm, the distance between the exciter 400 and the display panel 100 is relatively close, the vibration is more intense, and the sound production effect is better. When the gap of the cavity M is 10mm, the thickness of the cavity M is relatively large, which can avoid the mutual collision between the display panel 100 and the light source 240 at a certain position during vibration. Specifically, the gap of the cavity M can be any one of 0.3mm-0.5mm, 0.5mm-0.8mm, 0.8mm-1.5mm, 1.5mm-2mm, 2mm-3mm, 3mm-5mm, 5mm-8mm, 8mm-10mm, for example, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1.0mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm, 8mm, 8.5mm, 9mm, 9.5mm, 10mm, etc. It should be noted that the values and value ranges involved in the embodiments of the present application are approximate values, and there can be a certain range of errors due to the manufacturing process, which can be considered negligible by those skilled in the art.

[0090] Since the plurality of lamp panels 210 are arranged in an array and connected to each other, when the exciter 400 is arranged on a single lamp panel 210, the vibration energy is transmitted from the lamp panel 210 where the exciter 400 is located to the surrounding lamp panels 210, the vibration mass and area of the plurality of lamp panels 210 as a whole are large, which leads to fast attenuation of vibration energy (as shown in the figure, the actual measured kHz frequency response drops sharply), so that the sound production effect of the display device 10 at medium and high frequencies is poor. The display device 10 of the embodiment can better promote the vibration of the lamp panel 210 in the middle region by arranging the exciter 400 on the first splicing position 216a close to the middle of the display device 10, which is equivalent to reducing the vibration area and vibration mass, which can improve the vibration sensitivity and high-frequency extension, thereby improving the sound production performance of the display device 10 at medium and high frequencies (from the actual measurement curve, the average sensitivity is improved by more than 3dB, among which the 2000Hz is improved by more than 5dB, and the effective frequency range can be extended to 20kHz), which can also avoid the risk of increasing the reliability of the lamp panel 210 and other optical structures caused by long-term vibration of the large area of all lamp panels 210, such as lamp damage, film abrasion, etc., which is conducive to improving the picture quality. In addition, the number of exciters 400 can be reduced, thereby reducing the cost.

[0091] In some embodiments, the combination Figures 1-8 The display device 10 can further include a sound board 212. Specifically, the sound board 212 can be attached to a side of the lamp board 210 away from the display panel 100, and the sound board 212 can cover the splicing position 216 and be connected to the lamp boards 210 on both sides of the splicing position 216, and the exciter 400 is arranged on the sound board 212. That is, the lamp boards 210 on both sides of the splicing position 216 are connected through the sound board 212, and then the sound board 212 is driven to vibrate through the exciter 400, thereby driving the lamp boards 210 on both sides of the splicing position 216 to vibrate together.

[0092] Since the area of the sound board 212 is much smaller than the area of the display screen and the lamp board 210, the exciter 400 can further reduce the vibration area and the vibration mass under the premise of being able to drive the lamp boards 210 on both sides of the splicing position 216 to vibrate, thereby improving the vibration sensitivity and high-frequency extension, and the exciter 400 is arranged on the sound board 212, which can reduce the requirement for the installation precision of the exciter 400 compared with directly connecting the exciter 400 with the lamp board 210.

[0093] In addition, compared with the scheme of configuring the area of the sound board 212 to be the same as the area of the display screen so that the sound board 212 can connect all the lamp boards 210, since the reinforcement of the present embodiment only needs to cover the splicing position 216, the amount of double-sided adhesive tape consumed for connecting the sound board 212 and all the lamp boards 210 can be reduced, the process difficulty is reduced, the assembly consistency of the plurality of lamp boards 210 is improved, and batch production is facilitated.

[0094] In some embodiments, the sound board 212 can be a honeycomb board, that is, the sound board 212 has hexagonal honeycomb holes in the inside, and the honeycomb holes can be one layer or can be stacked in multiple layers. In this way, the sound board 212 has high structural strength and light weight, which is conducive to transmitting the vibration energy of the exciter 400 to the lamp board 210.

[0095] The thickness of the sound board 212 can be 1 mm-4 mm, for example, the thickness of the sound board 212 can be 1 mm, 2 mm, 3 mm, or 4 mm, of course, the present application does not limit this, and the thickness of the sound board 212 can be reasonably selected within the above range according to actual needs.

[0096] In some embodiments, referring to Figure 1 The plurality of lamp boards 210 form a plurality of splicing positions 216, and the plurality of splicing positions 216 are arranged along the first direction (for example Figure 1The plurality of splicing positions 216 are distributed at intervals in the left-right direction, that is, two adjacent splicing positions 216 are located on the two sides of the lamp plate 210, and some splicing positions 216 close to the middle of the display device 10 along the first direction among the plurality of splicing positions 216 are first splicing positions 216a, and the sound-emitting plate 212 covers the first splicing positions 216a. For example, the splicing positions 216 on the center line of the display device 10 along the first direction and some splicing positions 216 on both sides of the center line can be taken as the first splicing positions 216a. In some embodiments, when the plurality of lamp plates 210 have an even number of splicing positions 216, the first splicing positions 216a are an even number of splicing positions 216 in the middle region of the display device 10; when the lamp plate 210 has an odd number of splicing positions 216, the first splicing positions 216a are an odd number of splicing positions 216 in the middle region of the display device 10.

[0097] In this way, the exciter 400 can drive only some lamp plates 210 close to the middle region of the display device 10 to vibrate, so that the display panel 100 can realize middle sound emission. Compared with driving all the lamp plates 210 to vibrate by the exciter 400, the vibration area and mass can be reduced, so as to avoid the risk of increasing the reliability of the lamp plate 210 itself and other optical structures of the backlight assembly 200 caused by long-time vibration of the large-area lamp plate 210, and problems such as lamp damage and film abrasion, and improve the picture quality.

[0098] In some embodiments, the sound-emitting plates 212 are symmetrically distributed about the center line of the display device 10 along the first direction. For example, when there is only one sound-emitting plate 212, the sound-emitting plate 212 is located on the center line of the display device 10 along the first direction and is symmetric about the center line; when there are three sound-emitting plates 212, the middle sound-emitting plate 212 is located on the center line of the display device 10 along the first direction and is symmetric about the center line, and the other two sound-emitting plates 212 are symmetrically arranged on both sides of the center line. In this way, the sound-emitting plate 212 can uniformly transmit vibration energy to the lamp plates 210 on both sides of the center line of the display device 10, so as to improve the middle sound emission effect of the display device 10.

[0099] In some embodiments, referring to Figure 1 , the remaining splicing positions 216 except the first splicing positions 216a among the plurality of splicing positions 216 are second splicing positions 216b. The display device 10 can further include a back plate 500, and each second splicing position 216b is fixedly connected with the back plate 500. That is, the remaining lamp plates 210 except the lamp plates 210 connected with the sound-emitting plate 212 are fixedly connected with the back plate 500.

[0100] In this way, on the one hand, the back plate 500 can be used to isolate the vibration transmission between the lamp plate 210 in the middle region and the lamp plate 210 in the surrounding region, ensure that only the lamp plate 210 in the middle region vibrates, enhance the sensitivity of the vibration process of the lamp plate 210 in the middle region, and further improve the sound effect of the middle region of the display device 10. On the other hand, the back plate 500 can be used to provide installation support for the overall structure composed of the plurality of lamp plates 210, and ensure the structural stability of the backlight assembly 200 in the vibration process.

[0101] In some embodiments, with reference to Figures 2-5 , the sound generating plate 212 is a plurality of, the sound generating plate 212 corresponds to the first splicing position 216a, and the exciter 400 is arranged on at least part of the plurality of sound generating plates 212. In other words, the exciter 400 can be arranged on each sound generating plate 212, or only a part of the sound generating plate 212 can be provided with the exciter 400. Moreover, the exciter 400 is symmetrically distributed about the center line of the display device 10 in the first direction.

[0102] For example Figure 2 , as shown, the sound generating plate 212 and the first splicing position 216a are both three, wherein the middle sound generating plate 212 is located on the center line of the display panel 100 in the first direction, and the other two sound generating plates 212 are respectively located on both sides of the center line. The exciter 400 can be two, and the two exciters 400 are respectively arranged on the two sound generating plates 212 on both sides of the center line. In this way, the two exciters 400 can drive the four lamp plates 210 in the middle region to vibrate at the same time, and realize the sound generation in the middle of the display panel 100.

[0103] In some embodiments, in this case, the width of the sound generating plate 212 provided with the exciter 400 can be configured to be greater than the width of the sound generating plate 212 without the exciter 400. That is, the sound generating plate 212 without the exciter 400 only needs to ensure that it can connect two lamp plates 210, while the sound generating plate 212 provided with the exciter 400 can cover more area of the lamp plate 210, so as to ensure that the vibration energy is better transmitted from the sound generating plate 212 to the lamp plate 210.

[0104] For example Figure 3As shown, the sound generating plate 212 and the first splicing position 216a are both three, wherein the middle sound generating plate 212 is located on the center line of the display panel 100 in the first direction, and the other two sound generating plates 212 are respectively located on both sides of the center line. The exciter 400 can be one, and the exciter 400 is arranged on the sound generating plate 212 located on the center line. In this way, the exciter 400 can drive the two lamp plates 210 in the middle region to vibrate simultaneously, and sound generation in the middle of the display panel 100 is realized. In some embodiments, in this case, the width of the sound generating plate 212 provided with the exciter 400 can be configured to be greater than the width of the sound generating plate 212 without the exciter 400, that is, the sound generating plate 212 without the exciter 400 only needs to ensure that it can connect the two lamp plates 210, and the sound generating plate 212 provided with the exciter 400 can cover more area of the lamp plate 210 to ensure that the vibration energy is better transmitted from the sound generating plate 212 to the lamp plate 210.

[0105] For example Figure 4 As shown, the sound generating plate 212 and the first splicing position 216a are both one, and the sound generating plate 212 is located on the center line of the display panel 100 in the first direction. The exciter 400 can be one, so that the exciter 400 can drive the two lamp plates 210 in the middle region to vibrate simultaneously, and sound generation in the middle of the display panel 100 is realized.

[0106] It can be understood that, since the sound generating plate 212 only needs to cover the splicing position 216 between the adjacent two lamp plates 210, the width of the sound generating plate 212 is small, the area of the sound generating plate 212 is small, and thus the connection area of the sound generating plate 212 and the lamp plate 210 is small, and the connection structure such as double-sided adhesive tape required for the connection of the sound generating plate 212 and the lamp plate 210 is also small, which can reduce the process difficulty and reduce the production cost.

[0107] In some embodiments, referring to Figures 6-8 , the sound generating plate 212 is one, the sound generating plate 212 simultaneously covers a plurality of first splicing positions 216a, and the exciter 400 is at least one. The at least one exciter 400 is symmetrically distributed about the center line of the sound generating plate 212 in the first direction.

[0108] For example Figure 6 As shown, the sound generating plate 212 is one, and the sound generating plate 212 can simultaneously cover two or more first splicing positions 216a. At the same time, the sound generating plate 212 also covers the lamp plate 210 between the adjacent two first splicing positions 216a. In this way, the consistency of the vibration action of the plurality of lamp plates 210 in the middle region of the display device 10 can be further improved,

[0109] In some embodiments, two exciters 400 are arranged on each sound board 212, and the two exciters 400 are arranged in the first direction or in the second direction, the first direction being perpendicular to the second direction.

[0110] For example Figure 7 As shown, the sound board 212 is one, the sound board 212 covers two or more first splicing positions 216a at the same time, and the sound board 212 also covers the lamp plate 210 between the adjacent two first splicing positions 216a, the exciters 400 are two, the two exciters 400 are arranged side by side and spaced apart on the sound board 212 in the first direction, and the two exciters 400 are symmetrically distributed about the center line of the sound board 212 in the first direction.

[0111] For example Figure 8 As shown, the sound board 212 is one, the sound board 212 covers two or more first splicing positions 216a at the same time, and the sound board 212 also covers the lamp plate 210 between the adjacent two first splicing positions 216a, the exciters 400 are two, the two exciters 400 are arranged side by side and spaced apart on the sound board 212 in the first direction, and the two exciters 400 are symmetrically distributed about the center line of the sound board 212 in the first direction.

[0112] In this way, by arranging two exciters 400 on one sound board 212, the vibration energy of the two exciters 400 can be further enhanced, thereby improving the sound effect of the middle part of the display device 10. Moreover, the vibration energy of the lamp plate 210 on both sides of the line in the display device 10 is transmitted more evenly.

[0113] In some embodiments, with reference to Figure 1 , the display device 10 further comprises a first connecting piece 213. Specifically, the first connecting piece 213 is arranged between the first splicing position 216a and the sound board 212 to connect the lamp plate 210 and the sound board 212, and the first connecting piece 213 can be double-sided adhesive. In this way, the lamp plate 210 and the sound board 212 can be simply and reliably connected, and the cost is relatively low.

[0114] In some embodiments, the first connecting piece 213 can have a certain elasticity to ensure that the lamp plate 210 on both sides of the first splicing position 216a has a certain degree of displacement in the front-back direction to realize vibration.

[0115] Correspondingly, with reference to Figure 1In addition, the display device 10 can further include a second connecting member 221. Specifically, the second connecting member 221 is arranged between the second splicing position 216b and the back plate 500 to connect the lamp plate 210 and the back plate 500. The second connecting member 221 can be double-sided adhesive tape or foam, and the second adhesive member 250 extends along the edge of the lamp plate 210. In this way, the lamp plate 210 and the back plate 500 can be simply and reliably connected, and the cost is low.

[0116] In addition, since the plurality of lamp plates 210 are arranged in an array, the plurality of lamp plates 210 form a plurality of splicing positions 216 in a second direction (for example, the up-down direction) in addition to the first direction (for example, the left-right direction). In this embodiment, the splicing positions 216 in the second direction can each be connected to the back plate through the second connecting member 221. In this way, it can be ensured that only the lamp plates 210 in the middle region vibrate to achieve sound generation in the middle of the display panel 100.

[0117] In some embodiments, the area of the back plate 500 opposite the plurality of sound generation plates 212 protrudes in the thickness direction of the display panel 100 and away from the display panel 100 to form a convexity 504, and the exciter 400 is arranged in the convexity 504. For example, the convexity 504 can be provided with a through hole 506, and the exciter 400 can be arranged in the convexity 504 through the through hole 506. Since the exciter 400 has a certain thickness in the front-back direction of the display device 10, the convexity 504 is provided to facilitate the arrangement of the relevant structure of the exciter 400 inside the back plate 500, prevent the back plate 500 from affecting the vibration of the exciter 400, and avoid the display device 10 being too large in size due to the thickening of the entire area of the back plate 500, which is beneficial to the compact structure.

[0118] In combination with the above Figures 2-8 In consideration of the fact that the exciter 400 is arranged in the middle region of the display device 10 and can only achieve sound generation in the middle, in order to improve the three-dimensional sound generation effect of the display device 10, in this embodiment, the display device 10 can further include a loudspeaker. The loudspeaker includes a tweeter 1001, a woofer 1003, and a mid-range speaker 1002. The number and arrangement position of each of the tweeter 1001, the woofer 1003, and the mid-range speaker 1002 can be reasonably set according to actual needs. In this way, by matching the sound generation in the middle region of the display panel 100 with the loudspeaker (including the tweeter 1001, the woofer 1003, and the mid-range speaker 1002), the sound generation effect of the display device 10 can be further improved, thereby improving the user experience.

[0119] In the related art, compared with a display device with an OLED light source as a light source, because the OLED display screen is a self-luminous screen, and the OLED display screen itself has a certain flexibility, an exciter is arranged on the back of the OLED display screen, so that the OLED display screen can elastically deform and emit sound under the excitation vibration of the exciter. In the liquid crystal display device 10 of the present application, the liquid crystal display device has a backlight assembly 200, and it is not possible to directly arrange an exciter on the back of the display panel 100, and the lamp plate in the backlight assembly 200 has a large hardness, and it is difficult to couple and transmit the vibration of the lamp plate to the display panel 100, and the transmission efficiency of the vibration force is low. Therefore, a support transmission assembly can be arranged in the cavity M between the display panel 100 and the lamp plate 210 of the Mini-LED display device 10 or other liquid crystal display device 10, the support transmission assembly can include a plurality of support pieces 300, and the support pieces 300 are used as a transmission medium of vibration to transmit the vibration of the lamp plate 210 to the display panel 100, thereby improving the transmission efficiency of the vibration from the lamp plate 210 to the display panel 100. In addition, the support pieces 300 can maintain the gap of the cavity M between the lamp plate 210 and the display panel 100 within a predetermined range, avoiding the risk of collision noise and abrasion caused by the light source 240 and the display panel 100 touching each other at a certain position.

[0120] For example, referring to Figure 10 The support transmission assembly includes a plurality of support pieces 300, the plurality of support pieces 300 are supported between the backlight plate 210 and the display panel 100, and are arranged at intervals along the backlight plate 210, one end of the plurality of support pieces 300 is connected with the backlight plate 210, and the other end of the plurality of support pieces 300 is connected with the display panel 100, so that the gap of the cavity M between the backlight plate body 230 and the display panel 100 can be maintained within a predetermined range, avoiding the situation that the light source 240 and the display panel 100 touch each other at a certain position to generate collision noise.

[0121] In addition, the support pieces 300 can also be used as a transmission medium of vibration to transmit the vibration of the backlight plate 210 to the display panel 100, thereby improving the transmission efficiency of the vibration from the backlight plate 210 to the display panel 100.

[0122] In addition, the support pieces 300 can also be used as a transmission medium of vibration to transmit the vibration of the backlight plate 210 to the display panel 100, thereby improving the transmission efficiency of the vibration from the backlight plate 210 to the display panel 100.

[0123] It can be understood that the material of the support 300 can be a silica gel material that is easy to guide light. The silica gel material has a small hardness, that is, the support 300 is one of a silica gel member or a rubber member.

[0124] In addition, it should be noted that, considering that the internal temperature of the display device 10 changes when the display device 10 is working, the material such as silica gel or rubber ages with the change of temperature, which leads to a decrease in the buffering effect of the support 300, a decrease in the support strength, and a decrease in the vibration transmission efficiency. In some embodiments, the support 300 can also have a composite structure.

[0125] In some embodiments, the two ends of the support 300 can be connected by negative pressure adsorption. For example, the two ends of the support 300 can be provided with suction disc structures, and the two ends of the support 300 are fixedly connected with the lamp panel 210 and the display panel 100 by the suction disc structures, respectively. The process is simple to implement.

[0126] In some embodiments, one end of the support 300 is connected by the first adhesive structure 310, and the other end of the support 300 is connected by the suction disc structure. For example, one end of the support 300 is connected with the lamp panel 210 by the first adhesive structure 310, and the other end of the support 300 is fixedly connected with the display panel 100 by the suction disc structure. Thus, the support 300 can be fixed by double-sided adhesion or mechanical structure fixation, thereby realizing the vibration linkage of the lamp panel 210 and the display panel 100 and improving the vibration transmission efficiency. However, the double-sided adhesion or mechanical structure fixation has the disadvantage of complex process implementation, and the suction disc adsorption scheme can improve the realizability of the scheme.

[0127] In some embodiments, the support 300 can be made of a silica gel material with a set transparency. A plurality of bubble structures or light guiding particles such as silica particles can be arranged in the support 300. Along a direction parallel to a plane where the silica particles are located, the distribution density of the bubble structures or the silica particles gradually decreases in a direction away from the longitudinal central axis of the support 300. The bubble structures or the light guiding particles with the above distribution rule cooperate with the shape of the support 300, so that the support 300 has a light uniformization effect on the light emitted by the light source, which can uniformly distribute the uneven light intensity of the light source, and is beneficial to optimizing the display effect of the display device.

[0128] In some embodiments, the surface of the support 300 is coated with a reflective film layer or coated with a reflective material. In some embodiments, the support 300 also has a light control effect. In a local dimming display mode, the surface of the support 300 is coated with a reflective film layer or coated with a reflective material, so that the light emitted by different light control areas is reflected on the surface of the support 300 in other control areas. The elastic support 60 reduces the mutual influence of light between different light control areas, thereby avoiding the interference of light between different local dimming display areas.

[0129] In some embodiments, the exciter 400 can be any one or more of an electromagnetic exciter 400, a magnetostrictive exciter 400, and a piezoelectric exciter 400, which is more suitable. Further, the exciter 400 can further include a magnetic field generating unit (such as a magnetic piece) and a vibration coil, the magnetic field generating unit is configured to generate a magnetic field, by inputting a constantly changing current in the vibration coil, so that the vibration coil constantly changes the force in the magnetic field generated by the magnetic field generating unit, thereby generating vibration.

[0130] In some embodiments, referring to Figure 9 , the exciter 400 includes an exciter body 401 and an actuator 410, wherein the exciter body 401 and the actuator 410 are connected to the side of the sound board 212 away from the display panel 100, and the exciter body 401 and the sound board 212 form a magnetic air gap N, and the actuator 410 is vibratably arranged in the magnetic air gap N and configured to drive the lamp plate 210 to vibrate.

[0131] When the exciter 400 is started, the actuator 410 vibrates and transmits vibration energy to the lamp plate 210 through the sound board 212, drives the lamp plate 210 to vibrate, and transmits the vibration on one side of the lamp plate 210 to the display panel 100 through the cavity M to drive the display panel 100 to vibrate and sound. In this way, the display device 10 of the embodiment can realize front sound, and the sound source position of the display device 10 and the picture sound position are close, realizing sound and picture integration, and the user's audio-visual effect is better.

[0132] Referring to Figure 9 , taking the exciter 400 as an electromagnetic exciter as an example, the actuator 410 is a voice coil (i.e. a conductive coil), and the exciter body 401 is a magnetic assembly. The magnetic assembly is configured to generate a magnetic field, and the voice coil vibrates in the magnetic field along the axis direction of the voice coil, i.e. the voice coil constitutes the actuator 410.

[0133] The magnetic assembly includes a magnetic conducting member 451, a magnet 453 and a magnetic member 452, which are well known to those skilled in the art. The magnetic conducting member 451 is in the shape of a cylinder with an opening. The magnet 453 is arranged on the bottom surface of the magnetic conducting member 451. The magnetic member 452 is arranged on the magnet 453. The magnetic member 452 and the magnet 453 have a gap with the inner wall of the magnetic conducting member 451, which is referred to as a magnetic gap. The magnetic assembly is configured to provide a stable magnetic field in the magnetic gap.

[0134] One end of the voice coil is connected to the lamp plate 210. A connecting piece can be arranged between the voice coil and the lamp plate 210 to increase the connection area between the voice coil and the lamp plate 210 and prevent the voice coil and the lamp plate 210 from being separated from each other. The other end of the voice coil is inserted into the magnetic gap. The voice coil is fixed to the exciter body 401 by the spring wave 420. With the change of the magnetic field, the voice coil is forced to move reciprocally along the axial direction of the voice coil.

[0135] The voice coil has a terminal 454. One end of the terminal 454 extends to the outside of the exciter body 401 to facilitate the connection with an external power supply.

[0136] In some possible embodiments, the circumferential outer side of the exciter body 401 can be provided with a plurality of elastic legs. The material of the elastic legs can be metal or plastic. The number of the elastic legs can be 3-5. The exciter body 401 is connected to the sound board 212 by the elastic legs. The elastic legs are arranged at intervals along the circumference of the exciter body, so that the exciter body and the sound board 212 have a plurality of connection positions, and the fixing stability of the exciter 400 is higher.

[0137] The elastic legs protrude from the outer wall of the exciter body and are connected to the sound board 212 or the lamp plate 210. Since the elastic legs can be elastically deformed, the exciter body and the lamp plate 210 can move relatively, that is, during the vibration of the exciter 400, the exciter body can vibrate relative to the lamp plate 210, so that the exciter 400 drives the display panel 100 to vibrate in an inertial driving mode, which helps to excite a low-frequency sound with better sound effect.

[0138] In some embodiments, the backlight assembly 200 further includes an optical film assembly 110. The display panel 100 is located on the light exit side of the optical film assembly 110, and the lamp plate 210 is located on the light entrance side of the optical film assembly 110. That is, the display panel 100, the optical film assembly 110 and the lamp plate 210 are stacked along the thickness direction of the display device 10.

[0139] The optical film assembly 110 can be of different types according to the type of light emitted by the light source 240. For example, when the light source 240 emits white light, the optical film assembly 110 can include a reflective sheet, a light guide plate, a brightness enhancement film, etc. The reflective sheet is attached to the side of the plate body 230 on which the light source 240 is arranged.

[0140] When the light source 240 emits blue light, the optical film assembly 110 can include a diffusion film, a fluorescent film, and a brightness enhancement film. The diffusion film is arranged on the front side of the light source 240, and the user mixes the light rays of the plurality of light sources 240 uniformly, that is, converts the point light source 240 into a surface light source 240. The fluorescent film converts the light rays emitted by the light source 240 into white light rays, so that the color of the light rays emitted by the light source 240 is not limited, and the light source 240 can emit blue light or purple light. The brightness enhancement film is configured to improve the brightness of the light rays. It can be understood that when the light source 240 emits white light, the optical film assembly 110 can also include a diffusion film, a fluorescent film, and a brightness enhancement film. The present embodiment is described by taking the optical film assembly 110 including the diffusion film, the fluorescent film, and the brightness enhancement film as an example.

[0141] In some embodiments, the display panel 100 (i.e., the liquid crystal screen described above) and the optical film assembly 110 can be pressed together to avoid having air gaps between the display panel 100, the brightness enhancement film, the fluorescent film, and the diffusion film, which can communicate with the external air.

[0142] In some embodiments, the liquid crystal screen and the optical film assembly 110 can also be bonded and fixed to each other, for example, by using light-sensitive glue (UV glue), foam, double-sided adhesive, etc. That is, the display panel 100 and the optical film assembly 110 can be connected as a whole by bonding and fixing, and at this time, the cavity M is formed between the optical film assembly 110 and the panel body 230.

[0143] When the display panel 100 and the optical film assembly 110 are pressed together, there can be a gas gap between the display panel 100 and the brightness enhancement film 111, between the brightness enhancement film 111 and the fluorescent film 112, and between the fluorescent film 112 and the diffusion film 113. The sealed cavity M is formed between the display panel 100 and the lamp panel 210, and the gas gap is in a closed state. The sealed cavity M is closed, that is, the gas in the sealed cavity M and the external air do not communicate with each other. The sealed cavity M can be equivalent to a damping spring configured to transmit the vibration between the lamp panel 210 and the display panel 100.

[0144] In some embodiments, the display device 10 further includes a rear shell located on the side of the back plate 500 facing away from the display panel 100, that is, the rear shell is arranged on the rear side of the back plate 500. The controller and the electrical connection line of the display device 10 can be arranged between the back plate 500 and the rear shell 600 to simplify the appearance of the display device 10. The material of the rear shell 600 can be plastic, metal, etc.

[0145] In this application, unless otherwise clearly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection, and can also be communication; can be direct connection, can also be indirect connection through intermediate medium, can be internal communication of two elements or interaction relationship of two elements. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0146] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0147] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A display device, characterized in that, include: The display panel is configured to display image information; A backlight assembly includes multiple lamp panels that are spliced ​​together. The lamp panels are configured to provide backlight to the display panel. A cavity is formed between the lamp panels and the display panel. Multiple splicing positions are formed between the multiple lamp panels, including a first splicing position located in the middle of the display device. An exciter is provided on the side of the lamp panel facing away from the display panel to drive the lamp panel corresponding to the first splicing position to vibrate synchronously.

2. The display device according to claim 1, characterized in that, Also includes: A sound-emitting panel is disposed on the side of the light panel opposite to the display panel, and the sound-emitting panel covers the first splicing position and is connected to the light panels on both sides of the first splicing position. The exciter is located on the sound-generating plate.

3. The display device according to claim 2, characterized in that, The sound-emitting plates are symmetrically distributed about the center line of the display device along a first direction.

4. The display device according to claim 3, characterized in that, There are multiple sound-emitting panels, and each sound-emitting panel corresponds to the first splicing position. The exciter is disposed on at least a portion of the plurality of sound-producing plates.

5. The display device according to claim 4, characterized in that, The exciters are symmetrically distributed about the centerline of the display device along the first direction.

6. The display device according to claim 3, characterized in that, The sound-emitting plate is a single unit, and the sound-emitting plate simultaneously covers multiple of the first splicing positions. The exciter is at least one, and at least one of the exciters is symmetrically distributed about the center line of the sound-emitting plate in the first direction.

7. The display device according to claim 5 or 6, characterized in that, Each of the aforementioned sound-generating plates is provided with two exciters. The two actuators are arranged at a distance along the first direction, or the two actuators are arranged at a distance along the second direction. The first direction and the second direction are perpendicular to each other.

8. The display device according to claim 3, characterized in that, Of the multiple splicing positions, the remaining splicing positions other than the first splicing position are the second splicing positions. The display device further includes a back panel, and the second splicing positions are all fixedly connected to the back panel.

9. The display device according to claim 8, characterized in that, Also includes: A first connector is disposed between the first splicing position and the sound-emitting plate to connect the light panel and the sound-emitting plate; and / or, The second connector is located between the second splicing position and the back panel to connect the light panel and the back panel.

10. The display device according to claim 8, characterized in that, The area of ​​the back plate opposite to the plurality of sound-emitting plates protrudes along the thickness direction of the display panel and away from the display panel to form a convex hull, and the exciter passes through the convex hull.

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