Recently, Chengdu company Chenxian Optoelectronics held a ceremony to move in the equipment of the first TFT-based Micro-LED mass production line. This also means that the mass production and shipment of "Made in Chengdu" Micro-LED has entered the countdown. What is Micro-LED? "As the next generation of display technology, Micro-LED has performance advantages such as high brightness, long life, and free splicing. It has broad application prospects in command and dispatch centers, vehicle-mounted displays and other fields." Dr. Qian Xianrui, deputy general manager of the company, said. In 2020, after Chenxian Optoelectronics settled in Chengdu, it took only 10 months to build the first Micro-LED full-process pilot line in mainland China. In 2023, the construction of the first TFT-based Micro-LED display production line was officially launched. Recently, the reporter walked into Chenxian Optoelectronics, located in the West District of Chengdu Hi-Tech Zone, and talked with Dr. Qian Xianrui, the company's deputy general manager. Which semiconductor headhunting companies in Chengdu are better? Let's see how Chenxian Optoelectronics, as the main force in the new display industry, can overcome the bottleneck of Micro-LED display technology and show Chengdu's innovative power at the forefront of global science and technology. "We will be in mass production by the end of this year. This production line fills the gap in the domestic Micro-LED industry and will greatly promote the commercialization process." Recently, when the reporter just met Dr. Qian Xianrui, deputy general manager of Chenxian Optoelectronics, he shared this good news with us. On the other hand, on the pilot production line of Chenxian Optoelectronics, the manufacturing process of a Micro-LED display module has multiple processes. These standardized modules will be used to splice display screens of different shapes and sizes, and eventually become a Micro-LED display product. Time goes back to 2020. After visiting several cities, the entrepreneurial team of Chenxian Optoelectronics finally chose to land in Chengdu, and then started the "Chengdu speed". In May of the following year, the Micro-LED display was lit up in the factory. In 2021, the first Micro-LED pilot production line in mainland China covering all aspects from LTPS driver backplane, mass transfer, repair to module will be built. It is reported that this production line has created the fastest speed of production line construction in the global industry. "This year we also launched the world's first 27-inch front-protected TFT-based Micro-LED splicing cabinet with a pixel pitch of only 0.5mm. It has a golden ratio of 16:9. It can be seamlessly spliced like building blocks to create a large screen of any size." Dr. Qian Xianrui introduced the chip headhunting companies in Chengdu. The glass backplane used in the screen improves the display accuracy and picture flatness, and achieves an almost invisible splicing gap of less than 20 microns. As the next generation of new display technology, Micro-LED has ultra-high brightness, contrast and resolution, and can present more realistic and delicate images. At the same time, Micro-LED uses self-luminous technology, does not require a backlight source, has the characteristics of low power consumption and long life, and is suitable for high-end display scenarios. But when the industry wants to make a breakthrough from 0 to 1, it needs to overcome many difficulties. Dr. Qian Xianrui gave an example, how small is Micro-LED? Simply put, it is smaller than a hair, "the size of the chip is only a fraction of the diameter of a hair." At the same time, mass transfer technology is a key challenge. Millions of micron-level LED chips need to be accurately transferred to the substrate, which requires extremely high precision and efficiency. This time, seamless splicing technology is also one of the difficulties. It is necessary to ensure that the spliced display screen has almost no seams, which requires extremely high process requirements. "When we first developed it, the industry said that there was no equipment, no process, no materials, and all technologies were in a blank state in China. We need to find equipment manufacturers, material manufacturers, etc. to cooperate in development, and our own processes and designs also need to be constantly iterated." Dr. Qian Xianrui said. The complexity and high technology dependence of the new display industry, this industry covers multiple links from basic materials to terminal applications, involving LED chips, driver ICs, backplane technology, display modules and other fields. Only by relying on the support of high-tech talents and close cooperation of the entire industry chain can we truly promote the innovation and development of the industry. Dr. Qian Xianrui said that Chenxian Optoelectronics attaches great importance to the coordinated development of the upstream and downstream of the industrial chain. At present, it is working closely with domestic equipment suppliers and scientific research institutions to build a complete domestic Micro-LED industry ecosystem. Through technology sharing and project collaboration with partners, it has effectively promoted the progress of related industries in equipment research and development, material supply and other aspects. This year, "new quality productivity" was written into the government work report, and it was clearly proposed to "vigorously promote the construction of a modern industrial system and accelerate the development of new quality productivity". Looking to the future, Micro-LED has broad application prospects in commercial display, command and dispatch center, high-end home theater, car display, wearable devices and other fields. For example, the commercial display field has high requirements for ultra-large screens, high-definition picture quality and long-term stable display. Micro-LED can meet these needs with its high brightness and seamless splicing. "The Micro-LED industry will show a momentum of rapid growth in the next few years, and is currently in the early stage of industrial explosion. It is expected that by around 2030, it will present a market size of hundreds of billions." Dr. Qian Xianrui said that although display technology has been constantly innovating, Micro-LED display technology is very likely to reshape the entire display industry ecosystem.
