In recent years, topics related to “transparent displays” have frequently dominated the news. The trend for transparent displays lighter, more transparent and thinner has spawned a series of innovative products, leading the way for smart displays. transparent displays are rapidly gaining popularity in applications ranging from outdoor fixed installations to large indoor displays, commercial advertising, smart displays, in-vehicle displays, and stage design.
As representative products of transparent displays, various types of transparent displays are gaining popularity in the market. What are the differences between them? We'll explain them today.
Concepts and principles of 6 transparent displays
LED Grid Screen
This outdoor LED display features a hollow structure with a grid-like arrangement that allows light to pass through. It's an optimized version of a light strip display. By improving the SMD process, LEDs, and hollow design, it reduces structural obstructions to vision, thus enhancing the perspective effect.
The LED strips are arranged in a grid pattern, leaving gaps for light to pass through. The high brightness (5000-8000 cd/㎡) ensures visibility over long distances.
Holographic LED Screen
The invisible holographic LED screen is an innovative product based on LED technology and optical principles. It uses specially designed transparent LED screen elements in a sophisticated grid pattern. By precisely controlling light propagation and reflection, it achieves a perfect balance between transparency and visual quality. Light penetrates the screen, virtually obscuring the background. This allows for dynamic images while maintaining a high degree of background transparency.
Glass LED
This is a new type of display device that incorporates LED light beads embedded in a tempered glass substrate, combining high light transmittance with dynamic display capabilities. The display size is flexible, ranging from 480×256, and supports seamless splicing to meet various specifications.
Adhesive LED Transparent Film Screen
Adhesive LED transparent film screens use specialized chips with LED lights mounted on a highly transparent printed circuit board (PCB). Through a unique bonding process, the display module is integrated into a highly transparent optical lens-like substrate that illuminates the screen. Although they are slightly flexible, their flexibility is somewhat limited.
LED films
LED films, also known as Jelly Screens, utilize LED chip implantation technology. The light panel is constructed from a transparent crystal film with a transparent mesh circuit etched into the surface. After the components are assembled onto the surface, a vacuum sealing process is applied, resulting in a flexible, transparent screen.
3D Holographic Fan
A holographic fan is a display technology that uses high-speed rotating LED blades (or arrays of LED strips) to create suspended 3D images or dynamic holographic effects in mid-air through the persistence of vision (POV) effect. The basic principle is to precisely control the on and off timing of the rotating LED spheres, creating a continuous visual effect, thus providing a hologram-like display.
The differences between LED Grid Screen, Holographic LED Screen, Glass LED, Adhesive LED Transparent Film Screen, LED Films and 3D Holographic Fan
About display effects
THE LED Grid Screen features distinct pixel details, making it suitable for long-distance viewing. It also has high brightness (5,000-8,000 cd/m²).
THE Holographic LED Screen Invisible offers a detailed and realistic image, even at high levels of transparency, with rich color saturation. It also supports 3D effects, providing viewers with an immersive visual experience. When the screen is not needed, it can be transparent, maintaining the visual quality of the surrounding environment.
To the Glass LED They offer exceptionally vivid and realistic colors, accurately reproducing vibrant reds, deep blues, and elegant greens. Color transitions are smooth and natural, with no noticeable gradation, creating an immersive visual experience. Optoelectronic glass displays typically have a high level of brightness, allowing them to display content clearly, even in bright sunlight, without blur or distortion caused by light interference.
The display effect of Adhesive LED Transparent Film Screen It mainly depends on its resolution and brightness. High-resolution, high-brightness film screens can produce sharper, brighter images.
To the LED films utilize laser-etched circuitry to better control line width, ensuring consistent impedance and brightness across each LED chip, resulting in uniform brightness across the screen.
Compared to traditional two-dimensional screens, 3D Holographic Fan Fan-shaped displays offer realistic, three-dimensional images. When playing 3D or holographic videos, they create a strong three-dimensional effect, making the screen more vivid and impactful.
Regarding transparency
To the LED Grid Screen have a transparency of 60% to 80%, featuring an openwork design for excellent light transmission.
To the Holographic LED Screen Invisible lenses have over 80% of transparency, with some products having over 90% of transparency when viewed directly. Transparency remains above 50% even during video playback.
To the Glass LED have a transparency of 70% to 85%, preserving the natural light transmission of the glass.
Although the Adhesive LED Transparent Film Screen also have relatively high transparency, it is slightly lower than that of crystal film screens and holographic fan screens, typically ranging from 70% to 95%.
To the LED films They offer very high transparency, as sharp as crystal, with a transparency of up to 95%. When mounted on a glass surface, they can practically make the screen invisible.
To the 3D Holographic Fan have a transparency of ≥80% when viewed from both sides and a light transmittance of ≥90%. Holographic fans maintain a clear and transparent background when displaying 3D images, enhancing the viewer's immersive experience.
About common models
The common models of LED Grid Screen include P2.6, P3.9, P6.25, P8, P10 and P16 (with larger step).
The common models of Holographic LED Screen include P3.91, P6.25, P7.81 and P10.4.
The common models of Glass LED include P5, P8, P10, P16, P20, P30 and P40.
The common models of Adhesive LED Transparent Film Screen include P6.5, P10, P16 and P20.
The common models of LED films include P6.5, P4-8, P8, P10, P16 and P20.
The common models of 3D Holographic Fan range from 9 cm to 200 cm in blade length, with models of 2, 4, 6 and 8 blades.
About flexibility and agility
Screen flexibility LED Grid Screen: Rigid, non-folding structure
To the Holographic LED Screen are bendable, allowing curved installations with R > 600 mm, accommodating creative applications such as curved corner screens, cylindrical surfaces and S-shaped internal and external curves.
To the Glass LED are rigid and non-bendable.
To the Adhesive LED Transparent Film Screen have a certain degree of flexibility and can be bent to a certain extent, but the degree of curvature is relatively limited.
To the LED films They use a flexible substrate, making them thinner and lighter than other transparent screens. Crystal film screens can be rolled and folded like a roll, making them easy to transport.
THE 3D Holographic Fan itself cannot be bent, but it can form a curved 3D effect by projecting the playback material or combining multiple holographic fans to form a curved effect.
Regarding weight:
To the LED Grid Screen are moderately priced, approximately 8 to 15 kg/㎡.
To the Holographic LED Screen are lightweight: the screen itself weighs only 2 to 5 kg/㎡.
To the Glass LED are heavier, weighing 20 to 30 kg/㎡, including glass.
To the Adhesive LED Transparent Film Screen weigh approximately 2 to 4 kg/㎡.
To the LED films and the 3D Holographic Fan are relatively light compared to the Adhesive LED Transparent Film Screen, generally weighing less than 2 kg/㎡.
Application Scenarios
LED Grid Screen They are commonly used on building facades, shopping mall windows and stage backdrops.
Holographic LED Screen Invisible curtains are used in commercial displays, entertainment shows and architectural curtain walls.
Glass LED are used in curtain walls of high-end buildings and hotel lobbies.
Adhesive LED Transparent Film Screen They are used in glass complexes for outdoor areas, shop windows, brand stores, large shopping malls and glass walkways.
LED films offer great flexibility and are widely used in outdoor advertising, interior decoration and architectural curtain walls.
3D Holographic Fan for fans can create a 3D effect and are widely used in commercial advertising, exhibitions, concerts and sporting events.
Maintenance of Transparent Displays
Regular maintenance is essential to ensure stable operation and excellent display quality of transparent screens. The following points should be observed:
Keep it clean: Excessive dust buildup can affect heat dissipation, leading to screen overheating, damage to LEDs, and shortened lifespan. Therefore, dust should be removed immediately.
Keep it dry: Although the transparent LED screens are relatively waterproof, they should be kept away from water, dust and metal materials as much as possible to prevent them from affecting their performance and creating safety hazards.
Keep current and voltage stable: Sudden changes in current and voltage can significantly impact the display and reduce its lifespan. Therefore, they should be kept as stable as possible.
Adjust brightness appropriately: Screen brightness can be adjusted based on the environment. Brightness requirements vary between day and night. Adjusting brightness appropriately not only saves energy but also extends the lifespan of the screen.
Avoid prolonged use of high-brightness images: Avoid displaying bright images (such as bright red, bright yellow, or bright green) for extended periods. This can cause excessive current flow, damage the LEDs, and shorten their lifespan.
Adequate rest: Transparent LED screens They have a relatively long lifespan, but environmental factors such as high temperatures and excessive dust can affect their lifespan. It is recommended to let the LED screen rest for a period of time each day before turning it on again.
Avoid harsh environments: Avoid using the screen in harsh environments. Ensure proper grounding during installation.
Based on different application requirements, the following selection recommendations are provided for your reference.
1. Seeking Transparency: Choice 3D Holographic Fan or Glass LED.
2. Requires flexible installation: LED films or Adhesive LED Transparent Film Screen are preferable.
3. Low cost and fast implementation: Adhesive LED Transparent Film Screen or LED Grid Screen are more suitable.
4. Cutting-edge architectural integration: Glass LED or LED films are the best options.
5. High brightness requirements in outdoor environments (e.g. building facades/squares): LED Grid Screen.
6. Integration with commercial glass curtain wall (e.g. shopping malls/office buildings): LED Grid Screen or Glass LED.
7. Creative displays and technological scenarios (e.g. exhibition halls/stages): Holographic LED Screen.
8. Curved/specially shaped edge structures (e.g. art installations): LED films.
9. Demand a suspended 3D effect: choose 3D Holographic Ventilator.
