A display module and display device

Abstract

This utility model discloses a display module and display device, belonging to the technical field of display devices. The display module includes a circuit board and multiple LED display units. The multiple LED display units are disposed on the front side of the circuit board, and the center spacing of the multiple LED display units is equal. A first connecting part is provided between the through holes of two adjacent light-transmitting components. The circuit board has at least one first edge parallel to a first direction. A second connecting part is provided between the through hole of the light-transmitting component near the first edge and the first edge. Along the second direction, the minimum width of the first connecting part is twice the minimum width of the second connecting part. When adjacent circuit boards are spliced ​​in the second direction, the second connecting parts of the two circuit boards are arranged side by side to avoid the black stripe phenomenon between the two circuit boards and improve the user's viewing experience.

Description

Technical Field

[0001] This utility model relates to the field of display device technology, and in particular to a display module and display device. Background Technology

[0002] The LED transparent screen is equipped with a large number of light-transmitting holes and LED beads. The LED beads can emit light and combine to display images. When the LED beads are turned off, users can observe the scene behind the LED transparent screen through the large number of light-transmitting holes. The installation of the LED transparent screen will not affect indoor lighting or users' viewing experience.

[0003] Existing LED transparent screens are made up of multiple display modules spliced ​​together. Each display module has a large number of light-transmitting holes. However, when the LED transparent screen is not displaying an image, users will observe a black bar between two adjacent spliced ​​display modules. The width of this black bar is greater than the distance between two adjacent LED beads, which affects the user's viewing experience. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a display module to solve the problem that black bars between adjacent display modules of the current LED transparent screen affect the viewing experience.

[0005] The objective of this utility model is achieved through the following technical solution: A display module includes a circuit board and a plurality of LED display units. The circuit board has a front side and a back side. The plurality of LED display units are disposed on the front side of the circuit board, and the center-to-center spacing of the plurality of LED display units is equal. The circuit board is provided with a plurality of light-transmitting components arranged along the second direction; The light-transmitting component includes a plurality of through holes formed on the circuit board along a first direction, the through holes extending from the front side to the back side of the circuit board, the first direction and the second direction being perpendicular to each other; A first connecting portion is provided between the through holes of two adjacent light-transmitting components. The circuit board is provided with at least one first edge parallel to the first direction. A second connecting portion is provided between the through hole of the light-transmitting component near the first edge and the first edge. Along the second direction, the minimum width of the first connecting portion is greater than the minimum width of the second connecting portion.

[0006] Preferably, along the second direction, the minimum width of the first connecting portion is 1.3 to 3 times the minimum width of the second connecting portion.

[0007] Preferably, along the second direction, the minimum width of the first connecting portion is twice the minimum width of the second connecting portion.

[0008] Preferably, the circuit board has at least one second edge parallel to the second direction, and the second edge has a splicing notch. When two adjacent circuit boards are spliced ​​at the second edge, the splicing notches on the two circuit boards are arranged opposite each other and form a complete through hole.

[0009] Preferably, the first edge is flat.

[0010] Preferably, the plurality of LED display units are arranged in multiple rows and columns, and the LED display units are disposed between two adjacent through holes.

[0011] Preferably, a plurality of LED display units are disposed between two adjacent through holes.

[0012] Preferably, the display module further includes a driver chip, which is disposed inside the LED display unit; or, The display module also includes a driver chip, which is disposed on the back of the circuit board and is electrically connected to the LED display unit.

[0013] Preferably, the circuit board includes a light-transmitting area and a control area arranged adjacent to each other. The light-transmitting area is provided with a plurality of through holes. The LED display unit located on the light-transmitting area is disposed between two adjacent through holes. The control area is provided with electronic components electrically connected to the LED display unit.

[0014] Preferably, the LED display unit is disposed on the front side of the light-transmitting area of ​​the circuit board, and the electronic components are disposed on the front side or the back side of the control area of ​​the circuit board; or, The LED display unit is located on the front side of the light-transmitting area and the control area of ​​the circuit board, and the electronic components are located on the back side of the control area of ​​the circuit board.

[0015] To achieve the same technical effect, this utility model also provides a display device, including the display module as described above.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: The display module includes a circuit board and multiple LED display units. The multiple LED display units are disposed on the front of the circuit board, and the center spacing of the multiple LED display units is equal. A first connecting part is provided between the through holes of two adjacent light-transmitting components. The circuit board has at least one first edge parallel to a first direction. A second connecting part is provided between the through hole of the light-transmitting component near the first edge and the first edge. Along the second direction, the minimum width of the first connecting part is greater than the minimum width of the second connecting part. When adjacent circuit boards are spliced ​​in the second direction, the second connecting parts of the two circuit boards are arranged side by side to avoid the black bar phenomenon between the two circuit boards and improve the user's viewing experience. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the front structure of the display module of the utility model; Figure 2 This is a schematic diagram of the rear structure of the display module of the utility model; Figure 3 for Figure 1 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the overall structure of the display device of the utility model; In the figure: 1. Display module; 10. Circuit board; 10a. Front; 10b. Back; 11. First connecting part; 12. Second connecting part; 13. Splicing notch; 14. Mounting hole; 15. First edge; 16. Second edge; 17. Light-transmitting area; 18. Control area; 20. LED display unit; 30. Light-transmitting component; 31. Through hole; 40. Electronic component; X. First direction; Y. Second direction; 100. Display device. Detailed Implementation

[0018] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0019] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0021] Example 1 Combination Figures 1 to 3 As shown, the display module 1 of this utility model is schematically displayed, including a circuit board 10 and multiple LED display units 20.

[0022] Combination Figure 1 and Figure 3 The circuit board 10 has a front side 10a and a back side 10b. The front side 10a of the circuit board 10 is provided with LED display units 20. The center-to-center spacing of the multiple LED display units 20 is equal, and the LED display units 20 emit light to display an image. The circuit board 10 is provided with multiple light-transmitting components 30 arranged along a second direction Y. Each light-transmitting component 30 includes multiple through holes 31 formed on the circuit board 10 along a first direction X. The through holes extend from the front side 10a to the back side 10b of the circuit board 10. The first direction X and the second direction Y are perpendicular. The through holes 31 of two adjacent light-transmitting components 30 are aligned in the second direction Y, so that the through holes 31 on the circuit board 10 are arranged in a matrix. The through holes 31 are used for light transmission and ventilation.

[0023] A first connecting portion 11 is provided between the through holes 31 of two adjacent light-transmitting components 30. The circuit board 10 is provided with at least one first edge 15 parallel to the first direction X. A second connecting portion 12 is provided between the through hole 31 of the light-transmitting component 30 near the first edge 15 and the first edge 15. Along the second direction Y, the minimum width of the first connecting portion 11 is greater than the minimum width of the second connecting portion 12. For example, along the second direction, the minimum width of the first connecting portion 11 is 1.3 times to 3 times the minimum width of the second connecting portion 12. For example, the minimum width of the first connecting portion 11 is 1.3 times, 1.4 times, 1.5 times, 1.8 times, 2 times, 2.5 times, 2.8 times, 3 times, etc., the minimum width of the second connecting portion 12. Preferably, the minimum width of the first connecting portion 11 is twice the minimum width of the second connecting portion 12. When two adjacent circuit boards 10 are spliced ​​along the second direction Y, the second connecting portions 12 of the two circuit boards 10 are arranged side by side. This makes the distance between the through hole 31 of the light-transmitting component 30 located on the far side of one circuit board 10 and the through hole 31 of the light-transmitting component 30 located on the far side of the other circuit board 10 approximately equal to the distance between the through holes 31 of two adjacent light-transmitting components 30 on the same circuit board 10. Visually, the two circuit boards form a circuit board with a larger area, thus avoiding the black bar phenomenon between the two circuit boards 10. When the minimum width of the first connecting portion 11 is twice the minimum width of the second connecting portion 12 along the second direction, the two second connecting portions 12 of the two circuit boards 10 are just spliced ​​to form a first connecting portion 11, resulting in the best display effect.

[0024] Preferably, there are multiple LED display units 20 arranged in a matrix on the circuit board 10. Multiple through holes 31 of the light-transmitting component 30 are alternately arranged with the multiple LED display units 20, which balances good light transmission performance and image display performance. Preferably, the first edge 15 is flat, meaning there are no notches or gaps on the first edge 15; the first edge 15 is smooth and flat.

[0025] like Figure 1 and Figure 2 Multiple LED display units 20 are arranged in multiple rows and columns, and the LED display units 20 are disposed between two adjacent through holes 31. The number of LED display units 20 between two adjacent through holes 31 can be one or more. In some optional embodiments, multiple LED display units 20 are disposed between two adjacent through holes 31, which can also take into account both good light transmission performance and screen display performance.

[0026] In one embodiment, such as Figure 3As shown, the LED display unit 20 and the two through holes 31 adjacent to the LED display unit 20 are arranged along the first direction X. It should be noted that the first direction X is the direction from the light-transmitting area 17 to the control area 18. The arrangement of the LED display unit 20 and the two through holes 31 adjacent to the LED display unit 20 along the first direction X ensures that the LED display unit 20 and the through holes 31 are distributed alternately, which not only achieves a uniform display effect by uniformly distributing the LED display unit 20, but also maximizes the light transmittance.

[0027] Furthermore, if the LED display unit 20 is placed between two adjacent through holes 31 in the second direction Y, that is, the LED display unit 20 is located on the first connecting part 11, the width of the second connecting part 12 located at the first edge 15 is only half that of the first connecting part 11. The width of the second connecting part 12 is insufficient to accommodate the LED display unit 20. When the first edges 15 of the two display modules 1 are spliced, the width of the spliced ​​second connecting parts 12 of the two circuit boards 10 is equal to that of the first connecting part 11, but there are no LED display units 20 on either of the two second connecting parts 12. This results in an opaque black strip after splicing, failing to achieve a uniform display effect. Therefore, placing the LED display unit 20 between two adjacent through holes 31 arranged along the first direction X results in a better display effect after splicing.

[0028] The circuit board 10 includes a light-transmitting area 17 and a control area 18 arranged adjacent to each other. The light-transmitting area 17 has a plurality of through holes 31. An LED display unit 20 located on the light-transmitting area 17 is disposed between two adjacent through holes 31. The control area 18 has electronic components 40 electrically connected to the LED display unit 20. The electronic components 40 include, but are not limited to, connectors, resistors, capacitors, processors, receiver cards, and adapter cards. The LED display unit 20 is disposed on the front side 10a of the light-transmitting area 17 of the circuit board 10, and the electronic components 40 are disposed on the front side 10a or the back side 10b of the control area 18 of the circuit board 10. The electronic component 40 itself has a certain height, that is, the electronic component 40 protrudes in the normal direction of the circuit board 10. By placing the electronic component 40 on the back side 10b of the circuit board 10, the front side of the circuit board 10 can be relatively flat. When the front side of the display module 1 is attached to glass or other transparent plane, the glass can be closer to the front side 10a of the circuit board 10, and the LED display unit 20 can be closer to the glass, improving the screen display effect. Similarly, if it is necessary to attach the back side of the display module 1 to the glass, the electronic component 40 is placed on the front side 10a of the control area 18.

[0029] In another embodiment, the LED display unit 20 is disposed on the front 10a of the light-transmitting area 17 and the control area 18 of the circuit board 10, and the electronic component 40 is disposed on the back 10b of the control area 18 of the circuit board 10. The multiple LED display units 20 in the control area 18 are of the same model and style as the multiple LED display units 20 in the light-transmitting area 17, and the LED display units 20 on the circuit board 10 are arranged in a matrix, which ensures the consistency of the display effect in all parts of the display module 1. This layout structure makes the display area of ​​the front 10a of the entire circuit board 10 larger.

[0030] The back surface 10b of the circuit board 10 (including the light-transmitting area 17 and / or the control area 18) is provided with multiple driver chips. The driver chips are electrically connected to the LED display unit 20. The LED display unit 20 can be an LED lamp bead, including a substrate and a plurality of LED light-emitting chips disposed on the substrate. The LED lamp bead, the driver chip, and the electronic component 40 are electrically connected. In other optional embodiments, the LED display unit 21 can also be the LED light-emitting chip itself. In addition, the driver chip can also be disposed inside the LED display unit 20, which can improve the integration of the LED display unit 20, reduce the number of components on the circuit board 10, and simplify the circuit layout.

[0031] Furthermore, the circuit board 10 is provided with at least one second edge 16 parallel to the second direction Y. The second edge 16 is provided with a splicing notch 13. The projection shape of the splicing notch 13 on the front side 10a of the circuit board 10 is half of the through hole 31. For example, when the through hole 31 is rectangular, the splicing notch 13 can be U-shaped. When the through hole 22 is circular, the splicing notch 13 is semi-circular. When two adjacent circuit boards 10 are spliced ​​at the second edge 16, the splicing notches 13 on the two circuit boards 10 are arranged opposite each other and form a complete through hole 31, making the LED transparent screen formed by splicing multiple display modules 1 more like a whole, realizing seamless splicing.

[0032] Furthermore, the through-hole 31 is preferably a rectangular hole, and the corners of the through-hole 31 are chamfered or rounded. The chamfering and rounding facilitates the design of the circuit on the circuit board 10. In other optional embodiments, the through-hole 31 can also be polygonal, circular, elliptical, or other shapes. The circuit board 10 is also provided with mounting holes 14, with at least three LED display units 20 surrounding one mounting hole 14. The mounting hole 14 is used to connect with fasteners such as screws or bolts from other devices to mount the circuit board 10.

[0033] Example 2 like Figure 4This embodiment discloses a display device 100, including multiple display modules 1 as described above. One display module 1 is spliced ​​with another display module 1 in the first direction X, such that the splicing gap 13 of the two modules is arranged opposite each other to form a complete through hole 31, resulting in stronger overall integrity. Alternatively, one display module 1 is spliced ​​with another display module 1 in the second direction Y, with the second connecting portions 12 of the two circuit boards 10 arranged side by side. This makes the distance between the through hole 31 of the light-transmitting component 30 located on the outermost side of one circuit board 10 and the through hole 31 of the light-transmitting component 30 located on the outermost side of the other circuit board 10 equal to the distance between the through holes 31 of two adjacent light-transmitting components 30 on the same circuit board 10, which can also achieve seamless splicing and avoid the black bar phenomenon between the two circuit boards 10.

[0034] In summary, the display module 1 includes a circuit board 10 and multiple LED display units 20. The multiple LED display units 20 are disposed on the front side 10a of the circuit board 10, and the center spacing of the multiple LED display units 20 is equal. A first connecting portion 11 is provided between the through holes 31 of two adjacent light-transmitting components 30. The circuit board 10 is provided with at least one first edge 15 parallel to the first direction X. A second connecting portion 12 is provided between the through hole of the light-transmitting component 30 near the first edge 15 and the first edge 15. Along the second direction Y, the minimum width of the first connecting portion 11 is twice the minimum width of the second connecting portion 12. When adjacent circuit boards 10 are spliced ​​in the second direction Y, the second connecting portions 12 of the two circuit boards 10 are arranged side by side to avoid the black bar phenomenon between the two circuit boards 10 and improve the user's viewing experience.

[0035] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A display module, characterized in that, The device includes a circuit board and multiple LED display units. The circuit board has a front side and a back side. The multiple LED display units are disposed on the front side of the circuit board, and the center-to-center spacing of the multiple LED display units is equal. The circuit board is provided with a plurality of light-transmitting components arranged along the second direction; The light-transmitting component includes a plurality of through holes formed on the circuit board along a first direction, the through holes extending from the front side to the back side of the circuit board, the first direction and the second direction being perpendicular to each other; A first connecting portion is provided between the through holes of two adjacent light-transmitting components. The circuit board is provided with at least one first edge parallel to the first direction. A second connecting portion is provided between the through hole of the light-transmitting component near the first edge and the first edge. Along the second direction, the minimum width of the first connecting portion is greater than the minimum width of the second connecting portion.

2. The display module according to claim 1, characterized in that, Along the second direction, the minimum width of the first connecting portion is 1.3 to 3 times the minimum width of the second connecting portion.

3. The display module according to claim 2, characterized in that, Along the second direction, the minimum width of the first connecting portion is twice the minimum width of the second connecting portion.

4. The display module according to claim 1, characterized in that, The circuit board has at least one second edge parallel to the second direction, and the second edge has a splicing notch. When two adjacent circuit boards are spliced ​​at the second edge, the splicing notches on the two circuit boards are arranged opposite each other and form a complete through hole.

5. The display module according to claim 1, characterized in that, The LED display units are arranged in multiple rows and columns, and the LED display units are disposed between two adjacent through holes.

6. The display module according to claim 5, characterized in that, Multiple LED display units are disposed between two adjacent through holes.

7. The display module according to claim 1, characterized in that, The display module further includes a driver chip, which is disposed inside the LED display unit; or... The display module also includes a driver chip, which is disposed on the back of the circuit board and is electrically connected to the LED display unit.

8. The display module according to any one of claims 1 to 7, characterized in that, The circuit board includes a light-transmitting area and a control area arranged adjacent to each other. The light-transmitting area is provided with a plurality of through holes. The LED display unit located on the light-transmitting area is disposed between two adjacent through holes. The control area is provided with electronic components electrically connected to the LED display unit.

9. The display module according to claim 8, characterized in that, The LED display unit is disposed on the front side of the light-transmitting area of ​​the circuit board, and the electronic components are disposed on the front side or the back side of the control area of ​​the circuit board; or, The LED display unit is located on the front side of the light-transmitting area and the control area of ​​the circuit board, and the electronic components are located on the back side of the control area of ​​the circuit board.

10. A display device, characterized in that, Includes the display module as described in any one of claims 1 to 9.

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