What impact does the choice of LED lamp beads have on the transparent screen?

May 17,2021| LED Knowledge

Transparent screens have a very common promotion method in the field of commercial display. Every day we see LED screens on the street from time to time, but some people think of LED screens when they see transparent screens. How are the screens made, what are the key materials, or what components are needed for their overall composition? LED lamp beads are the most important part of the transparent screen. The lamp beads play an important role in the display effect of the transparent screen, which is equivalent to the dragon vein of the transparent screen.

What impact does the choice of LED lamp beads have on the transparent screen?

transparent screen




1. LED lamp bead life


The theoretical life of the transparent LED screen is 100,000 hours, which is much longer than the working life of other components. The choice of lamp beads is the most critical part of the LED transparent screen.


LED lamp beads account for 60% of the price of the transparent screen, so the LED lamp beads can determine the quality of the transparent screen and the vividness of the picture quality in the future use process. Shenzhen is not only the main production area of LED displays, but also the birthplace of LED displays in various industries. Most of the domestic large-scale transparent screen manufacturers are located in Shenzhen.


The high-tech requirements for transparent screens are the future development trend of transparent screen manufacturers. The high-quality requirements of transparent screens not only affect the strength of manufacturers, but also the production efficiency of transparent screen manufacturers.

What impact does the choice of LED lamp beads have on the transparent screen?


2. Attenuation characteristics of LED lamp beads


After the transparent screen works for a long time, the color and brightness of most transparent screens are inconsistent on the display screen, which is mainly caused by the performance degradation of the LED lamp beads. The quality of the LED lamp beads will reduce the brightness of the entire screen of the transparent screen.


High-quality LED lamp beads can well control the brightness attenuation. In addition to the attenuation characteristics related to the red, green and blue LED characteristics, the use of current, the heat dissipation design of the PCB, and the ambient temperature of the display will all affect the attenuation.


3. LED lamp bead size


The size of the LED lamp beads will affect the pixel distance of the transparent screen, which is what we often call the resolution. 5mm oval lights are mainly used for outdoor displays above P16, and 3mm oval lights are mainly used for outdoor displays of P12.5, P12, and P10. On the premise that the dot pitch remains the same, increasing the size of the LED lamp beads can increase the display area and reduce the size of small particles. However, as the black area decreases, the contrast will decrease. On the contrary, the size of the LED decreases, the display area decreases, and the granularity increases; the black area increases, and the contrast increases.

What impact does the choice of LED lamp beads have on the transparent screen?


4.the viewing angle of the transparent screen


The viewing angle of the transparent screen depends on the viewing angle of the LED lamp beads. Currently, most outdoor displays use oval LEDs with a horizontal viewing angle of 100° and a vertical viewing angle of 50°, while indoor displays use SMD LEDs with a horizontal and vertical viewing angle of 120°. Although King Kong Vision uses National Star 1921 lamp beads to achieve a 170° viewing angle, some high-quality transparent screens have higher requirements for vertical viewing angles. Viewing angle and brightness are contradictory, and a large viewing angle will inevitably reduce brightness. The choice of the viewing angle of the transparent screen needs to be determined according to the specific purpose.


  Article KeyWords:LED lamp,led transparent screen

 

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