A good led display, can not do without a good driver chip, the so-called scales separated mound, mound leave the scales, led display screen driver chip is not good, so it is hard to achieve the perfect display.
In China, chip technology is still relatively lacking. Many LED chips need to be imported and imported back. Because of the driver chip, LED display will have the advantages of high energy saving, long life and environmental protection. These superiorities will be widely accepted by the general public. Therefore, the importance of the driver chip for the LED display screen is conceivable, so since it is so important, how to choose a good driver chip as a manufacturer of LED display screens ? Only good driver IC matching, LED display advantages Will be fully reflected, the following specific explanation from six aspects:
1. The nominal input voltage range of the driver chip should meet the DC 8~40V to cover a wide range of application needs.
2. The nominal output current requirement of the driver chip is greater than 1.2~1.5A.
3. The output current of the driver chip must be kept constant, so that the LED display can be stably illuminated 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 pass CE, UL and other certifications. Therefore, when designing the driver chip, it is necessary to select advanced topology and high-pressure production process.
5. The power consumption requirement of the driver chip is less than 0.5W, and the switching operating frequency requirement is greater than 120Hz, so as to avoid visible flicker caused by power frequency interference.
6. The package of the driver chip should be beneficial to drive the rapid dissipation of the chip die. The physical heat dissipation structure of the chip itself is also very important.
The LED display must have the support of the driver chip. The LED display cannot be separated from the driver chip. Therefore, it needs a multi-function LED display light source to drive the IC. However, China needs to improve the chip technology. To develop innovative design, it needs to be in the chip. Technically, there are higher requirements and more difficulties to develop. Only in this way can LED display occupy the position in the market and produce more LED products that make customers satisfied. The LED display industry can go better and longer. .
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