What Kind of LED Display Can be Considered a "Good Screen"
1. Material: FR-4 glass fiberboard, some manufacturers in order to reduce the cost may use FR-2 paper substrate; copper foil thickness: the thickness of the copper foil, the thickness of the copper foil, the thickness of the copper foil, the thickness of the copper foil, On the PCB board cooling and line stability has a role can not be ignored, the normal copper foil thickness is 35um (1Oz), and some manufacturers will use 18um (0.5Oz) copper foil thickness to shoddy; then as a consumer How can you identify it? You can take an empty PCB by weight to distinguish, under normal circumstances, the heavier the better.
2. the design of several key points: connectors, connectors refer to the module and the module between the connector, and now the market is more than the main two, one is the horns, one is the row needle. The advantages of horns are through the two card bit to catch the cable, not prone to problems caused by the connector problems; electrolytic capacitors and tantalum capacitors on the choice of long life requirements, tantalum capacitors is undoubtedly the first choice for Requires low-cost occasions, electrolytic capacitors are preferred.
Automated production equipment
Most of the screen for the electronic components, and static electricity on the electronic components have a very large harm, and sometimes electrostatic breakdown of the components directly to damage, and sometimes it does not directly breakdown, but leave hidden dangers, the side effect is the yuan The device is damaged after a period of use. In the electronics manufacturing industry, for the handling of artificial static people think of a lot of ways, including wearing static ring, wearing a static clothing, the use of clean room and so on. In fact the most effective way is to try to avoid the staff to contact electronic components, and the use of automated equipment to achieve this goal, LED display manufacturers.
Average power consumption
Square power consumption is a square meter area of the LED display generated by the power consumption, we usually say that the power unit in watts / hour. For example, a square meter LED display using the power consumption is 300 watts, then the display of each square meter per hour will consume 300 watts / hour of electricity, that is, we often say that 0.3 power. LED display power consumption will generally have two indicators, one is the maximum power consumption, one is the use of power consumption. The maximum power consumption is the maximum brightness of the LED display when the power consumption, how to use the eye to determine the maximum power consumption size? Method is very simple: see the number of power behind the box, multiplied by the maximum power of each power, according to the box Size can calculate the maximum power consumption square meters, the general use of the power supply has two, 200W and 300W power supply.
Indoor small spacing: low light high ash
Low brightness, the specific explanation: small pitch LED display brightness range of 100cd / ㎡-300cd / ㎡ interval, the display of the gray scale is not lost, or the degree of gray loss in the human eye is difficult to detect the extent The Low gray high ash will be one of the key factors in distinguishing the quality of small-pitch LED display products. For small pitch products, the LED display contest will no longer be compared with someone who is high brightness, but rather who compared the low brightness Than anyone else's display screen can be done to reduce the brightness while not losing the grayscale and quality. In other words, only to do a low light high gray small distance LED display is in line with user requirements, with competitive strength of a good product, LED tiles display.
The human eye in the dark environment below, close, long time to watch the high brightness of the small spacing LED display, LED-specific high brightness often makes people feel dazzling, and even cause eye pain, tear and vision decreased. Therefore, the LED display brightness is too high, will give the indoor application of the user to bring visual fatigue, and even serious may cause irreparable damage to the human eye! Can be said that the small distance LED display brightness is definitely not the higher the better, The brightness down. A large number of tests show that the brightness range of LED display control in 100cd / ㎡-300cd / ㎡ this brightness range, the human eye is more comfortable feeling.