How consumers should judge the performance of full-color LED displays
With the continuous popularity of full color led display, people also have more demand for full color led display. Due to the full-color LED display itself has the characteristics of custom-made products, how to choose a suitable LED product aspects, the end customer generally need to communicate with the sales staff abundantly, before it is possible to develop a program to meet the real needs of customers.
Because full-color LED display is a professional product, non-professional customers generally do not have the basic knowledge of judging products, so, first of all, we need to establish a recognized norms for judging. Full-color LED display such a large-scale information display terminal, its basic function is the source of information, comprehensive, faithful display to the target audience, which includes static images, text, dynamic video and even audio. Therefore, this specification is simple to say that it looks good “for people to see things, it must be people look and feel good on the good. This omits a lot of specialized terminology to describe, but also helps to draw closer to the customer's distance, to reach a basic consensus on the specifications.
But why do some displays “look good” and some displays “look bad”? This is because of the two key factors affecting the display effect of the display:
1 full-color LED display brightness: to display information correctly in an environment, there must be enough brightness to ensure the actual contrast of the image. Therefore, according to the use of different environments display screen must have the corresponding brightness to ensure.
After the display is put into use, the brightness of the LED tube as a light source begins to decay, when the brightness decreases to half of the initial brightness, in accordance with the definition of the life of the display on the end of the display, so the rate of brightness decay is one of the important performance of the display.
2 full-color LED display color consistency: base color display, each color brightness, chromaticity is consistent, display red, there is no variegation. This is to ensure the correct restoration of the source color information basis.
Display of the initial period of use, generally should be able to ensure the consistency of color. With the use of the process of LED tube attenuation, due to the semiconductor devices themselves have individual differences, as well as differences in the LED production process, resulting in different attenuation curves for each LED tube, resulting in the growth of the use of time, the color consistency of the display is getting worse and worse.
3 full color LED display refresh rate: a higher refresh rate can ensure that the display better display effect, the viewer is not easy to produce visual fatigue, at the same time shooting the display will not produce water ripples. The better LED full color refresh rate on the market can reach 1920 and above.
Based on the above three basic judging basis, is one of the important factors in judging the intrinsic quality of the display, to ensure that to do this, first of all need LED display manufacturers have excellent manufacturing process, and secondly in the display of the whole production process does not make the LED tube by the impact of static electricity and so on.
