Rear housing assembly and display device

Abstract

The embodiment of the application provides a back shell assembly and a display device, and relates to the technical field of display devices. The back shell assembly comprises a back shell and a lamp plate. The lamp plate is installed on the back shell. The embodiment of the application installs the lamp plate on the back shell, so that the back plate is no longer needed to bear the lamp plate, the existing back plate of the display device can be omitted, and in the actual assembly process of the display device, the lamp plate is only needed to be installed on the back shell first, then the display panel and the optical film are assembled on the back shell, and the assembly of the entire display device is completed. The assembly process and product structure are simple, and the production cost is low.

Description

Technical Field

[0001] This application relates to the technical field of display devices, specifically to a back cover assembly and a display device. Background Technology

[0002] For current display panels, components such as LED strips, motherboards, power supplies, and chassis are generally mounted on a back panel, which is then covered by an outer shell. As a result, existing display devices have complex structures, are difficult to assemble, and have high manufacturing costs. Utility Model Content

[0003] This application provides a back cover assembly and a display device, aiming to solve the problems of complex structure, difficult assembly, and high manufacturing cost of existing display devices.

[0004] On one hand, embodiments of this application provide a rear shell assembly, including:

[0005] The rear shell; and,

[0006] A light panel, which is mounted on the rear housing.

[0007] In some embodiments, the rear shell is a plastic part.

[0008] In some embodiments, the rear housing includes a mounting area for mounting the lamp panel and a reflective area surrounding the mounting area;

[0009] The rear shell is provided with a reflective structure at the part of the reflective area, which is used to reflect the light emitted by the lamp panel.

[0010] In some embodiments, the rear housing is recessed at the mounting area to form a mounting cavity, the lamp panel covers the mounting cavity, and a functional module is provided on the side of the lamp panel facing the mounting cavity, while an LED is provided on the side of the lamp panel facing away from the mounting cavity.

[0011] In some embodiments, the reflective area of ​​the rear housing defines a reflective cavity with one end open, the lamp panel is mounted at the bottom of the reflective cavity to space the reflective cavity and the mounting cavity, and the open end of the reflective cavity is used for mounting a display panel.

[0012] In some embodiments, the reflective structure includes reflective ribs protruding from the reflective area.

[0013] In some embodiments, the reflective ribs are arranged in a ring.

[0014] In some embodiments, a plurality of reflective ribs are provided, and the plurality of reflective ribs are spaced apart from the radial direction of the light panel.

[0015] In some embodiments, the reflective rib has a connecting end connected to the rear shell and a reflective end disposed opposite to the connecting end, and a light-transmitting groove is formed on the reflective end.

[0016] In some embodiments, at least a portion of the light-transmitting slots of two adjacent reflective ribs are aligned; and / or,

[0017] The light-transmitting grooves are provided in multiple directions along the circumference of the lamp plate; and / or,

[0018] At least a portion of the light-transmitting groove is aligned with the lamp bead; and / or,

[0019] Of the two adjacent reflective ribs in the radial direction of the light panel, there is a first reflective rib closer to the light panel and a second reflective rib farther away from the light panel;

[0020] In the depth direction of the mounting cavity, the reflective section of the first reflective rib protrudes beyond the reflective end of the second reflective rib.

[0021] In some embodiments, the functional module includes one or more of a power module, a mechanism, and a memory chip.

[0022] In some embodiments, the rear housing has a plurality of heat dissipation holes communicating with the mounting cavity, and at least some of the heat dissipation holes are aligned; and / or,

[0023] The distance between the side of the lamp panel containing the functional module and the bottom of the mounting cavity is 10-35mm.

[0024] In some embodiments, a lamp bead mounting area is formed on the lamp panel, and the lenses of the lamp beads located at the edge of the lamp bead mounting area are inclined outward from the lamp panel.

[0025] In some embodiments, the lens is tilted at an angle of α, where 0° < α < 10°; and / or,

[0026] The plurality of lamps in the lamp installation area are arranged in an array with the length direction of the lamp board as the horizontal direction and the width direction of the lamp board as the vertical direction. The plurality of lamps includes a first lamp, a second lamp, and a third lamp located at the edge of the array.

[0027] The first LED is located at the intersection of the horizontal and vertical sides of the array, the second LED is located on the horizontal side of the array and between adjacent first LEDs, and the third LED is located on the vertical side of the array and between adjacent first LEDs.

[0028] The tilt angle of the first LED is b, the tilt angle of the second LED is c, and the tilt angle of the third LED is d, where b > d > c.

[0029] On the other hand, embodiments of this application provide a display device, including:

[0030] Rear housing assembly, as described in any of the rear housing assemblies above; and,

[0031] The display panel is mounted on the rear housing assembly.

[0032] In some embodiments, an optical film is provided on the side of the display panel facing the rear housing assembly.

[0033] In some embodiments, the optical film includes a reflective polarizer.

[0034] This embodiment of the application directly mounts the lamp board onto the rear shell, thus eliminating the need for a back plate to support the lamp board. This eliminates the need for the existing back plate of the display device. In the actual assembly process of the display device, it is only necessary to first mount the lamp board onto the rear shell, and then assemble the display panel and optical film onto the rear shell to complete the assembly of the entire display device. The assembly process and product structure are simple, and the manufacturing cost is low. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a side view of a display device provided in some embodiments of this application;

[0037] Figure 2 yes Figure 1 A schematic diagram of the internal structure of the display device in the image;

[0038] Figure 3 yes Figure 2 Enlarged view of a portion of the image;

[0039] Figure 4 yes Figure 2 A three-dimensional structural diagram of the central light panel;

[0040] Figure 5 yes Figure 4 A three-dimensional structural diagram of the light panel from another perspective;

[0041] Figure 6 yes Figure 1A three-dimensional structural diagram of the rear shell.

[0042] Explanation of key component symbols:

[0043] label name label name 100 Display devices 10 Back cover 20 Light panel 11 Installation area 12 Reflection zone 13 Mounting cavity 14 Functional modules 15 Reflective strips 151 Reflecting end 152 Light-transmitting groove 153 First reflector 154 Second reflector 16 Heat dissipation holes 30 Display panel 22 lens 23 First LED bead 24 Second LED 25 Third LED 26 Optical films 17 Reflecting cavity Detailed Implementation

[0044] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0045] In the description of this application, it should be understood that the terms "center," "vertical," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0046] "A and / or B" includes the following three combinations: A only, B only, and a combination of A and B.

[0047] The use of "applies to" or "configured to" in this application implies open and inclusive language, which does not exclude the applicability to or configuration to devices performing additional tasks or steps. Additionally, the use of "based on" implies openness and inclusivity, because processes, steps, calculations, or other actions "based on" one or more of the stated conditions or values ​​may in practice be based on additional conditions or values ​​beyond those stated.

[0048] In this application, the term "exemplary" is used to mean "used as an example, illustration, or description." Any embodiment described as "exemplary" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use this application. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that this application can be made without using these specific details. In other instances, well-known structures and processes are not described in detail to avoid obscuring the description of this application with unnecessary detail. Therefore, this application is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0049] For current display panels, components such as LED strips, motherboards, power supplies, and chassis are generally mounted on a back panel, which is then covered by an outer shell. As a result, existing display devices have complex structures, are difficult to assemble, and have high manufacturing costs.

[0050] Please see Figures 1 to 6 In this regard, an embodiment of this application provides a rear shell assembly, including a rear shell 10 and a light panel 20; the light panel 20 is mounted on the rear shell 10.

[0051] It should be noted that the installation method of the light board 20 on the rear shell 10 is not limited. It can be installed by gluing, snapping, screwing, etc., and is not limited here. The specific implementation of the light board 20 is not limited. It can be composed of multiple light strips assembled together, or it can be a number of LEDs set directly on a PCB board without using light strip splicing, etc., and is not limited here. The rear shell assembly can also include functional modules 14 such as power supply, mechanism, and motherboard. Of course, it can also only include the rear shell 10 and the light board 20, and is not limited here.

[0052] This embodiment of the application directly mounts the lamp board 20 onto the rear shell 10, thereby eliminating the need for a back plate to support the lamp board 20. This eliminates the need for a back plate in existing display devices. In the actual assembly process of the display device 100, it is only necessary to first mount the lamp board 20 onto the rear shell 10, and then assemble the display panel 30 and the optical film 26 onto the rear shell 10 to complete the assembly of the entire display device 100. The assembly process and product structure are simple, and the manufacturing cost is low.

[0053] Furthermore, the material of the rear shell 10 is not limited; it can be made of metal, plastic, or other materials, etc., and is not limited here.

[0054] In some embodiments, the rear shell 10 is a plastic part. Correspondingly, since the rear shell 10 is a plastic part, it can be injection molded during the manufacturing process. After molding, the lamp panel 20 can be directly installed onto the rear shell 10 to complete the assembly of the entire rear shell assembly. The entire assembly process is simple and made of plastic material, which can effectively reduce the material cost of the rear shell assembly.

[0055] It should be emphasized that the rear cover 10 may only have the function of mounting the lamp panel 20. Of course, in some embodiments, the rear cover 10 may have the function of reflecting the light emitted by the lamp panel 20, thereby improving the uniformity of the light emission of the display device 100.

[0056] For details, please refer to the following: Figure 6 In some embodiments, the rear shell 10 includes a mounting area 11 for mounting the lamp panel 20 and a reflective area 12 surrounding the mounting area 11; wherein, the rear shell 10 is provided with a reflective structure at the location of the reflective area 12, the reflective structure being used to reflect the light emitted by the lamp panel 20.

[0057] In the technical solution of this embodiment, by setting a reflection structure in the reflection area 12, the light emitted by the lamp panel 20 can be reflected by the reflection structure, so that at least part of the light emitted by the lamp panel 20 is reflected multiple times in the reflection area 12 before being emitted, thereby improving the uniformity of light output.

[0058] It should be noted that the specific implementation of the reflective structure is not limited. It can be a reflective layer on the back shell 10, or a reflective rib protruding on the back shell 10. The reflective rib realizes diffuse reflection of light, thereby improving the uniformity of light emitted by the display device 100. Alternatively, the back shell 10 can be made of plastic material with good reflective properties, etc., which are not limited here.

[0059] Furthermore, it should be emphasized that, since the reflective structure is provided on the rear shell 10, the reflective sheet in the existing display device can be omitted when assembling the display device 100, thereby further reducing the material cost of the display device 100.

[0060] Furthermore, it should be noted that the display device 100 generally requires two PCBs: one as the LED board 20 and the other as the motherboard. The motherboard can house functional modules 14 such as the chip and power supply. Specifically, the rear cover 10 can have the LED board 20 and the motherboard mounted separately, or the LED board 20 and the motherboard can be integrated; this is not limited here. Please refer to the following for details. Figures 2 to 6In some embodiments, the rear shell 10 is recessed at the mounting area 11 to form a mounting cavity 13, the lamp plate 20 covers the mounting cavity 13, and a functional module 14 is provided on the side of the lamp plate 20 facing the mounting cavity 13, while lamp beads are provided on the side of the lamp plate 20 facing away from the mounting cavity 13.

[0061] In the technical solution of this embodiment, by setting the functional module 14 on the lamp board 20, the lamp board 20 can simultaneously serve as the motherboard of a traditional television set, eliminating the need for a separate motherboard and thus saving on PCB material costs. Furthermore, during actual installation, it is not necessary to install the motherboard and the lamp board 20 separately; only the lamp board 20 needs to be installed, optimizing the assembly process and saving labor costs. In addition, the functional module 14 and the LED beads are respectively located on opposite sides of the lamp board 20 in the thickness direction, ensuring that the functional module 14 does not obstruct the light emitted by the LED beads and preventing the occurrence of shadows.

[0062] It should be emphasized that, in the embodiments of this application, the display device 100 has eliminated the existing back panel. At this time, the functional module 14 and the lamp board 20 on the original motherboard are simultaneously mounted on the back cover 10. The functional module 14 on the original motherboard is likely to block the light emitted by the lamp board 20, thereby affecting the uniformity of the light emitted by the display device 100.

[0063] In this application, a corresponding recess is formed to form a mounting cavity 13, and the functional modules 14 such as the power supply, the mechanism, and the memory chip are installed in the mounting cavity 13. The lamp bead is located outside the mounting cavity 13, which can effectively prevent the light emitted by the lamp bead from entering the mounting cavity 13 and causing light leakage.

[0064] The specific implementation of the functional module 14 is not limited, and it may include power supply, mechanism, memory chip, etc., which are not limited here.

[0065] Furthermore, the reflective area 12 of the rear shell 10 defines a reflective cavity 17 with one end open. The lamp panel 20 is mounted on the bottom of the reflective cavity 17 to separate the reflective cavity 17 from the mounting cavity 13. The open end of the reflective cavity 17 is used for mounting the display panel 30.

[0066] In the technical solution of this embodiment, by using the reflection area 12 to define the reflection cavity 17, the light emitted by the lamp panel 20 can be reflected multiple times in the reflection cavity 17, thereby improving the uniformity of the emitted light.

[0067] Furthermore, the lamp plate 20 is installed at the bottom of the reflective cavity 17 to separate the reflective cavity 17 and the mounting cavity 13, thereby isolating the reflective cavity 17 and the mounting cavity 13. On the one hand, this can prevent dust in the mounting cavity 13 from entering the reflective cavity 17 and affecting the reflection of light. On the other hand, it can also prevent light from the reflective cavity 17 from entering the mounting cavity 13, thus preventing light leakage.

[0068] It should be noted that the specific way in which the lamp plate 20 separates the reflective cavity 17 and the mounting cavity 13 is not limited. The lamp plate 20 can be directly installed between the reflective cavity 17 and the mounting cavity 13, so that the side of the lamp plate 20 with the lamp beads forms the bottom of the reflective cavity 17, and the side of the lamp plate 20 with the functional module 14 forms the top of the mounting cavity 13. In addition, in some embodiments, in order to improve the isolation effect, a ring of sealant can be applied around the periphery of the lamp plate 20 during installation, thereby further improving the isolation effect between the reflective cavity 17 and the mounting cavity 13.

[0069] The opening end of the reflective cavity 17 is used for mounting the display panel 30. Specifically, in addition to mounting the display panel 30, the opening end of the reflective cavity 17 can also be used to mount the optical film 26. Of course, in some embodiments, the display device 100 does not have an optical film 26, such as a brightness enhancement film, a reflective film, etc. In this case, the opening end of the reflective cavity 17 is only provided with the display panel 30.

[0070] Furthermore, to enhance the uniformity of light emitted by the display device 100, the reflective structure includes reflective ribs 15 protruding from the reflective area 12. In this embodiment, by setting the reflective ribs 15, the light emitted by the lamp panel 20 can be reflected. When there are multiple reflective ribs 15, the light can be reflected back and forth multiple times, resulting in diffuse reflection in the reflective cavity 17, which greatly improves the uniformity of light emission. It should also be emphasized that, since the back shell 10 is made of plastic in some embodiments, compared with metal, the plastic back shell 10 is weaker. When assembling the display device 100, since the display device 100 also eliminates the metal back plate, the overall strength of the display device 100 will be lower than that of the existing ones. In this case, by setting the reflective ribs 15, the strength of the back shell 10 can be enhanced, thereby enhancing the overall strength of the display device 100, so that the display device 100 can maintain greater strength even without a back plate.

[0071] Furthermore, by setting the reflective rib 15, the light emitted by the lamp panel 20 can be diffusely reflected in the reflective cavity 17, thereby making the uniformity of the light emitted by the reflective cavity 17 good enough. This also eliminates the need for the reflective sheet in the existing display device, greatly reducing the material cost of the display device 100 and simplifying the assembly process of the display device 100.

[0072] The specific shape of the reflective rib 15 is not limited; it can be elongated, triangular, or other shapes, etc., and is not limited here.

[0073] Furthermore, in one embodiment, the reflective rib 15 is arranged in a ring.

[0074] In the technical solution of this embodiment, by setting the reflective rib 15 into a ring, the reflective rib 15 is arranged around the circumference of the lamp panel 20 to form a complete circle, reflecting the light emitted by the lamp panel 20 in 360 degrees, thereby further improving the reflection effect.

[0075] The number of reflective ribs 15 is not limited; it can be one or more. In some embodiments, multiple reflective ribs 15 are provided, and they are spaced apart from the radial direction of the lamp panel 20. That is, in this embodiment, multiple rings of reflective ribs 15 are provided on the outer side of the lamp panel 20, so that light can be reflected back and forth between the multiple rings of reflective ribs 15, further improving the uniformity of light output.

[0076] It should be noted that, due to the presence of the reflective rib 15, the amount of light reaching the edge of the reflective cavity 17 will inevitably be reduced, and the diffusion distance of some light emitted by the lamp panel 20 will also be hindered. Therefore, in order to allow more light to diffuse to the edge of the rear shell 10 and increase the diffusion distance and range of the light, in some embodiments, the reflective rib 15 has a connecting end connected to the rear shell 10 and a reflective end 151 opposite to the connecting end, and a light-transmitting groove 152 is provided on the reflective end 151.

[0077] In the scheme of this embodiment, by opening a light-transmitting groove 152 at the reflective end of the reflective rib, some of the light emitted by the lamp panel 20 can pass through the reflective rib through the light-transmitting groove 152, allowing more light to reach the edge of the rear shell 10, thereby improving the uniformity of light output.

[0078] It should be noted that the specific shape of the light-transmitting groove 152 is not limited, and it can be circular, square, arc-shaped, etc., which is not limited here. The size of the light-transmitting groove 152 is also not limited, and can be set according to actual needs in actual use.

[0079] When multiple reflective ribs 15 are provided, some of the reflective ribs 15 may have the light-transmitting grooves 152, or all of the reflective ribs 15 may have the light-transmitting grooves 152. No limitation is made here.

[0080] In a further embodiment, each of the reflective ribs 15 is provided with a light-transmitting groove 152. At least a portion of the light-transmitting grooves 152 of two adjacent reflective ribs 15 are aligned. With this arrangement, at least a portion of the light emitted by the lamp panel 20 can pass directly through the multiple reflective ribs sequentially from the multiple aligned light-transmitting grooves 152, increasing the light delivery distance and allowing more light to reach the edge of the rear shell 10, thereby improving the uniformity of light output.

[0081] Of course, for a single reflective rib 15, it may have only one light-transmitting groove 152 or multiple light-transmitting grooves, which is not limited here. In one embodiment, multiple light-transmitting grooves 152 are provided along the circumference of the lamp plate 20. By providing multiple light-transmitting grooves 152, the amount of light hitting the edge of the rear shell 10 can be increased, further improving the uniformity of light output.

[0082] Specifically, the number of the multiple light-transmitting slots 152 can be two, three, four, etc., and is not limited here. It can be flexibly set according to the needs.

[0083] Furthermore, in some embodiments, at least a portion of the light-transmitting groove 152 is aligned with the lamp bead. With this arrangement, at least a portion of the light emitted by the lamp bead can pass directly through the reflector 15 from the light-transmitting groove 152 aligned with it, without being reflected by the reflector 15. Moreover, a portion of the light reflected by the reflector 15 will also pass through the reflector 15 from the light-transmitting groove 152, thereby increasing the light delivery distance and improving the uniformity of the emitted light.

[0084] Of course, in some embodiments, the light-transmitting grooves 152 of two adjacent reflective ribs 15 are aligned, and the light-transmitting grooves 152 are aligned with the lamp beads. That is, at least part of the light emitted by the lamp beads can pass through the multiple aligned light-transmitting grooves 152 without reflection and reach the edge of the rear shell 10, thereby improving the light transmission distance and the brightness at the edge.

[0085] The reflective ends 151 of the multiple reflective ribs 15 can be arranged flush or at different heights, which is not limited here. Among the two adjacent reflective ribs 15 in the radial direction of the lamp panel 20, there is a first reflective rib 153 closer to the lamp panel 20 and a second reflective rib 154 farther away from the lamp panel 20. In the depth direction of the mounting cavity 13, the reflective section of the first reflective rib 153 protrudes beyond the reflective end 151 of the second reflective rib 154.

[0086] In the scheme of this embodiment, by having the reflective section of the first reflective rib 153 protrude from the reflective end 151 of the second reflective rib 154 in the depth direction of the reflective cavity 17, that is, the reflective end 151 of the outer reflective rib is higher than that of the inner reflective rib, so that at least part of the light reflected by the inner reflective rib can be reflected again on the outer reflective rib, thereby improving the uniformity of light output from the reflective cavity 17.

[0087] Furthermore, the specific implementation of the functional module 14 is not limited, and it may include power supply, mechanism, memory chip, etc., which are not limited here.

[0088] In one embodiment, the functional module 14 includes one or more of a power module, a mechanism, and a memory chip. Correspondingly, in this embodiment, one or more of the power module, mechanism, and memory chip are installed on the lamp board 20, thereby directly installing all the functional modules 14 on the existing motherboard onto the lamp board 20. This eliminates the need for a motherboard, saves on PCB board material costs, and reduces the installation process for the motherboard.

[0089] At this time, since the functional module 14 and the lamp bead are both installed on the lamp board 20, the heat generated by the lamp board 20 is greater than that of the existing lamp board 20. Therefore, in some embodiments, the rear shell 10 is provided with a plurality of heat dissipation holes 16 that communicate with the mounting cavity 13, and at least some of the heat dissipation holes 16 are aligned.

[0090] In the scheme of this embodiment, by setting some of the heat dissipation holes 16 to be aligned, the heat dissipation airflow flowing into one of the heat dissipation holes 16 can quickly flow out from the corresponding heat dissipation hole 16, thereby increasing the airflow speed and enhancing the heat dissipation capacity. In addition, the airflow in the mounting cavity 13 can also quickly dissipate heat from the lamp board 20. Compared with the traditional display device 100, the distance between the lamp bead and the heat dissipation airflow is closer, resulting in better heat dissipation.

[0091] It should be emphasized that the depth of the mounting cavity 13 should not be too large, otherwise the overall thickness of the display device 100 will be too thick. Of course, it should not be too shallow either, otherwise the heat dissipation effect will be poor. Therefore, in some embodiments, the distance between the side of the lamp board 20 where the functional module 14 is mounted and the bottom of the mounting cavity 13 is 10 to 35 mm.

[0092] It should be noted that the thickness or height of functional modules 14, such as power modules, chassis, and memory chips, is generally between 8 and 17 mm. By setting the distance between the side of the lamp board 20 on which the functional modules 14 are mounted and the bottom of the mounting cavity 13 to 10 to 35 mm, a gap of 2 to 18 mm is created between the functional modules 14 and the bottom of the mounting cavity 13. This effectively improves heat dissipation and prevents the maximum thickness of the display device 100 from being too thick, thus affecting the user's perception.

[0093] The lens 22 of the lamp bead can be arranged parallel to the lamp plate 20 or it can be arranged at an angle. There is no limitation here. In one embodiment, a lamp bead mounting area 11 is formed on the lamp plate 20. The lens 22 of the lamp bead located at the edge of the lamp bead mounting area 11 is arranged at an angle to the outside of the lamp plate 20.

[0094] It should be explained that LED beads generally have a light-emitting chip and a lens 22 covering the light-emitting chip. By setting the lens 22, the light emitted by the light-emitting chip can have a larger diffusion range and more uniform brightness. For LED beads in non-edge positions, the lens 22 can be set at an angle or parallel to the lamp panel 20, which is not limited here.

[0095] In the scheme of this embodiment, by setting the lens 22 of the lamp bead at the edge position to be tilted outward, the light of the lamp bead at the edge position can be sent further, thereby increasing the light transmission distance of the lamp panel 20 and enhancing the brightness at the edge of the back cover 10.

[0096] When the tilt angle of lens 22 is too large, some light rays will be refracted or reflected when passing through lens 22, causing the light rays to deviate from the expected propagation direction and become ineffective. This light loss directly reduces the overall light output efficiency of the LED. One of the functions of lens 22 is to converge the scattered light emitted by the LED into a more concentrated beam, thereby improving the light intensity and uniformity. However, if the tilt angle is too large, lens 22 cannot effectively converge the light rays, resulting in a decrease in light output efficiency. Therefore, in a further embodiment, the tilt angle of the tilted lens 22 is α, where 0° < α < 10°. In this embodiment, by setting the tilt angle to below 10°, it is possible to effectively ensure reduced light loss and improved converging efficiency.

[0097] Specifically, the tilt angle of the lens 22 refers to the fact that the light-emitting surface of the lens 22 is tilted relative to the lamp panel 20, and the tilt angle refers to the angle between the light-emitting surface of the lens 22 and the lamp panel 20.

[0098] It should be noted that the tilt angle of the lens 22 of the lamp beads can be the same, for example, all of them are 1° or 2°, etc., or they can be different, which is not limited here.

[0099] In some embodiments, a plurality of lamps in the lamp mounting area 11 are arranged in an array with the length direction of the lamp panel 20 as the horizontal direction and the width direction of the lamp panel 20 as the vertical direction. The plurality of lamps includes a first lamp 23, a second lamp 24, and a third lamp 25 located at the edge of the array. The first lamp 23 is located at the junction of the horizontal and vertical sides of the array. The second lamp 24 is located on the horizontal side of the array and between adjacent first lamps 23. The third lamp 25 is located on the vertical side of the array and between adjacent first lamps 23. The tilt angle of the first lamp 23 is b, the tilt angle of the second lamp 24 is c, and the tilt angle of the third lamp 25 is d, where b > d > c.

[0100] It should be explained that the array arrangement refers to the horizontal and vertical arrangement of the multiple LEDs. The spacing between the LEDs in the horizontal and vertical directions can be equal or unequal, and the number of LEDs in each row in the horizontal direction and the number of LEDs in each row in the vertical direction can also be equal or unequal; no limitation is made here. The greater the tilt angle of the lens 22, the greater its light transmission distance.

[0101] In existing display devices, the length is generally greater than the width, meaning that the distance between the lamp panel 20 and the edge of the back cover 10 in the horizontal direction is greater. Correspondingly, the tilt angle of the lamp beads located on the vertical side is made greater than the tilt angle of the lamp beads located on the horizontal side, so that more light can be directed to the edge of the back cover 10 in the horizontal direction. Furthermore, the tilt angle of the first lamp bead 23 located at the corner is set to the maximum, so that more light from the first lamp bead 23 can be transmitted to the corner of the back cover 10.

[0102] In this embodiment, the tilt angle of the lens 22 of the LED bead is adjusted according to the distance between the LED bead and the corner of the back cover 10, which can further improve the uniformity of light emitted from the reflective cavity 17.

[0103] This utility model also proposes a display device 100, which includes a display panel 30 and a rear shell assembly. The specific structure of the rear shell assembly is as described in the above embodiments. Since this display device 100 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0104] It should be noted that the display device 100 in this embodiment may also include components such as a middle frame and a reflective sheet, so that the middle frame is mounted on the back shell 10 and the display panel 30 is mounted on the middle frame, thereby indirectly mounting the display panel 30 on the back shell assembly. Of course, in some embodiments, in order to reduce costs, the display panel 30 may be directly mounted on the back shell assembly, thereby omitting the middle frame and reducing material costs and installation steps.

[0105] In some embodiments, an optical film 26 is provided on the side of the display panel 30 facing the rear housing assembly. By providing the optical film 26, the uniformity of light emitted by the display device 100 can be further improved.

[0106] Specifically, the type of optical film 26 is not limited; it can be a brightness enhancement film, a polarizer, a reflective film, etc.

[0107] In a further embodiment, the optical film 26 includes a reflective polarizer, which can reflect a portion of the incident light back, and after some diffuse reflection by the reflective structure inside the reflective cavity 17, return to the light incident surface of the display panel 30, thereby improving the uniformity of the emitted light.

[0108] Specifically, the reflective polarizer can be a DBEF film.

[0109] The back cover assembly and display device provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A rear shell assembly, characterized in that, include: Back cover; as well as, A light panel, which is mounted on the rear housing; The rear housing includes a mounting area for mounting the lamp panel and a reflective area surrounding the mounting area. The rear shell is provided with a reflective structure at the part of the reflective area, which is used to reflect the light emitted by the lamp panel.

2. The rear shell assembly according to claim 1, characterized in that, The rear shell is made of plastic.

3. The rear shell assembly according to claim 1, characterized in that, The rear shell is recessed in the mounting area to form a mounting cavity. The lamp panel covers the mounting cavity, and a functional module is provided on the side of the lamp panel facing the mounting cavity. Multiple lamp beads are provided on the side of the lamp panel facing away from the mounting cavity.

4. The rear shell assembly according to claim 3, characterized in that, The reflective area of ​​the rear shell defines a reflective cavity with one end open. The lamp panel is mounted at the bottom of the reflective cavity to separate the reflective cavity from the mounting cavity. The open end of the reflective cavity is used for mounting the display panel.

5. The rear shell assembly according to claim 3, characterized in that, The reflective structure includes reflective ribs protruding from the reflective area.

6. The rear shell assembly according to claim 5, characterized in that, The reflective ribs are arranged in a ring.

7. The rear shell assembly according to claim 5 or 6, characterized in that, The reflective ribs are provided in multiple ways, and are spaced apart from each other in the radial direction of the light panel.

8. The rear shell assembly according to claim 7, characterized in that, The reflective rib has a connecting end that is connected to the rear shell and a reflective end that is opposite to the connecting end, and a light-transmitting groove is formed on the reflective end.

9. The rear shell assembly according to claim 8, characterized in that, At least a portion of the light-transmitting grooves of two adjacent reflective ribs are aligned; and / or, The light-transmitting grooves are provided in multiple directions along the circumference of the lamp plate; and / or, At least a portion of the light-transmitting groove is aligned with the lamp bead; and / or, Of the two adjacent reflective ribs in the radial direction of the light panel, there is a first reflective rib closer to the light panel and a second reflective rib farther away from the light panel; In the depth direction of the mounting cavity, the reflective section of the first reflective rib protrudes beyond the reflective end of the second reflective rib.

10. The rear shell assembly according to claim 3, characterized in that, The functional modules include one or more of the following: power module, mechanism, and memory chip.

11. The rear shell assembly according to claim 3, characterized in that, The rear shell has multiple heat dissipation holes communicating with the mounting cavity, and at least some of the heat dissipation holes are aligned; and / or, The distance between the side of the lamp panel where the functional module is mounted and the bottom of the mounting cavity is 10~35mm.

12. The rear shell assembly according to claim 3, characterized in that, The lamp panel has a lamp bead mounting area, and the lamp beads located at the edge of the lamp bead mounting area have lenses that are tilted outward from the lamp panel.

13. The rear shell assembly according to claim 12, characterized in that, The lens is tilted at an angle of α, where 0° < α < 10°; and / or, The plurality of lamps in the lamp installation area are arranged in an array with the length direction of the lamp board as the horizontal direction and the width direction of the lamp board as the vertical direction. The plurality of lamps includes a first lamp, a second lamp, and a third lamp located at the edge of the array. The first LED is located at the intersection of the horizontal and vertical sides of the array, the second LED is located on the horizontal side of the array and between adjacent first LEDs, and the third LED is located on the vertical side of the array and between adjacent first LEDs. The tilt angle of the first LED is b, the tilt angle of the second LED is c, and the tilt angle of the third LED is d, where b > d > c.

14. A display device, characterized in that, include: Rear housing assembly, as described in any one of claims 1 to 13; as well as, The display panel is mounted on the rear housing assembly.

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