What are the mistakes in LED phosphor patents and products?

Recently, the circle of friends and the public number is how powerful Japan to refresh it, regardless of the number of enterprises and innovation patent layout, Japan is actually the way ahead, the number from 2016 to Nichia patent rights cases can be seen. - 2016 Nichia patent rights case enterprise writing this article is not to write the Japanese more powerful in the LED patent, but when we are in such a situation, but do not know the situation, we should know what to ignore. In order to further analyse the mistakes in the patents and products of LED phosphors, LEDinside consulted Dr Liu Ronghui, who studies rare earths. A misunderstanding: the patent barrier is phosphor fluorescent powder has been patented as everyone knows, is an important force in the LED industry, phosphor patent litigation has great influence on the whole LED industry. In particular, in recent years, sub chemistry from the role of low profile research to the role of high-profile rights change, "pick" many patent cases, the escalation of the patent war, causing some LED vendors worried. This patent rights war intensifies, as a result of a mistake about patent infringement is caused by the fluorescent powder, but that is not the case. Although phosphor is one of the key materials in LED packaging, it is only one of the necessary component materials for white light devices. In addition to individual new nitride and other phosphors, in fact, other fluorescent powder alone does not constitute infringement. Misunderstanding two: patent application has little effect in the current LED phosphor patent war, through the new fluorescent powder composition and structure and application of the patent, really become an important way to break foreign patent white devices, and many enterprises are using this way to contain foreign patents, and has made certain effect. But the market came out is not what this patent, no substantive role, but not so. In essence, any patent protects intellectual property rights, but it does not limit latecomers' innovations. Although it has obtained the first chance in the field of phosphor and white light LED device in foreign countries, it does not prevent the relevant domestic units from acquiring intellectual property rights later. For patent, we have to do is to respect the existing intellectual property rights, but also can not talk about the mere mention of intellectual property rights. Any patent has its limitations, and its related technologies are constantly improving, involving specific patents should be analyzed in detail, and it is possible to break through the existing patent restrictions through subsequent technological innovation. This grirem, Dr. Liu Ronghui said, the people do not think subsequent patent domestic application is useless, even if the utility model patent gold content is low, as long as there is a role for the application value, enhance product performance, is the value of the patent. From the domestic phosphor patent application perspective, in recent years in the domestic patent LED fluorescent powder application field is very active, and from universities and research institutes to apply for a patent, paying attention to the patent application slowly to enterprise, it is very important to enhance the China phosphor and LED devices in the field of patent strength. Misunderstanding three: domestic fluorescent powder from not good to go to Japan to buy toilet cover events, all is good in the transmission of a Japanese things concept, but people in the LED industry did not understand the nature of things. Many people say that product sophistication of domestic products is not up to the foreign countries, domestic is not to do, but because of the domestic market mainly by price oriented. From raw materials, manufacturing LED fluorescent powder in the world is the main raw materials of rare earth Chinese production, this point at home and abroad at the same level. However, foreign selection and control of raw materials are very strict, in order to ensure product quality. Because the market environment is different, the domestic customer pays attention to is the performance to price ratio, in the raw material choice on the randomness is bigger, to the raw material supplier's control standard is broad. There are rare earth to control the consistency of products, most of the raw materials for LED phosphor production are home-made, such as LuAG, nitride and fluoride, phosphor core materials are the research group internal customization. Take the current equipment kiln, the market is coming out of the temperature control precision and the fluctuation of temperature and uniformity of the majority of domestic kiln, not foreign kiln. In fact, can not be so general terms, has been ambiguous expression of this situation. The kiln should be divided into three parts to see. First, the current market mature YAG system and structure system of 1113 nitride phosphor, fluorescent powder for the two series of domestic equipment factory and domestic phosphor manufacturers after so many years of equipment research, has not much difference in and abroad, this kind of equipment has been made. Secondly, the new system of fluorescent powder (such as nitride green powder) put forward higher requirements for temperature and pressure equipment, meet this kind of fluorescent powder equipment, currently made from the highest temperature, the maximum pressure, and the stability of equipment and other countries still have obvious difference. Finally, in need of new equipment to meet the phosphor system process of fluorescent powder preparation (such as the new fluoride system of this kind of equipment), there are no manufacturers sell directly, which requires the understanding of the process of the fluorescent powder factory, and then plant the common development of new equipment, the difficulty is high, regardless of the quality problem, which is currently the world's production to achieve fluoride focus on the reasons for a handful of phosphors developed stronger in the enterprise.