LED display carrier plate with V-cut structure and display device

Abstract

The utility model discloses an LED display carrier plate with a V-cut structure and a display device. The LED display carrier plate is formed by arranging and combining a plurality of strip-shaped display units in the direction perpendicular to the strip shape. Each display unit is formed by arranging and combining at least one first type of sub-display unit and one second type of sub-display unit in the direction perpendicular to the strip shape, and in the same display unit, the first type of sub-display unit and the second type of sub-display unit are integrally arranged; in the same LED display carrier plate, the multiple display units are integrally arranged, and a V-cut structure is arranged between every two adjacent display units. Each display unit is an independent circuit system with complete functions, on one hand, variable width of the LED display carrier plate can be achieved, on the other hand, when the LED display carrier plate breaks down, maintenance can be completed only by replacing the display unit with the fault along the arranged V-cut structure, operation is simple, and maintenance is convenient. Waste caused by replacement of the whole LED display carrier plate can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of LED display, in particular to an LED display carrier board and a display device with a V-cut structure. Background Art

[0002] Conventional LED display devices are constructed by splicing together LED display carrier boards. Each LED display carrier board's substrate is a single, indivisible PCB. The circuitry within each LED display carrier board is a complete, indivisible circuit system.

[0003] The following technical problems are prone to occur in the existing LED display carrier structure:

[0004] 1. Generally, the width of LED display carrier boards is fixed. When splicing the LED display carrier boards, if the width of the carrier medium is not an integer multiple of the LED display carrier board, the carrier medium will not be fully laid.

[0005] 2. If a problem occurs with a specific LED or display area on an LED display carrier board, the faulty LED or even the entire LED display carrier board must be replaced. Because LEDs are tiny, removing the faulty LED and re-soldering a new one is both time-consuming and labor-intensive. Replacing the entire LED display carrier board also results in significant waste and cost.

[0006] The above two technical problems have caused troubles to those skilled in the art. Utility Model Content

[0007] In view of the above deficiencies in the prior art, the present utility model discloses two technical solutions.

[0008] The first technical solution is an LED display carrier board with a V-cut structure. This board is composed of multiple strip-shaped display units arranged perpendicular to the strip direction, with a V-cut structure placed between adjacent display units. Each display unit is a fully functional and independently operating circuit system. This V-cut structure allows for variable width of the LED display carrier board. Furthermore, if a problem occurs with a lamp or display area, the V-cut structure simply removes the faulty display unit and replaces it with a functioning one. This solution is simple to operate and avoids the waste associated with replacing the entire LED display carrier board.

[0009] The second technical solution is a display device including the first technical solution.

[0010] The first technical solution of the present utility model is as follows:

[0011] An LED display carrier board with a V-cut structure is composed of a plurality of strip-shaped display units arranged and combined in a direction perpendicular to the strips.

[0012] Furthermore, the display unit is composed of at least one first-type sub-display unit and one second-type sub-display unit arranged and combined in a direction perpendicular to the strip direction. In the same display unit, the first-type sub-display unit and the second-type sub-display unit are arranged integrally.

[0013] In this technical solution, LED illuminants are arranged at equal intervals on the front of the first-type sub-display unit and the second-type sub-display unit.

[0014] In the technical solution, in the same LED display carrier board, a plurality of the display units are integrally arranged, and a V-cut structure is provided between two adjacent display units.

[0015] In this technical solution, the first type of sub-display unit is provided with a data signal line on the front and a VDD power supply line on the back; the second type of sub-display unit is provided with a data signal line on the front and a GND line on the back.

[0016] Furthermore, half holes are symmetrically and evenly arranged on both sides between every two adjacent LED light-emitting bodies in the first type sub-display unit, and half holes are also symmetrically and evenly arranged on both sides between every two adjacent LED light-emitting bodies in the second type sub-display unit.

[0017] In the same display unit, half holes at the same position on the sides of the first-type sub-display unit and the adjacent second-type sub-display unit are combined into a complete hole. In the LED display carrier, half holes at the same position on the sides of the adjacent and connected display units are combined into a complete hole.

[0018] In this technical solution, a first branch line and a second branch line are provided on the display unit.

[0019] One end of the first branch line is electrically connected to the second electrode pin on the first type sub-display unit, and the other end is electrically connected to the GND line on the back of the adjacent second type sub-display unit through a via; one end of the second branch line is electrically connected to the first electrode pin on the second type sub-display unit, and the other end is electrically connected to the VDD power supply line on the back of the adjacent first type sub-display unit through a via.

[0020] Furthermore, the second electrode pin corresponding to each LED light-emitting body in the first type of sub-display unit is electrically connected to one of the first branch lines, or multiple adjacent LED light-emitting bodies in the first type of sub-display unit are grouped together, and the second electrode pins in the same group are electrically connected and then electrically connected to one of the first branch lines.

[0021] The first electrode pin of each LED light-emitting body in the second type sub-display unit is electrically connected to one of the second branch lines, or multiple adjacent LED light-emitting bodies in the second type sub-display unit are grouped together, and the first electrode pins in the same group are electrically connected and then electrically connected to one of the second branch lines.

[0022] In this technical solution, the first branch line and the second branch line are both arranged on the front side of the display unit.

[0023] In a preferred technical solution, the display unit includes a first-type sub-display unit and a second-type sub-display unit.

[0024] At this time, the first type of sub-display unit and the second type of sub-display unit are combined in a direction perpendicular to the strip direction to form the display unit. In the same display unit, the first type of sub-display unit and the second type of sub-display unit are integrally arranged.

[0025] In an optional technical solution, the display unit includes two first-type sub-display units and two second-type sub-display units.

[0026] At this time, the first type of sub-display units and the second type of sub-display units are alternately combined along a direction perpendicular to the strip direction to form the display unit. In the same display unit, the first type of sub-display units and the second type of sub-display units are integrally arranged.

[0027] In this technical solution, one end of the display unit is provided with a power supply and a communication interface.

[0028] A second technical solution of the present invention is a display device including the first technical solution.

[0029] The utility model provides an LED display carrier board and a display device with a V-cut structure, in which each display unit is a circuit system with complete functions and capable of working independently. On the one hand, the V-cut structure can realize variable width of the LED display carrier board. On the other hand, when a fault occurs on the LED display carrier board, it is only necessary to replace the faulty display unit along the provided V-cut structure to complete the repair. The operation is simple, and the waste caused by replacing the entire LED display carrier board can be avoided, thereby achieving the purpose of saving a lot of costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1This is a front structural diagram of an embodiment of an LED display carrier board with a V-cut structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the back structure of an embodiment of an LED display carrier board with a V-cut structure of the present invention;

[0032] Figure 3 This is a schematic diagram of the transverse cross-sectional structure of an embodiment of an LED display carrier board with a V-cut structure of the present invention;

[0033] Figure 4 This is a schematic structural diagram of an embodiment of a display unit in an LED display carrier board with a V-cut structure of the present invention;

[0034] Figure 5 This is a structural diagram of a first type of sub-display unit and a second type of sub-display unit in an LED display carrier board with a V-cut structure of the present invention;

[0035] Figure 6 This is a front structural diagram of another embodiment of an LED display carrier board with a V-cut structure of the present invention;

[0036] Figure 7 This is a schematic diagram of the back structure of another embodiment of an LED display carrier board with a V-cut structure of the present invention;

[0037] Figure 8 This is a schematic structural diagram of another embodiment of a display unit in an LED display carrier board with a V-cut structure according to the present invention;

[0038] Figure 9 This is a schematic structural diagram of an embodiment of the present invention in which a first branch line and a second branch line are arranged on a display unit in an LED display carrier board with a V-cut structure;

[0039] Figure 10 This is a structural schematic diagram of another embodiment of the present invention in which a first branch line and a second branch line are arranged on a display unit in an LED display carrier board with a V-cut structure;

[0040] Figure 11 This is a schematic diagram of a structure in which a power supply and a communication interface are provided at one end of a display unit in an LED display carrier board with a V-cut structure in the present invention;

[0041] Figure 12 This is a structural schematic diagram of an LED display carrier board with a V-cut structure in the present invention, in which a power supply and a communication interface are arranged at one end. DETAILED DESCRIPTION

[0042] The present invention will be further described in detail below with reference to the accompanying drawings.

[0043] To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. Those skilled in the art will understand that some well-known structures and their descriptions are omitted in the drawings. The same or similar reference numerals correspond to the same or similar components.

[0044] An LED display carrier board consists of an array of LEDs mounted on a PCB substrate. Common specifications include a length of 150 cm, a width of 25 cm, and a thickness of approximately 2 mm. The LED display carrier board houses power and signal lines for the LEDs, forming a unified structure, circuitry, and functionality.

[0045] In the present invention, each display unit is a fully functional and independently working circuit system. On this basis, the width of the LED display carrier board can be adjusted according to demand. In the event of a fault, the faulty display unit can be replaced along the set V-cut structure to complete the repair, which is simple to operate.

[0046] If, when the LED display carrier boards are spliced ​​in the width direction, the width of the carrier medium is not an integer multiple of the width of the LED display carrier boards, resulting in a gap at the edge of the carrier medium, the gap cannot accommodate the entire LED display carrier board. In this case, according to the V-cut structure of the present invention, the LED display carrier board of the required width can be broken off along the V-cut structure.

[0047] In view of this, the embodiments of the present invention are as follows: Example 1

[0048] This embodiment is an LED display carrier board 1 with a V-cut structure. The LED display carrier board 1 is composed of a plurality of strip display units 10 arranged and combined in a direction perpendicular to the strip direction. Figure 1 and Figure 2 shown.

[0049] Figure 1 This is the front side of the LED display carrier board 1. Figure 2 It is the back side of the LED display carrier board 1. A plurality of strip display units 10 are arranged and assembled in a direction perpendicular to the strips. It should be noted that the direction perpendicular to the strips is consistent with the width direction of the LED display carrier board.

[0050] In this embodiment, the LED display carrier board 1 is a single unit that can be divided into multiple display units 10. Each display unit 10 is a fully functional, independently operable circuit system. However, it should be noted that the "combination" of display units 10 to form the LED display carrier board 1 merely refers to the compositional relationship between the LED display carrier board 1 and the display units 10. It does not imply that the display units 10 are physically independent entities, requiring multiple such entities to be assembled to form the LED display carrier board 1. In practice, within the same LED display carrier board 1, the multiple display units 10 comprising the LED display carrier board 1 are integrated.

[0051] In a further embodiment of the present invention, Figure 4 and Figure 5 As shown, the display unit 10 is composed of at least one first-type sub-display unit 11 and one second-type sub-display unit 12 arranged and combined perpendicular to the strip direction. Similarly, the term "combined" here simply refers to the compositional relationship between the display unit 10 and the sub-display units. In the same display unit 10, the first-type sub-display unit 11 and the second-type sub-display unit 12 that constitute the display unit 10 are integrally arranged.

[0052] This embodiment Figure 1 and Figure 4 As shown, LED illuminators 3 are evenly spaced on the front of the first sub-display unit 11 and the second sub-display unit 12. This paragraph contains the following two meanings:

[0053] The first type: the spacing between the equally spaced LED illuminants 3 on the first type of sub-display unit 11 and the equally spaced LED illuminants 3 on the second type of sub-display unit 12 is the same.

[0054] The second type: the spacing between the equally spaced LED illuminants 3 on the first type of sub-display unit 11 and the equally spaced LED illuminants 3 on the second type of sub-display unit 12 is different.

[0055] The preferred embodiment of this technical solution is the second one, and the LED light-emitting body 3 in the accompanying drawings is also described by default as the second way. This technical solution actually also includes the first setting method in the spacing setting of the LED light-emitting bodies 3 on the first type of sub-display unit 11 and the second type of sub-display unit 12, which will not be repeated below.

[0056] The LED light emitting body 3 in this embodiment is preferably a surface-mount LED light emitting chip.

[0057] In this embodiment, Figure 1 、 Figure 2 、 Figure 3 、 Figure 6 、 Figure 7 and Figure 12As shown, a V-cut structure 21 is provided between two adjacent display units 10 in the same LED display carrier board 1 .

[0058] V-cut is a cutting method that cuts a series of V-shaped cuts on a PCB board. By applying appropriate force, the PCB board can be easily broken, so that the PCB board can be separated into multiple individual boards. The cut shape of the V-cut is usually V-shaped. In this embodiment, the V-cut structure 21 is also a V-shaped notch. In the preferred embodiment, the V-cut structure 21 is provided on both the front and back sides of the LED display carrier board 1. Figure 3 shown.

[0059] In this embodiment, a V-cut structure 21 is provided between the display units 10. When a display unit 10 fails, the failed display unit 10 can be easily broken to form a regular and flat fracture 22. Figure 4 and 8 As shown. Then remove the faulty display unit 10 and replace it with a normal display unit 10 to complete the repair. The whole operation is very simple and does not cause waste.

[0060] In this embodiment, the LED display carrier board 1 is a PCB board.

[0061] In other alternative embodiments, the LED display carrier board 1 may also be made of a material that can be bent or deformed freely.

[0062] In other alternative embodiments, the LED display carrier board 1 may also be a PCB board made of a transparent material.

[0063] This embodiment Figure 1 、 Figure 2 、 Figure 6 and Figure 7 As shown, the first type of sub-display unit is provided with a data signal line 43 on the front and a VDD power supply line 41 on the back; the second type of sub-display unit is provided with a data signal line 43 on the front and a GND line 42 on the back.

[0064] In this embodiment, the VDD power supply line and the GND line are preferably thickened metal lines. This is because the thickness of the lines on conventional PCB boards is generally between 17μm and 70μm. However, such a line thickness is too small and cannot cope well with overcurrent requirements. When the line is too long, the voltage will be significantly attenuated, which will eventually lead to a decrease in brightness and color distortion of the LED light source at the far end. In addition, a long line may also cause heating problems. The LED display carrier board 1 in this embodiment needs to be suitable for large-scale LED transparent screens. If the thickness of the conventional line is such that the length of the LED display carrier board 1 exceeds 2m, it will be difficult to ensure normal power supply to the tail end of the LED display carrier board 1.

[0065] Therefore, the VDD power supply line and the GND line in this embodiment are thickened metal lines with strong overcurrent capability. Specifically, the thickness of the VDD power supply line and the GND line in this embodiment is ≥270 μm.

[0066] like Figure 4 and Figure 5 As shown, in this embodiment, half holes 31 are symmetrically and evenly spaced on both sides between every two adjacent LED light-emitting bodies 3 of the first type sub-display unit 11, and half holes 31 are also symmetrically and evenly spaced on both sides between every two adjacent LED light-emitting bodies 3 of the second type sub-display unit 12.

[0067] In this embodiment, in the same display unit 10, half holes 31 at the same position on the adjacent sides of the first-type sub-display unit 11 and the adjacent second-type sub-display unit 12 are combined into a complete hole 30. In the LED display carrier board 1, half holes 31 at the same position on the adjacent sides of the display unit 10 are combined into a complete hole 30. This structure creates a regular array of holes on the LED display carrier board 1, which provide light transmission, ventilation, and heat dissipation.

[0068] It should be pointed out that the concepts of the first-class sub-display unit 11, the second-class sub-display unit 12, the display unit 10, the half hole 31 and the hole 30 introduced in this embodiment are for the convenience of describing the structural features of the LED display carrier board 1. Other description methods that are equivalent to those of the present utility model are still within the scope of protection of this patent.

[0069] In this embodiment, Figure 9 and Figure 10 As shown, the display unit 10 is provided with a first branch line 44 and a second branch line 45 .

[0070] The technical problem addressed by this feature is the inconsistent RGB arrangement of adjacent LED beads in existing transparent LED screens, or the requirement for multiple specifications of LED beads. These issues not only lead to poor visual effects but also complicate the production process and increase costs (at least two types of beads must be produced: A and B. Furthermore, it's very easy to mistake A for B during assembly).

[0071] In this embodiment, the first electrode pin 51, the second electrode pin 52 and the third electrode pin 53 are correspondingly provided at the position where the LED light-emitting body 3 is provided on the LED display carrier 1. The first electrode pin 51, the second electrode pin 52 and the third electrode pin 53 are used to fix and electrically connect the LED light-emitting body 3.

[0072] In this embodiment, one end of the first branch line 44 is electrically connected to the second electrode pin 52 on the first-type sub-display unit 11, and the other end is electrically connected to the GND line 42 on the back of the adjacent second-type sub-display unit 12 through a via 55. The second branch line 45 is electrically connected to the first electrode pin 51 on the second-type sub-display unit 12, and the other end is electrically connected to the VDD power supply line 41 on the back of the adjacent first-type sub-display unit 12 through a via 55. The third electrode pin 53 is electrically connected to the data signal line 43 under the corresponding LED light-emitting element 3.

[0073] In this way, in the case of LED light-emitting bodies 3 (LED lamp beads) of the same specifications, each LED light-emitting body 3 can be connected to the VDD power supply line 41, the GND line 42 and the data signal line 43, thereby ensuring the color consistency of each LED light-emitting body 3 in the LED display carrier board 1.

[0074] In this embodiment, the first branch line 44 and the second branch line 45 are preferably disposed on the front side of the display unit 10 .

[0075] In this embodiment, the second electrode pin 42 corresponding to each LED light-emitting body 3 in the first type sub-display unit 11 is electrically connected to one of the first branch lines 44, or multiple adjacent LED light-emitting bodies 3 in the first type sub-display unit 11 are grouped together, and the second electrode pins 42 in the same group are electrically connected and then electrically connected to one of the first branch lines 44.

[0076] The first electrode pin 41 of each LED light-emitting body 3 in the second type sub-display unit 12 is electrically connected to one of the second branch lines 45, or multiple adjacent LED light-emitting bodies 3 in the second type sub-display unit 12 are grouped together, and the first electrode pins 41 in the same group are electrically connected and then electrically connected to one of the second branch lines 45.

[0077] In this embodiment, the following important (non-exhaustive) configurations of the first branch line 44 and the second branch line 45 are provided:

[0078] 1. The second electrode pin 42 corresponding to each LED light-emitting body 3 in the first type sub-display unit 11 is electrically connected to one of the first branch lines 44, and the first electrode pin 41 of each LED light-emitting body 3 in the second type sub-display unit 12 is electrically connected to one of the second branch lines 45.

[0079] like Figure 9 As shown, an LED light-emitting body 3 in a first type sub-display unit 11 and an LED light-emitting body 3 at a corresponding position in an adjacent second type sub-display unit 12 form a group and are connected by a branch line.

[0080] 2. Two adjacent LED luminous bodies 3 in the first type of sub-display unit 11 are grouped together, and the second electrode pins 42 in the same group are electrically connected and then electrically connected to one of the first branch lines 44. Two adjacent LED luminous bodies 3 in the second type of sub-display unit 12 are grouped together, and the first electrode pins 41 in the same group are electrically connected and then electrically connected to one of the second branch lines 45.

[0081] like Figure 10 As shown, two adjacent LED lights 3 in the first type of sub-display unit 11 are a group, and the second electrode pins 42 of the two adjacent LED lights 3 are first connected together through the third branch line 46, and then electrically connected to the first branch line 44; two adjacent LED lights 3 in the second type of sub-display unit 12 are a group, and the first electrode pins 42 of the two adjacent LED lights 3 are first connected together through the third branch line 46, and then electrically connected to the second branch line 45.

[0082] etc.

[0083] In this embodiment, the display unit 10 includes a first-type sub-display unit 11 and a second-type sub-display unit 12. Figure 1 and Figure 2 shown.

[0084] At this time, the first sub-display unit 11 and the second sub-display unit 12 are combined in a direction perpendicular to the strip direction to form the display unit 10. In the same display unit 10, the first sub-display unit 11 and the second sub-display unit 12 are integrally arranged.

[0085] In another embodiment, the display unit 10 includes two first-type sub-display units 11 and two second-type sub-display units 12. Figure 6 and Figure 7 shown.

[0086] At this time, the first sub-display units 11 and the second sub-display units 12 are alternately combined in a direction perpendicular to the strips to form the display unit 10. In the same display unit 10, the first sub-display units 11 and the second sub-display units 12 are integrally arranged.

[0087] This embodiment Figure 11 and Figure 12 As shown, one end of the display unit 10 is further provided with a power supply and communication interface 6. Specifically, one end of the display unit 10 is provided with an interface board 60, and the power supply and communication interface 6 are provided on the interface board 60. In this embodiment, the display unit 10 and the interface board 60 are preferably provided integrally. Example 2

[0088] This embodiment is a display device including embodiment 1. The display device has the advantages of simple maintenance when a fault occurs, and can avoid the waste caused by replacing the entire LED display carrier board 1, thereby achieving the technical effect of cost saving.

[0089] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. A person skilled in the art will be able to make other variations or modifications based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. An LED display carrier board with a V-cut structure, characterized in that: The LED display carrier is composed of a plurality of strip display units arranged and combined in a direction perpendicular to the strips; The display unit is composed of at least one first-type sub-display unit and one second-type sub-display unit arranged and combined in a direction perpendicular to the strip. In the same display unit, the first-type sub-display unit and the second-type sub-display unit are integrally arranged. LED illuminators are arranged at equal intervals on the front of the first type sub-display unit and the second type sub-display unit; In the same LED display carrier board, a plurality of the display units are integrally arranged, and a V-cut structure is provided between two adjacent display units.

2. The LED display carrier board according to claim 1, characterized in that: The first type of sub-display unit is provided with a data signal line on the front side and a VDD power supply line on the back side; The second type of sub-display unit has a data signal line on its front side and a GND line on its back side.

3. The LED display carrier board according to claim 2, characterized in that: Half holes are symmetrically and evenly spaced on both sides between every two adjacent LED light-emitting bodies in the first type of sub-display unit, and half holes are also symmetrically and evenly spaced on both sides between every two adjacent LED light-emitting bodies in the second type of sub-display unit; In the same display unit, the half holes at the same position on the sides where the first type of sub-display unit and the adjacent second type of sub-display unit meet are combined into a complete hole; In the LED display carrier board, the adjacent half holes at the same position on the sides of the display unit are combined into a complete hole.

4. The LED display carrier board according to claim 3, characterized in that: The display unit is provided with a first branch line and a second branch line; One end of the first branch line is electrically connected to the second electrode pin on the first type sub-display unit, and the other end is electrically connected to the GND line on the back of the adjacent second type sub-display unit through a via hole; One end of the second branch line is electrically connected to the first electrode pin on the second type sub-display unit, and the other end is electrically connected to the VDD power supply line on the back of the adjacent first type sub-display unit through a via hole.

5. The LED display carrier board according to claim 4, characterized in that: The second electrode pin corresponding to each LED light-emitting element in the first type of sub-display unit is electrically connected to one of the first branch lines, or a plurality of adjacent LED light-emitting elements in the first type of sub-display unit are grouped together, and the second electrode pins in the same group are electrically connected and then electrically connected to one of the first branch lines; The first electrode pin of each LED light-emitting body in the second type sub-display unit is electrically connected to one of the second branch lines, or multiple adjacent LED light-emitting bodies in the second type sub-display unit are grouped together, and the first electrode pins in the same group are electrically connected and then electrically connected to one of the second branch lines.

6. The LED display carrier board according to claim 5, characterized in that: The first branch line and the second branch line are both arranged on the front side of the display unit.

7. The LED display carrier board according to claim 1, wherein: The display unit includes a first-type sub-display unit and a second-type sub-display unit; The first type of sub-display units and the second type of sub-display units are combined along a direction perpendicular to the strip direction to form the display unit. In the same display unit, the first type of sub-display units and the second type of sub-display units are integrally arranged.

8. The LED display carrier board according to claim 1, wherein: The display unit includes two first-type sub-display units and two second-type sub-display units; The first type of sub-display units and the second type of sub-display units are alternately combined along a direction perpendicular to the strip direction to form the display unit. In the same display unit, the first type of sub-display units and the second type of sub-display units are integrally arranged.

9. The LED display carrier board according to claim 1, wherein: One end of the display unit is provided with a power supply and a communication interface.

10. A display device, characterized in that: The LED display carrier board comprises any one of claims 1 to 9.

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