All-in-One COB LED TV 
Flexible LED Displays 
Transparent LED Displays 
Led Poster 
Circular LED Displays 
Column LED Screens 
Creative & Custom LED Displays In stage design applications, people are increasingly pursuing fashion and trends. Due to the limitations of the principle hardware, Transparent LED display inevitably have defects. At this time, the emergence of holographic 3D projection has provided a good supplement. What are the principles and characteristics of Transparent LED screen and holographic 3D projection? Which one is better? Let me briefly introduce it to you.
Holographic 3D projection technology:
The principle of holographic 3D projection is to c collect object information in a three-dimensional and all-round way, and then restore this information in a three-dimensional and three-dimensional way for the audience to see. And the most ideal medium to achieve all this and carry this three-dimensional information is air. There has always been a debate in the industry about “true holography” and “pseudo-holography”.
True holography is to display images directly in the air. In fact, at the current level of technology, all holographic imaging requires signal light sources and imaging media, but air cannot be an imaging medium because light cannot be interrupted or intercepted out of thin air.
However, using various media on the stage is now called “pseudo-holography”. The holographic projection commonly used on commercial stages can be roughly divided into two types:
- Rear projection method: the projector directly projects the image onto the holographic film;
- Using reflection to reflect the projection or LED image onto the holographic film placed at 45 degrees. The effect will be more realistic, and the cost will be higher. It is used in large-scale evening parties.
No matter which method is used, the purpose is to make the projector’s beam projected on this screen look like a transparent film from a distance, but the reflectivity is very high. The result is that people who watch from a little further away can only see the image floating in the air, and basically cannot see the transparent film base. This creates a visual illusion, as if the image is magically separated from the display medium and exists in the air.
The principle of Transparent LED screen
Transparent LED screen is actually a micro-innovation of LED bar screen. It has made targeted improvements to the patch manufacturing process, lamp bead packaging, and control system. In addition, the hollow design structure reduces the obstruction of the structural components to the line of sight and improves the transparency and lighting performance.
This display technology greatly reduces the obstruction of the structural components to the line of sight and maximizes the perspective effect. At the same time, it also has a novel and unique display effect. When the audience stands at an ideal distance to watch, the picture seems to be suspended above the glass curtain wall.
When designing the advertising content, you can remove the unnecessary background color and replaced with black, So that only the content to be expressed is displayed. When playing, the black part does not emit light, and the effect is as transparent as the picture.
What is the difference between holographic 3D projection and Transparent LED screen?
Transparent LED screens are mostly flat images, but they irreplaceable “skills” of holographic projection technology, such as high resolution, seamless splicing and other display effects, flexible and changeable appearance, and touch display. Holographic 3D projection can show three-dimensional images, and the effect is realistic and shocking.
LED display technology and holographic 3D projection technology have their own advantages and disadvantages. In fact, the combination of the two can complement each other’s advantages.
At the same time, combined with large stage equipment, multimedia sound and light, etc., the stage can be expanded to bring all-round sensory enjoyment to the audience.
| Aspect | Holographic 3D Projection | Transparent LED Screen |
|---|---|---|
| Imaging Principle | Utilizes principles of interference and diffraction to record and reproduce true three-dimensional images of objects. It can create the illusion of solid objects existing in 3D space. | An LED display with high transparency, allowing light to pass through like glass. It uses micro-innovations in strip screen technology, improvements in SMD manufacturing process, packaging, and control system, along with a hollow structure design. |
| Visual Effect | Produces a 3D effect that gives the impression of depth and solidity, creating holographic-like illusions. | Offers a unique display effect where images seem to float above the screen when viewed from an ideal distance. The screen itself is transparent, blending seamlessly with its surroundings. |
| Equipment and Materials | Typically uses specialized holographic projection film, projectors, and imaging content created specifically for holographic display. | Comprises LED displays with transparent properties, often installed behind glass curtain walls or used as standalone displays. |
| Lighting Requirements | Can be sensitive to ambient lighting, as dark environments generally enhance the holographic effect. | Works well in various lighting conditions, both indoors and outdoors, as it allows light to pass through. |
| Applications | Widely used in large-scale events, museums, exhibitions, digital displays, and interactive installations where a high level of visual immersion and realism is desired. | Applicable in areas where a blend of transparency and digital display is needed, such as building glass walls, shopping windows, architectural facades, and indoor/outdoor advertising. |
| Installation and Maintenance | Installation can be complex, requiring precise alignment of projection equipment and holographic film. Maintenance may involve regular cleaning and calibration of projection equipment. | Installation is often simpler due to the transparent nature of the screen, making it easy to integrate into existing structures. Maintenance involves standard LED display upkeep. |
| Cost | Generally more expensive due to the specialized equipment and materials required, as well as the complexity of production and installation. | Cost-effective, especially for medium to large-scale applications, as it integrates seamlessly with existing structures and offers a unique display option. |
Conclusion
As a professional LED display manufacturer, Doitvision can provide 3D transparent invisible screen, also various transparent LED screens to meet your different needs. If you are interested in this, you can feel free to contact us.
FAQs:
What is The difference between naked eye 3D and holographic projection？
The key differences between autostereoscopic 3D and holographic projection like below:
| Aspect | Autostereoscopic 3D | Holographic Projection |
|---|---|---|
| Principle | Observable without any special equipment, commonly achieved with two angled displays using LED as a light source or projection devices. | Utilizes principles of interference and diffraction to record and reproduce true three-dimensional images of objects. |
| Technology | Focuses on creating an immersive and artistic visual experience. The technology is primarily embodied in content creativity and video production. | Can be categorized into various types such as immersive holographic projection, holographic interactive multimedia projection, holographic cabinets, holographic windows, etc. It typically uses imported holographic projection film combined with projection and specialized imagery content for display. |
| Environmental Impact | Sensitive to viewing angle and distance; the best effect is seen within the optimal viewing area, while the effect may be diminished from side angles or other regions. | Less sensitive to viewing angle but has certain requirements for lighting. Dark environments enhance the effect, while bright light can detract from the viewing experience. |
| Video Source | The video source for autostereoscopic 3D needs to be produced considering factors such as screen angle and distance, requiring manual adjustments for perception of depth and distortion. | The video source for holographic projection cannot be played using regular video sources; it must be specially created content. |
| Application Areas | Commonly found in malls, street corners, corporate digital exhibition halls, outdoor media, and other similar locations. | Widely used in various industries such as large-scale events, entertainment, digital exhibition halls, cultural and tourist attractions, museums, science and technology museums, digital cinemas, and more. |
How much does a 3D outdoor screen cost?
Large-scale outdoor 3D billboards, such as naked-eye 3D LED screens, cost $1200 or $3000 per square meter. These billboards are usually used in large places such as business districts, squares, and stadiums.They have a high visual impact and advertising effect. You can click here for more price information.