Shulou(Shulou.com)11/24 Report--

On October 26th, Lehman officially released the world's first PM-driven glass-based Micro LED display screen, and on the same day, the sixth China (International) Micro LED display Summit Forum held in 2023, for the first time exhibited the 220in Lehman Micro LED ultra-high-definition family screen using PM-driven glass substrate.

Using PM to drive the glass-based Micro LED display, the resolution of the 220in Lehman ultra-high-definition family screen is 3840mm 2160, the brightness is 600nits, the visual angle is more than 170°, the color gamut is 90% DCI-P3, and the screen body display surface protection grade reaches IP65. From the overall performance of the product, Lehman glass-based Micro LED family screen has excellent performance in brightness, resolution, color gamut, blue light protection, response speed and service life.

Innovative Technology Route-- PM driven Glass Matrix

Lehman's first PM-driven glass-based Micro LED display uses Lehman's unique patent of the latest COB packaging technology, while using PM driver to achieve image display, which can greatly reduce manufacturing costs while achieving more detailed picture details, and can cover 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, ultra-fine circuit design structures can be achieved on a large area.

The glass substrate direct display technology has the unique advantages of high flatness, good heat dissipation and high contrast. The Lehman 220in glass-based giant screen refresh rate is 3840Hz, supports 600nits brightness and million-level dynamic contrast, gray scale reaches 14bit, color gamut reaches 90% DCI-P3 standard, and every color of the image can be displayed accurately. Because Lehman has made a special design 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 plate, the core material of the glass substrate and the LED light emitting chip are inorganic semiconductor crystals, and they are more similar in the thermal effect deformation coefficient. The glass substrate has high thermal conductivity, can give off heat well, has the characteristics of low thermal expansion coefficient and resistance to low temperature shock, thus improving the quality of picture expression and the service life of the screen. It can also meet the needs of more complex wiring and higher electrical connection density, so as to meet the display requirements of smaller size and higher resolution. In addition, the flatness of glass substrate is higher, and it is easier to achieve a breakthrough in chip transfer technology. The application of "glass substrate" in Mini / Micro LED has gradually become a new direction and has great potential for development.

In the field of Mini / Micro LED display technology, PM driver technology has become the key to maintain the optimal product technical characteristics in the aspects of heat dissipation, stability, ultra-thin integration, flatness, high contrast, high-density integrated control and so on.

The Technical leadership of Lehman Glass Curtain

The COB technology of glass substrate has a certain technical threshold. The COB technology of glass substrate accounts for about 70% of the packaging technology and 30% of the display technology, which is an integration of multi-disciplinary technology and technology. At the same time, the technical problems are not only solved by funds, but also by the precipitation of technology and process practice.

The Technology Gene of Lehman

Lehman's forward-looking layout of COB as early as 2014, has been deep cultivation of COB technology for many years, has an important position in the industry in the field of COB, while has a variety of COB packaging process line of mass production capacity, currently in the COB field still maintain the first market share. The release of the 220in Lehman Micro LED glass-based family screen, using the latest Lehman independent development of COB packaging technology, the use of more than 100 Lehman independent LED patents, is the result of Lehman's accumulated strength.

Summary:

Lehman's release of the 220in Lehman Micro LED glass-based home screen is an important part of Lehman's strategy to enter the C-end, while LED shows that entering the C-end is an important trend of industrial development. Through a series of actions, such as the reserve of technology, the launch of products, the layout of marketing network 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 into a new era.

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