Flat panel display industry has become a large-scale industry, now the main industry is the liquid crystal display industry. Should be recognized in the relevant core technology in China is basically not independent, flat panel display industry at the very passive situation. China is a large flat panel display industry, the country should seriously sum up experiences and lessons to explore the next stage of development opportunities and ideas. China’s flat panel display industry, how the future development of Chinese Academy of Sciences, Mr. Gan Zi-Zhao said in an interview from China’s development of flat panel display industry situation, OLED and at the same starting line with international standards; from strategic development, we now Only the development of OLED is possible to gain the initiative in the future.

AM-OLED development will focus on two main points

OLED technology and our advanced international level there is a large gap between

Increase the display area is a comprehensive problem

The development of next-generation flat panel display industry is a mainstream organic light-emitting diode (OLED) flat panel display technology. Match the current main drive technology is the low-temperature polysilicon (LTPS) thin film transistor active (or active, abbreviated as AM) drive technology. In other words, based on LTPS-TFT’s AM-OLED technology will become mainstream next-generation flat panel display technology. Gan Zi-Zhao academician, said that in the last century to develop 90 years, the United States, Japan, Korea and Taiwan of China into a considerable force, started a number of smaller areas of product development. Currently in the market has started a small area of the AM-OLED display products, evident than the liquid crystal display products with better performance, but to gain market advantage has yet to be a breakthrough in technology.

My 90 years in the last century more emphasis on the OLED research, carried out a certain amount of application development. However, the development of OLED flat panel display technology from the perspective of the international advanced level in China and there is a considerable gap. Gan Zi-Zhao academicians believe that our OLED research itself is more of the chemical physics research materials, the first domestic production line of passive PM-OLED materials are from the chemical research units. TFT (Thin Film Transistor) of 80 in the last century there have been some good domestic work, 90 since become very weak, LTPS-TFT of basically not been conducted. The main production equipment is introduced by. So, if you do not timely and comprehensive co-ordinate the introduction of foreign technology, pay close attention to digestion and absorption, accelerate the pace of innovation, China’s flat panel display in this important area in the repetition of the potential is there.

From the LCD (liquid crystal display) technology development perspective, increasing the display area that is often said that the “generation” upgrade, is a key issue because it is directly related to the use of the scope and cost. Gan Zi-Zhao academicians believe that in the next few years, the AM-OLED display technology, will be the case. AM-OLED development will focus on two issues: Increase screen area and full compared to the advantages of LCD display technology. To increase the size, the need to develop a large area of organic materials, coating technology, strategy ensures the composition,interface states and corresponds to the optical electric Jun Yun Xing Xing Zhi’s large area, Haiyaobaochi the compatibility with other process of This is a comprehensive problem. Has now been adopted organic thermal evaporation technique, organic vapor deposition, inkjet printing, laser thermal transfer technology, but many problems still exist and can not simply copy. The problem is not purely scientific process, but the choice of organic materials, doping, heat treatment, irradiation, electrical contact, device structures, especially thin-film transistor is closely related programs and processes.

Basic theory should be combined with the industrialization

Large LTPS-TFT AM-OLED display technology is the key challenge

Fundamental research should be combined with production

Thin-film transistor (TFT) is shortly after the invention of the transistor (50’s of last century) began to study a class of semiconductor devices, the real industrialization in the 80s of last century, is to meet the demand for LCD technology to develop. Gan Zi-Zhao Academy believes that the current LCD technology is commonly used in amorphous silicon thin film transistor (a-SiTFT) technology. With LCD technology, to improve the efficiency of backlight source of light, lower power consumption and improve image resolution and brightness, the development of a low-temperature polysilicon thin film transistor (LTPS-TFT) technology. In recent years, LTPS-TFT developed rapidly.

Gan Zi-Zhao academicians believe that a large area is the next step in the development of LTPS-TFT AM-OLED display technology, the most critical challenges. The challenge is integrated directly linked to the number of frontier issues. This Ganyuan Shi suggested that the state as soon as the relevant departments to set up a special fund to support domestic universities and research institutions to study the large area LTPS-TFT technology, access to fundamental results, and rapidly transferred to the National Engineering Laboratory to conduct the test, obtained in the test After the success of large-scale production quickly.

Currently, in addition to using LTPS-TFT technology, with the oxide material TFT technology has developed. Gan Zi-Zhao academician, said that from the physical, oxide materials have the potential of the TFT technology. However, in the near future, or LTPS-TFT technology most likely practical, so our focus should be on this.

Gan Zi-Zhao academician stressed that in this round of LTPS-TFT technology research and development, we must resolutely reject the “paper-oriented” research methods. Xiamen University, Professor Wu Boxi that reform and opening up, the basic theory of semiconductor Institute and University in a number of years are valued and supported, with good results, but there are highbrow, and loose integration with the production of defects in production , the traction by the market economy, production line to bring in another one, so that almost all of our original semiconductor transition or discontinue or foreign buyout. In our territory, foreign use of our manpower to the international market to earn profits, and our business is competitive.

Absorbing the path of introducing innovative road again

AM-OLED technology there is room to improve

Patent applications, equipment, research attention should be

Study in Japan, Korea and Taiwan of China’s historical experience in the development of flat panel display industries in Mainland China is very important. Gan Zi-Zhao academicians believe, LCD technology, TFT technology, OLED technology, LTPS technology, basic research and original research, are not the first in Japan and Korea. But Japan, South Korea and Taiwan region of China from the West to learn these techniques Hou Yin Jin, faster way to Bianchengziji own skills are, De Dao good development, should Shui Mu Qian they represent the world’s highest in the 水平. These are the last 20 years to 30 years in the history around us. Can not simply lag behind our technology infrastructure, lack of funds, etc. to explain. Recalling the historical experience, should make us understand how scientific research, how to understand scientific and technological innovation, how to handle the introduction of technology and how to understand basic science and applied technology, among other issues, many of inspiration and knowledge.

Currently, AM-OLED display technology is evolving rapidly in the near future, there is scope to capture the market, even as a “post-LCD” flat panel display technology era of the mainstream is very possible. China has many departments and enterprises recognized this trend and is actively imported from Japan, Korea and other technologies, but will not again repeat the mistake then the development of LCD technology, it is worth our consideration. Therefore, Gan Yuanshi suggestions:

First, should now actively introducing foreign AM-OLED display technology, including LTPS technology. Currently a small area of foreign products has been launched to introduce the relevant technology can shorten the process of exploring our own. But noted that the introduction of the current technical solutions may not be the last large-scale technical solutions. Foreign products have been after in the market because of cost, yield, using the example of cut-off effects and other reasons, so be careful introduction, the main focus is to learn, not to raise too high expectations of economic benefits.

Second, the introduction of foreign technology, we must organize domestic forces to carry out serious research. From the status of the development of this field of view, there is certainly room for development of technology, there are many technical issues to be a breakthrough. If we can seize the opportunity in China, study, and research to business needs as the key link, focusing on large-scale AM-OLED display technology, a comprehensive organization of the forces of national research, there are still some chance.

Third, the full attention of competition in the patents. New high-tech industries are critical patent competition. In the AM-OLED and LTPS technology, international competition is particularly severe patent. Small molecule-based OLED materials, the patent covers the situation is particularly serious, amorphous technology as well. Now that we have recognized that this area would be eased scale industries, China is the field of the great Powers, must be planned Zuzhi good work in this area, take precautions.

Fourth, the attention-related process equipment and test equipment development. In the process equipment and test equipment, China is relatively backward situation is a major cause of many difficulties. Should be combined with the progress of research and development, determined to gradually reverse this situation.

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