Discussion on OLED development status and advantages and disadvantages

From the current point of view, OLED applications are mainly used in display screens and specific areas. However, the actual lighting efficiency, price and production capacity of OLED in lighting applications are changing rapidly at present. China's lighting industry is still lagging behind Europe, America, Japan and South Korea in development, the government is needed to support this future industry. Under the current situation that China is facing supply-side reform, OLED new light source visited Frankfurt lighting exhibition this year, 4. 0 and 4. The display of OLED lighting products in Hall 1 has pushed the application of this increasingly mature light source technology in the lighting field to the forefront. In particular, OLED's soft, light and thin feeling and futuristic light make the lighting designers present excited and fond of it. From the current point of view, OLED applications are mainly used in display screens and specific areas. However, the actual lighting efficiency, price and production capacity of OLED in lighting applications are changing rapidly at present. China's lighting industry is still lagging behind Europe, America, Japan and South Korea in development, the government is needed to support this future industry. Under the current situation that China is facing supply-side reform, the positive development of OLED new light source is a very important part. The luminous efficiency and production capacity of OLED lighting. At present, the luminous efficiency of OLED mainly depends on its use direction. Generally speaking, the luminous efficiency of color series OLED panels can only reach about 5lm/W; White light is 30- About 40lm/W, some efficient enterprises such as Sumitomo Chemical can reach 60lm/W. Of course, OLED's luminous efficiency is developing very rapidly, especially in the United States, which can reach 150lm/W in technology. OLED's luminous efficiency is just around the corner to catch up with LED. In addition, OLED has a comparative advantage over LED light source in terms of the need for floodlight sources. The demand for large-scale floodlight in the future is bound to be a large market for OLED. For example: office lighting, advertising and display lighting, etc. At present, OLED is not widely used in lighting, mainly displays. According to rough statistics, the current output distribution of OLED is that Samsung accounts for 60, Japan accounts for 10, Taiwan accounts for 10, South Korea's big factory LG currently accounts for 6, but Japanese manufacturers, the recent large-scale expansion in the OLED field is expected to increase production capacity in the future. In China, BOE is the mainstay, and some display companies are developing OLED, but the development of OLED for lighting is relatively slow in China. In terms of area, although the current OLED production capacity is about 1 million square meters, it is growing in multiples in the foreseeable future. It is estimated that the production capacity will reach 7 million square meters in 2018. The price and sales of OLED products are divided into hard and soft in terms of lighting. Most of the soft products adopt 10*10 cm or 12*12 cm specifications. According to such standards, the price is within this year, will reach 10 of the current price (Based on information provided by Sumitomo Chemical) That is to say, the price of small-sized OLED will soon reach a stable and unaccepted level in the market. OLED products were probably the benchmark of $100 per square foot two years ago. At this stage, LG has reduced the price to 20-per square foot- $30, the price of Japan, Philips, Taiwan and other manufacturers is still 60- 70 US dollars per square foot, but Sumitomo Chemical said that the price per square foot will be reduced to about 10 US dollars in the future. The current sales are mainly based on conceptual display, such as the application of OLED automobile lamps at the Frankfurt exhibition, as well as related tentative lighting products such as wall lamps, desk lamps and other office lighting products, but there is still a distance from practical application. Therefore, the sales share of OLED lighting applications is very small at present. OLED in Europe, the United States, Japan and other places are all products. However, Sumitomo Chemical believes that the price will drop to 10 in the next nine months, when lighting applications will be quite common. Although the application of OLED lighting has not been seen in the market for the time being, there will be a large number of OLED in 2018 and 2017 in the visible future. OLED faces technical obstacles in reducing costs. It is mainly the setting of specifications and the improvement of production capacity. The problem of capacity increase is relatively easy to solve. Looking at the development of OLED in China, the main bottleneck is that the mastery of core patents and technologies fails to keep up with the international level, I . e. the power and practical application fail to reach the international level. However, Taiwan's AUO, mainland Boe, Tianma and other companies are actively developing their own OLED technology, which shows that there will be certain breakthroughs in cost and technology in the coming year. Therefore, the government's active investment and support is a necessary condition for the development of OLED industry in China. The price of OLED will reach the same level as that of LED in recent years. In the next two years, OLED and LED will have different advantages in different fields. When the price of OLED reaches 10 US dollars per square foot, it will have comparative advantages over LCD, LED and other light sources in some application fields. The emergence of OLED lighting products is regarded as the fourth lighting revolution. Countries all over the world have been competing for development. European and American manufacturers have strong Technologies, South Korea has strong support from the government, and Japanese enterprises have joined forces, all have strong competitiveness. The author believes that OLED industry, like LED industry, must receive full support and support from the government to form a complete industrial chain, because OLED is also a capital-intensive and technology-intensive industry. Specific to the OLED lighting industry, it must be combined with each other. If we can develop a product with a fixed specification, in the practical application of lighting designers, we can understand materials from the design level, think about how to apply OLED to lighting devices to achieve more complete application. In addition to LED, OLED is also a very important part of smart home. It will be a lighting industry that has been fully applied in smart home. I am very optimistic about the development of OLED. In particular, when the price and production of OLED are stable, interior designers will be very willing to apply such materials to design projects because they are light, light, short, and can achieve special effects, all meet the designer's requirements.