LED display screen

Abstract

The utility model discloses an LED display screen, and belongs to the technical field of display screens. The LED display screen comprises a mask which is provided with a plurality of light holes, and a first connecting hole is formed in the mask; the PCB is provided with a plurality of LED light-emitting parts, the light-transmitting holes and the LED light-emitting parts are arranged in a one-to-one correspondence mode, the PCB is provided with second connecting holes and first receding holes, and the first receding holes and the first connecting holes are arranged in a corresponding mode. A first connecting column and a third connecting hole are arranged on the adapter bracket, and the first connecting column is arranged in the first avoiding hole in a penetrating manner; the first fastener penetrates through the second connecting hole and is connected with the third connecting hole; the second fastener penetrates through the first connecting hole and is connected with the first connecting column; a plurality of limiting bosses are arranged on the inner wall face of the bottom shell in the circumferential direction at intervals and abut against the outer wall face of the adapter bracket. According to the utility model, excessive hole sites do not need to be additionally arranged on the bottom shell, so that the structural strength of the bottom shell is improved.

Description

Technical Field

[0001] This utility model relates to the field of display screen technology, and in particular to an LED display screen. Background Technology

[0002] The working principle of LED displays is mainly based on the electroluminescence principle of light-emitting diodes (LEDs). When an LED is in a forward-biased state (i.e., a forward voltage is applied across its terminals), current flows from the anode to the cathode, and the semiconductor crystal emits light of different colors, ranging from ultraviolet to infrared. The intensity of the light is related to the current. By controlling the on / off state of these LEDs, various images and text can be formed.

[0003] LED displays are widely used in various fields, such as information display in public places like stations, docks, airports, shopping malls, hospitals, hotels, banks, and securities markets, as well as outdoor advertising screens and stage backdrops.

[0004] Existing LED displays mount both the mask and PCB board onto the base shell, which requires drilling many holes in the base shell during manufacturing, reducing its structural strength.

[0005] Therefore, there is an urgent need to provide an LED display screen to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide an LED display screen that does not require adding too many holes on the bottom shell, thereby improving the structural strength of the bottom shell.

[0007] To achieve the above objectives, the following technical solution is provided:

[0008] LED displays include:

[0009] A face mask having multiple light-transmitting holes, and a first connection hole being provided on the face mask;

[0010] The PCB board has multiple LED light-emitting elements, and multiple light-transmitting holes are arranged one-to-one with the multiple LED light-emitting elements. The PCB board is provided with a second connecting hole and a first clearance hole, and the first clearance hole is arranged corresponding to the first connecting hole.

[0011] An adapter bracket is provided with a first connecting post and a third connecting hole, wherein the first connecting post passes through the first clearance hole;

[0012] The first fastener passes through the second connecting hole and connects to the third connecting hole;

[0013] The second fastener passes through the first connecting hole and connects to the first connecting post;

[0014] The bottom shell has multiple limiting protrusions spaced circumferentially on its inner wall surface, and the multiple limiting protrusions abut against the outer wall surface of the adapter bracket.

[0015] As an optional solution for the LED display screen, the bottom shell is provided with a second connecting post, the adapter bracket is provided with a second clearance hole, the second connecting post passes through the second clearance hole, the PCB board is provided with a fourth connecting hole, and the LED display screen further includes:

[0016] The third fastener passes through the fourth connecting hole and connects to the second connecting post.

[0017] As an optional solution for LED displays, the adapter bracket includes interlaced horizontal and vertical reinforcing ribs.

[0018] As an optional solution for the LED display screen, the mask is provided with a first brim extending along a first direction, the first brim being located above the light-transmitting hole.

[0019] As an optional solution for the LED display screen, a plurality of first reinforcing ribs are provided at intervals on the left side of each light-transmitting hole, and a plurality of second reinforcing ribs are provided at intervals on the right side of each light-transmitting hole, wherein both the first reinforcing ribs and the second reinforcing ribs extend along a second direction.

[0020] As an optional feature of the LED display screen, the height of the plurality of first reinforcing rib protrusions gradually increases in the direction away from the light-transmitting hole; and / or

[0021] The height of the multiple second reinforcing ribs gradually increases in the direction away from the light-transmitting hole.

[0022] As an optional solution for the LED display screen, the mask is provided with a second brim extending along the first direction, the second brim being located below the light-transmitting hole.

[0023] As an optional solution for the LED display screen, the height of the first brim protrusion is greater than the height of the second brim protrusion.

[0024] As an optional solution for the LED display screen, a plurality of third reinforcing ribs are provided between the light-transmitting hole and the second brim, and the third reinforcing ribs extend along the second direction.

[0025] As an optional solution for the LED display screen, a third brim is provided around the first connection hole.

[0026] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0027] The LED display screen provided by this utility model consists of a face mask, a PCB board, and an adapter bracket stacked from top to bottom and mounted on a base. The PCB board is securely mounted to the adapter bracket via first fasteners passing through second and third connecting holes. The face mask is securely mounted to the adapter bracket via second fasteners passing through first connecting holes and first connecting posts. The adapter bracket abuts against multiple limiting bosses on the base, completing the assembly of the LED display screen. By adding the adapter bracket, not only are excessive holes on the base avoided, improving the structural strength of the base, but the face mask and PCB board can also be pre-assembled onto the adapter bracket to form a module, increasing the assembly speed of the LED display screen. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0029] Figure 1 This is an exploded view of the LED display screen in an embodiment of the present invention (fasteners are not shown in the diagram);

[0030] Figure 2 This is a schematic diagram of the structure of the face mask in an embodiment of the present invention;

[0031] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0032] Figure 4 This is a schematic diagram of the PCB board structure in an embodiment of the present invention;

[0033] Figure 5 for Figure 4 A magnified view of a section at point B in the middle;

[0034] Figure 6 This is a schematic diagram of the structure of the adapter bracket in an embodiment of the present utility model;

[0035] Figure 7 This is a schematic diagram of the bottom shell in an embodiment of the present invention.

[0036] Figure label:

[0037] 1. Face mask; 101. Light-transmitting hole; 102. First connecting hole; 103. First brim; 104. First reinforcing rib; 105. Second reinforcing rib; 106. Second brim; 107. Third reinforcing rib; 108. Third brim;

[0038] 2. PCB board; 201. LED light-emitting component; 202. Second connecting hole; 203. First clearance hole; 204. Fourth connecting hole;

[0039] 3. Adapter bracket; 301. First connecting post; 302. Third connecting hole; 303. Second clearance hole; 304. Transverse reinforcing rib; 305. Longitudinal reinforcing rib;

[0040] 4. Bottom shell; 401. Limiting boss; 402. Second connecting post. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0042] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are used only for the convenience of describing this utility model and for 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. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0043] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0044] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0045] To avoid adding too many holes to the bottom shell and to improve its structural strength, this embodiment provides an LED display screen, which is described below in conjunction with... Figures 1 to 7 This embodiment will be described in detail. The first direction mentioned in this embodiment is... Figure 1 The X direction in this embodiment, and the second direction mentioned in this embodiment are... Figure 1 The Z direction in the equation.

[0046] The LED display screen in this embodiment includes a face mask 1, a PCB board 2, an adapter bracket 3, a first fastener, a second fastener, and a base shell 4. The face mask 1 has multiple light-transmitting holes 101 and a first connecting hole 102. The PCB board 2 has multiple LED light-emitting elements 201, with each light-transmitting hole 101 corresponding to one of the LED light-emitting elements 201. The PCB board 2 has a second connecting hole 202 and a first clearance hole 203, with the first clearance hole 203 corresponding to the first connecting hole 102. The adapter bracket 3 has a first connecting post 301 and a third connecting hole 302, with the first connecting post 301 passing through the first clearance hole 203. The first fastener passes through the second connecting hole 202 and connects to the third connecting hole 302. The second fastener passes through the first connecting hole 102 and connects to the first connecting post 301. The inner wall of the bottom shell 4 is provided with multiple limiting protrusions 401 spaced circumferentially, and the multiple limiting protrusions 401 abut against the outer wall of the adapter bracket 3. It can be understood that the number of the first connecting hole 102, the second connecting hole 202, the first clearance hole 203, the first connecting post 301 and the third connecting hole 302 in this embodiment can be designed according to the actual use, and no further restrictions are imposed here.

[0047] In summary, the LED display screen provided by this utility model comprises a mask 1, a PCB board 2, and an adapter bracket 3 stacked from top to bottom and mounted on a base shell 4. The PCB board 2 is securely mounted to the adapter bracket 3 by means of first fasteners passing through second connecting holes 202 and third connecting holes 302. The mask 1 is securely mounted to the adapter bracket 3 by means of second fasteners passing through first connecting holes 102 and first connecting posts 301. The adapter bracket 3 abuts against multiple limiting bosses 401 on the base shell 4, completing the assembly of the LED display screen. By adding the adapter bracket 3, not only are excessive holes on the base shell 4 avoided, improving the structural strength of the base shell 4, but the mask 1 and PCB board 2 can also be pre-assembled onto the adapter bracket 3 to form a module, increasing the assembly speed of the LED display screen.

[0048] Furthermore, a second connecting post 402 is provided on the bottom shell 4, and a second clearance hole 303 is provided on the adapter bracket 3. The second connecting post 402 passes through the second clearance hole 303. A fourth connecting hole 204 is provided on the PCB board 2. The LED display screen also includes a third fastener, which passes through the fourth connecting hole 204 and connects to the second connecting post 402. By using the third fastener to pass through the fourth connecting hole 204 and the second connecting post 402, the PCB board 2 and the bottom shell 4 are connected and fixed, further improving the assembly firmness of the LED display screen.

[0049] Furthermore, the adapter bracket 3 includes interlaced transverse reinforcing ribs 304 and longitudinal reinforcing ribs 305. By adding transverse reinforcing ribs 304 and longitudinal reinforcing ribs 305, the structural strength of the adapter bracket 3 is improved. For example, the transverse reinforcing ribs 304 are provided with a plurality of second connecting holes 202 and a plurality of first clearance holes 203 at intervals along the first direction, and the longitudinal reinforcing ribs 305 are provided with a plurality of second clearance holes 303 at intervals along the second direction.

[0050] Furthermore, the face mask 1 is provided with a first brim 103 extending along a first direction, located above the light-transmitting hole 101. The first brim 103 can block rainwater or sunlight from above the light-transmitting hole 101. Even further, the top of the first brim 103 is formed with a wavy surface to facilitate the scattering of external light and reduce the influence of external light on the light parameters of the LED light-emitting element 201.

[0051] Furthermore, each light-transmitting hole 101 has multiple first reinforcing ribs 104 spaced apart on its left side and multiple second reinforcing ribs 105 spaced apart on its right side, with both the first reinforcing ribs 104 and the second reinforcing ribs 105 extending along a second direction. By adding the first reinforcing ribs 104 and the second reinforcing ribs 105, the overall structural strength of the mask 1 is improved, which is conducive to the large-area assembly of the LED display screen; on the other hand, since both the first reinforcing ribs 104 and the second reinforcing ribs 105 extend along the second direction, rainwater can be quickly drained downwards, avoiding water accumulation.

[0052] Furthermore, the height of the protrusions of the plurality of first reinforcing ribs 104 gradually increases in the direction away from the light-transmitting hole 101; and / or the height of the protrusions of the plurality of second reinforcing ribs 105 gradually increases in the direction away from the light-transmitting hole 101. The first reinforcing ribs 104 and the second reinforcing ribs 105 can not only block sunlight and dust, but also increase the light-emitting angle of the LED light-emitting element 201.

[0053] Furthermore, the mask 1 is provided with a second brim 106 extending along the first direction, located below the light-transmitting hole 101. The addition of the second brim 106 facilitates the blocking of rainwater or sunlight from below the light-transmitting hole 101. Optionally, the height of the first brim 103 protruding is greater than the height of the second brim 106 protruding. Since the height of the second brim 106 is less than the height of the first brim 103, the second brim 106 can be prevented from obstructing the viewer's vision.

[0054] Furthermore, a plurality of third reinforcing ribs 107 are provided between the light-transmitting hole 101 and the second brim 106, and the third reinforcing ribs 107 extend along the second direction. By adding the third reinforcing ribs 107, the structural strength of the mask 1 can be further improved.

[0055] Furthermore, a third brim 108 is provided around the first connecting hole 102. The third brim 108 is used to block some of the reflected light from the metal parts such as screws or bolts, which helps to improve the display quality of the LED display screen.

[0056] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments. Many other equivalent embodiments may be included without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. LED display screen, characterized in that The application relates to a LED display screen. The LED display screen comprises a mask (1) provided with a plurality of light transmission holes (101), a PCB board (2) provided with a plurality of LED light emitting elements (201), and a first connecting hole (102) arranged on the mask (1). The plurality of light transmission holes (101) are arranged in one-to-one correspondence with the plurality of LED light emitting elements (201), and the PCB board (2) is provided with a second connecting hole (202) and a first avoiding hole (203) arranged in correspondence with the first connecting hole (102). An adapter support (3) is arranged on the adapter support (3) and provided with a first connecting column (301) and a third connecting hole (302), and the first connecting column (301) is arranged in the first avoiding hole (203). A first fastener is arranged through the second connecting hole (202) and the third connecting hole (302). A second fastener is arranged through the first connecting hole (102) and the first connecting column (301). A bottom shell (4) is arranged on the bottom shell (4), and a plurality of limiting convex bosses (401) are arranged on the inner wall surface of the bottom shell (4) in a circumferential direction, and the plurality of limiting convex bosses (401) are in abutment with the outer wall surface of the adapter support (3).

2. The LED display screen of claim 1, wherein, The bottom shell (4) is provided with a second connecting column (402), the adapter support (3) is provided with a second avoiding hole (303), the second connecting column (402) is arranged in the second avoiding hole (303), and the PCB board (2) is provided with a fourth connecting hole (204). The LED display screen further comprises a third fastener arranged through the fourth connecting hole (204) and the second connecting column (402).

3. The LED display screen of claim 1, wherein, The adapter support (3) comprises transversely arranged transverse reinforcing ribs (304) and longitudinally arranged longitudinal reinforcing ribs (305).

4. The LED display screen according to any one of claims 1-3, characterized in that, The mask (1) is provided with a first brim (103) extending along a first direction, and the first brim (103) is arranged above the light transmission hole (101).

5. The LED display screen of claim 4, wherein, A plurality of first reinforcing ribs (104) are arranged on the left side of each light transmission hole (101), a plurality of second reinforcing ribs (105) are arranged on the right side of each light transmission hole (101), and the first reinforcing ribs (104) and the second reinforcing ribs (105) extend along a second direction.

6. The LED display screen of claim 5, wherein, The height of the plurality of first reinforcing ribs (104) gradually increases in a direction away from the light transmission hole (101); and / or The height of the plurality of second reinforcing ribs (105) gradually increases in a direction away from the light transmission hole (101).

7. The LED display screen of claim 4, wherein, The mask (1) is provided with a second brim (106) extending along the first direction, and the second brim (106) is arranged below the light transmission hole (101).

8. The LED display screen of claim 7, wherein, The height of the first brim (103) is greater than the height of the second brim (106).

9. The LED display screen of claim 7, wherein, A plurality of third reinforcing ribs (107) are arranged between the light transmission hole (101) and the second brim (106), and the third reinforcing ribs (107) extend along the second direction.

10. The LED display screen of claim 4, wherein, The first connecting hole (102) is provided with a third brim (108).

Images