Patents allow mainland LED industry, the most hurt"

LED industry in its manufacturing process, it can be divided the upstream epitaxial growth, chip manufacturing and packaging in the middle reaches of the downstream three stages, there is one of the most upstream of the substrate manufacturers, usually sapphire substrates, including silicon carbide substrate CREE's unique cheats.

Epitaxial wafer must be produced by the MOCVD device, there is no MOCVD device, which means that only LED chip packaging manufacturers. MOCVD equipment by AXITRON, VEECO and sun acid three companies monopoly, the Japanese manufacturers are usually their own production of MOCVD equipment, a handful of equipment to buy solar acid. MOCVD is mainly divided into two kinds: one is red and yellow light, also known as four yuan; the other is blue and green, said $three. Red yellow light is mainly used for the production of character display with LED, large screen display, there is no technical threshold. After special processing such as blue and green surface coated with a special formulation of the fluorescent powder, from blue to white light, backlight source for all electronic products such as notebook computer and mobile phone TV, most of the LED, the so-called LED TV refers to the use of LED instead of CCFL backlight TV, there is a world of difference and OLED tv.

White LED is a complicated patent dispute, Japan Nichia first invention patent five, white, Nichia, OSRAM, ToyodaGosei, Cree and Lumileds almost took control of the white LED industry, this patent intensive, can be said to be not a minefield with Chinese enterprises to obtain white LED patent etc..

All LED lighting must be white, whether it is a flashlight, lamp or lamps, and all the back light must be white, that is to say, China no LED manufacturers to produce lighting and electronic products used in backlight LED, can only do those low tech billboards or the red and yellow light LED. Because they do not have a white LED patent.

Moreover, all of China's lighting LED chips are imported, mainly imported Cree company, which has a packaging base in Huizhou. All electronic products back light source with LED chips are imported, the mainland of these so-called LED lighting manufacturers are doing a system integration, packaging, do PCB board, do a shell, the technical content is basically zero.

The world's largest LED company Nichia announced in 2012 the results showed that in 2012 the company's revenue grew 6.8%, about $3 billion 200 million, is 3 times more Chinese, all LED epitaxial enterprise revenue. Nichia total profit of about $900 million, is 10 times Chinese, all wafer enterprises, excluding government subsidies, it will be 40 times. While the debt capital Nichia rate was only 7.6%, Chinese, LED enterprise capital debt rate above 60%. Nichia since 1999 the invention of Blu ray LED, is the first in the world in 13 years, Chinese mainland enterprises for at least 50 years behind arias.

The story of Nakamura Shuji, the father of white LED, makes people ponder. Shikoku is the smallest and poorest of the four islands in Japan, with a second rate National University in Japan, The University of Tokushima. Nakamura Shuji went to school in 1973, spent 6 years to get a master's degree in electronic engineering. Due to poor reputation in the village school, not like SONY first-class enterprise, finally recommended by the supervisor in the production of fluorescent powder between the Shikoku area of small companies - nichia. 3 years later in the village of repair will be published in the article on the two: a new method for the growth of gallium nitride metal organic chemical vapor deposition. This made it a sensation in the world semiconductor industry and the scientific community, to know when the world has many big companies and famous universities and research institutes in semiconductor blue light source film material preparation process of headache. Nakamura Shuji in the absence of laboratory technician, without assistance, with just 4 years to overcome two major problems: the material preparation process is a high quality GaN film growth; the other is the regulation of Gan hole conduction. In the village the Nichia repair was nearly 20000 billion yen benefit, not including the future and licensed to other companies patent income. Nichia has become the world's giant LED, but only Nichia pay him twenty thousand yen bonus. Nakamura Shuji left the company in 1999, the Japanese arthorn to compensation for 60 billion yen to 840 million yen in 2005, the two sides of reconciliation.