Rear shell assembly and display device

Abstract

The embodiment of the invention provides a rear shell assembly and display equipment, and relates to the technical field of display equipment, and the rear shell assembly comprises a rear shell and a lamp panel; according to the embodiment of the invention, the lamp panel is mounted on the rear shell, so that a back plate does not need to bear the lamp panel any more, the back plate of the existing display equipment can be omitted, and in the actual display equipment assembling process, only the lamp panel needs to be mounted on the rear shell firstly, and then the lamp panel is mounted on the rear shell. And then the display panel and the optical film are assembled on the rear shell, so that the assembly of the whole display equipment can be completed, the assembly process and the product structure are simple, and the production and manufacturing cost is low.

Description

Technical Field

[0001] This application relates to the technical field of display devices, and particularly to a rear shell assembly and a display device. Background Art

[0002] For current display panels, components such as light bars, main boards, power supplies, and movement units are generally installed on the back plate, and a housing is provided outside the back plate to cover the back plate. Therefore, the structure of existing display devices is complex, the assembly difficulty is high, and the production and manufacturing cost is high. Summary of the Invention

[0003] Embodiments of this application provide a rear shell assembly and a display device, aiming to solve the problems of complex structure, high assembly difficulty, and high production and manufacturing cost of existing display devices.

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

[0005] A rear shell; and

[0006] A light board, which is installed on the rear shell.

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

[0008] In some embodiments, the rear shell includes an installation area for installing the light board and a reflection area surrounding the outside of the installation area;

[0009] Wherein, a reflection structure is provided at the part of the rear shell located in the reflection area, and the reflection structure is used to reflect the light emitted by the light board.

[0010] In some embodiments, the part of the rear shell located in the installation area is recessed to form an installation cavity, the light board covers the installation cavity, and a functional module is provided on the side of the light board facing the installation cavity, and light beads are provided on the side of the light board facing away from the installation cavity.

[0011] In some embodiments, the reflection area of the rear shell defines a reflection cavity with one end open, the light board is installed at the bottom of the reflection cavity to separate the reflection cavity and the installation cavity, and the open end of the reflection cavity is used for installing a display panel.

[0012] In some embodiments, the reflection structure includes a light reflecting rib protruding from the reflection area.

[0013] In some embodiments, the light reflecting rib is arranged in a ring shape.

[0014] In some embodiments, there are multiple light reflecting ribs, and the multiple light reflecting ribs are arranged at intervals in the radial direction of the light board.

[0015] In some embodiments, the light reflecting rib has a connecting end connected to the rear case and a reflecting end disposed opposite to the connecting end, and a light transmitting groove is formed in the reflecting end.

[0016] In some embodiments, at least part of the light transmitting grooves of two adjacent light reflecting ribs are disposed in alignment; and / or,

[0017] A plurality of the light transmitting grooves are formed along the circumference of the lamp board; and / or,

[0018] At least part of the light transmitting grooves are disposed in alignment with the lamp beads; and / or,

[0019] Among two adjacent light reflecting ribs in the radial direction of the lamp board, a first light reflecting rib close to the lamp board and a second light reflecting rib far from the lamp board are included;

[0020] In the depth direction of the installation cavity, the reflecting section of the first light reflecting rib protrudes from the reflecting end of the second light reflecting rib.

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

[0022] In some embodiments, the rear case is provided with a plurality of heat dissipation holes communicating with the installation cavity, and at least part of the heat dissipation holes are disposed in alignment; and / or,

[0023] The distance between the side of the lamp board where the functional module is installed and the bottom of the installation cavity is 10 to 35 mm.

[0024] In some embodiments, a lamp bead installation area is formed on the lamp board, and for the lamp beads located at the edge position of the lamp bead installation area, their lenses are inclined outward from the lamp board.

[0025] In some embodiments, for the lens disposed in an inclined manner, the inclination angle is a, 0° < a < 10°; and / or,

[0026] The plurality of lamp beads in the lamp bead installation area are arranged in an array. Taking 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 lamp beads include a first lamp bead, a second lamp bead, and a third lamp bead located at the edge of the array;

[0027] The first lamp bead is located at the intersection of the horizontal side and the vertical side of the array, the second lamp bead is located on the horizontal side of the array and between adjacent first lamp beads, and the third lamp bead is located on the vertical side of the array and between adjacent first lamp beads;

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

[0029] On the other hand, an embodiment of the present application provides a display device, including:

[0030] A rear housing assembly, which is the rear housing assembly described in any of the above; and,

[0031] A display panel, which is mounted on the rear housing assembly.

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

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

[0034] In the embodiment of the present application, by directly mounting the lamp board on the rear housing, it is no longer necessary for the backplane to carry the lamp board, and the backplane of the existing display device can be omitted. During the actual assembly of the display device, it is only necessary to first mount the lamp board on the rear housing, and then assemble the display panel and the optical film on the rear housing to complete the assembly of the entire display device. The assembly process and product structure are simple, and the production and manufacturing cost is low. Description of the Drawings

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0036] Figure 1 is a side view of a display device provided by some embodiments of the present application;

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

[0038] Figure 3 is Figure 2 the partial enlarged view in;

[0039] Figure 4 is Figure 2 the three-dimensional structure schematic diagram of the lamp board in;

[0040] Figure 5 is Figure 4 the three-dimensional structure schematic diagram of the lamp board from another perspective in;

[0041] Figure 6 is Figure 1Schematic diagram of the three-dimensional structure of the rear shell in

[0042] Description of main component symbols:

[0043] Label Name Label Name 100 Display device 10 Rear shell 20 Lamp board 11 Installation area 12 Reflection area 13 Installation cavity 14 Functional module 15 Reflective rib 151 Reflection end 152 Light-transmitting groove 153 First reflective rib 154 Second reflective rib 16 Heat dissipation hole 30 Display panel 22 Lens 23 First lamp bead 24 Second lamp bead 25 Third lamp bead 26 Optical film 17 Reflection cavity Specific implementation manners

[0044] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying 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 those skilled in the art without creative efforts shall fall within the protection scope of the present application.

[0045] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "center", "vertical", "horizontal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more, unless otherwise specifically defined.

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

[0047] The use of "suitable for" or "configured to" in the present application means open and inclusive language, which does not exclude devices suitable for or configured to perform additional tasks or steps. In addition, the use of "based on" means open and inclusive, because a process, step, calculation, or other action "based on" one or more of the described conditions or values may, in practice, be based on additional conditions or values beyond the described ones.

[0048] In this application, the term "exemplary" is used to mean "serving as an example, illustration, or demonstration". Any embodiment described as "exemplary" in this application is not necessarily to be construed as 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. In the following description, details are set forth for the purpose of explanation. It should be understood that those of ordinary skill in the art can recognize that this application can be implemented without the use of these specific details. In other instances, well-known structures and processes are not elaborated in detail to avoid obscuring the description of this application with unnecessary details. Therefore, this application is not intended to be limited to the embodiments shown, but rather to be in line with the broadest scope consistent with the principles and features disclosed in this application.

[0049] For current display panels, components such as light bars, main boards, power supplies, and movement mechanisms are generally installed on the backplane, and a housing is provided outside the backplane to cover the backplane. Therefore, the structure of existing display devices is complex, the assembly difficulty is high, and the production and manufacturing cost is high.

[0050] Please refer to Figures 1 to 6 , in this regard, an embodiment of this application provides a rear housing assembly, including a rear housing 10 and a light board 20; the light board 20 is installed on the rear housing 10.

[0051] It should be noted that the installation method of the light board 20 installed on the rear housing 10 is not limited, and forms such as bonding, snap connection, screw connection, etc. can be adopted, which are not defined here. The specific implementation form of the light board 20 is not limited. It can be assembled and formed by multiple light bars, or a number of light beads can be directly provided on a pcb board without using light bar splicing, etc., which are not defined here. The rear housing assembly can also include functional modules 14 such as a power supply, a movement mechanism, and a main board. Of course, it can also only include the rear housing 10 and the light board 20, which are not defined here.

[0052] In an embodiment of this application, by directly installing the light board 20 on the rear housing 10, it is no longer necessary for the backplane to carry the light board 20, and the backplane in the existing display device can be omitted. During the actual assembly process of the display device 100, it is only necessary to first install the light board 20 on the rear housing 10, and then assemble the display panel 30 and the optical film 26 onto the rear housing 10 to complete the assembly of the entire display device 100. The assembly process and product structure are simple, and the production and manufacturing cost is low.

[0053] Furthermore, the material of the rear housing 10 is not limited. It can be made of a metal material or a plastic material, etc., which are not defined here.

[0054] In some embodiments, the rear case 10 is a plastic part. Correspondingly, since the rear case 10 is a plastic part, during the production and manufacturing process, the rear case 10 can be injection molded. After molding, the lamp board 20 can be directly installed on the rear case 10 to complete the assembly of the entire rear case assembly. The entire assembly process has a low difficulty, and being made of plastic material can effectively reduce the material cost of the rear case assembly.

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

[0056] Specifically, please refer with emphasis to Figure 6 , in some embodiments, the rear case 10 includes an installation area 11 for installing the lamp board 20 and a reflection area 12 surrounding the outside of the installation area 11; wherein, a reflection structure is provided at the part of the rear case 10 located in the reflection area 12, and the reflection structure is used to reflect the light emitted by the lamp board 20.

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

[0058] It should be noted that the specific implementation form of the reflection structure is not limited. It can be a reflection layer deposited on the rear case 10, or a reflection rib protruding on the rear case 10 to achieve diffuse reflection of light through the reflection rib, thereby improving the uniformity of the light output of the display device 100. It can also be directly made of a plastic material with good reflection performance for the rear case 10, etc., which is not limited here.

[0059] In addition, it should be emphasized that since the reflection structure is provided on the rear case 10, when assembling the display device 100, the reflection sheet in the existing display device can also be omitted, further reducing the material cost of the display device 100.

[0060] Furthermore, it should be noted that for the display device 100, generally two PCB boards are required, one as the lamp board 20 and the other as the main board. Function modules 14 such as a core and a power supply can be installed on the main board. Specifically, the lamp board 20 and the main board can be respectively installed on the rear case 10, or the lamp board 20 and the main board can be integrated, which is not limited here. Please refer with emphasis to Figures 2 to 6, in some embodiments, the part of the rear shell 10 located in the installation area 11 is recessed to form an installation cavity 13, the lamp board 20 covers the installation cavity 13, and a functional module 14 is arranged on the side of the lamp board 20 facing the installation cavity 13, and lamp beads are arranged on the side of the lamp board 20 facing away from the installation cavity 13.

[0061] Correspondingly, in the technical solution of this embodiment, by arranging the functional module 14 on the lamp board 20, the lamp board 20 can simultaneously serve as the main board of a traditional TV, eliminating the need for a separate main board, thus saving the material cost of the PCB board. During actual installation, there is no need to install the main board and the lamp board 20 separately, but 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 lamp beads are arranged on both sides of the lamp board 20 in the thickness direction, and the functional module 14 does not block the light emitted by the lamp beads, avoiding the occurrence of the black shadow phenomenon.

[0062] It should be emphasized that since in the embodiments of the present application, the existing backplane of the display device 100 is cancelled, and at this time, the functional module 14 and the lamp board 20 originally on the main board are assembled on the rear shell 10 at the same time, the functional module 14 originally on the main board is likely to block the light emitted by the lamp board 20, thereby affecting the light emission uniformity of the display device 100.

[0063] In the present application, the installation cavity 13 is formed by corresponding recesses, and the functional module 14 such as power supply, movement, and storage chip is installed in the installation cavity 13, while the lamp beads are located outside the installation cavity 13, which can effectively prevent the light emitted by the lamp beads from entering the installation cavity 13, resulting in light leakage.

[0064] The specific implementation form of the functional module 14 is not limited, and it may include a power supply, a movement, a storage chip, etc., which are not limited herein.

[0065] Furthermore, the reflection area 12 of the rear shell 10 defines a reflection cavity 17 with an open end, and the lamp board 20 is installed at the bottom of the reflection cavity 17 to separate the reflection cavity 17 and the installation cavity 13, and the open end of the reflection cavity 17 is for installing the display panel 30.

[0066] Correspondingly, 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 board 20 can be reflected multiple times in the reflection cavity 17, thereby improving the light emission uniformity.

[0067] Moreover, the lamp board 20 is installed at the bottom of the reflection cavity 17 to space the reflection cavity 17 and the installation cavity 13, thereby isolating the reflection cavity 17 and the installation cavity 13. On the one hand, it can prevent the dust in the installation cavity 13 from entering the reflection cavity 17 and affecting the reflection of the light. On the other hand, it can also prevent the light in the reflection cavity 17 from entering the installation cavity 13, resulting in light leakage.

[0068] It should be noted that the specific manner in which the lamp board 20 spaces the reflection cavity 17 and the installation cavity 13 is not limited. It can be directly installing the lamp board 20 between the reflection cavity 17 and the installation cavity 13, so that the side of the lamp board 20 with lamp beads forms the bottom of the reflection cavity 17, and the side of the lamp board 20 with the functional module 14 forms the top of the installation cavity 13. In addition, in some embodiments, in order to improve the isolation effect, a sealing glue can also be applied around the circumference of the lamp board 20 during installation, thereby further enhancing the isolation effect between the reflection cavity 17 and the installation cavity 13.

[0069] The open end of the reflection cavity 17 is used for installing the display panel 30. Specifically, at the open end of the reflection cavity 17, in addition to installing the display panel 30, the optical film 26 can also be installed. Of course, in some embodiments, the display device 100 does not have an optical film 26, such as a brightness enhancement film, a reflective sheet, etc. At this time, only the display panel 30 is provided at the open end of the reflection cavity 17.

[0070] In addition, in order to enhance the light emission uniformity of the display device 100, the reflection structure includes a reflective rib 15 protruding from the reflection area 12. Correspondingly, in the solution of this embodiment, by providing the reflective rib 15, the light emitted by the lamp board 20 can be reflected. When there are multiple reflective ribs 15, the light can be reflected back and forth multiple times, thereby performing diffuse reflection in the reflection cavity 17, greatly improving the light emission uniformity. Moreover, it should be emphasized that since the rear shell 10 is made of plastic material in some embodiments, compared with the metal material, the rear shell 10 made of plastic material has lower strength. And when assembling the display device 100, since the display device 100 also cancels the metal backplane, the overall strength of the display device 100 will be lower than that of the existing ones. At this time, by providing the reflective rib 15, the strength of the rear shell 10 can also be enhanced, thereby enhancing the overall strength of the display device 100, so that the display device 100 can maintain a relatively large strength even without a backplane.

[0071] Moreover, by providing the reflective ribs 15, the light emitted by the light board 20 can be diffusely reflected in the reflection cavity 17, so that the uniformity of the light emitted by the reflection cavity 17 is already good enough. Furthermore, the reflective sheet in the existing display device can also be omitted, 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 ribs 15 is not limited. It can be strip-shaped, triangular, etc., and is not limited here.

[0073] Furthermore, in an embodiment, the reflective ribs 15 are arranged in a ring shape.

[0074] Corresponding to the technical solution of this embodiment, by arranging the reflective ribs 15 in a ring shape, the reflective ribs 15 surround and form a complete circle in the circumferential direction of the light board 20, reflecting the light emitted by the light board 20 360 degrees, and further improving the reflection effect.

[0075] The number of the reflective ribs 15 is not limited. It can be one or multiple, and is not limited here. In some embodiments, multiple reflective ribs 15 are provided. In the radial direction of the light board 20, the multiple reflective ribs 15 are arranged at intervals. That is, in this embodiment, multiple circles of the reflective ribs 15 are provided in a ring shape on the outer side of the light board 20, so that the light can be reflected back and forth between the multiple circles of the reflective ribs 15, further improving the light emission uniformity.

[0076] It should be noted that since the reflective ribs 15 are provided, the number of light rays reaching the edge of the reflection cavity 17 will inevitably be reduced, and the diffusion distance of some light rays emitted by the light board 20 will also be blocked. Therefore, in order to let more light rays diffuse to the edge of the rear shell 10 and increase the diffusion distance and range of the light rays, in some embodiments, the reflective ribs 15 have a connection end connected to the rear shell 10 and a reflection end 151 opposite to the connection end, and a light transmission groove 152 is provided on the reflection end 151.

[0077] Corresponding to the solution of this embodiment, by providing the light transmission groove 152 on the reflective end of the reflective rib, some light rays emitted by the light board 20 can pass through the reflective rib from the light transmission groove 152, so that more light rays can reach the edge of the rear shell 10, improving the light emission uniformity.

[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 defined here. The size of the light-transmitting groove 152 is also not limited, and in actual use, it can be set according to actual needs.

[0079] When there are multiple reflective ribs 15, some of the reflective ribs 15 may be provided with the light-transmitting grooves 152, or all of the reflective ribs 15 may be provided with the light-transmitting grooves 152, which is not defined here.

[0080] In a further embodiment, each of the reflective ribs 15 is provided with a light-transmitting groove 152, and at least a part of the light-transmitting grooves 152 of two adjacent reflective ribs 15 are arranged in alignment. In this way, at least part of the light emitted by the lamp board 20 can directly pass through the multiple reflective ribs in sequence through the multiple light-transmitting grooves arranged in alignment, increasing the light transmission distance and allowing more light to reach the edge of the rear shell 10, improving the uniformity of light output.

[0081] Of course, for a single reflective rib 15, it may be provided with only one light-transmitting groove 152, or it may be provided with multiple light-transmitting grooves, which is not defined here. In an embodiment, a plurality of light-transmitting grooves 152 are arranged along the circumference of the lamp board 20, so as to increase the amount of light reaching the edge of the rear shell 10 by providing a plurality of light-transmitting grooves 152, further improving the uniformity of light output.

[0082] Specifically, the number of the multiple light-transmitting grooves 152 can be two, three, four, etc., which is not defined here and can be flexibly set according to requirements.

[0083] Moreover, in some embodiments, at least a part of the light-transmitting grooves 152 are arranged in alignment with the lamp beads. In this way, at least part of the light emitted by the lamp beads can directly pass through the reflective rib 15 from the light-transmitting groove 152 in alignment therewith without being reflected by the reflective rib 15. And part of the light reflected by the reflective rib 15 will also pass through the reflective rib 15 from the light-transmitting groove 152, thereby increasing the light transmission distance and improving the uniformity of light output.

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

[0085] For multiple of the reflective ribs 15, their reflection ends 151 can be arranged flush, or at different heights, which is not limited herein. Among two adjacent reflective ribs 15 in the radial direction of the lamp board 20, it includes a first reflective rib 153 close to the lamp board 20 and a second reflective rib 154 far from the lamp board 20; in the depth direction of the installation cavity 13, the reflection section of the first reflective rib 153 protrudes from the reflection end 151 of the second reflective rib 154.

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

[0087] Furthermore, the specific implementation form of the functional module 14 is not limited, and it can include a power supply, a movement, a storage chip, etc., which is not limited herein.

[0088] In one embodiment, the functional module 14 includes one or more of a power supply module, a movement, and a storage chip. Corresponding to this embodiment, one or more of the power supply module, the movement, and the storage chip are installed on the lamp board 20, so that the functional module 14 on the existing main board can be directly installed on the lamp board 20, the main board can be cancelled, the material cost of the PCB board can be saved, and the installation process of the main board can also be reduced.

[0089] At this time, since the functional module 14 and the lamp beads are both installed on the lamp board 20, the heat of the lamp board 20 will be 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 communicating with the installation cavity 13, and at least part of the heat dissipation holes 16 are arranged in alignment.

[0090] Corresponding to the solution of this embodiment, by setting part of the heat dissipation holes 16 in alignment, the heat dissipation air flow flowing into one of the heat dissipation holes 16 can quickly flow out from the heat dissipation hole 16 in alignment with it, thereby increasing the flow rate of the air flow, enhancing the heat dissipation ability, and the air flow in the installation cavity 13 can also quickly dissipate heat from the lamp board 20. Compared with the traditional display device 100, the distance between the lamp beads and the heat dissipation air flow is closer, and the heat dissipation effect is better.

[0091] It should be emphasized that the depth of the installation 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 light board 20 where the functional module 14 is installed and the bottom of the installation cavity 13 is 10-35 mm.

[0092] It should be noted that the thickness or height of functional modules 14 such as the power module, the movement, and the storage chip is generally between 8 and 17 mm. By setting the distance between the side of the light board 20 where the functional module 14 is installed and the bottom of the installation cavity 13 to be 10-35 mm, there will be a gap of 2-18 mm between the functional module 14 and the bottom of the installation cavity 13, thereby effectively improving the heat dissipation effect and not making the maximum thickness of the display device 100 too thick, which affects the user's perception.

[0093] The lens 22 of the lamp bead can be arranged parallel to the light board 20 or can be arranged obliquely, which is not limited herein. In an embodiment, a lamp bead installation area 11 is formed on the light board 20, and for the lamp beads located at the edge position of the lamp bead installation area 11, their lenses 22 are arranged obliquely outward from the light board 20.

[0094] It should be explained that lamp beads generally have a light-emitting chip and a lens 22 covering the light-emitting chip. By setting the lens 22, the diffusion range of the light emitted by the light-emitting chip is larger and the brightness is more uniform. For the lamp beads at non-edge positions, their lenses 22 can be arranged obliquely or can be arranged parallel to the light board 20, which is not limited herein.

[0095] Corresponding to the solution in this embodiment, by setting the lenses 22 of the lamp beads at the edge positions to be obliquely outward, the light of the lamp beads at the edge positions can be sent farther, thereby increasing the light delivery distance of the light board 20 and enhancing the brightness at the edge of the rear shell 10.

[0096] When the inclination angle of the lens 22 is too large, part of the light will be refracted or reflected when passing through the lens 22, resulting in the light deviating from the expected propagation direction and being unable to be effectively utilized. This light loss will directly reduce the overall light output efficiency of the LED. One of the functions of the lens 22 is to converge the scattered light emitted by the LED into a more concentrated light beam, thereby improving the light intensity and uniformity. However, if the inclination angle is too large, the lens 22 cannot effectively converge the light, resulting in a decrease in the light output efficiency. Therefore, in a further embodiment, for the lens 22 arranged obliquely, its inclination angle is a, 0° < a < 10°. Corresponding to this embodiment, by setting the inclination angle to be less than 10°, it can effectively ensure the reduction of light loss and the improvement of the convergence efficiency.

[0097] Specifically, the inclination angle of the lens 22 refers to that the light-emitting surface of the lens 22 is inclined with respect to the lamp board 20, and the inclination angle refers to the included angle between the light-emitting surface of the lens 22 and the lamp board 20.

[0098] It should be noted that for the lamp beads arranged in an inclined manner, the inclination angles of the lenses 22 thereof can be the same, such as all being 1°, or 2°, etc., or they can be different, which is not limited herein.

[0099] In some embodiments, the multiple lamp beads in the lamp bead mounting area 11 are arranged in an array. Taking the length direction of the lamp board 20 as the horizontal direction and the width direction of the lamp board 20 as the vertical direction, the multiple lamp beads include a first lamp bead 23, a second lamp bead 24, and a third lamp bead 25 located at the edge of the array; the first lamp bead 23 is located at the intersection of the horizontal side and the vertical side of the array, the second lamp bead 24 is located on the horizontal side of the array and between adjacent first lamp beads 23, and the third lamp bead 25 is located on the vertical side of the array and between adjacent first lamp beads 23; the inclination angle of the first lamp bead 23 is b, the inclination angle of the second lamp bead 24 is c, and the inclination angle of the third lamp bead 25 is d, where b > d > c.

[0100] It should be explained that the array arrangement means that the arrangement mode of the multiple lamp beads is horizontal and vertical, and the spacing between the lamp beads in the horizontal and vertical directions can be equal or unequal. The number of lamp beads in each row in the horizontal direction and the number of lamp beads in each row in the vertical direction can be equal or unequal, which is not limited herein. And the larger the inclination angle of the lens 22, naturally, the longer the light transmission distance.

[0101] For existing display devices, their general length is larger than their width, that is, the distance between the lamp board 20 and the edge of the rear case 10 in the horizontal direction is larger. Correspondingly, at this time, the inclination angle of the lamp beads located on the vertical side is made larger than that of the lamp beads located on the horizontal side, so that more light can be directed to the edge of the rear case 10 in the horizontal direction. And the inclination angle of the first lamp bead 23 located at the corner is set to be the largest, so that more light of the first lamp bead 23 can be transmitted to the corner of the rear case 10.

[0102] Corresponding to the solution in this embodiment, by adjusting the inclination angle of the lens 22 of the lamp bead according to the distance between the lamp bead and the corner of the rear case 10, the light emission uniformity of the reflection cavity 17 can be further improved.

[0103] The present invention also provides a display device 100, which includes a display panel 30 and a rear case assembly. For the specific structure of the rear case assembly, reference may be made to the above embodiments. Since the display device 100 adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated one by one here.

[0104] It should be noted that, correspondingly, in the display device 100 of this embodiment, components such as a middle frame and a reflector may also be included. Thus, the middle frame is installed on the rear case 10, and the display panel 30 is installed on the middle frame, so that the display panel 30 is indirectly installed on the rear case assembly. Of course, in some embodiments, in order to reduce costs, the display panel 30 may also be directly installed on the rear case assembly, thus omitting the middle frame and reducing material costs and installation procedures.

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

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

[0107] In a further embodiment, the optical film 26 includes a reflective polarizer, which can reflect a part of the incident light. After some diffuse reflection by the reflection structure inside the reflection cavity 17, it returns to the light incident surface of the display panel 30, thereby improving the light emission uniformity.

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

[0109] The above has introduced the rear case assembly and the display device provided by the embodiments of the present application in detail. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application; at the same time, for those skilled in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. A rear shell assembly, characterized in that, Comprising: Rear shell; And, Lamp board, which is installed on the rear shell.

2. The rear housing assembly according to claim 1, wherein The rear shell is a plastic part.

3. The rear housing assembly according to claim 1, wherein The rear shell includes an installation area for installing the lamp board and a reflection area surrounding the outside of the installation area; Wherein, a reflection structure is provided at the part of the rear shell located in the reflection area, and the reflection structure is used to reflect the light emitted by the lamp board.

4. The rear housing assembly according to claim 3, wherein The part of the rear shell located in the installation area is recessed to form an installation cavity, the lamp board covers the installation cavity, and a functional module is provided on the side of the lamp board facing the installation cavity, and a plurality of lamp beads are provided on the side of the lamp board facing away from the installation cavity.

5. The rear housing assembly according to claim 4, characterized in that, The reflection area of the rear shell defines a reflection cavity with an open end, and the lamp board is installed at the bottom of the reflection cavity to separate the reflection cavity and the installation cavity, and the open end of the reflection cavity is used for installing the display panel.

6. The rear housing assembly according to claim 4, wherein, The reflection structure includes a light reflecting rib protruding from the reflection area.

7. The rear housing assembly according to claim 6, characterized in that, The light reflecting rib is arranged in a ring shape.

8. The rear housing assembly according to claim 6 or 7, characterized in that, A plurality of the light reflecting ribs are provided, and in the radial direction of the lamp board, the plurality of light reflecting ribs are arranged at intervals.

9. The rear shell assembly according to claim 8, wherein, The light reflecting rib has a connection end connected to the rear shell and a reflection end opposite to the connection end, and a light transmission groove is formed on the reflection end.

10. The rear housing assembly according to claim 9, characterized in that, At least part of the light transmission grooves of two adjacent light reflecting ribs are arranged in alignment; and / or, A plurality of the light transmission grooves are formed along the circumference of the lamp board; and / or, At least part of the light transmission grooves are arranged in alignment with the lamp beads; and / or, Among two adjacent light reflecting ribs in the radial direction of the lamp board, it includes a first light reflecting rib close to the lamp board and a second light reflecting rib far from the lamp board; In the depth direction of the installation cavity, the reflection section of the first light reflecting rib protrudes from the reflection end of the second light reflecting rib.

11. The rear housing assembly according to claim 4, characterized in that, The functional module includes one or more of a power module, a movement, and a storage chip.

12. The rear housing assembly according to claim 4, characterized in that, The rear shell is provided with a plurality of heat dissipation holes communicating with the installation cavity, and at least part of the heat dissipation holes are arranged in alignment; and / or, The distance between the side of the lamp board with the functional module and the bottom of the installation cavity is 10-35 mm.

13. The rear housing assembly according to claim 4, wherein, A lamp bead installation area is formed on the lamp board, and for the lamp beads located at the edge position of the lamp bead installation area, their lenses are inclined outward from the lamp board.

14. The rear housing assembly according to claim 13, wherein For the inclined lens, the inclination angle is a, 0° < a < 10°; and / or, The plurality of lamp beads in the lamp bead installation area are arranged in an array. Taking 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 lamp beads include a first lamp bead, a second lamp bead, and a third lamp bead located at the edge of the array; The first lamp bead is located at the intersection of the horizontal side and the vertical side of the array, the second lamp bead is located on the horizontal side of the array and between adjacent first lamp beads, and the third lamp bead is located on the vertical side of the array and between adjacent first lamp beads; The inclination angle of the first lamp bead is b, the inclination angle of the second lamp bead is c, and the inclination angle of the third lamp bead is d, wherein, b > d > c.

15. A display device, characterized in that, Comprising: Rear shell assembly, the rear shell assembly according to any one of claims 1 to 14; And, Display panel, installed on the rear shell assembly.

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