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Before buy a small-pitch LED display

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Before buy a small-pitch LED display
Latest company news about Before buy a small-pitch LED display

What you need to learn before buy a small-pitch LED display?

Small-pitch LEDs have undoubtedly become the darlings of the large-screen display field. So what should consumers pay attention to when purchasing small-pitch LEDs?

 

In today's large-screen display field, small-pitch LEDs have become a well-deserved hit, and the application market size is rapidly rising. For many users, although the small pixel pitch is not unfamiliar under the marketing bombing of manufacturers, when it comes to how to choose a product that suits them, they are still lacking in confidence. So, in the actual purchase, what should users pay attention to in order to maximize the use of their own investment on the premise of meeting application requirements?

 

1. Small-pitch LED indoor applications, "low brightness and high gray" is a prerequisite

In order to ensure the viewing comfort, the first thing users should pay attention to when purchasing small pitch LED products is brightness. Related research shows that, in terms of human eye sensitivity, the brightness of LEDs (active light sources) is twice that of passive light sources (projectors and liquid crystal displays). To ensure the viewing comfort of human eyes, The brightness range can only be between 100cd / ㎡ and 300cd / ㎡. However, in the traditional LED display technology, reducing the screen brightness will cause a loss of grayscale, and the loss of grayscale will directly affect the picture quality. Therefore, an important criterion for high-quality small-pitch LED screens is to achieve "low "High-gray" technical indicators.

In actual purchase, users can follow the principle of "the more brightness levels that the human eye can recognize, the better." The so-called brightness level refers to the brightness level of the image that can be distinguished by the human eye from the darkest to the whitest. The more brightness levels, the larger the color space of the display, and the greater the potential for rich colors.

 

2. Dot pitch selection, pay attention to balance effect and technology

Compared with traditional LED displays, the prominent feature of small-pitch LEDs is the smaller dot pitch. In practical applications, the smaller the dot pitch, the higher the pixel density, the more information capacity can be displayed per unit area, and the closer the viewing distance is, the more suitable the viewing distance is. In view of the popularity of the small-pitch LED concept, many users in the industry naturally believe that the smaller the dot pitch of the purchased product, the better. However, this is not the case. In order to achieve the best visual effects for LED displays, there is an optimal viewing distance, and small-pitch LED displays are no exception. If users in the industry want to perform simple calculations, there is an established formula, that is, the best visible distance = point distance / 0.3 ~ 0.8. It should be known that the smaller the dot pitch, the higher the cost of the small-pitch LED display. Therefore, in actual purchase, the user must comprehensively consider his own cost, demand, application range and other factors.

 

3. Resolution selection, pay attention to the matching with back-end signal transmission equipment

For small-pitch LED displays, the smaller the pixel pitch, the higher the resolution, and the higher the resolution, the higher the sharpness of the screen. This is also the focus of manufacturers' marketing of small-pitch LEDs. However, in actual operation,  users want to build the best small-pitch LED display system. While paying attention to the screen's own resolution, it must also consider its matching with the back-end signal transmission products. For example, in security monitoring applications, front-end monitoring systems generally include video signals in formats such as D1, H.264, 720P, 1080I, 1080P, etc. However, not all small-pitch LED screens on the market can support the above. Video signals in various formats. Therefore, in order to avoid waste of resources, users must choose according to their needs when purchasing small-pitch LED screens, and must not blindly catch up with the trend.

Pub Time : 2019-12-26 14:40:19 >> News list
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