Small pitch LED indoor applications, "low light high ash" is a prerequisite
 
To ensure viewing comfort, the user in the purchase of a small pitch LED product first concern is the brightness problem. Research shows that it is from the human eye sensitivity, LED brightness (active light source) is a passive light source (projectors and liquid crystal display) 2 times, and in order to sponsor eye viewing comfort, fine pitch LED display luminance range only between 100cd / m2-300cd / m2. However, in the conventional LED display technology, reduce the screen brightness will result in the loss of gray, and gray will directly affect the loss of picture quality, therefore, an important criterion of high-quality small pitch LED screen is to reach the "low bright high ash "technical indicators.
 
In the actual purchase, users can follow the "human-readable brightness level, the better" principle, the so-called brightness level, meaning the human eye can distinguish the image from the black to the white luminance level, and is recognized brightness level, the more it shows that the greater the display's color space, showing rich colors potential for greater natural.
 
Dot pitch selection, should pay attention to balancing effect and Technology
 
Compared with the traditional LED display, LED projecting a small spacing feature is smaller dot pitch. In practice, the smaller the dot pitch, the higher the pixel density, the more information capacity per unit area of a one-time display for viewing distance is more recent, on the contrary, is suitable farther viewing distance. Given the small distance between LED concept fiery, many industrial users of natural products that the purchase of spacing the smaller the better, however, is not true.
 
LED display in order to achieve the best visual effect, best line of sight, fine pitch LED display naturally no exception. Industrial users if you want a simple calculation, there is an established formula that best viewing distance = spacing /0.3~0.8. You know, the smaller the dot pitch, the higher the cost of a small pitch LED display, therefore, the actual purchase, users should consider their own cost, demand, application and other factors.
 
Resolution options, pay attention to the back-end signal transmission equipment collocation
 
For small pitch LED display, the dot pitch, the higher the resolution, the higher the resolution, the higher the clarity of the screen, which is exactly what manufacturers of small LED spacing marketing focus. However, in practice, professional users want to build the best small pitch LED display system, the body's own screen resolution is concerned, we must also consider the match with back-end signal transmission products.
 
For example, in the security surveillance applications, the front-end monitoring system, generally include a video signal D1, H.264,720P, 1080I, 1080P and other formats, but not market all the little pitch LED screen can support more than a few video signal formats, therefore, in order to avoid wastage of resources, users in the purchase of a small pitch LED screen, we must demand options, should not blindly chasing the trend.
 
Summary:
 
Currently, a small pitch LED display is still at an early stage of development, in order to obtain a higher degree of market attention, technological innovation has become an important selling point, therefore, in the pitch technically, "no minimum, only smaller" has become the main trend of the industry, This also improves the industrial users in virtually concern pitch, in the actual purchase, it is easy because too much attention to the latest fashion, while ignoring other factors. In simple terms, a set of cost-effective small pitch LED system is the joint effect of a number of factors, and the paper highlights three aspects, it is an object to focus on user applications in the purchase.