Technological innovation realizes the OLED industry to take off

OLED (Organic Light Display, Organi cLight Emitti ng D is -play) refers to the technology of organic semiconductor materials emitting light under the action of an electric field. It is an all-solid structure, active illumination, and no backlight is required. Compared with LCD (liquid crystal), it has many advantages, such as high brightness, high contrast, ultra-light and ultra-thin, short response time, no viewing angle limitation, low power consumption, good shock resistance, wide operating temperature range, and soft display. Wait. OLED is considered by the industry to be one of the most promising new display technologies and a hot spot in the international high-tech field.

    Tsinghua University began research and development of OLED technology in 1996. In 2001, Visionox was established to carry out production technology development and production line design and construction. In the course of more than ten years of development, Visionox has worked closely with Tsinghua University to penetrate the entire process of laboratory research and development, pilot technology development and mass production. The system mastered the key technologies of OLED materials, devices, processes and driving. The first large-scale OLED production line in China was designed and built in 2008. It completed the transformation of OLED technology from laboratory research to large-scale production applications.

Figure 1: Mr. Zhang Deqiang, Vice President of CIGNA

OLED: a leading technology application

Through close cooperation with Tsinghua University and its own strong R&D team, Visionox has strong OLED technology strength and continuous innovation capabilities. They have successfully developed new electronic injection technologies that have broken through the limitations of foreign patents. The international adoption of organic and inorganic composite technology has greatly improved the efficiency and longevity of the device. Successfully developed a variety of monochrome, multi-color, color OLED display products, the performance has reached the international advanced level. It has pioneered the introduction of transparent dot matrix OLED products and double-sided display OLED products in the world, and successfully solved key technical problems such as high brightness, anti-electromagnetic interference, anti-vibration and anti-mechanical impact. The product has been successfully applied to the "Shenzhou 7" extravehicular space suit (Figure 1). The company built the first large-scale OLED production line in China, breaking the passive situation of China's display industry relying on technology introduction. At present, the company's OLED products have been used in consumer electronics, instrumentation, aerospace and other fields, customers not only include well-known domestic companies, but also exported to Europe, South Korea and Japan and other international markets. In 2009, Tsinghua University and Visionox jointly completed the organic light-emitting display (OLED) materials, devices and industrialization projects won the first prize of the China Electronics Society Electronic Information Science and Technology Award, the highest award for scientific and technological achievements in China's electronic information industry. . Although OLED is a new generation of flat panel display technology, it is in the early stage of industrialization, but it has broad application prospects in the future. It can be used not only in the display industry, but also because of its large-area film formation, low power consumption, no stroboscopic, soft and bendable, etc. OLED is also an ideal planar light source, which is also widely used in the future energy-saving and environmentally-friendly lighting and light source fields. Application prospects. Depending on the driving method, there are two types of OLEDs, one is a passive driving type OLED (PMOLED), and the other is an active driving type OLED (AMOLED). The development of medium and small-sized OLEDs is the first stage of the development of OLED technology industry. The development of future technologies and industries includes three directions: development of high-quality, ultra-thin, large-size AMOLEDs based on PMOLED; development of planes and provinces A new generation of lighting sources with soft, soft light; the development of low-cost printing preparation techniques and bendable flexible devices. From the application field, OLED products are mainly used in consumer electronics such as mobile phones and MP3s, as well as small and medium-sized display fields such as industrial control instruments, medical devices, and vehicle displays. With the advancement of technology, the application of OLED products in the future will be expanded to large-scale fields such as computers and color TVs and lighting. While developing and industrializing small and medium-sized OLED technology, Visionox is also actively promoting the development of OLED cutting-edge technology. In terms of OLED soft display, Tsinghua University and Visionox are among the few units that can produce flexible OLED display devices and flexible lighting devices. At present, Visionox has made a comprehensive layout of AMOLED technology research and development and industrialization, and plans to achieve large-scale production of AMOLED in the next 2-3 years. In the field of lighting, Visionox has launched OLED decorative lighting products, and plans to enter the field of lamps and other lighting in recent years, plans to achieve large-scale production of OLED white light lighting devices within 2-3 years.

Figure 2: Visionox products are used in space suits

Industry-University-Research Cooperation, Realization of Scientific and Technological Achievements, Industrialization, Science and Technology Innovation

Visionox always regards continuous innovation as the core competitiveness of the company's development. They believe that the focus of global OLED industry competition in the future is still on technology. Only by strengthening the awareness of independent innovation can enterprises promote the development of the industry by mastering core technologies. In the development process of the company, Visionox promotes technological innovation of the company in many aspects.

1) Continuously increase the research and development of OLED technology and actively carry out research on next-generation OLED technology. In order to cope with the increasingly fierce market competition, Visionox strives to promote independent innovation with the goal of industrialization, and at the same time strengthen research and development of process technology. While developing small-size OLED technology and industry, Visionox continues to promote the development of innovative technologies and products such as OLED soft display, transparent display, double-sided display, and large-size display (the product effect is shown in Figure 2). One of the most competitive and most important OLED product suppliers.

2) Create an interdisciplinary R&D team. As a new display technology, OLED technology covers many disciplines such as chemistry, materials, electronics, and physics. It requires people with multiple disciplines and different technical backgrounds to solve the comprehensive problems faced. Tsinghua University and Visionox's OLED technology team focused on solving interdisciplinary issues from the beginning of the project, and recruited R&D personnel in different fields including chemistry, materials, electronics, etc., and formed an interdisciplinary and technical background R&D team.

Figure 3: Company organic light-emitting display materials

3) Achieve technological breakthroughs through school-enterprise cooperation. At present, the company has established a long-term cooperative relationship with Tsinghua University. The company has also established its own R&D center. Through the combination of school and enterprise, it has realized the effective integration of resources, effectively promoted the technical research aimed at industrialization, and accelerated. The transformation of research results into industry.

4) Increase the protection of independent innovation achievements. Since the establishment of Visionox, it has attached great importance to the protection of independent innovation achievements, established a special intellectual property department, and established an intellectual property system including patents and standards. So far, Tsinghua University and Visionox have applied for more than 200 domestic and foreign patents (including more than 30 international patents), and more than 80 have been authorized. Tsinghua University and Visionox are important players in OLED international standards and the main creators of OLED national standards. At present, the international standards for "Test methods for optical and optoelectronic parameters of organic light-emitting diode display devices" under the responsibility of Visionox and Tsinghua University were released in May 2009. Visionox also completed two national standards for "Organic LED Display Nomenclature and Terminology Standards" and "Organic Light-Emitting Diode Display Optical and Photoelectric Parameter Test Method Standards" with Tsinghua University.

Visionox's OLED market development strategy

China has a huge consumer market with huge market potential. The OLED industry, as a new generation of flat panel display technology after CRT (CRT) and LCD, has great potential for development in the future. When talking about the company's development strategy, Mr. Zhang Deqiang, vice president of Visionox, pointed out: "Because the national high-tech enterprise, Visionox always regards "taking science and technology innovation to lead China's OLED industry" as its mission, and "expanding the horizon, Promoting human visual enjoyment as the company's vision. In 2009, the first year of the first domestic OLED mass production line built by Visionox and Tsinghua University with independent technology, the company continued to deepen the development of independent innovation technology, globally. In the economic winter of the financial crisis, products are still guaranteed to enter the domestic and foreign markets quickly. At present, Visionox has developed more than 30 products and more than 100 derivative products. The company's OLED products have been recognized by customers for their excellent performance in industrial control instruments. , financial information products, medical equipment, coal mine safety products, intelligent monitoring systems, consumer electronics (mobile phones, MP3) and other fields have been applied. In the report of the OLED global shipments of the authoritative market research organization DisplaySearch in the fourth quarter of 2009, Visionox OLED products rank fifth in global shipments and the first in mainland China The family has entered the top five companies in the world."

The 75th CEF Exhibition will hold the 2009 China Electronics Society Electronic Information Science and Technology Awards Conference. The organic light-emitting display (OLED) materials, devices and industrialization projects jointly completed by Tsinghua University and Visionox will be awarded. Awards and showcase related products in the award-winning exhibition area.

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