The development of LED industry needs more calm and rational

LED successful and mature application in the monochromatic light (red, blue and green three colors) applications, as the indicator in home appliances, electronics and electrical equipment, the use rate of more than 95%; as the traffic lights because of power consumption and the amount of information of the incandescent light bulb limit the LED lamp is gradually being replaced; as sports venues and public places, large screen display, LED champion. The main application of the development of the power type LED monochromatic light, including landscape decoration lighting, LCD backlighting, automotive lights, etc., with the continuous improvement of light efficiency, the utilization rate will increase rapidly. In short, LED lights and other lamps, compared with the application of monochromatic has unparalleled advantages, including red LED can not be ignored. White LED applications are still under development, in the light effect and color than other lights, in the long run, it is difficult to replace other lamps. The most popular application of the recent L ED white light is the green environmental protection of solar LED street lamp lighting, as a light to heat conversion of solar water heaters worthy of green energy saving device. However, as the LED light electric conversion is needed to store electrical energy device, it is only suitable for remote areas can not supply the power supply for the city, convenient but is not necessary, and the use of a large number of city battery will cause pollution to the environment, how can it be said to be green? Judging from the current level of light efficiency of white LED, but also lower than the fluorescent lamp and sodium lamp used on the road, which can not be said to be energy saving? Thus, in the promotion and application of white LED still need calm and rational. Industry and foreign LED in China the technology gap is larger, but the bigger gap epitaxial chip package, a smaller gap. The gap between the epitaxial chip is the biggest InGaAlP of red, orange, yellow LED, the current domestic products are still using epitaxial chip structure in 1990s, the red light effect is 10Lm/W, high efficiency and the use of wafer bonding technology (20Lm/W) is still in the blank of domestic epitaxial chip, the required products all rely on imports. Worrying is: China's InGaAlP red, orange, yellow LED industry has long been in a state of neglect. The blue-green InGaN epitaxial chip with white light lighting applications as the goal although as major science and technology projects to give strong support and development, but with foreign countries, there is still a large gap, high luminous efficiency under the electrode current using wafer bonding technology on epitaxial chip (>60Lm/W) power there is no domestic products. China LED packaging industry develops rapidly in recent years, some large-scale production of high-end LED products manufacturers although some process know-how in technology, but more for overseas similar product imitation and cloning". Low LED packaging products for small factories and workshops production, low prices, the number of large, called the world's crown. Epitaxial chip LED packaging industry for low-end products oversupply, prices of high-end products are hard to find, to area or base as a stronghold, low level of repetition, fight the enemy separately, the fierce competition, the possibility of domestic LED enterprises bigger and stronger integration. In short, the development of LED industry in China should be InGaAlP red, orange, yellow and blue and green InGaN simultaneously; the application of LED not only emphasize the semiconductor lighting, but also should take into account many other applications of LED; two of China's LED industry cross regional joint only to market-oriented to break the restriction of the regional economic division is possible. In the development of the semiconductor lighting industry in China, the need for more calm, rational and reflection.

Source: China building electrical network