The importance of driver chips for led displays > 자유게시판

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For the current LED display industry, the driver chip is very important. Up to now, our country is still relatively lacking in chip technology. Many LED chips still need to be imported from abroad. Because of the driver chip, the LED display will have high The advantages of energy saving, long life, and environmental protection. Just because of these advantages, it will be widely used by people. Therefore, the importance of the driver chip to the LED display is conceivable. Since it is so important, as a manufacturer of LED display, how to choose a good driver chip? Only when there is a good driver IC match, the advantages of the LED display will be fully reflected. The following is a detailed explanation from six aspects:

1. The nominal input voltage range of the driver chip should meet DC 8~40V to cover a wide range of application needs.

2. The nominal output current of the driver chip is required to be greater than 1.2~1.5A.

3. The output current of the driver chip must be kept constant, so that the led display can glow stably without flickering.

4. The ability of the driver chip to resist EMI, noise and high voltage is also related to whether the entire LED display product can successfully pass CE, UL and other certifications. Therefore, it is necessary to choose advanced topology and high-voltage production technology when designing the driver chip.

5. The power consumption of the driver chip is required to be less than 0.5W, and the switching frequency is required to be greater than 120Hz to avoid visible flicker caused by power frequency interference.

6. The packaging of the driver chip should be conducive to the rapid heat dissipation of the driver chip die, and the physical heat dissipation structure of the chip itself is also very important.

To sum up, the above 6 points show that the LED display must have the support of the driver chip, and the led screen wall design display cannot be separated from the driver chip, so a multi-functional LED display light source driver IC is required. However, my country still needs to improve its chip technology. To develop innovative design, it needs higher requirements on chip technology and more difficult development. Only in this way can LED display screens occupy a position in the market and produce more products. Let customers be satisfied with LED products, so that our country will have a greater chance of winning in the LED display industry!