How to calculate the transparency of LED transparent screen?

- Jul 16, 2020-

LED transparent screen, "transparent" is its biggest feature. Customers often ask, is the LED transparent screen completely transparent? How much is its transparency and light transmittance?


For customers who have not touched the LED transparent screen and have not seen the real thing, "transparent screen" is definitely a vocabulary that is full of sense and full of science fiction. When it comes to transparent screens, many people may have high-tech images in film and television works and promotional videos of concept products in their minds.


But the LED transparent screen has nothing to do with these. Most of the high-tech images in the film are virtual technology, which reflects a future technology and a direction for the future development of transparent display.


So, how is the transparency of the LED transparent screen calculated?


To calculate the penetration rate, we must first understand the concept of the penetration rate. Transparency is a physical vocabulary, which means the efficiency of light transmitted by display devices, etc. The transparency of a transparent screen is defined as the percentage of the luminous flux actually transmitted by the screen body to the luminous flux fully transmitted. The simplest calculation formula is : Transparency = (transparent space/light bar interval)*100%


For the calculation of the transparency of transparent screens, there is no industry standard for the LED transparent display industry. Therefore, the calculation methods of "transparency" or "transmittance" of LED transparent screen manufacturers for their products are different. The main logic is as follows:


Transmittance often only calculates the main part of the light bar and the light board, that is, the shading of the power box is not counted, the shading of the box frame is not counted, and the shading of PC, acrylic board or glass (single or even double layer) is not counted. Count towards.


Taking the P12 transparent screen as an example, it is known that the thickness of the light bar PCB is 2m, and the distance between the light bar and the light bar is 12mm, then the light transmission space is 10mm, so the light transmittance=10/12*100%=83.3%


Therefore, the "transparency" in the technical parameters of LED transparent screen products is the result of a variety of different calculation formulas. Users should actually experience the transparency of transparent screen when selecting LED transparent screen products. Factors choose carefully.