UV LED why not large-scale industrialization?

This year, the slowdown in the growth rate of the LED industry development situation, more and more new technologies related to LED or lighting caused concern to the industry. Shi Moxi, quantum dots, visible light communication...... UV LED. Baidu about UV LED, you can find 152000 related results, to some extent, it has been a certain degree of concern. However, it is undeniable that the application form can be related to lighting, sterilization, medical, printing, biochemical detection, high density information storage and secure communication and other fields of technology, at present, for most people the impression is still confined to the traditional lighting, medical treatment and sterilization, and the lack of industrial application. However, these are only vague impression, Words alone are no proof. And look at the real situation of the development of a technology, as well as how the layout of the enterprise, the patent analysis has the right to speak.

According to the wavelength division, the UV light emitting diodes are divided into UV-ALED (320-410nm wavelength), UV-BLED (275-320nm) and UV-CLED (200-275nm). UV-ALED is mainly used for drying and curing, UV-B is used for biosensing, UV-C is used for sterilization and purification.

Due to a wide range of applications, has a huge market prospects, in recent years, the semiconductor lighting industry has become the focus of attention at home and abroad, there are many lighting companies to enter the field, such as honglitronic in May announced the use of deep ultraviolet (UVC) LED solutions effectively inhibit bacteria in the static water.

The three stage of patent layout in China

With the ultraviolet light emitting diode or UV LEDorUVLED "as keywords in Chinese patent database of UV LED patent applications in China were retrieved, add up to a total of 5342 pieces of invention and utility model patents, retrieve the date as of June 2015. As a result of the patent application disclosure lag reasons, from 2014 to 2015, the patent application for incomplete statistics.

Applications involving UV LED mainly include two categories, a class of applications involving UV LED chips, including the preparation and packaging of the chip; a variety of applications involving UV LED application form.

After the search found that the number of patent applications increased year by year, UV LED patent applications in China can be roughly divided into 3 stages. The first stage is 1996-2000 years, the amount of patent application is not much, the annual amount of patent application does not exceed 10, the second stage is 2000-2008 years, began to grow relatively slowly, the third stage since 2008, with the speed of hundreds of increase every year, has maintained rapid growth trend.

Apply to all kinds of statistics, H01L electrical components are mostly, followed by F21 lighting, application of the application form to the traditional application field of materials disinfection, water treatment, currency inspection, animal trapping and air purification are uv.

The top 20 applicants, with domestic universities and research institutes are the Institute of semiconductors Chinese Academy of Sciences and Beijing University of UV LED chip and package for the majority, and Soochow University, Zhejiang University, Chinese Academy of Sciences Institute of Sichuan University, Changchun by UV LED phosphor application, Fudan application involves a relatively wide, chip packaging and application of fluorescent powder are involved. The top 20 applicants in small enterprises, mainly in Japan, Taiwan and Taiwan enterprises, enterprises are mainly owned by Foxconn yarnyon energy and crystal technology exhibition, the patent application relates to chip packaging and disinfection application, domestic enterprises only enter Qingdao Jason appliances, the patent application relates to packaging and application of UV chip the main development and application of UV disinfection device to mainly, such as drinking water sterilizer, toothbrush sterilizer.

Three patent applications in China

As can be seen from the above statistics and analysis, the application of UV LED patent applications in China show the following characteristics:

UV LED packaging and application has gradually become the mainstream trend of patent layout from the annual development trend of patent applications, UV LED patent application is accompanied by the pace of progress in the development of ultraviolet LED technology. UV disinfection has been in the medical, air water purification applications, but due to the existence of the traditional ultraviolet light source of mercury pollution and large size, difficult assembly and other issues, on the application of UV light is not much, in 2000 2000, LED began to develop, but because the cost is relatively high, so a purple the application of LED began to increase, but relatively slow; after 2008, with the development of UV LED technology, cost reduction, especially in the ultraviolet LED package to improve the application of UV LED, also the attention of people, with the development of in-depth, more and more widely applied, the patent application quantity increases rapidly.

The traditional application of patent layout, less research field of high-end technology from patent application distribution, in recent years, with the development of UV LED chip, packaging technology, gradually turned to various application form and its preparation method and application. The application of UV LED is related to the fields of illumination, sterilization, medical treatment, printing, biochemical detection, high-density information storage and secure communication. At present, the application of the domestic application is mainly in the field of lighting, sterilization, medical and ink printing, and for biochemical testing, high-density information storage and secure communications in the field of research, rare application.

Technology is concentrated in the Institute, the lack of industrial applications from the type of patent applicants and country distribution, the applicant to the domestic research institutes, involving the chip, packaging and various forms of application. Taiwan abroad