According to the "China New Display Industry High Quality Development Index (2023)" released during the 2023 World Display Industry Conference, the scale of China's display industry continues to grow, driving the rapid development of upstream materials industry. Under the further guidance of policies, the LED display industry is constantly evolving and growing through continuous breakthroughs, and the entire industry chain is becoming increasingly closely coordinated. In addition, significant progress has been made in the research and production of key materials such as Micro LEDs. Next, we will take a look at the latest policies and breakthroughs in technology, and gain a glimpse of the latest developments in the industry.
Continuous progress in the application of Micro LED technology
As the year approaches and the LED display industry fully recovers in the first half of the year, Micro LED investment and financing are booming, and technology applications are flourishing. The application of Micro LED technology in the display field has become more mature, and the market prospects are highly optimistic. National policy support and corporate investment efforts continue to strengthen. Driven by enormous market potential, relevant enterprises are continuously increasing their investment in the direction of Micro LED displays, accelerating the industrialization process of Micro LED. Meanwhile, as Micro LED displays move towards mass production, domestic and foreign technologies related to them are continuously breaking through. Let's take a look at the new technologies that have been upgraded in the market research and development recently? And what new changes will these new technologies bring?
Quick detection technology for 2-in-1 Micro LED display modules
Assist the industry in overcoming difficulties in mass production
According to the Taiwan Economic Daily, the Taiwan Industrial Research Institute has recently focused on two core points: color correction and optical detection, and successfully developed a high-precision two in one "Micro LED display module rapid detection technology" that can simultaneously detect color and light source angles. Due to the small size of Micro LED, the camera pixels of traditional display measurement equipment lenses cannot meet the detection requirements. The R&D team of the Taiwan Institute of Industry and Technology uses "repeated exposure color correction technology" to achieve color balance of Micro LED panels through repeated exposure, and analyzes color uniformity through optical correction technology to achieve accurate measurement.
The Taiwan Institute of Industry and Technology has successfully developed a high-precision two in one "Micro LED Display Module Rapid Detection Technology" with the support of the technical department. With a two-stop rapid analysis of the color uniformity and angle rotation characteristics of micro light sources, it provides customers with customized testing of various new products, and improves the measurement efficiency by 50% compared to traditional equipment. We hope to improve our technical testing to assist the industry in breaking through mass production difficulties, Entering the next generation to display a new world.
Independently adjustable dual layer Micro LED array
Expected to develop RGB full-color Micro LED products
It is reported that the micro display research team led by Professor Jr Hau HE from City University of Hong Kong and his derivative company Rayleigh Vision has made significant progress in Micro LED technology, overcoming the limitations of current Micro LED technology. The team showcased its stacked light-emitting unit manufacturing technology and launched a new double-layer Micro LED array, with each layer capable of independent color adjustment.
The team's Micro LED stacking process has been preliminarily validated, and it is expected to develop RGB full-color Micro LED products in the future. Ruili Guang stated that the advancement of Micro LED technology is expected to double or more the pixel density of current flat panel display devices. Display devices have the characteristics of high contrast, high brightness, wide color gamut, high efficiency, low power consumption, and long lifespan, making them suitable for widespread applications in entertainment, consumer electronics, and professional industries.
New Progress in Micro LED Luminescence Efficiency
Quantum efficiency can reach 90%
According to South Korean media reports, the Korea Institute of Photonics Technology (KOPTI) has announced the successful development of highly efficient and fine Micro LEDs. The internal quantum efficiency of Micro LEDs can be maintained within a range of 90%, and is not affected by chip size and different injection current densities.
The research institute stated that the characteristic of the technology developed this time is to solve the phenomenon of rapid decrease in luminous efficiency caused by chip size reduction and the phenomenon of decrease in luminous efficiency caused by increased injection current, which is a challenge for inorganic Micro LEDs. KOPTI introduced that the research team has reduced stress in the epitaxial layer, improved luminescence efficiency, and suppressed physical stress changes in Micro LEDs under any external electric field or structure through a new structure. Therefore, even if the size of Micro LEDs is reduced, the new structure can still significantly reduce surface non luminous recombination losses and maintain high luminous efficiency, without the need for passivation processes. The low-power and high-efficiency Micro LED developed this time is the best light source for ultra-high resolution displays, and is expected to accelerate the commercial development of ultra-high resolution displays in the future.
Policies promote the development of LED display industry
Currently, China attaches great importance to the development of strategic emerging industries represented by the new display industry. The new display industry is a strategic industry that supports the sustainable development of China's information industry. It has a long industrial chain, strong driving force for upstream and downstream industries, and a wide range of radiation. It is of great significance for the improvement of industrial structure and the transformation of economic growth mode. Recently, various regions have successively introduced relevant policies to encourage the development and innovation of the new display industry. Multiple new policies involve the LED display industry, providing a good production and operation environment for LED display enterprises. What are the specific ones? Let's take a look together!
Chongqing formulates an action plan to promote the industrialization of Mini/Micro LED
Recently, the Chongqing Municipal Economic Information Commission has formulated the Action Plan for High Quality Development of Chongqing's New Display Industry Cluster (2023-2027). The Plan proposes that by 2027, the comprehensive strength of Chongqing's new display industry will significantly enhance, and a new display innovation development highland with global influence will be built.
Among them, regarding the acceleration of industrial supply chain strengthening, the document proposes to optimize the existing panel production capacity and accelerate the industrialization of Mini/Micro LED. Promote leading enterprises to grow and strengthen, support TFT-LCD production lines to stabilize production capacity and increase efficiency. Accelerate the production line of the 6th generation AMOLED flexible display panel to reach production capacity and increase efficiency, promote the full release of production capacity, and increase the value of individual products. Promote the production of Mini/Micro LED new display device production line projects, accelerate the industrialization process of core technologies such as Micro LED chip epitaxy, array backplane, massive transfer, full-color, and driver IC, and build the first mover advantage of the next generation new display technology with MLED as the core. In promoting industrial collaboration between Chengdu and Chongqing, the document mentions strengthening the planning and collaboration of the new display industry in Chengdu and Chongqing, encouraging enterprises in both regions to strengthen cross regional cooperation, focusing on flexible displays, Mini/Micro LEDs, and other fields, and jointly carrying out forward-looking research on new display specific equipment, key materials, and other related fields.
Jiangsu Metaverse New Policy, Focusing on Micro LED and Other Technologies
It is reported that the Jiangsu Provincial Department of Industry and Information Technology, the Department of Education, the State owned Assets Supervision and Administration Commission of the Department of Culture and Tourism, and the Radio and Television Bureau jointly issued the "Three Year Action Plan for Innovation and Development of the Metaverse Industry (2023-2025)". The Plan proposes that by 2026, the scale of the metaverse industry will reach a new level, the core competitiveness will be further enhanced, and the application level of industrial metaverse will be leading nationwide. The scale of the metaverse industry will exceed 100 billion yuan, and Jiangsu will be built into a highland for the integration and innovation development of the metaverse industry.
Among them, in the field of near eye displays, the focus is on breaking through technologies such as silicon-based OLED (organic light-emitting diode) colorization, Micro LED (micro light-emitting diode), and diffractive optical waveguides. Forward looking layout of light field display, holographic display, etc., accelerating the development of near eye display towards high resolution, high brightness, lightness, and large field of view.
