Technology is not improperly belittle oneself nor blindly arrogant

What is the gap between the domestic power LED devices (including epitaxy, chip and package technology) and the imported LED devices? It is of great significance to promote the semiconductor lighting project and even the "ten cities" in order to realize the objective reality. In view of the current international and domestic industry actual situation, we do not improperly belittle oneself, do not blindly arrogant.

Domestic and imported LED LED production technology: the highest level of International Research Report for the United States CREE 161 lm/W (4689K color temperature and driving current for 350mA), but the foreign large power LED devices actual production is stable in the 80-100lm/W. Domestic power LED devices industrialization luminous efficiency is stable at 80-85lm/W, with the international level is close to 15-20% gap. It is worth mentioning that foreign countries have more than 20 years of history of the LED industry, only one of its investment technology and talent is the size of the total amount of investment in china. China from 2003 to start the national semiconductor lighting project, but also 6 years. Domestic chip factory is also the state and local governments, venture capital investment, and continued to be a variety of ministries and projects funded by national ministries and policy support. In accordance with the current pace of development of the domestic LED industry, specialist certified by the national Ministry of science and technology 863 program, we have the confidence and strength to achieve the goal of 100-130lm/W in the short term, to the current foreign 100lm/W level point the day and await for it!

Comparison of the cost of domestic LED devices and imported LED devices: at present, the price of foreign 100lm/W LED devices is about RMB25 yuan, in order to reduce costs, domestic manufacturers to increase the working current as a 3W to use. However, when the power is 3W, the actual efficiency will be reduced to 80lm/W. Visible lighting efficiency threshold of 80lm/W (LED), if the same to 3W to compare, the domestic 3 1W LED devices, the efficiency of the 80lm/W price is only about RMB18 yuan, cheaper than foreign devices by 30%. In the field of high-power semiconductor lighting applications, domestic LED devices have reached the threshold of 80lm/W lighting applications, the market has reached a certain scale. At present, the use of domestic high-power LED devices have been as many as 30 thousand lamps, after 1-2 years of testing, LED device life, reliability and other performance indicators have been widely recognized and accepted by customers. Domestic high power LED chip monthly production capacity has reached 100 thousand, fully meet the national Ministry of science and technology, the city of ten million plan market demand for ten.

In the semiconductor lighting market, from automotive lighting, backlight, industrial lighting and general lighting field, basic automotive lighting has been monopolized by European and American LED enterprises, the backlight market is Taiwan monopoly enterprises, industrial lighting and general lighting applications at present just crossed the threshold, the market has just started, China LED want to occupy a space for one person in the international market we must seize the current market opportunities. The national Ministry of science and technology to promote the construction of demonstration city of LED, if you don't pay attention to the use of domestic devices, so the foreign LED companies but will promote more rapid development, and the national Ministry of science and technology is contrary to the intention. LED industry needs to seriously and objectively adjust blindly rely on imported LED chip and inertial bias for domestic chip, give priority to the use of homemade chips and devices, the upstream and downstream industry chain closely, in order to truly promote the healthy development of the LED industry as a national industry!