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How to select high quality LED display based on point spacing

From FengJiled  LEON


 The point spacing is one of the important technical parameters of the LED screens, and the size of the LED video wall is divided by it. So what is it ? How to select prefect led Display according to the point spacing?



I believe that this is the question of many friends, and Let me answer this one by one: The distance between 2 pixels is the point spacing of a LED display screen. Information capacity is the quantity unit of information carrying capacity displayed by the unit area pixel density at one time. The smaller the point spacing is, the higher the video wall pixel density is, the more information the unit area can display at one time, and the closer the suitable distance is. The larger the point spacing is, the lower the pixel density, the less the information capacity can be displayed at one time, and the farther the suitable distance is.



If understand this, so how to choose?  It is related to two factors:


First, the placement of LED display screen; the distance between people standing at ordinary times is an important factor to determine the point spacing when choosing LED display. In general, there is a formula for the best visible distance = point spacing / (0.3~1), which is a probable range. For example, P10 LED display point spacing of 10mm, the best viewing distance is 10~33 meters, station distance than the minimum distance is near, the naked eye can distinguish one pixel screen, particles are relatively strong, stand far away, the human eye can not tell the detail features. In fact, this is also a probable number. For outdoor LED display, the distance is near, generally P10 or P12, far away from P16 or P20, and for indoor display, general P4~P6 can be used, far from P7.62 or P10.



Second, the total number of pixels of the LED full colors display screen. For the video, the basic resolution  is 352*288, the DVD format of the 768*576. So for the full color video, we suggest that the lowest resolution is not less than 352*288, so the display effect is good enough. If it is low, it can be displayed, but it can't achieve better results. For the single and double color LED display, the demand of resolution is not high. Therefore, the general selection of LED display, the smaller the better the point space, the higher the resolution, the more clear the display screen. However, the cost and demand, the scope of application and so on should be considered.




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