The pilot line is progressing smoothly, and Ledman PM glass-based Micro LED panels have been put into trial production in small batches

Currently, the global display industry is accelerating its iteration towards Micro LED ultimate display technology. Domestic display companies continue to tackle underlying core technologies, get rid of the traditional scale competition model, and turn to technological innovation-driven development.

With its multiple advantages such as high contrast, fast response, high brightness, long life, and low power consumption, Micro LED is recognized by the industry as the ultimate next-generation display solution, which can completely avoid the pain points of OLED screen burn-in. However, for a long time, the "mass transfer" process problem and the performance shortcomings of traditional PCB substrates have become the core bottlenecks restricting the large-scale mass production of Micro LED. Traditional PCB substrates have limited line width and line spacing, insufficient flatness, and poor thermal expansion coefficient compatibility with LED chips, which directly results in product mass production yields failing to meet consumer market standards.

As a leading company in the domestic LED display field, Ledman Optoelectronics continues to develop its expertise in glass-based Micro LED technology. In response to the above-mentioned industry pain points, Ledman Optoelectronics has accurately laid out the differentiated technology route of "PM drive + glass substrate" and found a pragmatic development path that takes into account performance and mass production costs.

Compared with the mainstream AM drive solution in the industry, the PM passive matrix drive structure is more streamlined and does not need to be equipped with a pixel thin film transistor array, which can significantly reduce the difficulty of drive circuit development and production and manufacturing costs. When paired with a high-precision glass substrate, the minimum line width and line spacing of the product can reach 12 microns, far exceeding the limit of 50 microns for traditional PCB substrates, perfectly meeting the precision arrangement requirements of micro LED chips. At the same time, the excellent thermal conductivity, heat dissipation and thermal stability of the glass substrate can effectively solve the heat dissipation problem of high-power operation of oversized panels and significantly improve the long-term stability of the product.

In fact, Ledman Optoelectronics’ glass-based Micro LED technology layout has already been launched: in 2023, Ledman Optoelectronics will launch the world’s first PM-driven glass-based Micro LED display in conjunction with Vogel Optoelectronics, taking the lead in realizing the leap from laboratory prototype to market demonstration of this technology. After years of process polishing and technology iteration, the company has completed a complete progression from prototype verification, technology optimization to small batch trial production. It has laid out a number of invention patents around core links such as chip arrangement, drive algorithms, splicing calibration, and substrate processing, building a deep technical moat.

At present, Ledman Optoelectronics has achieved a phased industrialization breakthrough and successfully completed the small-batch trial production of PM-driven glass-based Micro LED panels. At the same time, relying on its core technology research and development accumulation, it has laid out a number of core invention patents and built complete technical barriers.

According to the company's technology upgrade plan, Ledman Optoelectronics is currently making every effort to optimize and iterate the glass-based panel production process and orderly promote the construction and implementation of the new fourth-generation Micro LED glass-based ultra-high-definition panel pilot line. After the pilot line is upgraded and put into operation, it will be mainly adapted to ultra-large-size home giant screen display products of 135 inches or more. It can also widely cover multi-scenario display application requirements, laying a solid hardware foundation for the company's large-scale commercial use of Micro LED technology.

Industry analysts said that Ledman Optoelectronics has deeply explored the differentiated track of glass-based Micro LED and accurately solved the core problems of mass production in the industry. Its steadily iterative technical route and perfect patent layout fully demonstrate the underlying innovation strength of domestic LED companies and also provide an efficient and feasible Chinese solution for the implementation of global Micro LED industrialization.

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