【正文】 dex is very important evaluation. This experiment using blue, yellow blending methods produce white LED, so the performance of red is bad, causing part of the spectrum is not continuous, the spectrum can not be part of reflection to the human eye, which will feel the objects in the human eye color distortion. At present, the insider has been trying to use ultraviolet lightemitting chip make up RGB luminous powder, to fill the existing lack of red performance deficiencies of LED white light , but because ultraviolet luminous energy, extremely easy to destroy many seal materials, if works as when epoxy resin ultraviolet ray longterm illumination, its structure in contains under the oxygen environment the very easy broken bond deterioration, produces the color machine group, causes the seal material yellow stain, then largely influence the white light LED brightness and white homogeneity. Therefore, the development of antiultraviolet transparent materials as a package bee enhances the colored index uniform new challenge. Coclusion In brief, highpower white light LED package is a multidisciplinary involved, such as optical, electrical, thermal, materials and other study. From a certain perspective, highpower white light LED package is not only a manufacturing technology, but also a constant innovation in the development of basic sciences. The need for good packaging technology of optical, electrical, thermal, materials and other physical nature of the understanding and use of the package to be introduced to update the structural design and process technology.附錄B 大功率白光LED封裝工藝技術(shù)與研制與傳統(tǒng)的白熾燈、熒光燈照明相比，由于大功率白光LED具有顯著的節(jié)能、環(huán)保、使用壽命長等一系列不可比擬的優(yōu)勢，代表著新型綠色、環(huán)保照明的發(fā)展方向，正迅速進軍照明領(lǐng)域。 applications in the market, according to lighting differences in optical design of the needs of the market demand for the pany39。 chip PN junction from the heat generated by gold wire solder through a direct transfer to the Si substrate and heat sink, the heat transfer is far superior to the effect of Sapphire is mounted cooling structure。 poor of the closeup color。 red, green and blue multicolor binationsHigh luminous efficiency。 limited phosphor coating, so thewhite light is not evenZnSe single grainBlue LED + ZnSe substrate Single grain product white light, low cost。 fluorescent material is not easy to find。s lighting is more than 300 billion, to replace all incandescent lamps with LED or in part or to replace the fluorescent lamp, can save 1 / 3 of the lighting electricity, means that the saving of 1 000 billion kwh, representing the fullyear39。附錄A Researchamp。s advantages is in energy saving, environmental protection and longlived three aspects. LED does not depend on heating filament to lightemitting, energy conversion efficiency is very high, in theory only 10% of the energy consumption of incandescent. pared with fluorescent, LED can be up to 50% of the energy saving effect. Special survey showed that the annual electricity consumption of China39。 of poor color。 packaging materials are easy to produce ultraviolet by UV light 。 short life, only 8000hDualwave single grainwhite lightSingle grain product white light,Other to be done to be doneMultigrainGreen, blue amp。 natural colorThe needs of three grains, the grain of the need for individual electronic circuit design, high cost。s reliability, constraint of the LED chip operating current . At the same time, such a structure is installed through the PN junction calories derived sapphire substrates, sapphire is the thermal conductivity 35 W / (mK) (worse than the metal layers), a larger therm