As the core component with the highest cost and the largest usage in LED display screens, the quality and performance of LED lamp beads have a decisive impact on the overall performance of LED display screens. This article will explore in depth the impact of LED lamp beads on the quality of LED display screens and why they are regarded as the most critical component of LED display screens.
- Viewing angle
The viewing angle of LED display screens is directly determined by the viewing angle of LED lamp beads. Outdoor display screens usually use elliptical LEDs with a horizontal viewing angle of 100° and a vertical viewing angle of 50°, while indoor display screens tend to use SMD LEDs with a horizontal and vertical viewing angle of 120°. Special occasions such as display screens on highways may only require circular LEDs with a viewing angle of 30°. The choice of viewing angle needs to be determined according to the specific application scenario, because a large viewing angle will reduce brightness, which is a trade-off. Take you to understand the working principle of LED lamp beads.
- Brightness
LED brightness is the determining factor of display screen brightness. High-brightness LEDs help save energy and maintain stability. When the chip brightness is fixed, a smaller angle value will make the LED brighter, but at the same time it will reduce the viewing angle of the display. Therefore, choosing a 100-degree LED helps to ensure that the display has enough viewing angle while finding a balance between brightness, angle and price. Here is knowledge about nit brightness.
- Failure rate
A full-color display is composed of thousands of pixels composed of red, green and blue LEDs. The failure of any color LED will affect the overall visual effect. Industry experience shows that the failure rate of LED displays from assembly to aging for 72 hours before shipment should not be higher than 3/10,000.
- Antistatic ability
As a semiconductor device, LED is very sensitive to static electricity, so antistatic ability is crucial to the life of the display. Generally speaking, the failure voltage of the human body static mode test of LED should not be less than 2000V.
- Lifespan
The theoretical lifespan of LED devices is 100,000 hours, which far exceeds the working life of other components. As long as the quality of LED devices is guaranteed, the working current is appropriate, the PCB heat dissipation design is reasonable, and the display production process is rigorous, LED devices will be one of the most durable components in the display.
- Attenuation characteristics
After a long period of operation, the LED display may experience brightness decline and color inconsistency, which is mainly caused by the brightness attenuation of the LED device. High-quality LED devices can well control the brightness attenuation amplitude, thereby extending the service life of the display.
- Size
The size of the LED device affects the pixel distance of the LED display, that is, the resolution. Different LED sizes are suitable for displays with different dot spacing and viewing distances. Increasing the size of the LED can increase the display area and reduce the graininess, but may reduce the contrast; conversely, reducing the size of the LED will increase the contrast, but increase the graininess. Provide you with a guide to selecting the spacing of LED displays.
- Consistency
The brightness consistency, white balance consistency, and color consistency of the full-color display depend on the consistency of the brightness and wavelength of the red, green, and blue LEDs. LED display manufacturers require device suppliers to provide LEDs with consistent wavelength range and brightness range to ensure the color fidelity of the display.
In summary, the quality and performance of LED lamp beads have a profound impact on LED displays, which are directly related to the display effect, stability and service life of the display. Therefore, choosing high-quality LED lamp beads is crucial to manufacturing high-performance LED displays.
Thank you for watching. I hope we can solve your problems. Sostron is a professional LED display manufacturer. We provide all kinds of displays, display leasing and display solutions around the world. If you want to know: Reference analysis of the selection of LED transparent screens in shopping malls. Please click read.
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