Investment hot spots: LED lighting plastic parts prospects

Recently, the rise of LED lighting accessories market related to the pulling effect. As promising LED lighting accessories market prospects in the future, many of the Guangdong lighting plastic parts companies have started LED lighting accessories production.

Now ceiling lamps plastic plate profit has been very thin, and LED lighting accessories relatively high profit, is one of the important reasons for the manufacturers are eager to invest.

Such as Yongfu plastic factory Shunde Xingtan, specializing in the production of the original ceiling plate, but the product profit is very thin, so Jiangmen Hetang and plastic factory before the production of PVC plastic, since the beginning of last year, through the market survey, LED lighting industry market prospects are very good, we decided to focus on the LED barrier the tube shaped tube, and the lamp accessories, lamps fair and intends to increase the strength of the promotion, some supporting the Olympic project products to the market.

Many businesses believe that the fast development of LED lighting, plastic factory will according to the needs of the market to open mold or processing, the development of LED lighting plastic parts matching.

The current situation of the development of a LED process, UV

LED light emitting diode luminous efficiency has reached the level of thermal radiation light source, light intensity candlelight, radiation rich colors, especially white LED's birth, the application of LED products in the field of lighting products, has become a new and highly influential.

North of China's LED industry has initially formed in the Pearl River Delta, Yangtze River Delta, the southeast region of Beijing and Dalian and other four regions, each region has basically formed a relatively complete industrial chain.

Overall, China's LED industry high degree of industrialization pattern of South and the north, relying on many universities and research institutions strong product development. In this part of the industry, the most mature LED lighting industry.

The backlight source computer or appliance current LED application products from 3C products have simple indicator lights, audio panel, and then with the breakthrough and the brightness of technology promotion, has been developed to use mobile phone keypad backlight and backlight color screen mobile phone is currently the most popular. In addition, LED has also been applied to automobile brake lights, taillights, indoor lights. It can also be used in outdoor billboards, traffic lights, outdoor lighting, etc.. And in the future to achieve a breakthrough in technology and price trends driven by the view that, after 2007 will gradually replace the current lighting with fluorescent lamps.

There are three processes to produce white LED.

First light is mixed to produce white light with various colors, its principle is that the chroma in three basic color based. The specific method is to put the three red, green, blue LED placed very close to control the proportion of their respective output, mixed with white light can be obtained.

Second method is to use the blue fluorescent powder is coated outside LED. The specific process is that the emission peak at 450~470nm wavelength range of blue LED coated on the surface of rare earth garnet series phosphor, the phosphor emits light in blue light irradiation, this part of the blue light into yellow light and blue light can be formed after mixing the remaining white LED. Because of the rare earth garnet phosphor has two characteristics, first is the emission peak in the range of 500~580nm, the yellow light region at any position, then it is the best excitation wavelength in the range of 430~480nm in different position, so the choice of the phosphors, and with different wavelength of blue LED, white LED can be preparation of different color temperature. At the same time, the blue LED chip and method for coating fluorescent powder preparation of white LED can also be achieved in the following manner, with blue LED excitation green and red fluorescent powder, in which green fluorescent powder can be used as the emission peak of rare earth garnet phosphor 500~530nm, while the red phosphor has yet to find a sufficiently high luminous efficiency of materials usually, oxides or salts with europium or manganese activated, may also be europium activated organic luminescent materials. After the improvement of the phosphor, the red light was significantly enhanced.

Third methods to obtain white LED products. Due to the appearance of purple or ultraviolet LED, it provides the use of violet or ultraviolet light to stimulate the three primary phosphor or a variety of luminous color phosphor, thus obtaining the white light. Because of violet light, especially UV energy is higher than the blue, white LED light effect produced can be further improved, and its wider spectral range, color index can be further increased, and can be prepared with different color or different color LED products. White LED phosphor requirements in the UV lower energy, even under UV excitation has a higher luminous efficiency, which is widely used in three color phosphor compact fluorescent lamp is not suitable for the white LED demand, must develop white LED special three color or multicolor fluorescent powder, is the development of it is suitable for the application of fluorescent powder: red phosphors: Y2O2S:Eu3+, Y2O:Eu3+; green phosphor BaMgAl10O17:Mn2+, Ca8Mg (SiO4) 4Cl2:Eu2+, Mn2+; blue phosphor BaMgAl10O17:En2+, Sr5 (PO4) 3Cl:Eu2+.

Analysis of two, LED industry market prospects

Semiconductor lighting is widely used and advanced product technology, has been widely regarded as one of the high-tech field has the most potential for development. Semiconductor lighting industry has obvious effect of energy saving and environmental protection, is also considered to be a strategic high-tech industry.

LED industry has experienced two years ago in a downturn, China in recent years in the light emitting diode (LED) technology