(a) an application for a patent for the global situation analysis

LED industry technology patent application began in the fifties and sixties of the last century, figure 1 shows a amount of patent from 1960 to 2013 at the earliest date of filing the annual distribution. Can be seen from the diagram, the global LED industry technology patent Numbers are still growing trend, to the late eighty s, the global LED patent applications for more than 1000 pieces, at the beginning of the 21st century to patent quantity rapid growth in recent years, to 2004 years application has more than 10000 pieces, apply for a patent in 2008, 20000, 2010 patent quantity more than 30000, the global LED industry in rapid development period.

Figure 1 global patent annual change

(2) the regional distribution of global patent applications

From the global LED industry technology application for a patent for the regional distribution of 2 you can see, the patent application in the field of distribution of the top ten countries and regions as Japan, China, the United States, South Korea, Europe (apply for) in the European Patent Office, China, Taiwan, Germany, Australia, Canada, the United Kingdom. The patent filings in the Japan to 82853, accounting for 27.18% of the total global application; In China and the United States patent filings are respectively 79148 and 57027 of them, the second and third, respectively 25.97% and 18.71% of the total global application; And South Korea, Europe, China Taiwan and Germany patent filings. Overall, LED technology in Japan, China and the United States in the field of patent application is the most active, with China and the United States patent quantity proportion rising, South Korea, Taiwan, Europe and the German patent application is active. Compared with 2012 in 2012, China's total more than the United States to apply for a patent, the second place, second only to Japan, it also reflects our country to the attention of the LED industry in recent years.

Figure 2 regional distribution of global patent applications

From the global LED industry technology patent application area of the original map 3, you can see that the original area of an application for a patent for the field are mainly distributed in China, Japan, the United States, South Korea, Europe, Taiwan, China, Germany, Britain, Canada, France and other countries/regions. Between the two countries in the original patent filings are about the same, the original patent application in China for 63636, the amount of original patent in Japan and the United States are 62182 and 50007 respectively, far more than other countries/regions.

Figure 3 global patent application original area distribution (merge kin patent)

From the global LED industry technology annual variation of the original patent application of four, you can see that in Japan, the United States patent application for the original start earlier, about 1960 years before and after. Before 2000, the original patent applications are less stable and application trends in Japan during the period of the original number of patents. Since 2000, every country's patent in the growth of the large amplitude, in which China and the United States is growing rapidly, China's original 2012 patent applications for more than 14000 items, far more than other countries.

(3) the global distribution of patent technology

Habit according to the technical characteristics of the leds and industry, this report will be divided into LED industry application, equipment, raw materials, drive circuit, encapsulation, denotation, chip seven parts. Which involves the application of patent applications continue to rise, up to 169277, accounting for 44.7% of the total, and involve LED shelter-forest industry patent quantity is less, also can be seen from the table, the epitaxial chips in this part in at the end of the two.

In an attempt to better understand the technology, the development situation of every year we adopt ThemeScape patent map to analyze each technical point in different period, mapped the denotation, chips, encapsulation technology roadmap, as can be seen from the figure 6 to 8, 1998-2013 extension, chips, encapsulation technologies such as every three years the emphasis of the development and related patent quantity distribution.

(4) the applicant for a patent for global distribution

In the top 10 LED in the field of industrial technology in the global patent applicants, most of the applicant in Japan, a total of five. Among them, the most samsung filings, accounted for 3.61% of global patent filings, followed by LG and sharp, accounted for 3.04% and 3.02% of the global application.

The global distribution of the applicant for a patent in table 1

From the global LED mainly the applicant for a patent filings year trend diagram can be seen that, 1999 years ago, samsung, LG philips and patent filings are not more than 200 each year, from 1999 after philips stay ahead, but 2003 years later, samsung's rapid growth of patent applications, gradually opened the gap with other two applicants. In recent years, the rapid growth of patent applications also LG, and patent filings in 2009 more than the other two applicants.