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In today’s competitive business environment, outdoor displays serve as crucial tools for advertising and information communicating, and their performance and efficiency are essential for business success. In this article, Chainzone will delve into one advanced LED display technology—LOB technology—and reveal its unique advantages in enhancing outdoor display performance, energy efficiency, and durability.
By understanding the principles and applications of LOB technology, you will be able to better evaluate its value in outdoor screen procurement, thereby choosing the most efficient, reliable, and economical LED display solution.
Explain LED Display Technology: What is LOB Technology?
LOB is a type of LED screen technology that incorporates a specially designed optical lens on the SMD surface of the display screen, consisting of a long light guide rod and a front lens.
The cross-section of the light guide rod covers the SMD emitting surface to ensure maximum luminous flux. After optical polishing, light is transmitted with minimal loss through the light guide rod to the front lens, which completes secondary light distribution.
This process controls the cone-shaped emission angle of the SMD within a set range, optimizes light distribution within the viewing angle, and enhances brightness. LOB technology also designs the polarizing structure according to the display’s installation scenario to reduce light in non-display areas.
How LOB Technology Enhances Display Performance
1. Brightness
With LOB technology, the lens design allows light to reflect multiple times within the light guide rod and then be focused into a narrower angle through the front lens. Compared to other manufacturing processes, this LED display technology can increase brightness within the viewing angle by several times under the same power consumption.
2. Contrast
The primary external light source for outdoor displays is sunlight. Generally, optical lenses have an “optical magnification” characteristic. Therefore, LED displays without specially designed lenses typically have poor contrast under sunlight.
LOB display mitigates this by adjusting the optical lens surface and preventing sunlight from entering the light guide rod, thereby significantly optimizing the LED screen’s contrast.
Additionally, the contrast layer on the module surface is designed with small pits that help create shadows. When side light hits the contrast layer, the edges of these pits block light from entering the pits’ interior space, creating shadows that deepen the overall color of the contrast layer, resulting in higher contrast for the LED module.
3. Viewing Angle
LOB technology can change the angle configuration to suit different application scenarios. By adjusting the surface shape of the front lens, this LED display technology refracts the light within the light guide rod to better match the specific application.
For example, at a busy intersection, the primary audience for the outdoor LED screen is pedestrians and vehicles on the opposite side of the road. In this case, the lens can reduce the upward light emission and focus the viewing angle on the specific section, enhancing display quality while minimizing interference with adjacent areas.
In contrast, in a football stadium, where advertising boards are placed on the ground and the audience is seated at a higher elevation, LOB technology can deflect light that would otherwise be directed towards the ground upwards, improving the effective utilization of light.
How LOB Technology Impacts the Power Consumption of LED Screens
The module using LOB technology can project all the light emitted by the LEDs within the visible range, so it only needs a small LED drive current to achieve the required brightness.
With LOB technology, the output light intensity can reach up to 15 times that of bare LEDs. It means that under the same brightness level, LED power consumption can be reduced by 80%. This LED display technology significantly lowers electricity costs for 24/7 displays, offering substantial commercial value to operators.
How LOB Technology Impacts the Durability and Reliability of LED Screens
1. Heat Generation and Dissipation
Low LED drive current results in reduced heat generation, addressing issues such as uneven brightness and color distortion caused by high temperatures. Reduced heat also means fewer heat sinks are required.
2. Service Life
Continuous operation in high-temperature environments can cause significant light degradation in LEDs and lead to yellowing and degradation of the encapsulating epoxy resin, resulting in LED open circuits and failure. Low drive current prevents these issues. Moreover, the lens protects LEDs from direct sunlight, reducing damage from ultraviolet rays.
Avoid the direct sunlight on the LEDs with LOB protection
3. Protection Level
The high-magnification lens requires very low drive currents, and the display screen may not even need a heat dissipation fan. This can significantly enhance dust and water resistance up to an IP67 rating.
4. Safety
The lens material is made of high-quality PC with a light transmittance of up to 88%, fire resistance, UV resistance, excellent toughness, and impact resistance, which can ensure the safe and healthy operation of the display module.
How LOB Technology Impacts the Installation and Maintenance Needs
LED panel screens fix the lenses and mounting bracket together onto the display cabinet, with the LED drive board installed on the bracket. The display cabinet is waterproof and dustproof, and maintenance only requires replacing the LED drive board without disassembling the lens. This preserves the cabinet’s sealing condition and reduces maintenance costs.
LOB modules feature an independent, modular design for easy maintenance. The lens and its protective layer are integrated with the LED drive board within the module. The module is dustproof and waterproof, convenient for storage and maintenance. Further, the module also employs a quick-release structure, making installation and maintenance more convenient.
Conclusion
In summary, LOB technology accurately gathers source light to the target viewing angle through specially designed lenses. This helps meet the requirements of high brightness, high contrast, low energy consumption, etc., and its reliability and ease of use can also reduce operating and maintenance costs for you.
If you are interested in LOB screens, please contact Chainzone for a high-quality LED screen solution. We master different LED display technologies and have more than 100 patents. You can trust our high-performance smart LED display screens and professional services.
