Point spacing is one of the important indicators of LED display technology parameters, what is the point spacing? How to choose according to the point spacing LED display? This is a lot of friends doubt, the following is our company's technical engineers on this one answer:
What is the point spacing?
The point spacing is the distance between the two pixels to reflect the pixel density, the point spacing and the pixel density are the physical properties of the display; the information capacity is the number of units of the information bearing capacity displayed by the one-time density of the pixel density per unit area. The smaller the pitch, the higher the pixel density, the greater the amount of information that can be displayed per unit area, the closer the viewing distance is. The larger the pitch, the lower the pixel density, the smaller the amount of information that can be displayed per unit area, the farther the distance to fit.
How to choose LED display point spacing?
Choose LED display point spacing, and two aspects of the factors:
First, LED display line of sight
Where the display on the place, in general, how far away from the people to see, but choose the LED display to determine the point spacing of an important factor.
Generally there is a formula for the best visual distance = point spacing / (0.3 ~ 0.8), which is a rough range. For example, the point spacing of 16mm display, the best visual distance is 20 to 54 meters, the distance away from the nearest distance, you can distinguish the display of a pixel, grain stronger, stand far The human eye can not tell the details of the details. (We are for normal vision, not including myopia and hyperopia). In fact, this is probably a number.
For outdoor LED display, the distance from the general use of P10 or P12, a little bit with the P16 or P20, and for indoor display, the general P4 ~ P6 can be, far to use P7.62 or P10.
Second, the total number of LED display screen pixels.
For video, the basic is the VCD format, resolution 352 * 288, DVD format 768 * 576. So for the video screen, we recommend the minimum resolution of not less than 352 * 288, so that the effect is good enough. If it is low, can be displayed, but not achieve better results.
And for the display of text and pictures based single and double color LED display, the resolution of the request is not high, according to the actual size, the minimum display 9 font problems, according to your text to set.
Therefore, the general choice of LED display, the smaller the better spacing, the higher the resolution will be higher, the display was clear. But also to consider the cost and demand, the scope of application and other factors.