Recently, the circle of friends and the major public numbers have been swept by Japan. Whether it is the number of innovative companies or the layout of patents, Japan is far ahead. In fact, the number of patent rights cases from Japan in 2016 can be seen.
2016 Nichia Chemical Patent Rights Case Enterprise
Writing this article is not to write about how powerful Japan is in LED patents, but when we are in this status quo, we don't know the status quo and ignore some things we should know. This article has a deeper understanding of the misunderstandings in the patents and products of LED phosphors.
Misunderstanding 1: Talking about patent barriers is phosphor
As we all know, phosphor patents have always been an important force affecting the LED industry. Phosphor patent litigation cases have had a great impact on the entire LED industry. In particular, in recent years, Nichia has shifted from the role of low-key research to the role of high-profile rights protection, "picked up" a number of patent cases, and upgraded the patent war, causing concern among some LED manufacturers.
The intensification of this patent rights warfare led to the misunderstanding caused by patent infringement, but this is not the case. Although phosphor is one of the key materials for LED packaging, it is only one of the necessary building materials for white light devices. In addition to phosphors such as individual new nitrides, in fact, other phosphors alone do not constitute infringement.
Misunderstanding 2: Application-type patents have little effect
In the current LED phosphor patent war, by obtaining new phosphor composition and structure and application patents, it has become an important way to crack the patents of foreign white light devices, and many companies basically use this approach to contain foreign invention patents, and also A certain effect has been achieved.
However, the market has come out that such a patent is useless and does not play a substantial role, but it is not. In essence, any patent protects intellectual property, but it does not limit the innovation of latecomers. The performance is that although foreign countries have taken the lead in the field of phosphors and white LED devices, they do not hinder the subsequent acquisition of intellectual property rights by relevant domestic units.
As far as patents are concerned, what we need to do is to respect existing intellectual property rights, but we cannot talk about intellectual property and change colors. Any patent has its limitations, and the technologies involved are constantly improving. It involves the specific analysis of specific patents, and it is possible to break through the limitations of existing patents through subsequent technological innovations.
In this regard, Dr. Liu Ronghui, a researcher of rare earths, said that his individual does not think that the follow-up patents for domestic applications are useless. Even if the utility model patents with low gold content are useful, they have a value for product performance and are valuable. Patent.
From the perspective of domestic phosphor patent application, in recent years, domestic patent applications in the field of LED phosphors are very active, and the original universities and research institutes applied for patents, and gradually turned to enterprises to pay attention to patent applications. The patent strength of Chinese phosphors and even LED devices is very important.
Misunderstanding 3: China can not do a good phosphor
From the time of going to Japan to buy a toilet cover, it is a good idea to transmit a Japanese thing, but people in the LED industry simply did not understand the nature of the matter.
Many people say that the fineness of foreign products of domestic products does not reach foreign countries. In fact, it is not domestically impossible, but because the domestic market is mainly dominated by price/performance ratio.
From the raw materials, the world's main rare earth raw materials for LED phosphor manufacturing are produced in China, which is at the same level at home and abroad. However, foreign selection and control of raw materials are very strict to ensure product quality. Due to the different market environment, domestic customers pay attention to the cost performance, the randomness of raw material selection is relatively large, and the control standards for raw material suppliers are wide. There are research rare earths to control product consistency. Most of the raw materials for LED phosphor production are self-made. The core raw materials such as LuAG, nitride and fluoride phosphors are all customized by the research group.
Take the current equipment kiln, the market is the temperature control accuracy and temperature fluctuations and uniformity of most domestic kiln, not comparable to foreign kiln. In fact, it cannot be said in general terms that it has always been an ambiguous expression of the status quo.
For the kiln, it should be divided into three parts to see.
First of all, the current market mature YAG system and 1113 structure nitride red powder system phosphors, for these two series of phosphors, domestic equipment manufacturers and domestic phosphor manufacturers after so many years of equipment, have not much difference with foreign countries This type of equipment has basically been localized.
Secondly, the new phosphor system (such as nitride green powder) puts higher requirements on the temperature and pressure of the equipment, and the equipment that meets such phosphors is currently made from the highest temperature, maximum pressure, and equipment stability. There are still obvious differences with foreign countries.
Finally, there is a need for new equipment to meet the new phosphor preparation process of phosphor systems (such as fluoride systems), such new equipment is not directly sold by manufacturers at home and abroad, which requires the phosphor factory to understand the process, and then with the equipment factory To jointly develop new equipment, this difficulty is relatively high, and the quality problem is put aside. This is also the reason why the global mass production of fluoride is concentrated in a few companies with strong R&D capabilities.
Misunderstanding 4: By "increasing the color rendering index to "eliminate Blu-ray hazards"
Gao Xianzhi has become the standard for judging the LED light source, and the full spectrum of the phosphor is instantly deified, which can help the LED achieve the goal of Ra100, but what is the full spectrum?
In fact, the full spectrum is only a general concept, not accurately defined, generally refers to high color rendering. However, the white light prepared by the current blue light excitation phosphor is impossible to achieve the full spectrum in the true sense, and the hard pursuit of the full spectrum will inevitably lead to a significant reduction in light efficiency.
In this regard, Dr. Liu Ronghui, a researcher of rare earths, said that because of this, research is currently developing phosphors based on near-ultraviolet-violet excitation, which is a feasible solution for the preparation of full-spectrum white LEDs in the future. This is also the proposal proposed by Nakamura Shuji.
For the full spectrum of Ra100, Dr. Liu Ronghui said that the color rendering index was originally a mathematical formula calculation, which not only reached the theoretical color rendering index of 100, but also not necessarily the best illumination source, because the blue light originally developed color. The index has contributed. It is unlikely that a blue light source will produce a light source with a high color rendering index. Therefore, it is not true that the color rendering index is used to "eliminate the blue light hazard".
List of Japan’s crazy Asian rights defending events in 2016
Editor: Yingzi
Acer has a reputation as an economy range laptop brand which is designed with price competiveness in mind. so as a result, the demand for the Acer Laptop Charger is huge.
Acer laptop charger includes Acer Aspire charger series, Acer TravelMate charger series, Acer Chromebook charger series and so on. The common Acer laptop charger specification has 19V 3.16A 60W, 19V 3.42A 65W, 19V 4.74A 90W and 19V 7.9A 150W etc, and the dc tip has common 5.5*2.1mm, 5.5*2.5mm, 5.5*1.7mm and round 4 pin etc.
If your original Acer charger is not work anymore, please tell us your laptop model, we will help select the correct OEM replacement Acer Adapter for you. Our laptop adapter is with smart IC to protect your laptop with over current protection, over load protection, short circuit protection and over heat protection.
Acer Laptop Charger,Acer Computer Charger,Acer Notebook Charger,Acer Aspire Charger
Shenzhen Yidashun Technology Co., Ltd. , https://www.ydsadapter.com