With the rise of new applications of ultra-high-definition display in the 5G era, Micro LED has attracted much attention as a new generation of mainstream display technology. This technology has many advantages such as high resolution, high brightness, high color saturation, high reliability, low power consumption, low latency, narrow frame, and long life. Especially transparent LED display. It can be widely used in large-sized ultra-high-definition video walls and smart screens, small and medium-sized car screens and smart watches, as well as VR/AR and other electronic consumer products of various sizes, and the future prospects are promising.
After the first generation of glass-based transparent passive drive Micro LED display module - nStar I, Nationstar has launched the second generation of new Micro LED - nStar II. nStar II is a 3.5-inch glass-based Micro LED full-color display with a pixel pitch of 300 microns (P0.3). It uses TFT drive to achieve a display effect of 8bit (256 grayscale) color depth. Based on the self-built Micro LED technology innovation R&D platform, it has broken through the double technical problems of mass transfer and mass bonding, and its comprehensive yield rate has increased to 99.99%. Relevant technical achievements are expected to be widely used in high-definition display products such as large-size splicing smart screens in the future.
The nStar II glass-based active drive Micro LED display is to bond the Micro LED microchip to the glass substrate through mass transfer technology, and use TFT drive to achieve high-definition screen display. TFT glass substrates, which can obtain ultra-fine circuit structures over a large area, are an ideal technology choice in the iterative process of integrating processes towards smaller and higher-density LED chips. The active driving TFT backplane can not only realize the independent control of the pixels of the Micro LED module, avoid the crosstalk of the driving pixels, but also greatly reduce the power consumption while improving the display brightness uniformity of the module.
As a leader in LED packaging technology, Nationstar has established the Guangdong Provincial Key Laboratory of Semiconductor Micro-Display in 2020 since it took the lead in establishing the Mini & Micro LED Research Center in China in 2018. It aims to strengthen cooperation with academia and industry, join forces with the upstream, midstream and downstream links of the industry chain, concentrate superior resources to overcome technical problems in the micro display industry, work together to break the bottleneck of technological development, and jointly promote the process of Mini/Micro LED industrialization.
At present, Nationstar has made breakthroughs in a number of key technologies in the field of Micro LED, such as mass transfer, eutectic bonding, full-color quantum dots, inspection and repair, and high-reliability packaging, and has applied for 100 invention patents in the field of Mini/Micro LED. remaining pieces. Next, Nationstar will develop a new micro-display track. In terms of glass-based Micro LED technology, it will focus on high-end smart screens, vehicle-mounted displays and smart watches; in terms of silicon-based Micro LED technology, it will focus on AR display.
In the digital age, the display industry has become a key cornerstone for upgrading information consumption, expanding the digital economy, and developing the electronic information industry. The era of Mini/Micro LED is coming.
At present, the new LED display technology of Mini/Micro LED is developing rapidly, upstream and downstream enterprises in the industry chain are accelerating their actions, and TV manufacturers and mobile phone manufacturers have also set foot in the Mini/Micro LED field. It is foreseeable that the competition in the Mini/Micro LED field will be more intense in the future. It can be seen that with the strong support of national policies and the unremitting efforts of industrial chain enterprises, Mini/Micro LED has entered a new stage of high-quality and rapid development, and the industrial structure will also change accordingly. In the future, with the continuous expansion of application scenarios, the gradual release of production capacity, the continuous maturity of technology, and the gradual reduction of costs, the Mini/Micro LED industry will usher in greater development space.
Post time: Sep-09-2022