On the four major errors of LED phosphors, which you have thought?

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.

The 2016 Nichia patent rights cases of enterprises

Writing this article is not to write about how powerful Japan is on LED patents, but when we are in this situation, but do not know the status quo, ignore some of the things we should know. In order to further analyze the LED phosphor patents and products in those errors, LEDinside consulting with rare earth research Dr. Liu Ronghui.

Myth: talk about patent barriers is phosphor

As we all know, the patent has been an important force in the LED industry, phosphor patent litigation on the entire LED industry has had a great impact. In particular, in recent years, the role of the role of sub critical chemistry from the low profile to the high-profile role of adults, pick up a lot of patent cases, the patent war upgrade, causing some concern LED manufacturers.

The patent rights war intensified, resulting in a patent infringement is caused by the misunderstanding of phosphor, but it is not the case. Although phosphor is one of the key materials in LED packaging, it is only one of the necessary components for white light devices. In addition to a few new phosphors, such as phosphor, in fact, other phosphor alone does not constitute infringement.

Myth two: the application of patent role

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, but also achieved a certain effect.

But the market came out of this patent is useless, can not play a substantive role, however, is not the case. In essence, any patent protection of intellectual property rights, but it is not limited to the latter's innovation. Although the performance of foreign countries in the field of phosphor and white light LED devices have achieved the initiative, but does not hinder the subsequent acquisition of intellectual property rights related units.

For the patent, we want to do is to respect the existing intellectual property rights, but also can not talk about intellectual property and color. Any patent has its limitations, which are involved in the continuous progress of technology, related to the specific patent to specific analysis, through the subsequent technical innovation to break the existing patent restrictions are possible.

In this regard, 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 point of view, 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 Chinese phosphor and LED devices in the field of patent strength.

Myth three: the country can not do a good job of phosphors

From Japan to buy toilet cover events, are in the transmission of a Japanese thing is a good idea, but people in the LED industry simply did not figure out the nature of things.

A lot of people say that the degree of foreign products can not reach the level of foreign products, in fact, not the domestic can not do, but because the domestic market is mainly driven by the price.

From raw materials, the world's main raw materials used in the production of LED phosphors are produced in China, which is at the same level at home and abroad. However, the selection and control of raw materials abroad is very strict to ensure product quality. Due to the different market environment, domestic customers pay attention to the price, in the choice of raw materials on a larger scale, the control of raw materials suppliers to a wider standard. There are rare earth products to control the consistency of the product, the majority of raw materials for the production of LED phosphor for self made, such as LuAG, nitride and fluoride phosphors are the core of raw materials are the group's internal customization.

Take the current equipment furnace, the market is the majority of the domestic furnace temperature control accuracy and temperature fluctuations and uniformity, are less than foreign kilns. In fact, can not be so general, has been vague expression of this situation.

For the kiln should be divided into three parts to see.

First of all, 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 differences.

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 real