Hollowed-out LED holographic transparent screen
Patent Information
- Application Number
- CN202522255657.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-24
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-10-24
AI Technical Summary
然而，现有透明LED显示屏仍存在以下技术不足：一方面镂空率与显示清晰度难以兼顾，传统PCB板体开孔方式容易造成灯珠分布不均，从而形成显示盲区；另一方面散热及固定结构会削弱透光效果，安装框体的存在降低了整体透明度；此外，在幕墙等特殊应用场景中，夹层玻璃设计限制了有效显示面积，并显著增加成本
1、本实用新型通过奇数行骨骼状孔与偶数行8字形孔组合设计，扩大透光面积并利用流线型孔边缘形成漫反射效应，有效抑制光晕和强反光问题，透光率可达85%以上，光线均匀柔和，显示画面清晰细腻，同时合理控制孔径保证像素密度不受影响，实现1080P高清显示效果。
Smart Images
Figure CN224841195U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of LED display technology, and in particular to a hollowed-out LED holographic transparent screen. Background Technology
[0002] LED displays are widely used in outdoor lightbox advertising, stage backdrops, and indoor video walls due to their high brightness, low power consumption, stable performance, and long lifespan. In certain specific installation environments, such as glass curtain walls and building walls, transparent screens with better light transmittance are usually selected to balance display effect and spatial transparency.
[0003] To achieve high light transmittance, existing transparent screens generally employ a cutout design; the larger the cutout area, the higher the light transmittance. However, existing transparent LED displays still suffer from the following technical shortcomings: Firstly, it is difficult to balance cutout rate with display clarity, as traditional PCB board opening methods easily lead to uneven distribution of LED beads, resulting in display blind spots; secondly, heat dissipation and fixing structures weaken the light transmittance, and the presence of the mounting frame reduces the overall transparency; furthermore, in special application scenarios such as curtain walls, the laminated glass design limits the effective display area and significantly increases costs. Summary of the Invention
[0004] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by proposing a hollow LED holographic transparent screen.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: A hollow LED holographic transparent screen includes a circuit board with a first irregular hole and a second irregular hole. LED beads mounted on the circuit board are evenly distributed between the first irregular hole and the second irregular hole. Both the first irregular hole and the second irregular hole adopt a hollow design.
[0006] The circuit board is made of FR4 substrate and is produced by etching process. The LED beads are directly bonded to the edge of the first or second irregular hole using flip chip technology.
[0007] The LED beads employ PWM intelligent dimming technology to reduce their own power consumption.
[0008] The spacing between adjacent holes of the first or second irregular hole is controlled between 1.5 and 2 mm to achieve a balance between pixel density and transparency.
[0009] The first and second irregular holes are arranged in a vertically staggered manner with an inclination angle of 0.3° to eliminate moiré pattern interference.
[0010] The first irregular hole is distributed in an odd number of rows on the circuit board and adopts a skeletal opening that is narrow in the middle and wide at both ends to increase the light transmission area. The second irregular hole is distributed in an even number of rows on the circuit board and adopts an 8-shaped design to enhance the mechanical support strength and improve the wind pressure resistance.
[0011] It also includes a control box and a display module, which are designed separately and connected by a waterproof wiring harness.
[0012] Compared with the prior art, the advantages of this utility model are: 1. This utility model uses a combination of odd-numbered rows of skeletal holes and even-numbered rows of figure-eight holes to expand the light-transmitting area and utilizes the streamlined hole edges to form a diffuse reflection effect, effectively suppressing halo and strong reflection problems. The light transmittance can reach more than 85%, the light is uniform and soft, and the display picture is clear and delicate. At the same time, the aperture is reasonably controlled to ensure that the pixel density is not affected, achieving a 1080P high-definition display effect.
[0013] 2. The figure-eight hole in this utility model adopts a double-ring staggered force-bearing structure. Through nano-beveling, a mechanical arch bridge effect is formed, enabling the panel to have a wind pressure resistance of 9.8kPa with a thickness of only 3.2mm, which is about 20% higher than the traditional round hole structure. This hole shape can effectively disperse external force impact and improve the overall structural deformation resistance and seismic performance, making it suitable for various high-intensity indoor and outdoor scenarios.
[0014] 3. This utility model adopts the golden ratio aperture spacing and 0.3° tilt angle staggered arrangement, which effectively reduces moiré interference. The measured contrast ratio is controlled below 1.2%, which meets the ISO 13406-2 standard. The high-density aperture array and reasonable arrangement increase the refresh rate to 3840Hz, eliminate the flicker phenomenon under high-speed photography, and improve the LED luminous efficiency and brightness uniformity through the light guide column structure.
[0015] 4. The irregular hollow structure in this utility model reduces the amount of LED beads used and the material cost, and the overall power consumption is reduced by about 25%. Combined with PWM intelligent dimming technology, the power consumption per unit area is as low as 180W / ㎡. While maintaining high brightness output, it achieves energy-saving operation, extends service life, and reduces maintenance costs. The lightweight aluminum alloy frame further reduces transportation and installation costs, resulting in significant economic benefits.
[0016] 5. This utility model adopts a modular splicing structure, which can realize various irregular installation methods such as plane, arc, and sphere, adapting to different building and scene requirements. The structure is lightweight and high-strength, the installation process is convenient, and it can be quickly disassembled and replaced, reducing construction time. The frame material is made of recyclable aluminum alloy, which complies with RoHS environmental protection standards, taking into account both high performance and green energy-saving concepts.
[0017] In summary, this utility model achieves a comprehensive technical effect of high light transmittance, high structural strength, high refresh rate, low power consumption, and strong adaptability through innovative hole structure and scientific arrangement. It takes into account display quality, structural safety, and environmental protection and energy-saving characteristics, and is suitable for outdoor advertising, building curtain walls, and large public display scenarios, and has significant promotion and application value. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of a hollow LED holographic transparent screen proposed in this utility model.
[0019] In the diagram: 1. Circuit board, 2. LED beads, 3. First irregular hole, 4. Second irregular hole. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0021] Reference Figure 1 A hollowed-out LED holographic transparent screen includes a circuit board 1, which is made of FR4 substrate and etched. The circuit board 1 has a first irregularly shaped hole 3 and a second irregularly shaped hole 4. LED beads 2 are evenly distributed between the first irregularly shaped hole 3 and the second irregularly shaped hole 4 and mounted on the circuit board 1. The LED beads 2 are directly bonded to the edges of the first irregularly shaped hole 3 or the second irregularly shaped hole 4 using flip-chip technology. Flip-chip technology is existing technology, and its specific workflow is not described here. The LED beads 2 employ PWM intelligent dimming technology to reduce power consumption. Both the first irregularly shaped hole 3 and the second irregularly shaped hole 4 are hollowed out. This hollow design enhances the heat dissipation of the circuit board 1 and reduces the number of LED beads 2 used. Combined with PWM intelligent dimming technology, this further reduces the overall power consumption and heat generation of the device.
[0022] The spacing between adjacent holes of the first irregular hole 3 or the second irregular hole 4 is controlled between 1.5-2mm to achieve the best balance between pixel density and transparency. The first irregular hole 3 and the second irregular hole 4 are arranged vertically in a staggered manner with a tilt angle of 0.3° to eliminate moiré interference. The first irregular hole 3 is distributed in an odd number of rows on the circuit board 1 and adopts a skeletal opening that is narrow in the middle and wide at both ends to increase the light transmission area. The streamlined contour produces a diffuse reflection effect when natural light passes through, thereby improving the light transmittance. At the same time, the specially designed tapered middle end can effectively suppress the halo phenomenon.
[0023] The second irregular hole 4 is distributed in an even number of rows on the circuit board 1 and adopts an 8-shaped design to enhance the mechanical support strength to improve wind pressure resistance. It also forms a mechanical arch bridge effect through nano-level chamfering. Furthermore, the intersection of the second irregular hole 4 is equipped with a micro light guide column to directionally enhance the light output efficiency of the LED.
[0024] This device is also equipped with a control box, which is designed separately from the display module and connected by a waterproof wiring harness. It supports various installation methods such as wall mounting and ceiling mounting.
[0025] In use, this invention first employs an etching process to form a hollow circuit board 1 on an FR4 substrate, thereby forming a first irregular hole 3 arranged in odd-numbered rows and a second irregular hole 4 distributed in even-numbered rows. Then, LED beads 2 are directly bonded to the edge of the first irregular hole 3 or the second irregular hole 4 using flip-chip technology, and the LED beads 2 are adjusted using PWM intelligent dimming technology. Finally, the control box and the display module are designed separately, and the two are connected by a waterproof wiring harness. The control box is installed in a suitable position by wall mounting or hanging.
[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A hollow LED holographic transparent screen, comprising a circuit board (1), characterized in that, The circuit board (1) has a first irregular hole (3) and a second irregular hole (4). LED beads (2) installed on the circuit board (1) are evenly distributed between the first irregular hole (3) and the second irregular hole (4). The first irregular hole (3) and the second irregular hole (4) are both hollowed out.
2. The hollowed-out LED holographic transparent screen according to claim 1, characterized in that, The circuit board (1) is made of FR4 substrate and is produced by etching process. The LED beads (2) are directly die bonded to the edge of the first irregular hole (3) or the second irregular hole (4) using flip chip technology.
3. The hollowed-out LED holographic transparent screen according to claim 2, characterized in that, The LED beads (2) adopt PWM intelligent dimming technology to reduce their own power consumption.
4. The hollowed-out LED holographic transparent screen according to claim 1, characterized in that, The spacing between adjacent holes of the first irregular hole (3) or the second irregular hole (4) is controlled between 1.5-2mm to achieve a balance between pixel density and transparency.
5. The hollowed-out LED holographic transparent screen according to claim 4, characterized in that, The first irregular hole (3) and the second irregular hole (4) are arranged vertically in a staggered manner with an inclination angle of 0.3° to eliminate moiré pattern interference.
6. The hollowed-out LED holographic transparent screen according to claim 5, characterized in that, The first irregular hole (3) is distributed in an odd number of rows on the circuit board (1) and adopts a bone-like opening that is narrow in the middle and wide at both ends to increase the light transmission area. The second irregular hole (4) is distributed in an even number of rows on the circuit board (1) and adopts an 8-shaped design to enhance the mechanical support strength and improve the wind pressure resistance.
7. The hollowed-out LED holographic transparent screen according to claim 1, characterized in that, It also includes a control box and a display module, which are designed separately and connected by a waterproof wiring harness.