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<p>Since the <a href="https://www.atop8.com/" rel="noopener noreferrer" target="_blank"><strong>LED display manufacturers</strong></a> of the common cathode power supply technology have been introduced by some LED display manufacturers at the industry exhibition at the beginning of this year, the excellent performance of 75% energy saving has attracted the attention of the whole industry chain. Actually, “Common Cathode” is not a new technology. In the early years, some of the screen enterprises in the industry have been widely used in national ministries and provincial key projects, and now with the industry chain and technology. The products are maturing, stable, and cost-reducing, so that the “Common Cathode” LED display is truly in the public eye.</p><p><br></p><p><strong>What is a common cathode LED display?</strong></p><p>“Common Cathode” refers to the common yin power supply mode. The Common Cathode <a href="https://www.atop8.com/products" rel="noopener noreferrer" target="_blank"><strong>LED display</strong></a> adopts separate power supply of R, G and B, accurately distributes the voltage and current to the red, green and blue lamp beads, and the current passes through the lamp beads to the IC negative pole. The pressure is lowered and the internal resistance is small.</p><p><br></p><p><strong>What are the advantages of the “Common Cathode” product?</strong></p><p>In recent years, as LED Displays have gradually entered a mature stage, the requirements for products are getting higher and higher, especially in terms of reliability, service life and display consistency. The common power supply technology has an advantage in these aspects. It can reduce the red LED supply voltage to reduce system power consumption, lower the screen temperature, make electronic components more reliable at relatively low temperatures, longer life, ultra-small pitch and Mini / Micro LED More advantages in application. At the same time, other energy-saving technologies can be integrated to maximize energy savings.</p><p><br></p><p>The LED display energy saving problem has always been the focus of the whole industry, especially for the<a href="https://www.atop8.com/outdoor-fixed-installation-led-display" rel="noopener noreferrer" target="_blank"><strong> outdoor fixed LED display </strong></a>owners of “large power consumers”, because of their long-term use, energy saving can save customers cost, More in line with the development needs of the big environment, in the long run is more cost-effective.</p><p><br></p><p><strong>Why is “Common Cathode” now?</strong></p><p>As we all know, any new technology, new product industry chain mature needs to go through a certain process, especially the industrial chain of LED display products including driver IC, lamp beads, PCB, power supply, packaging, supporting facilities, etc. The same is true for the negative LED display products. This is also why the “Common Cathode” products have long existed, but they have not been effectively promoted. However, in the current situation that the common LED display industry chain has gradually developed and products and technologies are more stable, it has once again become popular.</p><p><br></p><p>In the first half of 2019, a number of LED companies in the upstream and downstream of the industry chain launched the “Common Cathode ” energy-saving <strong>LED display products</strong> and related packages:</p><p><br></p><p>At the ISLE exhibition in Guangzhou in March, the new energy-saving cold screen “common cold screen series” was introduced. It is reported that the temperature of the product is 60% lower than that of the conventional screen, effectively controlling the temperature rise, and the screen operation is more stable; the power saving is about 70%, and the efficiency is high. Energy-saving driver ICs reduce circuit drive losses and reduce operating costs.</p>
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