Ledman’s PM Glass Substrate Micro LED Display Panels Have Realized Small-batch Trial Production

Ledman has been proactively researching technologies and processes related to glass substrates and officially launched the world’s first PM Glass Substrate Micro LED display in October last year. At that time, the market did not realize that this exploration could potentially open up a new competitive field.

By innovatively applying PM Glass Substrate technology, Ledman is capable of creating high-cost-performance products that excel in energy efficiency, screen temperature control, and significantly lower costs. This innovation is seen as a crucial entry point for pushing large-scale Micro LED displays into the consumer market.

Due to the outstanding cost and performance advantages of PM Glass Substrate display panels, Ledman has begun exploring their application in commercial and consumer fields such as conference rooms, education, and household giant video walls. In the home market, Ledman has initially launched a 220-inch glass-based Micro LED 4K Household Giant Video Wall.

The reduction in the size of LED light-emitting chips is an effective path to lower costs for large-scale Micro LED displays. Currently, PCB substrates are nearing the limit of the LED chip sizes they can support, whereas glass substrates can accommodate smaller LED chips, which can significantly reduce the cost of LED displays. Additionally, Ledman’s unique PSE technology allows for achieving nearly the same resolution as existing products with fewer LED chips and fewer driver ICs. This means that Ledman’s next generation of large-scale Micro LED displays will not only use cheaper glass substrates and smaller, more affordable LED chips, but also require significantly fewer microchips. This combination paves a clear path for reducing the cost of Micro LED display products.

However, the miniaturization of Micro LED chips presents several challenges, such as reduced peak efficiency and etching sidewall damage. Techniques like sidewall passivation and DBR (Distributed Bragg Reflector) are key to improving light efficiency. Miniaturization also affects internal quantum efficiency, so strategies to enhance crystal quality, reduce defects, and optimize carrier transport are crucial for improving light efficiency across a wide temperature range.