LED display screen capable of adjusting pixel point spacing

Abstract

The utility model provides an LED display screen with adjustable pixel point spacing, which comprises a plurality of guide rails, a plurality of LED pixel points and a locking mechanism, the plurality of guide rails are arranged along a specified direction according to a set spacing, guide grooves are arranged in the guide rails, circuits are arranged in the guide grooves, and barrier plates are arranged on the inner walls of the guide grooves; each LED pixel point comprises a carrier and an LED lamp, the carrier is further provided with a conduction contact piece electrically connected with the LED lamp, the carrier is arranged on the guide rail in a sliding mode, and the conduction contact piece is in contact connection with the circuit; the locking mechanism comprises a connecting column, a first limiting block and a second limiting block are arranged on the connecting column, one of the first limiting block and the second limiting block is fixed to the connecting column, the other one of the first limiting block and the second limiting block is connected to the connecting column in a threaded mode, and the blocking plate and the carrier are clamped between the first limiting block and the second limiting block. The locking mechanism can achieve adjustment and fixation of the LED pixel points at any position on the guide rail, and variable pixel spacing of the LED display screen is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of LED display screens, in particular to an LED display screen with adjustable pixel pitch. Background Art

[0002] LED grid screen is a creative LED display screen, which is a mesh structure formed by connecting light points. It is a product of video display level, which can not only meet the needs of lighting decoration, but also can be used for text, image and video playback. It is a product with the concept of "large spacing", with a dot spacing between 35mm and 200mm, usually used in 500m 2 In the above ultra-large area display and creative display fields; the existing LED grid screen has, for example, a large dot pitch LED display screen structure with publication number CN202383944U.

[0003] The pixel pitch of a conventional LED grid screen is fixed and cannot be changed. If the screen size, installation height, viewing distance, brightness requirements, etc. do not meet the original design requirements, the entire project will need to be replaced, which is time-consuming and labor-intensive. Therefore, an LED display screen with adjustable dot pitch, published as CN102063845A, can adjust the spacing between pixels, but the position of the pixels is adjusted in steps, for example, the step distance is 1cm, 2cm, 5cm, 10cm, 20cm, etc. The adjustment of the pixel position is limited, and its practicality is not strong, which needs to be improved. Utility Model Content

[0004] In view of this, the utility model proposes an LED display screen with adjustable pixel pitch, which can at least to some extent solve the problem that the pixel positions of the LED display screen are difficult to adjust.

[0005] The technical solution of the utility model is achieved in this way:

[0006] An LED display screen with adjustable pixel pitch, comprising:

[0007] A plurality of guide rails are arranged along a specified direction at a set interval, a guide groove is provided in the guide rail, a line is provided in the guide groove, and a blocking plate is provided on the inner wall of the guide groove;

[0008] A plurality of LED pixel points, wherein the LED pixel points include a carrier and an LED lamp arranged on the carrier, the carrier is further provided with a conductive contact electrically connected to the LED lamp, the carrier is slidably arranged on the guide rail, and the conductive contact extends into the guide groove to contact and connect with the circuit;

[0009] A locking mechanism, the locking mechanism includes a connecting column, on which a first limit block and a second limit block are provided, one of the first limit block and the second limit block is fixed to the connecting column, and the other is threadedly connected to the connecting column, and the blocking plate and the carrier are clamped between the first limit block and the second limit block.

[0010] As a further optional solution for the LED display screen with adjustable pixel pitch, the circuit includes a power circuit and a signal circuit.

[0011] As a further optional solution for the LED display screen with adjustable pixel pitch, a cavity is formed inside the carrier, the LED lamp is arranged in the cavity, the conductive contact piece passes through the carrier and extends into the guide groove; and a light-transmitting area is provided on the carrier.

[0012] As a further optional solution of the LED display screen with adjustable pixel pitch, the carrier includes a first shell and a second shell, and the first shell and / or the second shell are made of transparent material.

[0013] As a further optional solution for the LED display screen with adjustable pixel pitch, one of the side walls of the guide rail is arranged upward, a supporting surface is formed on the carrier, and the supporting surface is mounted on the side of the guide rail arranged upward.

[0014] As a further optional solution for the LED display screen with adjustable pixel pitch, a groove is concavely formed on the outside of the carrier, the guide rail is arranged in the groove, and the inner side wall of the groove serves as the supporting surface.

[0015] As a further optional solution for the LED display screen with adjustable pixel pitch, the first limit block is a plate, the connecting column and the second limit block are respectively a stud and a nut on a bolt, the first limit block is arranged in the guide groove, the connecting column passes through the carrier and extends into the guide groove to be threadedly connected to the first limit block, and the second limit block is pressed on the carrier.

[0016] As a further optional solution for the LED display screen with adjustable pixel pitch, the first limit block and the connecting column are respectively a nut and a stud on a bolt, the first limit block is arranged in the guide groove, the connecting column passes through the carrier, and the second limit block is threadedly connected to the connecting column and pressed on the carrier.

[0017] As a further optional solution for the LED display screen with adjustable pixel pitch, the second limiting block is a butterfly nut.

[0018] As a further optional solution for the LED display screen with adjustable pixel pitch, an insulating plastic profile is provided in the guide groove, a groove for embedding the circuit is formed on the insulating plastic profile, and the conductive contact extends into the groove to contact and connect the circuit.

[0019] The beneficial effects of the utility model are as follows: the locking mechanism can adjust and fix the LED pixel point at any position on the guide rail, realize the variable pixel spacing of the LED display screen, and facilitate later maintenance.

[0020] Other optional purposes and advantages of the present invention are fully reflected through the following specific implementation methods and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is a schematic diagram of the structure of an LED display screen with adjustable pixel pitch in one embodiment;

[0023] Figure 2 This is a schematic diagram of the structure in which the LED pixel points in one embodiment are arranged on the guide rail;

[0024] Figure 3 Schematic diagram of the structure of an LED pixel in one embodiment;

[0025] Figure 4 is a cross-sectional schematic diagram of a guide rail described in an embodiment;

[0026] Figure 5 A cross-sectional schematic diagram of a pixel point arranged on a guide rail in an embodiment;

[0027] Figure 6 A cross-sectional schematic diagram of a pixel point arranged on a guide rail in an embodiment;

[0028] Figure 7 A cross-sectional schematic diagram of a pixel point arranged on a guide rail in an embodiment;

[0029] Figure 8 It is a cross-sectional schematic diagram of a pixel point arranged on a guide rail in an embodiment.

[0030] In the figure: 100, glass curtain wall;

[0031] 1. Guide rail; 11. Guide groove; 111. Blocking plate; 12. Circuit; 13. Insulating plastic profile;

[0032] 2. LED pixel; 21. carrier; 211. first shell; 212. second shell; 213. cavity; 22. LED lamp; 23. conductive contact; 24. groove; 241. support surface;

[0033] 3. Locking mechanism; 31. Connecting column; 32. First limiting block; 33. Second limiting block. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 therefore cannot be understood as a limitation on the present invention.

[0036] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0038] refer to Figure 1-4 An embodiment of the present application shows an LED display screen with adjustable pixel pitch, including multiple guide rails 1, multiple LED pixel points 2 and a locking mechanism 3. The multiple guide rails 1 are arranged along a specified direction at a set pitch. A guide groove 11 is provided in the guide rail 1, a circuit 12 is provided in the guide groove 11, and a blocking plate 111 is provided on the inner wall of the guide groove 11; the LED pixel point 2 includes a carrier 21 and an LED lamp 22 arranged on the carrier 21, and the carrier 21 is also provided with a conductive contact electrically connected to the LED lamp 22. The contact 23, the carrier 21 is slidably arranged on the guide rail 1, and the conductive contact 23 extends into the guide groove 11 to contact and connect with the circuit 12; the locking mechanism 3 includes a connecting column 31, and the connecting column 31 is provided with a first limit block 32 and a second limit block 33, one of the first limit block 32 and the second limit block 33 is fixed to the connecting column 31, and the other is threadedly connected to the connecting column 31, and the blocking plate 111 and the carrier 21 are clamped between the first limit block 32 and the second limit block 33.

[0039] Specifically, since one of the first limit block 32 and the second limit block 33 is threadedly connected to the connecting column 31, the distance between the first limit block 32 and the second limit block 33 can be adjusted. When the LED pixel point 2 needs to be moved on the guide rail 1, the distance between the first limit block 32 and the second limit block 33 can be increased so that the first limit block 32 and the second limit block 33 do not clamp the blocking plate 111 and the carrier 21, thereby allowing the carrier 21 to move. After adjusting the position of the LED pixel point 2 on the guide rail 1, the distance between the first limit block 32 and the second limit block 33 can be shortened so that the first limit block 32 and the second limit block 33 can clamp the blocking plate 111 and the carrier 21 again, so that the carrier 21 is pressed and fixed on the guide rail 1.

[0040] In the above scheme, the dot pitch of each LED pixel point 2 in the LED display screen can be adjusted to different dot pitch sizes according to different display environments such as different viewing angles, different viewing distances, displaying different contents, and different display requirements. The LED pixel point 2 can be ensured to have a stable position after adjustment through the locking mechanism 3, and will not move due to vibration.

[0041] Specifically, the circuit 12 includes a power circuit and a signal circuit, the power circuit may include a positive power circuit and a negative power circuit, the signal circuit may include a single-line integrated signal circuit, or two mutually redundant fault-tolerant single-line integrated signal circuits, or multiple signal circuits, etc., and the circuit 12 and the LED lamp 22 are electrically / signally conductive through the conductive contact 23. Accordingly, a plurality of conductive contacts 23 are provided.

[0042] In some embodiments, Figure 4 As shown, an insulating plastic profile 13 is provided in the guide groove 11, and an embedding groove for embedding the circuit 12 is formed on the insulating plastic profile 13, and the conductive contact 23 extends into the embedding groove to contact and connect the circuit 12. The position of the circuit 12 should be lower than the opening of the embedding groove so that the conductive contact 23 can extend into the embedding groove; in this way, the embedding groove can help separate the circuits 12 and ensure that the conductive contact 23 contacts the corresponding circuit 12.

[0043] It should be noted that the LED lamp 22 can be arranged inside or on the outer surface of the carrier 21; in some embodiments, a cavity 213 is formed inside the carrier 21, the LED lamp 22 is arranged in the cavity 213, the conductive contact member 23 passes through the carrier 21 and extends into the guide groove 11; a light-transmitting area is provided on the carrier 21. In this embodiment, the carrier 21 can provide protection for the LED lamp 22;

[0044] In the above scheme, if Figure 3 As shown, the carrier 21 can be composed of a first shell 211 and a second shell 212, so as to form the cavity 213 and complete the installation of the LED lamp 22 inside the carrier 21; the first shell 211 and / or the second shell 212 are made of transparent materials to transmit the light emitted by the LED lamp 22;

[0045] In one example, Figure 5 As shown, the guide rail 1 can be set on the inner side of the glass curtain wall 100 by bonding or other methods ( Figure 5 The right side of the glass curtain wall 100), and the outer side of the glass curtain wall 100 ( Figure 5 The left side of the glass curtain wall 100 is the viewing side; Figure 5 In the embodiment, the carrier 21 can transmit light to the left.

[0046] In another example, Figure 6 As shown, the guide rail 1 can be arranged on the outside of the glass curtain wall 100 ( Figure 6 The right side of the glass curtain wall 100 is the viewing side. Figure 6In the embodiment, the carrier 21 can transmit light to the right.

[0047] In some embodiments, Figure 3 and Figure 5 The first limit block 32 is a plate, the connecting column 31 and the second limit block 33 are respectively a stud and a nut on a bolt, the first limit block 32 is arranged in the guide groove 11, the connecting column 31 passes through the carrier 21 and extends into the guide groove 11 and is threadedly connected to the first limit block 32, and the second limit block 33 is pressed on the carrier 21.

[0048] In some embodiments, Figure 7 As shown, the first limit block 32 and the connecting column 31 are respectively a nut and a stud on a bolt, the first limit block 32 is arranged in the guide groove 11, the connecting column 31 passes through the carrier 21, and the second limit block 33 is threadedly connected to the connecting column 31 and pressed on the carrier 21. The second limit block 33 can be a nut, more preferably a butterfly nut, so that the position of the LED pixel point 2 can be adjusted without tools.

[0049] In some embodiments, reference Figure 3 or Figure 6 One side wall of the guide rail 1 is arranged upward, and a support surface 241 is formed on the carrier 21, and the support surface 241 is mounted on the side of the guide rail 1 arranged upward. In this way, the guide rail 1 provides support for the support surface 241 on the carrier 21, which can reduce the shear force on the connecting column 31 and increase the stability of the locking mechanism 3.

[0050] In one example, Figure 3 and Figure 5 As shown, the carrier 21 is provided with a groove 24 on the outside, the guide rail 1 is arranged in the groove 24, and the inner side wall of the groove 24 serves as the support surface 241. In this embodiment, the carrier 21 has partial protrusions on both the upper and lower sides of the guide rail 1, which can be used to transmit the light of the LED lamp 22.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An LED display screen with adjustable pixel pitch, characterized in that: include: A plurality of guide rails are arranged along a specified direction at a set interval, a guide groove is provided in the guide rail, a line is provided in the guide groove, and a blocking plate is provided on the inner wall of the guide groove; A plurality of LED pixel points, wherein the LED pixel points include a carrier and an LED lamp arranged on the carrier, the carrier is further provided with a conductive contact electrically connected to the LED lamp, the carrier is slidably arranged on the guide rail, and the conductive contact extends into the guide groove to contact and connect with the circuit; A locking mechanism, the locking mechanism includes a connecting column, on which a first limit block and a second limit block are provided, one of the first limit block and the second limit block is fixed to the connecting column, and the other is threadedly connected to the connecting column, and the blocking plate and the carrier are clamped between the first limit block and the second limit block.

2. The LED display screen with adjustable pixel pitch according to claim 1, characterized in that: The circuits include power circuits and signal circuits.

3. The LED display screen with adjustable pixel pitch according to claim 1, characterized in that: A cavity is formed inside the carrier, the LED lamp is arranged in the cavity, the conductive contact piece passes through the carrier and extends into the guide groove; and a light-transmitting area is arranged on the carrier.

4. The LED display screen with adjustable pixel pitch according to claim 3, characterized in that: The carrier comprises a first shell and a second shell, and the first shell and / or the second shell are made of transparent material.

5. The LED display screen with adjustable pixel pitch according to claim 3, characterized in that: One side wall of the guide rail is arranged upwards, and a supporting surface is formed on the carrier, and the supporting surface is mounted on the side surface of the guide rail arranged upwards.

6. The LED display screen with adjustable pixel pitch according to claim 5, characterized in that: A groove is concavely formed on the outside of the carrier, the guide rail is arranged in the groove, and the inner side wall of the groove serves as the supporting surface.

7. The LED display screen with adjustable pixel pitch according to any one of claims 1 to 6, characterized in that: The first limit block is a plate body, the connecting column and the second limit block are respectively a stud and a nut on a bolt, the first limit block is arranged in the guide groove, the connecting column passes through the carrier and extends into the guide groove to be threadedly connected with the first limit block, and the second limit block is pressed on the carrier.

8. The LED display screen with adjustable pixel pitch according to any one of claims 1 to 6, characterized in that: The first limit block and the connecting column are respectively a nut and a stud on a bolt, the first limit block is arranged in the guide groove, the connecting column passes through the carrier, and the second limit block is threadedly connected to the connecting column and pressed on the carrier.

9. The LED display screen with adjustable pixel pitch according to claim 8, characterized in that: The second limiting block is a butterfly nut.

10. The LED display screen with adjustable pixel pitch according to claim 1, characterized in that: An insulating plastic profile is arranged in the guide groove, an embedding groove for embedding a circuit is formed on the insulating plastic profile, and the conductive contact piece extends into the embedding groove to contact and connect the circuit.

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