/PRCWT/Shanghai, October 27, 2023 - On October 26, Lehman officially released the world's first PM-driven glass-based Micro LED display, and held on the same day at the 2023 Sixth China (International)Micro LED Display Summit Forum, The 220-inch Rayman Micro LED Ultra HD home giant screen with PM-driven glass substrate is exhibited for the first time.
The 220-inch Rayman Ultra HD home giant screen with a PM driven glass-based Micro LED display has a resolution of 3840*2160, a brightness of 600nits, a viewing Angle of more than 170°, a color gamut of 90%DCI-P3, and a body display surface protection level of IP65. From the overall performance of the product, Rayman glass-based Micro LED home giant screen has excellent performance in brightness, resolution, color gamut, anti-blue light, response speed and service life.
Innovative technology route - PM driven glass base
Lehman's world's first PM driven glass-based Micro LED display uses Lehman's latest patented COB packaging technology, while using PM drivers to achieve image display, which can significantly reduce manufacturing costs while achieving finer picture details, and can cover the needs of a variety of application scenarios.
Using Lehman's latest COB packaging technology, combined with the latest glass substrates based on semiconductors, lithography and advanced copper processes, hyperfine circuit design structures can be achieved over large areas.
The glass substrate direct display technology has the unique advantages of high flatness, good heat loss and high contrast. The Lehman 220-inch glass base giant screen refresh rate is 3840Hz, supporting 600nits brightness and million-level dynamic contrast, the gray level reaches 14bit, the color gamut reaches 90%DCI-P3 standard, and every color of the image can be accurately presented. Due to the special design of Lehman in the electronic and electrical structure, it reduces the difficulty of process realization, can effectively reduce manufacturing costs, and lays a foundation for products to enter a broader market.
Compared with the traditional PCB board, the core material of the glass substrate and the LED light-emitting chip are inorganic semiconductor crystals, and the two are more similar in the thermal effect deformation coefficient; The glass substrate has high thermal conductivity, can dissipate heat better, has the characteristics of low thermal expansion coefficient and low temperature impact resistance, thus improving the performance quality of the screen and the service life of the screen, and can also meet the needs of more complex wiring and higher electrical connection density, so as to meet the display needs of smaller size and higher resolution; In addition, the flatness of the glass substrate is higher, and it is easier to achieve breakthroughs in chip transfer technology, and the application of "glass substrate" in Mini/Micro LED has gradually become a new direction, and the development potential is great.
In the field of Mini/Micro LED display technology, PM driver technology has become the key to maintaining optimal product technical characteristics in terms of heat dissipation, stability, ultra-thin integration, flatness, high contrast, and high-density integrated control.
Lehman glass giant screen technology leadership
The COB technology of glass substrate has a certain technical threshold. In the COB technology of glass substrate, packaging technology accounts for about 70% and display technology accounts for 30%, which is an integration of multi-disciplinary technology and process. At the same time, the technical problems are not only solved by funds, but also require the precipitation of technology and process practice.
Rayman's tech gene
As early as 2014, Lehman forward-looking layout COB, has been deeply cultivated COB technology for many years, has an important industry position in the field of COB, and has a variety of COB packaging process route mass production capacity, currently in the field of COB still maintain the first market share. The 220-inch Lehman Micro LED glass-based home giant screen released this time uses the latest COB packaging technology independently developed by Lehman, using more than 100 Lehman's independent LED patents, which is the result of Lehman's accumulation.
In SUMMARY:
Lehman's release of the 220-inch Lehman Micro LED glass-based home giant screen is an important part of Lehman's strategy to enter the C-end, and LED display into the C-end is an important trend in industrial development. Through a series of actions such as the reserve of technology, the launch of products, the layout of marketing networks, and the opening of flagship stores, Lehman is transforming its far-reaching strategic vision step by step. It can be said that Lehman's active practice is leading the industry to a new era.
