Important factors of quality assurance of LED display screen

Effect of temperature on the complex LED display

LED screen is very critical to the environment temperature. In theory, the working state is the best at about 25 degrees centigrade. But in fact, outdoor display in the application of the ambient temperature is very complex, the highest temperature in summer may be above 60 degrees Celsius, the lowest temperature in winter may be below -20 C. LED, IC work efficiency and performance is inconsistent, the brightness is not the same, the overall display of the screen has naturally changed. Under different temperature conditions, the brightness of red, green and blue three kinds of light attenuation and decline is different, at 25 DEG C, the white balance is normal, but at 60 DEG C, the brightness of three colors of LED are decreased, and the attenuation value is not the same, it will produce a whole screen brightness and color drop phenomenon, the quality of the entire screen will decline. And IC? The working temperature range of IC is -40 - 85. Because the outside temperature is too high due to the temperature rise in the box body, if the temperature is higher than 85 DEG C, IC because of high temperature caused by instability, or drift resulting from different channels or current between the difference is too large to huaping. The domestic manufacturers are trying to display in the design process, a lot of improvement, can effectively control the external environment temperature influence on the final screen effect, as much as possible so that the LED display can display the perfect under various complex conditions.

The key factors in the design box.

Box design is very important for the display, on the one hand is the circuit protection of it, on the other hand is safe, and dustproof and waterproof effect. But it is more important that the design of the thermal circuit system of ventilation and heat dissipation is good. With the increase of the start-up time and the outside temperature, the thermal drift of the components will increase, which will lead to the poor quality of the image. Good ventilation and heat dissipation design is necessary for the design of the box.

The importance of power

Power in a LED display is an important link in the system but also affect the quality of the. Because of the power supply under different temperature conditions, the stability, output voltage and load capacity will be different, because it bears the function of the logistics, so the protection of its ability to directly affect the screen quality. Due to the different performance and stability, different brands and specifications of the power supply equipment prices also have considerable difference. Can not only look at the low price and do not look at its performance and quality to choose.

The importance of brand

A well-known brand in the market after a long hard work in order to obtain social recognition. Depending on the brand as the life of the enterprise, will not easily hurt their brand image for short-term benefits. And some small companies or well-known companies are not high, there is no scruples in this regard. Sometimes in order to short-term interests, at the expense of their own reputation, to make harm to customer behavior. Therefore, the choice of large brand suppliers, quality assurance is very helpful.