What are the key factors to consider when choosing an LED display

In recent years, the market for LED displays has become larger and wider. There are also more and more LED Display manufacturers. In addition to the established, well-known LED companies, there are also a lot of small manufacturers. Although the market is getting wider and wider, the competition is also getting bigger and bigger. There is benign technical competition, and there is also a bad price war. In order to survive, small new LED manufacturers have entered the market with a low price, and can quickly open the market and seize a group of customers.

In recent years, the market for LED displays has become larger and wider. There are also more and more LED Display manufacturers. In addition to the established, well-known LED companies, there are also a lot of small manufacturers. Although the market is getting wider and wider, the competition is also getting bigger and bigger. There is benign technical competition, and there is also a bad price war. In order to survive, small new LED manufacturers have entered the market with a low price, and can quickly open the market and seize a group of customers.

But in many cases, a series of accidents are caused by technical and quality problems. Then the customer has to spend money and time to repair, and the gain is not worth the loss. Therefore, the LED display is not a short-term tool, it does not want a mobile phone, it can be replaced every year. The reason why there are all kinds of cheap domestic mobile phones on the market, although the technical quality is not as good as imported Apple, but the sales volume far exceeds that of Apple, because the mobile phone is a short-term tool for consumers, and it will be replaced soon. Need to buy Tebi better.

But the LED display is different, it needs to be used for a long time, 5 years, 8 years and 10 years. Therefore, low prices must not be an important factor for consumers to choose LED displays. Good quality and durability are the real savings for customers.

Since LEDs and ICs are semiconductor devices, they are critical to the environment’s operating conditions, preferably around 25°C at room temperature, and their working mechanism is the best. But in fact, a large outdoor screen will be used in different temperature environments, which may be above 60°C in summer and below -20°C in winter. When the manufacturer produces products, the test condition is 25℃, and different products are classified into different grades, but the actual operating conditions are 60℃ or -20℃. At this time, the working efficiency and performance of LED and IC are inconsistent, which may originally belong to the first grade. The screen will become multi-speed, the brightness will be inconsistent, and the screen will naturally become blurred.

This is because under different temperature conditions, the brightness attenuation and decline of the red, green and blue lights are different. At 25°C, the white balance is normal, but at 60°C, the three colors of LEDs The brightness of the whole screen is reduced, and the attenuation value is inconsistent, so the brightness of the whole screen will be reduced and the color cast phenomenon will occur, and the quality of the whole screen will be reduced.

And IC? The operating temperature range of IC is -40℃-85℃. The temperature inside the box rises due to the high external temperature. If the temperature inside the box exceeds 85°C, the IC will work unstable due to the high temperature, or the temperature drift will cause the current between channels or the difference between chips to be too large. Causes the screen to be blurred.

The Links:   NL10276BC30-18C 2DI240A-055

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