Double-sided LED display device

Abstract

The utility model discloses a double-sided LED display device which comprises a first layer of LED support plate and a second layer of LED support plate, LED luminous bodies are evenly arranged on the front faces of the first layer of LED support plate and the second layer of LED support plate, the back faces of the first layer of LED support plate and the second layer of LED support plate are arranged together in an attached mode, the double-sided LED display device comprises double layers of LED support plates, each layer of LED support plate is very thin, and the double-sided LED display device is convenient to use. The finished double-sided LED display device is a thin LED display screen, and on the basis, the through holes are regularly formed in the LED carrier plate, so that the double-sided LED display device can achieve a transparent or semitransparent visual effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of LED display technical field, in particular to a double-sided LED display device. BACKGROUND

[0002] The utility model relates to the LED display device (non-mobile phone tablet oled display) of big screen, such as the advertising screen of public place such as shopping mall, airport etc..Such conventional LED display technology is very mature in industry, and the existing trend is how to make LED display device as thin as possible, even can reach transparent or semi-transparent visual effect.

[0003] Patent CN114863868A discloses a kind of LED display carrier plate, this LED display carrier plate is set on the regular through hole of PCB, non-through hole area array sets up LED light emitter to form a kind of transparent display device, product is very light and thin and permeable, can reach transparent display visual effect.But patent CN114863868A can only realize single-sided display.

[0004] Many occasions have the demand of double-sided display, such as the huge display equipment hoisted in airport hall, passenger facing playing surface can see flight information, passenger on the other side wants to read flight information needs to move to playing surface, so as to cause congestion by personnel gathering, if passenger on the other side does not move can also see flight information, which is very beneficial to passenger travel and airport management etc. UTILITY MODEL CONTENT

[0005] In view of the above deficiencies of prior art, the utility model discloses a double-sided LED display device, and the technical scheme of the utility model is as follows:

[0006] A double-sided LED display device, comprising a first layer LED carrier plate and a second layer LED carrier plate, the front surface of the first layer LED carrier plate and the second layer LED carrier plate is uniformly provided with LED light emitter, and the back surface of the first layer LED carrier plate and the second layer LED carrier plate is attached together.

[0007] Further, the first layer LED carrier plate is provided with regularly distributed first through holes, and the second layer LED carrier plate is provided with second through holes regularly distributed in accordance with the first through holes. When the first layer LED carrier plate and the second layer LED carrier plate are attached together, the first through holes and the second through holes at the corresponding positions coincide.

[0008] In the technical solution, at least one side of the first layer LED carrier plate and the second layer LED carrier plate is a tooth-shaped side structure composed of half holes, and at least one side of the double-sided LED display device formed by the first layer LED carrier plate and the second layer LED carrier plate is also a tooth-shaped side structure composed of half holes.

[0009] In the technical solution, the double-sided LED display device further comprises a support layer, and the support layer is arranged between the first layer LED carrier plate and the second layer LED carrier plate.

[0010] Further, the double-sided LED display device further comprises a support layer, and the support layer is arranged between the first layer LED carrier plate and the second layer LED carrier plate.

[0011] Further, the support layer is provided with regularly distributed third through holes, and when the support layer is arranged between the first layer LED carrier plate and the second layer LED carrier plate, the third through holes at the corresponding positions coincide with the first through holes and the second through holes.

[0012] In the technical solution, at least one side of the support layer is a tooth-shaped side structure composed of half holes.

[0013] In a further technical solution, the first layer LED carrier plate is composed of a plurality of sub-first layer LED carrier plates spliced together, and a first splicing joint is formed between adjacent sub-first layer LED carrier plates; the second layer LED carrier plate is composed of a plurality of sub-second layer LED carrier plates spliced together, and a second splicing joint is formed between adjacent sub-second layer LED carrier plates, and the first splicing joint is aligned with the second splicing joint.

[0014] Further, the support layer is composed of at least one sub-support layer spliced together.

[0015] When the support layer comprises one sub-support layer, the sub-support layer is directly arranged between the first layer LED carrier plate composed of a plurality of sub-first layer LED carrier plates spliced together and the second layer LED carrier plate composed of a plurality of sub-second layer LED carrier plates spliced together.

[0016] When the support layer comprises a plurality of sub-support layers, the support layer is composed of a plurality of sub-support layers spliced together, and a third splicing joint is formed between adjacent sub-support layers; when the sub-support layers are arranged between the first layer LED carrier plate and the second layer LED carrier plate, the third splicing joint is arranged staggered with the first splicing joint and the second splicing joint.

[0017] In the technical solution, an insulating layer is arranged between the support layer and the first layer LED carrier plate and the second layer LED carrier plate.

[0018] In one technical solution, the support layer is made of transparent material.

[0019] In another alternative technical solution, the support layer is made of one of stainless steel, copper, alloy, carbon fiber or polyurethane fiber.

[0020] The utility model discloses a double -sided LED display device contains double -deck LED carrier plate, in this technical scheme, every layer LED carrier plate is very thin, and the finished product's double -sided LED display device is the LED display screen of thin type relative big deputy, and on the basis, LED carrier plate still regularly is provided with through -hole, and the double -sided LED display device can reach transparent or translucent visual effect. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the structure schematic drawing of first layer LED carrier plate in the double -sided LED display device of the utility model,

[0022] Figure 2 It is the structure schematic drawing of second layer LED carrier plate in the double -sided LED display device of the utility model,

[0023] Figure 3 It is the structure schematic drawing of one embodiment of support layer in the double -sided LED display device of the utility model,

[0024] Figure 4 It is the structure schematic drawing of another embodiment of support layer in the double -sided LED display device of the utility model,

[0025] Figure 5 It is the side view of one embodiment structure of the double -sided LED display device of the utility model,

[0026] Figure 6 It is Figure 5 It is the side view of the first layer LED carrier plate, second layer LED carrier plate schematic drawing and support layer in a double -sided LED display device embodiment and be combined together,

[0027] Figure 7 It is the side view of another embodiment structure of the double -sided LED display device of the utility model,

[0028] Figure 8 It is Figure 7 It is the side view of the first layer LED carrier plate, second layer LED carrier plate schematic drawing and support layer in a double -sided LED display device embodiment and be combined together,

[0029] Figure 9 It is the side view of one embodiment structure of the first layer LED carrier plate, second layer LED carrier plate and sub -support layer in the double -sided LED display device of the utility model,

[0030] Figure 10It is another embodiment structure side view of a double-sided LED display device sub-first layer LED carrier plate, a sub-second layer LED carrier plate and a sub-supporting layer. DETAILED DESCRIPTION

[0031] The utility model makes further detailed instructions below combining the drawings.

[0032] In order to better illustrate the embodiment, some components of the drawings can be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, the omission of some well-known structures and their description in the drawings is understandable. The same or similar reference numbers correspond to the same or similar components.

[0033] The utility model solves the technical problem that thin LED display device realizes double-sided display, and patent CN114863868A discloses a kind of LED carrier plate, and the thickness of carrier plate is about 0.5mm, LED carrier plate one side is provided with patch type LED light emitting chip, the other side is not provided with any component.The LED display device formed by the LED carrier plate disclosed in CN114863868A will be very thin, and how to realize double-sided display under this thin product is the technical problem that the person skilled in the art needs to solve.

[0034] The embodiment of the utility model is as follows:

[0035] The embodiment is as follows: Figure 1 As shown in Figure 2 A double-sided LED display device, comprising a first layer LED carrier plate 10 and a second layer LED carrier plate 20, the front surface of the first layer LED carrier plate 10 and the second layer LED carrier plate 20 is uniformly provided with LED light emitting body 40, and the back surface of the first layer LED carrier plate 10 and the second layer LED carrier plate 20 is attached together.

[0036] The LED light emitting body 40 in the embodiment is preferably a patch type LED light emitting chip, which comprises R color light emitting chip (red light emitting chip), G color light emitting chip (green light emitting chip) and B color light emitting chip (blue light emitting chip).

[0037] In the embodiment, the first layer LED carrier plate 10 is provided with regularly distributed first through holes 12, and the second layer LED carrier plate 20 is provided with second through holes 22 regularly distributed in the same way as the first through holes 12. When the first layer LED carrier plate 10 and the second layer LED carrier plate 20 are attached together, the first through holes 12 and the second through holes 22 at the corresponding positions coincide.

[0038] The technical effect to be achieved in this embodiment is that when the first LED carrier 10 and the second LED carrier 20 are bonded together, the first through hole 12 and the second through hole 22 at corresponding positions can be merged into a single through hole. Figure 8 The first through hole 12, the second through hole 22 and the third through hole 32 (the through hole on the support layer, which will be described below) overlap to form a through hole that penetrates the double-sided LED display device.

[0039] For the first through hole 12 and the second through hole 22 at corresponding positions to merge into a single through hole, the specifications of the first through hole 12 and the second through hole 22 must be identical. Therefore, the preferred embodiment is that the specifications of the first through hole 12 and the second through hole 22 are identical, including shape and size. It should be noted that if the specifications of the first through hole 12 and the second through hole 22 are inconsistent, but they can still overlap to form a single through hole, and this through hole can achieve a transparent or semi-transparent visual effect, this solution is also within the protection scope of this utility model.

[0040] This implementation example Figure 1 and Figure 2 As shown, at least one side of the first LED carrier 10 and the second LED carrier 20 is a toothed edge structure 60 composed of semi-perforations 50. In this embodiment, the double-sided LED display device formed by the first LED carrier 10 and the second LED carrier 20 also has at least one side that is a toothed edge structure 60 composed of semi-perforations 50.

[0041] The toothed edge structure 60 of the double-sided LED display device is formed by aligning and bonding the toothed edge structure 60 of the first LED carrier plate 10 and the second LED carrier plate 20 together.

[0042] When multiple double-sided LED display devices are spliced ​​together to form a larger double-sided LED display device, or when multiple first-layer LED carrier boards 10 and second-layer LED carrier boards 20 are spliced ​​together to form a larger LED carrier board, the splicing edges with toothed edge structures are spliced ​​together, and adjacent half-holes 50 form a complete through hole, resulting in a seamless splicing effect at the splicing point. It should be noted that the double-sided LED display device, or the first-layer LED carrier board 10 and the second-layer LED carrier board 20, can be seamlessly spliced ​​not only in the width direction, but also in the length direction.

[0043] This implementation example Figures 3 to 10 As shown, the double-sided LED display device further includes a support layer 30, which is disposed between the first LED carrier plate 10 and the second LED carrier plate 20.

[0044] The first layer LED carrier board 10 and the second layer LED carrier board 20 are commonly PCB boards, with a thickness of about 0.5 mm, and a length of 1.5 m and a width of 25 cm. The width can be an integer multiple of 25 cm, and the seamless splicing effect can be achieved due to the presence of the tooth-shaped edge structure 60. It should be noted that the wiring direction is the length direction of the LED carrier board, and a single LED carrier board is an independent power supply system, and multiple LED carrier boards in the width direction do not need to be electrically connected.

[0045] In the length direction, if a longer double-sided LED display device is needed, the first layer LED carrier board 10 and the second layer LED carrier board 20 need to be spliced in the length direction. Due to the presence of the tooth-shaped edge structure 60, the seamless splicing effect can also be achieved. However, it should be noted that the first layer LED carrier board 10 and the second layer LED carrier board 20 are very thin and lack strength, and the longer the length, the easier it is to break under its own gravity. Moreover, it is too flexible and easy to deform under external force. For these reasons, a support layer needs to be added.

[0046] In an embodiment, the support layer 30 is transparent, such as glass, acrylic, etc. At this time, the third through hole does not need to be provided on the support layer 30, and the transparent or semi-transparent visual effect can be achieved, as shown in Figure 3 , Figure 5 and Figure 6 , wherein Figure 5 and Figure 6 are side views of the double-sided LED display device. As can be seen from the figure, the support layer 30 in the middle layer is a whole plate without holes.

[0047] In another embodiment, the support layer 30 is made of one of stainless steel, copper, alloy, carbon fiber or polyurethane fiber.

[0048] In this embodiment, to achieve the transparent or semi-transparent visual effect, regularly distributed third through holes 32 need to be provided on the support layer 30, as shown in Figure 4 , Figure 7 and Figure 8 .

[0049] In this embodiment, when the support layer 30 is arranged between the first layer LED carrier board 10 and the second layer LED carrier board 20, the third through holes 32 at the corresponding positions coincide with the first through holes 12 and the second through holes 22. Specifically, as shown in Figure 8 , the first through holes 12, the second through holes 22 and the third through holes 32 coincide and are stacked together to form a through hole through the double-sided LED display device. It should be noted that in the preferred embodiment, the specifications of the first through holes 12, the second through holes 22 and the third through holes 32 are consistent.

[0050] In this embodiment, as shown in Figure 4 the support layer 30 has at least one edge being a tooth-shaped edge structure 60 composed of half-holes 50. The tooth-shaped edge structure on the support layer 30 and the tooth-shaped edge structures of the first layer LED carrier plate 10 and the second layer LED carrier plate 20 are aligned and overlapped together to form the tooth-shaped edge structure of the double-sided LED display device.

[0051] In this embodiment, when the support layer 30 is a metal plate, an insulating layer needs to be arranged between the first layer LED carrier plate 10 and the second layer LED carrier plate 20.

[0052] In this embodiment, the front surface of the first layer LED carrier plate 10 and the second layer LED carrier plate 20 is provided with LED light emitters, and the back surface is provided with power supply lines (including VDD and GND) along the length direction of the LED carrier plate. The power supply lines and the support layer 30 need to be provided with insulating layers.

[0053] In another implementable embodiment, as shown in Figure 9 and Figure 10 the first layer LED carrier plate 10 is composed of a plurality of sub-first layer LED carrier plates 11, and a first splicing seam 13 is formed between adjacent sub-first layer LED carrier plates 11; the second layer LED carrier plate 20 is composed of a plurality of sub-second layer LED carrier plates 21, and a second splicing seam 23 is formed between adjacent sub-second layer LED carrier plates 21, and the first splicing seam 13 is aligned with the second splicing seam 23.

[0054] In actual application, due to the limitation of the production process of the PCB plate, the width of the first layer LED carrier plate 10 and the second layer LED carrier plate 20 is limited. If a larger size is required in the width direction, the first layer LED carrier plate 10 and the second layer LED carrier plate 20 need to be spliced in the width direction. The first splicing seam 13 and the second splicing seam 23 will be generated when splicing. Therefore, the first layer LED carrier plate 10 and the second layer LED carrier plate 20 are composed of corresponding sub-LED carrier plates. It should be noted that the structure of the sub-first layer LED carrier plate 11 and the sub-second layer LED carrier plate 21 is the same as that of the corresponding first layer LED carrier plate 10 and the second layer LED carrier plate 20, and this point will not be described in this embodiment.

[0055] In this embodiment, due to the arrangement of the tooth-shaped edge structure, the first splicing seam 13 and the second splicing seam 23 are seamless splicing seam effect splicing seams.

[0056] In the embodiment, the first layer LED carrier plate 10 and the second layer LED carrier plate 20 are preferably of the same size, and the sub first layer LED carrier plate 11 and the sub second layer LED carrier plate 21 are also preferably of the same size. In this way, after alignment and splicing, the first splicing seam 13 and the second splicing seam 23 are also aligned vertically.

[0057] In the embodiment, the support layer 30 is composed of at least one sub support layer 31.

[0058] It should be noted that the support layer 30 is preferably a thin stainless steel plate. In the production process of stainless steel plates, the stainless steel plate can be made very large, but there is a limit. Therefore, in some cases, the stainless steel plate needs to be spliced, especially in the width direction. In the embodiment, the sub support layer 31 has the same structure as the support layer 30.

[0059] In the embodiment, when the support layer 30 contains one sub support layer 31, the sub support layer 31 is directly arranged between the first layer LED carrier plate 10 composed of a plurality of sub first layer LED carrier plates 11 and the second layer LED carrier plate 20 composed of a plurality of sub second layer LED carrier plates 21.

[0060] In the embodiment, when the support layer 30 contains a plurality of sub support layers 31, the support layer 30 is composed of a plurality of sub support layers 31, and a third splicing seam 33 is formed between adjacent sub support layers 31. When the sub support layer 31 is arranged between the first layer LED carrier plate 10 and the second layer LED carrier plate 20, the third splicing seam 33 is arranged offset in the width direction from the first splicing seam 13 and the second splicing seam 23, as shown in Figure 9 and Figure 10 .

[0061] In the embodiment, due to the arrangement of the tooth-shaped edge structure, the third splicing seam 33 is a seamless splicing seam.

[0062] In the embodiment, the third splicing seam 33 needs to be arranged offset from the first splicing seam 13 and the second splicing seam 23. Because the first splicing seam 13 and the second splicing seam 23 are arranged vertically aligned, the sub support layer 31 needs to cover the first splicing seam 13 and the second splicing seam 23. The advantage of this arrangement is that the support layer 31 also serves to fix and connect adjacent sub first layer LED carrier plates 11 and adjacent sub second layer LED carrier plates 21 in the width direction.

[0063] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and also impossible to exhaust all the implementation modes. Any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application claims.

Claims

1. A double-sided LED display device comprising a first layer of LED carrier boards and a second layer of LED carrier boards, characterized in that, The front surface of the first layer LED carrier plate and the second layer LED carrier plate are uniformly provided with LED light emitters, and the back surfaces of the first layer LED carrier plate and the second layer LED carrier plate are attached together.

2. The double-sided LED display apparatus of claim 1, wherein, The first layer LED carrier plate is provided with regularly distributed first through holes, and the second layer LED carrier plate is provided with regularly distributed second through holes consistent with the first through holes. When the first layer LED carrier plate and the second layer LED carrier plate are attached together, the first through holes and the second through holes are arranged in a corresponding position.

3. The double-sided LED display apparatus of claim 2, wherein, At least one side of the first layer LED carrier plate and the second layer LED carrier plate is a tooth-shaped side structure composed of half holes, and at least one side of the double-sided LED display device formed by the first layer LED carrier plate and the second layer LED carrier plate is also a tooth-shaped side structure composed of half holes.

4. The double-sided LED display apparatus of claim 1, wherein, The double-sided LED display device comprises a support layer, and the support layer is arranged between the first layer LED carrier plate and the second layer LED carrier plate.

5. The double-sided LED display apparatus of claim 3, wherein, The double-sided LED display device comprises a support layer, and the support layer is arranged between the first layer LED carrier plate and the second layer LED carrier plate.

6. The double-sided LED display apparatus of claim 5, wherein, The support layer is provided with regularly distributed third through holes, and when the support layer is arranged between the first layer LED carrier plate and the second layer LED carrier plate, the third through holes are arranged in a corresponding position with the first through holes and the second through holes. At least one side of the support layer is a tooth-shaped side structure composed of half holes.

7. The double-sided LED display apparatus of claim 4 or 6, wherein, The first layer LED carrier plate is composed of a plurality of sub-first layer LED carrier plates, and a first splicing joint is formed between adjacent sub-first layer LED carrier plates. The second layer LED carrier plate is composed of a plurality of sub-second layer LED carrier plates, and a second splicing joint is formed between adjacent sub-second layer LED carrier plates. The first splicing joint is aligned with the second splicing joint.

8. The double-sided LED display apparatus of claim 7, wherein, The support layer is composed of at least one sub-support layer. When the support layer comprises one sub-support layer, the sub-support layer is directly arranged between the first layer LED carrier plate composed of a plurality of sub-first layer LED carrier plates and the second layer LED carrier plate composed of a plurality of sub-second layer LED carrier plates. When the support layer comprises a plurality of sub-support layers, the support layer is composed of a plurality of sub-support layers, and a third splicing joint is formed between adjacent sub-support layers. When the sub-support layers are arranged between the first layer LED carrier plate and the second layer LED carrier plate, the third splicing joint is arranged in a staggered manner with the first splicing joint and the second splicing joint.

9. The double-sided LED display apparatus of claim 4 or 5, wherein, An insulating layer is arranged between the support layer and the first layer LED carrier plate and the second layer LED carrier plate.

10. The double-sided LED display apparatus of claim 4, wherein, The support layer is made of transparent material.

11. The double-sided LED display apparatus of claim 6, wherein, The support layer is made of one of stainless steel, copper, alloy, carbon fiber or polyurethane fiber. The support layer is made of one of stainless steel, copper, alloy, carbon fiber or polyurethane fiber.

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