Are there any misunderstandings in LED phosphor patents and products?

Recently, the number of friends in Japan and the number of patents in Japan are far ahead. In fact, the number of patent rights cases from Japan in 2016 is a glimpse of the number of patent rights. This article is not written in the case of Japan's patent rights case in 2016. It is not how powerful Japan is on LED patents, but when we are in this situation, we do not know the status quo and ignore what we should know. In order to make a deeper analysis of the misunderstandings in LED phosphor patents and products, LEDinside consulted Dr. Liu Ronghui, who had research on rare earth. Misunderstanding one: the patent barrier is known as phosphor powder. The phosphor patent has always been an important force affecting the LED industry. The patent litigation case of phosphor has a great influence on the whole LED industry. In particular, in recent years, the role of Japan's Asia chemistry from low-key research to the role of high-profile rights changes, "pick" a number of patent cases, and upgrade the patent war, causing some LED manufacturers' worries. The intensification of this patent rights war has resulted in a misunderstanding of patent infringement, which is caused by phosphor powder, but it is not the case. Although phosphor is one of the key materials for LED encapsulation, it is only one of the necessary components of the white light device. In addition to a few new types of nitride, such as phosphor, in fact, other phosphor alone is not a tort. Misunderstanding two: the application type patent is not very important in the current LED phosphor patent war. By obtaining the new phosphor composition and structure and the application patent, it is indeed an important way to solve the patent of the foreign white light device, and many enterprises are basically using this way to control the foreign invention patents, and also take it. A certain effect has been achieved. But the market comes out that this kind of patent is not useful and does not play a substantial role, but it is not. In essence, any patent protects the intellectual property, but it does not limit the innovation of the later. It is shown that although foreign countries have made the first opportunity in the field of phosphor and white light LED devices, it does not interfere with the subsequent acquisition of intellectual property rights by relevant domestic units. As for patents, we have to do what we need to respect existing intellectual property rights, but we can't talk about intellectual property and color change. Any patent has its limitations, and the technology involved is constantly improving. It is possible to break through the limitations of the existing patents through subsequent technological innovation. In this regard, Dr. Liu Ronghui, a researcher of rare earth, said that the individual does not think that the subsequent patent for domestic application is useless, even if it is a utility model with low gold content, as long as it is of applied value, it has a role in improving the performance of the product, which is a valuable patent. From the perspective of the application of the domestic phosphor patent, the patent application in the field of LED fluorescent powder is very active in recent years, and the patent application is mainly applied by the original universities and scientific research institutes, and it is gradually transferred to the enterprise to attach importance to the patent application, which is very important for the promotion of the patent strength of the Chinese phosphor powder and even the LED device domain. Misunderstandings three: it is a good idea to transmit a kind of Japanese thing at home without good fluorescent powder from Japan to buy a toilet cover event in Japan, but people in the LED industry don't know the essence of the matter. A lot of people say that the fine degree of domestic products can not reach the foreign countries, but it is not the domestic do not, but because the domestic market is mainly based on the cost performance. From the raw material, the main rare earth raw materials used in the manufacturing of LED fluorescent powder in the world are made in China, which is at the same level at home and abroad. However, the selection and control of raw materials in foreign countries is very strict in order to ensure the quality of the products. Because of the different market environment, the domestic customers pay attention to the price ratio, the choice of raw materials is larger, and the standard of the raw material suppliers is wide. In order to control product consistency, most of the raw materials produced by LED phosphor are self-made, such as the core materials of LuAG, nitrogen compounds and fluorides. Take the current equipment kiln, the market comes out of most of the domestic kiln temperature control accuracy and temperature fluctuation and uniformity, less than the foreign furnaces. In fact, it is not so general that it has always been a vague expression of the status quo. In fact, the kiln should be divided into three parts. At first, the market mature YAG system and the 1113 structure nitride red powder system fluorescent powder. In view of the two series of phosphors, domestic equipment factories and domestic fluorescent powder manufacturers have not been much different from foreign countries after many years of polishing equipment. This kind of equipment base has been domestically made. Secondly, the new phosphor system (such as nitrides green powder) has put forward higher requirements for the temperature and pressure of the equipment, and the equipment to meet this kind of phosphor is quite different from the foreign ones at present, such as the highest temperature, the maximum pressure, and the stability of the equipment. Finally, a new type of fluorescent powder system (such as fluoride system) is needed to meet the new phosphor preparation process. These new equipment are not sold directly at home and abroad. This requires the understanding of the technology and the development of new equipment with the equipment factory. This difficulty is higher and the quality is thrown away. The problem, this is also the current global production of fluoride mass production is concentrated in a few of the strong research and development of phosphor enterprises in the enterprise. Misunderstanding four: by raising the color index to "eliminate the Blu ray hazard", it is now a good and bad standard to judge the LED light source, and the whole spectrum in the phosphor is deified instantly, and can help LED to achieve the target of Ra100, but what is the full spectrum? In fact, the whole spectrum is just a broad sense The concept, not exactly defined, generally refers to high chromaticity. But using the current blue light to stimulate the white light produced by the phosphor is impossible to achieve in the true sense of the whole spectrum, and the hard pursuit of the whole spectrum will cause a great reduction in the light effect. In this regard, Dr. Liu Ronghui, a research rare earth, said that because of this, the research is currently developing the phosphor based on the near ultraviolet - violet light. This is a feasible scheme for the preparation of full spectral white light LED in the future, and this is the scheme proposed by Nakamura Shuji. For the full spectrum of Ra100, Dr. Liu Ronghui said that the color index is the result of a mathematical formula, not only the theoretical color index 100, but also not necessarily the best light source, because the blue light would have contributed to the color index, and no blue light is unlikely to make a high color finger. It is also not true to say that a number of light sources can be used to "eliminate the harm of blue light" by increasing the color index. An overview of the madness of the 2016 solar power