▲Low-reflective Micro-LED transparent display developed by Tianma. (Photo provided by Xiamen Tianma)
How can a transparent screen ensure that the display effect is not affected by light? At the 2023SID (Society for International Information Display) Display Week held not long ago, Tianma Microelectronics demonstrated the industry's first 9.38-inch Micro-LED display with adjustable transmittance - the transmittance can be adaptively adjusted according to the intensity of ambient light.
Behind "Dancing with Light" is Tianma's leading layout in the field of Micro-LED display. Tianma New Display Technology Research Institute, located in Xiamen Torch High-tech Zone, is Tianma's research and development platform for Micro-LED technology.
At present, Tianma New Display Technology Research Institute is intensively promoting the construction of a full-process Micro-LED experimental line, forming independent intellectual property rights and mastering mass production technology by opening up the core Micro-LED process.
Constructing an experimental production line is a complex and systematic project. Qin Feng, director of the Tianma New Display Technology Research Institute, said that they will make full use of Xiamen's resource endowment and comparative advantages in the display industry, link upstream and downstream industry chains and cutting-edge scientific research institutes, gather resources through the ecosystem, make good moves in technological innovation, and help Xiamen build a new display industry highland.
Concentrate on tackling key problems. "Mass transfer" technology is a key part
As one of the most cutting-edge display technologies today, Micro-LED can be said to be the "hexagonal warrior" of the display family. It has the advantages of high brightness, high contrast, long life, low power consumption, etc., and can achieve seamless splicing effects.
However, the commercialization of Micro-LED still faces the problem of high cost. The reason is that there are many technical bottlenecks that need to be solved. Among them, "mass transfer" technology is a key part. The so-called "mass transfer" refers to "the process of accurately and efficiently moving millions or even tens of millions of micron-sized LED chips to the circuit substrate."
This technical problem is the focus of Tianma New Display Technology Research Institute. Qin Feng said that relying on Tianma's world-leading LTPS TFT backplane technology, the institute focuses on the development of mass transfer-related technologies based on TFT substrates such as mass detection, mass bonding, mass repair, and packaging module processes, focusing on improving the efficiency and success rate of transfer.
"Scientific research is a process of continuous trial and error. After repeated trials and demonstrations in the early stage, our process route is currently being continuously focused, laying the foundation for subsequent experimental line lighting." Qin Feng said.
String beads into a chain. Implementing an experimental line covering the entire process
The Micro-LED industry chain is long and the technical threshold is high. For Tianma New Display Technology Research Institute, the key point is to implement an experimental line covering the entire process, connecting upstream and downstream, and connecting the supply chain.
In Qin Feng's view, Xiamen's relatively complete industrial ecology provides a steady stream of momentum for the "stringing of beads into a chain" of experimental lines. "Xiamen's flat panel display industry has a good foundation and obvious advantages in aggregation. For example, in the field of LED chips, which is the core link of the industry chain, leading companies such as San'an, Qianzhao, and Silan Micro are gathered. This not only facilitates nearby supporting facilities and shortens the radius of the supply chain, but also helps improve the development efficiency of experimental lines."
Qin Feng introduced that Tianma had previously taken the lead in launching the Micro-LED Ecological Alliance, which brought together the power of upstream and downstream industry organizations to promote technological research and thereby promote the agglomeration, healthy and sustainable development and commercial application of the Micro-LED industry.
While cooperating with upstream and downstream companies to innovate, Qin Feng also leads his team to frequently participate in industry summits and conduct in-depth research on terminal application companies such as car manufacturers to capture new trends in the consumer market and carry out R&D and design based on customer needs.
The market is changing, demand is changing, products are changing, but what remains unchanged is the spirit of innovation and victory. Qin Feng said that with the advent of the era of "everything displays", displays will empower thousands of industries, integrate more functions, and derive more forms. Tianma New Display Technology Research Institute will also keep up with the changes and expand the boundaries of display applications with technological innovation.
【Business Card】
Tianma New Display Technology Research Institute
Tianma New Display Technology Research Institute was established in July 2022 with a total investment of 1.1 billion yuan. This project relies on Tianma's world-leading LTPS TFT backplane technology to build a full-process Micro-LED experimental line in Xiamen from mass transfer to display modules.
Tianma has been laying out Micro-LED technology since 2017, and has now completed the development of many types of forward-looking technologies, which can be widely used in automotive, splicing, aerospace and other fields. At present, there are many transparent, splicing, flexible and other Micro-LED display products that have won many achievements and innovation awards. It is an industry leader in transparent TFT backplane and borderless TFT backplane technology, and has more than 100 patented technologies.
【Reporter's Notes】
The "leading head" dances
The innovation industry chain comes alive
In this interview, two keywords impressed the reporter deeply.
The first is "frontier". Qin Feng, president of Tianma New Display Technology Research Institute, has been deeply involved in the display industry for nearly 20 years and has witnessed the process of domestic display manufacturers from introduction, digestion, absorption and then innovation to independent innovation. He has a deep understanding of the importance of forward-looking layout of cutting-edge technologies. As he said, "In the face of a rapidly changing market, you must be one step ahead to win the opportunity. The institute's establishment of a full-process Micro-LED experimental line is Tianma's timely move to seize the commanding heights of the development of the new display industry."
The second is "integration". Although it is a research institute set up by an enterprise, in terms of construction ideas, Tianma New Display Technology Research Institute is more like an innovation consortium: on the one hand, it will attract domestic and foreign leading enterprises, top universities, and scientific research institutions to settle in or cooperate to create an innovation mechanism for the development, sharing and integration of enterprise innovation resources; on the other hand, it will integrate domestic and foreign cutting-edge research results with Xiamen's display industry by cultivating a group of localized high-level Micro-LED display technology R&D teams.
Only when the "leading" dances, can the innovative industrial chain "live". We look forward to more innovative platforms like Tianma New Display Technology Research Institute emerging to create new growth poles and power sources for high-quality development.
(Xiamen Daily reporter Lin Luhong)
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