Display screen and light-emitting device thereof

Abstract

Embodiments of the present application provide a display screen and a light-emitting device thereof. The light-emitting device comprises a mask and a lamp panel; the mask comprises a top plate and side plates connected around the periphery of the top plate and extending towards the same side of the top plate; the lamp panel comprises a PCB provided in the side plate and a plurality of LED lamp beads arranged in an array on the surface of the PCB facing the top plate; a hole-shaped structure comprising a plurality of blind holes is provided on the surface of the top plate facing the PCB; and an opening of each blind hole faces the PCB and is used for accommodating one LED lamp bead. In the embodiments of the present application, a hole-shaped structure is provided in a mask, a plurality of blind holes of the hole-shaped structure are enabled to be in one-to-one correspondence with a plurality of LED lamp beads arranged on a PCB, and the plurality of blind holes cover the plurality of LED lamp beads, so that light emitted from the top of the mask is more uniform, and an obvious bright and dark boundary at the junction of two adjacent masks is avoided, thereby effectively improving the display effect of the light-emitting device.

Description

Display screen and light-emitting device thereof

[0001] Cross-references

[0002] This application refers to Chinese Patent Application No. 2024201970697, filed on January 26, 2024, entitled “Display screen and light-emitting device thereof”, which is incorporated into this application in its entirety by reference. Technical Field

[0003] The present application relates to the field of LED display technology, and in particular to a display screen and a light-emitting device thereof. Background Art

[0004] With the development of LED display technology, LED screens are widely used in interior decoration. Currently, the light-emitting module of LED screens used for interior decoration typically consists of an LED light source panel and a mask mounted above it. The mask is generally a transparent, grooved shell that can be used singly or in multiples. However, when multiple masks are used together, a distinct light-dark boundary appears at the junction of two adjacent shells due to light refraction, affecting the display effect.

[0005] Utility Model Content

[0006] In view of the above problems, the embodiments of the present application are proposed to provide a display screen and a light-emitting device thereof that solve the above problems or at least partially solve the above problems.

[0007] In a first aspect, an embodiment of the present application provides a light-emitting device, comprising:

[0008] The mask comprises a top plate and side plates connected to the periphery of the top plate and extending to the same side of the top plate;

[0009] a light board, comprising a PCB board disposed within the side board and a plurality of LED lamp beads arranged in an array on a side of the PCB board facing the top board;

[0010] Wherein, a hole structure including a plurality of blind holes is provided on a side of the top plate facing the PCB board, and an opening of each blind hole faces the PCB board and is used to accommodate one of the LED lamp beads.

[0011] Furthermore, the hole-shaped structure includes a plurality of transverse partitions and a plurality of longitudinal partitions provided on a side of the top plate facing the PCB board;

[0012] The plurality of transverse partitions and the plurality of longitudinal partitions are arranged at equal intervals and staggered with each other to form the plurality of blind holes.

[0013] Furthermore, the thicknesses of the plurality of transverse partitions and the plurality of longitudinal partitions are equal and are 1.4-5 times the thickness of the side plates.

[0014] Furthermore, the depth of the blind hole is 5-15 mm.

[0015] Furthermore, the bottom of the blind hole is a concave arc surface facing the LED lamp bead.

[0016] Furthermore, the light emitting device further comprises:

[0017] A plurality of support columns, one end of each of the support columns is connected to a side of the PCB board facing the hole structure, and the other end extends toward the hole structure and contacts the intersection of the transverse partition and the longitudinal partition.

[0018] Furthermore, the diameter of the support column gradually decreases from an end close to the PCB board to an end far away from the PCB board.

[0019] Furthermore, the light emitting device further comprises a bottom shell, which is detachably connected to the side panel, and a side of the PCB board facing away from the hole-shaped structure is detachably connected to a side of the bottom shell facing the hole-shaped structure.

[0020] In a second aspect, an embodiment of the present application further provides a display screen, comprising:

[0021] frame;

[0022] A plurality of light-emitting devices as described in any one of the first aspects above, wherein the side panels of the plurality of light-emitting devices are detachably connected to the frame.

[0023] Furthermore, the display screen further includes:

[0024] A connector, one end of which extends into the frame and is connected thereto, and the other end of which is placed outside the frame and is used to be connected to another frame.

[0025] In the technical solution provided in the embodiment of the present application, the mask of the light-emitting device includes a top plate and a side plate connected to the outer periphery of the top plate and extending on the same side of the top plate; the light board of the light-emitting device includes a PCB board arranged in the side plate and a plurality of LED lamp beads arranged in an array on the side of the PCB board facing the top plate; wherein, the top plate is provided with a hole-like structure including a plurality of blind holes on the side facing the PCB board, and the opening of each blind hole faces the PCB board and is used to accommodate one of the LED lamp beads. By arranging the hole-like structure in the mask and making the plurality of blind holes of the hole-like structure correspond one-to-one to the plurality of LED lamp beads on the PCB board and covering them, the light emitted from the top of the mask is more uniform, avoiding the appearance of an obvious light and dark dividing line at the junction of two adjacent masks, and effectively improving the display effect of the light-emitting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained like these drawings without paying any creative work.

[0027] FIG1 is an exploded perspective view of a three-dimensional structure of a light emitting device provided by an embodiment of the present invention;

[0028] FIG2 is an enlarged structural diagram of a portion A of a mask of a light-emitting device provided by an embodiment of the present invention;

[0029] FIG3 is another exploded perspective view of a light emitting device provided by an embodiment of the present invention;

[0030] FIG4 is another exploded perspective view of a light emitting device provided by an embodiment of the present invention;

[0031] FIG5 is a schematic diagram of a three-dimensional structure of a light emitting device provided by an embodiment of the present invention;

[0032] FIG6 is a schematic diagram of a three-dimensional structure of a display screen provided by an embodiment of the present invention;

[0033] FIG7 is a schematic diagram of a side structure of a display screen provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0034] To make the purpose, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of them. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the embodiments of the present application.

[0035] It should be noted that, in the description of this application, if the terms "first", "second", etc. appear, "first" and "second" are only used to facilitate the description of different components or names, and cannot be understood as indicating or implying a sequential relationship, relative importance, or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" appears in the full text, its meaning is to include three parallel solutions. Taking "A and / or B as an example", it includes Solution A, or Solution B, or a solution that satisfies both A and B.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application.

[0037] Please refer to FIG. 1 , which is a schematic exploded view of a three-dimensional structure of a light emitting device provided by an embodiment of the present invention. The light emitting device includes a mask 10 and a light board 20 .

[0038] Please refer to Figure 2. The mask 10 includes a top plate 110 and a side plate 120 that is connected to the outer periphery of the top plate 110 and extends on the same side of the top plate 110; the light board 20 includes a PCB board 210 arranged in the side plate 120 and a plurality of LED lamp beads (not shown in the figure) arranged in an array on the side of the PCB board 210 facing the top plate 110; wherein, the top plate 110 is provided with a hole structure 130 including a plurality of blind holes 1301 on the side facing the PCB board 210, and the opening of each blind hole 1301 faces the PCB board 210 and is used to accommodate one of the LED lamp beads.

[0039] Specifically, the mask 10 is an integrally formed groove-shaped structure, and the side panel 120 is arranged around the outer periphery of the edge of the top panel 110. One end of the side panel 120 is connected to the top panel 110, and the other end extends one end distance toward the same side of the top panel 110, thereby forming a groove-shaped structure; the light board 20 is arranged in the side panel 120 below the top panel 110, and the light board 20 can be directly connected to the bottom of the top panel 110 or on the inner wall of the side panel 120, or it can be indirectly in the side panel 120 through other connecting parts. The multiple LED lamp beads are arranged in an array on the side of the PCB board 210 facing the top panel 110, and the LED lamp beads can emit light toward the surface of the top panel 110 or toward the surface of the side panel 120. When the plurality of LED lamp beads are lit, a light-emitting surface 220 facing the top plate 110 is formed on the PCB board 210, so that the light irradiated on the top plate 110 can at least partially pass through the mask 10, so that the mask 10 forms a light-emitting member, that is, the light-emitting device. In an embodiment of the present invention, the surface of the top plate 110 facing the light-emitting surface 220, that is, the inner surface of the top plate 110, is provided with the hole structure 130, and the hole structure 130 includes a plurality of blind holes 1301. The blind hole 1301 here refers to the outer surface of the top plate 110 which is closed at one end, and the other end of the blind hole 1301 is open and faces the PCB board 210. The mask 10 is generally formed by integral injection molding in a mold, that is, the hole structure 130, the top plate 110 and the side plate 120 are integrally connected; the number of the plurality of blind holes 1301 is generally consistent with the number of the plurality of LED lamp beads, and the two are one-to-one corresponding. Here, the plurality of LED lamp beads are generally protruding from the surface of the PCB board 210, and the plurality of blind holes 1301 cover the plurality of LED lamp beads one by one, thereby forming a cover on the L The lens above the ED lamp bead, since the size, depth and wall thickness of the multiple blind holes 1301 of the hole-like structure 130 are the same, the light passing through the hole-like structure 130 and the outer surface of the top plate 110 will become very uniform, especially when multiple masks 10 are spliced ​​together for use, the two adjacent side panels 120 need to be fitted and connected to each other, and the structure after fitting and connection can be regarded as the hole wall of the blind hole 1301, so that the light at the edge position of the top plate 110 will have the same transmission path as in the middle position, making the light more evenly refracted at this position to avoid the appearance of obvious light and dark dividing lines, thereby effectively improving the display effect of the light-emitting device.

[0040] Furthermore, in other preferred embodiments of the present invention, the hole structure 130 includes a plurality of transverse partitions 1302 and a plurality of longitudinal partitions 1303 provided on a side of the top plate 110 facing the PCB board 210;

[0041] The plurality of transverse partitions 1302 and the plurality of longitudinal partitions 1303 are arranged at equal intervals and staggered with each other to form the plurality of blind holes 1301 .

[0042] Specifically, a plurality of transverse partitions 1302 are arranged at equal intervals in a first direction on the side of the top plate 110 facing the PCB board 210, and a plurality of longitudinal partitions 1303 are arranged at equal intervals in a second direction on the side of the top plate 110 facing the PCB board 210. The first direction and the second direction are perpendicular to each other. The transverse partitions 1302 and the longitudinal partitions 1303 are arranged in an alternating manner, so that the blind holes 1301 are formed between two adjacent transverse partitions 1302 and the longitudinal partitions 1303. Since the plurality of transverse partitions 1302 and the plurality of longitudinal partitions 1303 are arranged in an alternating manner, the plurality of blind holes 1301 are formed on the side of the top plate 110 facing the PCB board 210.

[0043] Furthermore, the thicknesses of the plurality of transverse partitions 1302 and the plurality of longitudinal partitions 1303 are equal and are 1.4-5 times the thickness of the side panels 120 .

[0044] Here, since the thicknesses of the multiple transverse partitions 1302 and the multiple longitudinal partitions 1303 are equal, the hole wall thicknesses of each blind hole 1301 are equal, and thus the LED lamp beads in each blind hole 1301 have the same transmission path. Such a design will make the light emission on the surface of the top plate 110 more uniform; in addition, the thicknesses of the multiple transverse partitions 1302 and the multiple longitudinal partitions 1303 are 1.4-5 times the thickness of the side plate 120, that is, the thickness of the side plate 120 is 20%-70% of the thickness of the partition (the transverse partitions 1302 and the longitudinal partitions 1303). In a preferred embodiment, The thickness of the side panel 120 is 50% of the thickness of the partition (the transverse partition 1302 and the longitudinal partition 1303). With this design, when multiple masks 10 are spliced ​​together for use, the two adjacent side panels 120 need to be fitted and connected to each other, and the sum of the thicknesses of the two side panels 120 will be closer to the thickness of a partition (the transverse partition 1302 and the longitudinal partition 1303). In this way, the light at the edge position of the top plate 110 will have the same transmission path as at the middle position, so that the light is refracted more evenly at this position, avoiding the appearance of obvious light and dark dividing lines at its edge position, thereby effectively improving the display effect of the light-emitting device.

[0045] In addition, in order to ensure that the surface of the top plate 110 has a more appropriate light and dark effect and that the LED lamp beads can be accommodated in the blind holes 1301, the depth of the blind holes 1301 should be neither too deep nor too shallow, preferably 5-15 mm.

[0046] Furthermore, in order to make the porous structure 130 have a better light transmission effect, that is, to make the surface of the top plate 110 have a more suitable light and dark effect, the inner wall of each blind hole 1301 needs to be frosted, that is, a frosted layer is provided on the inner wall of the blind hole 1301.

[0047] In addition, the bottom of the blind hole 1301 is a concave arc surface facing the LED lamp bead. The LED lamp bead is covered by the blind hole 1301 with such a shape structure, which can effectively diverge the light emitted by the LED lamp bead, thereby making the light emitted from the surface of the top plate 110 more uniform, further improving the display effect of the light-emitting device.

[0048] Here, it should be noted that the shape of the blind hole 1301 can be designed to be any of circular, square or polygonal according to the parameters of the LED lamp bead and the specific usage scenario of the light-emitting device.

[0049] In addition, please refer to Figures 3-5. In other preferred embodiments of the present utility model, the lamp board 20 also includes a plurality of support columns 230, one end of the plurality of support columns 230 is connected to the side of the PCB board 210 facing the hole structure 130, and the other end extends toward the hole structure 130 and contacts the intersection of the transverse partition 1302 and the longitudinal partition 1303.

[0050] Specifically, the multiple support columns 230 are protruding from the PCB board 210, and the tops of the multiple support columns 230 are against the intersection of the transverse partition 1302 and the longitudinal partition 1303. Such a design can make the spacing between the PCB board 210 and the porous structure 130 the same at all locations by setting multiple support columns 230, thereby avoiding deflection deformation or deformation after long-term use in the middle of the top plate 110, thereby ensuring a more uniform brightness effect.

[0051] Furthermore, the light board 20 also includes a bottom shell 240, which is detachably connected to the side panel 120, and the side of the PCB board 210 facing away from the hole structure 130 is detachably connected to the side of the bottom shell 240 facing the hole structure 130.

[0052] Specifically, the PCB board 210 and the bottom shell 240 are distributed in a stacked structure, and the two are connected by a detachable connection method, specifically including but not limited to screws or bonding. The side of the PCB board 210 facing away from the bottom shell 240, that is, facing the hole structure 130, is the light-emitting surface 220. The bottom shell 240 is detachably connected to the side panel 120 through a snap structure or other detachable connection structure to facilitate the disassembly, maintenance and replacement of the lamp board 20.

[0053] In addition, in other preferred embodiments of the present invention, the support column 230 can also be protrudingly arranged on the side of the bottom shell 240 facing the PCB board 210, and a plurality of positioning through-holes are correspondingly arranged on the PCB board 210. Through the positioning through-holes, the PCB board 210 can be accurately positioned on the bottom shell 240 and then detachably connected thereto.

[0054] Furthermore, the diameter of the support column 230 gradually decreases from an end close to the PCB board 210 to an end away from the PCB board 210 .

[0055] Specifically, the diameter of the support column 230 is not the same, but is thick at one end and thin at the other end, wherein the thick end is close to the PCB board 210, and the thin end is away from the PCB board 210 and contacts the intersection of the transverse partition 1302 and the longitudinal partition 1303. It contacts the top plate 110 through the thinner end, shrinking the contact point and avoiding the formation of a light spot on the top plate 110 when light is irradiated at the contact point, thereby improving the lighting display effect of the light-emitting device.

[0056] In addition, in other preferred embodiments of the present invention, the mask 10 is a plastic shell made of transparent material or translucent material.

[0057] Specifically, the mask 10 should have a certain light transmittance so that the light emitted by the light-emitting surface 220 can be transmitted through the mask 10 to emit light outward. The mask 10 here can be a plastic shell formed by integral injection molding using a transparent material or a translucent material. Whether to use a transparent material or a translucent material can be determined by the specific application scenario of the light-emitting device and the light transmittance of the decorative film layer on the outer surface of the mask 10.

[0058] Furthermore, the top plate 110 is polygonal, and the plurality of side plates 120 are connected around the outer periphery of the top plate 110 , and the outer surfaces of the top plate 110 and at least one of the side plates 120 are covered with the decorative film layer;

[0059] Alternatively, the top plate 110 is quadrilateral, and the four side plates 120 are connected around the outer periphery of the top plate 110. The outer surfaces of the top plate 110 and two adjacent side plates 1 / 20 are covered with the decorative film layer;

[0060] Alternatively, the top plate 110 is circular or oval, and the side plate 120 is connected around the outer periphery of the top plate 110 in an annular strip shape. The outer surfaces of the top plate 110 and the annular strip-shaped side plate 120 are covered with the decorative film layer.

[0061] Specifically, in a feasible embodiment of the present invention, the mask 10 is a flat prism structure without a bottom surface, and the decorative film layer is covered on its top surface (i.e., the top plate 110) and at least one prism surface (i.e., the side plate 120);

[0062] In another feasible embodiment of the present invention, the mask 10 is a flat cuboid or cube structure. When the four light-emitting devices are spliced and used in a square shape, the decorative film layer is covered on its top surface (i.e., the top plate 110) and two adjacent side surfaces (i.e., the side plate 120). Of course, when a single light-emitting device is used independently, the decorative film layer is covered on its top surface (i.e., the top plate 110) and four side surfaces (i.e., the side plate 120);

[0063] In another feasible embodiment of the present invention, the mask 10 is a flat cylinder or elliptical cylinder structure. The light-emitting device with this structure is generally used independently. At this time, the mask 10 includes a top surface and a side surface connected around the outer periphery of the top surface in an annular strip shape. The decorative film layer is covered on its top surface (i.e., the top plate 110) and the annular strip-shaped side surface (i.e., the side plate 1 / 20).

[0064] It should be noted here that the decorative film layer has certain light-transmitting properties, and users can customize different shape patterns on the decorative film layer, so that the light-emitting device is more diverse, and further improve the use quality of the light-emitting device.

[0065] In addition, please refer to FIGS. 6-7. The embodiment of the present invention further provides a display screen, which includes a frame 1 and multiple light-emitting devices 2 mentioned in any of the above embodiments. The side plates 120 of the multiple light-emitting devices 2 are detachably connected to the frame 1.

[0066] Specifically, the frame 1 is generally a metal frame structure. The bottom of the side panel 120, i.e., the end away from the top panel 110, can be directly connected to the frame 1, such as by plugging or snapping, or can be detachably connected to the frame 1 via the bottom housing 240 of the light-emitting device 2. Here, the bottom housing 240 of the light-emitting device 2 is detachably connected to the side panel 120, the PCB board 210 is detachably connected to the bottom housing 240 on a side facing the top panel 110, and the bottom housing 240 is detachably connected to the frame 1 on a side facing away from the PCB board 210. It should be noted that multiple light-emitting devices 2 are disposed on the same side of the frame 1 to form a display screen for displaying shapes and patterns on one side of the frame 1.

[0067] Here, for the specific structure, connection relationship and technical effects that can be achieved of the light-emitting device 2, please refer to the description of the above embodiments, and no further details will be given here.

[0068] Furthermore, the two opposite side panels 120 in the two adjacent light-emitting devices 2 are attached to each other and are not covered with the decorative film layer.

[0069] Specifically, when multiple light-emitting devices 2 are spliced ​​together, the two side panels 120 of two adjacent light-emitting devices 2 must be attached to each other. In this case, in order to avoid dark lines at the junction of the two light-emitting devices 2, the two opposing side panels 120 do not need to be covered with the decorative film layer. This can effectively improve the overall display effect of the display screen.

[0070] In addition, the display screen further includes a connector 3 , one end of the connector 3 extends into the frame 1 and is connected thereto, and the other end of the connector 3 is placed outside the frame 1 and is used to connect to another frame.

[0071] Specifically, in actual applications, multiple display screens may need to be assembled and used, that is, two frames 1 may be connected to each other. This requires the use of the connector 3. The two ends of the connector 3 extend into the interior of the two frames 1 and connect thereto respectively. The connection here includes the structural connection of the physical hardware and also includes the electrical connection. The electrical connection here includes the connection of the conductive wires and the communication connection of the control signal. In this way, the connector 3 can make the expanded use of the display screen possible, thereby expanding the scope of use of the display screen and improving the quality and experience of product use.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present invention, rather than to limit them. Although the embodiments of the present invention have been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A light-emitting device, characterized in that, Comprising: A face mask, including a top plate and side plates that are circumferentially connected to the outer periphery of the top plate and extend to the same side of the top plate; A light board, including a PCB board provided in the side plates and a plurality of LED lamp beads arranged in an array on the side of the PCB board facing the top plate; Wherein, a hole-shaped structure including a plurality of blind holes is provided on the side of the top plate facing the PCB board, and the opening of each blind hole faces the PCB board and is used to accommodate one of the LED lamp beads.

2. The light-emitting device according to claim 1, wherein The hole-shaped structure includes a plurality of transverse partitions and a plurality of longitudinal partitions provided on the side of the top plate facing the PCB board; The plurality of transverse partitions and the plurality of longitudinal partitions are arranged at equal intervals and intersect with each other to form the plurality of blind holes.

3. The light-emitting device according to claim 2, wherein The plurality of transverse partitions and the plurality of longitudinal partitions have the same thickness, and the thickness is 1.4 - 5 times the thickness of the side plates.

4. The light-emitting device according to claim 1, wherein The depth of the blind hole is 5 - 15 mm.

5. The light-emitting device according to claim 1, wherein The bottom of the blind hole is a concave arc surface facing the LED lamp bead.

6. The light-emitting device according to claim 2, wherein, Further comprising: A plurality of support columns, one end of the plurality of support columns is connected to the side of the PCB board facing the hole-shaped structure, and the other end extends towards the hole-shaped structure and contacts the intersection of the transverse partition and the longitudinal partition.

7. The light-emitting device according to claim 6, characterized in that, The diameter of the support column gradually decreases from the end close to the PCB board to the end far from the PCB board.

8. The light-emitting device according to any one of claims 1-7, characterized in that, Further comprising a bottom case, the bottom case is detachably connected to the side plates, and the side of the PCB board facing away from the hole-shaped structure is detachably connected to the side of the bottom case facing the hole-shaped structure.

9. A display screen, characterized in that, Comprising: A frame; A plurality of light-emitting devices as described in any one of claims 1 - 8, and the side plates of the plurality of light-emitting devices are detachably connected to the frame.

10. The display screen according to claim 9, wherein, Further comprising: A connector, one end of the connector extends into the frame and is connected thereto, and the other end of the connector is located outside the frame and is used to be connected to another frame.

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